CN217255925U

CN217255925U - Large-torque bolt assembling and disassembling wrench for narrow space

Info

Publication number: CN217255925U
Application number: CN202221165111.4U
Authority: CN
Inventors: 赵刚
Original assignee: Shenyang Bosiyuan Machinery Manufacturing Co ltd
Current assignee: Shenyang Bosiyuan Machinery Manufacturing Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-08-23
Anticipated expiration: 2032-05-16

Abstract

The utility model discloses a narrow and small space is with big moment of torsion bolt loading and unloading spanner relates to spanner technical field, specifically includes handle end and work end, handle end all is hollow structure with the inside of work end, and is located it is connected with first pivot to rotate on the inner wall of handle end, be provided with in the first pivot and extend to the outside drive plate of handle end, be provided with the swivel nut on the terminal surface of work end, it is connected with second pivot and third pivot to rotate on the inner wall of work end, and is connected through the transmission of drive assembly between second pivot and the first pivot, be connected with the fourth gear through one-way drive assembly in the third pivot, just the third pivot with coaxial coupling between the swivel nut. The utility model discloses a press the drive plate, make the drive plate rotate, and then make the swivel nut rotate, only need press the drive plate and can make the swivel nut rotate, can be applicable to the use in narrow and small space, made things convenient for the user, easy operation is convenient.

Description

Large-torque bolt assembling and disassembling wrench for narrow space

Technical Field

The utility model relates to a spanner technical field specifically is narrow and small space is with big moment of torsion bolt loading and unloading spanner.

Background

The wrench is a common mounting and dismounting tool, and is a hand tool for screwing bolts, screws, nuts and other screw threads to tightly hold the opening or trepanning fasteners of the bolts or the nuts by utilizing the lever principle, the wrench is usually made of structural steel made of carbon or alloy materials, the wrench is usually provided with an opening or trepanning for clamping the bolts or the nuts at one end or two ends of a handle part, and when the wrench is used, external force is applied to the handle part along the rotation direction of the screw threads, so that the bolts or the nuts can be screwed.

At present, at the in-process that the spanner used, need rotate the commentaries on classics handle on the spanner when screwing to the screw, and then drive the rotation of turning round through the rotation of changeing the handle, consequently twist to the screw and move, but in the use of time, because construction site's restriction, the space that leads to the operation is comparatively narrow and small, can't rotate the spanner fast, and because the narrow and small spanner that leads to in place can only rotate slowly and the narrow range, consequently twist the efficiency of moving the screw and be lower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a narrow and small space is with big moment of torsion bolt loading and unloading spanner to propose in solving above-mentioned background art because construction site's restriction, the space that leads to the operation is comparatively narrow and small, can't rotate the problem of spanner fast.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

the utility model provides a large-torque bolt loading and unloading spanner for narrow space, which comprises a handle end and a working end, wherein the handle end and the working end are both hollow structures, and the inner wall of the handle end is rotatably connected with a first rotating shaft, the first rotating shaft is provided with a driving plate extending to the outside of the handle end, and one end surface of the working end is provided with a screw sleeve;

the inner wall of the working end is rotatably connected with a second rotating shaft and a third rotating shaft, the second rotating shaft is in transmission connection with the first rotating shaft through a transmission assembly, the third rotating shaft is connected with a fourth gear through a one-way driving assembly, the third rotating shaft is in coaxial connection with the threaded sleeves, and the second rotating shaft is sleeved with a third gear meshed with the fourth gear.

Preferably, a torsion spring is arranged on the first rotating shaft, and the other end of the torsion spring is connected with the inner wall of the handle end.

Preferably, the transmission assembly comprises a first gear sleeved on the first rotating shaft and a second gear sleeved on the second rotating shaft, and the first gear is in transmission connection with the second gear through a chain.

Preferably, the unidirectional driving assembly comprises a groove uniformly arranged on the fourth gear along the circumferential direction of the fourth gear, the groove is internally hinged with a ratchet, a torsion spring is arranged at the joint of the ratchet and the groove, the unidirectional driving assembly further comprises a ratchet wheel sleeved on the third rotating shaft, and the ratchet wheel are mutually matched.

Preferably, the working end is made of clear PE plastic.

Preferably, the side of the handle end is provided with a yielding hole for the driving plate to rotate, and the cross section of the driving plate is fan-shaped.

