CN2723634Y

CN2723634Y - Simple door lock

Info

Publication number: CN2723634Y
Application number: CN 200420016499
Authority: CN
Inventors: 谷红军; 谷红民
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-28
Filing date: 2004-07-28
Publication date: 2005-09-07
Anticipated expiration: 2014-07-28

Abstract

The utility model relates to a simple door lock. Its structure comprises a lock body whose one side is equipped with a stationary plane provided with a centre hole, and the other side is equipped with a hollow cavity; a tower spring and a lock core with two parallel bumps are equipped in the hollow cavity of the lock body, and a lock cover with two parallel grooves which is in mesh with the lock core is also equipped in the hollow cavity of the lock body. The center of the lock cover is equipped with a lock axle which penetrates through the centre hole of the lock body; the lock axle is fixedly connected with a lock hook by penetrating through the lock core and the lock body. A key is U-shaped, and the key is inserted into the two grooves of the lock cover, making the lock core disengage the mesh with the lock cover; the lock cover is rotated, then the lock hook swings with the lock cover, so the opening of the lock is realized; the key is pulled out, under the function of the spring force, the lock core returns to the position engaging with the lock cover, and then the lock is locked again. The utility model has the advantages of simple structure, convenient opening and reliable performance, it is convenient for maintenance, and the key is easy to prepare. The utility model is in particular suitable for the equipment such as the gas regulating voltage and the metering in the gas transmission ductwork, or is suitable for the use on the case or cabinet door of the facilities.

Description

Simple door lock

Technical field

The utility model relates to a kind of Simple door lock, is particularly suitable for combustion gas pressure regulating box, surge tank, gas metering case, the supporting use of metering cabinet, belongs to technical field of burglary prevention.

Background technology

In the gas supply pipe net, be absolutely necessary equipment or facilities such as combustion gas pressure regulation, metering, these combustion gas voltage adjusting devices and metering facility etc. generally all need to be assembled into a chest or cupboard the inside, and the door of chest or cupboard must be equipped with theftproof lock.The structure of the theftproof lock of Shi Yonging had following several in the past: 1, plain edition lock core, and adapted trough of belt sawtooth pattern key, inconvenience is installed, safeguarded to this lock construction complexity, damages easily, key is difficult for joining, and meets emergency and is difficult for opening; 2, adopt the pit type key, same complex structure, the key of lock of existing is difficult for joining, safeguards shortcomings such as inconvenient and fragile; 3, adopt the door lock of special-shaped key, complex structure in emergency circumstances is difficult to open door lock.In addition, the door lock of above-mentioned several structures, also having complex manufacturing technology, defectives such as polarization inconvenient or lock is poor, key is malfunctioning be installed in various degree.

Summary of the invention

Task of the present utility model provides a kind of Simple door lock, and it is simple in structure, and dependable performance has overcome the defective of prior art.

In order to finish the technical scheme that task of the present utility model takes is such.Simple door lock, comprise lock body in the structure, it simultaneously is a stationary plane, have centre bore, another side has cavity, the lock core that the turriform spring is housed in the lock body cavity and has the parallel projection of twice, the locking closure that has two parallel grooves that is meshed with lock core, there is the lock shaft that passes the lock body centre bore at the locking closure center, the another side of locking closure is the external surface of lock, lock shaft passes lock core and lock body and lock hook and is fastenedly connected, and the cavity bottom excircle of lock body one side is provided with one or two the 1/4 long cannelures of circular arc, and garden post Xiao of a projection is arranged on the lock shaft ipsilateral outer circumference surface of locking closure, the long cannelure of 1/4 circular arc that one side chamber inner bottom part of cylinder Xiao and lock body is opened is slidingly matched, and the anglec of rotation of restriction locking closure is 90 °, and key is a U-shaped, inserts in two grooves of locking closure with it, make the engagement of lock core disengagement and locking closure, the rotation locking closure, lock hook is swung thereupon, thereby realizes the unlatching of lock, extract key, under the effect of turriform spring force, lock core is returned to and the locking closure position of engagement, and tapered end is locked again.

Key one end is provided with two laths that are parallel to each other, and an end is a handle, is convenient to operation.

The utlity model has simple in structure, open advantages such as convenience, dependable performance, its processing, make easily, key is easily joined, and is convenient to maintenance.

Description of drawings

Fig. 1 is structural representation of the present utility model (shaft side figure).

Fig. 2 is the rear elevation of lock body.

Fig. 3 is the structural representation of key.

The implication of each label representative is as follows among the figure:

1, bolt 2, plain cushion 3, lock hook 4, lock body 5, turriform spring 6, lock core 7, projection 8, locking closure 9, lock shaft 10, groove 11, cylinder Xiao 12, circular trough 13, key 14, parallel strip 15, handle.

