CN115653414B

CN115653414B - Unlocking device for automobile hood lock

Info

Publication number: CN115653414B
Application number: CN202211161193.XA
Authority: CN
Inventors: 杨警卫; 唐毅; 杨炳观; 罗植; 李庚袁; 韦荣
Original assignee: Dongfeng Liuzhou Motor Co Ltd
Current assignee: Dongfeng Liuzhou Motor Co Ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2024-04-12
Anticipated expiration: 2042-09-22
Also published as: CN115653414A

Abstract

The invention discloses an unlocking device for an automobile hood lock, which comprises a shell, a lock catch assembly, an unlocking assembly and a driving assembly, wherein the lock catch assembly comprises a lock hole, a lock rod, a first lock hook and a second lock hook, the lock hole is arranged on the inner wall surface of the shell and penetrates through the shell upwards, the lock rod is movably installed into the lock hole in an up-down direction and can extend out of the upper end of the lock hole, the lock rod is used for being connected with an automobile hood cover, the first lock hook is rotatably installed to the middle part of the inner wall of the shell along a longitudinally extending axis so as to limit the lock rod to the lower part of the lock hole, the second lock hook can move to shelter from or expose the upper end of the lock hole when being stressed, the unlocking assembly comprises a mounting seat and an unlocking handle, the unlocking handle is longitudinally movably installed to the mounting seat and is used for being exposed to an automobile cabin, the mounting seat is connected with the second lock hook, and the driving assembly is used for driving the first lock hook and/or the mounting seat to move.

Description

Unlocking device for automobile hood lock

Technical Field

The invention relates to the technical field of automobile hood locks, in particular to an unlocking device for an automobile hood lock.

Background

When car filling machine oil and car engine cabin overhauls, need open car cabin apron, current unblock structure is when using, generally the driver opens cabin apron zip fastener in the driver's cabin earlier, carries out the one-level unblock, and at this moment cabin apron one-level unblock opens certain space, and the driver gets off the car and need stretch into the inside of cabin apron with the gap of opening certainly then, because the handle is hidden in the cabin apron, so the driver probably can not directly see the handle, need fumbling the unblock in the blind area, the blind area operation is dirty by cabin apron easily to the operation convenience is poor, brings inconvenience for the user.

Disclosure of Invention

The invention mainly aims to provide an unlocking device for an automobile hood lock, and aims to solve the problem that operation blind areas exist for a multi-stage unlocking operator of a cabin cover at present.

In order to achieve the above object, the present invention provides an unlocking device for a hood lock of an automobile, comprising:

a housing;

the lock catch assembly comprises a lock hole, a lock rod, a first lock hook and a second lock hook, wherein the lock hole is formed in the inner wall surface of the shell and penetrates through the shell upwards, the lock rod is movably installed in the lock hole along the up-down direction and can extend out of the upper end of the lock hole, the lock rod is used for being connected with an automobile engine cover, the first lock hook is rotatably installed in the middle of the inner wall of the shell along a longitudinally extending axis so as to limit the lock rod to the lower part of the lock hole, the second lock hook is arranged in the shell, and the second lock hook can move to shield or expose the upper end of the lock hole when being stressed;

the unlocking assembly comprises a mounting seat and an unlocking handle, the unlocking handle is movably mounted to the mounting seat along the longitudinal direction and is used for being exposed to an automobile cabin, and the mounting seat is connected with the second lock hook; the method comprises the steps of,

the driving assembly is used for driving the first lock hook and/or the mounting seat to move.

Optionally, the mounting seat is in a cylindrical shape, so as to have a mounting channel penetrating longitudinally, and the unlocking handle extends into the mounting channel towards the end of the shell along the longitudinal direction;

the second latch hook comprises a main body part and a hooking part arranged at the upper end of the main body part, the lower end of the main body part is rotatably mounted to the outer wall of the shell along a longitudinally extending axis, the side part of the main body part is connected with the mounting seat, which is close to the outer side of the end part of the shell, and the hooking part is arranged corresponding to the upper end of the lock hole.

Optionally, the latch assembly further includes a reset torsion spring, the middle part of the reset torsion spring is sleeved on the rotating shaft at the lower end of the main body, and two ends of the reset torsion spring are respectively connected with the main body and the shell.

