CN112031532A

CN112031532A - Spring mechanical lock

Info

Publication number: CN112031532A
Application number: CN202010945064.4A
Authority: CN
Inventors: 侯国栋
Original assignee: Kunshan Ruien New Electromechanical Co ltd
Current assignee: Kunshan Ruien New Electromechanical Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2020-12-04
Also published as: WO2022052420A1

Abstract

The invention relates to the technical field of locks, in particular to a spring mechanical lock, which comprises a lock shell, a lock core, a lock tongue and a spring, wherein an L-shaped cavity is arranged in the lock shell, the lock core and the lock tongue are matched in the cavity, one end of the spring is connected with the inner wall of the cavity of the lock shell, and the other end of the spring is connected with the lock tongue, and the spring mechanical lock is characterized in that: a recess has been seted up to the spring bolt lower part, and recess one side is equipped with the stair structure that a breach formed, the lock core top is equipped with lug and spring bolt cooperation: the advantages are that: the safety of the mechanical lock and the convenience of the spring lock are combined, the mechanical lock can stretch out and draw back under the action of external force like the spring lock in normal use, when the mechanical lock needs to prevent theft, a key needs to be rotated by 180 degrees anticlockwise after an object is installed, and then the key is pulled out, so that the anti-theft function can be opened.

Description

Spring mechanical lock

Technical Field

The invention relates to the technical field of locks, in particular to a spring mechanical lock.

Background

The tool to lock of battery case among the prior art generally has two kinds of forms of mechanical lock and spring lock, and the mechanical lock rotates through the lock core and drives the spring bolt flexible, controls the locking, and its advantage lies in simple structure, stability, firm, and the theftproof performance is good, but the main problem lies in using inconveniently in the application of mechanical lock in the battery case, needs both hands operation during the installation battery case, and the mechanical lock is opened to control the key in one hand, and the preset mounted position is arranged in to another hand operation battery case, locks the mechanical lock again. The spring lock rotates through the lock core and drives the spring bolt flexible, and the spring bolt also can contract under the exogenic action simultaneously to reset through the spring force, the advantage of spring lock lies in convenient operation, only needs one-hand operation during the installation battery case, and the spring bolt is pushed down to the battery case, and the spring bolt contracts under the exogenic action, and when the battery case reached and predetermines the mounted position, the spring drove the spring bolt and resets, with the battery case locking, but the spring lock also has following problem: 1. the anti-theft performance is not good, and the spring bolt of the spring lock is easy to retract against the elastic force of the spring under the action of external force; 2. the locking nature is not good, and the electric motor car can produce vibrations in going, and vibrations can lead to the battery case to break away from the spring bolt.

Chinese patent 201220010030.7 discloses a spring mechanical lock, the upper end of spring bolt is provided with the jump ring, and the middle-end of depression bar is provided with the last snap ring that can support cavity top inner wall, and the lower extreme inner wall of cavity is provided with the lower snap ring of entangling the spring bolt, is provided with the upper spring between jump ring and the last snap ring, is provided with the lower spring between jump ring and the lower snap ring, and the both ends of upper spring and lower spring are provided with the gasket respectively, and the coefficient of stiffness of lower spring is greater than the coefficient of stiffness of upper spring. This patent is opened and close through last spring and lower spring control, and this patent has only solved the control problem of mechanical lock, can not possess the advantage of mechanical lock and spring lock simultaneously.

Disclosure of Invention

The invention aims to solve the problems of insufficient safety of a spring lock and inconvenient operation of a mechanical lock, and provides a spring mechanical lock which can combine the advantages of the spring lock and the mechanical lock.

