CN220979146U - Tail door lock and motor vehicle - Google Patents

Abstract

The present disclosure provides a tail gate lock, comprising: a lock body and a lock tongue; the pawl is rotatably arranged on the lock body, and the lock tongue can be kept at a full-locking position when the pawl is positioned at a first position; when the pawl is in the second position, the lock tongue can be kept in a half-lock position; and when the pawl is in a third position, the locking bolt can be completely released; a snowload device having an operative position and an inoperative position, wherein the snowload device is operable to retain the pawl in a position fully releasing the locking bolt when in the operative position; allowing the pawl to rotate in a direction approaching the first position when the snow load device is in the inactive position; and a drive device for driving the pawl to rotate in a direction approaching the third position and for driving the snow load device to move from the rest position to the movement position. The present disclosure also provides a motor vehicle.

Description

Tail door lock and motor vehicle

Technical Field

The present disclosure relates to a lock device for an automobile, and more particularly, to a tail gate lock and an automobile.

Background

The automobile tail door is generally overcome the gravity of the door and the resistance of the mechanism by the elastic force of the sealing strip after being unlocked, so that the tail door is kept in an unlocked state, but in order to ensure that the resistance is not too large when the door is closed, the elastic force of the sealing strip cannot be too large, so that when the automobile tail door accumulates a lot of snow on a snowy day, the elastic force of the sealing strip cannot keep the door in an opened state, and the tail door cannot be opened.

In the prior art, a snow-loaded automobile tail door lock is provided to solve the technical problems. However, such a tail door lock with a snow load function generally includes a snow load lever, and includes a driving device and a reset device capable of driving the snow load lever, which makes the structure of the tail door lock complex and is prone to various faults.

Disclosure of Invention

In order to solve one of the above technical problems, the present disclosure provides a tail gate lock and a motor vehicle.

According to one aspect of the present disclosure, there is provided a tail gate lock, comprising:

The lock body is provided with a lock body,

The lock tongue is rotatably arranged on the lock body and is provided with a full lock position, a half lock position and an open position in the process of rotating relative to the lock body;

A pawl rotatably disposed in the lock body and having a first position, a second position, and a third position when rotated relative to the lock body, wherein the pawl is in the first position capable of holding the locking bolt in a fully locked position; when the pawl is in the second position, the lock tongue can be kept in a half-lock position; and when the pawl is in a third position, the locking bolt can be completely released;

A snowload device having an operative position and an inoperative position, wherein the snowload device is operable to retain the pawl in a position fully releasing the locking bolt when in the operative position; allowing the pawl to rotate in a direction approaching the first position when the snow load device is in the inactive position;

And the driving device is used for driving the pawl to rotate towards a direction approaching to the third position and driving the snow load device to move from the non-working position to the movement position.

According to at least one embodiment of the present disclosure, the driving device includes a motor and a worm gear drivingly connected to the motor, the worm gear being capable of driving the pawl and the snowload device simultaneously and rotating the pawl in a direction approaching a third position, and for driving the snowload device from a rest position to a movement position.

According to at least one embodiment of the present disclosure, the worm gear is provided with at least one first pushing member for pushing the pawl to rotate in a direction approaching the third position.

According to at least one embodiment of the present disclosure, the pawl is provided with a groove, and the first pushing member contacts with a sidewall of the groove of the pawl, and when the worm wheel rotates, the first pushing member contacts with the sidewall of the groove and pushes the pawl to rotate.

According to at least one embodiment of the present disclosure, the recess is configured to: when the pawl is in the third position and the worm gear is further rotated, the first pusher is disengaged from the pawl.

According to at least one embodiment of the present disclosure, the number of the first pushing members is at least two, and when one of the first pushing members is out of the groove, the other first pushing member is blocked by the pawl.

According to at least one embodiment of the present disclosure, the pawl includes a stopper formed at one side of the groove, and the stopper is located on a movement path of the first pusher when the pawl is in the third position.

According to at least one embodiment of the present disclosure, the pawl further comprises a position detecting structure for cooperating with the micro switch to obtain the position of the pawl.

According to at least one embodiment of the present disclosure, the position detection structure does not trigger the micro switch when the pawl is in the first position; when the pawl is in the third position, the position detection structure triggers the micro switch.

According to at least one embodiment of the present disclosure, the worm gear is provided with at least one second pushing member, and the second pushing member is used for pushing the snow carrier device to rotate, so that the snow carrier device can rotate from the non-working position to the working position.

