CN107975307B

CN107975307B - Automatic U-shaped lock that locks

Info

Publication number: CN107975307B
Application number: CN201610916410.XA
Authority: CN
Inventors: 郭樟星
Original assignee: Red Star Locks Co ltd
Current assignee: Red Star Locks Co ltd
Priority date: 2016-10-21
Filing date: 2016-10-21
Publication date: 2023-12-29
Anticipated expiration: 2036-10-21
Also published as: CN107975307A

Abstract

The invention relates to an automatic locking U-shaped lock, which comprises a U-shaped lock rod and a lock body, and is characterized in that the lock body comprises a lock shell, a lock cylinder, a lock pin and a triggering safety mechanism, wherein the triggering safety mechanism comprises a limiting piece, a limiting spring, a pressing piece and a pressing spring; the jacking spring is sleeved in the jacking piece and sleeved in the lock hole together with the jacking piece, the limiting spring is sleeved in the limiting piece and sleeved in the nesting groove together with the limiting piece, and the jacking piece and the limiting piece are clamped together; the lock pin is arranged in the chute in a lying way; the lock pin is provided with a limiting hole, the bottom of the limiting piece is also provided with a limiting convex part, the limiting convex part passes through the perforation and is clamped into the limiting hole of the lock pin, the lock cylinder is arranged in the lock shell, and the lock cylinder is connected with the lock pin. The invention has the characteristics of simple structure, high reliability, convenient use, long service life and the like.

Description

Automatic U-shaped lock that locks

Technical Field

The invention relates to the technical field of locks, in particular to a U-shaped lock.

Background

For example, patent document of Chinese patent application number 200720114396.8, named "U-shaped lock", discloses a U-shaped lock product, wherein the U-shaped lock comprises a lock head, a hollow tube, an inner core, a lock gate, a feed and a lock ring, wherein the feed is movably installed in the inner core up and down, a feed spring is arranged below the feed, and a lock gate which is matched with the lock gate is also arranged on the side surface of the feed; when the U-shaped lock is not locked, the upper end of the vertical plate is abutted against the end part of the lock gate; when locking, the lock ring can push the feed rod to move downwards, so that the vertical plate is separated from the lock gate, and automatic locking is realized. When the U-shaped lock is used, the lock gate and the upper end of the vertical plate of the transmitter are rubbed with each other, the end part of the lock gate and the upper end of the vertical plate of the transmitter are worn for a long time, so that the vertical plate of the transmitter loses the function of supporting the lock gate, the lock gate can extend into the movable hole, a false lock phenomenon occurs, the lock ring can be scratched with the lock gate and worn when being locked, and the service life is short; in addition, the abrasion of the lock end portion reduces the stability of locking, and the reliability is poor.

Disclosure of Invention

The invention aims to provide an automatic locking U-shaped lock, which has the advantages of simple structure, high reliability, convenient use, long service life and the like.

The technical scheme of the invention is realized as follows: the U-shaped lock capable of automatically locking comprises a U-shaped lock rod and a lock body, and is characterized in that the lock body comprises a lock shell, a lock core, a lock pin and a triggering safety mechanism, wherein the triggering safety mechanism comprises a limiting piece, a limiting spring, a pressing piece and a pressing spring, a lock hole penetrating through the lock shell is formed in the top surface of the lock shell, a nested groove is formed beside the lock hole, a chute for embedding the lock pin is formed in the bottom surface of the lock shell, and a through hole penetrating through the chute is formed in the bottom of the nested groove; the pressing spring is sleeved in the pressing piece and sleeved in the lock hole together with the pressing piece, the limiting spring is sleeved in the limiting piece and sleeved in the nesting groove together with the limiting piece, and the pressing piece and the limiting piece are clamped together; the lock pin is arranged in the chute in a lying way; the lock pin is also provided with a limiting hole, the bottom of the limiting piece is also provided with a limiting convex part, and the limiting convex part passes through the perforation and is clamped into the limiting hole of the lock pin; the lock cylinder is installed in the lock shell and is connected with the lock pin.

Further comprises a self-locking spring, the lock core is arranged in a lock core hole arranged in the middle of the lock shell, the lock cylinder is also provided with a poking pin part which is connected with the lock pin; the self-locking spring is sleeved in the lock cylinder hole, and is provided with two clamping end parts, one clamping end part of the self-locking spring is clamped with the lock cylinder, and the other clamping end part of the self-locking spring is clamped on the wall of the lock cylinder hole.

