Front hood lock and vehicle

Abstract

A vehicle, comprising a front hood lock. The front hood lock comprises a mounting plate, a latch bolt, a locking arm, a suction structure and an unlocking arm; the latch bolt, the locking arm, the suction structure and the unlocking arm are pivotally mounted on the mounting plate; and the unlocking arm pushes both the suction structure and the locking arm to be separated from the latch bolt.

Description

Hood lock and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to a Chinese patent application filed on December 29, 2023, with application number 202311863556.9 and patent application name “Front Hood Lock and Vehicle,” all contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of vehicles, and in particular to a front hood lock and a vehicle. Background Art

[0004] In the related art, a vehicle includes a front engine compartment and a front hood mounted on the front engine compartment. The front hood is provided with a front hood lock to fix the relative position of the front hood and the vehicle body, thereby preventing the front hood from bouncing up during driving and affecting driving safety.

[0005] However, there is a risk that the front hood lock may become stuck in the mechanical structure and cannot be opened, and there is an urgent need for a front hood lock that can be unlocked urgently. Summary of the Invention

[0006] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application proposes a front hood lock that can realize emergency unlocking, which is conducive to improving the safety of use.

[0007] The present application also proposes a vehicle.

[0008] According to an embodiment of the present application, the front hood lock includes a mounting plate, a lock tongue, a locking arm, an attraction structure and an unlocking arm. The lock tongue, the locking arm, the attraction structure and the unlocking arm are pivotally mounted on the mounting plate, and the unlocking arm pushes the attraction structure and the locking arm to separate from the lock tongue.

[0009] According to the hood lock of the embodiment of the present application, the lock tongue position is unlocked by separating the lock tongue from the suction structure and the lock tongue from the locking arm, thereby unlocking the hood lock. When emergency unlocking is required, the unlocking arm pushes the suction structure and locking arm apart, separating the suction structure and the locking arm from the lock tongue, allowing the lock tongue to return to the unlocked position, thereby increasing the operational reliability and safety of the hood lock. The hood lock of the present application can achieve emergency unlocking to address situations where the hood lock cannot be unlocked, thereby improving the operational reliability of the hood lock. Furthermore, the hood lock of the present application has a simple structure and is easy to manufacture and assemble.

[0010] In some embodiments, the unlocking arm includes a control arm and a disengagement arm, and both the control arm and the disengagement arm can be pivotally mounted on the mounting plate; when the control arm rotates along a first direction, it drives the disengagement arm and the locking arm to rotate along the first direction, so that the disengagement arm pushes the suction structure to separate from the lock tongue, and separates the locking arm from the lock tongue.

[0011] In some embodiments, the locking arm and the control arm are both pivotally connected to the mounting plate at a first pivot axis, and the locking arm is located on an unlocking path of the control arm so that when the control arm rotates along the first direction, the control arm can drive the locking arm to rotate along the first direction.

[0012] In some embodiments, a guide groove is provided on the disengagement arm, and a guide pin is provided on the control arm. The guide pin is arranged in the guide groove, and the guide pin can move along the groove wall of the guide groove.

[0013] In some embodiments, the suction structure includes a suction arm and a suction push arm, and the disengagement arm and the suction push arm are both pivotally connected to the mounting plate at a second pivot axis. One end of the suction arm is pivotally connected to the suction push arm, and the other end of the suction arm is provided with a disengagement pin. When the control arm drives the disengagement arm to rotate through the guide pin, the disengagement arm can push the disengagement pin to move along the limit groove.

[0014] In some embodiments, the front hood lock also includes an attraction drive mechanism, which is used to drive the attraction push arm to rotate along the second direction. When the attraction push arm rotates along the second direction, it drives the attraction arm to rotate along the first direction and causes the release pin to move along the limit groove. The first direction is clockwise and the second direction is counterclockwise.

[0015] In some embodiments, the attraction arm is pre-tightened and fixed to the attraction push arm by an attraction arm spring, the attraction push arm is pre-tightened and fixed to the mounting plate by an attraction push arm spring, the control arm is pre-tightened and fixed to the mounting plate by a control arm spring, and the disengagement arm is pre-tightened and fixed to the mounting plate by a disengagement arm spring.

[0016] In some embodiments, the locking arm includes a locking arm body and a locking structure connected to the locking arm body, the locking arm body can be pivotally mounted on the mounting plate, the locking tongue includes a locking tongue body and a locking tongue structure, the locking tongue body can be pivotally mounted on the mounting plate, the locking tongue structure is arranged on the locking tongue body, and the locking tongue structure is suitable for locking with or separating from the locking structure.

[0017] In some embodiments, the tongue structure includes a first tongue structure and a second tongue structure, and the first tongue structure and the second tongue structure are arranged spaced apart along the rotation direction of the lock tongue. The front hood lock has a semi-locked state and a fully locked state. When the front hood lock has a semi-locked state, the lock structure is locked with the second tongue structure; when the front hood lock has a fully locked state, the lock structure is locked with the first tongue structure.

