CN113898259A

CN113898259A - Cabin cover lock assembly for vehicle and vehicle

Info

Publication number: CN113898259A
Application number: CN202111026486.2A
Authority: CN
Inventors: 刘卫红; 曹爱君
Original assignee: Beijing Electric Vehicle Co Ltd
Current assignee: Beijing Electric Vehicle Co Ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-01-07

Abstract

The application discloses a cabin cover lock subassembly and vehicle for vehicle, the cabin cover subassembly includes: the mounting seat is internally provided with a rotatable self-locking ring, the inner circumferential surface of the self-locking ring is provided with a plurality of spaced first matching parts, the lower end of each first matching part is provided with a locking groove, and two adjacent first matching parts define an unlocking groove; a lock cylinder connected to a cabin cover of the vehicle, the lock cylinder penetrating through the self-locking ring and being slidable relative to the self-locking ring, an upper end of the lock cylinder being provided with a plurality of spaced second engaging portions, and a lower end of the lock cylinder being provided with a plurality of spaced third engaging portions. According to the engine room cover lock assembly unlocking method, the engine room cover is not required to be bounced in advance during unlocking, the unlocking is not required to be carried out in a gap between the engine room cover and an automobile body through hand buckling, the engine room cover can be opened only by pressing and loosening the engine room cover, the efficiency is improved, the operation is convenient and pleasant, and meanwhile, the engine room cover lock assembly is small in size and easy to install.

Description

Cabin cover lock assembly for vehicle and vehicle

Technical Field

The present application relates to the field of vehicle technology, and in particular, to a hood lock assembly for a vehicle and a vehicle.

Background

The lock device for the front engine room cover of the passenger automobile is a locking and opening device for the front engine room cover and has the functions as follows: on one hand, the front cabin cover can be reliably locked during driving, and driving safety guarantee is provided for a driver; on the other hand, the cabin cover can be conveniently opened when the vehicle is parked, and inspection, maintenance or goods taking and placing of related devices in the front cabin are facilitated.

The existing front engine room cover lock structure is composed of a clamping plate, a pawl and a spring structure, and the unlocking of the front engine room cover is controlled by selecting a proper spring K value and a proper stiffness coefficient to achieve the required bounce height. With the increase of the use time and the use times, the performance of the spring is reduced, and the risk of loosening the safety hook exists. In addition, a safety hook driving lever for second grade unblock is located the crossbeam of preceding cabin cover below usually, and the operator must stretch into the hand and can pull it to the narrow and small space side that has opened the 15 ~ 20mm clearance, and this position is not convenient for the naked eye to observe, and the space is narrow and small, inconvenient operation. Moreover, the safety hook deflector rod is exposed in the atmosphere for a long time, a certain amount of dust, oil stains and the like are inevitably accumulated on the surface layer and adjacent parts of the safety hook deflector rod, and the fingers of an operator are inevitably prevented from being polluted when the deflector rod is pulled, so that the complaint of customers is caused.

Disclosure of Invention

The present application is directed to solving at least one of the problems in the prior art. Therefore, an object of the present application is to provide a cabin cover lock assembly for a vehicle, which does not need to bounce a cabin cover in advance when unlocking the cabin cover lock assembly, does not need to be buckled in a gap between the cabin cover and a vehicle body for unlocking, can realize the opening of the cabin cover only by pressing and loosening the cabin cover, improves efficiency, is convenient and pleasant to operate, and is small in size and easy to install.

The application also provides a vehicle with the cabin cover lock assembly.

A bonnet lock assembly for a vehicle according to the present application comprises: the mounting seat is internally provided with a rotatable self-locking ring, the inner circumferential surface of the self-locking ring is provided with a plurality of spaced first matching parts, the lower end of each first matching part is provided with a locking groove, and two adjacent first matching parts define an unlocking groove; a lock cylinder connected to a cabin cover of the vehicle, the lock cylinder penetrating through the self-locking ring and being slidable relative to the self-locking ring, an upper end of the lock cylinder being provided with a plurality of spaced second engaging portions, and a lower end of the lock cylinder being provided with a plurality of spaced third engaging portions; the lock cylinder is provided with a locking position and an unlocking position, and after the lock cylinder moves downwards from the locking position and the third matching part is withdrawn from the locking groove, the second matching part is matched with the corresponding first matching part to drive the self-locking ring to rotate until the third matching part is opposite to the corresponding unlocking groove; after the lock cylinder moves downwards from the unlocking position and the third matching part passes through the corresponding unlocking groove, the second matching part is matched with the corresponding first matching part to drive the self-locking ring to rotate until the third matching part is opposite to the corresponding locking groove.

