CN108354385B

CN108354385B - Upper base, lower base, fence connector and fence system

Info

Publication number: CN108354385B
Application number: CN201810440105.7A
Authority: CN
Inventors: 金亚军
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-09
Filing date: 2018-05-09
Publication date: 2024-10-11
Anticipated expiration: 2038-05-09
Also published as: CN108354385A

Abstract

The invention provides a fence system, relates to the technical field of fences, and solves the technical problem that in the prior art, a framework is easy to deform due to touching caused by the fact that a three-way joint cannot lock the relative positions of a transverse rod and a vertical rod, and potential safety hazards are caused, and the fence system comprises at least two fence boards and fence connectors, wherein: fence shafts are arranged at the upper end and the lower end of the two sides of the fence plate; the fence connector is provided with an upper base comprising a locking device and a lower base comprising a telescopic device and wheels, and at least two fence plates are sequentially connected end to end through the mutual matching of the upper base and the lower base; the upper base and the lower base synchronously rotate about the fence shaft; the locking device can lock the relative position of the fence shaft in the use process, the telescopic device can push out and retract the wheels, the shape is various when the locking device is opened, the locked fence plate is not easy to deform, the fence protection effect is obvious, and the movable storage is convenient.

Description

Upper base, lower base, fence connector and fence system

Technical Field

The invention relates to the technical field of fences, in particular to an upper base, a lower base, a fence connector and a fence system.

Background

At present, more parents are busy and free to watch children at the same time, so that the child safety accidents caused by the parents frequently occur, therefore, a child fence capable of providing a safety space for the children is more popular, and the use of the child fence is affected because the relative positions of the fence boards cannot be locked in the process of connecting the fence boards of the common child fences on the market nowadays.

The utility model discloses a children's rail, including the frame on both sides about, connecting rod, rail cloth and rail lock, the frame that this children's rail adopted is formed through rotatable three way connection, and folding of children's rail can be realized to this structure, but can't lock because of its three way connection's rotation angle to make this children's rail warp because of three way connection's rotation easily in the use, cause the potential safety hazard.

The present inventors found that there are at least the following technical problems in the prior art:

1. the tee joint can rotate, in the use, is touched and easily causes the deformation of children's rail to cause the potential safety hazard.

2. The three-way joint is affected by its own structure, the shape of the device is single in an open state, and the application range of the device is seriously influenced.

Disclosure of Invention

One of the purposes of the invention is to provide an upper base to solve the technical problem that the frame is easy to deform because the relative positions of the transverse rod and the longitudinal rod cannot be locked in the prior art; the preferred technical solutions provided by the invention have a plurality of technical effects (the alternative button device is convenient to operate, the locking function of the locking device is obvious, the double-layer gear and the internal teeth in the second through hole can be automatically adjusted and meshed, etc.), and the technical effects are described in detail below.

In order to achieve the above purpose, the present invention provides the following technical solutions:

The invention provides an upper base, which comprises an upper base upper shell, a locking device and an upper base lower shell, wherein: the upper base upper shell is covered on the upper base lower shell, a first cavity is formed in the upper base upper shell, and the locking device is arranged in the first cavity; the bottom surface of the lower shell of the upper base is provided with two first through holes, and the first through holes are used for installing the upper end of the fence shaft; the locking device is used for locking the rotation angle of the fence shaft relative to the first through hole.

Preferably, an alternating button arrangement is also included, wherein: the alternating button device is arranged in the first cavity, the upper end of the alternating button device penetrates through the upper base upper shell, and the lower end of the alternating button device abuts against the locking device; the alternating button device controls the locking and unlocking of the locking device by pressing to limit the relative position of the locking device.