In order to realize above-mentioned purpose, design a spring mechanical lock, including lock shell (1), lock core (2), spring bolt (3) and spring (5), be equipped with L shape cavity in lock shell (1), lock core (2) and spring bolt (3) are at the cavity fit, and lock shell cavity inner wall is connected to spring (5) one end, and spring bolt (3), its characterized in that are connected to the spring (5) other end spring bolt (3) are seted up to spring bolt (3) lower part, and recess one side is equipped with the stair structure that a breach formed, lock core (2) top is equipped with lug and spring bolt (3) cooperation: when the position is 0, a convex block at the top of the lock cylinder (2) is arranged in a groove of the lock bolt (3), the convex block does not limit the lock bolt (3), and the lock bolt (3) stretches under the action of external force and spring restoring force; based on the 0 position, the lock core is rotated in the positive direction, the convex block at the top of the lock core (2) props against the step structure at one side of the groove of the lock tongue (3) to drive the lock tongue (3) to move inwards and compress the spring, otherwise, the lock tongue (3) is driven to move outwards under the action of the restoring force of the spring, and the spring lock is realized at the moment; based on 0 position, the lock core of reverse rotation, lock core (2) top lug are rotatory to spring bolt (3) rear portion one end from spring bolt (3) recess opposite side, carry on spacingly to spring bolt (3), switch into mechanical lock this moment, and spring bolt (3) are under the exogenic action, can not stretch out and draw back.

Preferably, the lock cylinder is provided with a slot and the spring ball set screw is mounted on the housing for engagement with the slot in the lock cylinder.

Preferably, when the lock core rotates 90 degrees based on 0 bit forward direction, the retraction stroke of the lock tongue reaches the maximum value, and the spring ball tacking screw is popped out to be matched with the upper notch of the lock core and is used for positioning force of the lock tongue in a spring locking state.

Preferably, the lock shell is further provided with a bolt positioning screw and a lock cylinder positioning screw.

Preferably, the lock cylinder is mounted in the lock housing by a lock sleeve.

Preferably, the convex block on the top of the lock core (2) is an arc convex block.

Preferably, the forward rotation may be clockwise rotation or counterclockwise rotation, and the reverse rotation is opposite to the forward rotation, and may be counterclockwise rotation or clockwise rotation.

Compared with the prior art, the invention has the advantages that: the safety of the mechanical lock and the convenience of the spring lock are combined, the mechanical lock can stretch out and draw back under the action of external force like the spring lock in normal use, when the mechanical lock needs to prevent theft, a key needs to be rotated by 180 degrees anticlockwise after an object is installed, and then the key is pulled out, so that the anti-theft function can be opened.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic view of the assembly of the present invention;

FIG. 3 is a schematic view of the 0-position assembly of the present invention;

FIG. 4 is an assembled front view of the present invention rotated 90 clockwise from the 0 position;

FIG. 5 is an assembled perspective view of the present invention rotated 90 clockwise from the 0 position;

FIG. 6 is an assembled front view of the present invention rotated 180 counterclockwise from the 0 position;

FIG. 7 is an assembled perspective view of the present invention rotated 180 counterclockwise from the 0 position;

wherein: 1. the lock comprises a lock shell 2, a lock cylinder 3, a lock tongue 4, a key 5, a spring 6, a lock sleeve 7, an annular label 8, a lock cylinder positioning screw 9, a spring ball screw tightening screw 10 and a lock tongue positioning screw.

Detailed Description

The present invention is further described below in conjunction with the following drawings, the structure and principle of which will be apparent to those skilled in the art. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In a first embodiment, referring to fig. 1 and fig. 2, the invention is a mechanical spring lock, which has the following specific structure:

including lock shell, lock core, spring bolt and spring, be equipped with L shape cavity in the lock shell, lock core and spring bolt are at the cavity fit, and lock shell cavity inner wall is connected to spring one end, and the spring bolt is connected to the spring other end, and a recess has been seted up to the spring bolt lower part, and recess one side is equipped with the stair structure that a breach formed, and the lock core top is equipped with arc lug and spring bolt cooperation. The lock core is arranged in the lock shell through the lock sleeve, a notch is further formed in the lock core, and the spring ball screw is arranged on the lock shell and used for being matched with the notch in the lock core. The lock shell is also provided with a bolt positioning screw and a lock core positioning screw.

In the second embodiment, referring to fig. 3, the assembly diagram of the mechanical spring lock in the initial position is shown, the initial position is referred to as 0 position, and when the position 0 is reached, the arc-shaped protrusion on the top of the lock cylinder is disposed in the lock tongue groove, and the arc-shaped protrusion does not limit the lock tongue, so that the key can be pulled out. The lock at the moment is the same as a common spring lock, the spring bolt can retract under the action of external force, and when the external force is absent, the spring bolt can automatically rebound under the action of the spring, so that the aim of locking is fulfilled. But this state is not theft proof.

