Auxiliary lock mechanism of hood lock
By designing a fixed seat and hook structure in the front cover secondary lock, and equipped with a reset torsion spring and buffer block, the problem of noise in the prior art is solved, and the effect of noise reduction and improved user experience is achieved.
Patent Information
- Application Number
- CN202421533877.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-29
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-29
AI Technical Summary
During use, the existing front cover secondary lock will cause high noise due to the hard contact between the safety hook and the mounting seat, which will affect the user experience.
A hood lock secondary lock mechanism is designed, adopting a fixed seat and hook body structure, the top end of the hook body is hinged on the fixed seat, and is equipped with a reset torsion spring and a buffer block. Through the buffer block, soft contact and noise reduction are achieved.
It effectively reduces the noise generated during the flip of the hook body, improves the user experience of the front cover opening and closing process, and avoids excessive flip of the hook body through the setting of the limit block, achieving a dual limit effect.
Smart Images
Figure CN222797292U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of front hood locks, in particular to a hood lock secondary lock mechanism. Background Art
[0002] With the continuous development of the automobile industry, the market share of electric vehicles in China is constantly increasing, and people's requirements for electric vehicles are also constantly increasing. The front hood lock is an automobile part that ensures that the car engine hood is in a closed state without the user's permission, and provides an operable way to open the front hood when the user requires it to be opened. The front hood lock in the prior art includes two locks, a main lock and a secondary lock. After people open the main lock of the front hood, in order to avoid the risk of the front hood directly popping up, the front hood will be locked by the secondary lock. The front hood can only be opened after the secondary lock is manually unlocked, which improves the safety of use and has a double locking effect on the front hood.
[0003] The secondary lock of the front hood mainly includes a mounting base and a safety hook. The safety hook is hinged on the mounting base, and the mounting base is fixed on the front hood. The locking is achieved by hooking the lock hook on the main lock with the safety hook. When unlocking, the safety hook is manually pushed to release the hook with the lock hook to achieve unlocking. In actual use, the current secondary lock will have hard contact with the mounting base during the rotation of the safety hook, resulting in relatively loud noise, which affects the user experience. Utility Model Content
[0004] In order to further reduce noise during use and improve the user experience, the present application provides a hood lock sub-lock mechanism.
[0005] The present application provides a hood lock secondary lock mechanism, which adopts the following technical solution:
[0006] A hood lock secondary lock mechanism comprises a fixed seat and a hook body, the top end of the hook body is hinged on the fixed seat, a reset torsion spring for driving the hook body to rotate and reset is arranged at the hinge between the hook body and the fixed seat, the fixed seat has a clamping piece that penetrates into the hook body, one end of the reset torsion spring is connected to the clamping piece, and the other end is connected to the hook body, a buffer block is sleeved on the clamping piece, and the buffer block is used to abut the hook body.
[0007] Optionally, the middle portion of the hook body has a through slot and the bottom end forms a hook portion for hooking with the lock hook, and the hook portion is sleeved with a matching outer sleeve.
[0008] Optionally, the buffer block is a rubber block, and the outer sleeve is a plastic sleeve.
[0009] Optionally, the top of the hook body is hollowed out to form an installation cavity for installing a reset torsion spring, one side of the hook body is provided with a through groove for the clamping piece to pass through, and the other side is provided with a through hole for hooking the end of the reset torsion spring.
[0010] Optionally, a limiting block is convexly provided on the fixing seat, and a limiting groove for the limiting block to sink into is provided on the hook body, and the limiting block cooperates with the limiting groove to limit the rotation angle of the hook body.
[0011] Optionally, the top end of the hook body has a bent and outwardly protruding opening handle.
[0012] Optionally, both sides of the opening handle have outward-expanding sheaths.
[0013] Optionally, the end of the clamping member that penetrates into the hook body is provided with a clamping groove for the end of the reset torsion spring to be clamped into.
[0014] Optionally, the top end of the fixing seat has an outward-turned mounting portion, and a mounting hole is provided on the mounting portion.
[0015] Optionally, a mounting shaft connecting the fixing seat and the hook body is provided between the fixing seat and the hook body, and the reset torsion spring is sleeved on the mounting shaft.
