Engine hood lock catch structure
The locking structure consisting of a limit block, spring and handle, combined with hinge connection and gas spring, solves the problem of cumbersome engine hood fixation, realizes convenient and safe engine hood operation, reduces maintenance costs and provides convenient maintenance space.
Patent Information
- Application Number
- CN202520090846.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2035-01-15
AI Technical Summary
In the existing engine hood fixing technology, the bolt connection is cumbersome and not conducive to maintenance, and a simple and stable locking structure needs to be designed.
The lock structure consists of a limit block, a first spring, a first limit seat and a handle. The lock is directly unlocked by the handle, and the hinge connection and the gas spring provide assistance to achieve convenient opening and closing of the engine hood.
It is simple to operate, safe and reliable, reduces maintenance costs, provides spacious maintenance space, protects engine compartment internals, reduces damage, and reduces noise and force requirements.
Smart Images

Figure CN223387128U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lock structures, in particular to an engine hood lock structure. Background Art
[0002] As an important part of a car, the engine hood's main function is to protect the engine from damage by the external environment while ensuring that the engine maintains proper temperature and ventilation conditions during operation. To achieve this function, the engine hood usually needs to be firmly fixed through multiple fixing points to ensure that it can remain in place under various road and climate conditions.
[0003] In existing engine hood fixing technologies, common fixing points include bolts, clips, and other connectors. The number and position of the bolts are usually determined by the size and weight of the engine hood and the expected load conditions. Although bolt connections provide a reliable fixing effect, the installation process is relatively cumbersome and requires precise alignment of the bolt holes and the use of appropriate tools for tightening, which is not conducive to engine maintenance. Therefore, it is necessary to design an engine hood lock structure to solve the above problems. Utility Model Content
[0004] The purpose of the present invention is to provide an engine hood lock structure to solve the problems raised by the above-mentioned background technology.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a hood locking structure, comprising a first baffle, one side of the first baffle being movably connected to an upper guard cover, the other side of the first baffle being docked with a lower guard cover, the first baffle and the lower guard cover being locked by a locking structure, the locking structure comprising a limit block, a first spring, a first limit seat and a handle, the first baffle being slidably connected to the limit block, the outside of the limit block being sleeved with the first spring, one end of the limit block being able to be engaged with the first limit seat, the first limit seat being installed on one side of the lower guard cover, the other end of the limit block penetrating the first baffle and being connected to the handle.
[0006] Preferably, the limit block is a T-shaped structural member, and its transverse member and longitudinal member are both rectangular structural members. The transverse member can be engaged with the first limit seat, and the first spring is sleeved on the outside of the longitudinal member.
[0007] Preferably, the handle includes a second limit seat and a third limit seat, the end of the limit block away from the first limit seat is connected to the second limit seat, and the third limit seat is installed on the side of the second limit seat away from the limit block.
[0008] Preferably, the movable connection between the first baffle and the upper shield is a hinge connection, a multi-combination hinge body is provided between the first baffle and the upper shield, and two petals of the hinge body are respectively connected to the first baffle and the upper shield.
[0009] Preferably, second baffles are mounted on both sides of the first baffle in a mirror-image manner, and a third baffle is integrally formed with the first baffle, and the third baffle passes through the first baffle.
[0010] Preferably, one side of the first baffle is movably connected to a gas spring, and the other end of the gas spring is movably connected to the top end of the upper shield away from the first baffle.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] The utility model unlocks the vehicle by directly pulling the limit block with a handle, which is simple and convenient to operate without the use of additional tools or complicated steps. The lock structure is stable and reliable, which can ensure that the engine hood will not be accidentally opened during driving, thereby improving driving safety. Since the lock structure is relatively simple and the components are easy to disassemble and replace, maintenance costs and time are reduced. After unlocking, the upper guard cover can be easily rotated and opened, providing a more convenient and comfortable operating space for engine maintenance.
[0013] The hinge connection of the utility model allows the upper shield to be easily rotated around the first baffle to open or close without the need for additional tools or complicated steps, thereby improving the convenience of operation. The user only needs to simply pull or push the upper shield to open or close it. The hinge connection allows the upper shield to occupy less space when open, thereby optimizing the space utilization in the engine compartment. This is especially important for vehicles that require frequent access to the engine compartment for inspection or maintenance, and can provide users with a more spacious and convenient operating space.
