CN218062993U

CN218062993U - Expansion screw sleeve with good fixing effect

Info

Publication number: CN218062993U
Application number: CN202220924940.XU
Authority: CN
Inventors: 沈卫彪; 尹团伟; 章绍明
Original assignee: Ningbo Sardis Hardware Products Co ltd
Current assignee: Ningbo Sardis Hardware Products Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-12-16
Anticipated expiration: 2032-04-21

Abstract

The application relates to the technical field of expansion screw sleeves, in particular to an expansion screw sleeve with a good fixing effect. This application, including the expansion screw cover body, the arc surface of expansion screw cover body is equipped with stop device, stop device includes four fixed plates, four the fixed plate all with the arc surface fixed connection of expansion screw cover body, the fixed plate is the polypropylene board, the fixed plate sets up with the slope of expansion screw cover body, one side fixedly connected with inserted bar of expansion screw cover body is kept away from to the fixed plate, the one end fixedly connected with spine of fixed plate is kept away from to the inserted bar, the spine is the triangle-shaped structure, one side fixedly connected with soft cover that the fixed plate is close to the inserted bar, the one end fixedly connected with support ring of fixed plate is kept away from to the soft cover, the size of soft cover and the size looks adaptation of inserted bar. The problem that the expansion screw sleeve drops in the wall hole easily has been solved after fixed expansion screw sleeve to this application.

Description

Expansion screw sleeve with good fixing effect

Technical Field

The utility model relates to an expansion screw cover technical field especially relates to a fixed effectual expansion screw cover.

Background

The expansion screw sleeve is a hardware used for fixing a bracket, a hanger or equipment on a wall and a column, the expansion screw sleeve is generally knocked into an opened wall hole by using a hammer, and then a screw is inserted into the expansion screw sleeve to limit the screw.

SUMMERY OF THE UTILITY MODEL

The purpose of this application is in order to solve the fixed effect problem that exists expansion screw cover and wall body among the prior art still not good enough, and the expansion screw cover that fixed effectual that provides.

In order to achieve the purpose, the following technical scheme is adopted in the application: the utility model provides a fixed effectual expansion screw cover, includes expansion screw cover body, the arc surface of expansion screw cover body is equipped with stop device, stop device includes four fixed plates, the fixed plate is located the position that the open end was kept away from to expansion screw cover body, four the fixed plate all with the arc surface fixed connection of expansion screw cover body, the fixed plate is the polypropylene board, the fixed plate sets up towards the open end direction slope of expansion screw cover body, one side fixedly connected with inserted bar of expansion screw cover body is kept away from to the fixed plate.

The effect that above-mentioned part reaches is: through setting up stop device, improved the fixed effect of inflation screw cover body in the wall hole, prevent that inflation screw cover body from droing in the wall hole behind fixed inflation screw cover body, improved the security of device.

Preferably, one end of the inserted bar, which is far away from the fixing plate, is fixedly connected with a spike, and the spike is of a triangular structure.

The effect that above-mentioned part reaches is: the expansion screw sleeve body is drawn, so that the tip is pricked on the inner surface of the wall hole, and the fixing effect of the expansion screw sleeve body is improved.

Preferably, one side fixedly connected with soft cover that the fixed plate is close to the inserted bar, the one end fixedly connected with support ring of fixed plate is kept away from to the soft cover, the size of soft cover and the size looks adaptation of inserted bar.

The effect that above-mentioned part reaches is: shelter from the spine through the soft cover, avoid the staff when the expansion screw cover body of taking the spine to cause the condition emergence of accidental injury to staff's hand, improved the security of device.

Preferably, the fixed plate is provided with two limiting rods in a sliding insertion manner, one ends of the limiting rods, far away from the fixed plate, are fixedly connected with fixed blocks, and the fixed blocks are fixedly connected with the arc surfaces of the support rings.

The effect that above-mentioned part reaches is: when the expansion screw sleeve body is pulled, the sharp pricks into the wall hole, the wall hole drives the fixing block to move, the fixing block drives the limiting rod to slide in the fixing plate, the effect of automatically contracting the soft sleeve when the expansion screw sleeve body is fixed is achieved, and convenience of the device is improved.