According to at least one embodiment of the present disclosure, the snowload device includes a drive lever member, and the second pusher is configured to push the snowload device from the inactive position to the active position by pushing the drive lever member.

According to at least one embodiment of the present disclosure, the second pusher can clear the drive rod member when the snowload device is in an operating position and the worm gear continues to rotate.

According to the tail gate lock of at least one embodiment of the present disclosure, the number of the second pushers is the same as the number of the first pushers, and the first pushers and the second pushers are located on both sides of the worm wheel in the axial direction, respectively.

According to at least one embodiment of the present disclosure, the first and second pushers each extend in an axial direction of the worm wheel, and the first and second pushers are located on the same straight line parallel to the axial direction.

A tail gate lock according to at least one embodiment of the present disclosure, further comprising: the first torsion spring is used for enabling the lock tongue to rotate towards the opening position.

A tail gate lock according to at least one embodiment of the present disclosure, further comprising: and a second torsion spring for moving the pawl toward the first position.

A tail gate lock according to at least one embodiment of the present disclosure, further comprising: and a third torsion spring for maintaining the snowload device in a non-operative or operative position.

According to at least one embodiment of the present disclosure, the torsion spring is disposed away from the center of rotation of the snowload device.

According to at least one embodiment of the present disclosure, the snow load device further comprises a reset lever component, and the reset lever component is driven to act and enable the snow load device to leave the working position in the process of moving the lock tongue to the full lock position.

According to another aspect of the present disclosure, there is provided a motor vehicle including the tail gate lock described above.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic view of a use state of a tail gate lock according to one embodiment of the present disclosure.

Fig. 2 is a schematic structural view of a tail gate lock according to one embodiment of the present disclosure.

Fig. 3 and 4 are schematic views of an internal structure of a tail gate lock according to one embodiment of the present disclosure.

Fig. 5 and 6 are schematic diagrams of the location of a snowmobile according to one embodiment of the present disclosure.

Fig. 7 is a schematic structural view of a worm gear according to one embodiment of the present disclosure.

Fig. 8 is a schematic view of another angle of a worm gear according to an embodiment of the present disclosure.

Fig. 9 is a schematic structural view of a pawl according to one embodiment of the present disclosure.

Fig. 10 is a schematic structural view of a snowmobile according to one embodiment of the present disclosure.

The reference numerals in the drawings specifically are:

100 lock body

101 Unlocking hole

200 Spring bolt

201 First stop notch

202 Second stop notch

203-Stage

300 Pawl

301 Stop projection

302 Poking hole

303 Unlocking part

304 Stop part

305 Position detection structure

306 Stop block

400 Snow load device

401 Rotating part

402 Drive rod assembly

403 Reset lever component

404 Restoring force providing part

405 Third torsion spring

500 Driving device

501 Motor

502 Worm

503 Worm gear

504 First pusher

505 Second pusher

600 Micro-switch

700 Cushion pad.

Detailed Description

The present disclosure is described in further detail below with reference to the drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant content and not limiting of the present disclosure. It should be further noted that, for convenience of description, only a portion relevant to the present disclosure is shown in the drawings.

In addition, embodiments of the present disclosure and features of the embodiments may be combined with each other without conflict. The technical aspects of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Unless otherwise indicated, the exemplary implementations/embodiments shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Thus, unless otherwise indicated, features of the various implementations/embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concepts of the present disclosure.

The use of cross-hatching and/or shading in the drawings is typically used to clarify the boundaries between adjacent components. As such, the presence or absence of cross-hatching or shading does not convey or represent any preference or requirement for a particular material, material property, dimension, proportion, commonality between illustrated components, and/or any other characteristic, attribute, property, etc. of a component, unless indicated. In addition, in the drawings, the size and relative sizes of elements may be exaggerated for clarity and/or descriptive purposes. While the exemplary embodiments may be variously implemented, the specific process sequences may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in reverse order from that described. Moreover, like reference numerals designate like parts.

When an element is referred to as being "on" or "over", "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there are no intervening elements present. For this reason, the term "connected" may refer to physical connections, electrical connections, and the like, with or without intermediate components.

