CN111054020B - Barbell clips and barbell - Google Patents
Barbell clips and barbell Download PDFInfo
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- CN111054020B CN111054020B CN202010066369.8A CN202010066369A CN111054020B CN 111054020 B CN111054020 B CN 111054020B CN 202010066369 A CN202010066369 A CN 202010066369A CN 111054020 B CN111054020 B CN 111054020B
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- buckle
- barbell
- clamping rod
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
- A63B21/0724—Bar-bells; Hand bars
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
- A63B21/0728—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle with means for fixing weights on bars, i.e. fixing olympic discs or bumper plates on bar-bells or dumb-bells
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
- A63B21/075—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle with variable weights, e.g. weight systems with weight selecting means for bar-bells or dumb-bells
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Clamps And Clips (AREA)
Abstract
本发明提供一种杠铃卡扣和杠铃，该杠铃卡扣包括卡簧件；该卡簧件包括依次连接的第一夹杆、弧形本体和第二夹杆；弧形本体由金属材料制成；第一夹杆延伸方向上的延伸线与第二夹杆延伸方向上的延伸线相交于弧形本体包围的区域内，且第一夹杆延伸方向上的延伸线与第二夹杆延伸方向上的延伸线之间的夹角呈锐角。本发明缓解了现有技术中存在的杠铃卡扣锁紧空间固定不可调节，锁合于杠铃杆上后容易打滑、制造成本高、操作复杂、且功能单一的技术问题。
The present invention provides a barbell buckle and a barbell, wherein the barbell buckle comprises a spring clip; the spring clip comprises a first clamping rod, an arc-shaped body and a second clamping rod connected in sequence; the arc-shaped body is made of a metal material; an extension line of the first clamping rod in an extension direction and an extension line of the second clamping rod in an extension direction intersect in an area surrounded by the arc-shaped body, and an angle between the extension line of the first clamping rod in an extension direction and the extension line of the second clamping rod in an extension direction is an acute angle. The present invention alleviates the technical problems existing in the prior art that the locking space of the barbell buckle is fixed and cannot be adjusted, it is easy to slip after being locked on the barbell bar, the manufacturing cost is high, the operation is complicated, and the function is single.
Description
Technical Field
The invention relates to the technical field of fitness equipment, in particular to a barbell buckle and a barbell.
Background
At present, barbells are widely used by people as a common exercise device.
The barbell at least comprises a barbell rod, barbell weights and barbell buckles used for fixing the barbell weights, the barbell buckles used in the prior art are various in structure, a common structure can be seen in patent CN201520875134.8, the structural drawing of the barbell buckles is shown in figure 1, the barbell buckles of the structure are fixed in locking space and cannot be adjusted, and the barbell buckles are locked on the barbell rod and are easy to slip, high in manufacturing cost, complex to operate, single in function and the like.
Disclosure of Invention
The invention aims to provide a barbell buckle, which is used for solving the technical problems that the barbell buckle in the prior art is fixed in locking space and not adjustable, and is easy to slip, high in manufacturing cost, complex in operation and single in function after being locked on a barbell rod.
The following technical scheme is adopted for realizing the purpose of the invention:
The first aspect of the embodiment of the invention provides a barbell buckle, which comprises a clamping spring piece, wherein the clamping spring piece comprises a first clamping rod, an arc-shaped body and a second clamping rod which are sequentially connected, the arc-shaped body is made of a metal material, an extending line in the extending direction of the first clamping rod and an extending line in the extending direction of the second clamping rod intersect in a region surrounded by the arc-shaped body, and an included angle between the extending line in the extending direction of the first clamping rod and the extending line in the extending direction of the second clamping rod is an acute angle.
The first clamping rod, the arc-shaped body and the second clamping rod are made of metal materials, and the first clamping rod, the arc-shaped body and the second clamping rod are sequentially connected to form an integrated structure.
Optionally, the metallic material comprises spring steel.
Optionally, a protective sleeve made of an elastic material is coated on the outer part of the first clamping rod and the outer part of the second clamping rod, and/or a protective sleeve made of an elastic material is coated on the outer part of the arc-shaped body.
Optionally, a protective sleeve made of elastic material is coated on the outer part of the arc-shaped body.
Optionally, the protective sleeve is made of rubber, including rare earth butadiene rubber.
The first clamping rod and the second clamping rod are made of rubber, one end of the arc-shaped body is injection molded in the first clamping rod, and the other end of the arc-shaped body is injection molded in the second clamping rod;
And/or the included angle between the first clamping rod and the plane where the arc-shaped body is located and the included angle between the second clamping rod and the plane where the arc-shaped body is located are acute angles.
Optionally, the barbell buckle further comprises a locking member, wherein the locking member is used for locking the first clamping rod and the second clamping rod under the working condition that the first clamping rod and the second clamping rod are close to each other.
Optionally, the locking member comprises a locking member body, wherein two ends of the locking member body are respectively bent towards the directions facing each other to form a hook shape, and the locking member is configured such that under the working condition that the first clamping rod and the second clamping rod are close to each other, one end of the locking member body is hooked at the connection part of the first clamping rod and the arc-shaped body, and the other end of the locking member body is hooked at the connection part of the second clamping rod and the arc-shaped body, so as to lock the first clamping rod and the second clamping rod.
