Engine hood lock device and automobile

Abstract

The invention discloses an engine hood lock device and an automobile. The engine hood lock device comprises a mounting seat; the pawl is installed on the installation base through a pawl shaft, the pawl is provided with ratchet teeth and ratchet hook teeth, the pawl is provided with a swing arm, and the swing arm is provided with a pull rope buckle; the ratchet wheel is installed on the installation base through a ratchet wheel shaft, the ratchet wheel is provided with closing teeth, locking teeth and first pawl teeth, the ratchet wheel is concaved inwards between the closing teeth and the locking teeth to form a first locking groove, the first pawl teeth can be matched with the ratchet wheel teeth to limit the ratchet wheel in a locking state, and the ratchet wheel is connected with a first elastic component; the ratchet hook is installed on the installation base through a ratchet hook shaft, a closing hook used for locking the lock catch extends out of the ratchet hook, the ratchet hook is provided with a first guide wall on the inner side of the closing hook, and the ratchet hook is provided with second pawl teeth. According to the two-stage unlocking device, the pawl, the ratchet wheel and the ratchet hook are ingeniously matched with one another, two-stage unlocking of the engine hood can be completed through double pulling, the unlocking action is completed in the same space, and operation is more convenient and faster.

Description

Technical Field

[0001] This invention relates to the automotive industry, and in particular to an engine hood locking device and an automobile. Background Technology

[0002] A hood lock is a device installed on the front hood of a car and between its pillars to reliably lock the hood. The hood lock must prevent the hood from being opened accidentally or unintentionally, while also ensuring that the hood can be opened smoothly when needed, ensuring passage in normal or emergency situations to avoid loss of life and property damage. It is a very important vehicle accessory.

[0003] Currently, the most common way to open a hood lock is as follows: First, the switch is flipped inside the car to initially open the hood. The second opening is done outside the car by pulling the opening mechanism at the bottom of the hood to fully open it. This process is relatively cumbersome, requiring pulling the opening mechanism twice in different locations.

[0004] In summary, the problems existing in the relevant technologies urgently need to be solved. Summary of the Invention

[0005] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide an engine hood locking device and an automobile.

[0006] The technical solution adopted by this invention to solve its technical problem is: In a first aspect, an engine hood locking device includes: Mounting base; A pawl is mounted on the mounting base via a pawl shaft. The pawl is provided with ratchet teeth and ratchet hook teeth. The pawl is provided with a swing arm, and the swing arm is provided with a pull rope buckle. A ratchet is mounted on the mounting base via a ratchet shaft. The ratchet has a closing tooth, a locking tooth, and a first pawl tooth. The ratchet is recessed inward between the closing tooth and the locking tooth to form a first locking groove for locking the latch. The first pawl tooth can engage with the ratchet tooth to confine the ratchet to a locked state. The ratchet is connected to a first elastic member, which drives the ratchet to rotate around the ratchet shaft to adjust the orientation of the first locking groove and release the latch. A ratchet is mounted on the mounting base via a ratchet shaft. The ratchet extends to a closing hook for locking the latch. The ratchet has a first guide wall extending obliquely toward the closing hook on its inner side. The ratchet has a second pawl tooth for engaging with the ratchet teeth. The ratchet can rotate around the ratchet shaft under the action of the ratchet teeth to adjust the orientation of the closing hook and release the latch.

[0007] In conjunction with the first aspect, some implementations of the first aspect further include a second elastic component. The swing arm is provided with a first connecting buckle, the ratchet is provided with a second connecting buckle, the ratchet shaft is located between the first connecting buckle and the second connecting buckle, and the second elastic component is tightened between the first connecting buckle and the second connecting buckle. In this case, as the ratchet rotates around the ratchet shaft under the action of the ratchet teeth, the second elastic component crosses the axis of the ratchet shaft.

[0008] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the pawl is provided with a limiting tooth, which can engage with the first pawl tooth of the ratchet to allow the pulled pawl to rotate and reset around the pawl axis.

