Engine cover lock with switch indication function

By designing a hood lock with a switch indicator function, and utilizing the combination of a ratchet, plastic-coated parts, and a signal switch, the hood status is monitored and transmitted in real time, solving the problem of existing hood locks lacking automatic indicators and improving operational convenience and safety.

CN224187362UActive Publication Date: 2026-05-01HEFEI CHUANGJIA AUTOMOBILE ELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI CHUANGJIA AUTOMOBILE ELECTRONICS
Filing Date
2025-07-23
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing hood lock lacks an automatic indicator of its open/closed status, requiring drivers to manually check it, which increases operational complexity and poses a safety hazard.

Method used

Design a hood lock with switch indication function. Through the cooperation of ratchet, plastic-coated parts, elastic pressure plate and signal switch, the hood status is monitored in real time and the signal is transmitted to the vehicle control system to realize automatic indication.

Benefits of technology

No manual inspection by the driver is required, reducing operational complexity, improving vehicle driving safety, and avoiding safety hazards caused by negligence.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224187362U_ABST
    Figure CN224187362U_ABST
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Abstract

The utility model provides an engine cover lock with a switch indication function. The engine cover lock comprises a supporting piece; the ratchet wheel is rotationally connected to the interior of the supporting piece, and the outer side face of the ratchet wheel is sleeved with a plastic coating piece; the switch support is arranged on the front face of the supporting piece, and an elastic pressing plate is fixedly installed on the top of the switch support. According to the engine hood lock with the switch indication function, through mutual cooperation of the ratchet wheel, the plastic-coated part, the elastic pressing plate, the signal switch and other structures, the opening and closing state of an engine hood can be monitored in real time in the using process, a state signal is transmitted to a vehicle control system in time, and the vehicle control system is protected. In this way, the problem that an existing engine hood lock does not have an automatic indication function is solved, manual inspection of a driver is not needed, and operation complexity is reduced; meanwhile, potential safety hazards caused by the fact that a driver does not check the state of the engine hood due to negligence are avoided, and the safety of vehicle driving is improved.
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Description

A hood lock with switch indicator function Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to an engine hood lock with a switch indicator function. Background Technology

[0002] With the rapid development of the automotive industry, consumers are placing increasingly higher demands on the intelligence level and driving safety of automobiles. As one of the key safety components of a car, the reliability of the hood lock's working status directly affects the driving safety of the vehicle.

[0003] Currently, most hood locks on the market do not have an automatic indicator of their open / closed status. When the driver operates the hood, they cannot visually determine whether the hood is fully closed through the vehicle's electronic system. This forces the driver to manually check the hood's locking status, increasing the complexity of the operation and posing a safety hazard due to oversight.

[0004] Therefore, it is necessary to provide a hood lock with a switch indicator function to solve the above-mentioned technical problems. Summary of the Invention

[0005] This utility model provides an engine hood lock with a switch indicator function, which solves the problems of existing engine hood locks having no switch status indicator and relying on manual inspection, resulting in inconvenience and safety hazards.

[0006] To solve the above-mentioned technical problems, this utility model provides an engine hood lock with a switch indicator function, comprising:

[0007] Support components;

[0008] A ratchet is rotatably connected to the interior of the support member, and a plastic-coated part is fitted onto the outer surface of the ratchet.

[0009] A switch bracket is disposed on the front side of the support member, and an elastic pressure plate is fixedly installed on the top of the switch bracket;

[0010] A signal switch is disposed on the inner side of the switch bracket.

[0011] Preferably, the plastic-coated component is disposed on top of the elastic pressure plate, and the elastic pressure plate is disposed on top of the signal switch.

[0012] Preferably, a spring is fixedly mounted on the front of the support member, and one end of the spring is fixedly mounted on the front of the ratchet.

[0013] Preferably, a mounting base is fixedly installed at the bottom of the switch bracket, and a mounting screw is provided inside the mounting base, the mounting screw being threaded into the inside of the front of the support member.

[0014] Preferably, a wire harness is fixedly installed at the bottom of the signal switch, and a connector is fixedly installed at one end of the wire harness.

[0015] Preferably, a wire harness limiting component is provided on one side of the mounting base.

[0016] Preferably, the wire harness limiting assembly includes an elastic ring, which is fixedly installed on one side of the mounting base. A rubber sleeve is fixedly installed on the inner side of the elastic ring, and the rubber sleeve is fitted onto the outer side of the wire harness. Two elastic strips are fixedly installed at one end of one side of the elastic ring, and a snap-fit ​​block is fixedly installed at one end of each of the two elastic strips. A snap-fit ​​frame is fixedly installed at the other end of one side of the elastic ring, and the snap-fit ​​block snaps into the side of the snap-fit ​​frame.