Preferably, two pull ropes are slidably inserted in the fixing plate and fixedly connected with the arc surface of the expansion screw sleeve body, and one ends of the two pull ropes, which are far away from the expansion screw sleeve body, are fixedly connected with limiting plates.

The effect that above-mentioned part reaches does: carry on spacingly through stay cord, limiting plate to the fixed plate to the excessive deformation of restriction fixed plate is kept away from the expansion screw cover body, and very big avoided the fixed plate along with to the twitching of expansion screw cover body and lead to the cracked condition of fixed plate to take place, improved the stability when carrying on spacingly to the expansion screw cover body.

Preferably, this internal adjusting device that is equipped with of expansion screw cover, adjusting device includes the nut, the nut is located this internal position that is close to the open end of expansion screw cover, the locating hole has all been seted up to the both sides of expansion screw cover body, one side fixedly connected with spring that the nut is close to expansion screw cover body locating hole, the one end fixedly connected with locating lever that the nut was kept away from to the spring, the size of locating lever and the size looks adaptation of expansion screw cover body locating hole.

The effect that above-mentioned part reaches does: through setting up adjusting device, reached and be convenient for screw into the internal effect of inflation screw cover, improved the practicality of device.

Preferably, one side of the nut close to the positioning rod is fixedly connected with a sleeve, and the sleeve is connected with the arc surface of the positioning rod in a sliding mode.

The effect that above-mentioned part reaches does: the positioning rod slides in the sleeve, so that the situation that the positioning rod deviates when the inner surface of the expansion screw sleeve body slides is avoided, and the stability of the device is improved.

Preferably, one side of the nut, which is close to the opening end of the expansion screw sleeve body, is fixedly connected with two fixing rods, and one end, which is far away from the nut, of each fixing rod is fixedly connected with a circular ring.

The effect that above-mentioned part reaches does: the ring drives the fixing rod to move by pushing the ring, and the fixing rod drives the nut to move, so that the effect of conveniently placing the nut in the expansion screw sleeve body is achieved.

To sum up, the beneficial effect of this application does:

in this application, through setting up stop device, improved the fixed effect of expansion screw cover body in the wall hole, prevent that expansion screw cover body from droing in the wall hole behind fixed expansion screw cover body, improved the security of device.

Drawings

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is a schematic structural view of a stop device according to the present application;

FIG. 3 is a disassembled schematic view of the spacing device of the present application;

FIG. 4 is a schematic view of the structure of the adjustment device of the present application;

fig. 5 is a disassembled schematic view of the adjusting device in the present application.

Illustration of the drawings: 1. an expansion screw sleeve body; 2. a limiting device; 21. a fixing plate; 22. a rod is inserted; 23. pricking with a sharp point; 24. a soft sleeve; 25. a support ring; 26. a limiting rod; 27. a fixed block; 28. pulling a rope; 29. a limiting plate; 3. an adjustment device; 31. a nut; 32. a spring; 33. positioning a rod; 34. a sleeve; 35. a fixing rod; 36. a circular ring.

Detailed Description

Referring to fig. 1, the present application provides a technical solution: the utility model provides an expansion screw cover that fixed effectual, includes expansion screw cover body 1, and expansion screw cover body 1's arc surface is equipped with stop device 2. Through setting up stop device 2, improved the fixed effect of expansion screw cover body 1 in the wall hole, prevent that expansion screw cover body 1 drops in following the wall hole behind fixed expansion screw cover body 1, improved the security of device. This internal adjusting device 3 that is equipped with of inflation screw cover through setting up adjusting device 3, has reached the effect of being convenient for screw into inflation screw cover body 1, has improved the practicality of device.

Referring to fig. 2 and 3, in the present embodiment: stop device 2 includes four fixed plates 21, fixed plate 21 is located the position that expansion screw cover body 1 kept away from the open end, four fixed plates 21 all with expansion screw cover body 1's arc surface fixed connection, fixed plate 21 is the polypropylene board, fixed plate 21 sets up towards the open end direction slope of expansion screw cover body 1, one side fixedly connected with inserted bar 22 of expansion screw cover body 1 is kept away from to fixed plate 21, the one end fixedly connected with spine 23 of fixed plate 21 is kept away from to inserted bar 22, spine 23 is the triangle-shaped structure, through make spine 23 prick on the internal surface in wall hole when twitching expansion screw cover body 1, the fixed effect of expansion screw cover body 1 has been improved. One side fixedly connected with soft cover 24 that fixed plate 21 is close to inserted bar 22, and the one end fixedly connected with support ring 25 of fixed plate 21 is kept away from to soft cover 24, and the size of soft cover 24 and inserted bar 22's size looks adaptation shelter from spine 23 through soft cover 24, and the condition that spine 23 caused the accidental injury to staff's hand when avoiding the staff to take expansion screw cover body 1 takes place, has improved the security of device.