[0009] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the ratchet is provided with an opening hook extending from the opposite side of the closing hook to the outside of the closing hook, and a second locking groove is provided between the opening hook and the closing hook.

[0010] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the ratchet is provided with a second guide wall extending obliquely toward the closing hook on the back side of the closing hook.

[0011] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the mounting base has a first side and a second side, the pawl and the ratchet are mounted on the first side of the mounting base, the ratchet is mounted on the second side of the mounting base, the mounting base is provided with a clearance groove extending from the first side to the second side, the ratchet teeth extend from the first side through the clearance groove to the second side, the ratchet has a notch at a position corresponding to the clearance groove, and the ratchet has a second pawl tooth extending into the notch to engage with the ratchet teeth.

[0012] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the mounting base is provided on the first side with a pawl limiting structure for limiting the pawl's swing stroke and a hook limiting structure for limiting the hook's swing stroke.

[0013] In conjunction with the first aspect and the above-described implementations, some implementations of the first aspect further include a cover plate, which is mounted on a first side of the mounting base via the pawl shaft and the ratchet shaft. A gap is left between the cover plate and the mounting base along the axial direction of the pawl shaft, and the pawl and the ratchet are mounted in the gap.

[0014] In combination with the first aspect and the above-described implementations, some implementations of the first aspect further include a first sensor and a second sensor, wherein the first sensor is used to detect the position information of the ratchet rotating about the ratchet axis, and the second sensor is used to detect the position information of the ratchet rotating about the ratchet axis.

[0015] Secondly, a type of automobile includes: The engine hood is equipped with a latch; The engine hood locking device described in any implementation of the first aspect.

[0016] One of the above technical solutions has at least one of the following advantages or beneficial effects: This invention enables two-stage unlocking of the engine hood by pulling the pawl twice (double pull). The first pull releases the ratchet to complete the first stage of unlocking, and the second pull engages the hook to complete the second stage of unlocking. This invention, through the ingenious cooperation of the pawl, ratchet, and hook, allows for two-stage unlocking of the engine hood with a single pull. The unlocking actions are completed within the same space, making the operation more convenient and faster.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of an embodiment of the present invention; Figure 2 This is an exploded view of an embodiment of the present invention; Figure 3 This is a schematic diagram of a ratchet structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a ratchet structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the mounting base structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of a ratchet structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the unlocking process according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the locking process according to an embodiment of the present invention. Detailed Implementation

[0019] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0020] In this invention, when directions (up, down, left, right, front, and back) are described, it is only for the purpose of describing the technical solution of this invention, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0021] In this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number; "above," "below," "within," etc., are understood to include the stated number. In the description of this invention, the terms "first" and "second" are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention based on the specific content of the technical solution.

[0023] See Figures 1-6 This invention provides an engine hood locking device that can be installed on a vehicle body and locks the engine hood by engaging with a hood latch. The engine hood locking device includes a mounting base 100, a pawl 200, a ratchet 300, and a hook 400, wherein, see [link to documentation]. Figure 5 The mounting base 100 is provided with a plurality of mounting holes 101, which allow the mounting base 100 to be stably mounted on the vehicle body. The mounting base 100 is provided with a first latch clearance groove 102, which is recessed downward from the top edge of the mounting base 100 to provide clearance space for the latch 500 when the hood is closed downward.

[0024] See Figure 1 , Figure 2 , Figure 3The pawl 200 is mounted on the mounting base 100 via the pawl shaft 201. The pawl 200 has ratchet teeth 202 and hook teeth 203. The pawl 200 has a swing arm 204, and the swing arm 204 has a pull rope buckle 205. The pull rope buckle 205 is used to connect a pull rope 206. The other end of the pull rope 206 can extend into the cockpit for the operator to perform the engine hood unlocking action. Specifically, the pawl 200 can rotate clockwise around the pawl shaft 201 under the pull of the pull rope 206, converting the pull of the pull rope 206 into the rotation of the ratchet teeth 202 and hook teeth 203 around the pawl shaft 201. Thus, the unlocking function is achieved through the cooperation of the ratchet teeth 202 and hook teeth 203 with the ratchet 300 and hook 400.