Optionally, the housing is provided with a through hole corresponding to the mounting channel;

the unlocking assembly further includes:

the clamping hook is movably arranged in the mounting channel, and the end part of the clamping hook, which faces the shell, can extend out of the mounting channel and is clamped with the inner wall of the shell through the through hole; the method comprises the steps of,

the compression spring is arranged in the installation channel, one end of the compression spring is connected with the unlocking handle, and the other end of the compression spring is connected with the clamping hook;

the driving component is used for driving the clamping hook to move so as to be separated from the shell.

Optionally, the mounting channel comprises three cavity sections which are sequentially arranged along the longitudinal direction, and the diameter of the cavity section positioned in the middle is smaller than that of the cavity sections positioned at two ends;

the compression spring is positioned in the cavity section positioned in the middle;

the unlocking handle and the clamping hooks are respectively and movably arranged in the two cavity sections at the two ends in a penetrating mode.

Optionally, the driving assembly includes:

the upper end of the pawl is rotatably arranged along a longitudinally extending axis, and the pawl is arranged on the periphery of the through hole; the method comprises the steps of,

the driving pull rod, one end of driving pull rod is used for extending to the automobile cab, the other end of driving pull rod is connected the lower extreme of pawl, the driving pull rod drives pawl swing when pulling to promote the pothook with the casing breaks away from.

Optionally, an end of the lower end of the pawl facing away from the driving pull rod is connected with the housing through a first return spring.

Optionally, a clamping groove is formed on one side of the first locking hook;

the driving assembly comprises a pawl, the upper end of the pawl is rotatably arranged along a longitudinally extending axis, and a clamping protrusion is arranged on the pawl corresponding to the clamping groove, so that the pawl is clamped with the clamping groove or separated from the clamping groove when the lower end of the pawl swings.

Optionally, one side of the first latch hook, which is away from the latch rod, is connected with the housing through a second return spring.

The invention also provides a vehicle, which comprises the unlocking device for the automobile hood lock, wherein the unlocking device for the automobile hood lock at least comprises:

a housing;

In the technical scheme of the invention, when the lock is locked, the lock rod is limited at the bottom of the lock hole by the first lock hook, at the moment, the second lock hook shields the upper end of the lock hole, when the lock is unlocked, the first lock hook is driven to rotate for one-stage unlocking, at the moment, the first lock hook rotates to avoid the lock rod, so that the lock rod can move upwards, at the moment, the automobile engine cover can be lifted a certain distance along with the lock rod to form an open gap, but still shielded by the second lock hook, the unlocking handle is driven to move linearly along the longitudinal direction, so that the unlocking handle can be exposed in an automobile cabin, namely a driver can see the unlocking handle from the gap, so that the unlocking handle can be directly held, the installation seat is directly or indirectly driven to move through applying force to the unlocking handle, so that the second lock hook is driven to move to expose the lock hole, at the moment, the lock rod can extend out of the lock hole completely, and the automobile engine cover can be opened completely. Therefore, the blind area of manual unlocking operation of the user is avoided, and the operation is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of an embodiment (angle) of an unlocking device for a hood lock of an automobile according to the present invention;

FIG. 2 is a perspective view of an embodiment (at another angle) of the hood lock release of the vehicle of FIG. 1;

fig. 3 is a schematic cross-sectional view of the unlocking assembly of fig. 2 taken along A-A.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Unlocking device for automobile hood lock	31	Mounting base
1	Shell body	311	Mounting channel
				11	Through hole	32	Hook
21	Lock hole	33	Compression spring
				22	Lock rod	34	Unlocking handle
23	First latch hook	41	Pawl for a bicycle
				231	Clamping groove	411	Clamping convex
24	Second latch hook	42	Driving pull rod
				241	Main body part	5	First return spring
242	Hook holding part	6	Second return spring
				25	Reset torsion spring

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the case where a directional instruction is involved in the embodiment of the present invention, the directional instruction is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional instruction is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

In view of the above, the invention provides an unlocking device for an automobile hood lock, which aims to solve the problem that the prior cabin cover multistage unlocking operators have operation blind areas. Fig. 1 to 3 are embodiments of an unlocking device for a hood lock of an automobile according to the present invention.