Preferably, the side edge of the driving plate, which is positioned outside the handle end, is provided with anti-skid grains.

Compared with the prior art, the above one or more technical schemes have the following beneficial effects:

through pressing the drive plate, make the drive plate rotate, and then make the swivel nut rotate, only need press the drive plate and can make the swivel nut rotate, can be applicable to the use in narrow and small space, made things convenient for the user, easy operation is convenient.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a schematic structural view of the screw sleeve of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a schematic structural view of the transmission assembly of the present invention;

FIG. 5 is a schematic structural view of the one-way driving assembly of the present invention;

fig. 6 is a schematic view of the connection structure of the first rotating shaft and the torsion spring of the present invention;

in the figure:

1. a handle end; 2. a working end; 3. a threaded sleeve; 4. a drive plate; 5. a first rotating shaft; 6. a torsion spring; 7. a second rotating shaft; 8. a transmission assembly; 801. a first gear; 802. a second gear; 803. a chain; 9. a third gear; 10. a fourth gear; 11. a third rotating shaft; 12. a unidirectional drive assembly; 121. a groove; 122. a ratchet; 123. and (4) ratchet wheels.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-6, a wrench for assembling and disassembling a large-torque bolt in a narrow space includes a handle end 1 and a working end 2, the interior of the handle end 1 and the interior of the working end 2 are both hollow structures, and the hollow structures of the handle end 1 and the interior of the working end 2 are communicated with each other, when manufacturing, the joint of the handle end 1 and the working end 2 can be glued by a glue or can be manufactured by an integral molding technique, in addition, a first rotating shaft 5 is rotatably connected to the inner wall of the handle end 1, a driving plate 4 extending to the exterior of the handle end 1 is disposed on the first rotating shaft 5, as shown in fig. 3, a recess groove for facilitating the connection of the first rotating shaft 5 and the driving plate 4 is disposed on the driving plate 4, the recess groove can be rectangular or circular, which is not described herein again, a nut 3 is disposed on an end surface of the working end 2, a slot matched with the top end of the nut is disposed on the nut 3, the top end of the nut is conveniently clamped in the wrench, so that the nut can be rotated integrally by the wrench;

a second rotating shaft 7 and a third rotating shaft 11 are rotatably connected to the inner wall of the working end 2, the second rotating shaft 7 is in transmission connection with the first rotating shaft 5 through a transmission assembly 8, when a wrench is needed, the driving plate 4 is pressed to enable the driving plate 4 to rotate around the axis of the first rotating shaft 5 and drive the first rotating shaft 5 to rotate synchronously, and the second rotating shaft 7 can rotate through the transmission assembly 8 when the first rotating shaft 5 rotates;

the third rotating shaft 11 is connected with a fourth gear 10 through a one-way driving assembly 12, the third rotating shaft 11 is coaxially connected with the threaded sleeve 3, the third gear 9 meshed with the fourth gear 10 is sleeved on the second rotating shaft 7, when the second rotating shaft 7 rotates, the second rotating shaft 7 drives the third gear 9 to synchronously rotate, and the third gear 9 is meshed with the fourth gear 10, so that the fourth gear 10 drives the third rotating shaft 11 to rotate due to the rotation of the third gear 9, and further the third rotating shaft 11 drives the threaded sleeve 3 to rotate.

Please refer to fig. 6, a torsion spring 6 is disposed on the first rotating shaft 5, and the other end of the torsion spring 6 is connected to the inner wall of the handle end 1, through the disposed torsion spring 6, when the driving plate 4 is pressed, the first rotating shaft 5 drives the torsion spring 6 to tighten, and when the driving plate 4 is released, the torsion spring 6 restores to deform and drives the first rotating shaft 5 and the driving plate 4 to return to the original position, so as to facilitate recycling.

Please refer to fig. 3 and fig. 4, the transmission assembly 8 includes a first gear 801 sleeved on the first rotating shaft 5 and a second gear 802 sleeved on the second rotating shaft 7, the first gear 801 and the second gear 802 are connected by a chain 803, when the first rotating shaft 5 rotates, the first gear 801 can be driven, and under the action of the chain 803, the second gear 802 drives the second rotating shaft 7 to rotate.