[0025] See Figure 1 , Figure 2 , Figure 4 The ratchet 300 is used for the first-stage locking of the latch 500. The ratchet 300 is mounted on the mounting base 100 via the ratchet shaft 305. The ratchet 300 has a closing tooth 301, a locking tooth 302, and a first pawl tooth 303. The ratchet 300 is recessed inward between the closing tooth 301 and the locking tooth 302, forming a first locking groove 304 for locking the latch 500. One end of the first locking groove 304 is open, and the width of the first locking groove 304 is slightly larger than the diameter of the latch 500, so that the latch 500... The ratchet 300 can smoothly enter and exit the ratchet 500 by adjusting the orientation of the first locking groove 304 around the ratchet shaft 305. For example, when the opening of the first locking groove 304 faces to one side and the first locking groove 304 is roughly in a horizontal position, the ratchet 300 can limit the lock 500 to a locked state. When the opening of the first locking groove 304 faces upward, the lock 500 can smoothly exit from the first locking groove 304, thus achieving the unlocking function. The first pawl tooth 303 can cooperate with the ratchet tooth 202 to limit the ratchet 300 to a locked state. The ratchet 300 is connected to the first elastic member 306, which drives the ratchet 300 to rotate around the ratchet shaft 305 to adjust the orientation of the first locking groove 304 and release the lock 500. When the pawl 200 rotates, the first pawl tooth 303 engages with the ratchet tooth 202 and disengages. Under the action of the first elastic member 306, the ratchet 300 rotates clockwise around the ratchet shaft 305, and the originally horizontal first locking groove 304 gradually becomes vertical, thereby releasing the lock 500.

[0026] The first elastic component 306 can be a torsion spring, a spring, etc., for example in Figure 1 In the embodiment shown, the first elastic component 306 is a spring, one end of which is connected to the ratchet 300 and the other end of which is connected to the mounting base 100.

[0027] See Figure 1 , Figure 2 , Figure 6 The ratchet 400 is used for the secondary locking of the latch 500. The ratchet 400 is mounted on the mounting base 100 via the ratchet shaft 401. The ratchet 400 extends out to form a closing hook 402 for locking the latch 500. The ratchet 400 has a first guide wall 403 extending obliquely towards the closing hook 402 on the inner side of the closing hook 402. The ratchet 400 has a second pawl tooth 409 for engaging with the ratchet tooth 203. The ratchet 400 can rotate around the ratchet shaft 401 under the action of the ratchet tooth 203 to adjust the orientation of the closing hook 402 and release the latch 500.

[0028] Combination Figure 7 The unlocking principle of this invention is as follows: With the engine hood fully closed, the ratchet tooth 202 of the pawl 200 engages with the first pawl tooth 303 of the ratchet 300, locking the ratchet 300 in place. The first locking groove 304 of the ratchet 300 restricts the latch 500 to the locked position. To unlock, the pawl 200 is pulled by the pull rope 206, causing it to rotate clockwise around the pawl shaft 201. The ratchet tooth 202 of the pawl 200 disengages from the first pawl tooth 303 of the ratchet 300, and the ratchet 300 rotates clockwise around the ratchet shaft 305 under the action of the first elastic component 306. The latch 500 disengages outward from the first locking groove 304 and engages with the first guide wall 403 of the hook 400, pushing the hook 400 to rotate counterclockwise around the hook shaft 401 and engage with the closing hook 402, thus achieving first-level unlocking. Pulling the pawl 200 again via the pull rope 206 causes the pawl 200 to move the second pawl tooth 409 of the hook 400 via the hook tooth 203 at its end, causing the hook 400 to rotate counterclockwise around the hook axis 401, and causing the closing hook 402 to adjust its orientation to release the lock 500, thus achieving secondary unlocking.

