CN217873643U

CN217873643U - Expansion screw

Info

Publication number: CN217873643U
Application number: CN202220924441.0U
Authority: CN
Inventors: 沈卫彪; 尹团伟
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: 2022-11-22
Anticipated expiration: 2032-04-21

Abstract

The application discloses expansion screw, concretely relates to expansion screw field, this application includes the screw body, the surface cover of screw body has anti-skidding cover, anti-skidding cover's surface is equipped with stop device, stop device includes four fixed blocks, four the fixed block all with anti-skidding cover's lateral wall fixed connection, four two liang of a set of, two of fixed block the inside of fixed block is rotated and is connected with the pivot frame, the lateral wall fixedly connected with square tube of pivot frame, the inner wall sliding connection of square tube has the slider, the lateral wall fixedly connected with dead lever of slider, the one end fixedly connected with stopper of slider is kept away from to the dead lever, the stopper is the semicircle ring structure, and this application is through setting up stop device, has made things convenient for spacing in the installation between screw body and the anti-skidding cover, has improved the security to in the installation between anti-skidding cover and the expansion screw.

Description

Expansion screw

Technical Field

The application relates to the field of expansion screws, in particular to an expansion screw.

Background

The expansion screw is the structure that has screw and antiskid cover to constitute, with antiskid ways behind the inner wall in mounted position hole, with the screw in the antiskid cover, can expand the antiskid cover, thereby improved the stability of connecting article, because the screw structure is smaller, need fix a position between handheld screw and the antiskid cover in the installation, use nailing equipment to twist the screw when the staff, the condition of being crowded wounded appears easily in this process staff hand, thereby the security to in the expansion screw installation has been reduced.

SUMMERY OF THE UTILITY MODEL

This application is for solving and fix a position the lower problem of security between handheld screw and the antiskid cover and propose an inflation screw, including the screw body, the surface cover of screw body has the antiskid cover, the surface of antiskid cover is equipped with stop device, stop device includes four fixed blocks, four the fixed block all with the lateral wall fixed connection of antiskid cover, four two liang of fixed blocks are a set of, two the inside of fixed block is rotated and is connected with the pivot frame, the lateral wall fixedly connected with square tube of pivot frame, the inner wall sliding connection of square tube has the slider, the lateral wall fixedly connected with dead lever of slider, the one end fixedly connected with stopper of slider is kept away from to the dead lever, the stopper is the semicircle ring structure.

The effect that above-mentioned part reaches is: the rotation side leads to the position that is perpendicular angle with the anti-skidding cover terminal surface, and the stopper of two semicircular ring structures can form a stable ring structure this moment, embolias the inner wall of two rings with the screw body to make things convenient for spacing between anti-skidding cover and the screw body.

Preferably, the inside sliding connection of pivot frame has the bolt, the jack has been seted up on the surface of fixed block, the size of jack and the size looks adaptation of bolt on the fixed block.

The effect that above-mentioned part reaches is: the bolt is inserted into the inner wall of the jack, so that the fixing of the position between the rotating shaft frame and the fixing block is facilitated.

Preferably, the upper end of the bolt is fixedly connected with a round block, the surface of the bolt is sleeved with a first spring, and two ends of the first spring are fixedly connected with the round block and the fixing block respectively.

The effect that above-mentioned part reaches does: the setting of first spring has played the effect that the circular piece of pulling is moved to being close to the fixed block direction.

Preferably, the sliding block is of a T-shaped structure, and two second springs are fixedly connected to one side, close to each other, of the sliding block and the square tube.

The effect that above-mentioned part reaches is: the setting of second spring has played the effect that the drive slider pasted and leans on at square tube terminal surface position, has improved and has carried out spacing stability to the slider.

Preferably, the surface of the anti-skid sleeve is provided with a supporting device, the supporting device comprises two connecting plates, the two connecting plates are uniformly and fixedly connected to the surface of the anti-skid sleeve, and the driving rods are inserted into the two connecting plates through threads.

The effect that above-mentioned part reaches is: the driving rod is rotated, and the driving rod can be supported on the surface of the mounting position, so that the anti-skidding sleeve inside the mounting position can be conveniently pushed out.

Preferably, the inside sliding connection of connecting plate has the drive frame, the actuating lever rotates with the inside of drive frame and is connected.

The effect that above-mentioned part reaches is: the setting of the driving frame reduces the situation that the driving rod and the mounting position are twisted to cause damage of the mounting piece.

Preferably, one end of the driving rod far away from the driving frame is fixedly connected with a rotating block, and the driving rod is fixedly connected with the connecting plate through the rotating block.

The effect that above-mentioned part reaches does: the rotation block ground is arranged to facilitate the driving rotation of the driving rod structure.

