A front cover lock with self-closing and interruption functions

Abstract

This invention relates to the field of automotive parts technology, specifically a hood lock with self-priming and interruption functions. It includes a ratchet, a pawl, a self-priming module, and an interruption module. The ratchet and pawl cooperate to switch the hood lock between fully open, half-locked, and fully locked states. The self-priming module includes a rotating rod and a push rod with self-rotating force, which switches the hood lock from a half-locked state to a fully locked state. The interruption module includes an unlocking component with self-rotating force. The interruption module's action causes the hood lock to switch to an unlocking state. Simultaneously, the unlocking component rotates, and the second actuating end acts on the push rod of the self-priming module, causing the push rod to disengage from the fourth locking block, thereby interrupting the locking action of the self-priming module. This solves the technical problem in existing hood locks where the unlocking module cannot interrupt the self-priming module.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to a front cover lock with self-closing and interruption functions. Background Technology

[0002] A car hood lock typically refers to a device used to lock the engine hood (also known as the engine cover or hood) of a car. This lock is designed to ensure the hood remains securely closed while the vehicle is in motion, preventing accidental opening and potential safety hazards. Meanwhile, electric vehicles, lacking an engine and possessing ample space in the front compartment, are increasingly adopting front luggage compartments. Therefore, it is necessary to propose a locking mechanism that can automatically engage and disengage, while also allowing for manual intervention to unlock and deactivate it. Summary of the Invention

[0003] In order to solve the technical problem that the unlocking module of the front cover lock in the prior art cannot interrupt the self-priming module, this application proposes a front cover lock with self-priming and interruption functions, which solves the above-mentioned technical problem.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] This invention provides a front cover lock with self-locking and interruption functions, comprising: a ratchet and a pawl, the ratchet and pawl cooperating to switch the front cover lock to fully open, half-locked, and fully locked states. The ratchet has a first locking block, a second locking block, a third locking block, and a fourth locking block arranged sequentially along its rotation direction for unlocking. The pawl has a first pawl hook and a second pawl hook arranged along its rotation direction. When the first locking block is locked by the first pawl hook, the front cover lock is in the fully locked state. After the first locking block disengages from the first pawl hook, the third locking block is engaged with the ratchet's rotation. When the second pawl blocks, the ratchet resets, the second locking block is locked by the first pawl, and the front cover lock switches from a fully locked state to a half-locked state. When the ratchet rotates to the unlock limit position, the front cover lock is in a fully open state. The self-priming module includes a rotating rod and a push rod with rotational force. The first end of the rotating rod is pulled by a first pull rod, and the second end of the rotating rod is hinged to the force-bearing end of the push rod. The pushing end of the push rod cooperates with the fourth locking block. When the front cover lock is in a half-locked state, pulling the first pull rod causes the rotating rod to overcome the rotational force and rotate. With a slight movement, the rotating rod drives the push rod to overcome its own rotational force and push the fourth locking block of the ratchet. The ratchet, pushed in this way, overcomes its own rotational force to unlock and rotates in the opposite direction. During this rotation, the first locking block of the ratchet pushes open the first pawl hook of the pawl until the first locking block of the ratchet is locked by the first pawl hook. The front cover lock switches from a half-locked state to a fully locked state, and the self-priming module resets. The interrupting module includes an unlocking component with its own rotational force. The unlocking component is sequentially configured with a first working end, a second working end, and... The pulling end is pulled by the second pull rod to make the unlocking member rotate against its own rotational force. After the unlocking member rotates, the first actuating end pushes the pawl to rotate in the opposite direction against its own rotational force in the locking direction, so that one of the latches in the current state of the ratchet disengages from the first pawl hook of the ratchet, thereby switching the front cover lock to a state in the unlocking direction. At the same time as the unlocking member rotates, the second actuating end acts on the push rod of the self-priming module, causing the push rod to disengage from the fourth latch, thereby interrupting the locking action of the self-priming module.

[0006] Furthermore, a triangular groove is formed on the fourth card block, and correspondingly, a triangular portion that fits into the triangular groove is formed on the pushing end of the push rod.

[0007] Furthermore, a force-bearing pin is formed on the pawl, and the force-bearing pin is pushed by the first actuating end.

[0008] Furthermore, a protrusion is formed on the second actuating end, and correspondingly, a recess is formed on the middle section of the push rod to cooperate with the protrusion.

[0009] Furthermore, the push rod is a long rod disposed below the bottom of the ratchet and pawl.