[0029] This invention enables two-stage unlocking of the engine hood by pulling the pawl 200 twice. The first pull releases the ratchet 300, completing the first level of unlocking. The second pull engages the hook 400, completing the second level of unlocking. Through the ingenious coordination of the pawl 200, ratchet 300, and hook 400, this invention allows for two-stage unlocking of the engine hood with a single pull. All unlocking actions are performed within the same space, making operation more convenient and faster.

[0030] In some embodiments, see Figure 1 , Figure 2The engine hood locking device also includes a second elastic component 600. The swing arm 204 is provided with a first connecting buckle 207, and the ratchet 400 is provided with a second connecting buckle 404. The ratchet shaft 401 is located between the first connecting buckle 207 and the second connecting buckle 404. The second elastic component 600 is tightened between the first connecting buckle 207 and the second connecting buckle 404. During the rotation of the ratchet 400 around the ratchet shaft 401 under the action of the ratchet tooth 203, the second elastic component 600 crosses the axis of the ratchet shaft 401.

[0031] Second elastic component 600 ( Figure 7 (As shown by the dashed line) The second elastic member 600 provides a force for the pawl 200 and the ratchet 400 to rotate around their respective axes. Specifically, the second elastic member 600 is tensioned in the opposite direction to the pull rope 206 for the pawl 200, providing a force opposite to the pulling direction of the pull rope 206. That is, when the pull rope 206 stops pulling the pawl 200, the pawl 200 can automatically rotate counterclockwise around the pawl axis 201 to reset under the action of the second elastic member 600. For the ratchet 400, the second elastic member 600 produces different pulling effects depending on the rotational position of the ratchet 400, see [link to relevant documentation]. Figure 7 With the engine hood fully closed, the ratchet 400 is in its initial position. The second elastic component 600 is tensioned between the pawl 200 and the ratchet 400, and is located below the ratchet shaft 401. At this time, the second elastic component 600 provides a force for the ratchet 400 to rotate clockwise around the ratchet shaft 401, and keeps the ratchet 400 in its initial position. When the pull rope 206 pulls the pawl 200 to perform the first-level unlocking action, the ratchet 400 rotates counterclockwise around the ratchet shaft 401 under the action of the latch 500 and the first guide wall 403. At this time, the second elastic component 600 moves closer to the ratchet shaft 401. Furthermore, when the pull rope 206 pulls the pawl 200 again to perform secondary unlocking, the pawl 200, through the ratchet tooth 203 at its end, moves the second pawl tooth 409 of the hook 400, causing the hook 400 to rotate counterclockwise around the hook shaft 401. During the rotation, the second elastic component 600 crosses the axis of the hook shaft 401, and the pulling force of the second elastic component 600 crosses the dead point. The second elastic component 600 pulls the hook 400 to rotate counterclockwise, and the lock 500 disengages from the closing hook 402. This embodiment utilizes the second elastic component 600 on the hook 400 to cross the dead point of the rotating shaft to achieve double-pull unlocking.

[0032] In some embodiments, see Figure 3 , Figure 7The pawl 200 is equipped with a limiting tooth 208, which can engage with the first pawl tooth 303 of the ratchet 300 to allow the pulled pawl 200 to rotate and reset around the pawl shaft 201. When the pull rope 206 pulls the pawl 200 to perform the first-level unlocking action, the pawl 200 releases the ratchet 300, and the ratchet 300 rotates clockwise around the ratchet shaft 305. During this rotation, the first pawl tooth 303 of the ratchet 300 engages with the limiting tooth 208 of the pawl 200 to allow the pawl 200 to rotate counterclockwise around the pawl shaft 201 and reset, so as to better wait for the second-level unlocking action.