According to the engine room cover lock assembly for the vehicle, the engine room cover does not need to be bounced in advance during unlocking, the unlocking is not needed to be carried out in a gap between the engine room cover and the vehicle body through hand buckling, the engine room cover can be opened only by pressing and loosening the engine room cover, the efficiency is improved, the operation is convenient and pleasant, and meanwhile, the engine room cover lock assembly is small in size and easy to install.

According to an embodiment of the present application, an upper end of the first fitting portion is provided with a first inclined surface, and a lower end of the second fitting portion is provided with a second inclined surface, and the first inclined surface is engaged with the corresponding second inclined surface to drive the self-locking ring to rotate when the lock cylinder slides downward.

According to an embodiment of the present application, after the lock cylinder moves downward from the locking position until the third mating portion is opposite to the corresponding unlocking slot, the lock cylinder is adapted to move upward from below so that the third mating portion slides into the corresponding unlocking slot.

According to an embodiment of the present application, when the third engaging portion is circumferentially staggered from the corresponding unlocking groove, the third engaging portion engages with the corresponding first engaging portion to drive the self-locking ring to rotate when the lock cylinder slides upward until the third engaging portion slides into the corresponding unlocking groove.

According to an embodiment of the present application, the upper end of the third mating portion is provided with a third inclined surface, and the lower end of the first mating portion is provided with a fourth inclined surface, and the third inclined surface is matched with the corresponding fourth inclined surface to drive the self-locking ring to rotate when the lock cylinder slides upwards.

According to an embodiment of the application, the lock cylinder is located at an unlocking position, the third matching parts are opposite to the corresponding first matching parts, and when the lock cylinder moves downwards from the unlocking position, the third matching parts are matched with the corresponding first matching parts to drive the self-locking ring to rotate until the third matching parts are opposite to the corresponding unlocking grooves.

According to an embodiment of the present application, a lower end of the third mating portion is provided with a fifth inclined surface, and the fifth inclined surface is mated with the corresponding first inclined surface to drive the self-locking ring to rotate when the lock cylinder slides downwards.

According to an embodiment of the present application, after the third engaging portion is disengaged from the corresponding unlocking groove, the first inclined surface engages with the corresponding second inclined surface to drive the self-locking ring to rotate until the third engaging portion is opposite to the corresponding locking groove when the lock cylinder continues to move downward.

According to an embodiment of the application, the lower end of the first matching portion is further provided with a sixth inclined surface, and when the third matching portion is circumferentially staggered with the corresponding locking groove, the sixth inclined surface is matched with the corresponding third inclined surface so as to drive the self-locking ring to rotate until the upper end of the third matching portion enters the corresponding locking groove when the lock cylinder moves upwards.

The vehicle according to the application comprises the engine room cover lock assembly, and the vehicle is provided with the engine room cover lock assembly according to the application, so that the engine room cover of the vehicle does not need to be bounced in advance when unlocked, a gap between the engine room cover and a vehicle body does not need to be buckled by hands for unlocking, the engine room cover can be opened only by pressing and loosening the engine room cover, the efficiency is improved, the operation is convenient and pleasant, and meanwhile, the engine room cover lock assembly is small in size and easy to install.

Additional aspects and advantages of the present application 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 present application.

Drawings

The above and/or additional aspects and advantages of the present application 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 illustration of an unlocking process of a bonnet lock assembly (third mating portion disengaged into an unlocking slot) according to an embodiment of the present application;

FIG. 2 is a schematic illustration of an unlocking process (first ramp mated with second ramp) of a nacelle cover lock assembly according to an embodiment of the present application;

FIG. 3 is a schematic illustration of an unlocking process of the nacelle cover lock assembly (third ramp surface mated with fourth ramp surface) according to an embodiment of the present application;

FIG. 4 is a schematic illustration of an unlocking process of the bonnet lock assembly (with the third mating portion facing the unlocking slot) according to an embodiment of the present application;

FIG. 5 is a schematic illustration of an unlocking process of the bonnet lock assembly (with the third mating portion about to enter the unlocking slot) according to an embodiment of the present application;

FIG. 6 is a schematic illustration of an unlocking process of the bonnet lock assembly (entry of the third mating portion into the unlocking slot) according to an embodiment of the present application;

