CN220415937U - Anti-loosening device - Google Patents

Abstract

The utility model provides an anti-loosening device, which relates to the technical field of connecting and fixing parts and comprises a first pipe fitting and a second pipe fitting, wherein the end faces of the first pipe fitting and the end faces of the second pipe fitting are attached. According to the utility model, the bolt is pulled downwards to separate from the meshing block, at the moment, the meshing block is extruded by the meshing teeth on the first connecting piece to push the first spring to move outwards, then the first spring pushes the meshing block to move towards the meshing teeth to complete meshing, then the bolt is loosened, the second spring is matched with the limiting ring to push the bolt upwards to be embedded into the meshing block, at the moment, the first connecting piece is limited by the meshing block to prevent the bolt from moving upwards, the meshing block is limited by the bolt to prevent the bolt from moving leftwards and rightwards, and further the fixation of the first pipe fitting and the second pipe fitting is completed, and good firmness is still maintained in the shaking and vibrating process, so that the first pipe fitting and the second pipe fitting cannot be loosened.

Description

Anti-loosening device

Technical Field

The utility model relates to the technical field of connecting and fixing parts, in particular to an anti-loosening device.

Background

The fastener is a kind of mechanical part used for fastening connection and widely applied, in life, tubular parts often appear, and in order to prolong the length of the tubular parts, two or more tubular parts are connected and combined by using a threaded sleeve, so that the purpose of prolonging the length is achieved, and in order to strengthen the connection firmness, the fastening hoop is increased or the fastening part is reinforced by a fastener such as an embedded screw.

At present, the tubular part is when connecting, the thread bush connected mode of ordinary use, its simple structure, convenient operation, but the tubular part receives to rock and shake the time thread bush and take place in the thread groove easily to lead to taking off, and use fastening hoop or embedded bolt to consolidate at tubular part outside, there is the inconvenient problem of dismouting, and use more bolts, the bolt can take place to remove in the inslot when receiving to rock and shake, and then lead to taking off, consequently, in order to improve the connection fastness of daily tubular part, we propose a novel locking device.

Disclosure of Invention

The utility model mainly provides a loosening prevention device which improves the connection firmness of tubular parts and is not easy to loosen.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a locking device that takes off, includes first pipe fitting and second pipe fitting, the terminal surface of first pipe fitting and second pipe fitting is laminated mutually, threaded connection has the thread bush between the surface of first pipe fitting and second pipe fitting, the surface of first pipe fitting is close to the first connecting piece of the position symmetry fixedly connected with of second pipe fitting, the surface of first connecting piece is provided with the meshing tooth, the surface of second pipe fitting is close to the position symmetry fixedly connected with second connecting piece of first pipe fitting, the top of second connecting piece is provided with the meshing piece, the surface and the meshing tooth meshing of meshing piece are connected, one side outward appearance symmetry fixedly connected with connecting rod of meshing piece, the surface slip of connecting rod runs through the surface of second connecting piece and extends to the outside, the surface cover of connecting rod is equipped with first spring, first spring is located between the interior surface wall of meshing piece 32 and second connecting piece 3.

Further, baffle plates are symmetrically and fixedly connected to the outer surfaces of the front side and the rear side of the second connecting piece, and connecting rods are fixedly connected between the end faces of the two connecting rods.

Further, the engaging pieces and the front and rear outer surfaces of the first connecting member are fitted to the outer surfaces of the two shutters.

Further, the bottom fixedly connected with L type piece of second connecting piece, the bottom slip of L type piece is provided with the bolt throughout.

Further, a limiting ring is fixedly connected to the outer surface of the bolt at the bottom of the second connecting piece, and a second spring is fixedly connected between the limiting ring and the inner surface wall of the L-shaped block.

Further, the outer surface of the bolt penetrates through the outer surface of the second connecting piece in a sliding mode, and the top end of the bolt is connected with the meshing block in a sliding embedded mode.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, the bolt is pulled downwards to separate from the meshing block, at the moment, the meshing block is extruded by the meshing teeth on the first connecting piece to push the first spring to move outwards, then the first spring pushes the meshing block to move towards the meshing teeth to complete meshing, then the bolt is loosened, the second spring is matched with the limiting ring to push the bolt upwards to be embedded into the meshing block, at the moment, the first connecting piece is limited by the meshing block to prevent the bolt from moving upwards, the meshing block is limited by the bolt to prevent the bolt from moving leftwards and rightwards, and further the fixation of the first pipe fitting and the second pipe fitting is completed, and good firmness is still maintained in the shaking and vibrating process, so that the first pipe fitting and the second pipe fitting cannot be loosened.