[0033] In some embodiments, see Figure 1 , Figure 2 , Figure 6 The ratchet 400 has an opening hook 405 extending from the opposite side of the closing hook 402 to the outside of the closing hook 402, and a second locking groove 406 is provided between the opening hook 405 and the closing hook 402. See also Figure 7 During the secondary unlocking process, after the latch 500 is disengaged from the closing hook 402, it enters the second latch groove 406 between the opening hook 405 and the closing hook 402. When the engine hood is opened, the latch 500 pushes the opening hook 405 upward and causes the ratchet 400 to rotate clockwise around the ratchet shaft 401. During this process, the second elastic component 600 passes over the ratchet shaft 401 and crosses the dead point of the shaft. Finally, the ratchet 400 is reset under the action of the second elastic component 600.

[0034] In some embodiments, see Figure 1 , Figure 2 , Figure 6 The ratchet 400 has a second guide wall 407 extending obliquely towards the closing hook 402 on the back side of the closing hook 402. The function of the second guide wall 407 is to cooperate with the latch 500 to push open the closing hook 402 when the hood is closed, so that the latch 500 engages in the closing hook 402. The hood can be easily closed by gently releasing it, eliminating safety risks.

[0035] See Figure 8 When the engine hood is closed, the latch engages with the engine hood locking device as follows: The latch 500 snaps down with the engine hood, engaging with the second guide wall 407. This automatically pushes open the ratchet 400, causing it to overcome the elastic force of the second elastic component 600 and rotate counter-clockwise around the ratchet axis 401. After the latch 500 passes the closing hook 402, the ratchet 400 automatically resets under the action of the second elastic component 600, and the latch 500 engages with the closing hook 402, achieving the first-stage closure. Continuing to press the engine hood, the latch 500 touches the ratchet 300 and engages with the first latch groove 304. The latch 500 pushes the ratchet 300 to rotate counter-clockwise and finally locks through the pawl 200, achieving the second-stage closure. The ratchet 400 then resets under the action of the second elastic component 600.

[0036] In some embodiments, see Figure 1 , Figure 2 , Figure 5 The mounting base 100 is made of sheet metal and has a first side and a second side. A pawl 200 and a ratchet 300 are mounted on the first side of the mounting base 100, and a ratchet 400 is mounted on the second side of the mounting base 100. The mounting base 100 has a clearance groove 103 that extends from the first side to the second side. The ratchet tooth 203 extends from the first side through the clearance groove 103 to the second side. The ratchet 400 has a notch 408 at a position corresponding to the clearance groove 103. The ratchet 400 has a second pawl tooth 409 that extends into the notch 408 to engage with the ratchet tooth 203. When the rope pulls the pawl to perform the first-level unlocking action, the ratchet rotates clockwise around the ratchet axis and drives the pawl 200 to reset through the first pawl tooth 303. During the reset process, the pawl hook tooth 203 of the pawl 200 passes over the second pawl tooth 409 in the notch 408 so that the pawl 200 can move the second pawl tooth 409 during the second-level unlocking process.

[0037] See Figure 5 The mounting base 100 has a pawl limiting structure 104 for limiting the swing stroke of the pawl 200 and a ratchet limiting structure 105 for limiting the swing stroke of the ratchet 400 on its first side.

[0038] In some embodiments, see Figure 1 , Figure 2 The system also includes a cover plate 700, which is mounted on the first side of the mounting base 100 via a pawl shaft 201 and a ratchet shaft 305. A gap is maintained between the cover plate 700 and the mounting base 100 along the axial direction of the pawl shaft 201. The pawl 200 and ratchet 300 are mounted within this gap. The cover plate 700 has a second locking clearance groove 701 at a position corresponding to the first locking clearance groove 102. In this embodiment, by providing a cover plate 700 on the first side of the mounting base 100, the engagement accuracy and stability of the pawl 200 and ratchet 300 are effectively improved.

[0039] In some embodiments, see Figure 1 , Figure 2 It also includes a first sensor 801 and a second sensor 802. The first sensor 801 is used to detect the position information of the ratchet 400 rotating around the ratchet axis 401, and the second sensor 802 is used to detect the position information of the ratchet 300 rotating around the ratchet axis 305. By checking the status of the double zipper through the two sensors, the vehicle's infotainment system is provided with real-time feedback to remind the driver to avoid accidents and eliminate safety hazards.

