CN210599765U

CN210599765U - Anti-drop stud

Info

Publication number: CN210599765U
Application number: CN201921586325.7U
Authority: CN
Inventors: 任爽
Original assignee: Shibo Industrial Group Co Ltd
Current assignee: Shibo Industrial Group Co Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-05-22
Anticipated expiration: 2029-09-23

Abstract

The utility model discloses an anti-drop stud, including stud, first nut and second nut and stud phase-match, be provided with the round hole between stud's the screw thread interval, be provided with on the first nut and articulate in the inside screens board of recess, be provided with align to grid's screens hole on the screens board, be provided with the screens pole that is located the recess on the second nut, be provided with the cavity on the first nut, be provided with the stopper in the cavity, the stopper endotheca is equipped with the gag lever post. The utility model discloses in, through setting up the round hole and the slender pole that matches with the round hole, make the fastening more and stable of the cooperation of nut and bolt, make the bolt prevent to drop in the use, because the problem that vibrations and live time long easy drop when having solved the cooperation of bolt and nut, convenient to use, simple structure guarantees the security, improves mechanical life.

Description

Anti-drop stud

Technical Field

The utility model relates to a fastener technical field especially relates to an anti-drop stud.

Background

The bolt is a fastener commonly used, can use with the nut cooperation, when using, passes the through-hole of two or more spare parts with the shank of bolt, screws up nut cooperation screw thread on the screw rod to the realization is in the same place two or more spare parts fastening, but the vibrations of machinery use throughout the year, the time is one long, the nut will slowly become flexible from the shank of bolt, and then makes each spare part produce not hard up, drops even, produces adverse effect to the structure or the part of connecting, takes place the accident very easily. Greatly affecting the safety and the service life of the machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an anti-drop stud.

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

the utility model provides an anti-drop stud, includes stud, first nut and second nut and stud phase-match, be provided with the round hole between stud's the screw thread interval, be provided with on the first nut and articulate in the inside screens board of recess, be provided with align to grid's screens hole on the screens board, be provided with the screens pole that is located the recess on the second nut, be provided with the cavity on the first nut, be provided with the stopper in the cavity, the stopper endotheca is equipped with the gag lever post, the upper end of gag lever post is connected with the knot that draws that is located the first nut outside, one side of the other end fixedly connected with push pedal of gag lever post, the opposite side of push pedal is fixed with the dead lever, the cover is equipped with the spring that is located between push pedal and the stopper on the gag lever post.

Preferably, the outer diameter of the fixing rod is slightly smaller than the diameter of the round hole, and the outer diameter of the clamping rod is slightly smaller than the diameter of the clamping hole.

Preferably, the thread pitch on the stud bolt is greater than the diameter of the round hole.

Preferably, the cavity is a circular through hole.

Preferably, the first nut and the second nut are the same in size and are both hexagon nuts.

The utility model has the advantages that: the utility model discloses in, through setting up the round hole and the slender pole that matches with the round hole, make the fastening more and stable of the cooperation of nut and bolt, make the bolt prevent to drop in the use, because the problem that vibrations and live time long easy drop when having solved the cooperation of bolt and nut, convenient to use, simple structure guarantees the security, improves mechanical life.

Drawings

Fig. 1 is a schematic structural view of the anti-drop stud bolt of the present invention.

Fig. 2 is a schematic view of a cross-sectional structure of the first nut of the anti-drop stud bolt of the present invention.

Fig. 3 is a schematic structural view of the second nut of the anti-drop stud bolt of the present invention.

Reference numbers in the figures: the device comprises a stud bolt 1, a round hole 2, a first nut 3, a second nut 4, a clamping plate 5, a clamping hole 6, a clamping rod 7, a cavity 8, a limiting block 9, a limiting rod 10, a pull buckle 11, a spring 12, a push plate 13 and a fixing rod 14.

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.

Referring to fig. 1-3, an anti-falling stud bolt comprises a stud bolt 1, a first nut 3 and a second nut 4, the first nut 3 and the second nut 4 are matched with the stud bolt 1, round holes 2 are arranged between thread spaces of the stud bolt 1, a clamping plate 5 hinged inside a groove is arranged on the first nut 3, clamping holes 6 are uniformly arranged on the clamping plate 5, a clamping rod 7 positioned in the groove is arranged on the second nut 4, a cavity 8 is arranged on the first nut 3, a limiting block 9 is arranged in the cavity 8, a limiting rod 10 is sleeved in the limiting block 9, a pull buckle 11 positioned outside the first nut is connected at the upper end of the limiting rod 10, one side of a push plate 13 is fixedly connected at the other end of the limiting rod 10, a fixing rod 14 is fixed at the other side of the push plate 13, a spring 12 positioned between the push plate 13 and the limiting block 9 is sleeved on the limiting rod 10, the external diameter of dead lever 14 slightly is less than the diameter of round hole 2, and the external diameter of screens pole 7 slightly is less than the diameter in screens hole 6, and the screw thread interval on the stud 1 is greater than the diameter of round hole 2, and cavity 8 is the circular shape through-hole, and first nut 3 is the same with second nut 4 size, and is hexagon nut.

The working principle is as follows: prevent that stud from droing through each part cooperation, pulling buckle 11, make dead lever 14 get into in the cavity 8, then rotate first nut 3, make first nut 3 reach appointed position, loosen and draw knot 11, dead lever 14 resets, and fixed with round hole 2 between stud 1's screw thread, rotate second nut 4, make second nut 4 reach the assigned position, screens board 5 will cooperate in screens pole 7, it is fixed to make second nut 4, first nut 3 and second nut 4 restrict each other, prevent that stud from droing.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An anti-drop stud bolt comprises a stud bolt (1), a first nut (3) and a second nut (4), and is characterized in that the first nut (3) and the second nut (4) are matched with the stud bolt (1), round holes (2) are formed between thread intervals of the stud bolt (1), a clamping plate (5) hinged inside a groove is arranged on the first nut (3), clamping holes (6) which are uniformly arranged are formed in the clamping plate (5), a clamping rod (7) located in the groove is arranged on the second nut (4), a cavity (8) is arranged on the first nut (3), a limiting block (9) is arranged in the cavity (8), a limiting rod (10) is sleeved in the limiting block (9), a pull buckle (11) located outside the first nut is connected to the upper end of the limiting rod (10), the other end fixedly connected with push pedal (13) of gag lever post (10) one side, the opposite side of push pedal (13) is fixed with dead lever (14), the cover is equipped with spring (12) that are located between push pedal (13) and stopper (9) on gag lever post (10).

2. The drop-proof stud bolt as claimed in claim 1, wherein the outer diameter of the fixing rod (14) is slightly smaller than the diameter of the circular hole (2), and the outer diameter of the catching rod (7) is slightly smaller than the diameter of the catching hole (6).

3. A drop-proof stud bolt according to claim 1, wherein the pitch of the threads on the stud bolt (1) is greater than the diameter of the circular hole (2).

4. A drop-proof stud bolt according to claim 1, characterised in that the cavity (8) is a circular through hole.

5. A drop-proof stud bolt according to claim 1, characterised in that the first nut (3) and the second nut (4) are the same size and are both hexagonal nuts.