For descriptive purposes, the present disclosure may use spatially relative terms such as "under … …," under … …, "" under … …, "" lower, "" above … …, "" upper, "" above … …, "" upper "and" side (e.g., as in "sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. In addition to the orientations depicted in the drawings, the spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture. For example, if the device in the figures is turned over, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "below … …" may encompass both an orientation of "above" and "below". Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising," and variations thereof, are used in the present specification, the presence of stated features, integers, steps, operations, elements, components, and/or groups thereof is described, but the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximation terms and not as degree terms, and as such, are used to explain the inherent deviations of measured, calculated, and/or provided values that would be recognized by one of ordinary skill in the art.

Fig. 1 is a schematic view of a use state of a tail gate lock according to one embodiment of the present disclosure. Fig. 2 is a schematic structural view of a tail gate lock according to one embodiment of the present disclosure.

As shown in fig. 1 and 2, the tail gate lock of the present disclosure may include a lock body 100, a latch bolt 200, a pawl 300, a snowmobile 400, and a drive 500, among other components.

When the tail gate lock of the present disclosure is used, it can be fixed to one of a body or a tail gate of an automobile, and accordingly, a striker is fixed to the other of the body and the tail gate of the automobile, and locking of the striker is achieved by the tail gate lock, thereby achieving locking of the tail gate of the automobile. Preferably, the components of the lock body 100, the latch bolt 200, the pawl 300, the snowmobile 400, and the driving device 500 of the present disclosure are arranged on a substantially flat surface, thereby enabling a saving in arrangement space, facilitating adaptation of the tail gate lock of the present disclosure to different vehicle models.

Specifically, the lock body 100 has an opening, and at least a portion of the striker can enter the opening, and when the striker is hooked by the lock tongue 200, the striker can be locked and held between the lock tongue 200 and the lock body 100, and the lock tongue is in the full lock position. On the other hand, when the latch bolt 200 is in the open position, the striker is allowed to escape from the opening of the lock body, thereby enabling the tailgate of the automobile to be opened by external force.

The lock tongue 200 is rotatably disposed on the lock body 100, and the lock tongue 200 has a full lock position, a half lock position, and an open position during rotation relative to the lock body 100; more specifically, the latch bolt 200 may be rotatably disposed at the lock body 100 through a first hinge shaft, and the tail gate lock may further include a first torsion spring that may be sleeved on the first hinge shaft, and one end of which is disposed against the latch bolt 200 and the other end of which is disposed against the lock body 100, whereby the first torsion spring may apply a force to the latch bolt 200 and cause the latch bolt 200 to have a tendency to rotate toward an open position, in other words, the first torsion spring is used to cause the latch bolt 200 to rotate toward an open position.

That is, in the process of closing the tail door lock, after the striker enters the opening of the lock body 100, the lock tongue 200 is pushed to rotate, and the lock tongue 200 is made to rotate from the open position to the half-lock position; further, when the striker further pushes the latch bolt 200 to rotate, the latch bolt 200 can be further rotated from the half-lock position to the full-lock position, and the locking is achieved by cooperating with the action of the pawl 300 described below. In other words, during the closing of the tail gate of the present disclosure, power is provided by the striker.

The pawl 300 is rotatably disposed in the lock body 100 and the pawl 300 has a first position, a second position, and a third position when rotated relative to the lock body 100. In a specific embodiment, the pawl 300 may be rotatably disposed on the lock body 100 through a second hinge shaft, and the tail gate lock may further include a second torsion spring, which may be sleeved on the second hinge shaft, and one end of which is disposed on the pawl 300 and the other end of which is disposed on the lock body 100, so that the second torsion spring may apply a force to the pawl and cause the pawl 300 to have a tendency to rotate toward the first position, in other words, the second torsion spring is used to cause the pawl 300 to rotate toward the first position.

Fig. 3 and 4 are schematic views of an internal structure of a tail gate lock according to one embodiment of the present disclosure.

The pawl 300 of the tail gate lock is now in the first position, as shown in fig. 3. In this position, the pawl 300 is able to hold the locking bolt 200 in the fully locked position. That is, at this time, a stop protrusion 301 is provided on the side of the pawl 300 adjacent to the latch bolt 200, and a first stop recess 201 is provided on the side of the latch bolt 200 adjacent to the pawl 300, and at this time, the stop protrusion 301 is engaged with the first stop recess 201, so that clockwise rotation of the latch bolt 200 can be restricted, and thus the latch bolt 200 can be maintained in the full lock position.

