CN203129764U - Square tongue lock of door - Google Patents

Abstract

The utility model discloses a square tongue lock of a door. The square tongue lock of the door comprises a box body, a panel, two touch tongues, a square tongue, an installation hole, a rivet fixing device, a pull rod and a box cover and further comprises a square core, a connection screw, a key jack opening, a reversing screw, a connection bolt, a reversing clamping cushion, a knob, a locking tongue spring and touch tongue springs. In time of using the square tongue lock of the door, the panel is fixed on a fixed seat of a door body. The panel is arranged in front of the box body of the square tongue lock of the door, a cavity is arranged in the middle of the box body, and the pull rod is arranged at the tail portion of the cavity. The front end of the square tongue and the front ends of the touch tongues extend out of the panel, the box cover is arranged outside the box body, and the rest parts are positioned in the cavity. The locking tongue spring is arranged between the square tongue and the box body, and the touch tongue springs are arranged between the touch tongues and the fixed seat. Compared with the prior art, the square tongue lock of the door has the advantages that the structure is simple and reasonable, in time of closing the door, the locking tongue extends out automatically through the touch tongues so as to lock the door, a theft can not down press the locking tongue through tinfoil so that the door lock can not be opened, and therefore anti-theft performance is strong.

Description

A kind of door side tongue lock

Technical field

The utility model relates to a kind of lock, relates in particular to a kind of door side tongue lock

Background technology

Home-use lock dead bolt generally has oblique tongue, and two kinds of Square lock bolts stretch out indentation with knob control dead bolt, and knob is in transverse state during locking generally.

The lockset most important is safety factor, and along with development of science and technology, the kind of lockset has got more and more, as president's lock, bathroom lock, passage lock, balcony lock, classroom lock, connection lock, storage lock etc.The lockset of these different titles plays a different role respectively

Lock core and dead bolt are extremely important to the quality of lockset, and traditional Square lock bolt can not be resisted the violence damage behavior of using the crowbar that resembles.

At present, the dead bolt modular construction that general door drum type brake door lock or ball lock adopt is fairly simple, firm inadequately, and function is perfect inadequately, will just can close the door by the button of lower tail when locking a door, and operation is trouble comparatively.Drum type brake door lock or ball are locked the dead bolt parts that adopt does not simultaneously have insurance function, and a little less than the anti-theft capability, when locking the door, others can depress dead bolt with sheet tinfoil, thereby opens door lock.

Summary of the invention

The purpose of this utility model provides a kind of door side tongue lock, has outstanding security protection performance.

Its unblank principle and the tradition principle of unblanking is identical, and core all is circular object, can freely rotate.At first, core all is to adopt harder metal to make, and as copper, is drilled with several little holes at the core of circle, is called the pellet shot from a slingshot hole, and the effect of little hole is to shoot son and spring.The effect of pellet shot from a slingshot is to block core, and core can not at will be rotated.

What the principle of unblanking played a role is core, pellet shot from a slingshot and spring.When the pellet shot from a slingshot hole of lock body overlapped fully with the pellet shot from a slingshot hole of core, the spring performance elastic force effect in the lock body pellet shot from a slingshot hole upwards ejected the pellet shot from a slingshot in the lock body pellet shot from a slingshot hole.Pellet shot from a slingshot in the lock body pellet shot from a slingshot hole by jacking in the core pellet shot from a slingshot hole.Original pellet shot from a slingshot is upwards pushed up at one time in the core pellet shot from a slingshot hole.Owing to have a long raised line to block in the core keyhole, stop the pellet shot from a slingshot in the core pellet shot from a slingshot hole, pellet shot from a slingshot is not ejected outside the pellet shot from a slingshot aperture, take off out.Partly length jacking has just been arranged in the core pellet shot from a slingshot hole under spring action, when the pellet shot from a slingshot in the lock body pellet shot from a slingshot hole has sticked in the core pellet shot from a slingshot hole, just core has been blocked, blocked circular object, circular object can't arbitrarily be rotated.At this moment, lock is to be in locking state.After stretching key and entering the core keyhole, teeth groove on the key the core pellet shot from a slingshot to lower compression, just the pellet shot from a slingshot in the core pellet shot from a slingshot hole is overwhelmed, flatten the place, another side aperture in core pellet shot from a slingshot hole, at this moment lock in the body pellet shot from a slingshot hole all pellets shot from a slingshot since by pellet shot from a slingshot in the core pellet shot from a slingshot hole to the effect that presses down, also all be driven plain lock body pellet shot from a slingshot aperture, get back in the lock body pellet shot from a slingshot hole.At this moment, the pellet shot from a slingshot in the lock body pellet shot from a slingshot hole can not stick in the core pellet shot from a slingshot hole, and the pellet shot from a slingshot that is pressed down in the core pellet shot from a slingshot hole can not be depressed in the pellet shot from a slingshot hole that enters the lock body, has not had thing to block circular core in other words.Available key reverses core and rotates then, then drives the office in the lock body after core rotates, and lock is opened.This is the principle of unblanking.

