CN210830036U

CN210830036U - Anti-loosening expansion screw

Info

Publication number: CN210830036U
Application number: CN201921370933.4U
Authority: CN
Inventors: 薛兵兵
Original assignee: Ruian Yipin Stainless Steel Product Co ltd
Current assignee: Ruian Yipin Stainless Steel Product Co ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-06-23
Anticipated expiration: 2029-08-22

Abstract

The utility model discloses an inflation screw that locking takes off comprises check lock lever, pipe box and locking dish, the check lock lever gomphosis is in the pipe box, the locking dish nestification is on the body of rod of check lock lever, be equipped with locking screw thread on the inner wall of pipe box, be equipped with the barb on the outer wall of pipe box, be equipped with the joint gap on the cover body of pipe box, check lock lever one end is equipped with the locking spiral shell head, the both ends of locking spiral shell head are equipped with the third through-hole, be equipped with the screw thread on the body of rod of check lock lever, the other end of check lock lever is equipped with the toper seat, toper seat and check lock lever threaded connection, be equipped with first through-hole, second through-hole and screw on the disk body of locking dish, the screw is. This inflation screw reaches the spacing fixed to the check lock lever through locking spiral shell head and locking dish fixed mode, and this mode can great reinforcing check lock lever locking fastness and stability avoid receiving the interference of external force.

Description

Anti-loosening expansion screw

Technical Field

The utility model relates to an expansion screw technical field specifically is an anti-loosening expansion screw.

Background

The expansion screw is generally a metal expansion screw, and the expansion screw is fixed by utilizing the wedge-shaped slope to promote expansion to generate friction bond force so as to achieve the fixing effect. One end of the screw is provided with threads, and the other end of the screw is provided with conicity. The outer surface of the wall is covered by an iron sheet (some steel pipes), a half of an iron sheet cylinder (steel pipe) is provided with a plurality of notches, the iron sheet cylinder (steel pipe) and the notches are plugged into a hole drilled on the wall together, then a nut is locked, the nut pulls a screw outwards to pull the taper into the iron sheet cylinder, the iron sheet cylinder is expanded and then is tightly fixed on the wall, and the wall is generally used for fastening protective guards, rain awnings, air conditioners and the like on materials such as cement, bricks and the like. However, it is not very reliable in its fixation and may come loose if the load is subjected to large shocks, so that it is not recommended to install ceiling fans and the like.

The lock lever and the lock dish of current inflation screw are independent locking structure, and when the screw received the vibration, it was not hard up to appear the screw rod very easily, caused the not thorough phenomenon of locking.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an anti-loosening inflation screw has solved the inflation screw that check lock lever and locking dish are independent locking structure, when receiving external force vibration, the screw is not hard up appears very easily in the check lock lever, causes the not thorough problem of locking.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an inflation screw that locking takes off, comprises check lock lever, pipe box and locking dish, the check lock lever gomphosis is in the pipe box, the locking dish nestification is on the body of rod of check lock lever, be equipped with locking screw thread on the inner wall of pipe box, be equipped with the barb on the outer wall of pipe box, be equipped with joint gap on the cover body of pipe box, check lock lever one end is equipped with the locking spiral shell head, the both ends of locking spiral shell head are equipped with the third through-hole, be equipped with the screw thread on the body of rod of check lock lever, the other end of check lock lever is equipped with the toper seat, toper seat and check lock lever threaded connection, be equipped with first through-hole, second through-hole and screw on the disk body of locking.

Preferably, the third through hole and the screw hole have the same size and the same corresponding position.

Preferably, rubber gaskets are arranged on the disc surfaces on the two sides of the locking disc, and the rubber gaskets correspond to the disc body of the locking disc in size and structure.

Preferably, the second through holes are uniformly distributed on the disc body of the locking disc, and the hole bodies of the second through holes are the same in size.

Preferably, the locking screw head is of a hexagonal structure, and the locking screw head and the locking rod are of an integrated structure.

(III) advantageous effects

The utility model provides an anti-loosening expansion screw. The method has the following beneficial effects:

this inflation screw passes through locking spiral shell head and locking dish fixed mode, reach the spacing fixed to the check lock lever, solved check lock lever and the independent locking mode of locking dish, when receiving the vibration, the locking lever appears the not hard up problem of the body of rod easily, when locking dish and drill way locking, will lock the spiral shell head again and be fixed in on the locking dish, fix the check lock lever, this mode, fastness and stability that can great reinforcing check lock lever locking avoid receiving the interference of external force.

Drawings

FIG. 1 is a schematic view of the overall connection structure of the present invention;

FIG. 2 is a schematic view of the structure of the locking plate of the present invention;

fig. 3 is a schematic view of the structure of the locking rod of the present invention.

