CN2320757Y

CN2320757Y - Locking mechanism

Info

Publication number: CN2320757Y
Application number: CN 97231146
Authority: CN
Inventors: 韩贺
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-29
Filing date: 1997-12-29
Publication date: 1999-05-26
Anticipated expiration: 2007-12-29

Abstract

The utility model relates to a structure which belongs to an anti-theft protection matching device. The utility model has the following characteristics: a gear casing is vertically provided with a gear rack; the gear rack is fixed in a slide groove; the slide groove is coupled with the gear rack into a gear wheel; the gear wheel is fixed on a rotor axis; a cam is fixed on the rotor axis simultaneously; the center of the rotor axis is provided with a flat bar with a handle. The other side of the gear wheel is provided with a jack; the jack is arranged on the jack axis; by the rotation of the handle, the cam drives the gear wheel to rotate and the gear wheel drives the gear rack to move ups and downs; when the gear rack moves upward, the jack is locked; when the gear rack moves downward, the jack is opened; the gear rack moves downward to the original position. The utility model has the advantages of simple structure, convenient installation and operation, gear rack coupling, good protection property and firm and durable structure.

Description

A kind of retaining mechanism

The utility model belongs to the anti-corollary apparatus of forcing open the door.

At present, anti-retaining mechanism of forcing open the door all adopts the fixedly method of the direct locking of locking bar of disk both sides, both sides on the disk of a hand-screw are respectively with the fixing pole of rotating shaft, pole is stretched out from the both sides up and down of door respectively, to reach the purpose of locking, the dead bolt of door lock all connects with disk with manual handle, no matter be lock core or manually all can reach and make the pick-proof door locked, then open in the other direction, this kind is simple in structure, it is also convenient to use, generally from indoor interim locking with regard to hell to pay, give anti-force open the door to use make troubles.

For the locking that solves various devices connects, the purpose of this utility model provides a kind of retaining mechanism, utilizes tooth bar, gear, device such as very heavy to realize the purpose of safe locking.

The structure design of the utility model is achieved in that retaining mechanism is that tooth bar vertically is housed in gear-box, tooth bar is fixed in the chute, what be meshed with tooth bar is gear, gear is fixed in the rotating shaft, one cam is housed in this rotating shaft simultaneously, be inserted with a flat bar in the rotating shaft, the external end head of flat bar is fixed with turning handle, the below of cam has a slotted hole, be fixed with shifting shaft on the circular hole internal gear, be equipped with at the opposite side of gear very heavy, very heavy being fixed on the very heavy axle, on the very heavy axle return spring is housed simultaneously, makes very heavy being pressed on the gear.

The advantage of the utility model; Simple in structure, easy to install, adopt tooth bar to connect, move flexibly, the strick precaution performance is good, sturdy and durable.

The utility model detailed structure is provided by following examples and accompanying drawing.

Fig. 1 is a kind of locking mechanism structure schematic diagram.

Its structure is labeled as 1. tooth bars by shown in the accompanying drawing; 2. gear; 3. cam; 4. slotted hole; 5. shifting shaft; 6. very heavy; 7. spring; 8. spring vertical rod; 9. very heavy axle; 10. be with the flat bar of handle; 11. rotating shaft; 12. gear-box.

Its course of work: turning handle 10, connect a flat bar on the handle, just insert in the rotating shaft 11, drive rotating shaft, rotating shaft drives cam 3 again, cam 3 is provided with a slotted hole 4, fixes a shifting shaft on the position of corresponding gear in slotted hole 4, when cam rotation, slotted hole on the cam drives shifting shaft again, shifting shaft is driven gear again, and gear rotates and the interlock tooth bar moves upward, when tooth bar moves to required summit, in the very heavy tooth root that under the pressure of spring, just in time enters gear, tooth bar is fixed on certain position, finishes tooth bar locking, when the need tooth bar moves down, the counter-rotation handle, cam and slotted hole rotate synchronously, and slotted hole has a distance apart from shifting shaft, when slotted hole forwards shifting shaft to, cam is opened very heavy, cam continues to drive shifting shaft and rotates, and the tooth bar of shifting shaft driven gear while with the gear interlock glides, and returns to original position.

Claims

1. retaining mechanism, it is characterized in that this retaining mechanism vertically is equipped with tooth bar (1) in gear-box (12), tooth bar (1) is fixed in the chute, what be meshed with tooth bar (1) is gear (2), gear (2) is fixed on the axle, on this axle, a cam (3) is housed simultaneously, be inserted with a flat bar (10) in the rotating shaft, the external end head of flat bar (10) is fixed with turning handle, and the below of cam (3) has a slotted hole (4), is fixed with shifting shaft (5) on the circular hole internal gear, opposite side at gear (2) is equipped with very heavy (6), very heavy (6) are fixed on the very heavy axle (9), on the very heavy axle (9) return spring (7) are housed simultaneously, make very heavy being pressed on the gear.