Still further, be equipped with the joint groove with dialling round pin portion looks joint on the lockpin.

The invention adopts the technical proposal, so that the invention can obtain the following technical effects:

the invention adopts the triggering safety mechanism composed of the limiting piece, the limiting spring, the propping piece and the propping spring, when the lock is unlocked, the lock cylinder rotates to drive the lock pin to retract into the chute, the propping piece ejects the U-shaped lock rod under the action of the propping spring so as to be convenient for a user to take out, and the limiting convex part of the limiting piece passes through the through hole to be clamped into the limiting hole of the lock pin under the action of the limiting spring, so that the lock pin can not extend into the lock hole after the lock is unlocked; the design ensures that the end part of the lock pin cannot be worn, and can effectively avoid the damage caused by the collision between the lock pin and the U-shaped lock rod.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic diagram of the dismounting structure of the present invention.

Fig. 3 is a schematic perspective view of the lock case of fig. 2 after being turned 180 degrees.

Fig. 4 is a schematic perspective view of the casing in fig. 2 after being turned 180 degrees.

Fig. 5 is a schematic structural view of the self-locking spring of the present invention.

Detailed Description

As shown in fig. 1, 2, 3, 4 and 5, the automatic locking U-shaped lock of the present invention comprises a U-shaped lock rod 1 and a lock body 2, wherein the lock body 2 comprises a lock shell 21, a lock cylinder 22, a lock pin 3 and a triggering safety mechanism, the triggering safety mechanism comprises a limiting piece 4, a limiting spring 6, a pressing piece 5 and a pressing spring 9, a lock hole 213 penetrating through the lock shell 21 is formed in the top surface of the lock shell 21, a nesting groove 214 is formed beside the lock hole 213, a sliding groove 212 for embedding the lock pin 3 is formed in the bottom surface of the lock shell 21, and a through hole 215 penetrating through the sliding groove 212 is formed in the bottom of the nesting groove 214; the jacking spring 9 is sleeved in the jacking piece 5 and sleeved in the lock hole 213 together with the jacking piece 5, the limiting spring 6 is sleeved in the limiting piece 4 and sleeved in the nesting groove 214 together with the limiting piece 4, and the jacking piece 5 and the limiting piece 4 are clamped together; the lock pin 3 is arranged in the chute 212 in a lying way; the lock pin 3 is also provided with a limit hole 31, the bottom of the limit piece 4 is also provided with a limit convex part 41, and the limit convex part 41 passes through the perforation 215 and is clamped into the limit hole 31 of the lock pin 3; the lock cylinder 22 is mounted in the lock housing 21, and the lock cylinder 22 is connected to the lock pin 3. By adopting the triggering safety mechanism, when the lock core 22 is unlocked, the lock pin 3 is driven to retract into the chute 212, the pressing piece 5 ejects the U-shaped lock rod 1 under the action of the pressing spring 9 so as to be convenient for a user to take out, and the limit convex part 41 of the limit piece 4 passes through the perforation 215 to be clamped into the limit hole 31 of the lock pin 3 under the action of the limit spring 6, so that the lock pin 3 cannot extend into the lock hole 213 after unlocking; the design ensures that the end part of the lock pin 3 cannot be worn, and can effectively avoid the damage caused by the collision between the lock pin 3 and the U-shaped lock rod 1.

In order to realize the automatic locking function of the invention, as shown in fig. 2 and 5, the invention also comprises a self-locking spring 23, the lock cylinder 22 is arranged in a lock cylinder hole 211 arranged in the middle of the lock shell 21, a poking pin part 221 is also arranged on the lock cylinder 22, and the poking pin part 221 is connected with the lock pin 3; the self-locking spring 23 is sleeved in the lock cylinder hole 211, and the self-locking spring 23 is provided with two clamping end parts 231, one clamping end part 231 is clamped with the lock cylinder 22, and the other clamping end part 231 is clamped on the wall of the lock cylinder hole 211. The invention adopts only one self-locking spring 23, and the self-locking spring 23 drives the lock cylinder 22 to rotate, thereby realizing the function of automatic locking.

In order to make the connection structure between the lock pin 3 and the poking pin 221 more reasonable, as shown in fig. 2, the lock pin 3 is provided with a clamping groove 32 which is clamped with the poking pin 221.

In order to make the outer side structure of the lock body 2 more neat, as shown in fig. 2 and 4, the lock body 2 further includes a housing 7, the housing 7 is sleeved on the lock housing 21 and fixed by the fixing bolt 10, the bottom surface of the housing 7 is correspondingly provided with a first through hole 71 corresponding to the position of the lock hole 213, and the top surface of the housing 7 is correspondingly provided with a second through hole 72 corresponding to the position of the lock core hole 211.