In the figure, a locking rod-1, a pipe sleeve-2, a locking disc-3, a connecting gap-4, a barb-5, a conical seat-6, a first through hole-7, a second through hole-8, a screw hole-9, a locking screw head-10, a third through hole-11 and a thread-12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention provides a technical solution: the utility model provides an inflation screw that locking takes off, comprises check lock lever 1, pipe box 2 and locking dish 3, check lock lever 1 gomphosis in pipe box 2, locking dish 3 nestification is on the body of rod of check lock lever 1, be equipped with locking screw thread on the inner wall of pipe box 2, be equipped with barb 5 on the outer wall of pipe box 2, be equipped with connection gap 4 on the cover body of pipe box 2, 1 one end of check lock lever is equipped with locking spiral shell head 10, the both ends of locking spiral shell head 10 are equipped with third through-hole 11, be equipped with screw thread 12 on the body of rod of check lock lever 1, the other end of check lock lever 1 is equipped with conical seat 6, conical seat 6 and 1 threaded connection of check lock lever, be equipped with first through-hole 7, second through-hole 8 and screw 9 on the disk body of locking dish 3, screw 9 is located the both sides.

The third through hole 11 and the screw hole 9 have the same size and the same corresponding position. The third through hole corresponds to the screw hole in position, so that the locking screws can penetrate together, and the locking screw head is locked and fixed on the locking disc.

Rubber gaskets are arranged on the disc surfaces on the two sides of the locking disc 3, and the rubber gaskets correspond to the disc bodies of the locking disc 3 in size and structure. The rubber gasket provides locking performance and stability for the locking disc during limiting and locking.

The second through holes 8 are uniformly distributed on the disc body of the locking disc 3, and the hole bodies of the second through holes 8 are the same in size. And the through holes ensure that the locking disc can be fixed on the hole opening through the locking screws.

The locking screw head 10 is of a hexagonal structure, and the locking screw head 10 and the locking rod 1 are of an integrated structure. Hexagonal spiral shell head, the dismouting is comparatively convenient, and the wholeness of structure has been guaranteed to the locking spiral shell head and the check lock lever of integral structure.

The working principle is as follows: when the expansion screw is used, the pipe sleeve 2 is firstly embedded in the hole body, then the hole opening is drilled according to the position of the second through hole 8 on the locking disc 3, the position of the locking disc 3 is adjusted to ensure that the second through hole 8 corresponds to the position of the drilled hole, the locking disk 3 is fixed on the hole opening by the locking screw penetrating through the second through hole 8, the locking screw head 10 is rotated by the locking tool, so that the locking rod 1 rotates in the pipe sleeve 2, at the same time, the conical seat 5 will expand the pipe sleeve 2 between the connecting gaps 4 to make it tightly contact with the inner wall of the hole body, thereby locking the expansion screw, after locking, finely adjusting the locking screw head 10 again through the locking tool, so that the third through hole 11 on the locking screw head 10 corresponds to the screw hole 9 on the locking disc 3, and finally the locking screw head 10 is locked on the locking disc 3 by penetrating the third through hole 11 through the locking screw.

The utility model discloses a lock lever 1, pipe box 2, locking dish 3, connecting gap 4, barb 5, taper seat 6, first through-hole 7, second through-hole 8, screw 9, locking screw head 10, third through-hole 11, screw 12, the part is general standard component or the part that technical staff in this field knows, its structure and principle all can be known through the technical manual or through the conventional experimental method to this technical staff, the problem that the utility model solves is that the lock lever and locking dish are the expansion screw of independent locking structure, when receiving external force vibration, the lock lever very easily appears the screw and becomes flexible, causes the not thorough problem of locking, the utility model discloses through locking screw head 10 and locking dish 3 fixed mode, reach the spacing of fixing to lock lever 1, solved the independent locking mode of lock lever 1 and locking dish 3, when receiving the vibration, the lock lever 1 easily appears the body of rod not flexible problem, when locking dish 3 and drill way locking, will lock on the spiral shell head 10 is fixed in locking dish 3 again, fix locking lever 1, this mode can be great reinforcing locking lever 1 locking fastness and stability, avoids receiving the interference of external force.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an expansion screw that locking is taken off which characterized in that: comprises a locking rod (1), a pipe sleeve (2) and a locking disc (3), wherein the locking rod (1) is embedded in the pipe sleeve (2), the locking disc (3) is embedded on the rod body of the locking rod (1), locking threads are arranged on the inner wall of the pipe sleeve (2), barbs (5) are arranged on the outer wall of the pipe sleeve (2), a connecting gap (4) is arranged on the sleeve body of the pipe sleeve (2), a locking screw head (10) is arranged at one end of the locking rod (1), third through holes (11) are arranged at two ends of the locking screw head (10), threads (12) are arranged on the rod body of the locking rod (1), a conical seat (6) is arranged at the other end of the locking rod (1), the conical seat (6) is in threaded connection with the locking rod (1), a first through hole (7), a second through hole (8) and a screw hole (9) are arranged on the disc body of the locking disc (3), the screw holes (9) are positioned on two sides of the first through hole (7).

2. A locking expansion screw of claim 1, wherein: the third through hole (11) is the same as the screw hole (9) in size and in corresponding position.

3. A locking expansion screw of claim 1, wherein: rubber gaskets are arranged on the disc surfaces on the two sides of the locking disc (3), and the rubber gaskets correspond to the disc body of the locking disc (3) in size and structure.

4. A locking expansion screw of claim 1, wherein: the second through holes (8) are uniformly distributed on the disc body of the locking disc (3), and the hole bodies of the second through holes (8) are the same in size.

5. A locking expansion screw of claim 1, wherein: the locking screw head (10) is of a hexagonal structure, and the locking screw head (10) and the locking rod (1) are of an integrated structure.