Preferably, the locking device comprises a locking clamping plate, a second spring, a first transition wheel and two locking sleeves, wherein: the upper end face of the locking clamping plate is propped against the alternating button device, the lower end face of the locking clamping plate is propped against the second spring, two second through holes are formed in the locking clamping plate, and inner teeth are arranged on the inner wall of each second through hole in a surrounding mode; the second spring is arranged on the upper base lower shell; the upper end of the locking sleeve penetrates through the second through hole, the lower end of the locking sleeve is provided with a double-layer gear, and when the relative position of the fence shaft is locked, the lower-layer gear of the double-layer gear is meshed with inner teeth in the second through hole; the top surface of the locking sleeve is provided with a third through hole, the first through hole and the third through hole form a first channel for inserting the upper end of the fence shaft, and the locking sleeve and the fence shaft synchronously rotate; the first transition wheel is arranged between the two locking sleeves, the first transition wheel is respectively meshed with the lower gears of the two double-layer gears, and the first transition wheel is arranged on the upper base lower shell.

Preferably, the tooth surfaces at the lower ends of the inner teeth of the second through holes are inclined surfaces, the tooth surfaces of the upper layer gear of the double-layer gear are propped against the inclined surfaces at the lower ends of the inner teeth of the second through holes, and the upper layer gear and the lower layer gear of the double-layer gear can be meshed with the inner teeth of the second through holes so as to ensure that the lower layer gear of the double-layer gear is smoothly meshed with the inner teeth when the relative position of the fence shaft is locked.

The upper base provided by the embodiment of the invention has the beneficial effects that:

According to the upper base provided by the invention, the first through hole is used for installing the upper end of the fence shaft, and the fence shaft is fixed and fastened, so that the upper base is not easy to deform; the locking device is used for locking the relative rotation angle of the fence shaft, can lock the relative position of the upper base relative to the fence shaft, and has simple locking operation and remarkable locking effect.

Another object of the present invention is to provide a lower base, so as to solve the technical problem that the rail in the prior art is not easy to move or is laborious to move, and the technical effects (the telescopic device can control the telescopic operation of the wheels, the telescopic operation of the wheels is convenient and fast, and the rotation angle of the lower base about the rail shaft) can be achieved by the preferred technical solutions provided in the present invention are described in detail below.

The invention provides a lower base, which comprises a lower base upper shell, a telescopic device, wheels and a lower base lower shell, wherein: the lower base upper shell is covered on the lower base lower shell, a second cavity is formed in the lower base upper shell, and the telescopic device is connected with the wheels and is arranged in the second cavity; two fourth through holes are formed in the top surface of the upper shell of the lower base; the fourth through hole is used for installing the lower end of the fence shaft; the telescopic device is used for controlling the extension and retraction of the wheels.

Preferably, the telescopic device comprises two telescopic sleeves, a third spring, a mounting plate, a second transition wheel and a telescopic plate, wherein: the mounting plate is fixedly arranged in the second cavity, and two sixth through holes are formed in the mounting plate; the telescopic sleeve sequentially passes through the sixth through hole and the telescopic plate and then is connected with the third spring, and the telescopic sleeve can rotate in the sixth through hole; the top surfaces of the two telescopic sleeves are respectively provided with an opening, the openings and the fourth through holes form a second channel for installing the lower end of the fence shaft, and the telescopic sleeves and the fence shaft synchronously rotate; the second transition wheel is arranged on the mounting plate and positioned between the two telescopic sleeves, external teeth are arranged on the outer wall of the upper part of each telescopic sleeve, and the second transition wheel is meshed with the external teeth of the two telescopic sleeves respectively; the upper end of the third spring is sleeved on the lower part of the telescopic sleeve and props against the bottom surface of the telescopic plate, the lower end of the third spring props against the lower base lower shell, and the third spring is used for pushing out and pulling back the telescopic plate; the lower terminal surface of expansion plate is provided with the wheel and places the storehouse, be provided with the fifth through-hole on the lower casing of lower base, a portion of wheel sets up in the wheel places the storehouse, the wheel can be passed through the upper and lower flexible edge of expansion plate the fifth through-hole stretches out and withdraws.