2. According to the utility model, when the first pipe fitting and the second pipe fitting are required to be separated, the threaded sleeve is rotated and loosened, then the bolt is pulled downwards to release the limit of the meshing block, the connecting rod is pulled to drive the connecting rod and the meshing block to be far away from the meshing teeth, and the limit of the first connecting piece is released, so that the first pipe fitting and the second pipe fitting are separated, the whole assembly and disassembly are simple, more time can be saved under the condition of ensuring the firmness, and the practicability is greatly improved.

Drawings

Fig. 1 is a perspective view showing an anti-loosening device according to the present utility model;

FIG. 2 is an expanded view of an anti-loosening device according to the present utility model;

fig. 3 is a schematic view of a part of a structure of an anti-loosening device according to the present utility model.

Legend description: 1. a first pipe fitting; 11. a second pipe fitting; 12. a thread sleeve; 2. a first connector; 21. meshing teeth; 3. a second connector; 31. a baffle; 32. a meshing block; 4. a connecting rod; 41. a first spring; 42. a connecting rod; 5. an L-shaped block; 51. a plug pin; 52. a limiting ring; 53. and a second spring.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

In embodiment 1, as shown in fig. 1-3, the utility model provides an anti-loosening device, which comprises a first pipe fitting 1 and a second pipe fitting 11, wherein end surfaces of the first pipe fitting 1 and the second pipe fitting 11 are attached, a threaded sleeve 12 is connected between the outer surfaces of the first pipe fitting 1 and the second pipe fitting 11 in a threaded manner, a first connecting piece 2 is symmetrically and fixedly connected to the outer surface of the first pipe fitting 1 near the position of the second pipe fitting 11, an engaging tooth 21 is arranged on the outer surface of the first connecting piece 2, a second connecting piece 3 is symmetrically and fixedly connected to the outer surface of the second pipe fitting 11 near the position of the first pipe fitting 1, an engaging block 32 is arranged on the top of the second connecting piece 3, the outer surface of the engaging block 32 is in engaged connection with the engaging tooth 21, a connecting rod 4 is fixedly connected to one side outer surface of the engaging block 32, the outer surface of the connecting rod 4 slides through the outer surface of the second connecting piece 3 and extends to the outer side, a first spring 41 is sleeved on the outer surface of the connecting rod 4, the first spring 41 is positioned between the engaging block 32 and the inner surface of the second connecting piece 3, a baffle plate 4 is fixedly connected to the front and rear outer surface of the second connecting piece 3, and a connecting rod 42 is fixedly connected between two connecting rods 42.

The effect that its whole embodiment 1 reaches is, when needs are connected first pipe fitting 1 and second pipe fitting 11, through pasting the terminal surface of first pipe fitting 1 with the terminal surface of second pipe fitting 11, then rotate the thread bush 12 of second pipe fitting 11 surface upwards, the effect of fixing first pipe fitting 1 and second pipe fitting 11 threaded connection has been played, the in-process of pasting first pipe fitting 1 and second pipe fitting 11 terminal surface, first connecting piece 2 and second connecting piece 3 are close to each other, pulling down bolt 51 makes it accomplish the separation with meshing piece 32, at this moment, meshing tooth 21 on first connecting piece 2 extrudees meshing piece 32 makes it push first spring 41 back follow first spring 41 outside and remove, then first spring 41 promotes meshing piece 32 to meshing tooth 21 direction and then accomplish the meshing, second spring 53 cooperates spacing ring 52 and upwards promotes bolt 51, make it imbed in meshing piece 32, at this moment, meshing piece 32 limits first connecting piece 2, make it unable to reciprocate, 51 limits meshing piece 32, make it move about, make it take place to shake well to the second pipe fitting 1 and still can's firm process of taking off, and shake can't take place, still keep the firm shake in the process.

In embodiment 2, as shown in fig. 1-3, the outer surfaces of the front and rear sides of the engaging block 32 and the first connecting piece 2 are attached to the outer surfaces of the two baffles 31, the bottom of the second connecting piece 3 is fixedly connected with the bottom of the L-shaped block 5,L type block 5, a plug pin 51 is slidably inserted through the bottom of the L-shaped block, the outer surface of the plug pin 51 is fixedly connected with a limiting ring 52 near the bottom of the second connecting piece 3, a second spring 53 is fixedly connected between the limiting ring 52 and the inner surface wall of the L-shaped block 5, the outer surface of the plug pin 51 slidably inserted through the outer surface of the second connecting piece 3, and the top end of the plug pin 51 is slidably inserted into and connected with the engaging block 32.