Referring to fig. 1 to 2, an unlocking device 100 for a hood lock of an automobile includes a housing 1, a latch assembly, an unlocking assembly and a driving assembly, wherein the latch assembly includes a latch hole 21, a latch rod 22, a first latch hook 23 and a second latch hook 24, the latch hole 21 is disposed on an inner wall surface of the housing 1 and penetrates through the housing 1 upwards, the latch rod 22 is movably mounted in the latch hole 21 along a vertical direction and can protrude from an upper end of the latch hole 21, the latch rod 22 is used for connecting a hood cover of the automobile, the first latch hook 23 is rotatably mounted in an inner wall middle portion of the housing 1 along a longitudinally extending axis so as to limit the latch rod 22 at a lower portion of the latch hole 21, the second latch hook 24 is disposed on the housing 1, the second latch hook 24 can move to or expose an upper end of the latch hole 21 when being stressed, the unlocking assembly includes a mounting seat 31 and an unlocking handle 34, the unlocking handle 34 is movably mounted in a vertical direction and is used for exposing in a cabin of the automobile, the mounting seat 31 is connected with the second latch hook assembly 24 and the driving assembly is used for mounting the first latch hook 23 and the driving assembly.

In the technical scheme of the invention, when the lock is locked, the lock rod 22 is limited at the bottom of the lock hole 21 by the first lock hook 23, at this time, the second lock hook 24 shields the upper end of the lock hole 21, and when the lock is unlocked, the first lock hook 23 is driven to rotate for one-stage unlocking, at this time, the first lock hook 23 rotates to avoid the lock rod 22, so that the lock rod 22 can move upwards, at this time, the automobile hood cover can be lifted a certain distance along with the lock rod 22 to form an open gap, but still is shielded by the second lock hook 24, the lock release handle 34 is driven to do linear motion along the longitudinal direction, so that the lock release handle 34 can be seen from the gap by a driver, thus the lock release handle 34 can be directly held, the mounting seat 31 is directly or indirectly driven to move to expose the lock hole 21, at this time, the automobile hood cover can be completely extended out of the lock hole 21, and the automobile hood cover can be completely opened for two-stage unlocking is completed. Therefore, the blind area of manual unlocking operation of the user is avoided, and the operation is convenient.

In an embodiment, when the operator touches the unlocking handle 34, the linkage structure drives the mounting seat 31 to move, so that the operator drives the second latch hook 24 to transmit the driving force in an indirect driving manner.

In another embodiment, referring to fig. 3, the mounting seat 31 is configured in a tubular shape, so as to have a mounting channel 311 extending therethrough in a longitudinal direction, the unlocking handle 34 movably extends into the mounting channel 311 in a longitudinal direction toward an end of the housing 1, the second locking hook 24 includes a main body portion 241 and a main body portion 242 disposed at an upper end of the main body portion 241, a lower end of the main body portion 241 is rotatably mounted to an outer wall of the housing 1 along an axis extending in the longitudinal direction, a side portion of the main body portion 241 is connected to an outer side of the end portion of the mounting seat 31 adjacent to the housing 1, and the main body portion 242 is disposed corresponding to the upper end of the locking hole 21. So set up, the one end of unblock handle 34 receives all the time the restriction of mounting channel 311, when the driver is to the unblock handle 34 is exerted force, this effort direct action is on the tube-shape mount pad 31, again because mount pad 31 with main part 241 connects as an organic wholely, consequently can be to the lateral part of main part 241 realizes the drive power, makes the lower extreme of main part 241 takes place to rotate, thereby drives main part 242 swing, the realization the opening of lockhole 21, this structure relies on manual unblock entirely, need not to add to establish drive structure or transmission structure as the transition, simple structure, convenient operation.

Based on the above embodiment, in order to perform the reset of the cabin cover of the automobile after the completion of the secondary unlocking by the manual unlocking by the operator, the latch assembly further comprises a reset torsion spring 25, the middle part of the reset torsion spring 25 is sleeved on the rotating shaft at the lower end of the main body portion 241, and two ends of the reset torsion spring 25 are respectively connected with the main body portion 241 and the housing 1. The end of the reset torsion spring 25 is bent in an L shape, so that the end of the reset torsion spring is matched with corresponding parts in a perforation matching mode. In other embodiments, the method may be implemented by using elastic sheets, elastic bands, etc., which are not described in detail herein.

