CN216895291U

CN216895291U - Anti-drop bolt structure

Info

Publication number: CN216895291U
Application number: CN202220204281.2U
Authority: CN
Inventors: 王振生
Original assignee: Huizhou Shenghu Fasteners Technology Co ltd
Current assignee: Huizhou Shenghu Fasteners Technology Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-07-05
Anticipated expiration: 2032-01-25

Abstract

The anti-falling bolt structure comprises a bolt body and a clamping assembly, wherein the clamping assembly comprises a locking nut, a clamping nut and a clamping ring, the bolt body is in bolt connection with the locking nut, a clamping groove and a clamping hole are formed in the locking nut, the clamping hole is communicated with the clamping groove, the clamping ring is accommodated in the clamping groove, a clamping block is arranged on the clamping ring, and when the clamping nut is in bolt connection with the locking nut, the clamping ring is pushed to move the clamping block to penetrate through the clamping hole, so that the clamping block is clamped with the bolt body. So, when pushing away a joint ring through the joint nut and being close to the diapire in joint groove, can pass the joint hole when joint piece atress warp, and then the butt realizes on the bolt that the joint is fixed, can effectively avoid appearing becoming flexible droing between lock nut and the bolt.

Description

Anti-drop bolt structure

Technical Field

The utility model relates to the field of bolts, in particular to an anti-falling bolt structure.

Background

A bolt is a component that fixedly connects at least two separate parts. The bolt is widely applied to various fields, such as various household appliances, automobiles and the like. Bolts are typically used in conjunction with nuts.

However, the conventional bolt cannot be applied to an environment with a vibration factor, and under continuous or intermittent vibration, the conventional bolt has the problem of vibration loosening and then failure. Therefore, how to prevent the bolt from being loosened by vibration is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides an anti-falling bolt structure which can be applied to a vibration environment and can effectively prevent vibration from loosening.

The purpose of the utility model is realized by the following technical scheme:

an anti-drop bolt structure comprising:

a plug body; and

the clamping assembly comprises a locking nut, a clamping nut and a clamping ring, the bolt body is screwed on the locking nut, a clamping groove and a clamping hole are formed in the locking nut, the clamping hole is communicated with the clamping groove, the clamping ring is accommodated in the clamping groove, a clamping block is arranged on the clamping ring, and when the clamping nut is screwed on the locking nut, the clamping ring drives the clamping ring to penetrate through the clamping hole so as to enable the clamping block to be clamped with the bolt body.

In one embodiment, the plurality of clamping holes are formed, each clamping hole is communicated with the clamping groove, the plurality of clamping blocks are arranged, and each clamping block is correspondingly arranged in each clamping hole in a penetrating mode one by one to be clamped on the bolt body together.

In one embodiment, the number of the clamping blocks is four, and a space is arranged between every two clamping blocks.

In one embodiment, a first external thread is formed on an outer side wall of the bolt body, a first internal thread is formed on the lock nut, and the first external thread is screwed with the first internal thread.

In one embodiment, the outer side wall of the bolt body is further provided with a clamping groove, and the extending direction of the clamping groove is the same as the axial direction of the bolt body.

In one embodiment, the plurality of the blocking grooves are formed, and the blocking grooves are sequentially and adjacently arranged.

In one embodiment, one end of the clamping block, which is far away from the clamping ring, is provided with clamping teeth, and the clamping block is used for driving the clamping teeth to abut against the inner side wall of the clamping groove.

In one embodiment, the snap ring has a ring-shaped structure.

In one embodiment, an included angle between the extending direction of the clamping block and the axial direction of the clamping ring is 28-32 degrees.

In one embodiment, the clamping ring and the clamping block are of an integrally formed structure.

Compared with the prior art, the utility model has at least the following advantages:

the anti-falling bolt structure comprises a bolt body and a clamping assembly, wherein the clamping assembly comprises a locking nut, a clamping nut and a clamping ring, the bolt body is screwed on the locking nut, a clamping groove and a clamping hole are formed in the locking nut, the clamping hole is communicated with the clamping groove, the clamping ring is accommodated in the clamping groove, a clamping block is arranged on the clamping ring, and when the clamping nut is screwed on the locking nut, the clamping ring is pushed to drive the clamping block to penetrate through the clamping hole, so that the clamping block is clamped with the bolt body. So, when pushing away a joint ring through the joint nut and being close to the diapire in joint groove, can pass the joint hole when joint piece atress warp, and then the butt realizes on the bolt that the joint is fixed, can effectively avoid appearing not hard up droing between lock nut and the bolt.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an anti-drop bolt structure according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the anti-separation bolt shown in FIG. 1;

FIG. 3 is a schematic structural view of a lock nut according to an embodiment of the present invention;

FIG. 4 is a partial schematic view of a key according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a snap ring and a snap block according to an embodiment of the utility model.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings.