[0018] In some embodiments, the front hood lock also includes: an unlocking drive mechanism, which is used to drive the locking arm to rotate in a first direction to separate the locking structure from the tongue structure; and an unlocking cable, through which the unlocking drive mechanism and the locking arm are connected.

[0019] In some embodiments, the front hood lock further includes a cable connected to the control arm, and the cable is used to pull the control arm to rotate.

[0020] A vehicle according to an embodiment of the present application includes a hood lock according to an embodiment of the present application.

[0021] According to an embodiment of the present application, a vehicle equipped with the aforementioned hood lock can lock the hood in a closed position, thereby preventing the hood from lifting while the vehicle is in motion, thereby improving vehicle safety. Furthermore, locking the hood in the closed position also serves as a theft deterrent. When emergency unlocking is required, a cable is pulled to activate an unlocking arm, which pushes the engaging and locking arms apart, returning the lock tongue to the unlocked position and allowing the hood to be opened. This improves the reliability and safety of the hood lock.

[0022] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a perspective view of a front hood lock according to an embodiment of the present application;

[0024] FIG2 is a partial cross-sectional schematic diagram of a front hood lock according to an embodiment of the present application;

[0025] FIG3 is an enlarged view of FIG2 at point A, with the lock tongue in the unlocked position;

[0026] FIG4 is a schematic structural diagram of an unlocking cable, a locking arm, and a locking tongue in a front hood lock according to an embodiment of the present application;

[0027] FIG5 is a schematic structural diagram of a front hood lock when a lock tongue and an engagement arm are not engaged according to an embodiment of the present application;

[0028] FIG6 is a schematic structural diagram of a front hood lock when a lock tongue and an engagement arm are engaged according to an embodiment of the present application;

[0029] FIG7 is a schematic structural diagram of a pull cable emergency opening front hatch lock according to an embodiment of the present application;

[0030] FIG8 is a schematic structural diagram of a vehicle according to an embodiment of the present application.

[0031] Reference numerals:

[0032] Vehicle 200, front hood lock 100, mounting plate 1, cable 2, unlocking cable 3, suction cable 4, fixing plate 6, locking arm 7, first pivot axis 8, locking arm spring 9, lock tongue 10, lock tongue pin 11, lock tongue reset member 12, locking structure 13, tongue structure 14, first tongue structure 141, second tongue structure 142, unlocking cable structure 15, suction push arm 16, second pivot axis 17, suction push arm spring 18, third pivot axis 19, suction arm spring 20, release pin 21, suction arm 22, lock tongue suction structure 23, suction arm suction structure 24, limiting slot 25, control arm spring 26, control arm 27, disengagement arm 28, guide pin 29, disengagement arm spring 30, disengagement arm disengagement structure 31, emergency disengagement cable structure 32, guide slot 33. DETAILED DESCRIPTION

[0033] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0034] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0035] The hood lock 100 according to an embodiment of the present application will be described in detail below with reference to FIG. 1 to FIG. 8 .

[0036] 1 and 7 , a hood lock 100 according to an embodiment of the present application includes a mounting plate 1 , a lock tongue 10 , a locking arm 7 , an engaging structure, and an unlocking arm.

[0037] The lock tongue 10 is installed on the mounting plate 1, and the lock tongue 10 can pivot relative to the mounting plate 1; the locking arm 7 is installed on the mounting plate 1, and the locking arm 7 can pivot relative to the mounting plate 1; the suction structure is installed on the mounting plate 1, and the suction structure can pivot relative to the mounting plate 1; the unlocking arm is installed on the mounting plate 1, and the unlocking arm can pivot relative to the mounting plate 1.

[0038] When the suction structure moves, the suction structure can push the lock tongue 10 to rotate, and the lock tongue 10 can be rotated to lock with the locking arm 7; when the suction structure is separated from the lock tongue 10 and the locking arm 7 is separated from the lock tongue 10, the lock tongue 10 can be rotated to the unlocking position under the action of the lock tongue reset member 12.

[0039] The unlocking arm can push the suction structure to separate from the lock tongue 10, and the locking arm 7 to separate from the lock tongue 10, so that the lock tongue 10 can be rotated to the unlocking position to achieve emergency unlocking.

[0040] In the related art, some hood locks lack an emergency unlocking function. Other hood locks, to achieve emergency unlocking, utilize a mechanical transmission structure assembled from multiple components between the emergency unlocking device and the locking arm, such as a shift lever, a shift fork, a connecting rod, a limit plate, and a shift block. During unlocking, the shift lever pushes the shift fork, which shifts the ratchet plate. Simultaneously, the connecting rod pushes the limit plate, releasing the limit plate from its position on the shift block. The shift block returns to its original position, releasing its action on the lock tongue. In the present application, only the unlocking arm is provided. The unlocking arm can simultaneously push the engaging structure and the lock tongue 10, separating the engaging structure from the lock tongue 10 and the locking arm 7 from the lock tongue 10. Thus, compared to the closest solution in the related art, the hood lock 100 of the present application can achieve emergency unlocking in the event that the hood lock 100 cannot be unlocked, improving the reliability and safety of the hood lock 100. Furthermore, the hood lock 100 of the present application has a more streamlined structure, making it easier to manufacture and assemble.

