CN2416201Y

CN2416201Y - Hook lock

Info

Publication number: CN2416201Y
Application number: CN 00203000
Authority: CN
Inventors: 张立民
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-27
Filing date: 2000-01-27
Publication date: 2001-01-24
Anticipated expiration: 2010-01-27

Abstract

The utility model belongs to the class of a lock appliance, which particularly relates to a lock of hook heads, which is especially suitable for theftproof doors. A lock body of the lock of hook heads of the utility model is provided with a guide pin (9) which is positioned between an upper hook head (2) and a lower hook head (3) and is fixed to the lock body (1). Back parts of hook heads are provided with three working surfaces which are slid with the guide pin (9) for realizing three actions of horizontal reciprocation, open closure and self-locking of the hook heads. Abdominal parts of the hook heads are provided with a restoring flange which is slid with an upper and a lower slide ways of a hollow cavity of the lock body for realizing restoring closure after the hook heads are opened to ensure the good contact of the hook heads and the guide pin. The utility model has the advantages of simple structure, flexible operation, accuracy and reliability.

Description

A kind of hooked-head lock

The utility model belongs to lockset kind, is specifically related to a kind of hooked-head lock that is specially adapted on the security door.

At present, commercially available hooked-head lock is made up of lock body, arm-tie, front plate, rear plate, upper hookhead, following eave tile.Upper hookhead, following eave tile place between front plate, the rear plate, and the afterbody of eave tile is hinged on the clamping plate by bearing pin; Eave tile is equipped with an arc chute, and clamping plate are equipped with upper and lower two parallel chutes; Fixing upper and lower two guide fingers on the lock body cavity two side, this guide finger installs simultaneously among the parallel groove of the arc chute of eave tile and clamping plate.The pulling arm-tie drives clamping plate and does to stretch out or recoil movement in the lock body cavity, simultaneously, upper and lower eave tile is made eave tile along arc chute and is opened therewith or closing motion in clamping plate, thereby when realizing that hooked-head lock dead bolt (clamping plate) is locked in stretching into frame hole, opens the purpose that eave tile catches on the doorframe mouth.This commercially available hooked-head lock structure is complicated, and manufacturability is poor, the cost height.

The purpose of this utility model is to provide a kind of structure comparatively simple, good manufacturability, the hooked-head lock that cost is low.

The technical solution of the utility model is: a kind of hooked-head lock is made up of lock body, arm-tie, front plate, rear plate, upper hookhead, following eave tile.The afterbody of upper and lower eave tile is hinged between the forward and backward clamping plate, be characterised in that guide finger is between upper and lower eave tile, guide finger is fixed on the lock body cavity two side, and place among the horizontal concrete chute at forward and backward clamping plate middle part, the upper and lower eave tile back side leans against on the guide finger, follow clamping plate realization level back and forth and in clamping plate, realize opening or closed for making eave tile, and open and to realize three actions of self-locking later, the eave tile back is provided with three work planes continuously, it is horizontal working in reciprocating mode face, the opening and closing work plane, the self-locking work plane; For making eave tile (particularly descending eave tile) after removing self-locking, among in time successfully entering the lock body cavity along axis of guide retraction, the eave tile belly is provided with the flange that resets, this flange enters in the vacancy of lock body cavity front end after eave tile opens, and this flange then slides along the upper and lower slideway of lock body cavity and avoids eave tile to open after the eave tile closure.

The utility model has the advantages that and have only a chute and a guide finger on the clamping plate, structure is greatly simplified, good manufacturability, and cost is lower, operates steadily, and reliable operation is used easy to maintenance.

Further describe below in conjunction with embodiment and accompanying drawing:

Embodiment: H-A type hooked-head lock

Fig. 1 is a H-A type hooked-head lock front view;

Fig. 2 is a H-A type hooked-head lock left view;

Fig. 3 is a H-A type hooked-head lock vertical view;

Fig. 4 is the schematic diagram of eave tile.

Among the figure, 1 lock body; 2 upper hookheads; 3 times eave tiles; 4 arm-ties; 5 sliding axles; 6 front plates; 7 rear plates; 8 hinges; 9 guide fingers; The flat working in reciprocating mode face of 10 eave tile backwaters; 11 eave tiles back of the body opening and closing work plane; 12 eave tiles back of the body self-locking work plane; The 13 eave tile abdomens flange that resets.

H-A type hooked-head lock structure working principle: be a rectangle in the middle of the lock body (1) Cavity, lock body two sides of tail face is equipped with horizontal concrete chute, and arm-tie (4) is contained in lock body In the rectangular channel of afterbody above and below, a skewed slot is arranged on the arm-tie, by being fixed on Sliding axle (5) on the clamping plate (7) is with the skewed slot on the arm-tie and the water on the lock body Level and smooth groove is linked to be a kinematic pair, i.e. the upper and lower motion of arm-tie drives the clamping plate level Move back and forth, eave tile is fixed on the clamping plate by hinge (8), therefore works as arm-tie and drives During moving clamping plate horizontal movement, eave tile is thereupon motion also, and clamping plate stretch out the lock body cavity The time, the horizontal reciprocating working face (10) of eave tile back is along being fixed on the lock body Guide lock (9) is upper to slide, when the opening and closing working face that slides into the eave tile back (11) time, eave tile opens and exposes clamping plate, simultaneously, and the flange that resets of eave tile belly (13) enter among the vacancy of lock body cavity front portion; Continue to slide into the eave tile back of the body On self-locking working face (12) time, eave tile namely is lockable, this moment clamping plate stretch out To the limit, when unblanking, when just arm-tie (4) driving clamping plate are return, head Elder generation's eave tile self-locking working face (12) slides backwards on the self-locking solution along guide finger (9) Remove, opening and closing working face (11) is started working, and eave tile begins closure, closure When finishing, the vacancy of the flange that resets (13) of eave tile belly before the lock body In be retracted in the upper and lower slideway of cavity, force the horizontal reciprocating work of the eave tile back of the body Face is return smoothly, and clamping plate and eave tile are reentered among the lock body cavity, and is complete Become to stretch out (locking)-eave tile and open (catching on)-eave tile self-locking-eave tile self-locking Releasing-eave tile closure (take off and collude)-return (unblanking) this overall process.

H-A type hooked-head lock run action flexibly, accurately, has reliably been strengthened steel The pick-proof of antitheft door has improved prevention technique unlatching and destructive open Performance.

Claims

1, a kind of hooked-head lock, by lock body (1), arm-tie (4), front plate (6), rear plate (7), upper hookhead (2), following eave tile (3), guide finger (9) is formed, on, before the afterbody of following eave tile is hinged on, between the rear plate, it is characterized in that: guide finger (9) is positioned at, between the following eave tile, guide finger (9) is fixed on the cavity two side of lock body (1), and before placing, among the horizontal concrete chute at rear plate middle part, on, the following eave tile back side leans against on the guide finger, upper hookhead (2) and following eave tile (3) back are provided with three work planes continuously, it is horizontal working in reciprocating mode face (10), opening and closing work plane (11), self-locking work plane (12), the belly of eave tile are equipped with the flange that resets (13).