As shown in fig. 4, the pawl 300 of the tail gate lock is in the second position (the deadbolt has not yet been actuated). In this position, the pawl 300 is able to hold the locking bolt in the half-lock position. Specifically, the pawl 300 is driven and moves from the first position to the second position, the stop protrusion 301 of the pawl 300 moves away from the first stop recess 201, and the latch tongue 200 moves clockwise and rotates by a preset angle by the first torsion spring. At this time, since the latch 200 is further provided with the second stopper recess 202 at a side close to the pawl 300, the stopper protrusion 301 can be engaged with the second stopper recess 202, so that further clockwise rotation of the latch 200 can be restricted, and thus the latch 200 can be maintained at the half-lock position.

Further, when the pawl 300 is further rotated, the stop protrusion 301 of the pawl 300 is moved from the second position to the third position, and is separated from the second stop recess 202, the latch bolt 200 is further moved clockwise by the first torsion spring, and is rotated by a predetermined angle, and finally the latch bolt 200 stays in the open position, that is, the latch bolt 200 is completely released when the pawl 300 is in the third position; the bolt 200 will now no longer be under the control of the pawl 300.

Fig. 5 and 6 are schematic diagrams of the location of a snowmobile according to one embodiment of the present disclosure.

In this disclosure, the snowmobile 400 has an operative position and an inoperative position. Wherein, as shown in fig. 5, the snowmobile 400 is in an inactive position. At this time, the snowload 400 is away from the pawl 300 without affecting the rotation of the pawl 300. That is, when the snowload device 400 is in the rest position, the pawl 300 is allowed to rotate in a direction approaching the first position.

On the other hand, as shown in fig. 6, the snowmobile 400 is in an operational position. At this time, the snowload 400 can contact the pawl 300, thereby maintaining the pawl 300 in a position in which the tongue 200 is completely released, i.e., maintaining the pawl 300 in the third position, and not allowing the pawl 300 to rotate in a direction approaching the first position.

The driving device 500 is used for driving the pawl 300 to rotate towards a direction approaching the third position and for driving the snow load device 400 to move from the non-working position to the working position.

That is, the present disclosure realizes the driving of the snow load device 400 and the pawl 300 by one driving device 500, simplifies the structure of the tail gate lock, and improves the reliability of the tail gate lock on the premise of having the same function.

On the other hand, the lock body 100 is provided with an unlocking hole 101, at this time, a pulling hole 302 is provided at a position of the pawl 300 corresponding to the unlocking hole 101, and in actual use, a tool may be inserted into the pulling hole 302 through the unlocking hole 101, and since the unlocking hole 101 is formed into a circular arc shape as a whole and has a certain length, at this time, the pawl 300 may be pulled from the first position to the third position, and the manual unlocking of the tail door lock is realized.

Therefore, when the tail gate lock disclosed by the invention is used, the snow load function is started only when the tail gate lock is electrically unlocked, namely, the snow load device 400 can be driven and is positioned at the working position when the tail gate lock is electrically unlocked; the snow load device 400 does not act and activate during manual interpretation and closing of the door, thereby making the function of the lock more reliable.

In the present disclosure, as shown in fig. 5, the driving device 500 includes a motor 501, and the motor 501 may be a dc motor, preferably a dc brushless motor, and the unlocking energy of the tail gate lock is provided through the motor 501. The output shaft of the motor 501 is provided with a worm 502, the worm 502 is in transmission connection with a worm wheel 503, and at this time, the worm wheel 503 is rotatably provided in the lock body 100, so that when the motor 501 rotates, the worm wheel 503 can be made to rotate.

In a preferred embodiment, the lock body 100 includes an upper space, the motor 501 is disposed in the upper space, and the motor 501 is disposed horizontally, with the worm gear 503 being located below the plane of the motor 501. More preferably, the upper space may be formed as a closed space, and a circuit board or the like for driving the motor 501 may be further provided in the upper space, thereby the tailgate lock of the present disclosure has better waterproof performance.

In the present disclosure, the worm gear 503 is capable of simultaneously driving the pawl 300 and the snowload 400, and rotating the pawl 300 in a direction approaching the third position, and for driving the snowload 400 from the rest position to the movement position.

Fig. 7 is a schematic structural view of a worm gear according to one embodiment of the present disclosure. Fig. 8 is a schematic view of another angle of a worm gear according to an embodiment of the present disclosure.

