CN215548370U

CN215548370U - Screwing and fastening device for narrow space

Info

Publication number: CN215548370U
Application number: CN202121082226.2U
Authority: CN
Inventors: 徐景; 陆怡霖; 段滨; 李勇明; 王倩倩; 李悝
Original assignee: Chengdu Hongming Electronics Co Ltd
Current assignee: Chengdu Hongming Electronics Co Ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2022-01-18
Anticipated expiration: 2031-05-20

Abstract

The utility model discloses a screwing fastening device for a narrow space, which is used for screwing a screw, wherein a polygonal counter bore is arranged on a nut of the screw, the screwing fastening device comprises an operating rod and a transmission disc, a first connecting column is arranged at one end of the operating rod, a blind hole is arranged on the first connecting column, a convex block is arranged on the peripheral edge of the transmission disc, a second connecting column is arranged on the convex block, the second connecting column can be arranged in the blind hole of the first connecting column and can rotate relatively, a third connecting column is arranged on one side of the transmission disc, the third connecting column can be arranged in the polygonal counter bore of the screw, a connecting hole is arranged in the center of the transmission disc, and the first connecting column can be arranged in the connecting hole. According to the utility model, by arranging the operating rod and the transmission disc, the transmission disc and the screw can be driven to rotate for multiple circles quickly when the screw is started to be screwed, and the transmission disc and the screw are driven to rotate in the screwing stage, so that the screw is quickly screwed, and the aim of quickly screwing or unscrewing the screw in a narrow space is fulfilled.

Description

Screwing and fastening device for narrow space

Technical Field

The present invention relates to a screw tightening device for screwing a screw, and more particularly, to a screw tightening device for screwing a screw in a narrow space.

Background

Currently, the development of electronic information has greatly promoted the development of electronic products related to various electronic instruments and electronic devices, and various electronic products have been spread in various fields such as life and work. When electronic products are assembled, various parts or components in the electronic products need to be fixed by screws, and most of the electronic products such as power filters have limited internal space, and although common tools such as screwdrivers or hexagonal wrenches are used, the efficiency is very low, and even the screws may not achieve an ideal fastening effect.

For example, if an inner hexagon wrench is used to screw an inner hexagon screw installed in an electronic product with a narrow space, due to space limitation, the rotation angle of the inner hexagon wrench at each time can only reach 180 degrees at most, and the inner hexagon wrench can finish fastening by repeatedly screwing for many times, which is time-consuming and seriously affects the production efficiency.

In order to solve the above problems, it is desirable to provide a screw fastening device for a narrow space, which can quickly fasten screws in the narrow space, so as to improve the efficiency of mounting and fixing various components or assemblies in an electronic product.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the above problems, and an object of the present invention is to provide a screw tightening apparatus for a narrow space, which can quickly tighten a screw.

The utility model realizes the purpose through the following technical scheme:

the utility model provides a revolve wrong fastener for narrow and small space for revolve wrong screw, be equipped with the polygon counter bore on the nut of screw, including action bars and driving disc, the one end of action bars is equipped with first spliced pole, the axial of first spliced pole with the axial mutually perpendicular of action bars, be equipped with the blind hole with the axial on the first spliced pole, the radial cross-section neighboring of first spliced pole is the polygon, the neighboring of driving disc is equipped with the outside circumferencial direction evagination lug, be equipped with the second spliced pole on the lug, the axial of second spliced pole with driving disc place plane mutually perpendicular, the second spliced pole can be arranged in the blind hole of first spliced pole and can relative rotation, one side of driving disc is equipped with the third spliced pole, the axial of third spliced pole with driving disc place plane mutually perpendicular, the radial cross section neighboring of third spliced pole is the polygon and can arrange in the polygon counter sink of screw, the central point of driving disc put be equipped with the connecting hole of the same axial of third spliced pole, the radial cross section of connecting hole is the polygon, first spliced pole can be arranged in the connecting hole.

As preferred, in order to minimize drive plate and third spliced pole in the axial occupation space of third spliced pole in order to adapt to narrow and small operating space better, one side of drive plate is equipped with and is used for placing the heavy groove of the nut of screw just the third spliced pole is arranged in the central point of this heavy inslot and is put.

Preferably, in order to adapt to the most used hexagonal counter bore, i.e. the inner hexagonal counter bore, the polygonal counter bore on the nut of the screw is the hexagonal counter bore, the outer peripheral edge of the radial section of the first connecting column is hexagonal, the outer peripheral edge of the radial section of the third connecting column is hexagonal, and the connecting hole is a through hole.

Preferably, in order to facilitate the screwing operation, the other end of the operating rod is provided with an operating handle.

The utility model has the beneficial effects that:

according to the utility model, the operating rod and the transmission disc are arranged, the first connecting column is arranged on the operating rod, the second connecting column, the third connecting column and the connecting hole are arranged on the transmission disc, the first connecting column can be rotatably connected with the second connecting column and can also be connected with the connecting hole on the transmission disc, the third connecting column can be connected with the polygonal counter bore on the screw cap of the screw, the transmission disc and the screw can be driven to rotate for multiple circles at the beginning of screwing through the operating rod, the transmission disc and the screw are driven to rotate in the screwing stage, so that the screw is quickly screwed down, the purpose of quickly screwing down or unscrewing the screw in a narrow space is realized, and the installation and fixing efficiency of various parts or components in an electronic product is improved.