Further, for easy holding, the end of the unlocking handle 34 facing away from the housing 1 is configured in an L-shaped structure, so that the operator can apply force.

It should be understood that, in the locked state, the unlocking handle 34 should be in a hidden position, and after the first-stage unlocking, the unlocking handle is exposed, and meanwhile, the second lock hook 24 should remain stationary during locking, so that the state of blocking the locking slot can be maintained, in this embodiment, referring again to fig. 3, the housing 1 is provided with a through hole 11 corresponding to the mounting channel 311, the unlocking assembly further includes a hook 32 and a compression spring 33, the hook 32 is movably mounted in the mounting channel 311, the end of the hook 32 facing the housing 1 can extend out of the mounting channel 311, and is clamped with the inner wall of the housing 1 through the through hole 11, the compression spring 33 is disposed in the mounting channel 311, one end of the compression spring 33 is connected with the unlocking handle 34, the other end is connected with the hook 32, and the driving assembly is used for driving the hook 32 to move so as to be separated from the housing 1. In this way, when the hook 32 is hung on the side of the through hole 11 to be clamped with the housing 1, the compression spring 33 drives the unlocking handle 34 to be kept in the mounting channel 311, and meanwhile, the mounting seat 31 is kept fixed with the housing 1 at the position of the hook 32 under the clamping fit, so that the second hook 32 integrally connected with the mounting seat 31 is kept fixed, the hook 32 is driven to be separated from the housing 1 by the driving component, at this time, the hook 32 is retracted into the mounting channel 311 by the spring, and meanwhile, the unlocking handle 34 is subjected to the reaction force to be capable of extending out of the mounting channel 311, thereby achieving the exposing effect. By means of the arrangement, the state of the two parts can be simultaneously displayed and fixed, a linkage locking structure is formed, and when the reset locking is needed, the compression spring 33 can be driven to push the clamping hook 32 to stretch out and be clamped and fixed only by pressing the unlocking handle 34.

Further, the mounting channel 311 includes three cavity sections sequentially arranged along a longitudinal direction, the diameter of the cavity section in the middle is smaller than that of the cavity sections at two ends, the compression spring 33 is positioned in the cavity section in the middle, and the unlocking handle 34 and the clamping hook 32 are respectively and movably arranged in the two cavity sections at two ends in a penetrating manner. Because the middle cavity section is different from the cavity sections at the two ends in size, a space with stop steps at the two ends is formed, the position of the compression spring 33 is limited, meanwhile, the size of the cavity sections at the two ends is reduced, good movable guide is provided for the clamping hooks 32 and the extending part of the decompression handle, and the influence of overlarge gaps on the reciprocating effect is avoided.

In order to realize the driving of the hook 32, in one embodiment, the driving assembly includes a pawl 41 and a driving pull rod, the upper end of the pawl 41 is rotatably mounted along a longitudinally extending axis, the pawl 41 is disposed on the periphery of the through hole 11, one end of the driving pull rod is used for extending to the cab of the automobile, the other end of the driving pull rod is connected with the lower end of the pawl 41, and the driving pull rod drives the pawl 41 to swing when pulled so as to push the hook 32 to be separated from the housing 1. When a driver is in a cab, the driver can drive the driving pull rod, so that the pawl 41 integrally rotates around the rotation axis of the driving pull rod, the pulling direction of the driving pull rod is set to be the direction of the middle part of the shell 1 towards the through hole 11, therefore, the pawl 41 can swing towards the direction of the through hole 11, and the side part of the pawl 41 gradually pushes the clamping hook 32 to be separated from the shell 1. Simple structure and convenient operation.

Further, the driving rod is engaged with the pawl 41 by engaging the spherical end with the recess of the pawl 41.

Further, the lower end of the pawl 41, which is directed away from the drive rod, is connected to the housing 1 by means of a first return spring 5. So that the driving force of the driving pull rod can be reset under the action of the resilience force of the first reset spring 5 after being removed.

