CN2377313Y

CN2377313Y - Door lock for automobile

Info

Publication number: CN2377313Y
Application number: CN 99228642
Authority: CN
Inventors: 孙方明
Original assignee: HESHAN VEHICLE FITTINGS FACTORY JIAOXI TOWN WUJIN CITY
Current assignee: HESHAN VEHICLE FITTINGS FACTORY JIAOXI TOWN WUJIN CITY
Priority date: 1999-06-15
Filing date: 1999-06-15
Publication date: 2000-05-10
Anticipated expiration: 2009-06-15

Abstract

The utility model relates to a door lock for automobiles, which is provided with a lock body, a lock body nut and a washer, wherein, a lock shaft and a lock shaft spring are arranged in a lock hole of the lock body, a lock-tongue is tightly fixed on the extended end of the lock shaft by the nut, the lock shaft spring is sheathed on the periphery of the lock shaft, one end of the lock shaft spring abuts on the step surface of the lock hole, the other end abuts on the shoulder of the lock shaft, the bottom surface of the lock body is provided with a cross slot, and a lock pin is fixed on the extended end of the lock shaft. The utility model has the advantages of simple structure, low manufacture cost and easy opening.

Description

Door lock for automobile

The utility model relates to a kind of Automotive lock.

Automobile both sides side door, the boot sliding door, fuel tank cap etc. all need with lock, and Chinese patent CN2140412Y discloses a kind of Automotive lock, this lock construction complexity, and upper and lower pellet shot from a slingshot is difficult to unblank after getting rusty, when water is entered, bursting by freezing easily when in the lock core dust being arranged, also is difficult to unblank.

The purpose of this utility model provides a kind of simple in structure, opens Door lock for automobile easily.

The technical scheme that realizes above-mentioned purpose is, a kind of Door lock for automobile, have lock body, lock body nut and floor clip, be provided with lock shaft and lock shaft spring in the lockhole of lock body, dead bolt is fixed on by nut on the overhanging end of lock shaft, and the lock shaft spring housing is contained in the periphery of lock shaft, and an end is resisted against on the step surface of lockhole, the other end is resisted against on the shoulder of lock shaft, has cross recess on the bottom surface of lock body, is fixedly connected with lock pin on the overhanging end of lock shaft.

For dust and water protection, be preferably in and be set with dirt-proof boot on the lock body, the flexible upset of this dirt-proof boot also covers lockhole.

After adopting technique scheme,, make the cross recess on the lock pin disengaging lock body bottom surface that is connected on the lock shaft, can rotate lock shaft, drive the dead bolt rotation, thereby realize opening the door or closing the door, so the open and close door is very convenient when key entangles the head of lock shaft and compresses lock shaft.After installing dirt-proof boot additional, that has avoided also that the general-utility car door lock exists easily gets rusty, water inlet back bursting by freezing or block the deficiency that is difficult to open because of dust.This lock construction is simple simultaneously, low cost of manufacture, low price.

The embodiment that provides below in conjunction with accompanying drawing is described in further detail the utility model.

Fig. 1 is that the master of Door lock for automobile described in the utility model looks sectional view;

Fig. 2 is the front view of the used key of Door lock for automobile shown in Figure 1;

Fig. 3 is the upward view of the lock body of Door lock for automobile shown in Figure 1;

Fig. 4 is the vertical view of first kind of shape of lock shaft shown in Figure 1;

Fig. 5 is the vertical view of second kind of shape of lock shaft shown in Figure 1;

Fig. 6 is the vertical view of the third shape of lock shaft shown in Figure 1.