[0040] Embodiments of the present invention also provide an automobile, including an engine hood and an engine hood locking device as described in any of the above embodiments, wherein the engine hood is provided with a buckle 500.

[0041] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An engine hood locking device, characterized in that, include: Mounting base; A pawl is mounted on the mounting base via a pawl shaft. The pawl is provided with ratchet teeth and ratchet hook teeth. The pawl is provided with a swing arm, and the swing arm is provided with a pull rope buckle. A ratchet is mounted on the mounting base via a ratchet shaft. The ratchet has a closing tooth, a locking tooth, and a first pawl tooth. The ratchet is recessed inward between the closing tooth and the locking tooth to form a first locking groove for locking the latch. The first pawl tooth can engage with the ratchet tooth to confine the ratchet to a locked state. The ratchet is connected to a first elastic member, which drives the ratchet to rotate around the ratchet shaft to adjust the orientation of the first locking groove and release the latch. A ratchet is mounted on the mounting base via a ratchet shaft. The ratchet extends to a closing hook for locking the latch. The ratchet has a first guide wall extending obliquely toward the closing hook on its inner side. The ratchet has a second pawl tooth for engaging with the ratchet teeth. The ratchet can rotate around the ratchet shaft under the action of the ratchet teeth to adjust the orientation of the closing hook and release the latch.

2. The engine hood locking device according to claim 1, characterized in that, It also includes a second elastic component. The swing arm is provided with a first connecting buckle, and the ratchet is provided with a second connecting buckle. The ratchet shaft is located between the first connecting buckle and the second connecting buckle. The second elastic component is tightened between the first connecting buckle and the second connecting buckle. During the process of the ratchet rotating around the ratchet shaft under the action of the ratchet teeth, the second elastic component crosses the axis of the ratchet shaft.

3. The engine hood locking device according to claim 1, characterized in that, The pawl is provided with a limiting tooth, which can engage with the first pawl tooth of the ratchet to allow the pulled pawl to rotate and reset around the pawl axis.

4. The engine hood locking device according to claim 1, characterized in that, The ratchet has an opening hook extending from the opposite side of the closing hook to the outside of the closing hook, and a second locking groove is provided between the opening hook and the closing hook.

5. The engine hood locking device according to claim 4, characterized in that, The ratchet has a second guide wall that extends obliquely toward the closing hook on the back side of the closing hook.

6. The engine hood locking device according to claim 1, characterized in that, The mounting base has a first side and a second side. The pawl and the ratchet are mounted on the first side of the mounting base, and the ratchet is mounted on the second side of the mounting base. The mounting base has a clearance groove extending from the first side to the second side. The ratchet teeth extend from the first side through the clearance groove to the second side. The ratchet has a notch at a position corresponding to the clearance groove. The ratchet has a second pawl tooth extending into the notch to engage with the ratchet teeth.

7. The engine hood locking device according to claim 6, characterized in that, The mounting base is provided on the first side with a pawl limiting structure for limiting the swing stroke of the pawl and a hook limiting structure for limiting the swing stroke of the hook.

8. The engine hood locking device according to claim 6, characterized in that, It also includes a cover plate, which is mounted on the first side of the mounting base via the pawl shaft and the ratchet shaft. A gap is left between the cover plate and the mounting base along the axial direction of the pawl shaft, and the pawl and the ratchet are mounted in the gap.

9. The engine hood locking device according to claim 1, characterized in that, It also includes a first sensor and a second sensor, the first sensor being used to detect the position information of the ratchet rotating about the ratchet axis, and the second sensor being used to detect the position information of the ratchet rotating about the ratchet axis.

10. A car, characterized in that, include: The engine hood is equipped with a latch; The engine cover locking device according to any one of claims 1 to 9.

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