CN217712157U - Tail door lock and car - Google Patents

Abstract

The utility model discloses a tail-gate lock and car, include: a lock case provided with a locking notch; the lock body assembly is arranged in the lock box and comprises a ratchet wheel and a pawl, the ratchet wheel is rotatably arranged on the side of the lock opening through a ratchet wheel shaft, the ratchet wheel is provided with a first ratchet wheel tooth and a second ratchet wheel tooth, a locking groove matched with a lock catch embedded into the lock opening is formed in the outer peripheral surface of the ratchet wheel through the first ratchet wheel tooth, the second ratchet wheel tooth is matched with the pawl to limit the ratchet wheel in a locking state, the pawl is rotatably arranged on the lock box through the pawl shaft, the pawl is provided with a first unlocking driving arm, and the first unlocking driving arm is provided with an inclined slope; the unblock subassembly, including uide bushing and unblock button, the uide bushing is installed in the lock box, and the inside direction inner chamber of injecing the guide unblock button and removing is injecing to the uide bushing, and unblock button sets up in the direction inner chamber, unblock button's tip and domatic butt. The utility model discloses thereby can open the tail-gate by quick manual unblock, increase the way that the passenger fled from the car.

Description

Tail door lock and automobile

Technical Field

The utility model is used for the automobile field especially relates to a tail-gate lock and car.

Background

Passenger safety issues in automotive vehicles during emergency situations (e.g., wading, collision, fire, etc.) have also received widespread attention. When the traditional automobile tail door lock is used, the pawl in the tail door lock needs to be stirred by pulling or pushing the opening lever or a special iron rod through a wire drawing or a connecting rod to stir the shifting piece, the pawl is disengaged from the ratchet wheel, and the lock catch can be separated, so that the tail door lock is unlocked. The process is difficult, consumes long time, and under emergency, when the passenger needs to escape in an emergency, the passenger can endanger life and property safety without knowing how to unlock the automobile, and the problem of potential safety hazard exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a tail-gate lock and car, thereby it can be fast manual unblock open the tail-gate, increases the route that the passenger fled from the car.

The utility model provides a technical scheme that its technical problem adopted is:

in a first aspect, a tailgate lock, comprising:

the lock box is provided with a lock opening for embedding the lock catch, and the lock opening is inwards concaved to a certain depth from the edge of the lock box;

the lock body assembly is arranged in the lock box and comprises a ratchet wheel and a pawl, the ratchet wheel is rotatably arranged on the side of the lock opening through a ratchet wheel shaft, the ratchet wheel is provided with a first ratchet wheel tooth and a second ratchet wheel tooth, the ratchet wheel forms a locking groove which is matched with a lock catch embedded into the lock opening on the outer peripheral surface of the ratchet wheel through the first ratchet wheel tooth, the second ratchet wheel tooth is matched with the pawl to limit the ratchet wheel in a locking state, the pawl is rotatably arranged on the lock box through a pawl shaft, the pawl is provided with a first unlocking driving arm, and the first unlocking driving arm is provided with an inclined slope;

the unblock subassembly, including uide bushing and unblock button, the uide bushing install in lock box, the inside guide of injecing of uide bushing the direction inner chamber that the unblock button removed, the unblock button set up in the direction inner chamber, the tip of unblock button with domatic butt, the unblock button is used for following when pressing the direction inner chamber sinks and through with domatic cooperation produces the drive the pawl with the drive power that the ratchet breaks away from.

With reference to the first aspect, in certain implementations of the first aspect, the guide sleeve is installed outside the lock box, the unlocking button extends from a first end to a second end along a length direction, the first end of the unlocking button extends out of the guide sleeve, and the second end of the unlocking button extends into the lock box.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the second end of the unlocking button is provided with a ball abutting against the slope.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, a first elastic reset piece for driving the unlocking button to float and reset is arranged inside the guide sleeve.