[0010] Furthermore, the rotational force of the ratchet, pawl, lever, push rod, and unlocking element is provided by torsion springs located at the respective component shafts.

[0011] Based on the above technical solution, the technical effects that this invention can achieve are as follows:

[0012] This application discloses a front cover lock with self-priming and interruption functions. A ratchet and pawl work together to switch between fully open, half-lock, and fully locked states. The self-priming module allows the front cover lock to switch from a half-locked to a fully locked state. Specifically, after the self-priming module's rotating rod is pulled by the first pull rod, the rotating rod drives the push rod hinged to it. The push rod pushes the ratchet, causing the first locking block of the ratchet to push open the first pawl hook until the first locking block is locked by the first pawl hook, thus switching the front cover lock from a half-locked to a fully locked state. The interruption module allows the front cover lock to switch to an unlocked state. For example, if the interruption module operates once, the front cover lock can switch from a fully locked to a half-locked state; if the interruption module operates again, the front cover lock can switch from a half-locked to a fully open state. The interruption module acts on the pawl through its first actuating end to push... The pawl is released, thus releasing its primary limit on the ratchet and unlocking the hood lock. More importantly, during unlocking, the second actuating end of the unlocking component pushes open the push rod, interrupting the locking action of the self-priming module. In summary, the hood lock of this application with self-priming and interruption functions can switch the hood lock from a half-locked state to a fully locked state through the self-priming module, and can also unlock the hood lock through the interruption module. Furthermore, the interruption module can also act on the push rod, a crucial actuator of the self-priming module, preventing the push rod from pushing the fourth locking block of the ratchet and interrupting the locking action of the self-priming module. In other words, the interruption module of this application can unlock under any circumstances, thereby ensuring vehicle safety and solving the technical problem in the prior art that the unlocking module of the hood lock cannot interrupt the self-priming module. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front cover lock in a half-locked state and the self-priming module not yet activated.

[0014] Figure 2 This is a schematic diagram showing the front cover lock in the fully locked state and the self-priming module activated.

[0015] Figure 3 This is a schematic diagram of the front cover lock of this application after it is interrupted by the interruption module while in a half-locked state.

[0016] Figure 4 This is a schematic diagram of the front cover lock of this application after it has been interrupted by the interruption module while it is in a fully locked state.

[0017] Figure 5 The diagram shows the front cover lock of this application in the fully open state.

[0018] Wherein: 1-Ratchet, 11-First locking block, 12-Second locking block, 13-Third locking block, 14-Fourth locking block, 141-Triangular groove; 2-Pawl, 21-First pawl hook, 22-Second pawl hook, 23-Force pin; 3-Self-priming module, 31-Rotating rod, 32-Push rod, 321-Notch, 322-Triangular part, 33-First pull rod; 4-Break-off module, 41-Unlocking component, 411-First acting end, 412-Second acting end, 4121-Protrusion, 413-Pull end, 42-Second pull rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0022] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0023] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0025] like Figure 1-5As shown, this application provides a front cover lock with self-priming and interruption functions, including a ratchet 1, a pawl 2, a self-priming module 3, and an interruption module 4. The ratchet 1 and pawl 2 cooperate to switch the front cover lock between fully open, half-locked, and fully locked states. The ratchet 1 is sequentially equipped with a first locking block 11, a second locking block 12, a third locking block 13, and a fourth locking block 14 along its rotation direction. The pawl 2 is equipped with a first pawl hook 21 and a second pawl hook 22 along its rotation direction. When the first locking block 11 is locked by the first pawl hook 21, the front cover lock is in a fully locked state. After the first locking block 11 disengages from the first pawl hook 21, as the ratchet 1 rotates, the ratchet 1 opens, closes, and opens; the second locking block 12 is locked, closes, and opens; the third locking block 13 is locked, closes, and opens; the fourth locking block 14 is locked, closes, and opens. The fifth locking block 14 is locked, closes, and opens. The sixth locking block 14 is locked, closes, and opens. The pawl 2 is equipped with a first pawl hook 21 and a second pawl hook 22 along its rotation direction. When the first locking block 11 is locked by the first pawl hook 21, the front cover lock is in a fully locked state. When the first locking block 11 disengages from the first pawl hook 21, the ratchet 1 opens, closes, and opens. The pawl 2 is equipped with a first pawl hook 21 and a second pawl hook 22. When the first locking block 11 is locked by the first pawl hook 21, the ratchet 1 opens, closes, and opens. The pawl 2 is equipped with a first pawl hook 22 and The third locking block 13 is blocked by the second pawl hook 22 of the pawl 2 before it is reset (the function of the third locking block 13 is to prevent the front cover lock from going directly from the fully locked state to the fully open state). The pawl 2 resets, the second locking block 12 is locked by the first pawl hook 21, and the front cover lock switches from the fully locked state to the half-locked state. When the ratchet 1 rotates to the unlock limit position, the front cover lock is in the fully open state. The self-priming module 3 includes a rotating rod 31 with self-rotation force and a push rod 32. The first end of the rotating rod 31 is pulled by the first pull rod 33, and the second end of the rotating rod 31 is hinged to the force-bearing end of the push rod 32. The pushing end of the push rod 32 cooperates with the fourth locking block 14, and the front cover lock is in the half-locked state. In the current state, pulling the first lever 33 causes the rotating rod 31 to rotate against its own rotation force. The rotated rod 31 then drives the push rod 32 to push the fourth locking block 14 of the ratchet 1 against its own rotation force. The ratchet 1, after being pushed, rotates in the opposite direction against its own rotation force to unlock. During the rotation, the first locking block 11 of the ratchet 1 pushes open the first pawl hook 21 of the pawl 2 until the first locking block 11 of the ratchet 1 is locked by the first pawl hook 21 of the pawl 2. The front cover lock switches from the half-lock state to the full-lock state, the self-priming module 3 resets, and the interrupting module 4 includes an unlocking component 41 with its own rotation force. The unlocking component 41 is arranged with the first working end 4 in sequence along the rotation direction. 11. The second action end 412 and the pull end 413 are pulled by the second pull rod 42 to make the unlocking member 41 rotate against the rotational force. After the unlocking member 41 rotates, the first action end 411 pushes the pawl 2 to rotate in the opposite direction against the rotational force of its own locking direction, so that a block of the ratchet 1 in the current state disengages from the first pawl hook 21 of the ratchet 1, thereby switching the front cover lock to a state in the unlocking direction. At the same time as the unlocking member 41 rotates, the second action end 412 acts on the push rod 32 of the self-priming module 3, causing the push rod 32 to disengage from the fourth block 14, thereby interrupting the locking action of the self-priming module 3.