Preferably, the surface of the driving frame is glued with a silica gel pad, and the silica gel pad is positioned on the surface of the driving frame far away from the driving rod.

The effect that above-mentioned part reaches is: the setting of silica gel pad has reduced the condition that the actuating frame caused extrusion wearing and tearing to the mounted position.

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

through setting up stop device, made things convenient for spacing to in the installation between screw body and the antiskid cover, improved the security to in the installation between antiskid cover and the inflation screw.

Drawings

Fig. 1 is a schematic perspective view of the present application.

Fig. 2 is a schematic perspective view of another perspective structure of the present application.

Fig. 3 is an enlarged view of fig. 2 at a in the present application.

Fig. 4 is an enlarged view of fig. 2 at B in the present application.

Fig. 5 is a schematic structural view of the support device in the present application.

Description of reference numerals:

1. a screw body; 2. an anti-slip sleeve; 3. a limiting device; 301. a square tube; 302. a slider; 303. a fixed block; 304. a fixing rod; 305. a limiting block; 306. a shaft bracket; 307. a circular block; 308. a jack; 309. a first spring; 310. a bolt; 311. a second spring; 4. a support device; 41. a connecting plate; 42. a drive rod; 43. a driving frame; 44. a silica gel pad; 45. and (6) turning the block.

Detailed Description

Referring to fig. 1, the embodiment discloses an expansion screw, which includes a screw body 1, an anti-slip sleeve 2 is sleeved on the surface of the screw body 1, a limiting device 3 is arranged on the surface of the anti-slip sleeve 2, and a supporting device 4 is arranged on the surface of the anti-slip sleeve 2.

Referring to fig. 2 and 3 and fig. 4, stop device 3 includes four fixed blocks 303, four fixed blocks 303 all with the lateral wall fixed connection of antiskid cover 2, two liang of a set of four fixed blocks 303, the inside of two fixed blocks 303 is rotated and is connected with pivot frame 306, the lateral wall fixedly connected with square tube 301 of pivot frame 306, the inner wall sliding connection of square tube 301 has slider 302, the lateral wall fixedly connected with dead lever 304 of slider 302, the one end fixedly connected with stopper 305 of slider 302 is kept away from to dead lever 304, stopper 305 is the semicircle ring structure. The square tube 301 is rotated to a position which is perpendicular to the end face of the anti-slip sleeve 2, the limiting blocks 305 of the two semicircular structures form a stable circular structure, the inner walls of the two circular rings are sleeved with the screw body 1, and therefore the limitation between the anti-slip sleeve 2 and the screw body 1 is facilitated.

A bolt 310 is connected to the inside of the rotating shaft frame 306 in a sliding mode, a jack 308 is formed in the surface of the fixing block 303, and the size of the jack 308 on the fixing block 303 is matched with the size of the bolt 310. The insertion of the pin 310 into the inner wall of the insertion hole 308 facilitates the fixing of the position between the rotating shaft bracket 306 and the fixing block 303. The upper end of the bolt 310 is fixedly connected with a circular block 307, the surface of the bolt 310 is sleeved with a first spring 309, and two ends of the first spring 309 are respectively and fixedly connected with the circular block 307 and the fixing block 303. The arrangement of the first spring 309 serves to pull the circular block 307 towards the fixed block 303. The slide block 302 is in a T-shaped structure, and two second springs 311 are fixedly connected to the side, close to each other, of the slide block 302 and the square tube 301. The second spring 311 is arranged to drive the slider 302 to abut against the end face of the square tube 301, so that the stability of limiting the slider 302 is improved.

Referring to fig. 1 and 5, the supporting device 4 includes two connecting plates 41, the two connecting plates 41 are uniformly and fixedly connected to the surface of the anti-slip cover 2, and the driving rod 42 is inserted into the two connecting plates 41 through a thread. By rotating the driving rod 42, the driving rod 42 will be supported on the surface of the mounting position, thereby facilitating the pushing out of the anti-slip cover 2 inside the mounting position. A driving frame 43 is slidably connected to the inside of the connecting plate 41, and the driving rod 42 is rotatably connected to the inside of the driving frame 43. The arrangement of the driving frame 43 reduces the damage of the installation piece caused by the torsion of the driving rod 42 and the installation position. The end of the driving rod 42 far away from the driving frame 43 is fixedly connected with a rotating block 45. The rotation block 45 is arranged to facilitate the driving rotation of the driving rod 42. The surface of the driving rack 43 is glued with a silica gel pad 44, and the silica gel pad 44 is located on the surface of the driving rack 43 far away from the driving rod 42. The arrangement of the silica gel pad 44 reduces the situation that the driving frame 43 causes extrusion abrasion to the installation position.