With reference to the first aspect and the foregoing implementation manners, in certain implementation manners of the first aspect, the guide sleeve extends from the first end plate to the second end plate along a direction parallel to the pawl shaft, the first end plate and the second end plate are both provided with through holes, the first end of the unlocking button passes through the through hole of the first end plate and extends out of the guide sleeve, the second end of the unlocking button passes through the through hole of the second end plate and extends into the lock box, an axial limiting flange is arranged on one side of the unlocking button, which is close to the second end plate, of the first end plate, one end of the first elastic resetting member abuts against the axial limiting flange, and the other end of the first elastic resetting member abuts against the second end plate.

With reference to the first aspect and the implementations described above, in certain implementations of the first aspect, the pawl and the unlocking assembly are disposed on opposite sides of the locking notch relative to the ratchet wheel.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the method further includes:

and the pawl is provided with a second unlocking driving arm matched with the driving end of the electric actuator.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the method further includes:

and the detection switch is arranged on the lock box and used for detecting the position information of the ratchet wheel.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the lock body assembly further includes a second elastic resetting piece for driving the ratchet to automatically spring open after unlocking, and a third elastic resetting piece for driving the pawl to automatically cooperate with the ratchet.

In a second aspect, an automobile comprises the rear door lock in any one of the implementation manners of the first aspect.

One of the above technical solutions has at least one of the following advantages or beneficial effects: the utility model provides a tail-gate lock, set up the unblock subassembly that more is suitable for manual direct completion unblock on the lock box, when needs are opened the tail-gate from the inside manual unblock of accomplishing fast of tail-gate, the unblock button of unblock subassembly can be directly pressed, the unblock button sinks along the direction inner chamber of uide bushing, and produce drive pawl pivoted drive power through cooperating with domatic, stir the pawl in the tail-gate lock with the help of this drive power, pawl and ratchet throw off the meshing, the hasp can be deviate from, realize the unblock of tail-gate lock from this. The difficulty of the process is greatly reduced, the time consumption is short, and under the emergency condition, when a passenger needs to escape emergently, the passenger can know how to unlock the tail gate more easily, so that the tail gate can be unlocked manually quickly, and the way for the passenger to escape from the vehicle is increased.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an embodiment of the tail door lock of the present invention;

FIG. 2 is a schematic diagram of the internal structure of one embodiment shown in FIG. 1;

FIG. 3 is a top view of one embodiment shown in FIG. 1;

fig. 4 isbase:Sub>A sectional view taken atbase:Sub>A-base:Sub>A in fig. 3.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it does not indicate or suggest that the indicated technical features must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as a limitation to the present invention.

In the utility model, the meaning of a plurality of is one or more, the meaning of a plurality of is more than two, and the meaning of more than two is understood as not including the number; "above", "below", "within" and the like are understood to include the present numbers. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features is implicitly indicated or that the precedence of the indicated technical features is implicitly indicated.

In the present invention, unless otherwise explicitly defined, the terms "set", "install", "connect", and the like are to be understood in a broad sense, and for example, may be directly connected or may be indirectly connected through an intermediate medium; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Wherein, fig. 2 and fig. 4 show the reference direction coordinate system of the embodiment of the present invention, and the following describes the embodiment of the present invention with reference to the directions shown in fig. 2 and fig. 4.

An embodiment of the utility model provides a tail-gate lock, install in the car tail-gate during its use for opening and the locking of car tail-gate. Automobile tail-gate can provide the way of fleing for the passenger under emergency (if wading, collision, conflagration etc.), the utility model discloses the tail-gate lock can realize the manual unblock in inside fast, the potential safety hazard that the discharge unblock can not bring.

Referring specifically to fig. 1, 2, 3, 4, the tailgate lock includes a lock box 100, a lock body assembly, and a release assembly 300.