Optionally, the locking member includes a first buckle and a second buckle, where the first buckle and the second buckle include respective buckle bodies;
In the first buckle or the second buckle, one end in the length direction of the buckle body is taken as the left end of the buckle body, the other end in the length direction of the buckle body is taken as the right end of the buckle body, the end face of one end in the thickness direction of the buckle body is taken as the front side face of the buckle body, the end face of the other end in the thickness direction of the buckle body is taken as the rear side face of the buckle body, one thickness face of the buckle body is taken as the upper side face of the buckle body, and the other thickness face of the buckle body is taken as the lower side face of the buckle body;
The left end of the buckle body is bent towards the front side surface of the buckle body to form a sleeving part, the right end of the buckle body is provided with a clamping part protruding towards the front side surface of the buckle body, the upper side surface of the buckle body is inclined downwards obliquely from the left end of the buckle body towards the right end of the buckle body, and the clamping part is inclined downwards obliquely from the right end of the buckle body towards the left end of the buckle body;
The first buckle and the second buckle are configured to be capable of being oppositely arranged under the working condition that the first clamping rod and the second clamping rod are close to each other, the clamping part of the first buckle and the clamping part of the second buckle are mutually hooked and clamped, the sleeved part of the first buckle is sleeved on the first clamping rod, the sleeved part of the second buckle is sleeved on the second clamping rod, and the first clamping rod and the second clamping rod are locked in a mode of locking.
Optionally, in the first buckle or the second buckle, an included angle between the upper side surface of the buckle body and a horizontal plane is 14-16 degrees, and/or the clamping part of the buckle body is inclined along a straight line direction, and an included angle between the clamping part and a horizontal direction is 74-76 degrees.
Optionally, a non-slip protrusion is provided on the front side of the clasp body, and/or a turning handle is provided on the left end of the clasp body.
Optionally, the first buckle and the second buckle are both made of carbon fiber reinforced polyetheretherketone composite materials.
In addition, the second aspect of the embodiment of the invention also provides a barbell, and the barbell is provided with the barbell buckle in any one of the previous embodiments.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
the first aspect of the embodiment of the invention provides a barbell buckle, which comprises a clamping spring piece, wherein the clamping spring piece comprises a first clamping rod, an arc-shaped body and a second clamping rod which are sequentially connected, the arc-shaped body is made of a metal material, an extending line in the extending direction of the first clamping rod and an extending line in the extending direction of the second clamping rod intersect in a region surrounded by the arc-shaped body, and an included angle between the extending line in the extending direction of the first clamping rod and the extending line in the extending direction of the second clamping rod is an acute angle.
In the embodiment of the invention, the barbell weight can be firstly arranged on the barbell bar, then the arc-shaped body of the barbell buckle is sleeved on the barbell bar and is tightly attached to the barbell weight, then the first clamping bar and the second clamping bar are mutually close by holding the first clamping bar and the second clamping bar by hand, and then the part of the first clamping bar, which is connected with the arc-shaped body, and the part of the second clamping bar, which is connected with the arc-shaped body, are locked by using structural members such as ropes or metal wires, so that the first clamping bar and the second clamping bar are fixed, and the fixing function of the barbell weight is further realized.
In the structure of barbell buckle that this embodiment provided, because the arc body is made by having elastic metal material to, under the operating mode that first clamp lever and second clamp lever are close to each other, have the motion trend of keeping away from each other all the time between first clamp lever and the second clamp lever, the contained angle after first clamp lever and the second clamp lever locking can be adjusted in a flexible way according to the diameter of barbell lever, thereby, be difficult for droing after the locking. Through multiple test detection, under the locking state, the locking force value of the clamp spring piece on the barbell bar can bear more than 105kg of weight, and is twice as high as the locking force value which can be provided by the barbell buckle in the prior art, and the locking state is more reliable; in addition, the barbell buckle provided by the embodiment has the beneficial effects of simple structure, convenient manufacture and low processing cost, no matter the barbell buckle is operated to enable the barbell buckle to be in a locking state or a releasing state, the operation process only needs to be operated by a single person, the processing process is short in time consumption, and the barbell buckle has the beneficial effects of being simple in use mode and convenient to operate.
In addition, the clamping spring piece in the barbell buckle provided by the embodiment of the invention not only has the function of clamping and fixing the barbell weight, but also can be used for human body exercise. Specifically, the barbell can only exercise the large arm part of the human arm by lifting or falling back, but cannot exercise the small arm of the human arm. In contrast, in the embodiment of the invention, the clamp spring can be used for exercising the small arm of the human arm, and the exercising process is as follows, when the first clamp rod and the second clamp rod are held by hands to enable the first clamp rod and the second clamp rod to be close to each other, the muscle on the small arm of the human arm is in a tight state, when the hand of a person loosens, the first clamp rod and the second clamp rod are far away from each other under the action of the resilience force of the compressed arc-shaped body, so that the first clamp rod and the second clamp rod return to the initial position, and at the moment, the first clamp rod and the second clamp rod are held again to enable the first clamp rod and the second clamp rod to be close to each other, the purpose of exercising the small arm of the human arm can be achieved through repeated actions, and the nerves and the muscle on the hand of the person can also be exercised when the small arm of the human arm is exercised.
In addition, a second aspect of the embodiment of the invention also provides a barbell, wherein the barbell is provided with the barbell buckle. The barbell provided by the second aspect of the embodiment of the invention can achieve all the beneficial effects achieved by the barbell buckle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the whole structure of a barbell buckle in the prior art;
fig. 2 is a schematic diagram of an overall structure of a clamp spring in a barbell buckle according to an embodiment of the present invention in a first view angle;
Fig. 3 is a schematic diagram of an overall structure of a clamp spring in a barbell buckle according to a second view angle of the present invention;
FIG. 4 is a top view of FIG. 3;
Fig. 5 is a schematic overall structure of a first alternative structure of a locking member in a barbell buckle according to an embodiment of the present invention;
Fig. 6 is a schematic overall structure of a second alternative structure of a locking member of a barbell buckle according to an embodiment of the present invention, where the first buckle or the second buckle is viewed from one angle;
Fig. 7 is a front view of the first buckle or the second buckle in the second alternative structure of the locking member in the barbell buckle according to the embodiment of the present invention;
Fig. 8 is a schematic diagram of the overall structure of the second alternative structure of the locking member in the barbell buckle according to the embodiment of the present invention, in another view angle of the first buckle or the second buckle;
fig. 9 is a rear view of the first buckle or the second buckle in a second alternative structure of the locking member in the barbell buckle according to the embodiment of the present invention;
Fig. 10 is an axial side view of an assembly structure of a first buckle and a second buckle in a second alternative structure of a locking member in a barbell buckle according to an embodiment of the present invention;
FIG. 11 is a front view of the assembled structures of the first and second clasps in a second alternative configuration of the locking member in the barbell clasp provided by the embodiment of the present invention;
fig. 12 is a schematic overall structure of a first alternative structure of a barbell according to an embodiment of the present invention;
FIG. 13 is an enlarged view of a portion of the mounting structure of the barbell clip of FIG. 12;
The icons comprise 01-clamp spring piece, 02-locking piece, 021-first buckle, 022-second buckle, 1-first clamping rod, 2-arc-shaped body, 3-second clamping rod, 40-rear side face, 41-upper side face, 42-front side face, 43-sleeve joint part, 44-clamping part, 45-anti-slip bump and 46-rotating handle.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Specific embodiments thereof will be described below in accordance with the structure of the embodiment of the present invention.