As Fig. 1,2, shown in 3, the utility model Door lock for automobile has lock body 15, lock body nut 12 and packing ring 13, be provided with lock shaft 4 and lock shaft spring 3 in the lockhole 2 of lock body 15, dead bolt 11 is fixed on the overhanging end of lock shaft 4 by nut 8, has annular shoulder 4-2 on the lock shaft 4, lock shaft spring 3 is sleeved on the periphery of lock shaft 4, and lower end abutment is on the step surface 2-1 of lockhole 2, the upper end is resisted against on the shoulder 4-2 of lock shaft 4, have cross recess 7 on the bottom surface of lock body 15, be fixedly connected with lock pin 6 on the overhanging end of lock shaft 4, this lock pin 6 is the taper one shape pin, and with lock shaft 4 on hole 5 tight fits.Certainly also can on lock shaft 4, weld cross pin, also can reach same purpose.As shown in Figure 4, the cross section of the head 4-1 of lock shaft 4 is quincunx.When opening the door, to have key 1 that quincunx Kong Bingneng cooperates with lock shaft head 4-1 and insert the lockhole 2 of lock body 15, and entangle the head 4-1 of lock shaft 4, firmly toward pressing down lock shaft 4, the active force that makes lock shaft 4 overcome lock shaft spring 3 moves down, thereby the cross recess 7 that the lock pin 6 on the lock shaft 4 is broken away from lock body 15 bottom surfaces, at this moment screw key 1, and drive lock shaft 4 and dead bolt 11 half-twist together, unclamp key 1, lock shaft 4 up moves under the active force of lock shaft spring 3, drives the lock pin 6 that is connected on the lock shaft 4 and enters cross recess 7, at this moment dead bolt 11 has broken away from doorframe, can open the door.When locking a door, close earlier to the doorstep, insert the lockhole 2 of lock body 15 with key 1 again, and entangle lock shaft 4 head 4-1, firmly toward pressing down, the active force that makes lock shaft 4 overcome lock shaft spring 3 moves down, thereby lock pin 6 on the lock shaft 4 is also moved down and break away from cross recess 7 on lock body 15 bottom surfaces, at this moment, 90 ° of key 1 reverse rotations, make lock shaft 4 drive dead bolts 11 90 ° of reverse rotations together, realize locking a door thereby make dead bolt 11 enter doorframe.Pull out key 1, lock shaft 4 up moves under the active force of lock shaft spring 3, and drive lock pin 6 is got back to cross recess 7.

As shown in Figure 1, between nut 8 and dead bolt 11, spring washer 10 is housed also, plain washer 9, can make like this nut 8 can be better fixing dead bolt 11.

As shown in Figure 1, the dirt-proof boot 14 of on lock body 15, having gone back suit, these dirt-proof boot 14 flexible upsets also cover lockhole 2, after unblanking at every turn, can cover lockhole 2 with dirt-proof boot 14, to prevent that dust enters lockhole 2 in the vehicle traveling process, can prevent that also rainwater from entering lockhole 2, and then prevent that dust from blocking and the deficiency of water inlet back bursting by freezing.

Shown in Fig. 5,6, the cross section of the head 4-1 of the lock shaft 4 of the utility model Door lock for automobile also can be made into semicircle or square, as long as the cross section of the endoporus of the key 1 that will cooperate with the head 4-1 of lock shaft 4 is also made semicircle or square respectively, can realize above-mentioned purpose of unblanking equally.

Shown in Fig. 1,3, have flat filament 15-1 in the lower edge of lock body 15 heads, on door, have corresponding oval hole simultaneously, can avoid like this rotating between the installing hole on lock body 15 and the door.

As Fig. 1, increase a flange 13-1 on the endoporus limit of packing ring 13, a groove corresponding with flange 13-1 is opened on the installing hole limit on door simultaneously, can make like this between lock body 15 and the door to fix better.

Claims

1, a kind of Door lock for automobile, have lock body (15), lock body nut (12) and packing ring (13), be provided with lock shaft (4) and lock shaft spring (3) in the lockhole (2) of lock body (15), dead bolt (11) is fixed on the overhanging end of lock shaft (4) by nut (8), it is characterized in that:

A, lock shaft spring (3) are sleeved on the periphery of lock shaft (4), and an end is resisted against on the step surface (2-1) of lockhole (2), and the other end is resisted against on the shoulder (4-2) of lock shaft (4);

Have cross recess (7) on the bottom surface of b, lock body (15), be fixedly connected with lock pin (6) on the overhanging end of lock shaft (4).

2, Door lock for automobile according to claim 1 is characterized in that: lock pin (6) is the taper one shape pin, and is a tight fit in the lockpin hole (5) of lock shaft (4) overhanging end.

3, Door lock for automobile according to claim 1 and 2 is characterized in that: be set with dirt-proof boot (14) on the lock body (15), the flexible upset of this dirt-proof boot (14) also covers lockhole (2).

4, Door lock for automobile according to claim 1 and 2 is characterized in that: the cross section of the head (4-1) of lock shaft (4) is quincunx.

5, Door lock for automobile according to claim 1 and 2 is characterized in that: the cross section of the head (4-1) of lock shaft (4) is for semicircle.

6, Door lock for automobile according to claim 1 and 2 is characterized in that: the cross section of the head (4-1) of lock shaft (4) is square.