The lock box 100 is provided with a lock opening 101 for embedding the lock catch, the lock opening 101 is recessed by a certain depth from the edge of the lock box 100, the lock box 100 can be designed into a similar U-shaped structure, and when the tail door is closed, the lock catch can be embedded into the lock opening 101 along the closing path direction of the tail door and is matched with a lock body assembly inside the lock opening 101 to realize locking. Referring to fig. 1 and 2, the lock case 100 forms two mounting areas at the left and right sides of the fore shaft 101, which can be used to arrange the lock body assembly and the unlock assembly 300.

The lock body component is arranged in the lock box 100 and comprises a ratchet wheel 201 and a pawl 202, the ratchet wheel 201 is mounted on the side of the lock opening 101 in a shaft rotating mode through the ratchet wheel 201, the ratchet wheel 201 is provided with a first ratchet wheel tooth 203 and a second ratchet wheel tooth 204, the ratchet wheel 201 forms a locking groove 205 which is matched with a lock catch embedded in the lock opening 101 on the outer peripheral surface of the ratchet wheel 201 through the first ratchet wheel tooth 203, the locking groove 205 is crossed and overlapped with the lock opening 101 in the ratchet wheel rotating process, and the locking groove 205 extends to a certain depth from the outer peripheral surface of the ratchet wheel 201 to the axial direction of the ratchet wheel 201. The second ratchet teeth 204 are adapted to cooperate with the pawl 202 to restrain the ratchet wheel 201 in a locked condition, the pawl 202 being pivotally mounted to the lock box 100 by the pawl 202.

In the unlocked state of the tailgate lock, the locking groove 205 of the ratchet 201 faces the outer end of the fore shaft 101. When the lock catch is clamped into the lock opening 101, the lock catch is clamped into the locking groove 205 of the ratchet 201, when the lock catch moves towards the lock opening 101, the ratchet 201 is synchronously driven to rotate around the axis of the ratchet 201, and when the second ratchet teeth 204 of the ratchet 201 are matched with the pawl 202, the lock catch is reversely locked, so that the lock catch and the tail door lock are automatically locked when the tail door is closed.

Wherein the pawl 202 has a first unlocking drive arm 206, the first unlocking drive arm 206 being provided with an inclined ramp 207, by means of which ramp 207 the unlocking assembly 300 generates a drive force for rotating the pawl 202 about the pawl 202 axis. Specifically, referring to fig. 1, 2, 3, and 4, the unlocking assembly 300 includes a guide sleeve 301 and an unlocking button 302, the guide sleeve 301 is installed in the lock box 100, a guide inner cavity 303 for guiding the unlocking button 302 to move is defined inside the guide sleeve 301, the unlocking button 302 is disposed in the guide inner cavity 303, an end of the unlocking button 302 abuts against the slope 207, and the unlocking button 302 is configured to sink along the guide inner cavity 303 when pressed and generate a driving force for driving the pawl 202 to disengage from the ratchet 201 by matching with the slope 207, that is, by matching the unlocking button 302 with the slope 207 of the first unlocking driving arm 206, conversion from the pressing action to the unlocking action of the pawl 202 is achieved.

Combine fig. 1-4, the utility model discloses tail-gate lock among the technical scheme, set up the unblock subassembly 300 that more is suitable for manual direct completion unblock on lock box 100, when the tail-gate is opened to the inside manual unblock of accomplishing fast of tail-gate as needs, the unblock button 302 of unblock subassembly 300 can directly be pressed, unblock button 302 sinks along the direction inner chamber 303 of uide bushing 301, and produce drive pawl 202 pivoted drive power through cooperating with domatic 207, stir pawl 202 in the tail-gate lock with the help of this drive power, pawl 202 disengages with ratchet 201, the hasp can deviate from, thereby realize the unblock of tail-gate lock. This process degree of difficulty greatly reduced, it is short consuming time, and under emergency, when the passenger need promptly flee, the passenger knows how to unblock more easily to quick manual unblock is in order to open the tail-gate, increases the route that the passenger fled from the car.

