CN214740622U - Lock device and automobile - Google Patents

Abstract

The utility model relates to the technical field of automobile parts, and discloses a lock device and an automobile, wherein the lock device comprises a base plate, a guide plate and a pawl component, ratchet and actuating mechanism, the deflector sets up on the base plate, the pawl subassembly includes the pawl, return piece and riveting post, the riveting post rotationally sets up in the base plate, the pawl rotationally sets up in the riveting post, the ratchet rotates and sets up on the base plate, the ratchet includes the hasp complex locking groove with car hatch cover, the ratchet has the unlocking position in proper order in forward direction of rotation, half lock position and full lock position, actuating mechanism's output links to each other with the riveting post, actuating mechanism can drive the pawl and rotate, the ratchet rotates to half lock from the unlocking position, the pawl breaks away from the meshing with the deflector at half lock position this moment, the pawl rotates and couples with the ratchet around the riveting post, in order to drive the synchronous rotation of ratchet to full lock position, the locking groove is with hasp locking cooperation. The lockset device can be automatically locked, is simple and convenient to operate, saves physical strength and improves the experience of a user.

Description

Lock device and automobile

Technical Field

The utility model belongs to the technical field of automobile parts, especially, relate to a tool to lock device and car.

Background

The lock device for the automobile is a device which is arranged inside an engine compartment or a luggage compartment of the automobile and can reliably lock a hatch cover.

At present, a lock device generally has a two-stage locking function and needs to be unlocked through two operations. The first step is as follows: a first-stage lock of the lockset device is unlocked through a button in the cab, so that the lockset device rotates from a full-locking position to a half-locking position; the second step is that: the second stage lock is opened by the driver or operator manually reaching into the hatch compartment at the front end of the vehicle by releasing the handle. When the hatch cover needs to be closed, the hatch cover needs to be pressed or thrown with great force, and the safety locking is realized by means of the gravity and the pressure of the hatch cover.

The locking operation of the existing lock device needs to use large force, consumes large physical force of operators, is inconvenient to operate, and reduces the experience of users. Meanwhile, the hatch cover is locked for many times, so that the structural part of the lock device is easily damaged, and the service life of the lock device is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lock device to realize lock device's automatic locking, save user's physical power, improve lock device's life.

To achieve the purpose, the technical proposal adopted by the utility model is that:

a lockset device, comprising:

a substrate;

a guide plate disposed on the substrate;

the pawl assembly comprises a pawl, a return piece and a riveting column, the riveting column is rotatably arranged on the substrate, and the pawl is rotatably arranged on the riveting column through the return piece;

the ratchet wheel is rotationally arranged on the base plate and comprises a locking groove matched with a lock catch of the automobile cabin cover, the ratchet wheel sequentially has an unlocking position, a half-locking position and a full-locking position in the forward rotation direction, when the ratchet wheel is located at the unlocking position, the pawl is meshed with the guide plate, the lock catch is pressed against the locking groove, so that the ratchet wheel is supported on the riveting column,

the output end of the driving mechanism is connected with the riveting column and is configured to drive the pawl to rotate in the forward direction through the riveting column when being triggered, so that the ratchet wheel rotates in the forward direction from the unlocking position to the half-locking position; the pawl is disengaged from the guide plate at the half-locking position, rotates around the riveting column and is coupled with the ratchet wheel so as to drive the ratchet wheel to synchronously rotate to the full-locking position, and therefore the locking groove is in locking fit with the lock catch.

Furthermore, the lockset device also comprises a ratchet spring, one end of the ratchet spring is fixedly arranged on the base plate, and the other end of the ratchet spring is positioned below the riveting column and is abutted against the riveting column, so that the ratchet wheel has the tendency of reverse rotation.

Furthermore, the pawl component further comprises a rebound piece, the rebound piece comprises a connecting plate and a bearing plate which are connected, one end of the connecting plate is rotatably arranged on the base plate, the other end of the connecting plate is sleeved on the riveting column, and the bearing plate is used for bearing the ratchet wheel.