The invention can be applied to the scheme that one end of the U-shaped lock rod 1 is hinged on the lock body to lock the other end of the U-shaped lock rod 1; the lock body 2 can be applied to the scheme of locking the two ends of the U-shaped lock rod 1 as shown in fig. 2 and 3, and comprises two groups of triggering safety mechanisms and two corresponding lock pins 3, wherein each end of the U-shaped lock rod 1 is provided with a lock groove 11; the working principle of the invention of the scheme is approximately as follows: as shown in fig. 2 and 3, during locking, the end of the U-shaped lock rod 1 is inserted into the lock hole 213, the end of the U-shaped lock rod 1 pushes the pressing piece 5 to drive the limiting piece 4 to move, so that the limiting convex part 41 of the limiting piece 4 is separated from the limiting hole 31 of the lock pin 3, at this time, the self-locking spring 23 drives the lock cylinder 22 to rotate, so that the pin pulling part 221 of the lock cylinder 22 pushes the two lock pins 3 to be respectively inserted into the lock grooves 11 of the U-shaped lock rod 1, and the locking action is completed; when unlocking, the key 8 is inserted into the keyhole of the lock core 22, the key 8 is turned, the key 8 drives the lock core 22 to rotate, the poking pin part 221 on the lock core 22 pulls the lock pin 3 to retract into the chute 212, at the moment, the limiting piece 4 and the propping piece 5 are reset under the action of the limiting spring 6 and the propping spring 9, wherein the propping piece 5 pushes the U-shaped lock rod 1 out, and the limiting convex part 41 of the limiting piece 4 is clamped into the limiting hole 31 of the lock pin 3 through the perforation 215, so that the lock pin 3 is limited in the chute 212.

Claims

1. The utility model provides an automatic U-shaped lock that locks, includes U-shaped locking lever (1), lock body (2), its characterized in that: the lock body (2) comprises a lock shell (21), a lock cylinder (22), a lock pin (3) and a triggering safety mechanism, wherein

The triggering safety mechanism comprises a limiting piece (4), a limiting spring (6), a pressing piece (5) and a pressing spring (9), a lock hole (213) penetrating through the lock shell (21) is formed in the top surface of the lock shell (21), a nested groove (214) is formed beside the lock hole (213), a chute (212) for the locking pin (3) to be embedded is further formed in the bottom surface of the lock shell (21), and a through hole (215) penetrating through the chute (212) is formed in the bottom of the nested groove (214);

the pressing spring (9) is sleeved in the pressing piece (5) and sleeved in the lock hole (213) together with the pressing piece (5), the limiting spring (6) is sleeved in the limiting piece (4) and sleeved in the nesting groove (214) together with the limiting piece (4), and the pressing piece (5) is clamped with the limiting piece (4);

the lock pin (3) is arranged in the chute (212) in a lying way; the lock pin (3) is also provided with a limit hole (31), the bottom of the limit piece (4) is also provided with a limit convex part (41), and the limit convex part (41) passes through the perforation (215) to be clamped into the limit hole (31) of the lock pin (3);

the lock cylinder (22) is arranged in the lock shell (21), and the lock cylinder (22) is connected with the lock pin (3).

2. The auto-locking U-lock of claim 1 wherein: the lock is characterized by further comprising a self-locking spring (23), wherein the lock cylinder (22) is arranged in a lock cylinder hole (211) arranged in the middle of the lock shell (21), a poking pin part (221) is further arranged on the lock cylinder (22), and the poking pin part (221) is connected with the lock pin (3); the self-locking spring (23) is sleeved in the lock cylinder hole (211), the self-locking spring (23) is provided with two clamping end parts (231), one clamping end part (231) is clamped with the lock cylinder (22), and the other clamping end part (231) is clamped on the wall of the lock cylinder hole (211).

3. The auto-locking U-lock of claim 2 wherein: the lock pin (3) is provided with a clamping groove (32) which is clamped with the poking pin part (221).

4. The auto-locking U-lock of claim 2 wherein: the lock body (2) further comprises a shell (7), the shell (7) is sleeved on the lock shell (21), a first through hole (71) corresponding to the lock hole (213) is correspondingly arranged on the bottom surface of the shell (7), and a second through hole (72) corresponding to the lock core hole (211) is correspondingly arranged on the top surface of the shell (7).