CN202450889U

CN202450889U - Automobile door lock structure capable of reducing unlocking noise

Info

Publication number: CN202450889U
Application number: CN 201220018045
Authority: CN
Inventors: 罗时富; 周五峰; 邢俊峰
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2012-01-16
Filing date: 2012-01-16
Publication date: 2012-09-26
Anticipated expiration: 2022-01-16

Abstract

The utility model discloses an automobile door lock structure capable of reducing unlocking noise, which includes a lock box main body, a lock rotating shaft arranged at the upper part of the lock box, a clamp plate matched with the lock rotating shaft through a clamp plate spring, a pawl rotating shaft arranged at the middle part of the lock box main body, and a pawl matched with the pawl rotating shaft through a pawl spring, wherein a groove is arranged in the middle and at the slightly-downward part of the clamp plate, a bulge is arranged on the edge of the clamp plate, and the bulge is arranged on the left side of the groove and contacted with the pawl; and a buffering structure is arranged at the other part of the edge of the clamp plate and on the right side of the groove, and corresponds to/is contacted with a limiting block at the right upper part of the lock box main body, and the buffering structure is a hollow boss structure. By arranging the buffering structure on the clamp plate, when the clamp plate collides with the lock box main body, the buffering structure can absorb the collision impact through compressive deformation, so as to reduce the noise produced by the collision between the clamp plate and the lock box main body, and then achieve the purpose of reducing the unlocking noise of the door lock.

Description

A kind of vehicle door lock structure that reduces release sound

Technical field

The utility model relates to the arrangements for automotive doors assembly, is specifically related to a kind of vehicle door lock structure that reduces release sound.

Background technology

Automobile door lock is one of main safety member in the body accessories, and it cooperates the switching that realizes car door with latch for vehicle door, guarantees the safety of occupant and article.Along with progress, the development of science and technology of society, people are increasingly high to the quality requirements of automobile, also more and more pay attention to for the sound quality of opening at closing time.So the sound quality when promoting the vehicle switch door also will become an important ring that promotes in the automobile quality.And in the sound that the vehicle switch door produces, the sound that door lock sends has occupied consequence.

General automobile door lock is made up of transmission mechanism, controller and lock box assembly, and the lock box assembly mainly is made up of clamp, clamp, spring, ratchet, ratchet spring, lock box cover plate and lock box body, is assembled together through total coating process between them.Wherein, can rotate around it the center after clamp and ratchet are stressed and rotate, clamp spring and ratchet spring then can compress in the rotation process.When at closing time, artificial applies a power to car door, and car door lock and latch for vehicle door are approached step by step; In the approximate procedure, latch for vehicle door at first contacts with the recess of clamp, and the recess of clamp then catches on lock pin and rotates around the center of rotation of clamp together then; Ratchet cooperates with the convexity of clamp and carries out spacing to clamp in the rotation; Make clamp and lock pin not to go back to again, thereby realize the engagement of door lock and lock pin, promptly realize closing of car door.When opening the door, the artificial power of ratchet of giving lets ratchet discharge the position-limiting action to clamp, and then clamp and lock pin can rotate back into initial position again, clamp then with the lock pin disengagement, thereby realized opening the door.Rotate back in the process of initial position at clamp, can run into fixing lock box body, thereby let clamp stop and be in the state of initial position, and the sound that the release sound of when opening the door, hearing sends when mainly being exactly clamp and the collision of lock box body.The position that contacts with the lock box body on the clamp of present automobile door lock is not provided with buffer structure, can not reduce the sound that the fit collision of clamp and lock box produces.

Summary of the invention

The purpose of the utility model is to provide a kind of vehicle door lock structure that reduces release sound, and the sound that the collision of clamp and lock box body produced in the door lock when this structure can reduce release is to improve the sound quality of door lock.

The described a kind of vehicle door lock structure that reduces release sound of the utility model, the clamp that comprise the lock box body, be located at the lock body rotating shaft on lock box body top, cooperates through the clamp spring with the lock body rotating shaft, the ratchet rotating shaft that is located at lock box body middle part, the ratchet that cooperates with the ratchet rotating shaft through ratchet spring; The position of said clamp lower middle is provided with a groove, is provided with a convexity at the edge of said clamp, and this convexity is positioned at one side of groove, and/contact corresponding with ratchet; It is characterized in that: another position at said clamp edge is provided with a buffer structure, the protruding relatively another side that is positioned at said groove of this buffer structure, and/contact corresponding with the limited block that is located at lock box body upper right quarter.