The utility model principle of unblanking is identical with traditional cylinder lock, and just structure has been done further improvement.

The utility model is achieved by the following technical solution: a kind of door side tongue lock, it is characterized in that, and comprise box body, panel bumps tongue, square tongue, installing hole, rivet fastening devices, pull bar, lid eight parts are formed, and it also comprises Fang Xin, connecting screw in addition, the key hole mouth, commutation screw, connecting bolt, commutation card pad, knob, latch bolt spring, bump the tongue spring section, in the time of use, panel is fixed on the holder of a body, tongue lock box body front, described door side is set to panel, the middle part is cavity, at the afterbody of cavity pull bar is installed, square tongue and bump the tongue front end and stretch out from panel, the box body outside is lid, other parts are positioned at cavity the inside, between square tongue and box body latch bolt spring are installed, and bump the tongue spring bumping to be equipped with between tongue and the holder, the afterbody cylinder lever connecting rod of dead bolt, one side of pull bar is protruded and is provided with block, and panel is installed on the holder, and the rivet fastening devices is fixed on the body holder, described side's tongue lock comprises two and bumps tongue, bumps tongue both sides, the tongue side of being distributed in.

The utility model compared with prior art has following advantage: simple and reasonable, and dead bolt is stretched out and lock the door by bumping tongue closing the door, make the robber dead bolt not depressed the unlatching door lock with tinfoil, theftproof performance is stronger.

Description of drawings

Fig. 1 is schematic appearance of the present utility model

Fig. 2 is the utility model cut-away view

Wherein box body 1, and panel 2 bumps tongue 3, square tongue 4, and installing hole 5, rivet fastening devices 6, pull bar 7, lid 8, square core 9, connecting screw 10, key hole mouth 11, commutation screw 12, connecting bolt 13, commutation card pad 14,16, the second on knob 15 screws bump tongue 17.

The specific embodiment

As Fig. 1, Fig. 2, shown in, the utility model comprises box body 1, and panel 2 bumps tongue 3, second is bumped tongue 17, square tongue 4, installing hole 5, rivet fastening devices 6, pull bar 7 and lid 8, its side's of comprising core 9 also in addition, connecting screw 10, key hole mouth 11, commutation screw 12, connecting bolt 13, commutation card pad 14 and knob 15, the top of box body 1 is lid 8, box body 1 front end is panel 2, and the middle part is cavity, at the afterbody of cavity knob 15 is installed, bump tongue 3 and square tongue 4 front ends stretch out from panel 2, other parts are positioned at cavity the inside, between square tongue 4 and box body 1 latch bolt spring are installed, and bump the tongue spring bumping to be equipped with between tongue 3 and the box body 1, the afterbody cylinder lever connecting rod 7 of side's tongue 4, a side of pull bar 7 is protruding with block.

Knob 15 is connected with the key hole mouth.

Principle of the present utility model is as follows: during use, key is inserted key hole mouth 11, and rotation, knob 15 is connected to dead bolt, and in the dead bolt meeting retraction box body 1, door is opened, and is rotated counterclockwise clockwise, and dead bolt can stretch out box body 1, and door is closed.

Above content be in conjunction with concrete preferred embodiment to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the those of ordinary skill under the utility model, under the prerequisite that does not break away from this utility model thinking, can also make simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims (1)

1. door side's tongue lock is characterized in that, comprises box body, panel bumps tongue, square tongue, installing hole, rivet fastening devices, pull bar, lid eight parts are formed, and it also comprises Fang Xin, connecting screw in addition, the key hole mouth, commutation screw, connecting bolt, commutation card pad, knob, latch bolt spring, bump the tongue spring section, in the time of use, panel is fixed on the holder of a body, tongue lock box body front, described door side is set to panel, the middle part is cavity, at the afterbody of cavity pull bar is installed, square tongue and bump the tongue front end and stretch out from panel, the box body outside is lid, other parts are positioned at cavity the inside, between square tongue and box body latch bolt spring are installed, and bump the tongue spring bumping to be equipped with between tongue and the holder, the afterbody cylinder lever connecting rod of dead bolt, one side of pull bar is protruded and is provided with block, and panel is installed on the holder, and the rivet fastening devices is fixed on the body holder, described side's tongue lock comprises two and bumps tongue, bumps tongue both sides, the tongue side of being distributed in.

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