A hood lock for a vehicle
By integrating a lever, pawl, and hook lock on the same side of the car hood lock, and using a pull rope to drive the hook lock to rotate, single-stage unlocking of the hood is achieved, solving the problems of cumbersome and concealed traditional double unlocking, and improving the ease of operation and structural reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU JINDASEN AUTO PARTS CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional car hood locks have a dual-operation mode that is time-consuming and has limited operating space, which is especially inconvenient in rainy or snowy weather or in emergencies. The hidden secondary unlocking position can easily lead to misoperation.
A car hood lock was designed. By setting a first and a second pivot on the lock plate and connecting the lever and pawl to the hook lock, the pawl is driven by the pull rope to switch the hook lock between the locked and unlocked positions, realizing single-level unlocking. The lever, pawl and hook lock are integrated on the same side, with a compact structure. The pull rope can be wired to the cockpit for operation.
It achieves convenient operation of the hood lock, avoids the cumbersome and concealed problems of traditional double unlocking, improves the ease of operation and environmental adaptability, and reduces manufacturing complexity and parts cost.
Smart Images
Figure CN224591952U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive parts technology, and in particular to an automotive hood lock. Background Technology
[0002] Currently, when closing a car hood, a hood lock is usually used to lock the hood to ensure the stability of the hood closure.
[0003] In related technologies, when opening the hood, the user needs to pull a control handle from inside the car to initially unlock it, at which point the hood is in a semi-locked state. The user then needs to move to the front of the car and manually push a lever on the hood to fully open it. Afterward, the hood can be lifted to open completely. However, this dual-operation mode is not only time-consuming, but the secondary locking mechanism is also hidden (e.g., located below the front edge of the hood), requiring the user to bend down and search, which is particularly inconvenient in rainy, snowy, or emergency situations. For example, some models require pressing upwards or flicking horizontally on a hidden latch for secondary unlocking, which is difficult due to limited space and lack of clear indication, easily leading to misoperation. Utility Model Content
[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a car hood lock.
[0005] This application provides a car hood lock, comprising: A locking plate having a receiving groove extending through the top of the locking plate, the receiving groove being used to receive a hood locking ring; A hook lock, which is rotatably connected to one side of the lock plate; The actuating assembly includes a lever plate, a first rotating shaft, a second rotating shaft, and a pawl located on the same side of the locking plate. The first rotating shaft and the second rotating shaft are respectively disposed on both sides of the receiving groove and pass through the locking plate. One end of the lever plate and one end of the pawl are both sleeved on the first rotating shaft. The other end of the lever plate is used to connect with the pull rope. The other end of the pawl and the hook lock are sleeved on the second rotating shaft, and the pawl has a cavity facing the receiving groove. When the pull rope pulls the lever to rotate, the pawl drives the second shaft to rotate, thereby causing the hook lock to rotate and switch between a locked position and a released position, thereby locking or releasing the hood lock ring placed in the receiving groove.
[0006] In one possible implementation, the hook lock has a limiting portion extending in a direction parallel to the lock plate, the width of the limiting portion being greater than the width of the receiving groove.
[0007] In one possible implementation, a first reset elastic element is further included, one end of which is connected to the locking plate and the other end of which is connected to the hook lock, so as to drive the hook lock to reset from the loose position to the locked position.
[0008] In one possible implementation, the hook lock has a connecting portion extending in a direction perpendicular to the lock plate, and the connecting portion has a groove; wherein, one end of the first reset elastic member is hooked in the groove, and the other end is hooked to the side of the lock plate.
[0009] In one possible implementation, a second reset elastic element is also included. One end of the lever plate for connecting the pull rope has a hook portion with a through hole. One end of the second reset elastic element is hooked into the through hole, and the other end is hooked into the other side of the lock plate.
[0010] In one possible implementation, the lever plate has an extension at one end for connecting the pull rope, which extends in a direction perpendicular to the locking plate, and one end of the pull rope is wound around the extension.
