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A special vehicle door lock adopting a ratchet holding and locking mechanism

A locking mechanism and special vehicle technology, applied in the field of locks, can solve the problems of poor man-machine ring effect, no self-locking function, large rebound force, etc., and achieve the effect of light closing and opening, and good man-machine ring effect

Active Publication Date: 2017-07-18
CHONGQING YIHAI TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The car door locks in the prior art generally include a box-type deadbolt mechanism and a collision-type pawl mechanism: the disadvantage of the box-type deadbolt mechanism is that the spring preload is large, and the active force is directly transmitted to the handle through the connecting rod structure. The closed door lock requires a large force, and the man-machine loop effect is poor and it is easy to fail
In addition, the box-type deadbolt door lock does not have a self-locking function. The spring compression caused by vibration may cause the deadbolt to break away from the stop teeth and the door will open by itself.
The defects of the collision pawl mechanism are: the rebound force is large, and the friction force of the ratchet wheel can be directly transmitted to the handle through the ratchet wheel. The effect of closing and opening the door lock is the same as that of the box-type deadbolt door lock.
Similarly, the handle of the collision pawl mechanism does not have a self-locking function, and it is easy to cause the handle to fail due to vibration during driving, so that the lock tongue is separated from the stop teeth and the door opens by itself

Method used

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  • A special vehicle door lock adopting a ratchet holding and locking mechanism
  • A special vehicle door lock adopting a ratchet holding and locking mechanism
  • A special vehicle door lock adopting a ratchet holding and locking mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 Ratchet holding and locking mechanism

[0020] The ratchet locking and locking mechanism includes a pair of lock tooth blocks 12 with arc-shaped holding teeth 12a and ratchet teeth 12c, and a ratchet stop block 13 capable of engaging with the ratchet teeth; the lock tooth blocks pass through The return torsion spring 12d is installed on the pillar I12b, so that the two arc-shaped holding teeth form a normally open lock corresponding to the lock cylinder body 5. The ratchet stopper is located below the ratchet 12c of the lock tooth block, and the return torsion spring Installed on the pillar II13a; when the lock cylinder body enters the lock opening and hits the lock tooth block, the lock tooth block rotates so that the arc-shaped holding tooth embraces the lock cylinder body, and at the same time the ratchet rotates to the stop ratchet position and the ratchet stop block Engage, the ratchet enters the locked state;

[0021] Further, the ratchet 12c is a ri...

Embodiment 2

[0024] Embodiment 2 Ratchet Release Mechanism

[0025] The ratchet release mechanism includes a release lever 14 installed on the bottom plate of the lock body, a release lever support seat 14c and a pin release lever driving body 16; wherein the release lever end has a curved chute 14a, and the pin release lever The pin 16a on the rod driving body is located in the curved chute 14a, and the head end of the release lever is located on the pressure plate 13b of the ratchet stop block. Sliding in the chute drives the head end of the release lever to press down, so that the ratchet stop block is separated from the ratchet, and the lock tooth block is rotated and reset to restore the unlocked state;

[0026] In an embodiment, the middle section of the release lever 14 has a hinge hole 14b, which is matched with the rotating shaft 14d on the supporting base 14c. The supporting seat 14c is fixed on the bottom plate 1a. The driving body 16 is movably connected with the bottom plate...

Embodiment 3

[0027] Embodiment 3 Unlocking the drive mechanism

[0028] The unlocking drive mechanism includes inner and outer handles 2, 3, handles or electric driving force transmission body 17, handle return spring 17a and handle rotation limiting plate 17b installed on the handle or electric driving force transmission body 17; wherein the handle rotates The limiting plate 17b has a semicircular arc-shaped groove, which cooperates with the limiting pin fixed on the cover plate to limit the rotation of the handle within the range of 0-90°; the return spring of the handle makes the handle or the electric rotating mechanism disappear when the external force disappears. Get back to the initial state; the handle driving force transmission body 17 has a bar-shaped inner hole to cooperate with the bar-shaped connecting rod of the inner and outer handles, and there are bosses or grooves on its end face and the end face grooves or grooves on the band pin release lever driving body 16. Boss fit; ...

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PUM

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Abstract

The invention relates to a special vehicle door lock using a ratchet hugging and locking mechanism. The special vehicle door lock comprises a lock body, an inner handle, an outer handle, a lock column body, a lock cylinder seat and a handle seat, wherein the lock column body is mounted on a vehicle body, and the lock cylinder seat and the handle seat are fixed on a vehicle door. The special vehicle door lock is characterized in that the ratchet hugging and locking mechanism, a ratchet releasing mechanism, an unlock driving mechanism and a handle rotation limiting mechanism are arranged in the lock body. The ratchet hugging and locking mechanism hugs the lock column mounted to the vehicle body. The locking mechanism of ratchets is not directly associated with the handles, so that locking and unlocking are both easy, and the man-machine environment effect is good. The impact of the ratchet hugging and locking mechanism on ratchet hugging always acts on the dead point position of a rotation shaft, reversal torque is not generated, and therefore the locking mechanism of ratchets cannot automatically get loose even if the handles are void or the vehicle door is deformed.

Description

technical field [0001] The invention relates to a lock, in particular to a special vehicle door lock using a ratchet holding and locking mechanism. Background technique [0002] The car door locks in the prior art generally include a box-type deadbolt mechanism and a collision-type pawl mechanism: the disadvantage of the box-type deadbolt mechanism is that the spring preload is large, and the active force is directly transmitted to the handle through the connecting rod structure. The closed door lock requires a large force, and the man-machine loop effect is poor, and it is easy to fail. In addition, the box-type deadbolt door lock does not have a self-locking function. The spring compression caused by vibration may cause the deadbolt to disengage from the stop teeth and the door will open by itself. The defects of the collision pawl mechanism are: the rebound force is large, and the friction force of the ratchet wheel can be directly transmitted to the handle through the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05B83/00E05B81/34E05B79/22E05B81/04E05B77/04
CPCE05B77/04E05B79/22E05B81/04E05B81/34E05B83/00
Inventor 红昀欧阳立
Owner CHONGQING YIHAI TECH DEV CO LTD