Furthermore, the lockset device also comprises a first switch arranged on the substrate, the ratchet wheel also comprises a pressing part, and the first switch is electrically connected with the driving mechanism; when the ratchet wheel is located at the unlocking position, the pressing part presses the first switch so as to close the driving mechanism; when the ratchet wheel leaves the unlocking position, the pressing part is separated from the first switch and presses the first switch to trigger the driving mechanism.

Further, the guide plate has a first outer edge, and the pawl has a flange that slidingly bears against the first outer edge when the ratchet is between the unlocked position and the half-locked position.

Furthermore, the guide plate is also provided with a second outer edge connected with the first outer edge, and the second outer edge is inwards recessed to form an avoiding groove for yielding the pawl.

Further, the pawl has joint portion, the ratchet has the spacing groove, works as the pawl winds when the riveting post rotates, joint portion with the spacing groove joint is connected.

Further, the pawl is provided with a hanging part, the return piece is sleeved on the riveting column, one end of the return piece is fixedly arranged on the riveting column, and the other end of the return piece is abutted against the hanging part, so that the pawl has a forward rotation trend.

Furthermore, the base plate is provided with a sliding groove, and the lock catch is slidably arranged in the sliding groove.

Another object of the utility model is to provide a car to realize the automatic locking of tool to lock device, save user's physical power, improve the life of tool to lock device.

To achieve the purpose, the technical proposal adopted by the utility model is that:

an automobile comprises the lockset device.

The utility model has the advantages that: when the ratchet wheel is in the unlocking position, the pawl is meshed with the guide plate, the driving mechanism drives the pawl to rotate to the half-locking position after being triggered, the ratchet wheel rotates forwards to the half-locking position, the pawl and the ratchet wheel are coupled together, the driving mechanism continues to drive the pawl and the ratchet wheel to synchronously rotate to the full-locking position, and locking matching of the ratchet wheel and the lock catch is achieved. The locking of the lockset device can be realized by triggering the driving mechanism, the operation is simple and convenient, the cabin cover does not need to be pressed or thrown vigorously, the physical strength of a user is saved, and the experience of the user is improved. Meanwhile, the damage to structural members of the lockset device is reduced, and the service life of the lockset device is prolonged.

Drawings

Fig. 1 is a schematic structural view of a lock device provided in an embodiment of the present invention;

FIG. 2 is an end view of the lock device with the ratchet spring removed according to the embodiment of the present invention in an unlocked position;

FIG. 3 is an end view of the locking device with the ratchet spring removed in a half-locked position according to an embodiment of the present invention;

FIG. 4 is an end view of the locking device with the ratchet spring removed in a fully locked position according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a base plate and a cable according to an embodiment of the present invention;

fig. 6 is a schematic structural view of the ratchet spring and the pawl assembly with the rivet post removed according to the embodiment of the present invention;

fig. 7 is a schematic structural view of the ratchet spring and the pawl assembly with the rivet post removed according to the embodiment of the present invention;

fig. 8 is an exploded view of the ratchet spring and pawl assembly provided by an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a guide plate according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a pawl according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a ratchet according to an embodiment of the present invention.

The component names and designations in the drawings are as follows:

10. locking; 1. a substrate; 11. a chute; 2. a guide plate; 21. a first outer edge; 22. a second outer edge; 3. a pawl; 31. a flange; 32. a clamping part; 33. a hanging part; 4. riveting columns; 5. a ratchet wheel; 51. hooking; 511. a locking groove; 52. a pressing part; 53. a limiting groove; 54. a connecting arm; 541. thickening the portion; 6. a resilient member; 61. a connecting plate; 62. a support plate; 7. a cable; 71. a collar; 8. a ratchet spring; 9. a return member.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The embodiment discloses an automobile which comprises an engine compartment, a luggage compartment, a compartment cover and a lock device, wherein the compartment cover is provided with a lock catch 10, the lock device is installed in the engine compartment or the luggage compartment, and the reliable locking of the compartment cover can be realized by locking the lock catch 10.

At present, when the hatch cover is closed, the hatch cover needs to be pressed or falls down with great force, and the safety locking is realized by the gravity and the pressure of the hatch cover. The locking operation of the existing lockset device needs to use larger force, and the operation is inconvenient. Simultaneously, cause the damage to the tool to lock device easily, reduced the life of tool to lock device.