Referring to fig. 2 and 3, in the present embodiment: two limiting rods 26 are slidably inserted in the fixing plate 21, one end of the limiting rod 26, which is far away from the fixing plate 21, is fixedly connected with a fixing block 27, the fixing block 27 is fixedly connected with the arc surface of the support ring 25, when the expansion screw sleeve body 1 is pulled, the spine 23 is pricked into a wall hole, the wall hole drives the fixing block 27 to move, the fixing block 27 drives the limiting rod 26 to slide in the fixing plate 21, the limiting rod 26 plays a role in guiding the movement of the support ring 25, the effect of automatically contracting the soft sleeve 24 when the expansion screw sleeve body 1 is fixed is achieved, and the convenience of the device is improved. Slide in the fixed plate 21 and insert and be equipped with two stay cords 28, the arc surface fixed connection of stay cord 28 and expansion screw cover body 1, the one end fixedly connected with limiting plate 29 of expansion screw cover body 1 is kept away from to two stay cords 28, through stay cord 28, limiting plate 29 is spacing to fixed plate 21, keep away from expansion screw cover body 1 with restriction fixed plate 21 excessively warp, very big avoided fixed plate 21 along with to the twitch of expansion screw cover body 1 and lead to the cracked condition of fixed plate 21 to take place, improved the stability when spacing is carried out expansion screw cover body 1.

Referring to fig. 4 and 5, specifically, the adjusting device 3 includes a nut 31, the nut 31 is located in the expansion screw sleeve body 1 and close to the position of the opening end, positioning holes are all formed in two sides of the expansion screw sleeve body 1, one side of the nut 31 close to the positioning holes of the expansion screw sleeve body 1 is fixedly connected with a spring 32, one end of the spring 32 far away from the nut 31 is fixedly connected with a positioning rod 33, the size of the positioning rod 33 is matched with the size of the positioning holes of the expansion screw sleeve body 1, one side of the nut 31 close to the positioning rod 33 is fixedly connected with a sleeve 34, the sleeve 34 is slidably connected with the arc surface of the positioning rod 33, the positioning rod 33 slides in the sleeve 34, the situation that the positioning rod 33 deviates when sliding on the inner surface of the expansion screw sleeve body 1 is avoided, the stability of the device is improved, one side of the nut 31 close to the opening end of the expansion screw sleeve body 1 is fixedly connected with two fixing rods 35, one end of the two fixing rods 35 far away from the ring 36 of the nut 31, the ring 36 drives the fixing rod 35 to drive the fixing rod 35 to move, the nut 31 to move, and the effect of facilitating the placement of the expansion screw sleeve body 1 is achieved.

The working principle is as follows: when the expansion screw sleeve body 1 needs to be installed, the expansion screw sleeve body 1 is knocked into the wall hole formed by using a hammer, the expansion screw sleeve body 1 is pulled to enable the spine 23 to be pricked on the inner surface of the wall hole, the spine 23 is shielded by the soft sleeve 24, the situation that the spine 23 causes accidental injury to hands of workers when the workers take the expansion screw sleeve body 1 is avoided, when the spine 23 is pricked into the side wall of the wall hole, the side wall of the wall hole drives the fixed block 27 to move, the fixed block 27 drives the limiting rod 26 to slide in the fixed plate 21, the effect that the soft sleeve 24 is automatically shrunk when the expansion screw sleeve body 1 is fixed is achieved, the effect of fixing the expansion screw sleeve body 1 is achieved at the moment, the fixed plate 21 is limited by the limiting plate 29, the situation that the fixed plate 21 is broken due to the pulling of the fixed plate 21 along with the expansion screw sleeve body 1 is greatly avoided, and the stability of limiting the expansion screw sleeve body 1 is improved.