Preferably, be provided with the slider on the outer wall of telescopic tube, be provided with annular slide rail on the expansion plate, wherein: the sliding block is arranged on the lower side of the external teeth of the telescopic sleeve, is arranged in the annular sliding rail and can slide in the annular sliding rail; the bottom of the annular sliding rail is wound around to form wavy fluctuation, and the expansion plate can expand and contract up and down along with the sliding of the sliding block.

Preferably, the upper part of the telescopic sleeve is provided with a second alternating button device and a second locking clamp plate, wherein: the second alternate button device is arranged in the second cavity, the upper end of the second alternate button device passes through the lower base upper shell, and the lower end of the second alternate button device is propped against the second locking clamping plate; the second locking splint is provided with two seventh through holes, the inside of seventh through hole encircles a week and is provided with the internal tooth, locking sleeve's external tooth is double-deck tooth, the internal tooth in the seventh through hole is equipped with the inclined plane, double-deck tooth's upper tooth with the internal tooth in the seventh through hole offsets, when locking the rotation angle of rail axle, double-deck tooth's lower floor tooth with the internal tooth in the seventh through hole meshes.

The lower base provided by the embodiment of the invention has the beneficial effects that:

according to the lower base provided by the invention, the fourth through hole is used for installing the lower end of the fence shaft, and the fence shaft is installed and fastened and is not easy to deform; the telescopic device can control the extension and retraction of the wheels, and is simple to operate and convenient to move.

Another object of the present invention is to provide a fence connector, which solves the technical problem that the frame in the prior art is easy to deform, and the preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects, which are described in detail below.

the upper base and the lower base are used for installing a fence shaft; the upper base and the lower base can synchronously rotate about the fence shaft.

The fence connector provided by the embodiment of the invention has the beneficial effects that:

The upper base and the lower base are matched with each other, and the rail shaft is more stable and is not easy to deform while being installed and fastened; the upper base and the lower base can synchronously rotate relative to the fence shaft, and the fence is convenient and fast to operate in the folding and unfolding processes.

Another object of the present invention is to provide a fence system, which solves the technical problem that the frame in the prior art is easy to deform when touched, and the preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects, which are described in detail below.

The invention provides a fence system, comprising at least two fence boards and at least one set of fence connectors, wherein: fence shafts are arranged at the upper end and the lower end of the two sides of the fence plate; the upper fence shafts of the two fence plates are connected through the upper base; the lower end fence shafts of the two fence plates are connected through the lower base.

The fence system provided by the embodiment of the invention has the beneficial effects that:

The fence board is connected with the lower base through the upper base and the fence system formed by the mutual matching, is not easy to deform after being locked by relative rotation angle, is safe and reliable, can be folded and moved, and is convenient to carry and store.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the rail connector of the present invention;

FIG. 2 is an exploded assembly view of the upper base of the present invention;

FIG. 3 is an exploded assembly view of the lower base of the present invention;

FIG. 4 is an exploded assembly view of a second alternate button assembly and a second latch cleat of a sub-mount of another embodiment of the present invention;

fig. 5 is a schematic view showing the folding state structure of the fence of the present invention;

fig. 6 is a schematic view of the opened state structure of the fence of the present invention;

FIG. 7 is a first fence panel component of this invention;

FIG. 8 is a view of a second fence panel assembly of this invention.