For convenience of description, the forward direction in this embodiment is the direction indicated by the arrow in fig. 2-4 (i.e., clockwise direction), and the reverse direction is the opposite direction to the forward direction (i.e., counterclockwise direction).

To solve the above problem, as shown in fig. 1 to 4, the present embodiment also discloses a lock device, which includes a base plate 1, a guide plate 2, a pawl assembly, a driving mechanism, and a ratchet 5. The base plate 1 of the present embodiment is fixedly mounted on a front cross member of a transmission cabin or a luggage room. As shown in fig. 5, the base plate 1 is a sheet metal part, the base plate 1 is provided with a sliding slot 11, and the latch 10 is slidably disposed on the sliding slot 11. The chute 11 extends in the vertical direction and has an opening at the top end. The lock catch 10 is arranged in the sliding groove 11 in a penetrating way and can be matched with the locking groove 511 of the ratchet wheel 5 to realize the locking of the hatch cover.

Specifically, deflector 2 sets up on base plate 1, and the pawl subassembly includes pawl 3, return 9 and riveting post 4, and riveting post 4 rotationally sets up on base plate 1, and pawl 3 rotationally sets up in riveting post 4 through returning 9. The ratchet 5 is rotatably disposed on the substrate 1, the ratchet 5 includes a locking groove 511 engaged with the latch 10, and the ratchet 5 has an unlocking position, a half-locking position and a full-locking position in the forward rotation direction. When the ratchet wheel 5 is located at the unlocking position, the pawl 3 is meshed with the guide plate 2, and the lock catch 10 is pressed against the locking groove 511, so that the ratchet wheel 5 is supported on the riveting column 4.

The output end of the driving mechanism is connected with the riveting column 4, the driving mechanism can drive the pawl 3 to rotate in the forward direction through the riveting column 4 when being triggered, so that the riveting column 4 moves in the forward direction to a half-locking position, and the ratchet wheel 5 rotates from the unlocking position to the half-locking position by means of the gravity of the lock catch 1 and the hatch cover. The pawl 3 is disengaged from the guide plate 2 at the half-locking position, the pawl 3 rotates around the riveting column 4 and is coupled with the ratchet wheel 5 so as to drive the ratchet wheel 5 to synchronously rotate to the full-locking position, and therefore the locking groove 511 is in locking fit with the lock catch 10 to realize self-absorption locking of the hatch cover.

In this embodiment, when the driving mechanism is triggered to drive the rivet column 4 and the pawl to rotate from the unlocking position to the half-locking position, the ratchet 5 rotates forward to the half-locking position under the abutting pressure of the lock catch 10, the pawl 3 is disengaged from the guide plate 2, and the pawl 3 rotates forward around the rivet column 4 under the restoring force of the restoring member 9 and is coupled with the ratchet 5. The driving mechanism continues to drive the pawl 3 and the ratchet wheel 5 to synchronously move to the full locking position, and the locking matching of the ratchet wheel 5 and the lock catch 10 is realized.

In other alternative embodiments, the pawl 3 can also rotate in the reverse direction, as long as it is possible to couple the pawl 3 with the ratchet 5 in the half-locked position.

This tool to lock device can realize tool to lock device's automatic locking through triggering actuating mechanism, and is easy and simple to handle, need not to press vigorously or fall the cabin cover, has saved user's physical power, has improved user's experience and has felt. Meanwhile, the damage to structural members of the lockset device is reduced, and the service life of the lockset device is prolonged.

The driving mechanism of the embodiment comprises a motor (not shown in the figure) and a cable 7, wherein the output end of the motor is connected with the cable 7, the cable 7 is connected with the riveting column 4, and the motor pulls the cable 7 to contract so as to overcome the restoring force of the ratchet spring 8 and drive the pawl 3 to rotate in the positive direction.

As shown in fig. 1, the lock device further includes a ratchet spring 8, one end of the ratchet spring 8 is fixedly disposed on the substrate 1, and the other end of the ratchet spring 8 is located below the rivet column 4 and abuts against the rivet column 4, so that the ratchet 5 tends to rotate in a reverse direction.

