A new dual-pull hood lock for automobiles

By introducing a combination design of an open lock slot, a secondary positioning slot, an adjustment plate lock hole, and a control wheel lever into the hood lock, the problems of inconvenient installation and operation in the existing technology are solved, and precise and efficient double-pull operation is achieved, improving the stability and convenience of the hood lock.

CN224300618UActive Publication Date: 2026-05-29RUIAN HONGFU AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUIAN HONGFU AUTO PARTS CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing double-pull car hood locks suffer from misalignment and interference during installation and operation, lack of positioning groove linkage, and inability to be pulled and controlled twice, resulting in inconvenience in operation and poor adaptability.

Method used

The mounting plate features a lock head with an open locking groove and a secondary positioning groove. Combined with the lock hole on the adjustment plate and the lever of the control wheel, it achieves two-stage linkage control through double rows of notches. The guide plate and reset spring are installed together, and the annular limiting groove of the guide wheel prevents the pull rope from falling off.

Benefits of technology

It achieves precise and efficient hood lock operation, improves installation stability and convenience, avoids problems such as improper locking and falling off, and enhances the comfort and safety of operation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224300618U_ABST
    Figure CN224300618U_ABST
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Abstract

The utility model discloses a novel double -draws car engine cover lock, including the mounting panel, the one side surface of mounting panel is currently installed with the lock head, one side of lock head is equipped with the open lock groove, the inside one side of open lock groove is equipped with the secondary positioning slot, the other side of lock head is equipped with the adjusting plate, the one side surface of adjusting plate is equipped with the lock hole, the one side surface fixedly connected with the lock rod of mounting panel, the lock hole is connected with the surface of lock rod and slides, the one side of adjusting plate's outer surface is equipped with double -row gap, the one side surface rotatory mounting of mounting panel has the control wheel, the one side surface fixedly connected with the lever of control wheel, the one side surface fixedly connected with the connecting ring of adjusting plate, one end fixedly connected with the tension spring of connecting ring, one end fixedly connected with the fixed block of tension spring, can draw respectively to push the adjustment of twice, thereby carries out the linkage control, accurate and efficient, convenient and stable, benefit installation uses.
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Description

Technical Field

[0001] This utility model relates to the automotive field, and more specifically, to a novel double-pull car hood lock. Background Technology

[0002] With the continuous improvement of people's living standards and the rapid advancement of automotive technology, people's understanding of automobiles has become clearer. Automobiles have become an indispensable part of people's lives, and people's requirements for automobile safety, handling, and comfort are also increasing. However, the hood lock, as an important part of automobile components, has not changed much. For a long time, when people need to open the hood, they need to pull the operating handle under the driver's seat to put the hood in the secondary lock state, and then walk to the front of the car to reach for the secondary lock handle. Sometimes it is difficult to find the secondary lock handle at once, and both hands need to be used at the same time. Opening the hood is particularly troublesome and has poor operability, which often causes dissatisfaction among consumers.

[0003] The utility model patent with authorization announcement number CN212317700U provides a double-pull car hood lock, including a base plate, back plate, latch, latch shaft, latch spring, half-lock pawl, half-lock pawl shaft, full-lock pawl, full-lock pawl shaft, pawl spring, release lever, release lever, release linkage, pivot, reset spring, and return spring. Its advantages are: the double-pull car hood lock provided in this application has a double-pawl structure and signal indication function. The hood lock is opened by pulling the operating handle in the driver's cab twice, overcoming the shortcomings of traditional hood locks, greatly improving the comfort and convenience of operation, and is simple in structure, easy to operate, and safe and reliable.

[0004] The aforementioned disclosed structure uses a double pawl structure for control, which is not only unfavorable for alignment and installation but also prone to misalignment and interference. It lacks a positioning groove for linkage locking, making secondary pulling control inconvenient. Furthermore, it lacks a control wheel connecting lever, making it impossible to adjust and control by pulling twice, which affects control operation and has poor adaptability, and needs to be improved. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a novel double-pull car hood lock. The lock head on the mounting plate has an open locking groove and a secondary positioning groove, allowing for two adjustments to open and lock the lock in place. A lock hole on the adjustment plate connects to the locking rod, enabling combined positioning. Simultaneously, a control wheel connects to a lever, which, combined with double rows of notches, allows for two separate pulls to adjust the lock, thus achieving coordinated control. This design is precise, efficient, convenient, stable, and easy to install and use.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A novel double-pull car hood lock includes a mounting plate. A lock head is rotatably mounted on one side surface of the mounting plate. One side of the lock head has an open lock groove, and the inner side of the open lock groove has a secondary positioning groove. An adjustment plate is provided on the other side of the lock head. A lock hole is provided on one side surface of the adjustment plate. A lock rod is fixedly connected to one side surface of the mounting plate. The lock hole is slidably engaged with the surface of the lock rod. One side of the outer surface of the adjustment plate has a double row of notches. A control wheel is rotatably mounted on one side surface of the mounting plate. A lever is fixedly connected to one side surface of the control wheel. A connecting ring is fixedly connected to one side surface of the adjustment plate. A tension spring is fixedly connected to one end of the connecting ring. A fixing block is fixedly connected to one end of the tension spring. The fixing block is fixedly connected to one side surface of the mounting plate.