Reference numerals: 1-an upper base; 11-an alternating button device; 111-buttons; 112-a turntable; 113-ejector pins; 114-a first spring; 12-an upper base upper housing; 13-a locking device; 131-locking clamp plate; 1311-a second via; 132—a first transition wheel; 133-a second spring; 134-locking sleeve; 1341-double layer gear; 1342-third via; 14-an upper base lower housing; 141-a first through hole; 2-a lower base; 21-a lower base upper housing; 211-fourth through holes; 22-telescoping device; 221-a telescoping sleeve; 2211-opening holes; 222-a third spring; 223-a second transition wheel; 224-a mounting plate; 2241-sixth through holes; 225-expansion plates; 2251-annular slide rail; 2252-wheel placement bin; 23-wheels; 24-an upper base lower housing; 241-fifth through holes; 25-a second alternate button means; 251-a second button; 252-a second turntable; 253—a second ejector pin; 254-fourth spring; 26-a second locking cleat; 261-seventh through hole; 3-a first fence panel; 4-a second fence panel; 5-fence shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims. The invention provides an upper base, which comprises an upper base upper shell 12, a locking device 13 and an upper base lower shell 14, wherein: the upper base upper shell 12 covers the upper base lower shell 14, a first cavity is formed in the upper base upper shell, and the locking device 13 is arranged in the first cavity; the bottom surface of the upper base lower shell 14 is provided with two first through holes 141, and the first through holes 141 are used for installing the upper end of the fence shaft; the locking means 13 is used to lock the rotation angle of the rail shaft with respect to the first through hole 141.

When in use, the upper ends of two adjacent fence shafts are respectively arranged in the two first through holes 141 of the same upper base, and after a proper rotation angle is selected, the upper base is locked to a proper position through the locking device 13; the fence shaft connected through the upper base is firmly installed without shaking, and the relative rotation position of the upper base and the fence shaft can be locked at any angle, so that the fence shaft is firmly locked and is not easy to deform.

As an alternative embodiment, an alternating button device 11 is also included, wherein: the alternating button device 11 is arranged in the first cavity, the upper end of the alternating button device 11 passes through the upper base upper shell 12, and the lower end of the alternating button device 11 is propped against the locking device 13; the alternating button means 11 controls the locking and unlocking of the locking means 13 by pressing a button which defines the relative position of the locking means 13.

As an alternative embodiment, the alternating button device 11 includes a button 111, a turntable 112, a push rod 113 and a first spring 114, where the button 111, the turntable 112 and the push rod 113 are sequentially connected, a positioning column is disposed on a top surface of the locking clamping plate 131, one end of the first spring 114 is sleeved on the positioning column, and the other end of the first spring 114 abuts against the push rod 113; the upper base upper shell 12 is provided with a button mounting hole, the inner wall of the button mounting hole is provided with a groove, the outer wall of the turntable 112 is provided with a first protrusion, the outer wall of the push rod 113 is provided with a second protrusion, the inside of the button 111 is provided with a jack post, when the locking device 13 is unlocked, the first protrusion is arranged in the groove, the jack post is separated from the push rod 113, the locking clamping plate 131 is at an upper limit position, when the button 111 is pressed for the first time, the jack post pushes the push rod 113 to slide downwards so as to push the locking clamping plate 131 to slide downwards through the first spring 114, at this time, the turntable 112 rotates, when the first protrusion is separated from the groove and is clamped with the second protrusion, the locking clamping plate 131 is at a lower limit position, the push rod 111 is continuously pressed, the first protrusion and the second protrusion are separated under the action of the first spring 114, and the first protrusion returns to the groove; the alternate button device 11 can locate the locking clamping plate 131 to an upper limit position and a lower limit position by pressing operation alternately, thereby completing locking and opening of the locking device 13, and has simple structure, convenient operation and remarkable effect.

As an alternative embodiment, the locking device 13 comprises a locking clamping plate 131, a second spring 133, a first transition wheel 132 and two locking sleeves 134, wherein: the upper end surface of the locking clamping plate 131 abuts against the alternating button device 11, the lower end surface abuts against the second spring 133, two second through holes 1311 are formed in the locking clamping plate 131, and inner teeth are formed around the inner wall of the second through holes 1311; the second spring 133 is disposed on the upper base lower housing 14; the upper end of the locking sleeve 134 passes through the second through hole 1311, a double-layer gear 1341 is arranged at the lower end of the locking sleeve 134, and when the relative position of the fence shaft is locked, the lower-layer gear of the double-layer gear 1341 is meshed with the internal teeth in the second through hole 1311; a third through hole 1342 is formed on the top surface of the locking sleeve 134, the first through hole 141 and the third through hole 1342 form a first channel for the upper end of the rail shaft to be inserted, and the locking sleeve 134 rotates synchronously with the rail shaft; the first transition wheels 132 are disposed between the two locking sleeves 134, the first transition wheels 132 are respectively meshed with the lower gears of the two double-layer gears 1341, the first transition wheels 132 are disposed on the upper base lower housing 14, the number of the first transition wheels 132 is two, the transmission ratios of the two first transition wheels 132 are the same, and the two locking sleeves 134 rotate in opposite directions under the action of the two first transition wheels 132, so that the adjacent two fence shafts are more labor-saving and more convenient in the operation process of opening or folding.