Described buffer structure is the cannular boss structure, and its section is trapezoidal, rectangle or semicircle.

The beneficial effect of the utility model is through buffer structure is set on clamp; Make it when clamp and the collision of lock box body; Described buffer structure can impact with absorbing impact through compressive strain; Reduce the sound that the fit collision of clamp and lock box produces, thereby reach the purpose that reduces door lock release sound.

Description of drawings

Assembly structure sketch map when Fig. 1 is the utility model locking;

Assembly structure sketch map when Fig. 2 is the utility model release;

Fig. 3 is the partial schematic diagram of Fig. 2;

Fig. 4 is the A-A sectional drawing of Fig. 3.

The specific embodiment

Engaging accompanying drawing and embodiment below does further to set forth in detail to the utility model:

Referring to Fig. 1, Fig. 2, Fig. 3 and a kind of vehicle door lock structure that reduces release sound shown in Figure 4, the clamp 7 that comprise lock box body 4, be located at the lock body rotating shaft 6 on lock box body top, cooperates through the clamp spring with the lock body rotating shaft, the ratchet rotating shaft that is located at lock box body middle part, the ratchet 8 that cooperates with the ratchet rotating shaft through ratchet spring; The position of said clamp 7 lower middles is provided with a groove 3, is provided with one protrudingly 2 at the edge of said clamp 7, and this convexity is positioned at one side of groove 3, and with ratchet 8 corresponding/contacts; Another position at said clamp 7 edges is provided with a buffer structure 9, the protruding relatively another side that is positioned at said groove 3 of this buffer structure, and with the limited block that is located at lock box body 4 upper right quarters 5 corresponding/contacts.Described buffer structure 9 is the cannular boss structure, and its section is trapezoidal.

Fig. 1 is the blocking of the utility model, and the convexity 2 on the clamp 7 is conflicted with ratchet 8, makes clamp 7 backswing counterclockwise.During blocking, door lock is realized the blocking function of door lock through groove 3 and another parts that are installed in (with the car door corresponding matching) on the vehicle body-lock pin engagement.

Fig. 2 is the released state of the utility model; When the door lock release, the artificial ratchet 8 of giving applies external force, the restriction that lets ratchet 8 discharge clamp 7; Then clamp 7 will rotate counterclockwise with lock body rotating shaft 6; Groove 3 on the clamp 7 is removed meshing relation with lock pin simultaneously, conflicts up to buffer structure on the clamp 79 and limited block 5 collisions on the lock box body 4, and then door lock is accomplished the release action.

Like Fig. 3, shown in Figure 4, described buffer structure 9 is the hollow trapezoid boss of plastic material, and during its limited block 5 collisions on itself and lock box body 4, this structure can be compressed distortion, thus the absorbing impact energy, and then arrived the effect that reduces release sound.

Section like buffer structure 9 is rectangle or semicircle, promptly constitutes two other embodiment.

Claims

1. vehicle door lock structure that reduces release sound comprises lock box body (4), is located at the lock body rotating shaft (6) on lock box body top, the clamp (7) that cooperates with the lock body rotating shaft through the clamp spring, the ratchet rotating shaft that is located at lock box body middle part, the ratchet (8) that cooperates with the ratchet rotating shaft through ratchet spring; The position of said clamp (7) lower middle is provided with a groove (3), is provided with a convexity (2) at the edge of said clamp (7), and this convexity is positioned at one side of groove (3), and/contact corresponding with ratchet (8); It is characterized in that: another position at said clamp (7) edge is provided with a buffer structure (9), and this buffer structure protruding relatively (2) is positioned at the another side of said groove (3), and corresponding with the limited block (5) that is located at lock box body (4) upper right quarter/contact.

2. the vehicle door lock structure that reduces release sound according to claim 1 is characterized in that: described buffer structure (9) is the cannular boss structure, and its section is trapezoidal, rectangle or semicircle.