[0017] Compared with related technologies, the hood lock with switch indicator function provided by this utility model has the following advantages:

[0018] This utility model provides an engine hood lock with an on / off indicator function. Through the cooperation of a ratchet, a plastic-coated part, an elastic pressure plate, and a signal switch, it can monitor the on / off status of the engine hood in real time during use and transmit the status signal to the vehicle control system in a timely manner. This solves the problem of existing engine hood locks lacking an automatic indicator function, eliminating the need for manual inspection by the driver and reducing the cumbersomeness of operation. At the same time, it avoids safety hazards caused by the driver's negligence in not checking the status of the engine hood, thus improving the safety of vehicle driving. Attached Figure Description

[0019] Figure 1 is a structural schematic diagram of a first embodiment of a hood lock with switch indicator function provided by this utility model;

[0020] Figure 2 is a structural schematic diagram of a second embodiment of a hood lock with switch indicator function provided by this utility model;

[0021] Figure 3 is a schematic diagram of the wire harness limiting assembly structure shown in Figure 2;

[0022] Figure 4 is a schematic diagram of the hood lock structure in the prior art provided by this utility model.

[0023] The following are the labels in the diagram: 1. Support component, 2. Ratchet, 3. Spring, 4. Plastic-coated component, 5. Switch bracket, 6. Elastic pressure plate, 7. Signal switch, 8. Wire harness, 9. Connector, 10. Mounting base, 11. Mounting screw, 12. Wire harness limit assembly, 121. Elastic ring, 122. Rubber sleeve, 123. Snap-fit ​​frame, 124. Elastic strip, 125. Snap-fit ​​block. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] First Embodiment

[0026] Please refer to Figure 1, which is a structural schematic diagram of a first embodiment of a hood lock with a switch indicator function provided by this utility model. A hood lock with a switch indicator function includes: a support member 1;

[0027] Ratchet 2, which is rotatably connected to the inside of the support member 1, and the outer side of the ratchet 2 is covered with a plastic-coated part 4;

[0028] A switch bracket 5, the switch bracket 6 is disposed on the front side of the support member 1, and an elastic pressure plate 6 is fixedly installed on the top of the switch bracket 5;

[0029] Signal switch 7 is disposed on the inner side of the switch bracket 5.

[0030] The plastic-coated component 4 is disposed on the top of the elastic pressure plate 6, and the elastic pressure plate 6 is disposed on the top of the signal switch 7.

[0031] A spring 3 is fixedly installed on the front of the support member 1, and one end of the spring 3 is fixedly installed on the front of the ratchet 2.

[0032] The bottom of the switch bracket 5 is fixedly installed with a mounting base 10, and the mounting base 10 is provided with a mounting screw 11, which is threaded to the inside of the front of the support member 1.

[0033] A wire harness 8 is fixedly installed at the bottom of the signal switch 7, and a connector 9 is fixedly installed at one end of the wire harness 8.

[0034] The plastic-coated part 4 is made of wear-resistant rubber and is tightly fitted onto the outer side of the ratchet 2 through injection molding. This increases the cushioning when in contact with the elastic pressure plate 6 and avoids wear caused by direct friction between metals, thus extending the service life of the part.

[0035] The elastic pressure plate 6 is made of spring steel sheet and has good elastic restoring ability. It is fixedly installed on the top of the switch bracket 5. Its position is directly below the plastic-coated part 4 and directly above the signal switch 7, forming a transmission chain of "plastic-coated part 4 - elastic pressure plate 6 - signal switch 7".

[0036] The signal switch 7 is a micro switch (model D2F-01L2 optional), which is fixed on the inner side of the switch bracket 5. Its contact piece is in contact with the bottom of the elastic pressure plate 6. The circuit is switched on and off by the pressing / resetting action of the elastic pressure plate 6.

[0037] Connector 9 can be directly connected to the vehicle's main wiring harness to enable signal transmission to the vehicle control system (Body Control Module).

[0038] The working principle of the hood lock with switch indicator function provided by this utility model is as follows:

[0039] When the hood is opened, the ratchet 2 is in the open state under the elastic force of the spring 3. At this time, the plastic-coated part 4 on the outer side of the ratchet 2 separates from the elastic pressure plate 6. The elastic pressure plate 6 is not pressured and returns to its original position. The contact of the signal switch 7 is not triggered. The signal switch 7 is in the closed state. The signal is transmitted to the vehicle control system through the wiring harness 8 and the connector 9. The instrument panel displays the "hood not closed" prompt or issues a warning message to remind the driver that the hood is not closed.

[0040] When the hood is closed, the hood latch pushes the ratchet 2 to overcome the spring force of the spring 3 and rotate to the locked position. The plastic-coated part 4 on the outer side of the ratchet 2 rotates accordingly and presses down on the elastic pressure plate 6. After being pressed, the elastic pressure plate 6 triggers the contact piece of the signal switch 7 downward, so that the signal switch 7 is in the off state. At this time, the signal transmission is interrupted, and the prompt or warning information on the instrument panel disappears, indicating that the hood has been reliably closed and the vehicle can be driven normally.