Drawings

FIG. 1 is one of perspective views of a screw tightening device for a narrow space according to the present invention, showing a screw;

FIG. 2 is a second perspective view of the screw tightening device for a narrow space according to the present invention, showing a screw;

fig. 3 is a perspective view showing the application of the screw tightening device for a narrow space according to the present invention.

Detailed Description

The utility model will be further described with reference to the accompanying drawings in which:

as shown in fig. 1 and 2, the screwing and fastening device for narrow space of the present invention is used for screwing a screw 11, a hexagonal counter bore 12 is provided on a nut of the screw 11, the screwing and fastening device for narrow space comprises an operating rod 2 and a transmission disc 7, a first connecting column 3 is provided at one end of the operating rod 2, an operating handle 1 is provided at the other end of the operating rod 2, an axial direction of the first connecting column 3 is perpendicular to an axial direction of the operating rod 2, a coaxial blind hole 4 is provided on the first connecting column 3, a peripheral edge of a radial cross section of the first connecting column 3 is hexagonal, a protruding block 6 protruding outward in a peripheral direction is provided on a peripheral edge of the transmission disc 7, a second connecting column 5 is provided on the protruding block 6, an axial direction of the second connecting column 5 is perpendicular to a plane where the transmission disc 7 is located, the second connecting column 5 can be placed in the blind hole 4 of the first connecting column 3 and can rotate relatively, one side of driving disc 7 is equipped with the heavy groove 8 that is used for placing the nut of screw 11, central point in heavy groove 8 puts and is equipped with third spliced pole 9, the axial of third spliced pole 9 and driving disc 7 place plane mutually perpendicular, the radial cross-section neighboring of third spliced pole 9 is the hexagon and can arrange screw 11 in the hexagon counter bore 12, the central point of driving disc 7 puts and is equipped with the connecting hole 10 with the axial of third spliced pole 9, connecting hole 10 is the through-hole, the radial cross-section of connecting hole 10 is the hexagon, connecting hole 10 can be arranged in to first spliced pole 3.

As shown in fig. 1-3, when in use, the third connecting column 9 on the transmission disc 7 is placed in the hexagonal counter bore 12 of the screw 11, at this time, the nut of the screw 11 is placed in the counter bore 8, after the corresponding flat pad and elastic pad are sequentially placed at the position of the screw 11 to be installed in the electronic device 13, the threaded end of the screw 11 is aligned to the position of the screw hole to be installed, the threaded end of the screw 11 is placed in the screw hole to be installed, and the connection between the transmission disc 7 and the screw 11 is maintained; then, the operating handle 1 on the operating rod 2 is held by hand, the first connecting column 3 is sleeved outside the second connecting column 5, the operating handle 1 is controlled to rotate, the operating rod 2 drives the transmission disc 7 to rotate one circle by one circle along the circumferential direction, and the screw 11 is driven to rotate one circle by one circle at the same time until the screw 11 is difficult to rotate; then the operating rod 2 is taken down, the first connecting column 3 is inserted into the connecting hole 10 of the transmission disc 7 in an aligned mode, the operating handle 1 is continuously screwed along the same direction until the operating handle cannot be screwed continuously, and at the moment, the screw 11 achieves fastening installation. Similarly, if it is desired to unscrew the screw 11, the operating rod 2 can be moved in the opposite direction as described above.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so long as the technical solutions can be realized on the basis of the above embodiments without creative efforts, which should be considered to fall within the protection scope of the patent of the present invention.

Claims

1. The utility model provides a revolve wrong fastener for narrow and small space for revolve wrong screw, be equipped with polygon counter bore on the nut of screw, its characterized in that: including action bars and driving disc, the one end of action bars is equipped with first spliced pole, the axial of first spliced pole with the axial mutually perpendicular of action bars, be equipped with the blind hole with the axial on the first spliced pole, the radial cross-section neighboring of first spliced pole is the polygon, the neighboring of driving disc is equipped with the outside protruding lug of outside peripheral direction, be equipped with the second spliced pole on the lug, the axial of second spliced pole with driving disc place plane mutually perpendicular, the second spliced pole can be arranged in the blind hole of first spliced pole and can relative rotation, one side of driving disc is equipped with the third spliced pole, the axial of third spliced pole with driving disc place plane mutually perpendicular, the radial cross-section neighboring of third spliced pole is the polygon and can arrange in the polygon counter bore of screw, the central point of driving plate puts and is equipped with the connecting hole of third spliced pole coaxial direction, the radial cross-section of connecting hole is the polygon, first spliced pole can be arranged in the connecting hole.

2. The screw-tightening device for a narrow space according to claim 1, characterized in that: and a sinking groove for placing a nut of the screw is formed in one side of the transmission disc, and the third connecting column is arranged in the center of the sinking groove.

3. The screw-tightening device for a narrow space according to claim 1 or 2, characterized in that: the polygonal counter bore on the nut of the screw is a hexagonal counter bore, the peripheral edge of the radial section of the first connecting column is a hexagon, the peripheral edge of the radial section of the third connecting column is a hexagon, and the connecting hole is a through hole.

4. The screw-tightening device for a narrow space according to claim 1 or 2, characterized in that: and the other end of the operating rod is provided with an operating handle.