As an alternative embodiment, the tooth surfaces at the lower ends of the inner teeth of the second through hole 1311 are all inclined surfaces, the tooth surfaces of the upper gear of the double-layer gear 1341 are abutted against the inclined surfaces at the lower ends of the inner teeth of the second through hole 1311, and the upper gear and the lower gear of the double-layer gear 1341 can be meshed with the inner teeth of the second through hole 1311 so as to ensure that the lower gear of the double-layer gear 1341 is smoothly meshed with the inner teeth when the relative position of the fence shaft is locked; the tooth end of the upper layer gear teeth of the double-layer gear 1341 is provided with an arc surface or an inclined surface, in the unlocked state of the locking device 13, the tooth end of the upper layer gear abuts against the inclined surface of the lower end of the inner tooth of the second through hole 1311, in the process of entering the locked state, the tooth end of the upper layer gear teeth of the double-layer gear 1341 and the inner tooth of the second through hole 1311 are automatically adjusted, smooth engagement of the lower layer gear of the double-layer gear 1341 and the inner tooth of the second through hole 1311 in the locking operation is always ensured, and touch abrasion generated in the inter-gear engagement process is effectively reduced.

The invention provides a lower base, which comprises a lower base upper shell 21, a telescopic device 22, wheels 23 and a lower base lower shell 24, wherein: the lower base upper shell 21 covers the lower base lower shell 24, a second cavity is formed in the lower base upper shell, and the telescopic device 22 is connected with the wheels 23 and is arranged in the second cavity; two fourth through holes 211 are formed in the top surface of the lower base upper shell 21; the fourth through hole 211 is used for installing the lower end of the fence shaft; the telescopic means 22 are used to control the extension and retraction of the wheels 23.

When in use, the lower ends of two adjacent fence shafts are respectively arranged on the two fourth through holes 211 of the same lower base, the telescopic device 22 controls the wheels 23 to retract into the second cavity in the state that the fence shafts are completely opened, the lower base is prevented from sliding, and when the lower base needs to move, the telescopic device 22 controls the wheels 23 to extend out; the rail shaft is connected through the lower base, the mounting is fastened and does not shake, the telescopic device 22 can control the retraction and extension of the wheels 23, and the rail shaft is convenient to move and store and convenient to carry.

As an alternative embodiment, the telescopic device 22 comprises two telescopic sleeves 221, a third spring 222, a mounting plate 224, a second transition wheel 223 and a telescopic plate 225, wherein: the mounting plate 224 is fixedly arranged in the second cavity, and the mounting plate 224 is provided with two sixth through holes 2241; the telescopic sleeve 221 is connected with the third spring 222 after passing through the sixth through hole 2241 and the telescopic plate 225 in sequence, and the telescopic sleeve 221 can rotate in the sixth through hole 2241; an opening 2211 is formed on the top surface of each of the two telescopic sleeves 221, the opening 2211 and the fourth through hole 211 form a second channel for installing the lower end of the rail shaft, and the telescopic sleeves 221 rotate synchronously with the rail shaft; the second transition wheel 223 is arranged on the mounting plate 224 and is positioned between the two telescopic sleeves 221, external teeth are arranged on the outer wall of the upper part of the telescopic sleeve 221, and the second transition wheel 223 is respectively meshed with the external teeth of the two telescopic sleeves 221; the upper end of the third spring 222 is sleeved on the lower part of the telescopic sleeve 221 and abuts against the bottom surface of the telescopic plate 225, the lower end of the third spring 222 abuts against the lower base lower shell 24, and the third spring 222 is used for pushing out and pulling back the telescopic plate 225; the lower end surface of the expansion plate 225 is provided with a wheel placing cabin 2252, the lower base lower shell 24 is provided with a fifth through hole 241, a part of the wheel 23 is arranged in the wheel placing cabin 2252, and the wheel 23 can extend and retract along the fifth through hole 241 through the up-and-down expansion of the expansion plate 225.