The specific embodiment

Particularly, structure of the present utility model describes with reference to the accompanying drawings as follows:

See shown in Figure 1, simple door is trivial, comprise lock body 4 in the structure, lock core 6, locking closure 8 and U-shaped key 13, wherein, lock body 4 is a fixed body, one side is a stationary plane, opposite side is a cavity structure, has centre bore perpendicular to stationary plane, and two apertures on the lock body 4 are used for and the door body is fixed, lock core 6 one sides are the plane, have centre bore perpendicular to lock core 6 planes, the both sides that are positioned at centre bore at lock core 6 another sides are provided with the projection 7 that twice are parallel to each other, and the one side of locking closure 8 is the external surface of lock, its another side center is provided with a lock shaft 9, and two grooves that are parallel to each other 10 that are meshed with the projection that is parallel to each other 7 on the lock core 6 are arranged in the both sides that are positioned at lock shaft 9 on the locking closure 8.See Fig. 2, the cavity bottom excircle of lock body 4 one sides is provided with two the 1/4 long cannelures 12 of circular arc.See Fig. 1, garden post Xiao 11 that one projection is arranged on the outer circumference surface of the lock shaft ipsilateral of locking closure 8, garden post Xiao 11 is slidingly matched with the long cannelure of 1/4 circular arc that a side chamber inner bottom part of lock body 4 is opened, and the anglec of rotation of restriction locking closure is 90 °, groove 10 engagements that lock core 6 has one of projection to face down on the lock shaft 9 that is installed in locking closure 8 by its center pore area and opens with locking closure, during installation, turriform spring 5 is pressed in the cavity of lock body 4 one sides by locking closure 8.Key 13 is a U-shaped, and an end is provided with two laths that are parallel to each other 14, and the other end is provided with handle 15, is convenient to operation.Lock shaft 9 tops are provided with Sifangtai and bolt hole, and centre bore and lock hook 3 that lock shaft 9 passes lock body 4 are fastenedly connected by bolt 1 and plain cushion 2, and the other end of lock hook and another door or cabinet are hung and be one, realize the purpose of locking a door.When opening door lock, only need the parallel strip 14 of key 13 is inserted in the parallel groove of lock shaft both sides on the locking closure, make lock core 6 and locking closure 8 break away from engagement, rotation locking closure 8, lock hook 3 is swung thereupon, thereby realizes the unlatching of lock.Extract key 13, under the effect of turriform spring 5 spring forces, lock core 6 is returned to groove 10 positions of engagement with locking closure 8 again, and tapered end is locked again.

This Simple door lock is particularly suitable for using on the case of equipment such as the combustion gas pressure regulation, metering in the gas supply pipe net or facility or the cabinet door.

Claims

1, a kind of Simple door lock, comprise lock body (4) in the structure, lock core (6), locking closure (8) and U-shaped key (13), it is characterized in that: lock body (4) is a fixed body, one side is a stationary plane, opposite side is a cavity structure, have centre bore perpendicular to stationary plane, lock core (6) one side is the plane, have centre bore perpendicular to lock core (6) plane, the both sides that are positioned at centre bore at lock core (6) another side are provided with the projection (7) that twice are parallel to each other, the one side of locking closure (8) is the external surface of lock, its another side center is provided with a lock shaft (9), there are two grooves that are parallel to each other (10) that are meshed with the projection that is parallel to each other (7) on the lock core (6) both sides of lock shaft (9), the cavity bottom excircle of lock body (4) one sides is provided with the long cannelure (12) of 1/4 circular arc, garden post Xiao (11) that one projection is arranged on the lock shaft ipsilateral outer circumference surface of locking closure (8), garden post Xiao (11) is slidingly matched with the long cannelure of 1/4 circular arc of a side chamber inner bottom part of lock body (4), lock core (6) is installed in by its centre bore on the lock shaft of locking closure (8) and is meshed with groove (10) on the locking closure (8), turriform spring (5) is pressed in the cavity of lock body (4) one sides by locking closure (8), and centre bore and lock hook (3) that the lock shaft (9) on the locking closure (8) passes lock body (4) are fastenedly connected.

2, by the described Simple door lock of claim 1, it is characterized in that: key (13) one ends are provided with two laths that are parallel to each other (14), and an end is handle (15).

3, by the described Simple door lock of claim 1, it is characterized in that: lock shaft (9) top is provided with Sifangtai and bolt hole, and lock hook (3) is fastenedly connected with lock shaft (9) by bolt (1) and plain cushion (2).

4, by the described Simple door lock of claim 1, it is characterized in that: the cavity bottom excircle of lock body (4) one sides is provided with two the 1/4 long cannelures of circular arc.