[0011] In one possible implementation, the portion of the first rotating shaft that passes through the lever plate has a first annular groove, and the portion of the second rotating shaft that passes through the hook lock has a second annular groove. When the two ends of the pawl are fitted onto the first rotating shaft and the second rotating shaft, the groove wall of the first annular groove abuts against the surface of the pawl, and the groove wall of the second annular groove abuts against the surface of the pawl.
[0012] In one possible implementation, both sides of the locking plate have connecting ears extending in a direction parallel to the locking plate. The connecting ears have fixing holes, and locking members are inserted into the fixing holes to fix the locking plate to the vehicle body.
[0013] The technical solutions provided in this application have the following advantages compared with the prior art: The hood lock features a first and second rotating shaft located on either side of a receiving slot on the locking plate. One end of a lever and one end of a pawl are coaxially fitted onto the first rotating shaft, while the other end of the pawl is fitted onto the hook lock on the second rotating shaft. This allows the pawl to drive the second rotating shaft via rigid transmission when the lever is pulled by a rope, ensuring synchronized action of the hook lock and unlocking the hood. In other words, this car hood lock allows the pull rope to extend along the vehicle's internal wiring to the driver's cabin, with the user's operation point inside the vehicle, enabling unlocking without touching the hood. This solves the problems of cumbersome and concealed traditional dual-unlocking mechanisms, significantly improving ease of operation, environmental adaptability, and structural reliability. Furthermore, integrating the lever, pawl, and hook lock onto the same side of the locking plate results in a compact structure and clear component layout, reducing the need for independent lever structures in traditional two-stage locks and lowering manufacturing complexity and component costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a car hood lock according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram of a car hood lock from another perspective according to an embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of a ratchet, a first rotating shaft, and a second rotating shaft in a car hood lock according to an embodiment of the present invention.
[0015] Icon labels: 10. Locking plate; 20. Hook lock; 21. Limiting part; 22. Connecting part; 22a. Groove; 30. Actuating assembly; 31. Actuating plate; 311. Hook part; 311a. Through hole; 312. Extension part; 32. First rotating shaft; 322a. First annular groove; 33. Second rotating shaft; 33a. Second annular groove; 34. Pawl; 40. First reset elastic element; 50. Second reset elastic element; 60. Connecting ear; 70. Locking element. Detailed Implementation
[0016] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.
[0017] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0018] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0019] The technical terms used in the embodiments of this application are explained and described below.
[0020] The locked position indicates that the hook lock 20 restricts the hood lock ring placed in the receiving groove so that the hood lock ring cannot extend out of the receiving groove. At this time, the hook lock 20 and the receiving groove are in a relatively aligned position.
[0021] The detached position indicates that the hook lock 20 is released from the restriction of the hood lock ring in the receiving groove, so that the hood lock ring can extend out of the receiving groove. At this time, the hook lock 20 and the receiving groove are in a misaligned position.
[0022] like Figures 1 to 3As shown in the figure, an embodiment of the present invention provides a car hood lock, which includes a lock plate 10, a hook lock 20, and a toggle assembly 30. The lock plate 10 has a receiving groove that passes through the top of the lock plate 10 and is used to receive the hood lock ring. The hook lock 20 is rotatably connected to one side of the lock plate 10. The toggle assembly 30 includes a toggle plate, a first rotating shaft 32, a second rotating shaft 33, and a pawl 34 located on the same side of the lock plate 10. The first rotating shaft 32 and the second rotating shaft 33 are respectively located on both sides of the receiving groove and pass through the lock plate 10. One end of the toggle plate and one end of the pawl 34 are both sleeved on the first rotating shaft 32. The other end of the toggle plate is used to connect to the pull rope. The other end of the pawl 34 and the hook lock 20 are sleeved on the second rotating shaft 33, and the pawl 34 has a cavity directly opposite the receiving groove.
[0023] When the pull rope pulls the lever to rotate, the pawl 34 drives the second rotating shaft 33 to rotate, thereby causing the hook lock 20 to rotate and switch between the locked and released positions, thus locking or releasing the engine hood lock ring placed in the receiving groove.