Please refer to fig. 5, the unidirectional driving assembly 12 includes a groove 121 uniformly disposed on the fourth gear 10 along the circumferential direction of the fourth gear 10, a ratchet 122 is hinged inside the groove 121, a torsion spring 6 is disposed at the joint of the ratchet 122 and the groove 121, the unidirectional driving assembly 12 further includes a ratchet 123 sleeved on the third rotating shaft 11, the ratchet 123 and the ratchet 122 are mutually matched, through the mutual matching between the two ratchet 123 and the ratchet 122, when the third rotating shaft 11 drives the ratchet 123 to rotate clockwise, under the action of the ratchet 122 and the torsion spring 6, the ratchet 123 can drive the ratchet 122 and the fourth gear 10 to rotate, and when the third rotating shaft 11 drives the ratchet 123 to rotate counterclockwise, under the special shape of the upper teeth of the ratchet 123, the ratchet 123 rotates and continuously compresses the ratchet 122, so that the fourth gear 10 cannot rotate, and further the third rotating shaft 11 can only drive the fourth gear 10 to rotate clockwise, the screw sleeve 3 can be conveniently rotated only instantaneously, and of course, if the screw sleeve 3 needs to be rotated counterclockwise, the direction of the ratchet 123 and the direction of the ratchet 122 need only be changed.

Referring to fig. 1 and 2, the working end 2 is made of transparent PE plastic, and the working end 2 made of the material is convenient for people to observe the screw sleeve 3, so that the screw sleeve 3 is easier to be clamped with the nut.

Please refer to fig. 2, a side of the handle end 1 is provided with an abdicating hole for the driving plate 4 to rotate, and the cross section of the driving plate 4 is fan-shaped, as can be seen from fig. 3, the driving plate 4 with fan-shaped structure can make the driving plate 4 protrude out of the outer end of the handle end 1, and the space occupied by the driving plate 4 located inside the handle end 1 is smaller, which saves more space.

Please refer to fig. 2, the side of the driving board 4 outside the handle end 1 is provided with anti-slip lines, and the driving board 4 with anti-slip lines is less likely to slip when being pressed, so as to facilitate the use of people.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The large-torque bolt loading and unloading wrench for the narrow space comprises a handle end (1) and a working end (2), and is characterized in that the handle end (1) and the working end (2) are both hollow structures, a first rotating shaft (5) is rotatably connected to the inner wall of the handle end (1), a driving plate (4) extending to the outside of the handle end (1) is arranged on the first rotating shaft (5), and a threaded sleeve (3) is arranged on one end face of the working end (2);

rotate on the inner wall of work end (2) and be connected with second pivot (7) and third pivot (11), and be connected through transmission assembly (8) transmission between second pivot (7) and first pivot (5), be connected with fourth gear (10) through one-way drive assembly (12) on third pivot (11), just third pivot (11) with coaxial coupling between swivel nut (3), cup joint third gear (9) with fourth gear (10) meshing on second pivot (7).

2. The large torque bolt handling wrench for a narrow space according to claim 1, wherein: and a torsion spring (6) is arranged on the first rotating shaft (5), and the other end of the torsion spring (6) is connected with the inner wall of the handle end (1).

3. The large torque bolt handling wrench for a narrow space according to claim 1, wherein: the transmission assembly (8) comprises a first gear (801) sleeved on the first rotating shaft (5) and a second gear (802) sleeved on the second rotating shaft (7), and the first gear (801) is in transmission connection with the second gear (802) through a chain (803).

4. The large torque bolt handling wrench for a narrow space according to claim 1, wherein: the unidirectional driving assembly (12) comprises grooves (121) evenly formed in the fourth gear (10) along the circumferential direction of the fourth gear (10), ratchet teeth (122) are hinged to the inner portions of the grooves (121), torsion springs (6) are arranged at the joints of the ratchet teeth (122) and the grooves (121), the unidirectional driving assembly (12) further comprises ratchet wheels (123) sleeved on the third rotating shaft (11), and the ratchet wheels are matched with the ratchet teeth (122).

5. The large torque bolt handling wrench for a narrow space according to claim 1, wherein: the working end (2) is made of transparent PE plastic.

6. The large torque bolt handling wrench for a narrow space according to claim 1, wherein: the side of handle end (1) is equipped with and supplies drive plate (4) to carry out the pivoted hole of stepping down, just the cross section of drive plate (4) is fan-shaped.

7. The large torque bolt handling wrench for a narrow space according to claim 1, wherein: the side edge of the driving plate (4) positioned outside the handle end (1) is provided with anti-skid grains.