FIG. 7 is a schematic illustration of a locking process (fifth ramp mated with first ramp) of the nacelle cover lock assembly according to an embodiment of the present application;

FIG. 8 is a schematic illustration of the locking process (entry of the third mating portion into the unlocking slot) of the nacelle cover lock assembly according to an embodiment of the present application;

FIG. 9 is a schematic illustration of a locking process (disengagement of the third mating portion into the unlocking slot) of the nacelle cover lock assembly according to an embodiment of the present application;

FIG. 10 is a schematic illustration of a locking process of the nacelle cover lock assembly (entry of the third mating portion into the locking slot) according to an embodiment of the present application;

fig. 11 is a schematic illustration of the locking process (the bolt engaging the annular groove) of the bonnet lock assembly according to an embodiment of the present application.

Reference numerals: the nacelle cover lock assembly 100, the mounting seat 110, the lock cylinder 130, the second mating portion 131, the second inclined surface 104, the third mating portion 133, the third inclined surface 105, the fifth inclined surface 107, the self-locking ring 150, the first mating portion 151, the first inclined surface 103, the fourth inclined surface 106 (entering the unlocking groove), the sixth inclined surface 108 (entering the locking groove), the first protrusion 151a, the second protrusion 151b, the third protrusion 151c, the locking groove 101, the unlocking groove 102, the annular groove 109, the elastic member 160, and the lock tongue 170.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

A bonnet lock assembly 100 for a vehicle according to an embodiment of the present application is described below with reference to fig. 1-11.

The bonnet lock assembly 100 according to the present application may include a mounting seat 110 and a lock cylinder 130, the mounting seat 110 may be disposed in a bonnet and fixedly connected to a vehicle body, the lock cylinder 130 is connected to a bonnet of a vehicle and may move along with movement of the bonnet, and the lock cylinder 130 may extend into or separate from the mounting seat 110.

A rotatable self-locking ring 150 is provided in the mounting seat 110, the self-locking ring 150 can only rotate relative to the mounting seat 110 but cannot move along the axis of the self-locking ring 150, the mounting seat 110 may be configured as a cylindrical structure, and an annular groove may be provided on the inner circumferential wall of the cylindrical structure, the self-locking ring 150 may be embedded in the annular groove, and the self-locking ring 150 may rotate in the annular groove, but both ends of the self-locking ring 150 in the axial direction are respectively stopped by both end surfaces of the annular groove, so that the self-locking ring 150 cannot move in the axial direction of the mounting seat 110.

The inner circumferential surface of the self-locking ring 150 is provided with a plurality of first fitting portions 151 spaced apart in the circumferential direction of the self-locking ring 150, a lower end of each first fitting portion 151 is provided with a locking groove 101, and an unlocking groove 102 is defined between adjacent two first fitting portions 151.

The lock cylinder 130 passes through the self-locking ring 150 and is slidable relative to the self-locking ring 150, that is, the lock cylinder 130 may pass through the self-locking ring 150 when a certain condition is satisfied, thereby sliding downward or upward relative to the self-locking ring 150. The upper end of the lock cylinder 130 is provided with a plurality of second engagement portions 131 spaced apart in the circumferential direction of the lock cylinder 130, and the lower end of the lock cylinder 130 is provided with a plurality of third engagement portions 133 spaced apart in the circumferential direction of the lock cylinder 130.

The lock cylinder 130 has a locking position and an unlocking position, when the lock cylinder 130 is at the locking position, the upper end of the third fitting part 133 is fitted with the locking groove 101, when the lock cylinder 130 is at the unlocking position, the lock cylinder 130 is not limited to freely slide in the up-down direction, specifically, the upper end of the third fitting part 133 is disengaged from the locking groove 101, the third fitting part 133 can enter the unlocking groove 102 or the third fitting part 133 passes through the unlocking groove 102 and is located in the upper space of the unlocking groove 102.

During the unlocking process of the lock cylinder 130, the lock cylinder 130 moves downwards from the locking position, the third matching part 133 withdraws from the locking groove 101, at this time, the second matching part 131 at the upper end of the lock cylinder 130 just contacts with the corresponding first matching part 151 and is matched with the first matching part 151, when the lock cylinder 130 continues to move downwards, as the second matching part 131 is matched with the corresponding first matching part 151, the lock cylinder 130 can drive the self-locking ring 150 to rotate until the third matching part 133 is opposite to the corresponding unlocking groove 102, at this time, the third matching part 133 on the lock cylinder 130 can slide upwards along the corresponding unlocking groove 102 under the driving of the elastic member by pulling the lock cylinder 130 or the lock cylinder 130 upwards, so that the lock cylinder 130 is disengaged from the self-locking ring 150, and after the other locking mechanisms of the machine cabin cover are unlocked, the machine cabin cover can be opened.