[0008] Furthermore, a mounting ring is fixedly connected to one side of the control wheel, and a pull rope is fixedly connected to one side of the mounting ring.

[0009] Furthermore, a guide plate is fixedly connected to one side surface of the mounting plate, and the guide plate is located on one end surface of the pull rope.

[0010] Furthermore, a return spring is fixedly connected to one side of the guide plate. The return spring is slidably sleeved on one end of the pull rope. The pull rope is connected through the mounting ring. Combined with the guide plate and the return spring, it can be installed in combination for pulling and adjustment. It can also be reset by the return spring. It can be pulled a second time for connection control, which is convenient, efficient and easy to install and use.

[0011] Furthermore, guide wheels are rotatably mounted on both ends of the guide plate, and the guide wheels are rotatably connected to both sides of the pull rope.

[0012] Furthermore, the surface of the guide wheel is provided with an annular limiting groove, which is rotatably connected to the surface of the pull rope.

[0013] Furthermore, the guide wheels are symmetrically distributed on both sides of the pull rope and located at the end of the reset spring. The guide wheels are equipped with annular limiting grooves, which can limit the pull rope to prevent it from separating and falling off, facilitate guiding and pulling, and make it convenient for installation and use.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution uses the lock head on the mounting plate to set an open lock groove and a secondary positioning groove, which can be adjusted twice to open and can be locked together. The lock hole is set on the adjustment plate to connect the lock rod, which can be combined for positioning. At the same time, the control wheel is connected to the lever, which, combined with the double row notches, can be pulled twice to push and adjust separately, thereby achieving linkage control. It is precise, efficient, convenient and stable, and easy to install and use.

[0016] (2) By connecting the pull rope with the installation ring and the reset spring with the guide plate, it can be installed in combination for pulling and adjustment, and can be reset with the reset spring. It can be pulled twice for connection control, which is convenient, efficient and easy to install and use.

[0017] (3) By setting an annular limiting groove through the guide wheel, the pull rope can be combined and limited to prevent separation and falling off, which is conducive to guiding and pulling, and convenient for installation and use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0020] Figure 3 This is a cross-sectional schematic diagram of the guide wheel connection of this utility model;

[0021] Figure 4 For the present utility model Figure 1 Enlarged view of point A where the middle adjustment plate and control wheel connect;

[0022] Figure 5 This is a partial structural diagram of the guide wheel and the pull rope connection of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1 Mounting plate, 11 Lock head, 12 Open lock groove, 13 Secondary positioning groove, 14 Adjusting plate, 15 Lock hole, 16 Lock rod, 17 Double row notch, 18 Control wheel, 19 Lever, 2 Connecting ring, 21 Tensioning spring, 22 Fixing block, 23 Mounting ring, 24 Pull rope, 25 Guide plate, 26 Return spring, 27 Guide wheel, 28 Annular limit groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 2 and Figure 4A novel double-pull car hood lock includes a mounting plate 1. A lock head 11 is rotatably mounted on one side of the mounting plate 1. One side of the lock head 11 has an open locking groove 12. A secondary positioning groove 13 is provided inside the open locking groove 12. A locking ring of the hood can be engaged into the open locking groove 12 for locking and positioning. Upon first opening, the locking ring can be ejected into the secondary positioning groove 13, providing auxiliary positioning and supporting and limiting the lock head 11, thus locking them together to prevent direct release and lock head 11 reset, improving safety and stability, and facilitating combined use. The other side of the lock head 11 has an adjusting plate 14. One side of the adjusting plate 14 has a lock hole 15. A locking rod 16 is fixedly connected to one side of the mounting plate 1. The lock hole 15 slidably engages with the surface of the locking rod 16. One side of the outer surface of the adjusting plate 14 has a double row of notches 17. A control wheel 18 is rotatably mounted on one side of the mounting plate 1. A lever 19 is fixedly connected to the side surface of the adjusting plate 14, and a connecting ring 2 is fixedly connected to one side surface of the adjusting plate 14. A tension spring 21 is fixedly connected to one end of the connecting ring 2, and a fixing block 22 is fixedly connected to one end of the tension spring 21. The fixing block 22 is fixedly connected to one side surface of the mounting plate 1. By rotating the control wheel 18, the lever 19 can be moved, which can push the first double row notch 17 to push the adjusting plate 14 to rotate, which can also drive the lock head 11 to rotate. In this way, the opening lock groove 12 can be tilted, and the hood can be raised by a certain gap. The lock ring is engaged with the secondary positioning groove 13. Pulling the control wheel 18 to rotate again can combine with the second double row notch 17 to push the lock head 11 to rotate. In this way, the lock ring can be disengaged from the secondary positioning groove 13, so that the hood can be opened directly by double pull operation, which is convenient for control and use. After the lock ring is separated, the tension spring 21 can pull the lock head 11 to reset and rotate, so as to return to the locking angle position, which is convenient for combination control and precise and stable.