When a bolt needs to be placed in the expansion screw sleeve body 1, the positioning rod 33 is pressed to enable the positioning rod 33 to slide in the sleeve 34 and compress the spring 32, the nut 31 is placed in the expansion screw sleeve body 1, the positioning rod 33 is abutted to the inner surface of the expansion screw sleeve body 1 through the elastic force of the spring 32, the ring 36 is pushed to enable the ring 36 to drive the fixing rod 35 to move, the fixing rod 35 drives the nut 31 to move, the nut 31 drives the spring 32 to move, the spring 32 drives the positioning rod 33 to slide on the inner surface of the expansion screw sleeve body 1, the positioning rod 33 slides in the sleeve 34, the situation that the positioning rod 33 deflects when sliding on the inner surface of the expansion screw sleeve body 1 is avoided, until the positioning rod 33 reaches the position of the positioning hole of the expansion screw sleeve body 1, the positioning rod 33 is driven to be inserted into the positioning hole of the expansion screw sleeve body 1 through the elastic force of the spring 32, and the effect of limiting on the nut 31 is achieved at the moment, so that the bolt can be screwed into the expansion screw sleeve body 1 conveniently.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Claims

1. The utility model provides a fixed effectual expansion screw cover, includes expansion screw cover body (1), its characterized in that: the arc surface of expansion screw cover body (1) is equipped with stop device (2), stop device (2) are including four fixed plates (21), fixed plate (21) are located the position that the open end was kept away from in expansion screw cover body (1), four fixed plate (21) all with the arc surface fixed connection of expansion screw cover body (1), fixed plate (21) are the polypropylene board, fixed plate (21) set up towards the open end direction slope of expansion screw cover body (1), one side fixedly connected with inserted bar (22) of expansion screw cover body (1) are kept away from in fixed plate (21).

2. The expansion screw sleeve with good fixing effect as claimed in claim 1, is characterized in that: one end of the inserted bar (22) far away from the fixing plate (21) is fixedly connected with a spine (23), and the spine (23) is of a triangular structure.

3. The expansion screw sleeve with good fixing effect as claimed in claim 1, is characterized in that: one side fixedly connected with soft cover (24) that fixed plate (21) are close to inserted bar (22), the one end fixedly connected with support ring (25) of fixed plate (21) are kept away from in soft cover (24), the size of soft cover (24) and the size looks adaptation of inserted bar (22).

4. The expansion screw sleeve with good fixing effect as claimed in claim 3, wherein: two limiting rods (26) are slidably inserted into the fixing plate (21), one end, far away from the fixing plate (21), of each limiting rod (26) is fixedly connected with a fixing block (27), and the fixing blocks (27) are fixedly connected with the arc surfaces of the support rings (25).

5. The expansion screw sleeve with good fixing effect as claimed in claim 1, is characterized in that: two pull ropes (28) are slidably inserted into the fixing plate (21), the pull ropes (28) are fixedly connected with the arc surface of the expansion screw sleeve body (1), and two limit plates (29) are fixedly connected to one ends, far away from the expansion screw sleeve body (1), of the pull ropes (28).

6. The expansion screw sleeve with good fixing effect as claimed in claim 1, is characterized in that: the expansion screw sleeve is characterized in that an adjusting device (3) is arranged in the expansion screw sleeve body (1), the adjusting device (3) comprises a nut (31), the nut (31) is located in the expansion screw sleeve body (1) and close to the position of the open end, positioning holes are formed in the two sides of the expansion screw sleeve body (1), one side of the nut (31) close to the positioning holes of the expansion screw sleeve body (1) is fixedly connected with a spring (32), one end of the spring (32) away from the nut (31) is fixedly connected with a positioning rod (33), and the size of the positioning rod (33) is matched with the size of the positioning holes of the expansion screw sleeve body (1).

7. The expansion screw sleeve with good fixing effect as claimed in claim 6, wherein: one side of the screw cap (31) close to the positioning rod (33) is fixedly connected with a sleeve (34), and the sleeve (34) is in sliding connection with the arc surface of the positioning rod (33).

8. The expansion screw sleeve with good fixing effect as claimed in claim 6, is characterized in that: nut (31) are close to one side fixedly connected with two dead levers (35) of expansion screw cover body (1) open end, two one end fixedly connected with ring (36) that nut (31) were kept away from in dead lever (35).