Example 1
At present, barbells are widely used by people as a common exercise device.
The barbell at least comprises a barbell rod, barbell weights and barbell buckles used for fixing the barbell weights, the barbell buckles used in the prior art are various in structure, a common structure can be seen in patent CN201520875134.8, the structural drawing of the barbell buckles is shown in figure 1, the barbell buckles of the structure are fixed in locking space and cannot be adjusted, and the barbell buckles are locked on the barbell rod and are easy to slip, high in manufacturing cost, complex to operate, single in function and the like.
In contrast, the present embodiment provides a barbell buckle, referring to fig. 2, 3 and 4, where the barbell buckle includes a clip element 01, the clip element 01 includes a first clamping rod 1, an arc-shaped body 2 and a second clamping rod 3 that are sequentially connected, the arc-shaped body 2 is made of a metal material, an extension line in the extension direction of the first clamping rod 1 and an extension line in the extension direction of the second clamping rod 3 intersect in a region surrounded by the arc-shaped body 2, and an included angle between the extension line in the extension direction of the first clamping rod 1 and the extension line in the extension direction of the second clamping rod 3 is an acute angle.
In this embodiment, the barbell weight may be first mounted on the barbell bar, and then the arc-shaped body 2 of the barbell buckle is sleeved on the barbell bar and the arc-shaped body 2 is attached to the barbell weight, then the first clamping bar 1 and the second clamping bar 3 are held by hand, so that the first clamping bar 1 and the second clamping bar 3 are close to each other, and then the part where the first clamping bar 1 is connected with the arc-shaped body 2 and the part where the second clamping bar 3 is connected with the arc-shaped body 2 are locked by using a rope or a metal wire, so as to fix the first clamping bar 1 and the second clamping bar 3, thereby realizing the fixing function of the barbell weight.
In the structure of the barbell buckle provided in this embodiment, since the arc-shaped body 2 is made of a metal material with elasticity, under the working condition that the first clamping rod 1 and the second clamping rod 3 are close to each other, the first clamping rod 1 and the second clamping rod 3 always have a moving trend of being far away from each other, and an included angle between the first clamping rod 1 and the second clamping rod 2 after locking can be flexibly adjusted according to the diameter of the barbell rod, so that the barbell buckle is not easy to fall off after locking. Through multiple test detection, under the locking state, the locking force value of the clamp spring element 01 on the barbell bar can bear more than 105kg of weight, and is more than twice of the locking force value which can be provided by the barbell buckle in the prior art listed in the embodiment, and the locking state is more reliable; in addition, the barbell buckle provided by the embodiment has the beneficial effects of simple structure, convenient manufacture and low processing cost, no matter the barbell buckle is operated to enable the barbell buckle to be in a locking state or a releasing state, the operation process only needs to be operated by a single person, the processing process is short in time consumption, and the barbell buckle has the beneficial effects of being simple in use mode and convenient to operate.
In addition, the clamping spring piece 01 in the barbell buckle provided by the embodiment can be used for human body exercise besides the function of clamping the barbell weight. Specifically, the barbell can only exercise the large arm part of the human arm by lifting or falling back, but cannot exercise the small arm of the human arm. In contrast, in the embodiment of the invention, the clamp spring 01 can be used for exercising the forearm of the human arm, and the exercising process is that when the first clamp rod 1 and the second clamp rod 3 are held by hands to enable the first clamp rod 1 and the second clamp rod 3 to approach each other, the muscle on the forearm of the human arm is in a tight state, when the human hand is loose, the first clamp rod 1 and the second clamp rod 3 are separated from each other under the action of the resilience force of the compressed arc-shaped body 2, so that the first clamp rod 1 and the second clamp rod 3 return to the initial position, and at the moment, the first clamp rod 1 and the second clamp rod 3 are held again to enable the first clamp rod 1 and the second clamp rod 3 to approach each other, the purpose of exercising the forearm of the human arm can be achieved through repeated actions, and the nerve and the muscle on the human hand are exercised at the same time.
Further, in at least one alternative implementation of the present embodiment, the first clamping bar 1, the arc-shaped body 2 and the second clamping bar 3 are all made of metal materials, and the first clamping bar 1, the arc-shaped body 2 and the second clamping bar 3 are sequentially connected to form an integrally formed structure.
In various alternative implementations of the present embodiment, the metallic material may be selected from a variety of types including, but not limited to, alloy spring steel, and spring steel is preferably used, with the advantages of being strong, durable, environmentally friendly, long in service life, and the like.
