CN103132812A

CN103132812A - Automobile back door lock

Info

Publication number: CN103132812A
Application number: CN2011103822305A
Authority: CN
Inventors: 贾炜
Original assignee: 张国网
Priority date: 2011-11-26
Filing date: 2011-11-26
Publication date: 2013-06-05

Abstract

An automobile back door lock comprises a fixed support, a base seat and a back door lock body. The back door lock body is arranged inside the base seat, a pawl shaft and a ratchet shaft are arranged inside the back door lock body in parallel, the pawl shaft is provided with a pawl and a pawl return spring, and the ratchet shaft is provided with a ratchet and a ratchet return spring. A steel ball is arranged on a small hole in the side flat face of the ratchet and provided with a steel ball spring, a micro switch and a belleville spring in an overlapped mode in sequence. The base seat is connected with the fixed support in a riveted mode through the pawl shaft and the ratchet shaft. A fixed shaft is arranged on the fixed support and provided with the fixed support, a locking stop rocker arm, an opening rocker arm and a rocker arm return spring in sequence, the fixed support, the locking stop rocker arm, the opening rocker arm and the rocker arm return spring are connected in a riveted mode, an opened-outside drawing wire is arranged at one end of the opening rocker arm, and an opening linkage arm is connected with the other end of the opening rocker arm in a riveted mode. The locking stop rocker arm is connected with a motion machine drawing rod and a lock element drawing rod in a riveted mode. The automobile back door lock is convenient to use and install, complete in function, stable in quality, low in cost, and long in service life.

Description

A kind of automobile back door lock

Technical field:

The present invention relates to the automobile back door lock, refer more particularly to a kind of automobile back door lock of MPV class C16A business car .

Background technology:

Domestic existing MPV class automobile all is equipped with tailgate, the opening direction of tailgate is all generally upper open type, when door is opened, warning taillight is lighted, and MPV class automobile back door Area comparison is large, stressed different when afterbody loading and the loading of car depression class boot, this just requires higher to tail-gate lock loading force, for above 2 requirements, therefore general car can not adopt with lock for rear box.Due to various automobile door frames and column all inconsistent, and doorframe and column form an angle, this just can not mate with external like product, therefore will solve functional requirement and the performance requirement of rear door lock, also has and car door coupling appearance requirement simultaneously.

Summary of the invention:

The purpose of this invention is to provide a kind of easy to install and use, complete function, steady quality, cost is low, long service life, the good automobile back door of theftproof performance lock.

The object of the present invention is achieved like this, a kind of automobile back door lock, comprise fixed support, base, rear door lock body, it is characterized in that: be provided with the rear door lock body in described base, be arranged with pawl axis and ratchet shaft in the rear door lock body in parallel, be provided with ratchet, ratchet return spring on pawl axis, be provided with ratchet, ratchet return spring on ratchet shaft; Be provided with the buffer stopper axle below pawl-and-gearing, on the buffer stopper axle, cover has the buffer stopper spring, and on the buffer stopper spring, cover has buffer stopper; Be provided with steel ball on ratchet side plane aperture, stack successively steel ball and spring, microswitch, butterfly spring on steel ball; Base is by ratchet shaft and pawl axis and fixed support riveted joint; Be provided with fixed axis on fixed support, be disposed with fixed support, locking rocking arm on fixed axis, open rocking arm, rocker-arm return spring and be riveted together, open an end on rocking arm and be provided with the external-open wire drawing, other end riveted joint has the unlatching coupled arm, opens on coupled arm and is provided with sheath; On the locking rocking arm, riveted joint has action device pull bar and lock core pull bar.

The present invention is easy to install and use, multiple functional, steady quality, and cost is low, long service life, theftproof performance is good.

The accompanying drawing explanation:

Fig. 1 is master's TV structure schematic diagram of the present invention.

Fig. 2 is backsight structural representation of the present invention.

Fig. 3 is the left TV structure schematic diagram of the present invention.

Fig. 4 is C-C sectional view in Fig. 3.

Fig. 5 is D-D sectional view in Fig. 4.