The base plate 1 of this embodiment is fixedly provided with a mounting plate, the mounting plate is located above the guide plate 2, the ratchet spring 8 is sleeved on the mounting plate, and the ratchet spring 8 provides restoring force for the ratchet 5 through the rivet column 4 to drive the ratchet 5 to rotate reversely to an unlocking position. Specifically, the latch 10 presses the ratchet 5 under the action of the weight of the hatch, and the ratchet spring 8 supports the ratchet 5 together with the rivet 4 through the latch 10, so that the ratchet 5 is stably located at the unlocking position.

As shown in fig. 2 to 4, the guide plate 2 and the ratchet 5 are coaxially disposed on the base plate 1. When the ratchet wheel 5 rotates to the full-locking position from the unlocking position, the guide plate 2 is fixed relative to the base plate 1, the driving mechanism drives the pawl 3 to rotate forward relative to the base plate 1, and the pawl 3 is meshed with the guide plate 2, so that the guide plate 2 can limit the pawl 3 to prevent the pawl 3 from rotating forward around the riveting column 4.

As shown in fig. 6-8, the pawl 3 and the return element 9 are coaxially installed on the rivet column 4, the pawl 3 has a hanging portion 33, the return element 9 is sleeved on the rivet column 4, one end of the return element 9 is fixedly arranged with the rivet column 4 or the rebound element 6, and the other end of the return element 9 abuts against the hanging portion 33, so that the pawl 3 always has a forward rotation tendency.

The return element 9 of this embodiment may be a torsion spring, or may be an elastic element such as a coil spring, and only needs to be able to provide a restoring force of the forward rotation to the pawl 3.

As shown in fig. 8, the rivet column 4 has a stepped shaft structure, and specifically includes a first stepped shaft, a second stepped shaft, and a third stepped shaft, whose shaft diameters are gradually reduced and which are connected in sequence. The end fixed mounting of cable 7 has lantern ring 71, and lantern ring 71 cup joints on the second step shaft of riveting post 4, and the one end of ratchet spring 8 is located the below of first step shaft and supports and lean on first step shaft to make riveting post 4 can bear ratchet 5. The pawl 3 is sleeved on the second stepped shaft, and the return piece 9 is sleeved on the first stepped shaft.

As shown in fig. 6 to 8, the pawl assembly further includes a resilient member 6, the resilient member 6 includes a connecting plate 61 and a supporting plate 62 connected to each other, one end of the connecting plate 61 is rotatably disposed on the base plate 1, the other end of the connecting plate 61 is sleeved on the rivet post 4, and the supporting plate 62 is used for supporting the ratchet 5.

Specifically, the connecting plate 61 and the supporting plate 62 are integrally bent and formed, wherein the connecting plate 61 is in a gourd shape, one end of the connecting plate 61 is coaxially installed with the ratchet wheel 5 and the guide plate 2, and the other end of the connecting plate 61 is sleeved on the third stepped shaft of the rivet column 4, so that the pawl 3 can coaxially rotate with the ratchet wheel 5 under the driving of the driving mechanism. The support plate 62 is vertically connected with the connecting plate 61, and the support plate 62 can be attached to the outer edge of the ratchet wheel 5, so that the resilient member 6 can stably support the ratchet wheel 5.

As shown in fig. 9 and 10, the guide plate 2 has a first outer edge 21 and a second outer edge 22 connected to each other, and the second outer edge 22 is recessed inwardly to form an escape groove for relieving the pawl 3, so that the pawl 3 can rotate forward around the rivet 4 downward by the return member 9 after the pawl 3 reaches the half-lock position, thereby coupling the pawl 3 and the ratchet 5 together.

As shown in fig. 10, the pawl 3 comprises a first plate and a second plate angularly connected. The tip of first board extends perpendicularly has joint portion 32, and one side that the first board is close to deflector 2 has flange 31, and hitching part 33 sets up perpendicularly in the second board, and the one end of return member 9 is fixed to be set up in riveting post 4 or resilience piece 6, and the other end supports and presses in hitching part 33 to messenger's pawl 3 has the trend of forward rotation.

When the ratchet 5 is between the unlocked position and the half-locked position, the flange 31 slidingly bears against the first outer edge 21 to prevent the pawl 3 from rotating in the forward direction.