[0041] According to the hood lock 100 of the embodiment of the present application, the lock tongue 10 is unlocked by separating the lock tongue 10 from the suction structure and the lock tongue 10 from the locking arm 7, thereby unlocking the hood lock 100. When emergency unlocking is required, the unlocking arm can push the suction structure and locking arm 7 apart, and the lock tongue 10 can return to the unlocked position, thereby increasing the operational reliability and safety of the hood lock 100. The hood lock 100 of the present application can achieve emergency unlocking to address situations where the hood lock 100 cannot be unlocked due to a failure of the suction structure, thereby improving the operational reliability of the hood lock 100. At the same time, the hood lock 100 of the present application has a simple structure and is easy to manufacture and assemble. The suction arm suction structure 24 and the lock tongue 10 include a lock tongue suction structure 23. The suction structure includes the suction structure and the lock tongue 10, specifically, the suction of the suction arm suction structure 24 and the lock tongue suction structure 23.

[0042] Optionally, the attraction arm attraction structure 24 and the lock tongue attraction structure 23 may be magnetically attracted.

[0043] Optionally, the suction structure can abut against the lock tongue 10 to push the lock tongue 10 to rotate when the suction structure rotates. The area on the suction structure that abuts against the lock tongue 10 is the suction arm suction structure 24, and the area on the lock tongue 10 that abuts against the suction structure is the lock tongue suction structure 23.

[0044] As shown in Figures 1 and 2, for example, a hood lock 100 includes a mounting plate 1 and a fixing plate 6. The fixing plate 6 can be mounted on the mounting plate 1. A mounting space is defined between the fixing plate 6 and the mounting plate 1, where a lock tongue 10, a locking arm 7, an engaging structure, an unlocking arm, and a cable 2 can be mounted. The cable 2 is connected to the unlocking arm, which can pull the unlocking arm, causing it to rotate. This allows the unlocking arm to separate the engaging structure from the lock tongue 10, and the unlocking arm to separate the locking arm 7 from the lock tongue 10. The lock tongue 10 can then rotate under the action of a lock tongue reset member 12 to an unlocked position, achieving emergency unlocking.

[0045] As shown in Figures 2 and 7, in some embodiments, the unlocking arm includes a control arm 27 and a disengagement arm 28. The control arm 27 is mounted on the mounting plate 1, and the control arm 27 can pivot relative to the mounting plate 1; the disengagement arm 28 is mounted on the mounting plate 1, and the disengagement arm 28 can pivot relative to the mounting plate 1. The cable 2 is connected to the control arm 27, and the cable 2 can pull the control arm 27 to rotate in a first direction, where the first direction is the clockwise direction as shown in Figures 2 to 7; when the control arm 27 rotates in the clockwise direction, the control arm 27 can drive the disengagement arm 28 to rotate in the clockwise direction, so that the disengagement arm 28 pushes the suction structure to rotate clockwise, so that the suction structure is separated from the lock tongue 10; the control arm 27 can drive the locking arm 7 to rotate in the clockwise direction, and the control arm 27 drives the locking arm 7 to separate from the lock tongue 10. By providing the control arm 27 and the disengaging arm 28, the locked state of the front hood lock 100 can be released, thereby solving the problem of the front hood lock 100 being stuck, and being conducive to the simplification of the structure of the front hood lock 100; when the front hood needs to be opened urgently, the control arm 27 is controlled by the cable 2, which is conducive to the convenience of emergency unlocking.

[0046] As shown in Figure 7, for example, the cable 2 is connected to the control arm 27 via an emergency release cable structure 32, thereby allowing the cable 2 to pull the control arm 27 to rotate. The emergency release cable structure 32 can be connected to the cable 2 and embedded in the control arm 27. Optionally, the emergency release cable structure 32 can be configured as a straight segment structure or a ball head structure.

[0047] As shown in FIG7 , for example, a control arm pin may be mounted on the mounting plate 1 , and the control arm 27 may rotate around the control arm pin; a release arm pin may be mounted on the mounting plate 1 , and the release arm 28 may rotate around the release arm pin.