During the locking process of the lock cylinder 130, the lock cylinder 130 moves downward from the unlocking position, at this time, if the third matching part 133 on the lock cylinder 130 is opposite to the corresponding unlocking slot 102, the third matching part 133 can directly enter the corresponding unlocking slot 102, and if the third matching part 133 is not opposite to the corresponding unlocking slot 102, the third matching part 133 can be matched with the first matching part 151 so as to drive the self-locking ring 150 to rotate until the third matching part 133 is opposite to the corresponding unlocking slot 102 during the downward movement of the lock cylinder 130; then, the lock cylinder 130 continues to move downward and pass through the corresponding unlocking slot 102, the second matching portion 131 just matches with the corresponding first matching portion 151, at this time, if the lock cylinder 130 continues to be pushed to move downward, the lock cylinder 130 will drive the self-locking ring 150 to rotate until the third matching portion 133 is opposite to the corresponding locking slot 101, at this time, the lock cylinder 130 is pulled upward or the lock cylinder 130 is driven by the elastic member to move upward, the upper end of the third matching portion 133 matches with the locking slot 101, so as to complete locking of the lock cylinder 130.

According to the engine room cover lock assembly 100 for the vehicle, the engine room cover does not need to be bounced in advance during unlocking, the gap between the engine room cover and the vehicle body does not need to be buckled by hands for unlocking, the engine room cover can be opened only by pressing and loosening the engine room cover, the efficiency is improved, the operation is convenient and pleasant, and meanwhile, the volume is small, and the installation is easy.

According to an embodiment of the present application, as shown in fig. 1, the upper end of the first matching portion 151 is provided with a first inclined surface 103, the lower end of the second matching portion 131 is provided with a second inclined surface 104, the first inclined surface 103 is matched with the corresponding second inclined surface 104 to drive the self-locking ring 150 to rotate when the lock cylinder 130 slides downwards, obviously, the inclined directions of the first inclined surface 103 and the second inclined surface 104 are the same, and it is ensured that the lock cylinder 130 can drive the self-locking ring 150 to rotate in the circumferential direction during the axial movement.

Further, as shown in fig. 2-6, after the lock cylinder 130 is moved downward from the locking position until the third mating portion 133 is opposite to the corresponding unlocking slot 102, the lock cylinder 130 is adapted to be moved upward from below to slide the third mating portion 133 into the corresponding unlocking slot 102. The cabin cover may be pulled by a hand to drive the lock cylinder 130 to slide upwards, or an elastic member may be disposed between the lock cylinder 130 and the mounting base 110 to drive the lock cylinder 130 to slide upwards.

Further, while the third mating portions 133 are circumferentially staggered from the corresponding unlocking slots 102, the third mating portions 133 mate with the corresponding first mating portions 151 to drive the rotation of the self-locking ring 150 as the lock cylinder 130 slides upward until the mating portions slide into the corresponding unlocking slots 102.

Specifically, as shown in fig. 5, the upper end of the third matching portion 133 is provided with a third inclined surface 105, the lower end of the first matching portion 151 is provided with a fourth inclined surface 106, the inclined direction of the third inclined surface 105 is the same as the inclined direction of the fourth inclined surface 106, and the third inclined surface 105 is matched with the corresponding fourth inclined surface 106 to drive the self-locking ring 150 to rotate when the lock cylinder 130 slides upwards, so that the third matching portion 133 slides into the corresponding unlocking groove 102. Thus, even if the third engagement portion 133 is slightly displaced from the corresponding unlocking groove 102, the driving self-locking ring 150 can be rotated by the wedge mechanism, and the third engagement portion 133 can be aligned with the corresponding unlocking groove 102.

In some embodiments of the present application, as shown in fig. 7, the lock cylinder 130 is in the unlocking position and the third matching portion 133 is opposite to the corresponding first matching portion 151, when the lock cylinder 130 moves downward from the unlocking position, the third matching portion 133 is matched with the corresponding first matching portion 151 to drive the self-locking ring 150 to rotate until the third matching portion 133 is opposite to the corresponding unlocking slot 102.