In order to unlock and lock the first lock hook 23, in this embodiment, a clamping groove 231 is provided on one side of the first lock hook 23, the driving assembly includes a pawl 41, an upper end of the pawl 41 is rotatably mounted along a longitudinally extending axis, and the pawl 41 is provided with a clamping protrusion corresponding to the clamping groove 231, so as to be clamped with the clamping groove 231 or separated from the clamping groove 231 when a lower end of the pawl 41 swings. When locked, the locking bar 22 is located between the first locking hook 23 and the lower wall surface of the locking hole 21, the locking protrusion is in locking fit with the locking groove 231, and when unlocked, the pawl 41 is driven to swing, and the locking protrusion slides out of the locking groove 231, so that the restriction on the first locking hook 23 is released, and the locking bar can rotate to avoid the locking bar 22.

It will be appreciated that the structure of the first latch hook 23 and the automatic spring-out of the unlocking handle 34 can be simultaneously achieved when the pawl 41 swings.

Furthermore, the side of the first locking hook 23 facing away from the locking lever 22 is connected to the housing 1 by a second restoring spring 6. Under the natural state, the first latch hook 23 swings clockwise under the tensile force of the spring, the cooperation of the clamping protrusion and the clamping groove 231 limits the rotation of the first latch hook 23, and when the clamping protrusion and the clamping groove 231 are separated, the first latch hook 23 can be automatically opened under the action of the spring force, and the automatic unlocking can be realized.

The invention also provides a vehicle comprising the automobile hood lock unlocking device 100, and the vehicle comprises all the technical characteristics of the automobile hood lock unlocking device 100, so that the vehicle also has the technical effects brought by all the technical characteristics, and the technical effects are not repeated here.

Specifically, the unlocking process is as follows:

when a driver pulls up a zipper switch in a cab to trigger a driving pull rod of a hood, the pawl 41 is pulled to perform rotary motion, the pawl 41 is pushed to rotate to separate the clamping hook 32 from the clamping device, the unlocking handle 34 automatically stretches out and pops up under the action of spring force to finish primary unlocking, the unlocking handle 34 automatically stretches out while the cabin cover pops up, the driver gets off the vehicle, and the unlocking handle 34 is pushed by hands to directly drive the second locking hook 24 to move to open secondary unlocking, so that the problems that the handle is difficult to operate and fingers are dirty in the prior art are solved.

The unlocking handle 34 is kept in an initial state, and the cabin cover is closed.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. An automobile hood lock unlocking device, characterized by comprising:

a housing;

the driving assembly is used for driving the first latch hook to move;

the mounting seat is in a cylindrical shape and is provided with a mounting channel which is longitudinally penetrated, and the unlocking handle longitudinally movably stretches into the mounting channel towards the end part of the shell;

the second lock hook comprises a main body part and a hooking part arranged at the upper end of the main body part, the lower end of the main body part is rotatably mounted to the outer wall of the shell along a longitudinally extending axis, the side part of the main body part is connected with the mounting seat close to the outer side of the end part of the shell, and the hooking part is arranged corresponding to the upper end of the lock hole;

the shell is provided with a through hole corresponding to the installation channel;

the unlocking assembly further includes:

the driving component is used for driving the clamping hook to move so as to be separated from the shell;

the mounting channel comprises three cavity sections which are sequentially arranged along the longitudinal direction, and the diameter of the cavity section positioned in the middle is smaller than that of the cavity sections positioned at the two ends;

the unlocking handle and the clamping hook are respectively and movably arranged in the two cavity sections at the two ends in a penetrating way;

the drive assembly includes:

2. The vehicle hood lock unlocking device according to claim 1, wherein the latch assembly further comprises a return torsion spring, a middle portion of the return torsion spring is sleeved on a rotating shaft at the lower end of the main body portion, and two ends of the return torsion spring are respectively connected with the main body portion and the housing.

3. The vehicle hood lock unlocking device according to claim 1, wherein an end of the lower end of the pawl facing away from the drive lever is connected to the housing by a first return spring.

4. The automobile hood lock unlocking device according to claim 1, wherein a clamping groove is formed on one side of the first locking hook;

5. The vehicle hood lock unlocking device according to claim 1, wherein a side of the first lock hook facing away from the lock lever is connected to the housing by a second return spring.

6. A vehicle comprising the hood lock unlocking device according to any one of claims 1 to 5.