CN215291974U - Self-locking isolation lock - Google Patents

Abstract

The utility model discloses a from locking-type isolation lock, including lock core, spring bolt and rocking arm, the lock core is fixed on the rocking arm, and the pivot is installed on the rocking arm top, and pivot movable mounting is downthehole at the pivot of spring bolt, and the pivot hole includes 3 communicating arch holes, and the arch hole is regular pyramid shape and distributes. The isolating lock has the advantages that the self-locking function is realized at the initial position and the isolating position, the positioning is reliable, the circular flanges are adopted inside and outside, the appearance is simple and attractive, the main components can be directly installed from the side surface of the door plate, the assembly and the maintenance are simple, the structure is simple, the reliability is high, and the cost is low.

Description

Self-locking isolation lock

Technical Field

The utility model relates to an isolation lock, more specifically relates to a from locking-type isolation lock.

Background

Along with the high-speed development and application of domestic subways, the electric double-opening sliding plug door system is increasingly applied to a door of a subway coach. When the door system fails and cannot be normally serviced, the door can be manually mechanically isolated to prevent damage from being enlarged. The commonly used isolation lock structure adopts a crank slider structure, and the horizontal displacement of a lock tongue is realized by twisting a lock cylinder. Although the existing isolation lock can realize self-locking, the existing isolation lock has more components, more complex structure, high manufacturing cost, troublesome assembly and difficult maintenance, and the design of partial isolation lock only has the function of pre-tightening force at the initial and isolation positions and can not realize self-locking, and the lock tongue can slightly move when a vehicle runs to bring shaking noise; and the existing isolation lock adopts a square internal lock box structure, so that the isolation lock is not attractive and simple.

Disclosure of Invention

Utility model purpose: the utility model aims at providing a all have self-locking function, simple structure, easily assembly maintenance's from locking-type isolation lock at initial position and isolation position.

The technical scheme is as follows: from locking-type keep apart lock, including lock core, spring bolt and rocking arm, the lock core is fixed on the rocking arm, and the pivot is installed on the rocking arm top, and pivot movable mounting is downthehole at the pivot of spring bolt, and the pivot hole includes 3 communicating arch holes, and arch hole is regular pyramid and distributes.

Wherein, the pivot interpolation has the torsional spring, and the torsional spring other end is fixed on the spring bolt top.

Wherein, the lock tongue can be inserted in the guide sleeve in a horizontally moving way.

Wherein, the lock core is fixed on the door leaf through interior lock box and outer lock box.

Wherein, the lock core is installed the sealing washer with interior lock box, outer lock box junction.

The lock cylinder is square, the surface of the lock cylinder is provided with a straight lock hole, and the rotating arm is provided with a square hole matched with the lock cylinder, so that the lock cylinder can drive the rotating arm to move conveniently.

Has the advantages that: compared with the prior art, the utility model, its advantage is: 1. the self-locking function is realized at the initial position and the isolation position, and the positioning is reliable; 2. the round flanges are adopted inside and outside, so that the appearance is simple and attractive; 3. the main components can be directly installed from the side surface of the door panel, and the assembly and maintenance are simple; 4. simple structure, high reliability and low cost.

Drawings

Fig. 1 is an opening schematic view of the present invention;

fig. 2 is a schematic locking view of the present invention;

fig. 3 is a rear view of the present invention;

FIG. 4 is a cross-sectional view of the lock cylinder;

fig. 5 is an exploded view of the present invention.

Detailed Description

As shown in fig. 1 and 5, the self-locking isolation lock comprises a lock core 1, a bolt 5 and a rotating arm 3, wherein the bolt 5 can horizontally move in a guide sleeve 2, the lock core 1 is fixed on the rotating arm 3, a shaft pin 4 is installed at the top end of the rotating arm 3, the shaft pin 4 is movably installed in a shaft pin hole 11 of the bolt 5, a torsion spring 6 is inserted in the shaft pin 4, the other end of the torsion spring 6 is fixed at the top end of the bolt 5, the shaft pin hole 11 comprises 3 communicated arch holes 12, the arch holes 12 are distributed in a regular pyramid shape, as shown in fig. 3 and 4, the lock core 1 is fixed on a door leaf through an inner lock box 8 and an outer lock box 7, a seal ring 10 is installed at the joint of the lock core 1, the inner lock box 8 and the outer lock box 7, the lock core 1 is square, a straight lock hole is formed on the surface, a square hole matched with the lock core 1 is formed on the rotating arm 3, when the self-locking isolation lock comprises, the rotating arm 3, the bolt 5 and the guide sleeve 2 are assembled together by the shaft 4 to form an assembly, the pin shaft 4 is fastened by using a rising rivet, the assembly is installed into the inner side of the door panel from the side surface of the door leaf after the torsion spring 6 is installed in place, and the guide sleeve 2 is fixed on the door panel by using a screw; the outer lock box is arranged 7 on an outer door plate, the lock cylinder 1 is inserted into a square hole in the rotating arm 3, the inner lock box 8 is arranged on an inner door plate, and the inner lock box and the outer lock box are screwed down by using countersunk screws 9. When the lock is used, the lock core 1 is screwed by a square key, the lock core 1 drives the rotating arm 3, and the rotating arm 3 drives the bolt 5 to slide in place in the guide sleeve 2, so that the isolation purpose is achieved, as shown in fig. 2. The rotating arm 3 can achieve self-locking at the initial position and the isolation position, and has the function of positioning and restricting shaking under the reaction force of the torsion spring 6.

Claims (6)

1. The utility model provides a from locking-type isolation lock, its characterized in that, includes lock core (1), spring bolt (5) and rocking arm (3), lock core (1) is fixed on rocking arm (3), pivot (4) are installed on rocking arm (3) top, pivot (4) movable mounting is in pivot pinhole (11) of spring bolt (5), pivot pinhole (11) include 3 communicating arch holes (12), arch hole (12) are regular pyramid distribution.

2. The self-locking isolation lock according to claim 1, wherein a torsion spring (6) is inserted into the shaft pin (4), and the other end of the torsion spring (6) is fixed on the top end of the bolt (5).

3. Self-locking isolating lock according to claim 1, characterised in that the bolt (5) is inserted horizontally movably in the guide sleeve (2).

4. Self-locking isolating lock according to claim 1, characterised in that the lock cylinder (1) is fixed on the door leaf by means of an inner lock box (8) and an outer lock box (7).

5. The self-locking isolating lock according to claim 1, characterized in that the joints of the lock cylinder (1) and the inner lock box (8) and the outer lock box (7) are provided with sealing rings (10).

6. The self-locking isolating lock according to claim 1, wherein the lock cylinder (1) is square, the surface of the lock cylinder is provided with a straight lock hole, and the rotating arm (3) is provided with a square hole matched with the lock cylinder (1).

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