On the basis of the alternative embodiment that the first clamping rod 1, the arc-shaped body 2 and the second clamping rod 3 are made of metal materials, and the first clamping rod 1, the arc-shaped body 2 and the second clamping rod 3 are sequentially connected to form an integrated structure, further optionally, the outer part of the first clamping rod 1 and the outer part of the second clamping rod 2 are both coated with protective sleeves made of elastic materials, so that friction force between hands and the first clamping rod 1 and the second clamping rod 2 can be increased by using the protective sleeves, the hands can conveniently operate and clamp and loosen the first clamping rod 1 and the second clamping rod 2, and/or the outer part of the arc-shaped body 2 is coated with the protective sleeves made of elastic materials, so that under the condition that the two ends of the arc-shaped body 2 are compressed to be in a bending state, the protective sleeves are compressed in a gap between the arc-shaped body 2 and the barbell rod, and therefore locking force in a locking state is further improved. Wherein "and/or" means that, of the two structures, "the outer part of the first clamping bar 1 and the outer part of the second clamping bar 2 are both covered with the protective sleeve made of elastic material" and "the outer part of the arc-shaped body 2 is covered with the protective sleeve made of elastic material", only the former structure is provided, or only the latter structure is provided, or both the former structure and the latter structure are provided. In other alternative implementations of the present embodiment, the outer portion of the arc-shaped body 2 may be covered with a protective sleeve made of an elastic material, and in various alternative implementations of the outer portion of the arc-shaped body 2 being covered with a protective sleeve made of an elastic material, the thickness of the protective sleeve covered on the outer portion of the arc-shaped body 2 may be, but is not limited to, 8 mm-10 mm.
In the alternative embodiment with the protective sleeve, the protective sleeve can be made of various elastic materials, such as but not limited to thermoplastic Rubber (TPR), thermoplastic vulcanized Rubber (Thermoplastic Vulcanizate, TPV), thermoplastic polyurethane elastomer Rubber (Thermoplastic polyurethane, TPU), thermoplastic elastomer material (Thermoplastic Elastomer, TPE) and the like, preferably the protective sleeve is made of Rubber, wherein the Rubber comprises but not limited to rare earth butadiene Rubber, rare earth butadiene Rubber is also named as neodymium butadiene Rubber because of rare earth neodymium compound, and is a butadiene Rubber polymerized by a catalytic system taking rare earth neodymium as a main body, and meanwhile, the protective sleeve is also a variety with the highest structural regularity, the most perfect linear structure and the best scorch resistance of the compound Rubber, and the protective sleeve also has the advantages of high vulcanization speed, 300 percent tensile strength, hardness, tearing strength and wear resistance which are superior to the common butadiene Rubber. The rubber has the beneficial effects of long service life and difficult slipping.
In addition, in at least one alternative implementation manner of the embodiment, the first clamping rod 1 and the second clamping rod 3 are made of rubber, one end of the arc-shaped body 2 is injection molded in the first clamping rod 1, and the other end of the arc-shaped body 2 is injection molded in the second clamping rod 2, so that the novel clamping device has the advantages of being simple in structure and long in service life.
In addition, as shown in fig. 4, in at least one alternative implementation of the present embodiment, as shown in fig. 4, the angle a between the extension line in the extension direction of the first clamping bar 1 and the extension line in the extension direction of the second clamping bar 3 is 30-40 degrees, for example, the degree of a is, but not limited to, 30 degrees or 32 degrees or 35 degrees or 38 degrees or 40 degrees.
Preferably, the degree of the angle a between the extension line in the extension direction of the first clamping bar 1 and the extension line in the extension direction of the second clamping bar 3 is 35 degrees.
In addition, in at least one alternative implementation of this embodiment, the included angle between the first clamping bar 1 and the plane in which the arc-shaped body 2 is located, and the included angle between the second clamping bar 3 and the plane in which the arc-shaped body 2 is located are both acute angles. Wherein, the design of acute angle contained angle makes when first clamping lever 1 and second clamping lever 3 are close to each other, and arc body 2 is difficult to take place deformation to the resistance that needs to overcome when having increased first clamping lever 1 and second clamping lever 3 and being close to each other, and then strengthened the body-building effect.
Preferably, the angle b between the first clamping rod 1 and the plane of the arc-shaped body 2 and the angle b between the second clamping rod 3 and the plane of the arc-shaped body 2 are both 40-50 degrees, for example, the angle b is not limited to 40 degrees or 42 degrees or 45 degrees or 48 degrees or 50 degrees.
Still further preferably, the degrees of the included angle b between the first clamping bar 1 and the plane of the arc-shaped body 2 and the included angle b between the second clamping bar 3 and the plane of the arc-shaped body 2 are both 45 degrees.
In addition, referring to fig. 5 to 11, in combination with fig. 2, in at least one alternative implementation of the present embodiment, the barbell bar buckle further includes a locking member 02, where the locking member 02 is used to lock the first clamping bar 1 and the second clamping bar 3 under a condition that the first clamping bar 1 and the second clamping bar 3 are close to each other.
Specifically, referring to FIG. 5, as a first alternative structure of the locker 02, the locker 02 includes a locker body having both ends bent in opposite directions to each other to form a hook shape, and is configured such that one end of the locker body is hooked at a portion where the first clamping bar 1 is connected to the arc-shaped body 2 and the other end is hooked at a portion where the second clamping bar 3 is connected to the arc-shaped body 2, under a condition that the first clamping bar 1 and the second clamping bar 3 are adjacent to each other, to lock the first clamping bar 1 and the second clamping bar 3. Preferably, the locking member 02 is made of, but not limited to, a metal material such as 304 stainless steel to ensure the use strength.