[0048] As shown in Figures 4 and 7, in some embodiments, the locking arm 7 is pivotally connected to the mounting plate 1 at a first pivot axis 8, and the control arm 27 is also pivotally connected to the mounting plate 1 at the first pivot axis 8. During emergency unlocking, the control arm 27 rotates clockwise, and the rotation path is the unlocking path of the control arm 27. The locking arm 7 is located along this unlocking path. Therefore, when the cable 2 pulls the control arm 27 clockwise, the control arm 27 rotates along the unlocking path, that is, the control arm 27 can drive the locking arm 7 to rotate clockwise. By pivotally mounting the locking arm 7 and the control arm 27 at the first pivot axis 8, both the locking arm 7 and the control arm 27 can rotate about the first pivot axis 8, thereby achieving more synchronized movement of the locking arm 7 and the control arm 27. Compared to solutions using different pivot axes, this design can achieve a more compact structure and a smoother movement of the control arm 27 pushing the locking arm 7. Optionally, the locking arm 7 has a locking arm side wall that stops the control arm 27 , and when the control arm 27 rotates along the first direction, the control arm 27 can contact the locking arm side wall, thereby pushing the locking arm 7 to rotate synchronously.

[0049] As shown in Figures 4 and 7, for example, the locking arm 7 is connected to the first pivot axis 8 via a locking arm pin, so that the locking arm 7 can rotate around the locking arm pin. Specifically, the locking arm pin and the control arm pin are both mounted on the first pivot axis 8. Optionally, the locking arm pin and the control arm pin can be integrated into a single pin structure.

[0050] 4 and 7 , specifically, the unlocking path of the control arm 27 is a path in which the control arm 27 rotates clockwise around the control arm pin.

[0051] As shown in FIG7 , in some embodiments, a guide slot 33 is provided on the release arm 28, and a guide pin 29 is provided on the control arm 27. The guide pin 29 is disposed within the guide slot 33 and is movable along the walls of the guide slot 33. Thus, when the control arm 27 rotates clockwise, the guide pin 29 on the control arm 27 also rotates clockwise, abutting against the walls of the guide slot 33. The control arm 27 is connected via the guide pin 29 and pushes the release arm 28 to move, thereby enabling the release arm 28 to move in conjunction with the control arm 27. The provision of the guide pin 29 and the guide slot 33 achieves linkage between the release arm 28 and the control arm 27. This streamlined structure improves the reliability of the connection between the release arm 28 and the control arm 27, preventing disengagement between the release arm 28 and the control arm 27. For example, when the cable 2 is pulled outward, the control arm 27 rotates clockwise, driving the guide pin 29 to slide in the guide groove 33, thereby driving the disengagement arm 28 to rotate clockwise.

[0052] As shown in Figures 5 to 7, in some embodiments, the suction structure includes a suction arm 22 and a suction push arm 16. The disengagement arm 28 is pivotally connected to the mounting plate 1 at the second pivot axis 17, and the suction push arm 16 is also pivotally connected to the mounting plate 1 at the second pivot axis 17. One end of the suction arm 22 is connected to the third pivot axis 19, and the suction arm 22 can pivot relative to the third pivot axis 19. The suction arm 22 is connected to the suction push arm 16 at the third pivot axis 19, and the other end of the suction arm 22 is provided with a disengagement pin 21. A limiting groove 25 is provided on the mounting plate 1 and / or the fixed plate 6. When the control arm 27 drives the disengagement arm 28 to rotate through the guide pin 29, the disengagement arm 28 can push the disengagement pin 21 to move along the limiting groove 25, thereby realizing the rotation of the suction arm 22. By installing the suction arm 22 at the third pivot axis 19 and connecting it to the suction push arm 16, the suction arm 22 can move under the action of the suction push arm 16, and the suction arm 22 can both pivot relative to the suction push arm 16 and move when the suction push arm 16 pivots relative to the second pivot axis 17, so that the suction arm 22 can make planar motion; by setting the disengagement pin 21 to move along the limit slot 25, the suction arm 22 can move along a predetermined route to avoid taking the wrong route, thereby improving the reliability of the front hood lock 100; when the suction arm 22 is stuck, the disengagement pin 21 on the suction arm 22 is pushed by the disengagement arm 28, and the disengagement arm 28 can push the suction arm 22 to move along the limit slot 25, thereby achieving the purpose of emergency opening of the front hood lock 100, further improving the reliability and safety of the front hood lock 100.

[0053] Optionally, the limiting groove 25 is a full-circle annular groove formed on the mounting plate 1 and / or the fixed plate 6. For example, the limiting groove 25 is a full-circle annular groove formed on the mounting plate 1, or the limiting groove 25 is a full-circle annular groove formed on the fixed plate 6, or the limiting groove 25 is a full-circle annular groove formed on the mounting plate 1 and the fixed plate 6. By providing an opening on the mounting plate 1 and / or the fixed plate 6 that matches the motion trajectory of the release pin 21, the motion range of the suction arm 22 is limited by the cooperation between the opening and the release pin 21. By providing the opening as a full-circle annular groove structure, the reliability of the unlocking cable and the suction cable can be improved.

[0054] As shown in Figure 7, for example, the disengagement arm 28 includes a disengagement arm disengagement structure 31, which can abut and cooperate with the disengagement pin 21, and when the disengagement arm 28 rotates along the first direction, the disengagement arm disengagement structure 31 can push the disengagement pin 21 to move, thereby driving the suction arm 22 to move.

