CN110206395B

CN110206395B - Safety mechanism of square bolt

Info

Publication number: CN110206395B
Application number: CN201910521565.7A
Authority: CN
Inventors: 杨期发; 杨勇
Original assignee: Guangdong Be-Tech Security Systems Ltd
Current assignee: Guangdong Be-Tech Security Systems Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2024-01-12
Anticipated expiration: 2039-06-17
Also published as: CN110206395A

Abstract

The invention relates to a lock body, in particular to a safety mechanism of a square bolt. The lock comprises a lock body, a square lock tongue, a transmission swing arm, a shifting fork and a driving component for driving the shifting fork to swing, wherein the lock body is internally provided with a safety component, the safety component can prop against the square lock tongue after the square lock tongue stretches out of the lock body, the square lock tongue is prevented from being pressed into the lock body, when the shifting fork is started to unlock, the shifting fork drives the transmission swing arm to swing towards the safety component, the transmission swing arm pushes away the safety component, the safety component leaves Fang Suoshe for unlocking, and the shifting fork swings to drive the square lock tongue to enter the lock body. The invention has simple and reasonable structural design, automatic safety on the safety component, convenience and reliable propping, and the external force can press the square bolt into the lock body to unlock after breaking the pivot of the pin joint square bolt safety plate and overcoming the torque of the motor, so the safety performance of the lock body is greatly improved.

Description

Safety mechanism of square bolt

Technical Field

The invention relates to a lock body, in particular to a safety mechanism of a square bolt.

Background

The safety mechanism of the existing square spring bolt comprises a lock body, the square spring bolt, a transmission swing arm, a shifting fork and a driving component for driving the shifting fork to swing, wherein the transmission swing arm is pivoted at the tail part of the square spring bolt, the force application end of the shifting fork is matched with the tail part of the transmission swing arm, the force application end of the shifting fork is connected with the driving component, the driving component drives the shifting fork to swing reciprocally, the shifting fork swings reciprocally to drive the spring bolt to enter and exit the lock body, and the current square spring bolt can only be prevented from being pried by the resistance of the driving component, and the resistance is derived from the torque of a motor.

Disclosure of Invention

Therefore, an object of the present invention is to provide a safety mechanism for a square bolt that can effectively prevent the square bolt from being pried.

The object of the present invention is thus achieved.

The utility model provides a safety mechanism of side spring bolt, includes lock body, side spring bolt, transmission swing arm, shift fork, drive shift fork wobbling actuating unit, and transmission swing arm pin joint is at side spring bolt afterbody, and the application of force end and the afterbody cooperation of transmission swing arm of shift fork, the atress end and the actuating unit of shift fork are connected, and actuating unit drives the reciprocal swing of shift fork, and the reciprocal swing of shift fork drives side spring bolt business turn over lock body, be equipped with the safety unit in the lock body, and the safety unit can support side spring bolt after side spring bolt stretches out the lock body, prevents that side spring bolt from being pressed into in the lock body, and during the shift fork starts the unblanking, shift fork drive transmission swing arm is to the safety unit side swing, and the safety unit is pushed away to the transmission swing arm, and Fang Suoshe unblock is left to the safety unit, and the shift fork swing drives side spring bolt and gets into the lock body.

The above technical solution can be further perfected as follows.

The safety component comprises a square spring bolt safety plate, the inner end of the square spring bolt safety plate is pivoted in the lock body, the square spring bolt safety plate is provided with a torsion spring, the outer end of the square spring bolt safety plate is always provided with a trend of swinging towards the side of the square spring bolt by the torsion spring, and the outer end of the square spring bolt safety plate and the square spring bolt can be mutually abutted.

The tail end of the force application end of the shifting fork is provided with a bearing, and the side surface of the corresponding transmission swing arm contacted with the bearing is arc-shaped.

The Fang Suoshe tail is fixed with two positioning columns, the force application end of the shifting fork is limited between the two positioning columns, fang Suoshe stretches out of the lock body to lock when one positioning column is matched and interlocked with the shifting fork, and Fang Suoshe enters the lock body to unlock when the other positioning column is matched and interlocked with the shifting fork.