Referring to fig. 6 to 11, as a second alternative structure of the locking member 02, the locking member 02 includes a first buckle 021 and a second buckle 022, and the first buckle 021 and the second buckle 022 include respective buckle bodies, respectively. In the first buckle 021 or the second buckle 022, one end in the length direction of the buckle body is taken as the left end of the buckle body, the other end in the length direction of the buckle body is taken as the right end of the buckle body, the end face of one end in the thickness direction of the buckle body is taken as the front side face 42 of the buckle body, the end face of the other end in the thickness direction of the buckle body is taken as the rear side face 40 of the buckle body, one thickness face of the buckle body is taken as the upper side face 41 of the buckle body, the other thickness face of the buckle body is taken as the lower side face of the buckle body, the left end of the buckle body is bent towards the front side face 42 of the buckle body to form a sleeving part 43, a clamping part 44 protruding towards the front side face 42 of the buckle body is arranged at the right end of the buckle body, the upper side face 41 of the buckle body is inclined downwards from the left end of the buckle body towards the right end of the buckle body, and the clamping part 44 is inclined downwards from the right end of the buckle body towards the left end of the buckle body. Referring to fig. 10 and 11 with emphasis, in conjunction with fig. 2, the first buckle 021 and the second buckle 022 are configured to be capable of being oppositely disposed with the first buckle 021 and the second buckle 022 under the working condition that the first clamping rod 1 and the second clamping rod 3 are close to each other, and the clamping portion 44 of the first buckle 021 and the clamping portion 44 of the second buckle 022 are hooked with each other, the sleeved portion 43 of the first buckle 021 is sleeved on the first clamping rod 1, the sleeved portion 43 of the second buckle 022 is sleeved on the second clamping rod 2, and the first clamping rod 1 and the second clamping rod 2 are locked. The locking piece 02 provided by the alternative embodiment is convenient to use, is butterfly-shaped after being locked, and has attractive appearance.
Further optionally, referring to fig. 7 and 9, in the second alternative structure of the locking member 02, in the first buckle 021 or the second buckle 022, the angle between the upper side 41 of the buckle body and the horizontal plane is c, the degree of c is 14-16 degrees, for example, but not limited to, the degree of c may be 14 degrees, 15 degrees or 16 degrees, preferably, the degree of c is 15 degrees, and/or the clamping portion of the buckle body is inclined along the straight line direction, and the angle between the clamping portion and the horizontal direction is d, and the degree of d is 74-76 degrees. For example, the degree of d may be, but is not limited to, 74 degrees or 75 degrees or 76 degrees, preferably, the degree of d is 75 degrees. Wherein, the 'and/or' means 'in the first buckle 021 or the second buckle 022, the included angle between the upper side surface 41 of the buckle body and the horizontal plane is c, the degree of c is 14-16 degrees', and 'in the first buckle 021 or the second buckle 022, the clamping part of the buckle body is inclined along the straight line direction, and the included angle between the clamping part and the horizontal direction is d, and the degree of d is 74-76 degrees', wherein, only the former is arranged, only the latter is arranged, or both the former and the latter are arranged.
In addition, on the basis of any one of the second optional structures of the locking member 02, further optionally, a non-slip protrusion 45 is provided on the front side surface of the buckle body, so that the non-slip protrusion 45 can be used as a rotation preventing rib for preventing the buckle body from rotating, thereby preventing the buckle body from being misplaced due to rotation when the locking member 02 is sleeved on the clamping rod during locking, and/or a rotating handle 46 is provided at the left end of the buckle body, so as to facilitate the rotation of the buckle body to enable the first buckle 02 and the second buckle 022 to mutually interlace, and lock the first clamping rod 1 and the second clamping rod 2. Wherein. "and/or" means that in both the structure where the stud 45 is provided on the front side of the buckle body and where the turning handle 46 is provided at the left end of the buckle body, only the former is provided, or only the latter is provided, or both the former and the latter are provided.
In addition, on the basis of any one of the second optional structures of the locking member 02, the first buckle and the second buckle are both made of carbon fiber reinforced polyether-ether-ketone composite materials. The polyether-ether-ketone (PEEk) has excellent mechanical, heat-resistant and chemical-resistant properties, low friction coefficient and good bearing engagement, is a good self-lubricating material after Polytetrafluoroethylene (PTFE) and has better bearing capacity and wear resistance than PTFE. On the basis, the addition of the carbon fiber not only enhances the mechanical property of the carbon fiber, but also has important influence on the friction property of the carbon fiber. The tensile strength of the 30% carbon fiber reinforced peek composite material is doubled compared with that of the carbon fiber reinforced peek composite material when the carbon fiber reinforced peek composite material is not reinforced at room temperature, and is tripled at 150 ℃, meanwhile, the impact strength, the bending strength and the modulus of the reinforced composite material are greatly improved, the elongation is sharply reduced, and the thermal deformation temperature can exceed 300 ℃. The impact energy absorption of the composite material directly affects the performance of the composite material when subjected to impact, and carbon fiber reinforced peek composites exhibit specific energy absorption capacities of up to 180 kJ/kg. The reinforcing effect of the carbon fiber can also resist the thermal softening of the peek to a certain extent and form a transfer film with very high strength, and can effectively protect a contact area, so that the friction coefficient and the specific wear rate of the carbon fiber reinforced peek composite material are obviously lower than those of the pure peek. The abrasion resistance of the carbon fiber reinforced peek composite material is obviously better than that of the glass fiber peek composite material, and the abrasion resistance of the carbon fiber to the material is improved by more than 5 times of that of the glass fiber with the same dosage. The carbon fiber reinforced peek composite material is used for manufacturing parts, can effectively avoid the problems that metal or ceramic materials are easy to generate surface cracks and the like, and has excellent tribological properties even exceeding polyethylene with ultra-high molar mass.
It should be understood by those skilled in the art that the above is provided merely as a specific material for manufacturing the locking member 02, and is not limited to the material used for manufacturing the locking member 02, that is, the first buckle 021 and the second buckle 022 of the locking member 02 may be made of other materials, which are not limited to metal materials or nonmetal materials, and materials having elasticity are selected as preferred materials.
Example two
The present embodiment provides a barbell, referring to fig. 12 and 13, in which a barbell bar is mounted with a barbell buckle. Referring to fig. 2, 3 and 4, the barbell buckle includes a clamping spring member 01, wherein the clamping spring member 01 includes a first clamping rod 1, an arc-shaped body 2 and a second clamping rod 3 connected in sequence, the arc-shaped body 2 is made of a metal material, an extending line in the extending direction of the first clamping rod 1 and an extending line in the extending direction of the second clamping rod 3 intersect in a region surrounded by the arc-shaped body 2, and an included angle between the extending line in the extending direction of the first clamping rod 1 and the extending line in the extending direction of the second clamping rod 3 is an acute angle.
