CN201347658Y

CN201347658Y - Door lock

Info

Publication number: CN201347658Y
Application number: CNU2009201365765U
Authority: CN
Inventors: 黄朝强; 方惠会
Original assignee: XIAMEN JINLUN TECHNOLOGY Co Ltd
Current assignee: XIAMEN JINLUN TECHNOLOGY Co Ltd
Priority date: 2009-01-23
Filing date: 2009-01-23
Publication date: 2009-11-18
Anticipated expiration: 2019-01-23

Abstract

The utility model discloses a door lock. The door lock comprises a pin tumbler lock containing a lock core, an outer lock cam, a right handle used for mounting the outer lock cam, a latch with a gear rack, a gear, a handle inside a door, a left handle outside the door, a left gear rack box and a right gear rack box; the handle inside the door and the left handle outside the door are used for rotating the gear; the left gear rack box and the right gear rack box are taken as gear rack channels; the lock body of the outer lock cam is arranged in the center hole of the right handle; the lock core of the outer lock cam rotates a lock opening pin under the drive of a key; the lock opening pin drives the tongue of the pin tumbler lock inside the door; the tongue shrinks for locking or unlocking the latch; and the handle inside the door and the left handle drive the gear to be matched with the gear rack, so as to drive the latch to open or close the door. The door lock is characterized in that the right handle is divided into an outer layer and an inner layer; both the inner layer and the lock body are fixed on the outer side of a right door plate through screws; the outer layer is sleeved on the outer surface of the inner layer; the outer layer can freely rotate relative to the inner layer; and a limiting structure for preventing the outer layer from being pulled out is arranged between the outer layer and the inner layer. The structure guarantees the anti-theft function of the door lock, and has high security.

Description

Gate lock

Technical field

The utility model relates to a kind of gate lock, is specially adapted to contain the Lock for two-wind door of tooth bar bolt.

Background technology

In the prior art, the gate lock (Lock for two-wind door) that contains the tooth bar bolt is formed by the inside door handle 1 of cylinder lock 9 (containing lock core), outer tapered end 7, the right handles 8 of the outer tapered end 7 of dress, the bolt of being with tooth bar 5, gear 2, transmitting gear 2 and left handle outdoors 3 and as the left tooth bar box 4 and the right tooth bar box 6 of tooth bar 5 passages as depicted in figs. 1 and 2.

From Fig. 1 and Fig. 2 as seen, the outer tapered end 7 of existing gate lock all is mounted on right handles 8 centre bores, and left handle 3 outward appearances that are used for transmitting gear 2 on right handles 8 and other Yishanmen are identical, as cylindrical, taper type, ball-type etc., symmetry is installed, thereby elegant in appearance, as shown in Figure 1.Wherein, the fixed part of outer tapered end 7 is that the tensioned screw 10 that lock body 71 and right handles 8 are all stretched out in door is fixed on the door-plate, as shown in Figure 3.

During use, insert and screw key in the lockhole of tapered end 7 outside, the rotation section of outer tapered end 7 is the just rotatable latch of unblanking of lock core 72, the latch of unblanking is transmitted in a tongue of interior cylinder lock 9, make interior cylinder lock 9 tongue stretch out the locking of locking bolt or withdrawal releasing pair of latches, under the released state of bolt, cooperate with tooth bar 5 by inside door handle 1 and left handle 3 transmitting gears 2 again to drive, thereby close the door or opening door operation in bolt.And if lockhole does not insert key, lock core 72 just links to each other with lock body 71, just also is connected with right handles 8.Because right handles 8 is exposed to outside the door-plate, and has only two pieces of primary screws 10 to be strained and fixed, so right handles 8 is easily turned or beat damage by tool holdings such as pipe wrench, sledgehammers.When right handles 8 is firmly clamped when turning by instruments such as pipe wrench, elongated holding screw 10 just may be twisted bending deformation, thereby right handles 8 is rotated.So just may under the situation of not inserting key, can turn right handles 8 and lock core 72, be opened until door with pipe wrench.Therefore, existing gate lock has the danger that is easily turned and open by tool holder such as pipe wrench.

The utility model content

The purpose of this utility model is to provide a kind of gate lock, by the danger of TOs such as pipe wrench, improves safety effectively to avoid under the situation of not inserting key.

In order to reach above-mentioned purpose, solution of the present utility model is:

Gate lock is formed by the inside door handle of the cylinder lock that contains lock core, outer tapered end, the right handles of the outer tapered end of dress, the bolt of being with tooth bar, gear, transmitting gear and left handle outdoors and as the left tooth bar box and the right tooth bar box of tooth bar passage; The lock body of outer tapered end is installed on the centre bore of right handles, and the lock core of outer tapered end rotates the latch of unblanking under the drive of key, and the latch of unblanking is transmitted in the tongue of an interior cylinder lock, and flexible the cooperation with the tongue draw-in groove of bolt of this tongue carried out lock door door bolt or release; Inside door handle and the cooperation of left handle turning gear wheel and rack are transmitted in bolt and open the door or close the door; It is characterized in that: right handles is divided into skin and internal layer, internal layer and lock body are fixed on the outside of right door-plate by screw together, external surface and skin that skin is enclosed within internal layer can freely rotate relative to internal layer, have between skin and the internal layer to prevent the outer next position limiting structure of being pulled up.

Described position limiting structure be the external surface of internal layer form towards the inner end of door-plate little and towards the outer end of door-plate big step or tapering, outer field inner surface is then corresponding form towards the inner end of door-plate little and towards the outer end of door-plate big step or tapering.