Third embodiment, referring to fig. 4 and 5, the mechanical spring lock of the present invention is rotated 90 ° clockwise in the 0 position, and in this state, the mechanical spring lock is a spring lock, and the key cannot be pulled out. The lock core can drive the spring bolt retraction at rotatory in-process, and the spring bolt retraction stroke reaches the maximum value this moment, and spring ball tacking screw pops out and corresponds the recess cooperation on the position with the lock core, and the spring bolt can be fixed in this position of 90, and the key is being turned round always to the hand, facilitates the use, and anticlockwise twists gently under this state, alright kick-back, very nimble

In the fourth embodiment, referring to fig. 6 and 7, the mechanical spring lock of the present invention is in a mechanical lock state when the mechanical spring lock is rotated 180 ° counterclockwise at 0 position, and at this time, the arc-shaped protrusion on the top of the lock cylinder is rotated from the other side of the lock tongue groove to one end of the rear portion of the lock tongue to limit the lock tongue, and in this state, the key can be pulled out. In the motion process, because the lock core is not in contact with the spring bolt, the spring bolt can be smoothly twisted to a 180-degree position, the lock core can be in contact with the spring bolt when the lock core reaches the position, the spring bolt can not move outwards under the action of the spring bolt positioning screw, when the spring bolt rotates to 180 degrees in the same anticlockwise direction, the spring ball tacking screw is popped out to be matched with a groove in the position corresponding to the lock core, the sound can be generated, meanwhile, the vibration feeling can be generated on hand, the anticlockwise rotation reaches 180 degrees, the limit value is reached, the spring lock is switched to be in a mechanical lock function, the spring bolt can not retract, and the anti-theft purpose is achieved.

Claims

1. The mechanical spring lock comprises a lock shell (1), a lock cylinder (2), a bolt (3) and a spring (5), wherein an L-shaped cavity is arranged in the lock shell (1), the lock cylinder (2) and the bolt (3) are matched in the cavity, one end of the spring (5) is connected with the inner wall of the cavity of the lock shell, and the other end of the spring (5) is connected with the bolt (3), and the mechanical spring lock is characterized in that

A groove is arranged at the lower part of the lock tongue (3), a step structure formed by a gap is arranged at one side of the groove,

the top of the lock core (2) is provided with a convex block matched with the lock tongue (3):

when the position is 0, a convex block at the top of the lock cylinder (2) is arranged in a groove of the lock bolt (3), the convex block does not limit the lock bolt (3), and the lock bolt (3) stretches under the action of external force and spring restoring force;

based on the 0 position, the lock core is rotated in the positive direction, the convex block at the top of the lock core (2) props against the step structure at one side of the groove of the lock tongue (3) to drive the lock tongue (3) to move inwards and compress the spring, otherwise, the lock tongue (3) is driven to move outwards under the action of the restoring force of the spring, and the spring lock is realized at the moment;

based on 0 position, the lock core of reverse rotation, lock core (2) top lug are rotatory to spring bolt (3) rear portion one end from spring bolt (3) recess opposite side, carry on spacingly to spring bolt (3), switch into mechanical lock this moment, and spring bolt (3) are under the exogenic action, can not stretch out and draw back.

2. A mechanical latch as claimed in claim 1, characterised in that the lock cylinder (2) is provided with a slot and the spring ball set screw (9) is mounted in the housing (1) for cooperation with the slot in the lock cylinder (2).

3. A spring mechanical lock according to claim 1, characterized in that when the lock cylinder is rotated 90 ° based on the 0 position forward direction, the retraction stroke of the latch bolt (3) reaches the maximum, and the spring ball tacking screw (9) is ejected to engage with the upper notch of the lock cylinder (2) for positioning force of the latch bolt (3) in the spring lock state.

4. A mechanical spring lock according to claim 1, characterized in that the lock housing (1) is further provided with bolt set screws (10) and core set screws (8).

5. A mechanical spring lock according to claim 1, characterized in that the lock cylinder (2) is mounted in the lock housing (1) by means of a lock sleeve (6).

6. A mechanical latch as claimed in claim 1, characterised in that the projection on the top of the lock cylinder (2) is an arcuate projection.