[0027] Please see Figure 2 and Figure 5 A mounting ring 23 is fixedly connected to one side of the control wheel 18, and a pull rope 24 is fixedly connected to one side of the mounting ring 23. A guide plate 25 is fixedly connected to one side of the mounting plate 1. The guide plate 25 is located on one end of the pull rope 24, and a return spring 26 is fixedly connected to one side of the guide plate 25. The return spring 26 is slidably sleeved on one end of the pull rope 24. The pull rope is connected through the mounting ring, and the return spring is connected through the guide plate. It can be installed in combination for pulling and adjustment, and can be reset by the return spring. It can be pulled a second time for connection control, which is convenient, efficient, and easy to install and use. The control wheel 18 is rotated by pulling the pull rope 24. After being released, it is pushed back to its original position by the return spring 26, which is convenient for secondary pulling and does not change the stroke, which is conducive to control operation.

[0028] Please see Figure 3 and Figure 5Guide wheels 27 are rotatably mounted on both ends of the guide plate 25. The guide wheels 27 are rotatably connected to the two sides of the pull rope 24. The surface of the guide wheel 27 is provided with an annular limiting groove 28, which is rotatably connected to the surface of the pull rope 24. The guide wheels 27 are symmetrically distributed on both sides of the pull rope 24 and are located at the end of the return spring 26. By setting the annular limiting groove on the guide wheel, the pull rope can be combined and limited to prevent separation and detachment, which is conducive to guiding and pulling, and convenient for installation and use. By combining the guide wheel 27 with the annular limiting groove 28 to limit the pull rope 24, separation and detachment are prevented, ensuring the accuracy and stability of guiding and pulling, and facilitating installation and use.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A novel double-pull car hood lock, comprising a mounting plate (1), wherein a lock head (11) is rotatably mounted on one side surface of the mounting plate (1), and an open lock groove (12) is provided on one side of the lock head (11), characterized in that: The inner side of the opening lock groove (12) is provided with a secondary positioning groove (13), the other side of the lock head (11) is provided with an adjustment plate (14), one side surface of the adjustment plate (14) is provided with a lock hole (15), one side surface of the mounting plate (1) is fixedly connected with a lock rod (16), the lock hole (15) is slidably engaged with the surface of the lock rod (16), one side of the outer surface of the adjustment plate (14) is provided with a double row of notches (17), one side surface of the mounting plate (1) is rotatably mounted with a control wheel (18), one side surface of the control wheel (18) is fixedly connected with a lever (19), one side surface of the adjustment plate (14) is fixedly connected with a connecting ring (2), one end of the connecting ring (2) is fixedly connected with a tension spring (21), one end of the tension spring (21) is fixedly connected with a fixing block (22), and the fixing block (22) is fixedly connected to one side surface of the mounting plate (1).

2. The novel double-pull car hood lock according to claim 1, characterized in that: A mounting ring (23) is fixedly connected to one side of the control wheel (18), and a pull rope (24) is fixedly connected to one side of the mounting ring (23).

3. A novel double-pull car hood lock according to claim 1, characterized in that: A guide plate (25) is fixedly connected to one side surface of the mounting plate (1), and the guide plate (25) is located on one end surface of the pull rope (24).

4. A novel double-pull car hood lock according to claim 3, characterized in that: A reset spring (26) is fixedly connected to one side of the guide plate (25), and the reset spring (26) is slidably sleeved on one end surface of the pull rope (24).

5. A novel double-pull car hood lock according to claim 3, characterized in that: Guide wheels (27) are rotatably mounted on both ends of the guide plate (25), and the guide wheels (27) are rotatably connected to both sides of the pull rope (24).

6. A novel double-pull car hood lock according to claim 5, characterized in that: The surface of the guide wheel (27) is provided with an annular limiting groove (28), which is rotatably connected to the surface of the pull rope (24).

7. A novel double-pull car hood lock according to claim 5, characterized in that: The guide wheels (27) are symmetrically distributed on both sides of the pull rope (24) and located at the end of the reset spring (26).