CN205531823U - Car side door lock with damping reset function - Google Patents

Abstract

The utility model discloses a car side door lock with damping reset function, the lock cardboard is riveted on the lock bedplate by the one end of cardboard rivet, and the lock pawl is riveted on the lock bedplate by the one end of pawl rivet, the suit is on cardboard rivet and pawl rivet respectively with pawl rivet sleeve for lock cardboard rivet sleeve on one's body, and is installing on the bedplate telescopic one end of board rivet and the telescopic one end of pawl rivet location, damping return spring set dress is installed on the pawl in the lock body pawl sleeve outside and one end, and the damping reset spring other end inlays on one's body the lock, the other end of cardboard rivet and the other end of pawl rivet riveting backplate. When closing the entrance door, car gate lock promotes the lock cardboard of riveting on the bedplate, and the lock cardboard promotes pawl rotation to certain angle, and pawl soft collision lock body under the effect of damping reset spring stops, and lock cardboard and pawl just in time meshed this moment, reached door complete closure state.

Description

A kind of automobile side door lock with vibration damping reset function

Technical field

This utility model relates to a kind of automobile side door lock with vibration damping reset function, belongs to auto-parts technology Field.

Background technology

Current domestic side door lock clamp and ratchet use mechanical spring reset mode mostly, and apply buffer stopper to set Meter, it is to avoid open the door moment, clamp and ratchet each hard stop under return spring force effect, produce collision sound.

There is not buffer stopper to design at this door lock ratchet stopping, therefore under return spring force effect, produce bigger pass Door noise.

Utility model content

Utility model purpose: for problems of the prior art with not enough, it is provided that the tool of a kind of simple in construction There is the automobile side door lock of vibration damping reset function, reach reset vibration damping purpose by vibration damping back-moving spring, to such an extent as to carry High automobile is closed the door sound quality, it is to avoid impact noise.

Technical scheme: a kind of automobile side door lock with vibration damping reset function, including door lock clamp, door lock ratchet With vibration damping back-moving spring, described door lock clamp is riveted on door lock seat board by one end of clamp rivet and can be around rivet Certain angle is freely rotatable, and equally, door lock ratchet is riveted on door lock seat board by one end of pawl rivet and can be around Rivet certain angle is freely rotatable.Divide with inside pawl rivet sleeve inside clamp rivet sleeve with door lock Not Tong Guo clamp rivet and pawl rivet location and installation on seat board；Described vibration damping back-moving spring is sleeved on lock body spine Outside pawl sleeve and one end is arranged on ratchet, and the other end of spring is embedded in lock.The other end of clamp rivet Backboard is riveted, backboard thus fixing lock body with the other end of pawl rivet.Closing of the door, the snap close on vehicle body pushes away Dynamic door lock clamp, clamp promotes pawl rotation, and ratchet flexible touching lock body under vibration damping action of reset spring stops, Now door lock clamp just engages with ratchet, and car door completely closes.

The mean diameter of coil D=12.1mm of described vibration damping back-moving spring, spring wire footpath d=1.2mm, then spring index C=10, Stress Correction Coefficient K_b=1.08, spring material elastic modulus E=205800MPa, active spring coils Number is 7.93.Spring rate K=1.2Nmm/DEG, the established angle θ of spring₁=25 degree, maximum functional angle θ₂=72 degree.

Beneficial effect: compared with prior art, the automobile side with vibration damping reset function that this utility model provides Door lock, has the advantage that

1, in compact door lock arrangement space, increase extra Vibration Absorption Designing relative difficulty and increase cost, Therefore existing back-moving spring is carried out shock-absorbing spring optimization design.

2, simply, output capacity is high for this utility model product manufacturing, assembling.

Accompanying drawing explanation

Fig. 1 is automobile side door lock installation diagram 1；

Fig. 2 is automobile side door lock installation diagram 2；

Fig. 3 is the structural representation of vibration damping back-moving spring；

Fig. 4 is the structural representation of door lock ratchet；

Fig. 5 is the structural representation of door lock clamp；

Fig. 6 is the process chart of door lock.

Detailed description of the invention

Below in conjunction with the accompanying drawings and specific embodiment, it is further elucidated with this utility model.