The effect that its whole embodiment 2 reached is, when needs make first pipe fitting 1 and the separation of second pipe fitting 11, rotates and loosens thread bush 12, then pulls down bolt 51 and releases the spacing to engagement piece 32, drives connecting rod 4 and engagement piece 32 and keep away from engagement tooth 21 at pulling connecting rod 42, releases the restriction to first connecting piece 2 to accomplish the separation of first pipe fitting 1 and second pipe fitting 11, whole dismouting is simple, can practice thrift more time under the circumstances of guaranteeing the fastness, and the practicality obtains great promotion.

Working principle: when the first pipe fitting 1 and the second pipe fitting 11 are required to be connected, the threaded sleeve 12 on the outer surface of the second pipe fitting 11 is rotated upwards after the end surface of the first pipe fitting 1 is tightly attached to the end surface of the second pipe fitting 11, so that the first pipe fitting 1 and the second pipe fitting 11 are fixedly connected in a threaded manner, the first connecting piece 2 and the second connecting piece 3 are mutually close in the process of tightly attaching the end surfaces of the first pipe fitting 1 and the second pipe fitting 11, the bolt 51 is pulled downwards to separate from the engagement block 32, at the moment, the engagement teeth 21 on the first connecting piece 2 press the engagement block 32 to push the first spring 41 to move outwards, then the first spring 41 pushes the engagement block 32 to move towards the engagement teeth 21 to complete engagement, the bolt 51 is released, the second spring 53 is matched with the limit ring 52 to push the bolt 51 upwards, the first connecting piece 2 is limited by the engagement block 32 at the moment, the first connecting piece 2 cannot move upwards, the engagement block 32 cannot be limited by the bolt 51, the first pipe fitting 1 and the second pipe fitting 11 cannot be moved left and right, the first pipe fitting 1 and the second pipe fitting 11 are fixed, good firmness is still kept in the shaking and vibrating process, loosening cannot occur, when the first pipe fitting 1 and the second pipe fitting 11 are required to be separated, the threaded sleeve 12 is rotated and loosened, then the bolt 51 is pulled downwards to release the limit of the engagement block 32, the connecting rod 4 and the engagement block 32 are driven by the pulling connecting rod 42 to be far away from the engagement teeth 21, the limit of the first connecting piece 2 is released, the separation of the first pipe fitting 1 and the second pipe fitting 11 is completed, the whole disassembly is simple, more time can be saved under the condition of guaranteeing the firmness, and the practicability is greatly improved.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (6)

1. An anti-loosening device comprises a first pipe fitting (1) and a second pipe fitting (11), and is characterized in that: the end face of first pipe fitting (1) and second pipe fitting (11) laminating mutually, threaded connection has thread bush (12) between the surface of first pipe fitting (1) and second pipe fitting (11), the surface of first pipe fitting (1) is close to the position symmetry fixedly connected with first connecting piece (2) of second pipe fitting (11), the surface of first connecting piece (2) is provided with meshing tooth (21), the surface of second pipe fitting (11) is close to the position symmetry fixedly connected with second connecting piece (3) of first pipe fitting (1), the top of second connecting piece (3) is provided with meshing piece (32), the surface and the meshing tooth (21) meshing of meshing piece (32), one side outward appearance surface symmetry fixedly connected with connecting rod (4) of meshing piece (32), the surface slip of connecting rod (4) runs through the surface of second connecting piece (3) and extends to the outside, the surface cover of connecting rod (4) is equipped with first spring (41), first spring (41) are located between meshing piece (32) and the interior wall of second connecting piece (3).

2. The anti-loosening device of claim 1, wherein: baffle (31) are symmetrically and fixedly connected to the outer surfaces of the front side and the rear side of the second connecting piece (3), and connecting rods (42) are fixedly connected between the end faces of the two connecting rods (4).

3. The anti-loosening device of claim 1, wherein: the front and rear outer surfaces of the engagement block (32) and the first connecting piece (2) are attached to the outer surfaces of the two baffles (31).

4. The anti-loosening device of claim 1, wherein: the bottom of second connecting piece (3) fixedly connected with L type piece (5), the bottom slip of L type piece (5) is provided with bolt (51) throughout.

5. The anti-loosening device of claim 4, wherein: the outer surface of the bolt (51) is fixedly connected with a limiting ring (52) at the bottom of the second connecting piece (3), and a second spring (53) is fixedly connected between the limiting ring (52) and the inner surface wall of the L-shaped block (5).

6. The anti-loosening device of claim 4, wherein: the outer surface of the bolt (51) penetrates through the outer surface of the second connecting piece (3) in a sliding mode, and the top end of the bolt (51) is connected with the meshing block (32) in a sliding embedded mode.