Further, as shown in fig. 7, the lower end of the third fitting portion 133 is provided with a fifth inclined surface 107, and the fifth inclined surface 107 is fitted with the corresponding first inclined surface 103 to drive the rotation of the self-locking ring 150 when the lock cylinder 130 moves downward. Therefore, even if the third matching part 133 is not aligned with the corresponding unlocking groove 102, the self-locking ring 150 can be driven to rotate during the downward sliding process of the lock cylinder 130 under the action of the matching of the fifth inclined surface 107 and the first inclined surface 103, so that the third matching part 133 is aligned with the corresponding unlocking groove 102 to prepare for the sliding of the third matching part 133 into the corresponding unlocking groove 102.

Further, after the third engaging portion 133 slides into the corresponding unlocking slot 102, the locking column 130 may continue to slide downward, and after the third engaging portion 133 is disengaged from the corresponding unlocking slot 102, the second inclined surface 104 at the lower end of the second engaging portion 131 engages with the first inclined surface 103 at the upper end of the corresponding first engaging portion 151, so as to drive the self-locking ring 150 to rotate until the third engaging portion 133 is opposite to the corresponding locking slot 101 when the locking column 130 continues to move downward. At this time, the lock cylinder 130 is pulled upward or the lock cylinder 130 slides upward under the elastic force of the elastic member so that the upper end of the third engagement portion 133 engages with the corresponding locking groove 101 to achieve locking.

In some embodiments of the present application, as shown in fig. 9, the lower end of the first mating portion 151 is further provided with a sixth inclined surface 108, and when the third mating portion 133 is circumferentially staggered with the corresponding locking groove 101, the sixth inclined surface 108 is mated with the corresponding third inclined surface 105 to drive the self-locking ring 150 to rotate until the upper end of the third mating portion 133 enters the corresponding locking groove 101 when the lock cylinder 130 moves upward.

In some embodiments of the present application, the fourth ramp 106 is parallel to and spaced apart from the sixth ramp 108, and the locking groove 101 is disposed between the fourth ramp 106 and the sixth ramp 108.

Specifically, the first fitting portion 151 includes: a first boss 151a, a second boss 151b, and a third boss 151c adjacent in the circumferential direction of the self-locking ring 150, an upper end surface of the first boss 151a, an upper end surface of the second boss 151b, and an upper end surface of the third boss 151c being the same plane and defining a first slope 103; the lower end surface of the first protrusion 151a and the lower end surface of the second protrusion 151b are coplanar and define a sixth slope 108, and the lower end surface of the third protrusion 151c defines a fourth slope 106. The first slope 103 is inclined in the opposite direction to the fifth slope 107 or the sixth slope 108.

In some embodiments of the present application, the ratio of the number of the second fitting parts 131 to the number of the third fitting parts 133 is 2: 1. thereby, it is ensured that the second fitting portion 131 can be fitted with the first fitting portion 151 both during unlocking and during locking to ensure completion of unlocking and locking.

According to an embodiment of the present application, as shown in fig. 1 to 11, an elastic member 160 is further disposed between the lock cylinder 130 and the mounting seat 110, and the elastic member 160 is adapted to drive the lock cylinder 130 to move from bottom to top when the lock cylinder 130 is not subjected to an external force. Therefore, the elastic member 160 can drive the lock cylinder 130 to move upwards for a certain distance, so that the cabin cover is bounced, and a user can conveniently open the cabin cover.

In some embodiments of the present application, the nacelle cover lock assembly 100 further comprises: a latch bolt 170 slidably disposed on the body of the vehicle and an annular groove 109 disposed on the lock cylinder 130. The locking tongue 170 and the annular groove 109 may serve as a first-stage locking mechanism, and the locking cylinder 130 and the mounting seat 110 may serve as a second-stage locking mechanism, so that the locking cylinder 130 and the mounting seat 110 may be unlocked only when the locking tongue 170 is disengaged from the annular groove 109.

The vehicle of the embodiment of the present application is briefly described below.