[0016] In summary, the present application includes at least one of the following beneficial technical effects:
[0017] 1. By setting a buffer block on the clamping part, the buffer block contacts the inner wall of the through groove of the hook body during the hook body flipping process, which plays a buffering role and realizes soft contact, effectively reducing the noise generated during the hook body flipping process, achieving a good noise reduction effect, and effectively improving the user experience during the opening and closing process of the front hood;
[0018] 2. The setting of the buffer block and the limit block can achieve the double limit function, realize the travel limit of the hook body flip angle, avoid the excessive flipping of the hook body, and improve the use effect;
[0019] 3. The outer cover at the bottom of the hook body can play a good protective role and reduce the wear of the hook during use. The sound generated by the contact between the plastic outer cover and the lock hook is smaller, further achieving the purpose of noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural diagram of an embodiment of the present application from a rear perspective.
[0021] Figure 2 It is a structural diagram of an embodiment of the present application from a forward perspective.
[0022] Figure 3 It is a structural diagram of the top perspective of an embodiment of the present application.
[0023] Description of reference numerals:
[0024] 1. Fixing seat; 2. Hook body; 3. Mounting shaft; 4. Reset torsion spring; 5. Through slot; 6. Hook part; 7. Mounting cavity; 8. Snap-in piece; 9. Through slot; 10. Through hole; 11. Slot; 12. Buffer block; 13. Outer sleeve; 14. Opening handle; 15. Sheath; 16. Limit block; 17. Limit slot; 18. Mounting part; 19. Mounting hole. DETAILED DESCRIPTION
[0025] The following is combined with Figure 1-3 This application is described in further detail.
[0026] The embodiment of the present application discloses a hood lock secondary lock mechanism.
[0027] A hood lock secondary lock mechanism, such as Figure 1 and Figure 2 As shown, it includes a fixing seat 1 and a hook body 2, the top end of the hook body 2 is hinged on the fixing seat 1 by means of a mounting shaft 3, the mounting shaft 3 passes through the fixing seat 1 and the hook body 2, and a reset torsion spring 4 for driving the hook body 2 to rotate and reset is arranged at the hinge between the fixing seat 1 and the hook body 2, the reset torsion spring 4 is sleeved on the mounting shaft 3, one end of the reset torsion spring 4 is connected to the hook body 2, and the other end is connected to the fixing seat 1, a through groove 5 is opened in the middle of the hook body 2 and a hook portion 6 is formed at the bottom end of the hook body 2, the hook portion 6 is used to hook with the lock hook, in actual use, the fixing seat 1 is fixedly installed on the front hood, and the hook portion 6 at the bottom end of the hook body 2 is hooked with the lock hook to achieve locking, and when unlocking is required, the hook body 2 is manually driven to flip so that the hook portion 6 is unhooked.
[0028] like Figure 1 and Figure 2 As shown, the interior of the fixing seat 1 is hollowly arranged to form an installation cavity 7 for installing the reset torsion spring 4 and the installation shaft 3, a clamping piece 8 extends from one side of the fixing seat 1, a through groove 9 for the clamping piece 8 to penetrate is provided on one side of the hook body 2, and a through hole 10 for hooking and fixing one end of the reset torsion spring 4 is provided on the other side of the hook body 2. The clamping piece 8 penetrates into the hook body 2 to facilitate the hooking and fixing of the other end of the reset torsion spring 4, and to facilitate the installation of the reset torsion spring 4. The end of the clamping piece 8 penetrates into the hook body 2 is provided with a clamping groove 11 for clamping one end of the reset torsion spring 4, so as to improve the firmness of the connection of the end of the reset torsion spring 4.
[0029] like Figure 1 and Figure 2 As shown, a buffer block 12 is sleeved and fixed on the clamping member 8. The buffer block 12 is a rubber block. During the flipping process of the hook body 2, the buffer block 12 abuts against the inner wall of the through groove 9 on the hook body 2, so that soft contact is achieved during the flipping and opening and closing of the hook body 2, which effectively reduces the noise generated by the impact during use, thereby improving the user experience.
[0030] like Figure 1 and Figure 2As shown, a matching outer sleeve 13 is sleeved and fixed on the hook portion 6 at the bottom of the hook body 2. The outer sleeve 13 is a plastic sleeve, so that direct contact can be avoided when the hook body 2 is hooked with the lock hook on the front hood lock, and the situation in which the hook portion 6 is easily worn due to long-term use can be effectively avoided. In other embodiments, the outer sleeve 13 can be plug-fitted with the hook portion 6 by interference fit to achieve a detachable connection, which is convenient for replacing the outer sleeve 13. In addition, the contact between the outer sleeve 13 and the lock hook is not direct hard contact, which further reduces the noise generated during use.
