CN220726788U

CN220726788U - Reinforced expansion bolt

Info

Publication number: CN220726788U
Application number: CN202321156326.4U
Authority: CN
Inventors: 孙玉丽
Original assignee: Hebei Xinli Fastener Co ltd
Current assignee: Hebei Xinli Fastener Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2024-04-05
Anticipated expiration: 2033-05-15

Abstract

The utility model discloses a reinforced expansion bolt, which comprises a bolt, a conical head connected with the bolt, a gasket, a nut and a metal sleeve, wherein the end part of the bolt is connected with a detachable connecting end, the bolt is inserted into the metal sleeve, expansion grooves which are symmetrically arranged are formed in the outer wall of the lower end of the metal sleeve, grooves are symmetrically formed in the outer wall of the conical head, a rotating plate is rotationally connected with the grooves, a compression spring is fixedly connected between the rotating plate and the inner wall of the grooves, and a flange matched with the rotating plate is integrally formed on the inner wall of the metal sleeve. According to the utility model, the rotating plate is arranged on the conical head at the lower end of the bolt, the flange is arranged on the inner wall of the metal sleeve, the rotating plate is prevented from moving downwards through the cooperation of the flange and the rotating plate, the bolt is prevented from moving downwards, the conical head and the metal sleeve are always kept in an extrusion state, the metal sleeve is stably connected with the wall surface, the detachable connecting end is arranged, and the excessive exposure of the end part of the bolt is avoided.

Description

Reinforced expansion bolt

Technical Field

The utility model relates to the technical field of expansion bolts, in particular to a reinforced expansion bolt.

Background

The expansion bolt is a special threaded connecting piece for fixing pipelines, brackets, supports or equipment on walls, floors and columns, when in use, holes with corresponding sizes are drilled on a fixed body by using an impact electric drill (hammer), then the bolts and the expansion pipes are arranged in the holes, and the bolts, the expansion pipes, the mounting pieces and the fixed body can be expanded into a whole by screwing nuts.

The big end extrusion metal sleeve of expansion bolts lower extreme is expanded and is connected with the wall, but does not have position mechanism between big end and the metal sleeve of expansion bolts lower extreme, appears not hard up condition easily when receiving vibrations in subsequent use, and then influences the stability of installation.

Disclosure of Invention

The utility model aims to solve the problem that the expansion bolt is easy to loose when being subjected to vibration in the use process, so that the stability of installation is affected.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a reinforcement type expansion bolts, includes the bolt, with bolted connection's conical head, packing ring, nut and metal cover, the end connection of bolt has detachable link, the bolt is inserted and is established in the metal cover, the expansion groove that the symmetry set up has been seted up on the lower extreme outer wall of metal cover, the outer wall symmetry of conical head is seted up flutedly, the recess internal rotation is connected with the swivel plate, fixedly connected with compression spring between the inner wall of swivel plate and recess, the inner wall integrated into one piece of metal cover has the flange with swivel plate assorted.

Preferably, the outer wall of the connecting end is provided with threads matched with the outer wall of the bolt.

Preferably, the end part of the connecting end is integrally formed with a plug end, the upper end of the bolt is provided with a socket matched with the plug end, and a detachable mechanism is arranged between the plug end and the socket.

Preferably, the detachable mechanism comprises a cavity which is formed by connecting the connecting end with the inside of the plugging end, a sliding groove which is communicated with the cavity is formed in the outer wall of the connecting end, a sliding plate with the end part located in the cavity is arranged in the sliding groove in a sliding mode, a through groove which is communicated with the cavity is formed in the outer wall of the plugging end, a connecting rod is inserted in the through groove in a sliding mode, a connecting port which is matched with the connecting rod is formed in the inner wall of the plug opening, a connecting spring is fixedly connected between the end part of the connecting rod and the inner wall of the cavity, a telescopic spring is fixedly arranged between the end part of the sliding plate and the inner wall of the cavity, an inclined surface is arranged on the outer wall of the sliding plate, and a connecting column which is contacted with the inclined surface is fixedly arranged on the outer wall of the connecting rod.

Preferably, the ends of the connecting rod and the connecting column are arc-shaped.

Compared with the prior art, the reinforced expansion bolt has the advantages that:

in summary, according to the utility model, the rotating plate is arranged on the conical head at the lower end of the bolt, the flange is arranged on the inner wall of the metal sleeve, the rotating plate is prevented from moving downwards through the cooperation of the flange and the rotating plate, the bolt is prevented from moving downwards, the conical head and the metal sleeve are always kept in an extrusion state, the metal sleeve is stably connected with the wall surface, and the detachable connecting end is arranged, so that the end part of the bolt is prevented from being exposed too much.

Drawings

FIG. 1 is a schematic view of the external structure of a reinforced expansion bolt according to the present utility model;

FIG. 2 is a view showing the joint of the connecting end and the bolt in the reinforced expansion bolt according to the present utility model;

FIG. 3 is a schematic view of the joint between the slide plate and the connecting rod in the reinforced expansion bolt according to the present utility model;

fig. 4 is a schematic structural view of an inner wall of a metal sleeve in a reinforced expansion bolt according to the present utility model.