Specifically, the ratchet 5 has a limit groove 53, and when the pawl 3 rotates around the rivet post 4 in the forward direction, the clamping portion 32 is in clamping connection with the limit groove 53. After the pawl 3 reaches the half-locking position, because the guide plate 2 is provided with the avoiding groove, the pawl 3 is disengaged from the guide plate 2 and rotates in the forward direction, and the ratchet wheel 5 is stably coupled with the pawl 3 by clamping the clamping part 32 with the limiting groove 53.

The lock device further includes a first switch (not shown) disposed on the substrate 1, and the ratchet 5 further includes a pressing portion 52, wherein the first switch is electrically connected to the driving mechanism. When the ratchet 5 is located at the unlocking position, the pressing part 52 presses the first switch. When the ratchet 5 leaves the unlocking position, the pressing part 52 is disengaged from the first switch to trigger the driving mechanism.

As shown in fig. 11, the ratchet 5 has an irregular plate-like structure and is substantially triangular. The outer edge of the ratchet 5 has a pressing portion 52, a hook 51, a locking groove 511, and a stopper groove 53 in this order in the circumferential direction. The pressing portion 52 protrudes from the outer edge of the ratchet 5 so as to press the first switch. The outer edge of the ratchet wheel 5 is recessed inwards to form a locking groove 511, the locking groove 511 separates part of the ratchet wheel 5 to form a hook 51 and a connecting arm 54, and the part of the outer edge below the connecting arm 54 is recessed inwards to form a limiting groove 53 matched with the clamping portion 32 of the pawl 3, so that the ratchet wheel 5 and the pawl 3 are coupled and connected conveniently.

It should be noted that a second switch (not shown) is also mounted on the base plate 1, and when triggered, it can feed back a signal to the vehicle control unit, which indicates to the driver or user that the hatch is fully locked. When the ratchet wheel 5 rotates to the full locking position, the second switch is triggered, and the automobile control unit controls the motor to be closed, so that the lockset device keeps a locking state.

The working process of the lockset device of the embodiment comprises a locking process and an unlocking process, and for the convenience of understanding, the specific locking process of the lockset device is as follows:

when the car hatch is opened, as shown in fig. 1 and fig. 2, the ratchet 5 and the pawl 3 are both in the unlocking position, and the pressing portion 52 of the ratchet 5 presses against the first switch, so that the motor of the driving mechanism is in the closed state. The rivet column 4 bears the connecting arm 54 of the ratchet wheel 5 through the resilient member 6 under the action of the restoring force of the ratchet spring 8, and the lock catch 10 is located at the notch position of the locking groove 511 and is pressed against the upper side of the connecting arm 54.

The motor is started or slightly pressed on the automobile cabin cover through the automobile control unit, so that the ratchet wheel 5 rotates forwards under the action of the abutting pressure of the lock catch 10, the abutting part 52 is disengaged from the abutting pressure of the first switch, the motor of the driving mechanism is triggered, the rivet column 4 is pulled by the motor through the inhaul cable 7, the pawl 3 rotates forwards relative to the base plate 1, the rebound part 6 is disengaged from the connecting arm 54, the flange 31 of the pawl 3 is meshed with the first outer edge 21 of the guide plate 2, and the ratchet wheel 5 rotates forwards to a half-lock position under the abutting pressure of the lock catch 10.

As shown in fig. 3, after the pawl 3 and the ratchet 5 reach the half-lock position, since the second outer edge 22 of the guide plate 2 has the avoiding groove, the pawl 3 is disengaged from the guide plate 2 and rotates forward around the rivet stud 4, and the engaging portion 32 of the pawl 3 is engaged with the limiting groove 53 of the ratchet 5, so that the ratchet 5 and the pawl 3 are coupled. At this time, the driving mechanism continues to drive the pawl 3 to rotate in the forward direction, and the ratchet wheel 5 is driven by the pawl 3 to rotate to the full locking position. Meanwhile, the lock catch 10 slides into the locking groove 511, so that the lock catch 10 is in locking fit with the locking groove 511 of the ratchet 5, and the lock catch 10 drives the cabin cover to cover the engine cabin or the luggage cabin, thereby completing the automatic locking of the lock device.