As shown in fig. 7 and 8, the worm wheel 503 includes an axial direction, that is, a rotation axis of the worm wheel 503. The worm wheel 503 is provided with at least one first pushing member 504 and at least one second pushing member 505.

The first pushing member 504 is configured to push the pawl 300 to rotate in a direction approaching the third position, that is, in the direction shown in fig. 3, the first pushing member 504 is configured to push the pawl 300 to rotate clockwise.

Fig. 9 is a schematic structural view of a pawl according to one embodiment of the present disclosure.

As shown in fig. 9, the pawl 300 includes an unlocking portion 303, a stopper portion 304, a position detecting structure 305, and the like. And the pawl 300 is formed with a groove by the unlocking portion 303, the stopper portion 304, the position detecting structure 305, and the like. That is, the stopper 304 and the position detecting structure 305 are located at one side of the groove and formed as at least a portion of the side wall of the groove, and the unlocking portion 303 is located at the other side of the groove and formed as at least a portion of the side wall of the groove.

The first pushing member 504 contacts with the sidewall of the groove of the pawl 300, and when the worm wheel 503 rotates, the first pushing member 504 contacts with the sidewall of the groove and pushes the pawl 300 to rotate. More specifically, the first pushing member 504 contacts with a sidewall of the recess formed by the unlocking portion 303, and enables the first pushing member 504 to push the unlocking portion 303 and the pawl 300 to rotate.

In a preferred embodiment, the first pusher 504 extends in the axial direction of the worm wheel 503, and the first pusher 504 has corners, the corners of the first pusher 504 being in contact with the side walls of the groove when the first pusher 504 is in contact with the side walls of the groove, and thereby providing a small sliding friction between the first pusher 504 and the unlocking portion 303.

In the present disclosure, the groove is provided as: when the pawl 300 is in the third position and the worm wheel 503 is further rotated, the first pusher 504 is disengaged from the pawl 300. Therefore, when the tail door lock disclosed by the invention is used, the motor 501 is not required to reversely rotate and reset, but directly rotates forward again, so that the next unlocking action can be realized.

The first pushing members 504 are provided in at least two, and when one of the first pushing members 504 is out of the groove, the other first pushing member 504 is blocked by the pawl 300. In a specific embodiment, the first pushing members 504 are provided in two, and the two first pushing members 504 are arranged symmetrically along the axial direction of the worm wheel 503, so that the tail door lock of the present disclosure does not need to detect the position of the motor, but only needs to provide a safety clutch (otherwise referred to as a torque limiter or a safety coupling) on the motor 501, and connect the worm 502 through the safety clutch. At this time, when the first pushing member 504 of the worm wheel 503 is stopped by the stopping portion 304 of the pawl 300, the safety clutch is disengaged, and even if the motor 501 is controlled to rotate, the worm wheel 503 is not further rotated or damaged, and thus the tail gate lock of the present disclosure is relatively easy to control.

In addition, when another first pusher 504 is blocked by the pawl 300, the motor 501 is locked, at which time the motor 501 may be de-energized. Because the worm gear assembly itself has a certain clearance, the other first pushing member 504 will move in the opposite direction by a small amount of displacement, and at this time, the other first pushing member 504 will no longer be in close contact with the pawl, so that the other first pushing member 504 will not affect the movement of the pawl 300 to the first position.

In another control, when the tail gate lock is in the unlocking process, the motor may be energized for a preset time during which the pawl 300 is pushed to the third position and one of the first pushers 504 is disengaged from the recess and the other first pusher 504 is blocked by the pawl. After a preset time, the motor 501 is powered off, and the worm gear assembly itself has a certain gap, so that the other first pushing member 504 will move in the opposite direction by a small amount of displacement, and at this time, the other first pushing member 504 will not be in close contact with the pawl, so that the other first pushing member 504 will not affect the movement of the pawl 300 to the first position.

More specifically, when the pawl 300 is in the third position, the stop 304 is positioned in the path of movement of the first pusher 504, whereby rotation of the worm wheel 503 can be restricted by the stop 304.

In the present disclosure, the position detecting structure 305 is configured to cooperate with the micro-switch 600 to obtain the position of the pawl 300. More specifically, when the pawl 300 is in the first position, the position detecting structure 305 does not trigger the microswitch 600; so that the control system can know that the tail door lock is in a full-lock state or a half-lock state at the moment; when the pawl 300 is in the third position, the position detecting structure 305 activates the micro-switch 600 so that the control system is aware that the tail gate lock is in the open state.