As Figure 1-5: there is the automobile side door lock of vibration damping reset function, including door lock clamp 2, door lock spine Pawl 3 and vibration damping back-moving spring 4, door lock clamp 2 is riveted on door lock seat board 1 by one end of clamp rivet and can Freely rotatable around rivet certain angle, equally, door lock ratchet 3 is riveted on door lock seat board by one end of pawl rivet On 1 and can be freely rotatable around rivet certain angle.With ratchet riveting inside clamp rivet sleeve on door lock body 5 Clamp rivet and pawl rivet location and installation is passed through respectively on seat board 1: i.e., door lock body 5 inside nail sleeve On clamp rivet sleeve and pawl rivet sleeve be respectively fitted over clamp rivet with in pawl rivet, and, plate rivet One end location and installation of sleeve and pawl rivet sleeve is on seat board 1；Vibration damping back-moving spring 4 is sleeved on lock body spine Outside pawl sleeve and one end is arranged on ratchet 3, and the other end of vibration damping back-moving spring 4 is embedded in lock.Clamp The other end of rivet rivets backboard 6 with the other end of pawl rivet, backboard 6 thus fixing lock body 5.Car door closes Closing, the snap close 7 on vehicle body promotes door lock clamp 2, clamp 2 to promote ratchet 3 to rotate, and ratchet 3 is multiple at vibration damping Spring 4 effect lower flexibility touching lock body in position stops, and now door lock clamp 2 just engages with ratchet 3, and car door is complete Contract fully.

Such as Fig. 1, shown in 2 and 6, when closing entrance door, vehicle door bonnet lock 7 snaps in door lock clamp 2, snap close 7 Promoting the door lock clamp 2 being riveted on seat board 1, door lock clamp 2 promotes ratchet 3 to rotate to certain angle, spine Pawl 3 soft collision lock body 5 under vibration damping back-moving spring 4 acts on stops, and now door lock clamp 2 is with ratchet 3 just Engagement, reaches car door completely closed state.

Vibration damping back-moving spring 4 is optimized design simultaneously, installs so that spring torque reduces and meets spring Stability and useful life longevity and safety, the vibration damping back-moving spring 4 after thus being optimized was closed at door lock Cheng Zhong, makes ratchet 3 soft latch body 5 stop, and improves automobile door lock and closes the door sound quality.

The mean diameter of coil D=12.1mm of vibration damping back-moving spring, spring wire footpath d=1.2mm, then spring index $c=\frac{D}{d}=\frac{12.1}{1.2}10,$ Stress Correction Coefficient $K_b\frac{4c^2-c-1}{4c\left(c-1\right)}=\frac{400-10-1}{40*9}=1.08,$ (meet spring index and stress , then will not there is spring surge and cross soft situation in correction factor relation)；

Spring material elastic modulus E=205800MPa, active spring coils number is 7.93, then, spring rate $K$ $=\frac{{\mathrm{Ed}}^4\mathrm{\π}}{64*D*Na*180}=\frac{205800*{1.2}^4*3.14}{64*12.1*7.93*180}=1.2Nmm/DEG.$ Spring rate K=1.2Nmm/DEG；

The established angle θ of spring₁=25 degree, maximum functional angle, θ₂=72 degree

Then, moment of torsion installed by spring is M1=K θ₁=1.2*25=30Nmm

Spring maximum working torque M2=K θ₂=1.2*72=86.4Nmm.

Claims (2)

1. an automobile side door lock with vibration damping reset function, it is characterized in that, including door lock clamp, door lock ratchet and vibration damping back-moving spring, described door lock clamp is riveted on door lock seat board by one end of clamp rivet, and door lock ratchet is riveted on door lock seat board by one end of pawl rivet；Clamp rivet sleeve with door lock and pawl rivet sleeve are set in clamp rivet and pawl rivet, and one end of plate rivet sleeve and one end of pawl rivet sleeve are positioned at and are arranged on seat board；Described vibration damping back-moving spring is sleeved on outside lock body ratchet sleeve and one end is arranged on ratchet, and the vibration damping back-moving spring other end is embedded in lock；The other end of clamp rivet rivets backboard with the other end of pawl rivet.

There is the automobile side door lock of vibration damping reset function the most as claimed in claim 1, it is characterised in that the mean diameter of coil D=12.1mm of vibration damping back-moving spring, spring wire footpath d=1.2mm, then spring index c=10, Stress Correction Coefficient K_b=1.08, spring material elastic modulus E=205800 MPa, active spring coils number is 7.93, spring rate K=1.2 Nmm/DEG, the established angle θ of spring₁=25 degree, maximum functional angle, θ₂=72 degree.