CN214998779U

CN214998779U - Effective anti-loosening bolt assembly

Info

Publication number: CN214998779U
Application number: CN202023176342.9U
Authority: CN
Inventors: 黄祺裕
Original assignee: Suzhou Houqiao Metal Products Co ltd
Current assignee: Suzhou Houqiao Metal Products Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-12-03
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses an effective locking bolt assembly that moves, including bolt and nut, the bolt includes regular hexagon's head, double-screw bolt and flange, the nut spiro union is on the double-screw bolt of bolt, the shaping has the slot that runs through double-screw bolt relative both sides wall on the lower terminal surface of double-screw bolt, it has the hasp board to peg graft in the slot of bolt, the hasp board includes the locking part of isosceles trapezoid shape, the shaping of the upper end of locking part has the spacing portion of rectangle, the lateral wall of double-screw bolt is stretched out at the both ends of spacing portion; the nut comprises a regular hexagonal screwed part, a circular retaining ring is formed at the upper end of the screwed part, and a counter bore is formed in the upper end face of the retaining ring; the two ends of the limiting part on the lock catch plate are inserted into the counter bores of the retaining rings, the upper ends of the limiting parts are exposed out of the upper end faces of the retaining rings, and the lower ends of the locking parts on the lock catch plate are inserted into the screwed parts.

Description

Effective anti-loosening bolt assembly

Technical Field

The utility model relates to a technical field of bolt, more specifically say and relate to an effectual locking bolt assembly that moves.

Background

At present, vehicles and machines which run at high speed and continuously can generate vibration of different degrees, in the long-term operation of the machines, the vibration can cause loosening of bolt assemblies in the vehicles and the equipment, the loosening can cause separation of bolts and nuts on the bolt assemblies, some tragedies that vehicles are destroyed and people are killed due to loosening or falling of the bolts can cause great economic loss, some machines or the equipment cannot run due to stoppage or production, and even long time can be spent for searching the reasons, so the loosening of the bolts is a great problem. So that it is necessary to develop a bolt which does not loosen after locking.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an effectual locking bolt assembly that moves to be not enough to prior art, the bolt assembly of its combination can destroy the screw thread of nut after locking, can cause the nut card to die to can dodge the emergence of not hard up situation.

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

an effective anti-loosening bolt assembly comprises a bolt and a nut, wherein the bolt comprises a regular hexagonal head, a stud and a flange, the nut is screwed on the stud of the bolt, a slot penetrating through two opposite side walls of the stud is formed in the lower end face of the stud, a locking plate is inserted in the slot of the bolt and comprises an isosceles trapezoid-shaped stop part, a rectangular limiting part is formed at the upper end of the stop part, and two ends of the limiting part extend out of the outer side wall of the stud; the nut comprises a regular hexagonal screwed part, a circular retaining ring is formed at the upper end of the screwed part, and a counter bore is formed in the upper end face of the retaining ring; the two ends of the limiting part on the lock catch plate are inserted into the counter bores of the retaining rings, the upper ends of the limiting parts are exposed out of the upper end faces of the retaining rings, and the lower ends of the locking parts on the lock catch plate are inserted into the screwed parts.

Preferably, the thickness of the locking plate is equal to the width of the slot on the bolt, and chamfers are formed on two side edges of the stopping part.

Preferably, the length of the lower bottom edge of the stop part on the locking plate is smaller than the diameter of the stud, and the length of the upper bottom edge of the stop part is larger than the diameter of the stud.

Preferably, a gap is formed between the lower end face of the upper limiting part of the lock catch plate and the bottom face of the counter bore in the nut.

Preferably, an elastic washer is inserted into the counter bore of the nut, the upper end of the elastic washer abuts against the limiting part of the lock catch plate, and the lower end of the elastic washer abuts against the bottom surface of the counter bore.

Preferably, the outer ring of the lower end face of the upper limiting part of the lock catch plate is formed with a positioning ring groove, and the elastic washer is inserted into the positioning ring groove.

Preferably, the distance between the upper end face and the lower end face of the limiting part on the lock catch plate is not larger than the depth of the counter bore on the nut.

Preferably, the length of the screwing part on the nut is greater than that of the retaining ring.

The beneficial effects of the utility model reside in that: the combined and matched bolt assembly can destroy the threads of the nut after being locked, so that the nut can be blocked, and the loosening condition can be avoided.

Drawings

Fig. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a schematic structural view of the half-section of the present invention.

In the figure: 1. a bolt; 11. a head portion; 12. a stud; 13. a slot; 14. a flange; 2. a nut; 21. a screw connection part; 22. a baffle ring; 23. a counter bore; 3. a locking plate; 31. a stopper portion; 32. a limiting part; 33. a positioning ring groove; 4. an elastic washer.

Detailed Description

Example (b): as shown in fig. 1 to 3, an effective anti-loosening bolt assembly includes a bolt 1 and a nut 2, the bolt 1 includes a regular hexagonal head 11, a stud 12 and a flange 14, the nut 2 is screwed on the stud 12 of the bolt 1, a slot 13 penetrating through two opposite side walls of the stud 12 is formed on the lower end surface of the stud 12, a locking plate 3 is inserted into the slot 13 of the bolt 1, the locking plate 3 includes a locking part 31 in an isosceles trapezoid shape, a rectangular limiting part 32 is formed on the upper end of the locking part 31, and two ends of the limiting part 32 extend out of the outer side wall of the stud 12; the nut 2 comprises a regular hexagonal screw connection part 21, a circular retaining ring 22 is formed at the upper end of the screw connection part 21, and a counter bore 23 is formed on the upper end face of the retaining ring 22; the two ends of the upper limit part 32 of the lock catch plate 3 are inserted into the counter bore 23 of the retaining ring 22, the upper end of the limit part 32 is exposed out of the upper end surface of the retaining ring 22, and the lower end of the upper stop part 31 of the lock catch plate 3 is inserted into the screw connection part 21.