The second pushing member 505 is configured to push the snowmobile 400 to rotate, so that the snowmobile 400 can rotate from the inactive position to the active position.

Fig. 10 is a schematic structural view of a snowmobile according to one embodiment of the present disclosure.

As shown in fig. 10, the snowload device 400 includes a rotating portion 401, a driving lever member 402, a return lever member 403, a return force providing portion 404, and the like.

The rotating part 401 is rotatably disposed on the lock body 100, and enables the snowload device 400 to rotate relative to the lock body 100. In the present disclosure, one end of the driving rod member 402 is connected to the rotating portion 401, and the length direction of the driving rod member 402 can be perpendicular or approximately perpendicular to the rotation axis of the rotating portion 401, so that the second pushing member 505 has a large moment arm when pushing the driving rod member 402 to act, and can easily push the snow carrier 400 to rotate, and further, the snow carrier 400 is moved from the non-working position to the working position.

More preferably, the pawl 300 has a stop block 306, wherein the other end of the drive rod member 402 is capable of contacting the stop block 306 and abutting the stop block 306 when the snowload device 400 is in the operating position to prevent movement of the pawl 300 from the third position in the direction of the first position.

In the present disclosure, the second pusher 505 is able to pass over the drive rod member 402 when the snowload device 400 is in the operating position and the worm gear 503 continues to rotate. Thereby preventing the worm gear 503 of the present disclosure from rotating in the opposite direction.

In a preferred embodiment, the number of second pushers 505 is the same as the number of first pushers 504; more specifically, the number of the first pushing members 504 and the second pushing members 505 is 2. And, the first pushing member 504 and the second pushing member 505 are respectively located at both sides of the worm wheel 503 in the axial direction. Accordingly, the pawl 300 and the snow carrier 400 are also located on both sides of the axis direction of the worm wheel 503, respectively. More specifically, the first pusher 504 and the pawl 300 are located on one side of the worm wheel 503, and the second pusher 505 and the snow carrier 400 are located on the other side of the worm wheel 503.

More specifically, the second pushing member 505 extends in the axial direction of the worm wheel 503, and the first pushing member 504 and the second pushing member 505 are located on the same straight line parallel to the axial direction. That is, the first pushing member 504 and the second pushing member 505 are located at the same angle in the circumferential direction of the worm wheel 503.

One end of the reset lever member 403 is connected to the rotating portion 401, and the other end extends toward the direction of the latch bolt 200. During movement of the locking bolt 200 to the fully locked position, the reset lever member 403 is actuated and the snowload device 400 is moved from the operating position. Further, when the snowload device 400 leaves the working position, the pawl 300 can rotate in a direction approaching the first position, and the tail gate lock is locked.

In a specific embodiment, the latch bolt 200 is provided with a boss 203, and the boss 203 can contact the reset lever member 403 and push the snowload device 400 to rotate. In a preferred embodiment, the position of the boss 203 is set to: when the lock tongue 200 passes over the half-lock position, the boss 203 contacts with the reset lever member 403 and pushes the snow load device 400 to move from the working position to the non-working position, that is, the tail gate lock of the present disclosure is used, and the snow load device 400 is released only when the tail gate lock is confirmed to be in the locking process, thereby improving the safety of the tail gate lock of the present disclosure in use.

In the present disclosure, one end of the restoring force providing part 404 is connected to the rotating part 401, and the third torsion spring 405 is used to maintain the snowload device 400 at the non-operating position or the operating position.

Specifically, the center of the third torsion spring 405 is disposed away from the rotation center of the snowload device 400, so that the third torsion spring 405 is formed as an eccentric torsion spring, at this time, one end of the third torsion spring 405 is disposed at one end of the restoring force providing portion 404, and the other end of the third torsion spring 405 is disposed at the lock body, and the third torsion spring 405 is capable of holding the snowload device 400 in the working position and holding the snowload device 400 in the non-working position.

In other words, when the snowload 400 is in the active and inactive positions, the winding axis of the third torsion spring 405 may change, i.e., the coils of the off-center torsion spring may not be fixed, thereby the off-center torsion spring may be able to hold the snowload in the active or inactive position.

In the tail gate lock of the present disclosure, it may further include a manual unlocking lever, one end of which can be inserted into the pulling hole 302, so that the tail gate lock is manually unlocked.