[0031] like Figure 1 and Figure 2 As shown, the top of the hook body 2 is bent to have an opening handle 14 protruding from the fixing seat 1, and a sheath 15 is sleeved on the opening handle 14, and the sheath 15 covers the entire opening handle 14. The overall holding part of the opening handle 14 is large, which is convenient for people to hold. The design of the sheath 15 can prevent scratches on the hands, avoiding the situation where the hands are scratched by burrs during use. When in use, the person can hold the opening handle 14 to drive the hook body 2 to flip over to achieve the purpose of unlocking, thereby improving the convenience and comfort of use.
[0032] like Figure 1 and Figure 3 As shown, an inward-turned limit block 16 is provided on the top of the fixing seat 1, and a limit groove 17 for the limit block 16 to sink into is opened on the top wall of the hook body 2. The cooperation between the limit block 16 and the limit groove 17 can realize the travel limit of the flipping angle of the hook body 2 to avoid excessive flipping of the hook body 2. Combined with the design of the front buffer block 12, the purpose of double angle travel limit can be achieved, thereby improving the convenience of the flipping operation of the hook body 2.
[0033] like Figure 1 and Figure 2 As shown, the top of the fixing base 1 has a plurality of outward-turned mounting portions 18, each of which is provided with a through mounting hole 19. The mounting holes 19 facilitate the fixing base 1 to be fixedly mounted on the front hood, and the plurality of mounting holes 19 improve the mounting firmness of the fixing base 1.
[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A hood lock secondary lock mechanism, comprising a fixing seat (1) and a hook body (2), wherein the top end of the hook body (2) is hinged on the fixing seat (1), characterized in that: A return torsion spring (4) is provided at the hinged portion between the hook body (2) and the fixed seat (1) for driving the hook body (2) to rotate and return to its original position. The fixed seat (1) has a clamping piece (8) which penetrates into the hook body (2). One end of the return torsion spring (4) is connected to the clamping piece (8), and the other end is connected to the hook body (2). A buffer block (12) is sleeved on the clamping piece (8), and the buffer block (12) is used to abut against the hook body (2).
2. The hood lock secondary lock mechanism according to claim 1, characterized in that: The middle part of the hook body (2) has a through slot (5) running through it, and the bottom end forms a hook portion (6) for hooking with a lock hook, and the hook portion (6) is sleeved with a matching outer sleeve (13).
3. The hood lock secondary lock mechanism according to claim 2, characterized in that: The buffer block (12) is a rubber block, and the outer sleeve (13) is a plastic sleeve.
4. The hood lock secondary lock mechanism according to claim 1, characterized in that: The top end of the hook body (2) is hollowed out to form an installation cavity (7) for installing a reset torsion spring (4); one side of the hook body (2) is provided with a through slot (9) for a clamping member (8) to pass through; and the other side is provided with a through hole (10) for hooking the end of the reset torsion spring (4).
5. The hood lock secondary lock mechanism according to claim 1, characterized in that: A limiting block (16) is convexly provided on the fixing seat (1), and a limiting groove (17) is provided on the hook body (2) for the limiting block (16) to sink into, and the limiting block (16) cooperates with the limiting groove (17) to limit the rotation angle of the hook body (2).
6. The hood lock secondary lock mechanism according to claim 1, characterized in that: The top end of the hook body (2) is provided with a bent and outwardly protruding opening handle (14).
7. The hood lock secondary lock mechanism according to claim 6, characterized in that: The opening handle is outer-connected with a protective sheath (15).
8. The hood lock secondary lock mechanism according to claim 1, characterized in that: The end of the clamping piece (8) that penetrates into the hook body (2) is provided with a clamping groove (11) for the end of the return torsion spring (4) to be clamped into.
9. The hood lock secondary lock mechanism according to claim 1, characterized in that: The top end of the fixing seat (1) is provided with an outwardly turned mounting portion (18), and a mounting hole (19) is provided on the mounting portion (18).
10. The hood lock secondary lock mechanism according to claim 1, characterized in that: A mounting shaft (3) is provided between the fixing seat (1) and the hook body (2) to connect the two, and the reset torsion spring (4) is sleeved on the mounting shaft (3).