After adopting such scheme, the utility model compared with prior art: from outside watch, still shape is consistent with the left handle outdoors of transmitting gear for the right handles of the outer tapered end of band, installation is symmetrical, and is elegant in appearance.Different is, the skin of the right handles after the improvement is rotary, and the right handles of the outer tapered end of the band of existing gate lock can not be rotated.Because right handles is outer free to rotate; thereby protection internal layer and lock core can be by any tool holder and rotations; by the danger of TOs such as pipe wrench, guarantee the anti-theft feature of gate lock effectively to avoid under the situation of not inserting key, improved safety.

Description of drawings

Fig. 1 is that the Lock for two-wind door that contains the tooth bar bolt is faced schematic appearance;

Fig. 2 is the gate lock structure vertical view that existing preferred embodiment contains the tooth bar bolt;

Fig. 3 is the gate lock right handles structure side view that existing preferred embodiment contains the tooth bar bolt;

Fig. 4 is the right handles structure vertical view of the utility model embodiment one;

Fig. 5 is the right handles structure side view of the utility model embodiment one;

Fig. 6 is the right handles structure vertical view of the utility model embodiment two;

Fig. 7 is the right handles structure side view of the utility model embodiment two.

The specific embodiment

As Fig. 4 and shown in Figure 6, the utility model provides two embodiment of gate lock, is formed by the inside door handle 1 of the cylinder lock 9 that contains lock core, outer tapered end 7, the right handles 8 of the outer tapered end 7 of dress, the bolt of being with tooth bar 5, gear 2, transmitting gear 2 and left handle outdoors 3 and as the left tooth bar box 4 and the right tooth bar box 6 of tooth bar 5 passages.

Wherein, the lock body 71 of outer tapered end 7 is installed on the centre bore of right handles 8, and the lock core 72 of outer tapered end 7 rotates the latch of unblanking under the drive of key, and the latch of unblanking is transmitted in a tongue of interior cylinder lock 9, this tongue is flexible to be cooperated with the tongue draw-in groove of bolt, locks bolt or release; Inside door handle 1 and left handle 3 transmitting gears 2 cooperate with tooth bar 5, are transmitted in bolt and open the door or close the door.

Said structure is similar to existing gate lock, and improvement of the present utility model is:

Right handles 8 is divided into skin 81 and internal layer 82 double-layer structures.

Wherein, internal layer 82 and lock body 71 are fixed on the outside of right door-plate by screw 10 together.

Outer 81 external surfaces that are enclosed within internal layer 82, outer 81 can freely rotate relative to internal layer 82, have between skin 81 and the internal layer 82 to prevent that skin 81 from pulling up next position limiting structure from internal layer 82.This position limiting structure specifically can be as shown in Figure 4 and Figure 5 or as shown in Figure 6 and Figure 7, the external surface of internal layer 82 form towards the inner end of door-plate little and towards the outer end of door-plate big step or tapering, inner surface outer 81 is then corresponding form towards the inner end of door-plate little and towards the outer end of door-plate big step or tapering, when internal layer 82 is fixed on the door-plate, outer 81 is free to rotate, but, but make outer 81 limited are enclosed within on the internal layer 82 and can not pulled up by the step or the taper fit of the step of internal layer 82 or tapering and outer 81.

Like this, because the skin 81 of right handles 8 is free to rotate, thereby protection internal layer 82 and lock core 72 can not guaranteed the anti-theft feature of gate lock by any tool holder and rotation.From outside watch, still shape is consistent with the left handle outdoors 3 of transmitting gear 2 for the right handles 8 of being with outer tapered end 7, and symmetry is installed, and is elegant in appearance.Different is, the skin 81 of the right handles 8 after the improvement is rotary, and the right handles 8 of the outer tapered end 7 of the band of existing gate lock can not be rotated.

Certainly, the right handles 8 of one is modified into inside and outside two-layer concrete size and structure can be multiple, only provides two examples as shown in Figure 4 and Figure 5, as shown in Figure 6 and Figure 7 and describe.Above embodiment is not the qualification to the utility model claim, and all equivalent variations of being done with this spirit all should fall into protection domain of the present utility model.

Claims

1, gate lock is formed by the inside door handle of the cylinder lock that contains lock core, outer tapered end, the right handles of the outer tapered end of dress, the bolt of being with tooth bar, gear, transmitting gear and left handle outdoors and as the left tooth bar box and the right tooth bar box of tooth bar passage; The lock body of outer tapered end is installed on the centre bore of right handles, and the lock core of outer tapered end rotates the latch of unblanking under the drive of key, and the latch of unblanking is transmitted in the tongue of an interior cylinder lock, and flexible the cooperation with the tongue draw-in groove of bolt of this tongue carried out lock door door bolt or release; Inside door handle and the cooperation of left handle turning gear wheel and rack are transmitted in bolt and open the door or close the door; It is characterized in that: right handles is divided into skin and internal layer, internal layer and lock body are fixed on the outside of right door-plate by screw together, external surface and skin that skin is enclosed within internal layer can freely rotate relative to internal layer, have between skin and the internal layer to prevent the outer next position limiting structure of being pulled up.

2, gate lock as claimed in claim 1, it is characterized in that: described position limiting structure be the external surface of internal layer form towards the inner end of door-plate little and towards the outer end of door-plate big step or tapering, outer field inner surface is then corresponding form towards the inner end of door-plate little and towards the outer end of door-plate big step or tapering.