It should be noted that, when the ratchet 5 reaches the full-lock position, the second switch feeds back a signal to the vehicle control unit, and the signal reminds the driver or the user that the cabin cover is fully locked. At this point, the motor of the drive mechanism is turned off and the lock device remains closed.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A lock device, comprising:

a substrate (1);

a guide plate (2), the guide plate (2) being disposed on the base plate (1);

the pawl assembly comprises a pawl (3), a return piece (9) and a riveting column (4), the riveting column (4) is rotatably arranged on the substrate (1), and the pawl (3) is rotatably arranged on the riveting column (4) through the return piece (9);

the ratchet wheel (5) is rotationally arranged on the base plate (1), the ratchet wheel (5) comprises a locking groove (511) matched with a lock catch (10) of the automobile cabin cover, the ratchet wheel (5) sequentially has an unlocking position, a half-locking position and a full-locking position in the forward rotation direction, when the ratchet wheel (5) is located at the unlocking position, the pawl (3) is meshed with the guide plate (2), the lock catch (10) is pressed against the locking groove (511), so that the ratchet wheel (5) is supported on the riveting column (4),

the output end of the driving mechanism is connected with the riveting column (4) and is configured to drive the pawl (3) to rotate in the forward direction through the riveting column (4) when being triggered, so that the ratchet wheel (5) rotates in the forward direction from the unlocking position to the half-locking position; the pawl (3) is disengaged from the guide plate (2) at the half-locking position, the pawl (3) rotates around the riveting column (4) and is coupled with the ratchet wheel (5) so as to drive the ratchet wheel (5) to synchronously rotate to the full-locking position, and therefore the locking groove (511) is in locking fit with the lock catch (10).

2. The lock device according to claim 1, characterized in that the lock device further comprises a ratchet spring (8), one end of the ratchet spring (8) is fixedly arranged on the base plate (1), and the other end of the ratchet spring (8) is positioned below the rivet (4) and abuts against the rivet (4) so that the ratchet (5) has a tendency to rotate in the opposite direction.

3. The lock device according to claim 2, wherein the pawl assembly further comprises a resilient member (6), the resilient member (6) comprises a connecting plate (61) and a supporting plate (62), the connecting plate (61) is rotatably disposed on the base plate (1) at one end, the riveting column (4) is sleeved with the other end of the connecting plate (61), and the supporting plate (62) is used for supporting the ratchet wheel (5).

4. The lock device according to claim 1, further comprising a first switch disposed on the base plate (1), wherein the ratchet (5) further comprises a pressing portion (52), and wherein the first switch is electrically connected to the driving mechanism; when the ratchet wheel (5) is located at the unlocking position, the pressing part (52) presses the first switch so as to close the driving mechanism; when the ratchet wheel (5) leaves the unlocking position, the pressing part (52) is separated from the first switch in a pressing mode, and the driving mechanism is triggered.

5. The locking device according to claim 1, characterized in that said guide plate (2) has a first outer edge (21) and said pawl (3) has a flange (31), said flange (31) being slidingly pressed against said first outer edge (21) when said ratchet (5) is between said unlocked position and said half-locked position.

6. The locking device according to claim 5, characterized in that the guide plate (2) further has a second outer edge (22) connected to the first outer edge (21), the second outer edge (22) being recessed inwards to form an escape groove for giving way to the pawl (3).

7. The lock device according to claim 1, characterized in that the pawl (3) has a catch portion (32), the ratchet wheel (5) has a limiting groove (53), and the catch portion (32) is in catch connection with the limiting groove (53) when the pawl (3) rotates around the rivet post (4).

8. The lockset device of claim 7 wherein the pawl (3) has a hook portion (33), the return member (9) is sleeved on the rivet column (4), one end of the return member (9) is fixedly disposed on the rivet column (4), and the other end of the return member (9) abuts against the hook portion (33) so that the pawl (3) has a tendency of rotating in a forward direction.

9. The locking device according to claim 1, characterized in that the base plate (1) is provided with a sliding groove (11), and the lock catch (10) is slidably arranged in the sliding groove (11).

10. A motor vehicle, characterized in that it comprises a lock device according to any one of claims 1-9.

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