In figure 1, open rocking arm, 2, open coupled arm, 3, sheath, 4, base, 5, support, 6, rocker arm shaft, 7, rocker-arm return spring, 8, fixed axis, 9, action device pull bar, 10, microswitch, 11, the external-open wire drawing, 12, the locking rocking arm, 13, the lock core pull bar, 14, the lock core joint, 15, action device joint, 16, snubber block, 17, spring, 18, butterfly spring, 19, steel ball and spring, 20, steel ball, 21, the rear door lock body, 22, ratchet, 23, ratchet shaft, 24, buffer stopper A, 25, ratchet, 26, pawl axis, 27, the ratchet snubber block, 28, the ratchet return spring, 29, the buffer stopper axle, 30, the buffer stopper spring, 31, buffer stopper, 32, the ratchet return spring.

The specific embodiment:

Below in conjunction with accompanying drawing, the invention will be further described:

With reference to accompanying drawing, a kind of automobile back door lock, comprise fixed support 5, base 4, rear door lock body 21, it is characterized in that: in described base 4, be provided with rear door lock body 21, be arranged with pawl axis 26 and ratchet shaft 23 in rear door lock body 21 in parallel, be provided with ratchet 25, ratchet return spring 28 on pawl axis 26, be provided with ratchet 22, ratchet return spring 32 on ratchet shaft 26; Be provided with buffer stopper axle 29 below ratchet 25 and ratchet 22, on buffer stopper axle 29, cover has buffer stopper spring 30, and on buffer stopper spring 30, cover has buffer stopper 31; Be provided with steel ball 20 on ratchet 22 side plane apertures, stack successively steel ball and spring 19, microswitch 10, butterfly spring 18 on steel ball 20; Base 4 is by ratchet shaft 23 and pawl axis 26 and fixed support 5 riveted joints; Be provided with fixed axis 8 on fixed support 5, be disposed with fixed support 5, locking rocking arm 12 on fixed axis 8, open rocking arm 1, rocker-arm return spring 7 and be riveted together, open an end on rocking arm 1 and be provided with external-open wire drawing 11, other end riveted joint has the coupled arm 2 of unlatching, opens on coupled arm 2 and is provided with sheath 3; On locking rocking arm 12, riveted joint has action device pull bar 9 and lock core pull bar 13.During concrete enforcement, when opening car door, under the drive of external-open wire drawing, open rocking arm and drive unlatching coupled arm promotion ratchet disengagement meshing point, ratchet return car door opening, now steel ball contacts with ratchet, and steel ball and steel ball and spring form loop by circuit turn-on to microswitch, circuit is connected, and realizes automobile tail light Chang Liang; When closed door, ratchet rotates around ratchet shaft, and while arriving meshing point, ratchet blocks ratchet, and door lock pins, and circuit disconnects, and automobile tail light extinguishes; When door lock is closed, use key by promoting locking rocking arm band movable lock core pull bar, realize that key opens and closes antitheft unlocking function; Action device pull bar connects upper dead lock, realizes that remote controller opens and closes antitheft unlocking function.

Claims

1. an automobile back door is locked, comprise fixed support (5), base (4), rear door lock body (21), it is characterized in that: be provided with rear door lock body (21) in described base (4), be arranged with pawl axis (26) and ratchet shaft (23) in rear door lock body (21) in parallel, be provided with ratchet (25), ratchet return spring (28) on pawl axis (26), be provided with ratchet (22), ratchet return spring (32) on ratchet shaft (26); Be provided with buffer stopper axle (29) at ratchet (25) and ratchet (22) below, the upper cover of buffer stopper axle (29) has buffer stopper spring (30), and the upper cover of buffer stopper spring (30) has buffer stopper (31); Be provided with steel ball (20) on ratchet (22) side plane aperture, stack successively steel ball and spring (19), microswitch (10), butterfly spring (18) on steel ball (20); Base (4) is by ratchet shaft (23) and pawl axis (26) and fixed support (5) riveted joint; Be provided with fixed axis (8) on fixed support (5), be disposed with fixed support (5), locking rocking arm (12) on fixed axis (8), open rocking arm (1), rocker-arm return spring (7) and be riveted together, open the upper end of rocking arm (1) and be provided with external-open wire drawing (11), other end riveted joint has unlatching coupled arm (2), opens on coupled arm (2) and is provided with sheath (3); The upper riveted joint of locking rocking arm (12) has action device pull bar (9) and lock core pull bar (13).