In this embodiment, when installing the barbell buckle, the barbell weight may be first installed on the barbell bar, then the arc-shaped body 2 of the barbell buckle is sleeved on the barbell bar and the arc-shaped body 2 is attached to the barbell weight, then the first clamping bar 1 and the second clamping bar 3 of the snap spring 01 are held by hand, so that the first clamping bar 1 and the second clamping bar 3 are close to each other, and then the connecting part of the first clamping bar 1 and the arc-shaped body 2 and the connecting part of the second clamping bar 3 and the arc-shaped body 2 are locked by using a rope or a metal wire and other structural members, so as to fix the first clamping bar 1 and the second clamping bar 3, thereby realizing the fixing function of the barbell weight.
In the structure of the barbell buckle used in this embodiment, since the arc-shaped body 2 is made of a metal material with elasticity, under the working condition that the first clamping rod 1 and the second clamping rod 3 are close to each other, the first clamping rod 1 and the second clamping rod 3 always have a moving trend of being far away from each other, and an included angle after the first clamping rod 1 and the second clamping rod 2 are locked can be flexibly adjusted according to the diameter of the barbell rod, so that the barbell is not easy to fall off after being locked. Through multiple test detection, under the locking state, the locking force value of the clamp spring element 01 on the barbell bar can bear more than 105kg of weight, and is more than twice of the locking force value which can be provided by the barbell buckle in the prior art listed in the embodiment, and the locking state is more reliable; in addition, the barbell buckle used in the embodiment has the beneficial effects of simple structure, convenient manufacture and low processing cost, no matter the barbell buckle is operated to enable the barbell buckle to be in a locking state or a releasing state, the operation process only needs to be operated by a single person, the treatment process is short in time consumption, and the barbell buckle has the beneficial effects of being simple in use mode and convenient to operate.
In addition, the clamping spring piece 01 in the barbell buckle used in the embodiment can be used for human body exercise besides the function of clamping the barbell weight. Specifically, the barbell can only exercise the large arm part of the human arm by lifting or falling back, but cannot exercise the small arm of the human arm. In contrast, in the barbell buckle used in the embodiment, the clamp spring piece 01 can be used for exercising the forearm of the human arm, when the first clamping rod 1 and the second clamping rod 3 are held by hands to enable the first clamping rod 1 and the second clamping rod 3 to be close to each other, muscles on the forearm of the human arm are in a tight state, when the human hand loosens, the first clamping rod 1 and the second clamping rod 3 are separated from each other under the action of the resilience force of the compressed arc-shaped body 2, and therefore the first clamping rod 1 and the second clamping rod 3 return to the initial positions, at the moment, the first clamping rod 1 and the second clamping rod 3 are held again to enable the first clamping rod 1 and the second clamping rod 3 to be close to each other, the purpose of exercising the forearm of the human arm can be achieved through repeated actions, and the nerves and the muscles on the human hand are exercised at the same time.
As an alternative implementation of this embodiment, as shown in fig. 12, in conjunction with fig. 2 and fig. 5 to fig. 11, the barbell buckle used in the barbell further includes a locking member 02, where the locking member 02 is used to lock the first clamping bar 1 and the second clamping bar 3 under the condition that the first clamping bar 1 and the second clamping bar 3 are close to each other.
As shown in fig. 5, 12 and 13, as a first alternative structure in the present alternative embodiment, the locking member 02 includes a locking member body, both ends of which are bent in directions facing each other to form a hook shape, respectively, and is configured such that one end of the locking member body is hooked at a portion where the first clamping bar 1 is connected to the arc-shaped body 2 and the other end is hooked at a portion where the second clamping bar 3 is connected to the arc-shaped body 2, under a condition where the first clamping bar 1 and the second clamping bar 3 are close to each other, to lock the first clamping bar 1 and the second clamping bar 3. Preferably, the locking member 02 is made of, but not limited to, a metal material such as 304 stainless steel to ensure the use strength.
Referring to fig. 6 to 11, as a first alternative structure under the present alternative embodiment, the locking member 02 has a second alternative structure, the locking member 02 includes a first buckle 021 and a second buckle 022, and the first buckle 021 and the second buckle 022 include respective buckle bodies, respectively. In the first buckle 021 or the second buckle 022, one end in the length direction of the buckle body is taken as the left end of the buckle body, the other end in the length direction of the buckle body is taken as the right end of the buckle body, the end face of one end in the thickness direction of the buckle body is taken as the front side face 42 of the buckle body, the end face of the other end in the thickness direction of the buckle body is taken as the rear side face 40 of the buckle body, one thickness face of the buckle body is taken as the upper side face 41 of the buckle body, the other thickness face of the buckle body is taken as the lower side face of the buckle body, the left end of the buckle body is bent towards the front side face 42 of the buckle body to form a sleeving part 43, a clamping part 44 protruding towards the front side face 42 of the buckle body is arranged at the right end of the buckle body, the upper side face 41 of the buckle body is inclined downwards from the left end of the buckle body towards the right end of the buckle body, and the clamping part 44 is inclined downwards from the right end of the buckle body towards the left end of the buckle body. Referring to fig. 10 and 11 with emphasis, in conjunction with fig. 2, the first buckle 021 and the second buckle 022 are configured to be capable of being oppositely disposed with the first buckle 021 and the second buckle 022 under the working condition that the first clamping rod 1 and the second clamping rod 3 are close to each other, and the clamping portion 44 of the first buckle 021 and the clamping portion 44 of the second buckle 022 are hooked with each other, the sleeved portion 43 of the first buckle 021 is sleeved on the first clamping rod 1, the sleeved portion 43 of the second buckle 022 is sleeved on the second clamping rod 2, and the first clamping rod 1 and the second clamping rod 2 are locked. The locking piece 02 provided by the alternative embodiment is convenient to use, is butterfly-shaped after being locked, and has attractive appearance.