Referring to fig. 1 to 3, an anti-releasing bolt structure 10 includes a bolt body 100 and a clamping assembly 200, the clamping assembly 200 includes a lock nut 210, a clamping nut 220 and a clamping ring 230, the bolt body 100 is screwed on the lock nut 210, the lock nut 210 is provided with a clamping groove 211 and a clamping hole 212, the clamping hole 212 is communicated with the clamping groove 211, the clamping ring 230 is accommodated in the clamping groove 211, the clamping ring 230 is provided with a clamping block 240, when the clamping nut 220 is screwed on the lock nut 210, the clamping ring 230 is pushed to drive the clamping block 240 to pass through the clamping hole 212, so that the clamping block 240 is clamped with the bolt body 100.

It should be noted that the bolt body 100 is used for realizing a locking function when being screwed with the locking nut 210. The locking nut 210 is provided with a locking groove 211 and a locking hole 212, wherein the locking groove 211 is located on a side surface of the locking nut 210 away from the head of the bolt 100. In one embodiment, the engaging groove 211 is a circular ring. The catching hole 212 communicates with the catching groove 211. The snap ring 230 is received in the snap groove 211, and the snap blocks 240 on the snap ring 230 are disposed opposite to the snap holes 212. In one embodiment, the snap ring 230 is also of a ring-shaped configuration. When the snap nut 220 is screwed into the snap groove 211 of the lock nut 210. The snap nut 220 pushes the snap ring 230 against the bottom wall of the snap groove 211. And the clamping block 240 is supported and limited by the bottom wall of the clamping groove 211. The clamping block 240 is forced to bend, so that the clamping block 240 passes through the clamping hole 212 and is finally clamped and fixed with the bolt body 100. So, through joint nut 220 and joint ring 230, joint piece 240 mating reaction for bolt 100 realizes the joint with lock nut 210 and fixes, can prevent that lock nut 210 from loosening the landing from bolt 100. It should be noted that the anti-releasing bolt structure 10 of the present application is an irreversible structure, that is, when the clamping ring 230 is pressed into the clamping groove 211 by the clamping nut 220, since the clamping block 240 is deformed by a force, even if the clamping nut 220 is unscrewed from the locking nut 210, the clamping block 240 will be maintained in a state of passing through the clamping hole 212 and being clamped to the bolt 100, that is, the locking nut 210 and the bolt 100 are maintained in a locked state, and if the locking nut 210 and the bolt 100 need to be detached, only the clamping block 240 can be forcibly destroyed by a force. Therefore, the anti-drop bolt structure 10 of the present application has certain anti-theft and anti-counterfeit functions.

Referring to fig. 1 and fig. 3, in an embodiment, a plurality of clamping holes 212 are formed, each clamping hole 212 is communicated with the clamping groove 211, a plurality of clamping blocks 240 are provided, and each clamping block 240 is correspondingly inserted into each clamping hole 212 one by one to be clamped on the bolt 100 together.

It should be noted that, in order to improve the clamping stability between the lock nut 210 and the plug 100, a plurality of clamping blocks 240 are provided, and each clamping block 240 is distributed on the clamping ring 230 around the axis of the clamping ring 230. When joint ring 230 is close to the diapire of joint groove 211, make each joint piece 240 all atress warp to the lateral wall all around of the solid fixed key body 100 of joint, thereby can improve the stability between key body 100 and lock nut 210, prevent that the two from taking off, in an embodiment, joint piece 240 is provided with four, is provided with the interval between each joint piece 240. Correspondingly, four clamping holes 212 are also provided, and four clamping blocks 240 are used for clamping the bolt body 100 by co-extrusion after passing through the four clamping holes 212 in a one-to-one correspondence manner, so that the bolt body 100 and the lock nut 210 can be clamped and fixed.

In one embodiment, the outer sidewall of the bolt 100 is provided with a first external thread, and the lock nut 210 is provided with a first internal thread, which is screwed with the first internal thread.

It should be noted that a through hole is formed in the lock nut 210, the first internal thread is located in the through hole, and the first external thread is screwed with the first internal thread in a matching manner, so that the bolt body 100 and the lock nut 210 are screwed and fixed. Further, in an embodiment, the clamping groove 211 is provided with a second internal thread, the clamping nut 220 is provided with a second external thread, and the second external thread is adapted to the first internal thread for screwing, so that the clamping nut 220 and the locking nut 210 are screwed and fixed.