[0026] The front cover lock of this application, which has self-priming and interruption functions, has a ratchet 1 with a lock hole that engages with the latch on the front cover. When the front cover lock is fully open, manually closing the front cover switches the front cover lock from the fully open state to the half-lock state. The front cover lock in the half-lock state can switch from the half-lock to the fully locked state through the self-priming module 3. The unlocking of the front cover lock is achieved through the interruption module 4. Specifically, when the front cover lock is in the fully locked state, the pulling end 413 is pulled by the second pull rod 42, and the unlocking part 41 rotates, so that the first action end 411 acts on the pawl 2. The pawl 2 rotates in the opposite direction against the rotational force, so that the first pawl hook 21 releases the restriction on the first locking block 11. The ratchet 1 rotates under the action of the rotational force, so that the first locking block 11, which has been released from the restriction, rotates out of the first pawl hook 2. Within the restricted range of 1, the unlocking component 41 resets, the second locking block 12 is locked by the first pawl 21, and the front cover lock switches from a fully locked state to a half-locked state. The unlocking component 41 is pulled again by the second pull rod 42, and the first action end 411 acts on the pawl 2 again, causing the first pawl 2 to release the restriction on the second locking block 12. The unlocking component 41 resets, and the first pawl 21 locks the third locking block 13. The front cover lock switches from a half-locked state to a fully open state. More importantly, during the unlocking process of the interrupt module 4, the second action end 412 of the unlocking component 41 acts on the push rod 32, releasing the push rod 32 from the action of the fourth locking block 14, interrupting the locking action of the self-priming module 3, and ensuring that the front cover lock can be opened without being affected under any circumstances.

[0027] In one specific embodiment of the present invention, a triangular groove 141 is formed on the fourth locking block 14, and correspondingly, a triangular portion 322 that fits into the triangular groove 141 is formed on the pushing end of the push rod 32, so as to better fit the push rod 32 with the fourth locking block 14.

[0028] In one specific embodiment of the present invention, a force-receiving pin 23 is formed on the pawl 2, and the force-receiving pin 23 is pushed by the first working end 411 to facilitate the pawl 2 being pushed by the unlocking member 41.

[0029] In one specific embodiment of the present invention, a protrusion 4121 is formed on the second working end 412, and correspondingly, a recess 321 that mates with the protrusion 4121 is formed on the middle section of the push rod 32.