In some embodiments, referring to fig. 1 and 4, the guide sleeve 301 is mounted outside the lock box, the unlock button 302 extends lengthwise from a first end 304 to a second end 305, the first end 304 of the unlock button 302 extends out of the guide sleeve 301, and the second end 305 of the unlock button 302 extends into the lock box. This embodiment installs the unlocking assembly 300 outside the lock box 100, which is more convenient for the passenger to identify and press, further reducing the difficulty of operation.

Wherein the unlocking button 302 can be slidably or rollably engaged with the sloping surface 207 of the first unlocking driving arm 206 to convert the pressing force of the unlocking button 302 into a tangential force for driving the pawl 202 to rotate, for example, in some embodiments, referring to fig. 4, the second end 305 of the unlocking button 302 is provided with a ball 306 abutting against the sloping surface 207, and the embodiment employs the ball 306 for engagement, so as to reduce the engagement friction between the unlocking button 302 and the pawl 202, and make the unlocking action smoother.

Further, referring to fig. 2 and 4, the inside first elastic reset piece 307 that is used for driving the unlocking button 302 to float and reset that is arranged on the guide sleeve 301, the first elastic reset piece 307 can adopt a spring, an elastic sheet and the like, and the unlocking button 302 can automatically return to the top position of the guide sleeve 301 under the action of the first elastic reset piece 307, so that the influence on the normal opening and closing functions of the lock body assembly is avoided.

Further, referring to fig. 4, the guide sleeve 301 extends from the first end plate 308 to the second end plate 309 along a direction parallel to the axis of the pawl 202, the second end plate 309 of the guide sleeve 301 is fixedly mounted on the lock box 100, the first end plate 308 protrudes from the surface of the lock box 100 by a certain height, both the first end plate 308 and the second end plate 309 are provided with through holes, the first end 304 of the unlocking button 302 passes through the through hole of the first end plate 308 and extends out of the guide sleeve 301, and the second end 305 of the unlocking button 302 passes through the through hole of the second end plate 309 and extends into the interior of the lock box. The unlocking button 302 is provided with an axial limiting flange 310 at one side of the first end plate 308 close to the second end plate 309, one end of the first elastic resetting member 307 abuts against the axial limiting flange 310, and the other end of the first elastic resetting member 307 abuts against the second end plate 309. When unlocking is needed, the unlocking button 302 is pressed, the unlocking button 302 overcomes the elastic force of the first elastic resetting piece 307, moves towards the inside of the lock box 100, and after the unlocking button 302 is released, the unlocking button 302 automatically resets under the action of the first elastic resetting piece 307. Under the action of the first elastic reset piece 307, the axial limiting flange 310 of the unlocking button 302 abuts against the inner side of the first end plate 308, so that axial limiting is realized.

In some embodiments, referring to fig. 2, the pawl 202 and the unlocking assembly 300 are disposed on the opposite side of the lock opening 101 relative to the ratchet 201, and the components of the rear door lock are distributed in different installation areas of the lock case 100, so that the structure is more compact, and the volume of the rear door lock is further reduced.

In some embodiments, referring to fig. 1 and 2, the tailgate lock further includes an electric actuator 400, the electric actuator 400 being mounted to the lock box 100, the pawl 202 having a second unlocking drive arm 208 engaged with a drive end of the electric actuator 400. In this embodiment, the tail gate lock can be remotely and automatically opened through the electric actuator 400, and the electric actuator 400 and the unlocking component 300 form two independent unlocking schemes which are not interfered with each other, so that various automobile use scenes can be met.

Further, referring to fig. 2, the tailgate lock further includes a detection switch 401, and the detection switch 401 is disposed on the lock box 100 and is used for detecting the position information of the ratchet 201 and providing feedback for the entire vehicle system, in particular, the electric actuator 400.