[0055] Optionally, a limiting groove 25 can be provided on the mounting plate 1 , and the limiting groove 25 is constructed as a groove formed on the mounting plate 1 along the thickness direction, and the release pin 21 can partially extend into the groove, and the groove wall of the groove provides support force to the release pin 21, so that the release pin 21 can move along the limiting groove 25 .

[0056] As shown in Figures 1 and 2, for example, the limiting groove 25 can be set on the fixed plate 6. In other words, an opening is formed on the fixed plate 6 along the limiting groove 25 in the thickness direction, and the release pin 21 can partially extend into the opening. The hole wall of the opening forms the limiting groove 25, and the hole wall of the opening provides support force to the release pin 21, so that the release pin 21 can move along the limiting groove 25.

[0057] For example, the pull-in push arm 16 is connected to the second pivot axis 17 via a pull-in push arm pin, thereby allowing the pull-in push arm 16 to rotate around the pull-in push arm pin. The release arm 28 is connected to the second pivot axis 17 via a release arm pin, thereby saving space and making the structure more compact. The pull-in arm pin is provided at the third pivot axis 19 and is connected to the pull-in push arm 16, thereby allowing the pull-in arm 22 to rotate around the pull-in arm pin.

[0058] Optionally, the engaging push arm pin and the disengaging arm pin can be integrated into the same pin structure.

[0059] As shown in Figures 4-7, in some embodiments, the hood lock 100 further includes an engagement drive mechanism that can drive the engagement push arm 16 to rotate the engagement push arm 16 in a second direction, where the second direction is counterclockwise as shown in Figures 2-7. When the engagement push arm 16 rotates in the second direction, the engagement push arm 16 drives the engagement arm 22 to rotate in the first direction (i.e., clockwise as shown in Figures 2-7), and the engagement push arm 16 causes the release pin 21 to move along the limiting groove 25. By providing the engagement drive mechanism to drive the engagement push arm 16, the hood lock 100 can be electrically engaged, thereby reducing manpower and improving the convenience of locking the hood lock 100.

[0060] As shown in Figures 4-7, in some embodiments, the hood lock 100 further includes a pull cable 4, through which the pull cable 4 connects the pull drive mechanism and the pull push arm 16. This design can streamline the structure while improving the stability of the connection between the electric pull drive mechanism and the pull push arm 16. Optionally, the pull drive mechanism can be an electric pull drive motor.

[0061] As shown in Figure 4, in some embodiments, the locking arm 7 includes a locking arm body and a latching structure 13, which is connected to the locking arm body. The locking arm body is pivotally mounted to the mounting plate 1. The lock tongue 10 includes a lock tongue body and a latching structure 14, which is pivotally mounted to the mounting plate 1. The latching structure 14 is disposed on the lock tongue body and can engage or disengage with the latching structure 13. This allows the hood lock 100 to be locked and unlocked, simplifying the structure of the hood lock 100.

[0062] In some embodiments, the lock tongue 10 includes a lock tongue body and a lock tongue suction structure 23. The lock tongue body is pivotally mounted on the mounting plate 1. The lock tongue suction structure 23 is disposed on the lock tongue body. The suction arm 22 can be attracted to or separated from the lock tongue suction structure 23. Specifically, the suction arm suction structure 24 of the suction arm 22 can be attracted to or separated from the lock tongue suction structure 23. As shown in Figures 3 and 4, specifically, when the suction arm suction structure 24 is attracted to the lock tongue suction structure 23, the lock tongue 10 rotates under the push of the suction arm 22, and the lock tongue 10 can rotate counterclockwise until the tongue structure 14 and the locking structure 13 are locked. When the suction arm suction structure 24 and the lock tongue suction structure 23 are separated, the lock tongue 10 can rotate under the action of the lock tongue reset member 12, and the lock tongue 10 rotates clockwise to an unlocked position where the tongue structure 14 and the locking structure 13 are separated.

[0063] As shown in FIG. 4 , for example, the lock tongue 10 is mounted on the mounting plate 1 via a lock tongue pin 11 , and the lock tongue 10 can rotate around the axis of the lock tongue pin 11 .

[0064] As shown in Figures 3 and 4, in some embodiments, the tongue structure 14 includes a first tongue structure 141 and a second tongue structure 142, and the first tongue structure 141 and the second tongue structure 142 are arranged spaced apart along the rotation direction of the lock tongue 10. The front hood lock 100 has a semi-locked state and a fully locked state. When the front hood lock 100 has the semi-locked state, the locking structure 13 is locked with the second tongue structure 142; when the front hood lock 100 has the fully locked state, the locking structure 13 is locked with the first tongue structure 141. When the locking arm 7 and the lock tongue 10 are unlocked, as the locking arm 7 rotates clockwise, the lock tongue 10 rotates clockwise, and the locking structure 13 sequentially unlocks the first latch structure 141 and the second latch structure 142. When the suction arm 22 and the lock tongue 10 are attracted, as the suction arm 22 rotates clockwise, the lock tongue 10 rotates counterclockwise, and the locking structure 13 sequentially locks with the second latch structure 142 and the first latch structure 141. That is, the front hood lock 100 can be changed from the unlocked state to the semi-locked state, and then from the semi-locked state to the fully locked state. By providing the first latch structure 141 and the second latch structure 142, the multiple latch structures 14 can improve the reliability of the front hood lock 100, thereby improving the anti-theft performance and safety performance of the vehicle 200.