[0024] In practical applications, the lever can be pulled directly from inside the vehicle using a pull cord, causing the lever to rotate around the first pivot 32. This, in turn, causes the pawl 34 to drive the second pivot 33 to rotate. Since the hook lock 20 is sleeved on the second pivot 33, the hook lock 20 is driven to swing. When the hook lock 20 switches from the locked position to the released position, the hook lock 20 and the receiving groove are in a misaligned position. At this time, the hood lock ring placed in the receiving groove can be pulled upward, thereby opening the hood. When the hood is closed, the hood lock ring continuously approaches the receiving groove until the hood lock ring pushes the hook lock 20 away and is placed in the receiving groove. Then the hook lock 20 returns to the locked position to lock the hood lock ring.
[0025] The locking plate 10 is equipped with a first rotating shaft 32 and a second rotating shaft 33 located on both sides of the receiving groove. One end of the lever and one end of the pawl 34 are coaxially fitted onto the first rotating shaft 32, and the other end of the pawl 34 is fitted onto the hook lock 20 on the second rotating shaft 33. When the lever is pulled by a rope, the pawl 34 drives the second rotating shaft 33 to rotate through rigid transmission, ensuring that the hook lock 20 moves synchronously, thereby unlocking the hood. In other words, this car hood lock can extend along the internal wiring of the vehicle body to the driver's cabin using a pull rope. The user's operation point is inside the vehicle, and unlocking can be completed without touching the hood. This solves the problems of cumbersome and concealed traditional dual unlocking. It has achieved significant improvements in terms of ease of operation, environmental adaptability, and structural reliability. In addition, integrating the lever, pawl 34, and hook lock 20 on the same side of the locking plate 10 results in a compact structure and clear component layout, reducing the independent lever structure of traditional two-stage locks, and lowering manufacturing complexity and component costs.
[0026] In one possible implementation, the hook lock 20 has a limiting portion 21 extending in a direction parallel to the lock plate 10, the width of which is greater than the width of the receiving groove. That is, when the hook lock 20 is rotated to the locked position, the limiting portion 21 exactly covers the upper opening of the receiving groove. Since the width of the limiting portion 21 is greater than the width of the receiving groove, the vertical movement of the hood lock ring is blocked by the limiting portion 21, thereby integrating the dual unlocking operation into a single-stage pull rope drive, which can complete the unlocking in a single operation.
[0027] In one possible implementation, a first reset elastic element 40 is also included. One end of the first reset elastic element 40 is connected to the locking plate 10, and the other end is connected to the hook lock 20 to drive the hook lock 20 to reset from the loose position to the locked position. That is, when the rope is loosened, under the elastic force of the first reset elastic element 40, the hook lock 20 is pulled from the loose position to the locked position, so that the user only needs to pull the pull rope inside the vehicle once to automatically complete the locking, without having to manually turn the secondary lock buckle as in the traditional solution.
[0028] Specifically, the hook lock 20 extends with a connecting portion 22 in a direction perpendicular to the lock plate 10, and the connecting portion 22 has a groove 22a. One end of the first reset elastic member 40 is hooked in the groove 22a, and the other end is hooked on the side of the lock plate 10.
[0029] In one possible implementation, a second reset elastic element 50 is also included. The end of the lever plate 31 used to connect the pull cord has a hook portion 311 with a through hole 311a. One end of the second reset elastic element 50 hooks into the through hole 311a, and the other end hooks into the other side of the lock plate 10. That is, when the user pulls the pull cord inside the vehicle, the lever plate 31 rotates around the first pivot 32, causing the hook lock 20 to rotate to the released position via the pawl 34. After the pull cord is released, the restoring force of the second reset elastic element 50 drives the lever plate 31 to rotate in the opposite direction, returning it to its initial position. This prevents the pull cord from becoming loose or jammed due to the lever plate 31 not resetting, ensuring that the pull cord can effectively drive the lever plate 31 to move during the next unlocking.