The thickness of the locking plate 3 is equal to the width of the slot 13 on the bolt 1, and chamfers are formed on two sides of the stopping part 31.

The length of the bottom edge of the stop part 31 on the latch plate 3 is smaller than the diameter of the stud 12, and the length of the bottom edge of the stop part 31 is larger than the diameter of the stud 12.

A gap is arranged between the lower end surface of the upper limiting part 32 of the lock catch plate 3 and the bottom surface of the counter bore 23 of the nut 2.

An elastic washer 4 is inserted into the counter bore 23 of the nut 2, the upper end of the elastic washer 4 abuts against the limiting part 32 of the locking plate 3, and the lower end of the elastic washer 4 abuts against the bottom surface of the counter bore 23.

The outer ring of the lower end face of the upper limit part 32 of the locking plate 3 is formed with a positioning ring groove 33, and the elastic washer 4 is inserted in the positioning ring groove 33.

The distance between the upper end surface and the lower end surface of the upper limiting part 32 of the lock catch plate 3 is not more than the depth of the counter bore 23 on the nut 2.

Preferably, the length of the screwing part 21 on the nut 2 is greater than that of the retaining ring 22.

The working principle is as follows: the utility model discloses a locking bolt assembly that moves, its bolt assembly is by bolt 1, nut 2 and snap close board 3 are constituteed, adopt threaded connection between bolt 1 and the nut 2, can drive snap close board 3 through rotating nut 2 and remove, when bolt assembly is used for the connection of spare part, lock nut 2 in-process again, can realize snap close board 3 in the nut 2 of impressing, thereby in snap close board 3 on the snap close board 3 the internal thread of the nut 2 of impressing of locking part 31, and rotate along with nut 2, cause the destruction to 2 internal threads of the nut that fall on double-screw bolt 12 slot 13, thereby realize that 2 blocks of nut die on bolt 1.

The examples are intended to be illustrative, but not limiting, of the invention. The embodiments can be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the present invention should be determined by the appended claims.

Claims

1. An effectual locking bolt assembly that moves, includes bolt (1) and nut (2), and bolt (1) is including regular hexagon's head (11), double-screw bolt (12) and flange (14), and nut (2) spiro union is on double-screw bolt (12) of bolt (1), its characterized in that: a slot (13) penetrating through two opposite side walls of the stud (12) is formed in the lower end face of the stud (12), a lock catch plate (3) is inserted in the slot (13) of the bolt (1), the lock catch plate (3) comprises an isosceles trapezoid-shaped stop part (31), a rectangular limiting part (32) is formed at the upper end of the stop part (31), and two ends of the limiting part (32) extend out of the outer side wall of the stud (12); the nut (2) comprises a regular hexagonal screwing part (21), a circular retaining ring (22) is formed at the upper end of the screwing part (21), and a counter bore (23) is formed in the upper end face of the retaining ring (22); the lock catch plate is characterized in that two ends of the limiting part (32) on the lock catch plate (3) are inserted into the counter bores (23) of the retaining rings (22), the upper end of the limiting part (32) is exposed out of the upper end face of the retaining rings (22), and the lower end of the upper stopping part (31) of the lock catch plate (3) is inserted into the threaded part (21).

2. An effective anti-loosening bolt assembly according to claim 1, wherein: the thickness of the locking plate (3) is equal to the width of the slot (13) on the bolt (1), and chamfers are formed on two sides of the stopping part (31).

3. An effective anti-loosening bolt assembly according to claim 2, wherein: the length of the lower bottom edge of the upper stopping part (31) of the lock catch plate (3) is smaller than the diameter of the stud (12), and the length of the upper bottom edge of the stopping part (31) is larger than the diameter of the stud (12).

4. An effective anti-loosening bolt assembly according to claim 1, wherein: a gap is arranged between the lower end face of the upper limiting part (32) of the lock catch plate (3) and the bottom face of the upper counter bore (23) of the nut (2).

5. An effective anti-loosening bolt assembly according to claim 4, wherein: an elastic washer (4) is inserted into the counter bore (23) in the nut (2), the upper end of the elastic washer (4) abuts against the limiting part (32) of the lock catch plate (3), and the lower end of the elastic washer (4) abuts against the bottom surface of the counter bore (23).

6. An effective anti-loosening bolt assembly according to claim 5, wherein: the outer ring of the lower end face of the upper limiting part (32) of the lock catch plate (3) is formed with a positioning ring groove (33), and the elastic washer (4) is inserted into the positioning ring groove (33).

7. An effective anti-loosening bolt assembly according to claim 1, wherein: the distance between the upper end surface and the lower end surface of the positioning part (32) on the lock catch plate (3) is not more than the depth of the counter bore (23) on the nut (2).

8. An effective anti-loosening bolt assembly according to claim 1, wherein: the length of the screwing part (21) on the nut (2) is greater than that of the retaining ring (22).