The working principle is as follows: the square tube 301 is rotated to a position which is perpendicular to the end face of the anti-slip sleeve 2, the round block 307 is loosened, the round block 307 can be driven by the elastic force of the first spring 309 on the clamping block to drive the bolt 310 to be inserted into the inner wall of the insertion hole 308, the limiting blocks 305 of the two semicircular structures can form a stable circular structure at the moment, the bolt body 1 is sleeved into the inner walls of the two circular rings, so that the limitation between the anti-slip sleeve 2 and the bolt body 1 is facilitated, the condition that the handheld bolt body 1 is low in limiting safety is reduced, the bolt body 1 is inserted into the anti-slip sleeve 2, the slide block 302 can be retracted on the inner wall of the square tube 301, after the slide block 302 in the square tube 301 is retracted to a certain position, the bolt 310 can be pulled out from the inner wall of the insertion hole 308 and the square tube 301 is rotated, the square tube 301 is rotated to a position which is perpendicular to the bolt, the mounting effect between the bolt body 1 and the anti-slip sleeve 2 is facilitated, the limiting device 3 is arranged, the limiting effect in the mounting process between the bolt body 1 and the anti-slip sleeve 2 is improved, and the safety in the mounting process between the anti-slip sleeve 2 and the anti-slip sleeve is improved.

When needs are dismantled mounting position's antiskid cover 2, rotatable commentaries on classics piece 45, commentaries on classics piece 45 can drive actuating lever 42 and rotate in the inside of connecting plate 41, actuating lever 42 can drive the carriage 43 and compress tightly the surface at the mounting position, thereby made things convenient for the release to the inside antiskid cover 2 of mounting position, and then made things convenient for the dismantlement to mounting position antiskid cover 2, setting up of silica gel pad 44 has reduced the condition that carriage 43 caused extrusion wear to mounting position, through setting up strutting arrangement 4, the removal to the inside antiskid cover 2 of mounting position has been made things convenient for, made things convenient for the reuse many times to antiskid cover 2.

Claims

1. Expansion screw comprising a screw body (1), characterized in that: the utility model discloses a bolt, including screw body (1), fixed block (303), fixed block (301), slide block (302), lateral wall sliding connection has slider (302), the lateral wall fixedly connected with dead lever (304) of slider (302), the one end fixedly connected with stopper (305) of slider (302) are kept away from to dead lever (304), stopper (305) are the semicircle ring structure, the surface of slide block (2) is equipped with stop device (3), stop device (3) are including four fixed block (303), four fixed block (303) all with the lateral wall fixed connection of slide block (2), four two liang of fixed block (303) are a set of, two the internal rotation of fixed block (303) is connected with pivot frame (306), the lateral wall fixedly connected with square tube (301) of pivot frame (306), the inner wall sliding connection of square tube (301) has slider (302), the lateral wall fixedly connected with dead lever (304) of slider (302).

2. An expansion screw according to claim 1, characterized in that: the inner part of the rotating shaft frame (306) is connected with a bolt (310) in a sliding mode, a jack (308) is formed in the surface of the fixing block (303), and the size of the jack (308) on the fixing block (303) is matched with the size of the bolt (310).

3. An expansion screw according to claim 2, wherein: the upper end of the bolt (310) is fixedly connected with a round block (307), a first spring (309) is sleeved on the surface of the bolt (310), and two ends of the first spring (309) are fixedly connected with the round block (307) and the fixing block (303) respectively.

4. The expansion screw of claim 1, wherein: the sliding block (302) is of a T-shaped structure, and two second springs (311) are fixedly connected to one side, close to each other, of the sliding block (302) and the square tube (301).

5. An expansion screw according to claim 1, characterized in that: the surface of the anti-skid sleeve (2) is provided with a supporting device (4), the supporting device (4) comprises two connecting plates (41), the two connecting plates (41) are uniformly and fixedly connected to the surface of the anti-skid sleeve (2), and a driving rod (42) is inserted into the two connecting plates (41) in a threaded manner.

6. An expansion screw according to claim 5, characterized in that: the inside sliding connection of connecting plate (41) has drive frame (43), drive lever (42) are connected with the inside rotation of drive frame (43).

7. The expansion screw of claim 6, wherein: one end of the driving rod (42) far away from the driving frame (43) is fixedly connected with a rotating block (45), and the driving rod (42) is fixedly connected with the connecting plate (41) through the rotating block (45).

8. An expansion screw according to claim 6, characterized in that: the surface of drive frame (43) is glued with silica gel pad (44), silica gel pad (44) are located drive frame (43) and are kept away from the surface of actuating lever (42).