Further optionally, referring to fig. 7 and 9, in the second alternative structure of the locking member 02, in the first buckle 021 or the second buckle 022, the angle between the upper side 41 of the buckle body and the horizontal plane is c, the degree of c is 14-16 degrees, for example, but not limited to, the degree of c may be 14 degrees, 15 degrees or 16 degrees, preferably, the degree of c is 15 degrees, and/or the clamping portion of the buckle body is inclined along the straight line direction, and the angle between the clamping portion and the horizontal direction is d, and the degree of d is 74-76 degrees. For example, the degree of d may be, but is not limited to, 74 degrees or 75 degrees or 76 degrees, preferably, the degree of d is 75 degrees. Wherein, the 'and/or' means 'in the first buckle 021 or the second buckle 022, the included angle between the upper side surface 41 of the buckle body and the horizontal plane is c, the degree of c is 14-16 degrees', and 'in the first buckle 021 or the second buckle 022, the clamping part of the buckle body is inclined along the straight line direction, and the included angle between the clamping part and the horizontal direction is d, and the degree of d is 74-76 degrees', wherein, only the former is arranged, only the latter is arranged, or both the former and the latter are arranged.
In addition, on the basis of any one of the second optional structures of the locking member 02, further optionally, a non-slip protrusion 45 is provided on the front side surface of the buckle body, so that the non-slip protrusion 45 can be used as a rotation preventing rib for preventing the buckle body from rotating, thereby preventing the buckle body from being misplaced due to rotation when the locking member 02 is sleeved on the clamping rod during locking, and/or a rotating handle 46 is provided at the left end of the buckle body, so as to facilitate the rotation of the buckle body to enable the first buckle 02 and the second buckle 022 to mutually interlace, and lock the first clamping rod 1 and the second clamping rod 2. Wherein. "and/or" means that in both the structure where the stud 45 is provided on the front side of the buckle body and where the turning handle 46 is provided at the left end of the buckle body, only the former is provided, or only the latter is provided, or both the former and the latter are provided.
In addition, on the basis of any one of the second optional structures of the locking member 02, the first buckle and the second buckle are both made of carbon fiber reinforced polyether-ether-ketone composite materials. The polyether-ether-ketone (PEEk) has excellent mechanical, heat-resistant and chemical-resistant properties, low friction coefficient and good bearing engagement, is a good self-lubricating material after Polytetrafluoroethylene (PTFE) and has better bearing capacity and wear resistance than PTFE. On the basis, the addition of the carbon fiber not only enhances the mechanical property of the carbon fiber, but also has important influence on the friction property of the carbon fiber. The tensile strength of the 30% carbon fiber reinforced peek composite material is doubled compared with that of the carbon fiber reinforced peek composite material when the carbon fiber reinforced peek composite material is not reinforced at room temperature, and is tripled at 150 ℃, meanwhile, the impact strength, the bending strength and the modulus of the reinforced composite material are greatly improved, the elongation is sharply reduced, and the thermal deformation temperature can exceed 300 ℃. The impact energy absorption of the composite material directly affects the performance of the composite material when subjected to impact, and carbon fiber reinforced peek composites exhibit specific energy absorption capacities of up to 180 kJ/kg. The reinforcing effect of the carbon fiber can also resist the thermal softening of the peek to a certain extent and form a transfer film with very high strength, and can effectively protect a contact area, so that the friction coefficient and the specific wear rate of the carbon fiber reinforced peek composite material are obviously lower than those of the pure peek. The abrasion resistance of the carbon fiber reinforced peek composite material is obviously better than that of the glass fiber peek composite material, and the abrasion resistance of the carbon fiber to the material is improved by more than 5 times of that of the glass fiber with the same dosage. The carbon fiber reinforced peek composite material is used for manufacturing parts, can effectively avoid the problems that metal or ceramic materials are easy to generate surface cracks and the like, and has excellent tribological properties even exceeding polyethylene with ultra-high molar mass.
It should be understood by those skilled in the art that the above is provided merely as a specific material for manufacturing the locking member 02, and is not limited to the material used for manufacturing the locking member 02, that is, the first buckle 021 and the second buckle 022 of the locking member 02 may be made of other materials, which are not limited to metal materials or nonmetal materials, and materials having elasticity are selected as preferred materials.
In addition, the barbell buckle and the barbell provided by the embodiment of the invention can be formed by combining various structures of the embodiment, and the effects can be exerted.
It should be noted that the above embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present invention.
Claims (12)
1. The barbell buckle is characterized by comprising a clamping spring piece;
The clamping spring piece comprises a first clamping rod, an arc-shaped body and a second clamping rod which are sequentially connected, wherein the arc-shaped body is made of a metal material;
The extending line in the extending direction of the first clamping rod and the extending line in the extending direction of the second clamping rod intersect in the area surrounded by the arc-shaped body, and an included angle between the extending line in the extending direction of the first clamping rod and the extending line in the extending direction of the second clamping rod is an acute angle;
The barbell buckle further comprises a locking piece, wherein the locking piece is used for locking the first clamping rod and the second clamping rod under the working condition that the first clamping rod and the second clamping rod are close to each other;
the locking piece comprises a first buckle and a second buckle, and the first buckle and the second buckle respectively comprise respective buckle bodies;
In the first buckle or the second buckle, one end in the length direction of the buckle body is taken as the left end of the buckle body, the other end in the length direction of the buckle body is taken as the right end of the buckle body, the end face of one end in the thickness direction of the buckle body is taken as the front side face of the buckle body, the end face of the other end in the thickness direction of the buckle body is taken as the rear side face of the buckle body, one thickness face of the buckle body is taken as the upper side face of the buckle body, and the other thickness face of the buckle body is taken as the lower side face of the buckle body;
The left end of the buckle body is bent towards the front side surface of the buckle body to form a sleeving part, the right end of the buckle body is provided with a clamping part protruding towards the front side surface of the buckle body, the upper side surface of the buckle body is inclined downwards obliquely from the left end of the buckle body towards the right end of the buckle body, and the clamping part is inclined downwards obliquely from the right end of the buckle body towards the left end of the buckle body;
The first buckle and the second buckle are configured to be capable of being oppositely arranged under the working condition that the first clamping rod and the second clamping rod are close to each other, the clamping part of the first buckle and the clamping part of the second buckle are mutually hooked and clamped, the sleeved part of the first buckle is sleeved on the first clamping rod, the sleeved part of the second buckle is sleeved on the second clamping rod, and the first clamping rod and the second clamping rod are locked.