As an alternative embodiment, a sliding block is disposed on an outer wall of the telescopic sleeve 221, and an annular sliding rail 2251 is disposed on the telescopic plate 225, wherein: the sliding block is arranged at the lower side of the external teeth of the telescopic sleeve 221, the sliding block is arranged in the annular sliding rail 2251, and the sliding block can slide in the annular sliding rail 2251; the bottom of the annular sliding rail 2251 forms wavy fluctuation around a circle, and the expansion plate 225 can expand and contract up and down along with the sliding of the sliding block; when the folding type multifunctional combined rail is used, the lower base is arranged at the lower end of the rail shaft, when the rail shaft is completely opened, the sliding block is arranged at the lowest point of the wavy annular sliding rail 2251, the wheels 23 are completely contained in the wheel containing bin 2252, the lower base is stably contained, when the adjacent rail shaft is folded, and the folding angle exceeds 90 degrees, the wheels 23 gradually extend along with the increase of the folding angle, and when the rail shaft is completely folded, the sliding block is positioned at the highest point of the wavy annular sliding rail 2251, and the wheels 23 are completely pushed out and are convenient to move.

As an alternative embodiment, the wheels 23 are steel balls, a part of the steel balls are placed in the wheel placing chamber 2252, and as the sliding block slides in the annular sliding rail 2251, the expansion plate 225 slides up and down, so that the wheel placing chamber 2252 arranged below the expansion plate 225 slides up and down, the steel balls are driven to extend and retract from the fifth through hole 241, and the steel balls can roll in the wheel placing chamber 2252; simple structure and obvious effect.

As an alternative embodiment, the upper part of the telescopic sleeve 221 is provided with a second alternating button device 25 and a second locking clamp 26, wherein: the second alternative button device 25 is disposed in the second cavity, the upper end of the second alternative button device 25 passes through the lower base upper housing 24, and the lower end of the second alternative button device 25 abuts against the second locking clamping plate 26; the second locking clamping plate 26 is provided with two seventh through holes 261, inner teeth are circumferentially arranged in the seventh through holes 261, outer teeth of the locking sleeve 221 are double-layer teeth, inner teeth in the seventh through holes 261 are provided with inclined planes, upper-layer teeth of the double-layer teeth are abutted against inner teeth in the seventh through holes 261, and when the rotation angle of the fence shaft is locked, lower-layer teeth of the double-layer teeth are meshed with inner teeth in the seventh through holes 261; the lower base is convenient to move and carry, and can lock the rotation angle of the fence shaft.

The invention provides a fence connector, which comprises an upper base 1 and a lower base 2, wherein the upper base 1 and the lower base 2 are used for installing fence shafts; the upper base 1 and the lower base 2 can synchronously rotate about the fence shaft.

When the fence is used, the upper base 1 and the lower base 2 are mutually matched and respectively installed at the upper end and the lower end of the fence shaft, so that the fence shaft is more stable under the premise of being fastened in installation, and the upper base 1 and the lower base 2 can synchronously rotate relative to the fence shaft, so that two adjacent fence shafts connected through the fence connector are more convenient and quicker in the process of opening and folding.

The invention provides a fence system comprising at least two fence panels and at least one set of said fence connectors, wherein: fence shafts 5 are arranged at the upper end and the lower end of the two sides of the fence plate; the upper fence shafts of the two fence boards are connected through the upper base 1; the lower fence shafts of the two fence boards are connected through the lower base 2.