The tail gate lock of the present disclosure further includes a cushion 700, the cushion 700 being disposed in the lock body 100 and at least partially positioned in the opening of the lock body 100 such that the cushion 700 can cushion a striker during locking.

According to another aspect of the present disclosure, there is provided a motor vehicle including the tail gate lock described above.

In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

It will be appreciated by those skilled in the art that the above-described embodiments are merely for clarity of illustration of the disclosure, and are not intended to limit the scope of the disclosure. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present disclosure.

Claims (20)

1. A tail gate lock, comprising:

The lock body is provided with a lock body,

The lock tongue is rotatably arranged on the lock body and is provided with a full lock position, a half lock position and an open position in the process of rotating relative to the lock body;

A pawl rotatably disposed in the lock body and having a first position, a second position, and a third position when rotated relative to the lock body, wherein the pawl is in the first position capable of holding the locking bolt in a fully locked position; when the pawl is in the second position, the lock tongue can be kept in a half-lock position; and when the pawl is in a third position, the locking bolt can be completely released;

A snowload device having an operative position and an inoperative position, wherein the snowload device is operable to retain the pawl in a position fully releasing the locking bolt when in the operative position; allowing the pawl to rotate in a direction approaching the first position when the snow load device is in the inactive position;

And the driving device is used for driving the pawl to rotate towards a direction approaching to the third position and driving the snow load device to move from the non-working position to the movement position.

2. The tail gate lock of claim 1, wherein the drive means comprises a motor and a worm gear drivingly connected to the motor, the worm gear being capable of simultaneously driving the pawl and the snowload means and causing the pawl to rotate in a direction approaching a third position and for driving the snowload means from a rest position to a movement position.

3. The tail gate lock of claim 2, wherein the worm gear is provided with at least one first pusher for pushing the pawl to rotate in a direction approaching the third position.

4. A tail gate lock according to claim 3, wherein the pawl is provided with a recess, and the first pusher contacts a side wall of the recess of the pawl and pushes the pawl to rotate when the worm wheel rotates.

5. The tail gate lock of claim 4, wherein the recess is configured to: when the pawl is in the third position and the worm gear is further rotated, the first pusher is disengaged from the pawl.

6. The tail gate lock of claim 5, wherein the first pushers are provided in at least two, and one of the first pushers is blocked by the pawl after the other first pushers are disengaged from the recess.

7. The tail gate lock of claim 6, wherein the pawl includes a stop formed on one side of the recess, and wherein the stop is located in the path of movement of the first pusher when the pawl is in the third position.

8. The tail gate lock of claim 3, wherein the pawl further comprises a position detection structure for cooperating with the microswitch to obtain the position of the pawl.

9. The tail gate lock of claim 8, wherein the position detection structure does not trigger the micro switch when the pawl is in the first position; when the pawl is in the third position, the position detection structure triggers the micro switch.

10. A tail gate lock according to claim 3, wherein the worm gear is provided with at least one second pusher for pushing the snow carrier into rotation to enable rotation of the snow carrier from the inactive position to the active position.

11. The tail gate lock of claim 10, wherein the snowload device includes a drive lever member, the second pusher being configured to push the snowload device from the inactive position to the active position by pushing the drive lever member.

12. The tail gate lock of claim 11, wherein the second pusher is capable of passing over the drive rod member when the snowload device is in an operating position and the worm gear continues to rotate.

13. The tail gate lock of claim 12, wherein the number of second pushers is the same as the number of first pushers, and the first and second pushers are located on either side of the axial direction of the worm gear, respectively.

14. The tail gate lock of claim 13, wherein the first and second pushers each extend in an axial direction of the worm gear and are on a same line parallel to the axial direction.

15. The tail gate lock of claim 1, further comprising: the first torsion spring is used for enabling the lock tongue to rotate towards the opening position.

16. The tail gate lock of claim 1, further comprising: and a second torsion spring for moving the pawl toward the first position.

17. The tail gate lock of claim 1, further comprising: and a third torsion spring for maintaining the snowload device in a non-operative or operative position.

18. The tail gate lock of claim 17, wherein the torsion spring is disposed away from a center of rotation of the snowload device.

19. The tail gate lock of claim 1, wherein the snowload device further comprises a reset lever member, wherein the reset lever member is actuated and the snowload device is moved from the operating position during movement of the deadbolt to the fully latched position.

20. A motor vehicle comprising a tail gate lock according to any one of claims 1 to 19.