2. The barbell clasp of claim 1, wherein the first clamping bar, the arc-shaped body and the second clamping bar are all made of metal material, and the first clamping bar, the arc-shaped body and the second clamping bar are sequentially connected to form an integrated structure.
3. The barbell clasp of claim 1 or 2, wherein the metallic material comprises spring steel.
4. The barbell clasp according to claim 2, wherein the outer part of the first clamping bar and the outer part of the second clamping bar are coated with a protective sleeve made of an elastic material, and/or the outer part of the arc-shaped body is coated with a protective sleeve made of an elastic material.
5. The barbell clasp of claim 1, wherein a protective sleeve made of elastic material is wrapped around the exterior of the arcuate body.
6. The barbell clasp of claim 4 or 5, wherein the protective sheath is made of rubber, the rubber comprising rare earth butadiene rubber.
7. The barbell clasp of claim 1, wherein the first clamping bar and the second clamping bar are made of rubber, one end of the arc-shaped body is injection molded in the first clamping bar, and the other end of the arc-shaped body is injection molded in the second clamping bar;
And/or the included angle between the first clamping rod and the plane where the arc-shaped body is located and the included angle between the second clamping rod and the plane where the arc-shaped body is located are acute angles.
8. The barbell buckle according to claim 1, wherein the locking member comprises a locking member body, wherein two ends of the locking member body are respectively bent towards the mutually facing directions to form a hook shape, and the barbell buckle is configured such that one end of the locking member body is hooked at a position where the first clamping rod is connected with the arc-shaped body, and the other end is hooked at a position where the second clamping rod is connected with the arc-shaped body under the working condition that the first clamping rod and the second clamping rod are mutually close to each other, so as to lock the first clamping rod and the second clamping rod.
9. The barbell buckle according to claim 1, wherein in the first buckle or the second buckle, an included angle between the upper side surface of the buckle body and a horizontal plane is 14-16 degrees, and/or the clamping portion of the buckle body is inclined in a straight line direction, and an included angle between the clamping portion and a horizontal direction is 74-76 degrees.
10. The barbell clasp according to claim 9, wherein a non-slip protrusion is provided on the front side of the clasp body and/or a turning handle is provided on the left end of the clasp body.
11. The barbell clasp of claim 9, wherein the first clasp and the second clasp are each made of carbon fiber reinforced polyetheretherketone composite.
12. A barbell, characterized in that a barbell clip according to any of claims 1 to 11 is mounted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019109540417 | 2019-10-09 | ||
| CN201910954041.7A CN110538421A (en) | 2019-10-09 | 2019-10-09 | Barbell Buckles and Barbells |
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| Publication Number | Publication Date |
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| CN111054020A CN111054020A (en) | 2020-04-24 |
| CN111054020B true CN111054020B (en) | 2024-12-24 |
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| CN201910954041.7A Withdrawn CN110538421A (en) | 2019-10-09 | 2019-10-09 | Barbell Buckles and Barbells |
| CN202010066369.8A Active CN111054020B (en) | 2019-10-09 | 2020-01-20 | Barbell clips and barbell |
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| CN201910954041.7A Withdrawn CN110538421A (en) | 2019-10-09 | 2019-10-09 | Barbell Buckles and Barbells |
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| CN114832290B (en) * | 2022-05-30 | 2023-08-18 | 青岛健动体育用品有限公司 | Barbell buckle and barbell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202516220U (en) * | 2012-04-01 | 2012-11-07 | 黄慎言 | Self-locking quick release chuck for dumbbell and lever |
| CN208274936U (en) * | 2018-05-19 | 2018-12-25 | 河北斯瑞特健身器材有限公司 | A kind of upper cant chest training aids |
| CN212439856U (en) * | 2019-10-09 | 2021-02-02 | 青岛健动体育用品有限公司 | Barbell Clips and Barbells |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7674214B2 (en) * | 2007-10-01 | 2010-03-09 | David Marethouse | Barbell handles |
| CN207073662U (en) * | 2017-07-19 | 2018-03-06 | 北京汽车研究总院有限公司 | Yoke configurations |
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2019
- 2019-10-09 CN CN201910954041.7A patent/CN110538421A/en not_active Withdrawn
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2020
- 2020-01-20 CN CN202010066369.8A patent/CN111054020B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202516220U (en) * | 2012-04-01 | 2012-11-07 | 黄慎言 | Self-locking quick release chuck for dumbbell and lever |
| CN208274936U (en) * | 2018-05-19 | 2018-12-25 | 河北斯瑞特健身器材有限公司 | A kind of upper cant chest training aids |
| CN212439856U (en) * | 2019-10-09 | 2021-02-02 | 青岛健动体育用品有限公司 | Barbell Clips and Barbells |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111054020A (en) | 2020-04-24 |
| CN110538421A (en) | 2019-12-06 |
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Effective date of registration: 20200623 Address after: 266200 No.2 Park Road, wangjiajie village, Pudong Town, Jimo District, Qingdao City, Shandong Province Applicant after: Qingdao Jiandong sporting goods Co.,Ltd. Applicant after: Han Tao Address before: 266200 No.2 Park Road, wangjiajie village, Pudong Town, Jimo District, Qingdao City, Shandong Province Applicant before: Qingdao Jiandong sporting goods Co.,Ltd. |
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