[0030] Furthermore, push rod 32 is a long rod positioned below the bottom of ratchet 1 and pawl 2.

[0031] In one specific embodiment of the invention, the rotational force of the ratchet 1, pawl 2, rotating rod 31, push rod 32 and unlocking member 41 is provided by torsion springs disposed at the shafts of the respective components.

[0032] It should be understood that the specific embodiments described above are for illustrative purposes only and are not intended to limit the scope of the invention. Obvious variations or modifications derived from the spirit of the invention are still within the protection scope of the invention.

Claims

1. A front cover lock having a self-suction and break function, characterized in that, The application relates to a front cover lock, which comprises a ratchet wheel (1) and a pawl (2) which cooperate to switch the full opening, half locking and full locking states of the front cover lock, wherein the ratchet wheel (1) is provided with a first clamping block (11), a second clamping block (12), a third clamping block (13) and a fourth clamping block (14) in sequence along the self-rotating direction of the ratchet wheel (1), the pawl (2) is provided with a first hook (21) and a second hook (22) along the rotating direction, when the first clamping block (11) is locked by the first hook (21), the front cover lock is in the full locking state, after the first clamping block (11) is out of the first hook (21), along with the self-rotation of the ratchet wheel (1), the third clamping block (13) is blocked by the second hook (22), the pawl (2) is reset, the second clamping block (12) is locked by the first hook (21), the front cover lock is switched from the full locking state to the half locking state, when the ratchet wheel (1) rotates to the limit position of the unlocking state, the front cover lock is in the full opening state. The self-suction module (3) comprises a rotating rod (31) with self-rotation force and a push rod (32), the first end of the rotating rod (31) is pulled by a first pull rod (33), the second end of the rotating rod (31) is hinged with the force receiving end of the push rod (32), the pushing end of the push rod (32) cooperates with the fourth clamping block (14), when the front cover lock is in the half locking state, the rotating rod (31) is rotated once by overcoming the self-rotation force through pulling the first pull rod (33), the rotating rod (31) drives the push rod (32) to push the fourth clamping block (14) of the ratchet wheel (1) by overcoming the self-rotation force, the ratchet wheel (1) is reversely rotated by overcoming the self-rotation force of the unlocking state, in the rotating process, the first clamping block (11) of the ratchet wheel (1) pushes away the first hook (21) of the pawl (2), until the first clamping block (11) of the ratchet wheel (1) is locked by the first hook (21) of the pawl (2), the front cover lock is switched from the half locking state to the full locking state, and the self-suction module (3) is reset. The breaking module (4) comprises an unlocking part (41) with self-rotation force, the unlocking part (41) is provided with a first acting end (411), a second acting end (412) and a pulling end (413) in sequence along the rotating direction, the pulling end (413) is pulled once by a second pull rod (42) to make the unlocking part (41) rotate by overcoming the self-rotation force, after the unlocking part (41) rotates, the first acting end (411) drives the pawl (2) to reversely rotate by overcoming the self-rotation force of the self-locking direction, so that one clamping block in the current state of the ratchet wheel (1) is out of the first hook (21) of the ratchet wheel (1), thereby making the front cover lock switch one state in the unlocking direction, while the unlocking part (41) rotates, the second acting end (412) acts on the push rod (32) of the self-suction module (3), so that the push rod (32) is separated from the fourth clamping block (14), thereby breaking the self-locking action of the self-suction module (3). ​ 2. The front cover lock with self-suction and break-off function according to claim 1, characterized in that, The fourth clamping block (14) is provided with a triangular groove (141), and the pushing end of the push rod (32) is provided with a triangular part (322) matched with the triangular groove (141).

3. The front cover lock with self-suction and break-off function according to claim 1, characterized in that, The pawl (2) is provided with a force receiving pin (23), and the force receiving pin (23) is pushed by the first acting end (411).

4. The front cover lock having a self-suction and break function according to claim 1, characterized in that, The second acting end (412) is provided with a convex part (4121), and the middle section of the push rod (32) is provided with a notched part (321) matched with the convex part (4121).

5. The front cover lock with self-suction and break-off function according to claim 1, characterized in that, The push rod (32) is a long rod arranged below the bottom of the ratchet wheel (1) and the pawl (2).

6. The front cover lock with self-priming and breaking function according to claim 1, characterized in that, The self-rotation force of the ratchet wheel (1), the pawl (2), the rotating rod (31), the push rod (32) and the unlocking part (41) is provided by a torsion spring arranged at the rotating shaft of the corresponding part.

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