[0041] Compared with related technologies, the hood lock with switch indicator function provided by this utility model has the following advantages:

[0042] Through the cooperation of ratchet 2, plastic-coated part 4, elastic pressure plate 6 and signal switch 7, the opening and closing status of the hood can be monitored in real time during use, and the status signal is transmitted to the vehicle control system in a timely manner. This solves the problem that the existing hood lock does not have an automatic indicator function, eliminating the need for manual inspection by the driver and reducing the cumbersomeness of operation. At the same time, it avoids safety hazards caused by the driver's negligence in not checking the status of the hood, thus improving the safety of vehicle driving.

[0043] Second Embodiment

[0044] Referring to Figures 2 and 3, based on the first embodiment of this application which provides a hood lock with a switch indicator function, the second embodiment of this application proposes another hood lock with a switch indicator function. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the separate implementation of the first embodiment.

[0045] Specifically, the second embodiment of this application provides a hood lock with a switch indicator function, which differs in that a hood lock with a switch indicator function has a wiring harness limiting component 12 provided on one side of the mounting base 10.

[0046] The wire harness limiting assembly 12 includes an elastic ring 121, which is fixedly installed on one side of the mounting base 10. A rubber sleeve 122 is fixedly installed on the inner side of the elastic ring 121, and the rubber sleeve 122 is fitted onto the outer side of the wire harness 8. Two elastic strips 124 are fixedly installed at one end of one side of the elastic ring 121, and a snap-fit ​​block 125 is fixedly installed at one end of each of the two elastic strips 124. A snap-fit ​​frame 123 is fixedly installed at the other end of one side of the elastic ring 121, and the snap-fit ​​block 125 snaps into the side of the snap-fit ​​frame 123.

[0047] The working principle of the hood lock with switch indicator function provided by this utility model is as follows:

[0048] When installing the wire harness 8, first pass the wire harness 8 through the rubber sleeve 122 inside the elastic ring 121. Use the elasticity of the rubber sleeve 122 to wrap around the outer side of the wire harness 8 to prevent the wire harness 8 from directly contacting the elastic ring 121 and causing wear. Then, push the two elastic strips 124 on one side of the elastic ring 121 toward the snap-fit ​​frame 123 so that the snap-fit ​​blocks 125 at the ends of the elastic strips 121 snap into the side of the snap-fit ​​frame 123. Through the cooperation between the snap-fit ​​blocks and the snap-fit ​​frame, the elastic ring 121 is tightened, thereby stably limiting the wire harness 8 to one side of the mounting base 10.

[0049] Compared with related technologies, the hood lock with switch indicator function provided by this utility model has the following advantages:

[0050] Through the cooperation of the elastic ring 121, the snap-fit ​​block 125, the rubber sleeve 122 and the snap-fit ​​frame 123, the wiring harness 8 is firmly limited, avoiding poor contact of the signal switch 7 or interruption of signal transmission due to loosening or pulling of the wiring harness, and ensuring that the indicator signal of the hood opening and closing status can be stably transmitted to the vehicle control system.

Claims

1. A hood lock with a switch indicator function, characterized in that, include: Support components; A ratchet is rotatably connected to the interior of the support member, and a plastic-coated part is fitted onto the outer surface of the ratchet. A switch bracket is disposed on the front side of the support member, and an elastic pressure plate is fixedly installed on the top of the switch bracket; a signal switch is disposed on the inner side of the switch bracket.

2. A hood lock with switch indicator function according to claim 1, characterized in that, The plastic-coated component is disposed on top of the elastic pressure plate, and the elastic pressure plate is disposed on top of the signal switch.

3. A hood lock with a switch indicator function according to claim 1, characterized in that, A spring is fixedly mounted on the front of the support member, and one end of the spring is fixedly mounted on the front of the ratchet.

4. A hood lock with switch indicator function according to claim 1, characterized in that, The bottom of the switch bracket is fixedly mounted with a mounting base, and the mounting base is provided with mounting screws, which are threaded into the inside of the front of the support member.

5. A hood lock with switch indicator function according to claim 4, characterized in that, A wire harness is fixedly installed at the bottom of the signal switch, and a connector is fixedly installed at one end of the wire harness.

6. A hood lock with switch indicator function according to claim 5, characterized in that, A wire harness limiting component is provided on one side of the mounting base.

7. A hood lock with a switch indicator function according to claim 6, characterized in that, The wire harness limiting assembly includes an elastic ring, which is fixedly installed on one side of the mounting base. A rubber sleeve is fixedly installed on the inner side of the elastic ring, and the rubber sleeve is fitted onto the outer side of the wire harness. Two elastic strips are fixedly installed at one end of one side of the elastic ring, and a snap-fit ​​block is fixedly installed at one end of each of the two elastic strips. A snap-fit ​​frame is fixedly installed at the other end of one side of the elastic ring, and the snap-fit ​​block snaps into the side of the snap-fit ​​frame.