[0030] In one possible implementation, the end of the lever 31 for connecting the pull rope extends in a direction perpendicular to the lock plate 10 and has an extension 312, with one end of the pull rope wound around the extension 312.
[0031] In one possible implementation, the portion of the first rotating shaft 32 that extends through the lever plate 31 has a first annular groove 322a, and the portion of the second rotating shaft 33 that extends through the hook lock 20 has a second annular groove 33a. When the two ends of the pawl 34 are fitted onto the first rotating shaft 32 and the second rotating shaft 33, the wall of the first annular groove 322a abuts against the surface of the pawl 34, and the wall of the second annular groove 33a abuts against the surface of the pawl 34. That is, by having the wall of the annular groove abut against the end face of the pawl 34, the radial force experienced by the pawl 34 during rotation can be evenly transmitted to the rotating shaft, avoiding eccentricity caused by axial movement.
[0032] In one possible implementation, both sides of the locking plate 10 have connecting ears 60 extending in a direction parallel to the locking plate 10. The connecting ears 60 have fixing holes, and locking members 70 are inserted into the fixing holes. The locking members 70 are used to fix the locking plate 10 to the vehicle body.
[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. A car hood lock, characterized in that, include: A locking plate having a receiving groove extending through the top of the locking plate, the receiving groove being used to receive a hood locking ring; A hook lock, which is rotatably connected to one side of the lock plate; The actuating assembly includes a lever plate, a first rotating shaft, a second rotating shaft, and a pawl located on the same side of the locking plate. The first rotating shaft and the second rotating shaft are respectively disposed on both sides of the receiving groove and pass through the locking plate. One end of the lever plate and one end of the pawl are both sleeved on the first rotating shaft. The other end of the lever plate is used to connect with the pull rope. The other end of the pawl and the hook lock are sleeved on the second rotating shaft, and the pawl has a cavity facing the receiving groove. When the pull rope pulls the lever to rotate, the pawl drives the second shaft to rotate, thereby causing the hook lock to rotate and switch between a locked position and a released position, thereby locking or releasing the hood lock ring placed in the receiving groove.
2. The car hood lock according to claim 1, characterized in that, The hook lock has a limiting portion extending in a direction parallel to the lock plate, and the width of the limiting portion is greater than the width of the receiving groove.
3. The car hood lock according to claim 1, characterized in that, It also includes a first reset elastic element, one end of which is connected to the locking plate and the other end of which is connected to the hook lock, so as to drive the hook lock to reset from the loose position to the locked position.
4. The car hood lock according to claim 3, characterized in that, The hook lock has a connecting portion extending in a direction perpendicular to the lock plate, and the connecting portion has a groove; wherein, one end of the first reset elastic member is hooked in the groove, and the other end is hooked to the side of the lock plate.
5. The car hood lock according to claim 3, characterized in that, It also includes a second reset elastic element. The end of the lever plate used to connect the pull rope has a hook portion with a through hole. One end of the second reset elastic element is hooked into the through hole, and the other end is hooked into the other side of the lock plate.
6. The car hood lock according to claim 1, characterized in that, The lever plate has an extension at one end for connecting the pull rope, which extends in a direction perpendicular to the locking plate, and one end of the pull rope is wound around the extension.
7. The car hood lock according to claim 1, characterized in that, The portion of the first rotating shaft that passes through the lever plate has a first annular groove, and the portion of the second rotating shaft that passes through the hook lock has a second annular groove; When the two ends of the pawl are fitted onto the first rotating shaft and the second rotating shaft, the groove wall of the first annular groove abuts against the surface of the pawl, and the groove wall of the second annular groove abuts against the surface of the pawl.
8. The car hood lock according to claim 1, characterized in that, Both sides of the lock plate have connecting ears extending in a direction parallel to the lock plate. The connecting ears have fixing holes, and locking members are inserted into the fixing holes. The locking members are used to fix the lock plate to the vehicle body.