[0014] The second baffle of the utility model is installed on both sides of the first baffle in a mirror-like manner. The downward-bent design enables it to better protect the components in the engine compartment, prevent dust, moisture and other impurities from entering, and reduce damage to the components in the engine compartment caused by accidental collisions. The third baffle is a cylindrical structural member, integrally formed on the first baffle, and passes through the first baffle. This design not only leaves the necessary space for the oil port, but also allows users to customize the position and size of the third baffle according to actual needs to meet the requirements of different engine compartment layouts and oil port positions. One end of the gas spring is movably connected to the first baffle, and the other end is movably connected to the top of the upper guard shield away from the first baffle. The gas spring uses the pressure difference on both sides of the piston to realize the movement of the piston rod, thereby providing assistance for the opening and closing of the upper guard shield. When the user needs to open the upper guard shield, the gas spring can reduce the user's operating force, making the opening process easier and more labor-saving. Conversely, when the user closes the upper guard shield, the gas spring can also act as a buffer to prevent the upper guard shield from suddenly closing and causing damage or noise. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a side elevation schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a side exploded sectional view of the overall structure of the utility model;
[0017] Figure 3 This is an enlarged view of structure A of the utility model;
[0018] Figure 4 It is a side view schematic diagram of the overall structure of the utility model;
[0019] Figure 5 It is a front plan view of the overall structure of the utility model.
[0020] In the figure: 1. first baffle, 2. upper shield, 3. lower shield, 4. first spring, 5. first limit seat, 6. second limit seat, 7. third limit seat, 8. hinge body, 9. second baffle, 10. third baffle, 11. gas spring, 12. limit block. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] Example 1: Please refer to Figure 1-5As shown, the utility model provides an engine hood lock structure, including a first baffle 1, one side of the first baffle 1 is movably connected to the upper guard 2, the other side of the first baffle 1 can be connected to the lower guard 3, the first baffle 1 and the lower guard 3 can be locked by a lock structure, the lock structure includes a limit block 12, a first spring 4, a first limit seat 5 and a handle, the first baffle 1 is slidably connected to the limit block 12, the outer surface of the limit block 12 is sleeved with the first spring 4, one end of the limit block 12 can be clamped with the first limit seat 5, the first spring 4 is sleeved on the outer surface of the limit block 12, and one end of the limit block 12 can be clamped with the first limit seat 5. A limit seat 5 is installed on one side of the lower guard 3, and the other end of the limit block 12 penetrates the first baffle 1 and is connected to the handle. The limit block 12 is a T-shaped structural member, and its transverse member and longitudinal member are both rectangular structural members, and its transverse member can be clamped with the first limit seat 5. The outside of its longitudinal member is sleeved with a first spring 4. The handle includes a second limit seat 6 and a third limit seat 7. The end of the limit block 12 away from the first limit seat 5 is connected to the second limit seat 6, and the third limit seat 7 is installed on the side of the second limit seat 6 away from the limit block 12.
[0023] When the hood is in the closed state, one side of the first baffle 1 is movably connected to the upper guard cover 2, and the other side is locked with the lower guard cover 3 through the lock structure. The limit block 12 is the core component of the lock. Its T-shaped structure ensures that the horizontal piece can be engaged with the first limit seat 5 to realize the locking function. At the same time, a first spring 4 is sleeved on the outside of the longitudinal piece of the T-shaped structure to provide a reset force for the limit block 12. When the hood needs to be opened, when the user pulls the handle, the limit block 12 is driven to move by the second limit seat 6. Since the limit block 12 is a T-shaped structure, the engaging relationship between the horizontal piece and the first limit seat 5 is broken, and the longitudinal piece is compressed under the action of the first spring 4, realizing the unlocking function. After unlocking, since the first baffle 1 and the upper guard cover 2 are movably connected, the user can lift the upper guard cover 2 and rotate it around the movable connection point to open it, thereby facilitating engine maintenance.
[0024] Unlocking is achieved by directly pulling the limit block 12 with a handle. The operation is simple and convenient, and no additional tools or complicated steps are required. The lock structure is stable and reliable, which can ensure that the engine hood will not be accidentally opened during driving, thereby improving driving safety. Since the lock structure is relatively simple and the components are easy to disassemble and replace, the maintenance cost and time are reduced. After unlocking, the upper guard cover can be easily rotated open, providing a more convenient and comfortable operating space for engine maintenance.
[0025] Specifically, the movable connection between the first baffle 1 and the upper shield 2 is a hinge connection. A multi-combination hinge body 8 is set between the first baffle 1 and the upper shield 2. The two halves of the hinge body 8 are connected to the first baffle 1 and the upper shield 2 respectively.
