WO2016192463A1

WO2016192463A1 - Locking device

Info

Publication number: WO2016192463A1
Application number: PCT/CN2016/078964
Authority: WO
Inventors: 张宗志
Original assignee: 上海欧一安保器材有限公司
Priority date: 2015-06-03
Filing date: 2016-04-11
Publication date: 2016-12-08
Also published as: CN104929436A; CN104929436B

Abstract

Disclosed is a locking device, comprising a power mechanism (1), a connecting rod (3), a braking unit and a lock catch (5), wherein a power output end of the power mechanism (1) is connected to one end of the connecting rod (3), the other end of the connecting rod (3) is connected to the braking unit, and the braking unit drives the lock catch (5) to rotate; and the power mechanism (1) is connected to the connecting rod (3) via a gear so as to transmit the power of the power mechanism (1) to the connecting rod (3).

Description

Locking device

Technical field

The present invention relates to a lock, and more particularly to a lock device.

Background technique

When the door is closed, the locking tongue of the door lock installed on the door panel enters the groove of the locking device. After the locking buckle fixes the locking tongue, the most common thing in real life is to use the key to open, that is, use the key to make the locking tongue Shrink backwards. However, after the electronically controlled locking device is installed, the power-on opening mode can also be used to release the locking buckle of the locking device, and the door can be pushed open even if the locking tongue does not shrink backward.

However, the most common and difficult situation that electronically controlled latches encounter is due to the state of the door, which exerts a pre-stress on the lock. This pre-stress is either due to the deformation of the door panel, or due to the pressure difference between the inside and outside of the door panel, or because the door opener inadvertently pushes the door panel. In short, an additional pre-pressure is applied between the rotary lock and the slide stop. The friction between them is increased, so that the force generated by the electromagnet is insufficient to overcome the frictional force, thereby causing the failure of the electronically controlled unlocking.

Summary of the invention

In order to solve the above problems, the present invention provides a latching device that overcomes a preload by rigid engagement of a gear.

In order to achieve the above object, the present invention provides a locking device including a power mechanism, a connecting rod, a braking unit and a lock. The power output end of the power mechanism is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the braking unit. The brake unit drives the lock to rotate; the power mechanism and the connecting rod are connected by gears to transmit the power output of the power mechanism to the connecting rod.

As a further optimization of the present invention, the power output end of the power mechanism is provided with a power gear, and one end connected to the power mechanism is provided with a transmission gear that can mesh with the power gear.

As a further optimization of the present invention, the brake unit includes a brake block connected to the connecting rod, and a retractable brake shaft, the brake shaft can be abutted at both ends of the brake block, and both ends of the brake block have an outward direction The protruding end contracts the brake shaft to a minimum distance when the brake shaft abuts against the ends of the brake block.

Claims

As a further optimization of the present invention, the brake shaft is externally provided with a brake shaft return spring. When the ends of the brake block are out of contact with the brake shaft, the brake shaft is restored to the original by the brake shaft return spring. length.

As a further optimization of the present invention, the locking device includes a housing through which the latch is coupled to the housing, and the ends of the latch are formed with a detent that abuts the end of the brake shaft.

As a further optimization of the invention, the end of the brake shaft remote from the brake block is a brake chuck, the brake chuck being an outwardly extending projection which is engageable with the brake groove.

As a further optimization of the present invention, the lock is provided with a torsion spring that drives the lock to rotate when the portion of the lock that is exposed to the outer casing moves to a position where the lock tongue is released to move the portion of the lock exposed from the outer casing back to block The position of the bolt.

As a further optimization of the invention, the connecting rod and the transmission gear are connected by a connecting pin.

As a further optimization of the present invention, the power gear and the transmission gear are both bevel gears.

The invention has the advantage that

(1) In the locking device of the present invention, the output end of the power mechanism transmits power through gear meshing, and is not easily deformed under the action of external preload;

(2) In the locking device of the present invention, the output end of the power mechanism transmits power through gear meshing, which not only has high transmission efficiency, but also has accurate transmission ratio;

(3) Simplifies the structure of the locking device and avoids the occurrence of accidental unlocking operation, making the door lock more secure and reliable.

BRIEF abstract

Figure 1 is a front elevational view showing the locked state of the locking device of the present invention;

Figure 2 is a cross-sectional view taken along line C-C of Figure 1;

Figure 3 is a cross-sectional view taken along line F-F of Figure 1;

Figure 4 is a front elevational view showing the unlocking state of the locking device of the present invention;

Figure 5 is a cross-sectional view taken along line D-D of Figure 4;

Figure 6 is a cross-sectional view taken along line E-E of Figure 4;