CN107044232B - Central locking external release mechanism - Google Patents

Abstract

A central lock external release mechanism comprises an external release link linked to a pull wire or a pull rod, a release connection mounted on the external release link, a spring mounted on the release connection, a locking link always in contact with the release connection, a pawl and a clamping plate having two states of separation and engagement, a pawl link coaxially fixed to the pawl to drive the pawl, and a rivet fixed on the pawl link. The external release link is provided with a first axis around which it can rotate, and the release connection has a second axis that deviates from the first axis so that it can rotate around under the push of the external release link. The spring comprises a first elastic arm fixed on the external release link and a second elastic arm fixed on the release connection, and the rivet is in contact with the release connection. The present invention realizes effective external release of a car door lock in an unlocked state.

Description

Central locking external release mechanism

Technical Field

The invention relates to an automobile component, in particular to an external release mechanism of a central lock.

Background technique

The external release mechanism of the automobile door lock is a device used to pull the outer door handle to open the automobile door. The external release mechanism of the existing automobile door lock has a complex structure, high manufacturing cost, and many parts, so the failure rate is also high.

Summary of the invention

In order to overcome the above-mentioned defects, the present invention provides a central lock external release mechanism, which has a simple structure and can ensure effective external release of the vehicle door lock in the unlocked state.

The technical solution adopted by the present invention to solve its technical problems is: a central control lock external release mechanism, including an external release link linked to a pull wire or a pull rod, a release connection installed on the external release link, a spring installed on the release connection, a locking link that always abuts against the release connection, a pawl and a clamping plate with two states of separation and engagement, a pawl link coaxially fixed to the pawl to drive the pawl, and a rivet fixed on the pawl link, the external release link is provided with a first axis around which it can rotate, the release connection has a second axis that deviates from the first axis so that it can rotate around under the push of the external release link, the spring includes a first elastic arm fixed on the external release link and a second elastic arm fixed on the release connection, and the rivet abuts against the release connection.

As a further improvement of the present invention, the rivet and the release connection also have a separation state.

As a further improvement of the present invention, it also includes an electric motor, a worm driven by the electric motor, and a gear meshing with the worm, wherein the gear is connected to the locking link.

As a further improvement of the present invention, the first axis is located above the second axis.

As a further improvement of the present invention, the first axis is located below the second axis.

As a further improvement of the present invention, the release connection is integrally provided with a block at the position of the second axis, the outer release link is provided with an opening at the position of the second axis, and the block is clamped in the opening.

As a further improvement of the present invention, the spring has a ring-shaped portion connecting the first elastic arm and the second elastic arm, and the ring-shaped portion is sleeved on the clamping block.

The beneficial effect of the present invention is that when the rivet of the present invention abuts against the release connection, the release connection can also drive the pawl connection to rotate during the process in which the external release link drives the release connection to rotate, thereby releasing the pawl from the state of engagement with the clamping plate to open the door, thereby realizing effective external release of the car door lock in the unlocked state.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a combined diagram of the central locking external release mechanism of the present invention.

FIG. 2 is a partial assembled view of FIG. 1 with the release connection hidden.

FIG. 3 is a schematic diagram of the rivet and release connection of the central locking outer release mechanism of the present invention abutting against each other.

FIG4 is a rear view of FIG3 with some components hidden;

FIG. 5 is a schematic diagram of the rivet and release connection of the central locking external release mechanism of the present invention being separated.

FIG6 is a rear view of FIG5 with some components hidden;

7 is a schematic diagram of the first embodiment of the central lock external release mechanism of the present invention, in which the first axis of the external release link is located above the second axis of the release connection so that the external release link is rotated by pulling the pull wire clockwise.

8 is a schematic diagram of a second embodiment of the central locking external release mechanism of the present invention, in which the first axis of the external release link is located below the second axis of the release connection so that the external release link is rotated counterclockwise by pulling the pull wire.

9 is a schematic diagram of a third embodiment of the central locking external release mechanism of the present invention, in which the first axis of the external release link is located above the second axis of the release connection so that the external release link is rotated by pulling the pull rod clockwise.

With reference to the above drawings, the following additional explanations are given:

1, 2, 3---External release link 4---Release connection

41---Second axis 5---Spring

51---First elastic arm 52---Second elastic arm

53---Ring-shaped part 6---Lock connecting rod

7---Ratchet 8---Rivet

9---Pawl connecting rod 10, 20, 30---First axis

12---Gear 23---Cardboard

Detailed ways

Please refer to Figures 1 to 9, a central lock external release mechanism includes an external release link 1, 2, 3 linked with a pull wire or a pull rod, a release link 4 installed on the external release link 1, 2, 3, a spring 5 installed on the release link 4, a locking link 6 that always abuts against the release link 4, a pawl 7 and a clamping plate 23 with two states of separation and engagement, a pawl link 9 coaxially fixed to the pawl 7 to drive the pawl 7, and a rivet 8 fixed on the pawl link 9. The external release links 1, 2, 3 are provided with a first axis 10, 20, 30 that can rotate around, and the release link 4 has a second axis 41 that deviates from the first axis 10, 20, 30 and can rotate around under the push of the external release links 1, 2, 3. The spring 5 includes a first elastic arm 51 fixed on the external release links 1, 2, 3 and a second elastic arm 52 fixed on the release link 4, and the rivet 8 abuts against the release link 4. When the rivet 8 on the pawl link 9 abuts against the release link 4, the release link 4 can also drive the pawl link 9 to rotate during the process of the outer release link 1, 2, 3 driving the release link 4 to rotate, thereby releasing the pawl 7 from the state of engagement with the card plate 23 to open the door.

The rivet 8 and the release link 4 are also in a separated state. When the rivet 8 on the pawl link 9 is separated from the release link 4, the release link 4 cannot drive the pawl link 9 to rotate during the process of the outer release link 1, 2, 3 driving the release link 4 to rotate, thereby maintaining the meshing state of the pawl 7 and the clamping plate 23.

The present invention further includes an electric motor (not shown), a worm (not shown) driven by the electric motor, and a gear 12 meshing with the worm, wherein the gear 12 is connected to the locking link 6. The two states of abutment and separation between the rivet 8 and the release link 4 are controlled by electricity: electric motor->worm->gear 12->locking link 6->release link 4. When the power is turned on in the forward direction, the electric motor controls the gear 12 to rotate forward through the worm, and the locking link 6 pushes the release link 4 forward to separate from the rivet 8; when the power is turned on in the reverse direction, the electric motor controls the gear 12 to rotate in the reverse direction through the worm, and the locking link 6 retreats backward, and the release link 4 is restored to abutment with the rivet 8 under the elastic restoring force of the spring 5. The locking link 6 and the release link 4 always maintain abutment contact.

In a specific embodiment, the first axis 10, 30 is located above the second axis 41. Please refer to the first embodiment of FIG7 and the third embodiment of FIG9: the outer release link 1, 3 rotates clockwise to push the release link 4 to drive the pawl link 9 to rotate counterclockwise; the difference between the first embodiment and the third embodiment is that the outer release link 1 is connected to the pull wire, and the outer release link 3 is clamped with the pull rod.

In other embodiments, the first axis 20 is located below the second axis 41. Please refer to the second embodiment of Fig. 8: the outer release link 2 rotates counterclockwise to push the release link 4 to drive the pawl link 9 to rotate counterclockwise.

In embodiments one, two and three, because the pawl link 9 is coaxial with the pawl 7 and fixedly connected, the pawl 7 and the pawl link 9 always maintain the same rotation direction, that is, during the release process, the pawl link 9 drives the pawl 7 to rotate counterclockwise, and finally separates from the clamping plate 23.

The second axis 41 is specifically formed as follows: the release link 4 is integrally convexly provided at the position of the second axis 41 to form a block, the outer release links 1, 2, 3 are provided with openings at the position of the second axis 41, and the block is clamped in the openings.

The form and positioning method of the spring 5 are as follows: the spring 5 has a ring-shaped portion 53 connecting the first elastic arm 51 and the second elastic arm 52, and the ring-shaped portion 53 is sleeved on the clamping block.

When the rivet 8 of the present invention abuts against the release link 4, the release link 4 can also drive the pawl link 9 to rotate during the process of the external release link 1, 2, 3 driving the release link 4 to rotate, thereby releasing the pawl 7 from the state of engagement with the card plate 23 to open the door, thereby realizing effective external release of the car door lock in the unlocked state.

Claims (6)

1. An external release mechanism of a central control lock is characterized in that: the outer release connecting rod is provided with a first axis capable of rotating around, the release connecting rod is provided with a second axis which deviates from the first axis and can rotate around under the pushing of the outer release connecting rod, and the spring comprises a first elastic arm fixed on the outer release connecting rod and a second elastic arm fixed on the release connecting rod;

the release is connected to the position of the second shaft center and integrally protrudes to form a clamping block, an opening is formed in the position of the second shaft center of the outer release connecting rod, and the clamping block is clamped in the opening.

2. The out-of-lock release mechanism of claim 1, wherein: the rivet and release coupling also have a disengaged condition.

3. The out-of-lock release mechanism of claim 2, wherein: the device also comprises an electric motor, a worm driven by the electric motor and a gear meshed with the worm for transmission, wherein the gear is connected with the locking connecting rod.

4. The out-of-lock release mechanism of claim 1, wherein: the first axis is located above the second axis.

5. The out-of-lock release mechanism of claim 1, wherein: the first axis is located below the second axis.

6. The out-of-lock release mechanism of claim 1, wherein: the spring is provided with a ring-shaped part connected with the first elastic arm and the second elastic arm, and the ring-shaped part is sleeved on the clamping block.