The invention has simple and reasonable structural design, automatic safety on the safety component, convenience and reliable propping, and the external force can press the square bolt into the lock body to unlock after breaking the pivot of the pin joint square bolt safety plate and overcoming the torque of the motor, so the safety performance of the lock body is greatly improved.

Drawings

Fig. 1 is a schematic plan view of an embodiment after locking.

Fig. 2 is a schematic plan view of an embodiment in an instant when unlocked.

Fig. 3 is a schematic plan view of the embodiment after unlocking.

Detailed Description

The invention is further described in detail below with reference to the drawings and examples.

The embodiment combines the drawing, a safety mechanism of square spring bolt, including lock body 1, square spring bolt 2, transmission swing arm 3, shift fork 4, drive fork wobbling drive assembly 5, and safety assembly, transmission swing arm 3 pin joint is at square spring bolt 2 afterbody, and the application end 40 of shift fork 4 cooperates with transmission swing arm 3's afterbody, and the end of shift fork application end 40 is equipped with bearing 41, and corresponding transmission swing arm 3 side 30 shape that contacts with bearing 41 is the arc, fang Suoshe 2 afterbody fixed two reference columns 20, 21, the application end 40 of shift fork is spacing between two reference columns 20, 21, and when one of them reference column 20 and shift fork 4 cooperation interlock, square spring bolt 2 stretches out lock body 1 and locks, and when another reference column 21 and shift fork 4 cooperation interlock, square spring bolt 2 gets into lock body 1 and unbuckles. The force-bearing end 42 of the shifting fork 4 is connected with the driving component 5, the driving component 5 is in the prior art, and the driving component 5 drives the shifting fork 4 to swing reciprocally, and the reciprocal swing of the shifting fork 4 drives the square bolt 2 to enter and exit the lock body 1.

The safety component is arranged in the lock body 1, the safety component comprises a square spring bolt safety plate 6, the inner end of the square spring bolt safety plate 6 is pivoted in the lock body 1 and positioned at one side of the square spring bolt 2, the square spring bolt safety plate 6 is provided with a torsion spring (not shown in the figure, the torsion spring is covered by the square spring bolt safety plate), the outer end of the square spring bolt safety plate 6 always has a trend of swinging towards the side of the square spring bolt 2, and the outer end of the square spring bolt safety plate 6 and the square spring bolt 2 can mutually abut against each other. The square spring bolt safety plate 6 can prop against the square spring bolt 2 after the square spring bolt 2 stretches out of the lock body 1, so that the square spring bolt is prevented from being pressed into the lock body, when the shifting fork starts unlocking, the shifting fork 4 drives the transmission swing arm 3 to swing towards the side of the square spring bolt safety plate 6, the transmission swing arm 3 pushes away the square spring bolt safety plate 6, the square spring bolt safety plate leaves Fang Suoshe for unlocking, and the shifting fork swings to drive the square spring bolt to enter the lock body.

Claims

1. The utility model provides a safety mechanism of square spring bolt, includes lock body, square spring bolt, transmission swing arm, shift fork, drive shift fork wobbling actuating unit, and transmission swing arm pin joint is at square spring bolt afterbody, and the afterbody cooperation of the application of force end and the transmission swing arm of shift fork, the atress end and the actuating unit of shift fork are connected, and the reciprocating swing of actuating unit drive shift fork drives square spring bolt business turn over lock body, its characterized in that: the lock body is internally provided with a safety component, the safety component can prop against the square spring bolt after the square spring bolt extends out of the lock body, the square spring bolt is prevented from being pressed into the lock body, when the shifting fork starts unlocking, the shifting fork drives the transmission swing arm to swing towards the safety component side, the transmission swing arm pushes the safety component away, the safety component leaves Fang Suoshe for unlocking, and the shifting fork swings to drive the square spring bolt to enter the lock body;

the safety component comprises a square spring bolt safety plate, wherein the inner end of the square spring bolt safety plate is pivoted in the lock body, the square spring bolt safety plate is provided with a torsion spring, the outer end of the square spring bolt safety plate always has a tendency of swinging towards the side of the square spring bolt, and the outer end of the square spring bolt safety plate and the square spring bolt can be mutually abutted;

the tail end of the shifting fork force application end is provided with a bearing, and the side surface of the corresponding transmission swing arm contacted with the bearing is arc-shaped;