In the figure: 1 metal sleeve, 2 connecting end, 3 bolt, 4 conical head, 5 washer, 6 nut, 7 flange, 8 spout, 9 slide, 10 grafting end, 11 connecting rod, 12 expansion tank, 13 recess, 14 swivel plate, 15 spliced pole, 16 connecting spring, 17 expansion spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, a reinforced expansion bolt comprises a bolt 3, a conical head 4 connected with the bolt 3, a gasket 5, a nut 6 and a metal sleeve 1, wherein the end part of the bolt 3 is connected with a detachable connecting end 2, the bolt 3 is inserted into the metal sleeve 1, an expansion groove 12 symmetrically arranged is formed in the outer wall of the lower end of the metal sleeve 1, threads matched with the outer wall of the bolt 3 are formed in the outer wall of the connecting end 2, the bolt 3 is connected with the connecting end 2, the whole body is inserted into a hole formed in a wall surface, the connecting end 2 and the bolt 3 are driven to move outwards along with the rotation of the nut 6, and the conical head 4 moves outwards to press the end part of the metal sleeve 1 to expand and tightly abut against the inner wall of the hole, so that the whole body and the hole are connected and fixed.

The outer wall symmetry of cone 4 has offered recess 13, recess 13 internal rotation is connected with rotor plate 14, fixedly connected with compression spring between rotor plate 14 and the inner wall of recess 13, the inner wall integrated into one piece of metal cover 1 has flange 7 with rotor plate 14 assorted, in the in-process that cone 4 moved up, the edge extrusion rotor plate 14 of metal cover 1 contracts in recess 13, when cone 4 continuously moved up to the tip of rotor plate 14 be located between two flanges 7, rotor plate 14 pops out outside under compression spring's elastic force, until the tip of rotor plate 14 is located between flange 7, and then block rotor plate 14, flange 7 can drag rotor plate 14 and rotate outside when making bolt 3 unable to move down, and metal cover 1 can restrict rotor plate 14 and rotate outside, consequently can prevent bolt 3 to move down, when bolt 3 moves up, flange 7 can extrude rotor plate 14 and move in recess 13, consequently the upward movement of bolt 3 is unrestricted), promptly, guaranteed that bolt 3 and metal cover 1 between the whole stability of understanding of inflation has been guaranteed.

The tip integrated into one piece of link 2 has grafting end 10, the upper end of bolt 3 has been seted up with grafting end 10 assorted socket, be equipped with detachable mechanism between grafting end 10 and the socket, detachable mechanism is including seting up the cavity that is linked together in link 2 and grafting end 10 inside, spout 8 with cavity intercommunication has been seted up to the outer wall of link 2, sliding in spout 8 is provided with the slide 9 that the tip is located the cavity, the logical groove with cavity intercommunication has been seted up to the outer wall of grafting end 10, sliding in logical groove is inserted and is equipped with connecting rod 11, set up on the inner wall of socket with connecting rod 11 assorted connector, fixedly connected with coupling spring 16 between the tip of connecting rod 11 and the cavity inner wall, be fixed with telescopic spring 17 between the tip of slide 9 and the cavity inner wall, the outer wall of slide 9 is provided with the inclined plane, the outer wall of connecting rod 11 is fixed with the spliced pole 15 that contacts with the inclined plane, the tip of connecting rod 11 and spliced pole 15 all is the arc setting this moment, nut 6 rotates and drives link 2 and moves up until nut 6 and bolt 3 connection, the metal sleeve 1 has been accomplished with the wall connection, the downside promotes the logical groove with cavity intercommunication, the logical groove 9, the connecting rod 2 has been kept away from the inclined plane 2 of connecting rod 2 has been further been avoided simultaneously to the tip connection 11 to the tip connection 15, the tip connection is broken away from the end connection of connecting rod 2, the tip connection end is realized simultaneously, the tip connection end is not has been removed from the end connection end 3.

Further, the above-described fixed connection is to be understood in a broad sense, unless explicitly stated and defined otherwise, as being, for example, welded, glued, or integrally formed, as is well known to those skilled in the art.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a reinforcement type expansion bolts, includes bolt (3), conical head (4) that are connected with bolt (3), packing ring (5), nut (6) and metal cover (1), its characterized in that, end connection of bolt (3) has detachable link (2), bolt (3) are inserted and are established in metal cover (1), expansion groove (12) that the symmetry set up have been seted up on the lower extreme outer wall of metal cover (1), recess (13) have been seted up to the outer wall symmetry of conical head (4), recess (13) internal rotation is connected with swivel plate (14), fixedly connected with compression spring between the inner wall of swivel plate (14) and recess (13), the inner wall integrated into one piece of metal cover (1) have flange (7) with swivel plate (14) assorted.

2. A reinforced expansion bolt according to claim 1, wherein the outer wall of the connecting end (2) is provided with a thread matching the outer wall of the bolt (3).

3. The reinforced expansion bolt according to claim 1, wherein the end part of the connecting end (2) is integrally formed with a plug end (10), a socket matched with the plug end (10) is formed at the upper end of the bolt (3), and a detachable mechanism is arranged between the plug end (10) and the socket.

4. A reinforced expansion bolt according to claim 3, characterized in that the detachable mechanism comprises a cavity which is formed inside the connecting end (2) and the inserting end (10) and is communicated with the cavity, a sliding groove (8) which is communicated with the cavity is formed in the outer wall of the connecting end (2), a sliding plate (9) with the end part positioned in the cavity is arranged in the sliding groove (8), a through groove which is communicated with the cavity is formed in the outer wall of the inserting end (10), a connecting rod (11) is inserted in the through groove, a connecting port which is matched with the connecting rod (11) is formed in the inner wall of the inserting port, a connecting spring (16) is fixedly connected between the end part of the connecting rod (11) and the inner wall of the cavity, a telescopic spring (17) is fixedly arranged between the end part of the sliding plate (9) and the inner wall of the cavity, an inclined plane is formed in the outer wall of the sliding plate (9), and a connecting column (15) which is in contact with the inclined plane is fixedly arranged on the outer wall of the connecting rod (11).

5. A reinforced expansion bolt according to claim 4, wherein the ends of the connecting rod (11) and the connecting post (15) are each arranged in an arc.