When the novel fence is used, the fence plates are connected end to end in sequence under the action of the fence connector and form a fence, the fence plates can be enclosed into different shapes according to different requirements, after the relative positions are locked, the shapes of the fence plates are not easy to deform, and the novel fence is convenient to move and carry when being folded.

As an alternative embodiment, the cross-sectional shape of the rail shaft 5 is polygonal, and the shape of the third through hole 1342 is matched with the shape of the rail shaft 5; the shape of the opening 2211 is matched with the shape of the fence shaft 5, and the locking sleeve 134, the fence shaft 5 and the telescopic sleeve 221 always rotate synchronously; preferably, the cross-sectional shape of the fence shaft 5 is octagonal; the fence system is more convenient and quick in the process of opening or folding, the fence shaft 5 is prevented from sliding in the process of rotating, and the operation is more stable and effective.

As an alternative embodiment, the fence panel comprises a first fence panel 3 and a second fence panel 4, the first fence panel 3 being provided with a handle for carrying after folding and a door for ingress and egress.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an upper base, its characterized in that includes upper base upper housing (12), locking means (13) and upper base lower housing (14), wherein:

the upper base upper shell (12) is covered on the upper base lower shell (14), a first cavity is formed in the upper base upper shell, and the locking device (13) is arranged in the first cavity;

Two first through holes (141) are formed in the bottom surface of the upper base lower shell (14), and the first through holes (141) are used for installing the upper end of the fence shaft;

The locking device (13) is used for locking the rotation angle of the fence shaft relative to the first through hole (141);

also comprising an alternating button device (11), wherein:

The alternating button device (11) is arranged in the first cavity, the upper end of the alternating button device (11) penetrates through the upper base upper shell (12), and the lower end of the alternating button device (11) is propped against the locking device (13);

The alternating button device (11) controls the locking and unlocking of the locking device (13) by pressing to limit the relative position of the locking device (13);

the locking device (13) comprises a locking clamping plate (131), a second spring (133), a first transition wheel (132) and two locking sleeves (134), wherein:

The upper end face of the locking clamping plate (131) is propped against the alternating button device (11), the lower end face of the locking clamping plate is propped against the second spring (133), two second through holes (1311) are formed in the locking clamping plate (131), and inner teeth are formed in the inner wall of the second through holes (1311) in a circle;

The second spring (133) is arranged on the upper base lower shell (14);

the upper end of the locking sleeve (134) passes through the second through hole (1311), a double-layer gear (1341) is arranged at the lower end of the locking sleeve (134), and when the relative position of the fence shaft is locked, the lower-layer gear of the double-layer gear (1341) is meshed with internal teeth in the second through hole (1311);

A third through hole (1342) is formed in the top surface of the locking sleeve (134), the first through hole (141) and the third through hole (1342) form a first channel for inserting the upper end of the fence shaft, and the locking sleeve (134) rotates synchronously with the fence shaft;

the first transition wheels (132) are arranged between the two locking sleeves (134), the first transition wheels (132) are respectively meshed with lower gears of the two double-layer gears (1341), and the first transition wheels (132) are arranged on the upper base lower shell (14).

2. The upper base according to claim 1, wherein the tooth surfaces at the lower ends of the inner teeth of the second through hole (1311) are inclined surfaces, the tooth surfaces of the upper gear of the double-layer gear (1341) are abutted against the inclined surfaces at the lower ends of the inner teeth of the second through hole (1311), and the upper gear and the lower gear of the double-layer gear (1341) can be meshed with the inner teeth of the second through hole (1311) to ensure smooth meshing of the lower gear of the double-layer gear (1341) with the inner teeth when the relative position of the fence shaft is locked.