[0065] As shown in FIG4 , in some embodiments, the hood lock 100 further includes an unlocking drive mechanism, which is used to drive the locking arm 7 to rotate in a first direction (i.e., clockwise) to separate the latch structure 13 from the tongue structure 14. By providing an unlocking drive mechanism, the hood lock 100 can be electrically unlocked, reducing manpower and improving the convenience of unlocking. The hood lock 100 further includes an unlocking cable 3, through which the unlocking drive mechanism is connected to the locking arm 7. This design can thus streamline the structure while improving the stability of the connection between the electrolytic drive structure and the locking arm 7. Optionally, the unlocking drive mechanism is an electrolytic drive motor.

[0066] As shown in Figure 4 , for example, the unlocking cable 3 includes an unlocking cable structure 15, which connects the locking arm 7 and the unlocking cable 3, improving the stability of the connection. The unlocking cable structure 15 can be connected to the unlocking cable 3 and embedded in the locking arm 7. Optionally, the unlocking cable structure 15 can be configured as a straight segment or a ball head structure.

[0067] As shown in Figures 2-7, in some embodiments, the locking arm 7 is pre-tightened and fixed to the mounting plate 1 by the locking arm spring 9, the suction arm 22 is pre-tightened and fixed to the suction push arm 16 by the suction arm spring 20, the suction push arm 16 is pre-tightened and fixed to the mounting plate 1 by the suction push arm spring 18, the control arm 27 is pre-tightened and fixed to the mounting plate 1 by the control arm spring 26, and the release arm 28 is pre-tightened and fixed to the mounting plate 1 by the release arm spring 30. As a result, the locking arm 7 can automatically return to the locked position under the action of the locking arm spring 9, thereby fixing the locking arm 7 in the locked state and improving the locking stability. The same applies to the suction arm spring 20, the suction push arm spring 18, the control arm spring 26, and the release arm spring 30.

[0068] As shown in Figures 2 to 7, for example, the locking arm spring 9 can be provided on the locking arm pin, the engaging arm spring 20 can be provided on the engaging arm pin, the engaging push arm spring 18 can be provided on the engaging push arm pin, the control arm spring 26 can be provided on the control arm pin, and the disengaging arm spring 30 can be provided on the disengaging arm pin.

[0069] In some embodiments, the hood lock 100 further includes a cable 2 connected to a control arm 27 and configured to pull the control arm 27 for rotation. The cable 2 is connected to an unlocking arm, and the cable 2 can pull the unlocking arm, causing it to rotate. This allows the unlocking arm to separate the engaging structure from the lock tongue 10, and the unlocking arm to separate the locking arm 7 from the lock tongue 10. The lock tongue 10 can then rotate under the action of the lock tongue reset member 12, rotating to an unlocked position for emergency unlocking. The provision of the cable 2 improves the convenience of pulling the control arm 27.

[0070] It should be noted that the beneficial effects of this application also lie in the following: 1. A control arm 27, a disengagement arm 28, a guide pin 29, and a guide slot 33 are provided to interrupt the engagement process. The control arm 17 is structurally designed to drive the locking arm 7 and the control arm 27 to move clockwise together. The guide pin 29 is inserted into the guide slot 33, allowing the guide pin 29 to slide within the guide slot 33, thereby driving the disengagement arm 28 to move clockwise, and then driving the engagement arm 22 to rotate clockwise, so that the engagement arm 22 is separated from the lock tongue 10, thereby achieving the purpose of interrupting the engagement process. This invention has a compact and streamlined structure. By implementing functions such as electric unlocking, electric engagement, and mechanical emergency unlocking, it greatly improves the functions integrated into the front hood lock 100. 2. The locking arm 7 is configured to be integrated with the cable 2 and the unlocking cable 3. This application implements both manual unlocking and electric unlocking functions through the locking arm 7. 3. A slot is provided on the fixed plate 1 to match the movement trajectory of the release pin 21. The slot cooperates with the release pin 21 to limit the movement range of the suction arm 22, thereby improving the reliability of the suction module.

[0071] 1 to 8 , a front hood lock 100 according to a specific embodiment of the present application will be described below.

[0072] The front hood lock 100 includes a mounting plate 1 , a fixing plate 6 , an unlocking cable 3 , a closing cable 4 and a cable 2 .