According to the embodiment of the application, the vehicle comprises the cabin cover lock assembly 100, and the vehicle is provided with the cabin cover lock assembly 100, so that the cabin cover of the vehicle does not need to be bounced in advance when unlocked, the cabin cover does not need to be buckled in a gap between the cabin cover and a vehicle body for unlocking, the cabin cover can be opened only by pressing and loosening the cabin cover, the efficiency is improved, the operation is convenient and pleasant, and meanwhile, the vehicle is small in size and easy to install.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means 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 application. 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.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A bonnet lock assembly (100) for a vehicle, comprising:

the mounting seat (110) is internally provided with a rotatable self-locking ring (150), the inner circumferential surface of the self-locking ring (150) is provided with a plurality of spaced first matching parts (151), the lower end of each first matching part (151) is provided with a locking groove (101), and two adjacent first matching parts (151) define an unlocking groove (102);

a lock cylinder (130), wherein the lock cylinder (130) is connected with a cabin cover of the vehicle, the lock cylinder (130) penetrates through the self-locking ring (150) and can slide relative to the self-locking ring (150), the upper end of the lock cylinder (130) is provided with a plurality of spaced second matching parts (131), and the lower end of the lock cylinder (130) is provided with a plurality of spaced third matching parts (133); wherein

The lock cylinder (130) is provided with a locking position and an unlocking position, after the lock cylinder (130) moves downwards from the locking position and the third matching part (133) is withdrawn from the locking groove (101), the second matching part (131) is matched with the corresponding first matching part (151) to drive the self-locking ring (150) to rotate until the third matching part (133) is opposite to the corresponding unlocking groove (102); after the lock cylinder (130) moves downwards from an unlocking position and the third matching part (133) passes through the corresponding unlocking groove (102), the second matching part (131) is matched with the corresponding first matching part (151) to drive the self-locking ring (150) to rotate until the third matching part (133) is opposite to the corresponding locking groove (101).

2. The hood lock assembly (100) for a vehicle according to claim 1, wherein an upper end of the first fitting portion (151) is provided with a first inclined surface (103), and a lower end of the second fitting portion (131) is provided with a second inclined surface (104), and the first inclined surface (103) is engaged with the corresponding second inclined surface (104) to drive the self-locking ring (150) to rotate when the lock cylinder (130) slides downward.

3. The bonnet lock assembly (100) for a vehicle as claimed in claim 2, wherein the lock cylinder (130) is adapted to be moved from below upwards to slide the third mating portion (133) into the corresponding unlocking slot (102) after the lock cylinder (130) is moved downwards from the locked position until the third mating portion (133) is opposite the corresponding unlocking slot (102).

4. The bonnet lock assembly (100) for a vehicle as claimed in claim 3, wherein when the third mating portion (133) circumferentially alternates with the corresponding unlocking slot (102), the third mating portion (133) mates with the corresponding first mating portion (151) to drive the rotation of the self-locking ring (150) when the lock cylinder (130) slides upward until the third mating portion (133) slides into the corresponding unlocking slot (102).

5. The hood lock assembly (100) for a vehicle according to claim 4, wherein an upper end of the third fitting portion (133) is provided with a third inclined surface (105), a lower end of the first fitting portion (151) is provided with a fourth inclined surface (106), and the third inclined surface (105) is engaged with the corresponding fourth inclined surface (106) to rotate the self-locking ring (150) when the lock cylinder (130) slides upward.

6. The bonnet lock assembly (100) for a vehicle as claimed in claim 3, wherein the lock cylinder (130) is in an unlocked position and the third mating portion (133) is directly opposite the corresponding first mating portion (151), the third mating portion (133) mating with the corresponding first mating portion (151) to drive the self-locking ring (150) to rotate until the third mating portion (133) is opposite the corresponding unlocking slot (102) when the lock cylinder (130) is moved downward from the unlocked position.

7. The hood lock assembly (100) for a vehicle according to claim 6, wherein a lower end of the third fitting portion (133) is provided with a fifth slope (107), and the fifth slope (107) is fitted with the corresponding first slope (103) to drive the self-locking ring (150) to rotate when the lock cylinder (130) slides downward.

8. The hood lock assembly (100) for a vehicle according to claim 7, wherein after the third engagement portion (133) is disengaged from the corresponding unlocking groove (102), the first inclined surface (103) engages with the corresponding second inclined surface (104) to drive the self-locking ring (150) to rotate until the third engagement portion (133) is opposed to the corresponding locking groove (101) as the lock cylinder (130) continues to move down.

9. The bonnet lock assembly (100) for a vehicle as claimed in claim 8, wherein the lower end of the first engagement portion (151) is further provided with a sixth inclined surface (108), and when the third engagement portion (133) is circumferentially staggered with the corresponding locking groove (101), the sixth inclined surface (108) engages with the corresponding third inclined surface (105) to drive the rotation of the self-locking ring (150) when the lock cylinder (130) moves upward until the upper end of the third engagement portion (133) enters the corresponding locking groove (101).

10. A vehicle comprising a bonnet lock assembly (100) as claimed in any one of claims 1 to 9.