3. A lower base for use with an upper base according to claim 1 or 2, comprising a lower base upper housing (21), a telescopic device (22), wheels (23) and a lower base lower housing (24), wherein:

The lower base upper shell (21) is covered on the lower base lower shell (24), a second cavity is formed in the lower base upper shell, and the telescopic device (22) is connected with the wheel (23) and is arranged in the second cavity;

Two fourth through holes (211) are formed in the top surface of the lower base upper shell (21); the fourth through hole (211) is used for installing the lower end of the fence shaft;

-said telescopic means (22) are adapted to control the extension and retraction of said wheels (23);

The telescopic device (22) comprises two telescopic sleeves (221), a third spring (222), a mounting plate (224), a second transition wheel (223) and a telescopic plate (225), wherein:

The mounting plate (224) is fixedly arranged in the second cavity, and the mounting plate (224) is provided with two sixth through holes (2241);

The telescopic sleeve (221) sequentially passes through the sixth through hole (2241) and the telescopic plate (225) and then is connected with the third spring (222), and the telescopic sleeve (221) can rotate in the sixth through hole (2241);

Openings (2211) are formed in the top surfaces of the two telescopic sleeves (221), the openings (2211) and the fourth through holes (211) form a second channel for installing the lower end of the fence shaft, and the telescopic sleeves (221) and the fence shaft rotate synchronously;

The second transition wheels (223) are arranged on the mounting plate (224) and are positioned between the two telescopic sleeves (221), external teeth are arranged on the outer wall of the upper part of each telescopic sleeve (221), and the second transition wheels (223) are respectively meshed with the external teeth of the two telescopic sleeves (221);

The upper end of the third spring (222) is sleeved on the lower part of the telescopic sleeve (221) and props against the bottom surface of the telescopic plate (225), the lower end of the third spring (222) props against the lower base lower shell (24), and the third spring (222) is used for pushing out and pulling back the telescopic plate (225);

The lower end face of the expansion plate (225) is provided with a wheel placing bin (2252), a lower base lower shell (24) is provided with a fifth through hole (241), a part of the wheel (23) is arranged in the wheel placing bin (2252), and the wheel (23) can extend and retract along the fifth through hole (241) through the up-and-down expansion of the expansion plate (225).

4. A lower base according to claim 3, characterized in that the outer wall of the telescopic sleeve (221) is provided with a slide block, the telescopic plate (225) is provided with an annular slide rail (2251), wherein:

The sliding block is arranged on the lower side of external teeth of the telescopic sleeve (221), is arranged in the annular sliding rail (2251), and can slide in the annular sliding rail (2251);

the bottom of the annular sliding rail (2251) is wound around to form wavy fluctuation, and the expansion plate (225) can expand and contract up and down along with the sliding of the sliding block.

5. The lower base according to claim 4, characterized in that the upper part of the telescopic sleeve (221) is provided with a second alternating button device (25) and a second locking clamp (26), wherein:

The second alternate button device (25) is arranged in the second cavity, the upper end of the second alternate button device (25) passes through the lower base upper shell (21), and the lower end of the second alternate button device (25) is propped against the second locking clamping plate (26);

Two seventh through holes (261) are formed in the second locking clamping plate (26), inner teeth are arranged around the inside of each seventh through hole (261), outer teeth of the telescopic sleeve (221) are double-layer teeth, inclined planes are arranged on the inner teeth in the seventh through holes (261), upper-layer teeth of the double-layer teeth are abutted to the inner teeth in the seventh through holes (261), and when the rotation angle of the fence shaft is locked, lower-layer teeth of the double-layer teeth are meshed with the inner teeth in the seventh through holes (261).

6. A rail connector comprising an upper base (1) according to any one of claims 1-2 and a lower base (2) according to any one of claims 3-5, characterized in that the upper base (1) and the lower base (2) are used for mounting rail shafts;

The upper base (1) and the lower base (2) can synchronously rotate about the fence shaft.

7. A fencing system comprising at least two fence panels and at least one set of fence connectors as in claim 6 wherein:

Fence shafts (5) are arranged at the upper end and the lower end of the two sides of the fence plate;

the upper fence shafts (5) of the two fence plates are connected through the upper base (1);

The lower end fence shafts (5) of the two fence plates are connected through the lower base (2).