Referring to fig. 4, in an embodiment, the outer sidewall of the bolt body 100 is further provided with a retaining groove 110, and an extending direction of the retaining groove 110 is the same as the axial direction of the bolt body 100.

It should be noted that the retaining groove 110 is located on the outer side wall of the bolt body 100, and the extending direction of the retaining groove 110 is the same as the axial direction of the bolt body 100. It should be noted that the locking slot 110 penetrates through the first external thread, so that when the locking block 240 deforms under a force and penetrates through the locking hole 212, the locking block 240 is partially received in the locking slot 110, that is, the locking block 240 abuts against the inner sidewall of the locking slot 110, so that the locking block 240 is locked and fixed with the bolt 100. In an embodiment, the plurality of clamping grooves 110 are formed, each clamping groove 110 is sequentially and adjacently disposed, it should be noted that, each clamping groove 110 is sequentially arranged, so as to ensure that when the clamping ring 230 drives each clamping block 240 to clamp the bolt body 100, the clamping block 240 is accommodated in any one clamping groove 110 to realize clamping, that is, to ensure that the locking nut 210 and the bolt body 100 can be reliably clamped and fixed. In one embodiment, the clamping grooves 110 are arranged on the outer side wall of one fourth of the bolt body 100, and the four clamping blocks 240 are provided, and any two adjacent clamping blocks 240 are spaced by 90 °, so that the clamping grooves 110 are arranged on the outer side wall of one fourth of the bolt body 100, so that no matter the locking nut 210 is screwed on any position of the bolt body 100, one clamping block 240 can be ensured to abut against the inner side wall of one clamping groove 110 to realize clamping fixation.

Referring to fig. 1, in an embodiment, an end of the engaging block 240 away from the engaging ring 230 is provided with an engaging tooth 250, and the engaging block 240 is used for driving the engaging tooth 250 to abut against an inner sidewall of the engaging groove 110.

It should be noted that the clamping teeth 250 are sharp structures, and the clamping teeth 250 are disposed on the clamping block 240, so that the clamping teeth 250 can be reliably received and abut against the inner side wall of the clamping groove 110 to realize clamping fixation.

Referring to fig. 5, in an embodiment, an included angle D between an extending direction of the clamping block 240 and an axial direction of the clamping ring 230 is 28 ° to 32 °. It should be noted that, in order to make the clamping ring 230 close to the bottom wall of the clamping groove 211, the clamping block 240 can be supported by the bottom wall of the clamping groove 211 to deform, so that the clamping block 240 is set to have a certain included angle with the axis of the clamping ring 230. For example, the extending direction of the snap block 240 may be at an angle of 28 °, or 29 °, or 30 °, or 31 °, or 32 ° to the axial direction of the snap ring 230.

In one embodiment, the clip ring 230 and the clip block 240 are integrally formed. It should be noted that, the clamping block 240 and the clamping ring 230 are integrally formed, so that sufficient structural strength between the clamping block 240 and the clamping ring 230 can be ensured. Avoid the joint block 240 to break when deformed by stress.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An anti-drop bolt structure, characterized by, includes:

a plug body; and

2. The anti-loosening bolt structure according to claim 1, wherein a plurality of clamping holes are formed in the clamping body, each clamping hole is communicated with the clamping groove, a plurality of clamping blocks are arranged, and each clamping block is used for being correspondingly arranged in each clamping hole in a one-to-one mode so as to be clamped on the bolt body together.

3. The anti-drop bolt structure according to claim 2, characterized in that four clamping blocks are provided, and a space is provided between each clamping block.

4. The anti-separation bolt structure according to claim 1, wherein a first external thread is formed on an outer side wall of the bolt body, a first internal thread is formed on the lock nut, and the first external thread is screwed with the first internal thread.

5. The anti-loosening bolt structure according to claim 4, wherein a locking groove is further formed in an outer side wall of the bolt body, and an extending direction of the locking groove is the same as an axial direction of the bolt body.

6. The anti-loosening bolt structure according to claim 5, wherein a plurality of the locking grooves are formed, and the locking grooves are arranged adjacently in sequence.

7. The anti-loosening bolt structure according to claim 5, wherein one end of the clamping block, which is far away from the clamping ring, is provided with clamping teeth, and the clamping block is used for driving the clamping teeth to abut against the inner side wall of the clamping groove.

8. The anti-drop bolt structure according to claim 1, characterized in that the snap ring is of a ring-shaped structure.

9. The anti-drop bolt structure according to claim 8, characterized in that an included angle between the extending direction of the clamping block and the axial direction of the clamping ring is 28-32 °.

10. The anti-drop bolt structure according to claim 1, characterized in that the snap ring and the snap block are of an integrally formed structure.