Referring to fig. 2, the lock body assembly further includes a second elastic reset member for driving the ratchet 201 to automatically spring open after unlocking and a third elastic reset member for driving the pawl 202 to automatically cooperate with the ratchet 201. In order to limit the travel range of the ratchet wheel 201 and the pawl 202, limit structures respectively matched with the ratchet wheel 201 and the pawl 202 are arranged on the lock box 100 to avoid overtravel.

The embodiment of the utility model also provides an automobile, including the tail-gate lock in above arbitrary embodiment. In the embodiment, the tail gate can be quickly and manually unlocked from the interior of the tail gate, so that the escape way of passengers from the automobile is increased, and the potential safety hazard of the passengers of the automobile in emergency (such as wading, collision, fire and the like) is reduced.

In the description of the present specification, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope of the claims of the present application.

Claims (10)

1. A tailgate lock, comprising:

the lock box is provided with a lock opening for embedding the lock catch, and the lock opening is inwards concaved from the edge of the lock box by a certain depth;

the lock body assembly is arranged in the lock box and comprises a ratchet wheel and a pawl, the ratchet wheel is rotatably arranged on the side of the lock opening through a ratchet wheel shaft, the ratchet wheel is provided with a first ratchet wheel tooth and a second ratchet wheel tooth, the ratchet wheel forms a locking groove which is matched with a lock catch embedded into the lock opening on the outer peripheral surface of the ratchet wheel through the first ratchet wheel tooth, the second ratchet wheel tooth is matched with the pawl to limit the ratchet wheel in a locking state, the pawl is rotatably arranged on the lock box through a pawl shaft, the pawl is provided with a first unlocking driving arm, and the first unlocking driving arm is provided with an inclined slope;

the unblock subassembly, including uide bushing and unblock button, the uide bushing install in lock box, the inside guide of injecing of uide bushing the direction inner chamber that the unblock button removed, the unblock button set up in the direction inner chamber, the tip of unblock button with domatic butt, the unblock button is used for following when pressing the direction inner chamber sinks and through with domatic cooperation produces the drive the pawl with the drive power that the ratchet breaks away from.

2. The tailgate lock according to claim 1, wherein the guide sleeve is mounted outside the lock box, the unlock button extends lengthwise from a first end to a second end, the first end of the unlock button extends out of the guide sleeve, and the second end of the unlock button extends into the lock box.

3. A tailgate lock according to claim 2, characterized in that the second end of the unlocking button is provided with a ball bearing abutting the ramp.

4. The tailgate lock according to claim 2, characterized in that a first elastic reset element for driving the unlocking button to float and reset is arranged inside the guide sleeve.

5. The tail gate lock of claim 4, wherein the guide sleeve extends from the first end plate to the second end plate in a direction parallel to the pawl axis, the first end plate and the second end plate are both provided with through holes, the first end of the unlocking button extends out of the guide sleeve through the through hole of the first end plate, the second end of the unlocking button extends into the lock box through the through hole of the second end plate, an axial limiting flange is arranged on one side, close to the second end plate, of the first end plate of the unlocking button, one end of the first elastic reset piece abuts against the axial limiting flange, and the other end of the first elastic reset piece abuts against the second end plate.

6. The tailgate lock according to claim 1, wherein the pawl and unlocking assembly are disposed on opposite sides of the mouth relative to the ratchet.

7. The tailgate lock according to claim 1, further comprising:

and the pawl is provided with a second unlocking driving arm matched with the driving end of the electric actuator.

8. The rear door lock of claim 7, further comprising:

and the detection switch is arranged on the lock box and used for detecting the position information of the ratchet wheel.

9. The tailgate lock according to claim 1, wherein the lock body assembly further comprises a second resilient return member for driving the ratchet to automatically spring open after unlocking and a third resilient return member for driving the pawl to automatically engage the ratchet.

10. An automobile, characterized by comprising a tailgate lock according to any one of claims 1 to 9.

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