[0073] The pull cable 4 is installed inside the front cabin of the vehicle body through the mounting plate 1. As shown in Figures 1 and 4, the locking arm pin is riveted to the first pivot shaft 8 of the mounting plate 1 by riveting. The locking tongue pin 11 is riveted on the mounting plate 1. The locking arm 7 is fixed by the shoulder of the locking arm pin. The locking tongue 10 is fixed by the shoulder of the locking tongue pin 11. The locking arm spring 9 pre-tightens the locking arm 7. The locking tongue spring 12 pre-tightens the locking tongue 10.

[0074] When the front hood lock 100 needs to be electrically unlocked, the electrolytic drive structure moves to the left by pulling the unlocking cable 3, and the unlocking cable 3 and the locking arm 7 are fixed by the unlocking cable structure 15. The unlocking cable 3 drives the locking arm 7 to rotate clockwise, that is, the locking structure 13 rotates clockwise. When it rotates to a certain angle, the locking structure 13 and the tongue structure 14 are disengaged, and the lock tongue 10 rotates clockwise to the unlocking position under the action of the lock tongue reset member 12, thereby completing the electric unlocking function.

[0075] The electric engagement of the hood lock 100 is shown in Figures 4, 5, and 6. An engagement structure is added to the previously described electric unlocking structure. As shown in Figures 4 and 5, the engagement push arm pin is riveted to the second pivot axis 17 of the mounting plate 1. The engagement push arm 16 is secured via the engagement push arm pin shoulder. The engagement push arm 16 and the engagement arm 22 are riveted together via the engagement arm pin, which is located at the third pivot axis 19. The engagement push arm spring 18 pre-tightens the engagement push arm 16, while the engagement arm spring 20 pre-tightens the engagement arm 22. The release pin 21 is pre-tightened against the limit slot 25 of the fixed plate 6 by the engagement arm spring 20.

[0076] When electric suction is required, as shown in Figures 5 and 6, the suction drive mechanism pulls the suction cable 4 to make the suction push arm 16 move counterclockwise, and drives the suction arm 22 to move upward through the suction arm pin located on the third pivot shaft 19. Figure 6 shows the movement to the initial engagement position. Continue to pull the suction cable 4 to make the suction arm 22 continue to move upward along the limit groove 25 (fixed plate 6), and the lock tongue suction structure 23 and the suction arm suction structure 24 abut, so that the lock tongue 10 rotates counterclockwise until locking is completed, completing the electric suction function.

[0077] When the front cabin lock 100 needs to be opened urgently, as shown in Figures 6 and 7, an electric suction emergency disengagement structure is added to the aforementioned electric unlocking and electric suction structure. As shown in Figure 7, the control arm 27 is fixed by the shoulder of the locking arm pin, and the control arm 7 is also installed at the first pivot shaft 8, and the locking arm pin is riveted to the fixed plate 6. One end of the guide pin 29 is fixed to the control arm 27 by riveting, and the other end of the guide pin 29 is inserted into the guide groove 33, so that the guide pin 29 can slide in the guide groove 33. The disengagement arm 28 is fixed by the shoulder of the suction push arm pin, and the suction push arm pin is set at the second pivot shaft 17, and the suction push arm pin is riveted to the fixed plate 6. The control arm spring 26 pre-tightens the control arm 27, and the disengagement arm spring 30 pre-tightens the disengagement arm 28.

[0078] The cable 2 is fixed by an emergency release cable structure 32, and the control arm 27 is required to be on the right side of the locking arm 7 at the emergency release cable structure 32. Such an arrangement can achieve: when mechanical unlocking or emergency release is performed, the control arm 27 drives the locking arm 7 to move, and when electrical unlocking is performed, only the unlocking cable 3 drives the locking arm 7 to move while the control arm 27 does not move.

[0079] When an abnormality occurs during the electric suction process, for example, the suction arm 22 cannot return to its position, such as the position shown in Figure 6, the cable 2 is pulled to make the locking arm 7 and the control arm 27 move clockwise together, driving the guide pin 29 to slide in the guide groove 33, thereby driving the disengagement arm 28 to move clockwise. The disengagement arm 28 moves clockwise so that the disengagement arm disengagement structure 31 on the disengagement arm 28 pushes the disengagement pin 21 to the right to move right, thereby causing the suction arm 22 to rotate clockwise. When it rotates to a certain angle, the suction arm suction structure 24 engages and separates with the lock tongue suction structure 23, thereby allowing the lock tongue 10 to move, that is, the suction arm 22 is disengaged, completing the emergency disengagement function of the electric suction.

[0080] As shown in FIG8 , a vehicle 200 according to an embodiment of the present application includes a hood lock 100 according to an embodiment of the present application. By providing the hood lock 100, the hood can be locked in the closed position, thereby preventing the hood from lifting while the vehicle 200 is in motion. This improves the safety of the vehicle 200 while in motion. Furthermore, the hood being locked in the closed position also serves as a theft deterrent. When emergency unlocking is required, the cable 2 can be pulled to activate the unlocking arm, which pushes apart the engaging arm 22 and the locking arm 7. The lock tongue 10 returns to the unlocked position, allowing the hood to be opened, thereby increasing the reliability and safety of the hood lock 100. The hood lock 100 of the present application can achieve emergency unlocking in the event that the hood lock 100 cannot be unlocked due to a malfunction of the engaging arm 22, thereby improving the reliability of the hood lock 100. Furthermore, the hood lock 100 of the present application has a simple structure and is easy to manufacture and assemble.

[0081] In the description of this application, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0082] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0083] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0084] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A front hood lock (100), wherein, Comprising: A mounting plate (1); A locking tongue (10), a locking arm (7), a suction structure, and an unlocking arm. The locking tongue (10), the locking arm (7), the suction structure, and the unlocking arm are pivotally mounted on the mounting plate (1), and the unlocking arm pushes the suction structure and the locking arm (7) to separate from the locking tongue (10).

2. The front hood lock (100) according to claim 1, wherein, The unlocking arm includes a control arm (27) and a disengaging arm (28). The control arm (27) and the disengaging arm (28) are pivotally mounted on the mounting plate (1); When the control arm (27) rotates in a first direction, it drives the disengaging arm (28) and the locking arm (7) to rotate in the first direction, so that the disengaging arm (28) pushes the suction structure to separate from the locking tongue (10), and the locking arm (7) separates from the locking tongue (10).

3. The front hood lock (100) according to claim 2, wherein, The locking arm (7) and the control arm (27) are pivotally connected to the mounting plate (1) at a first pivot shaft (8), and the locking arm (7) is located on the unlocking path of the control arm (27), so that when the control arm (27) rotates in the first direction, the control arm (27) can drive the locking arm (7) to rotate in the first direction.

4. The front hood lock (100) according to claim 2 or 3, wherein, A guiding groove (33) is provided on the disengaging arm (28), and a guiding pin (29) is provided on the control arm (27). The guiding pin (29) is arranged in the guiding groove (33), and the guiding pin (29) can move along the groove wall of the guiding groove (33).

5. The front hood lock (100) according to claim 4, wherein, The suction structure includes a suction arm (22) and a suction push arm (16). The disengaging arm (28) and the suction push arm (16) are pivotally connected to the mounting plate (1) at a second pivot shaft (17). One end of the suction arm (22) is pivotally connected to the suction push arm (16), and a disengaging pin (21) is provided at the other end of the suction arm (22). When the control arm (27) drives the disengaging arm (28) to rotate through the guiding pin (29), the disengaging arm (28) can push the disengaging pin (21) to move along the limiting groove (25).

6. The front hood lock (100) according to claim 5, wherein, The front hood lock (100) further includes a suction driving mechanism for driving the suction push arm (16) to rotate in a second direction. When the suction push arm (16) rotates in the second direction, it drives the suction arm (22) to rotate in the first direction and makes the disengaging pin (21) move along the limiting groove (25). The first direction is the clockwise direction, and the second direction is the counterclockwise direction.

7. The front hood lock (100) according to claim 5 or 6, wherein, The suction arm (22) is pre-tensioned and fixed on the suction push arm (16) through a suction arm spring (20). The suction push arm (16) is pre-tensioned and fixed on the mounting plate (1) through a suction push arm spring (18). The control arm (27) is pre-tensioned and fixed on the mounting plate (1) through a control arm spring (26). The disengaging arm (28) is pre-tensioned and fixed on the mounting plate (1) through a disengaging arm spring (30).

8. The front hood lock (100) according to any one of claims 1-7, wherein, The locking arm (7) includes a locking arm body and a locking structure (13) connected to the locking arm body. The locking arm body is pivotally mounted on the mounting plate (1). The locking tongue (10) includes a locking tongue body and a locking tab structure (14). The locking tongue body is pivotally mounted on the mounting plate (1). The locking tab structure (14) is provided on the locking tongue body and is adapted to be locked or separated from the locking structure (13).

9. The front hood lock (100) according to claim 8, wherein, The locking tab structure (14) includes a first locking tab structure (141) and a second locking tab structure (142). The first locking tab structure (141) and the second locking tab structure (142) are arranged at intervals along the rotation direction of the locking tongue (10). The front hood lock (100) has a semi-locked state and a fully-locked state. When the front hood lock (100) is in the semi-locked state, the locking structure (13) is locked with the second locking tab structure (142). When the front hood lock (100) is in the fully-locked state, the locking structure (13) is locked with the first locking tab structure (141).

10. The front hood lock (100) according to claim 8 or 9, wherein, The front hood lock (100) further includes: An unlocking drive mechanism for driving the locking arm (7) to rotate in a first direction to separate the locking structure (13) from the locking tab structure (14); An unlocking cable (3), and the unlocking drive mechanism is connected to the locking arm (7) through the unlocking cable (3).

11. The front hood lock (100) according to any one of claims 2-7, wherein, The front hood lock (100) further includes a cable (2) connected to the control arm (27), and the cable (2) is used to pull the control arm (27) to rotate.

12. A vehicle (200), wherein, Including the front hood lock (100) according to any one of claims 1-11.

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