[0026] In the engine hood lock structure, the first baffle 1 and the upper guard 2 are movably connected by a hinge connection. This connection method allows the upper guard 2 to rotate relative to the first baffle 1, so as to conveniently open or close the engine hood. Specifically, the hinge body 8 serves as a connecting member, and its two petals are firmly connected to the first baffle 1 and the upper guard 2 respectively. The hinge body 8 usually has a rotating axis so that the two petals can rotate relative to each other. When the engine hood needs to be opened, the user can unlock it by operating the lock structure, and then rotate the upper guard 2 around the rotating axis of the hinge body 8 to achieve the opening action. On the contrary, when the engine hood needs to be closed, the user only needs to rotate the upper guard 2 back to its original position around the rotating axis and lock it through the lock structure.
[0027] The hinge connection allows the upper guard 2 to be easily rotated around the first baffle 1 to open or close without the need for additional tools or complicated steps, thereby improving the convenience of operation. The user only needs to simply pull or push the upper guard 2 to open or close it. The hinge connection allows the upper guard 2 to occupy less space when open, thereby optimizing the space utilization in the engine compartment. This is especially important for vehicles that require frequent access to the engine compartment for inspection or maintenance, and can provide users with a more spacious and convenient operating space.
[0028] Among them: the second baffle 9 is installed on both sides of the first baffle 1 in a mirror-like manner, the first baffle 1 is integrally formed with a third baffle 10, the third baffle 10 passes through the first baffle 1, and one side of the first baffle 1 is movably connected to a gas spring 11, and the other end of the gas spring 11 is movably connected to the top of the upper shield 2 away from the first baffle 1.
[0029] The second baffle 9 is mirrored on either side of the first baffle 1. Its downwardly curved design provides better protection for engine compartment components, preventing the ingress of impurities such as dust and moisture, and minimizing damage to components from accidental collisions. The third baffle 10 is a cylindrical structural member, integrally formed with the first baffle 1 and extending through it. This design not only leaves the necessary space for the oil port but also allows the user to customize the position and size of the third baffle 10 to suit different engine compartment layouts and oil port locations. A gas spring 11 is movably connected to the first baffle 1 at one end and to the top of the upper shroud 2, away from the first baffle 1, at the other end. The gas spring 11 utilizes the pressure difference between the two sides of the piston to drive the piston rod's movement, thereby assisting in the opening and closing of the upper shroud 2. When the user needs to open the upper shroud 2, the gas spring 11 reduces the user's operating force, making the opening process easier and more labor-saving. Conversely, when the user closes the upper shroud 2, the gas spring 11 also acts as a cushion, preventing the upper shroud 2 from closing suddenly and causing damage or noise.
[0030] Working principle: When the engine hood needs to be opened, the user pulls the handle, and the limit block 12 is driven to move through the second limit seat 6. Since the limit block 12 is a T-shaped structure, the clamping relationship between its horizontal piece and the first limit seat 5 is broken, and the longitudinal piece is compressed under the action of the first spring 4, realizing the unlocking function. After unlocking, since the first baffle 1 and the upper guard cover 2 are movably connected, the user can lift the upper guard cover 2 and rotate it around the movable connection point to open it, thereby facilitating the inspection of the engine. When the engine hood needs to be opened, the user can unlock it by operating the lock structure, and then rotate the upper guard cover 2 around the rotation axis of the hinge body 8 to realize the opening action. On the contrary, when the engine hood needs to be closed, the user only needs to rotate the upper guard cover 2 back to its original position around the rotation axis and lock it through the lock structure.
[0031] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An engine hood latch structure, comprising a first baffle (1), characterized in that: One side of the first baffle (1) is movably connected to the upper shield (2), and the other side of the first baffle (1) can be docked with the lower shield (3). The first baffle (1) and the lower shield (3) can be locked by a locking structure, and the locking structure includes a limit block (12), a first spring (4), a first limit seat (5) and a handle. The first baffle (1) is slidably connected to the limit block (12), and the first spring (4) is sleeved on the outside of the limit block (12). One end of the limit block (12) can be clamped with the first limit seat (5), and the first limit seat (5) is installed on one side of the lower shield (3). The other end of the limit block (12) penetrates the first baffle (1) and is connected to the handle.
2. The engine hood lock structure according to claim 1, characterized in that: The limit block (12) is a T-shaped structural member, and its transverse member and longitudinal member are both rectangular structural members. The transverse member can be engaged with the first limit seat (5), and the first spring (4) is sleeved on the outside of the longitudinal member.
3. The engine hood lock structure according to claim 1, characterized in that: The handle comprises a second limiting seat (6) and a third limiting seat (7); an end of the limiting block (12) away from the first limiting seat (5) is connected to the second limiting seat (6); and the third limiting seat (7) is installed on a side of the second limiting seat (6) away from the limiting block (12).
4. The engine hood lock structure according to claim 1, characterized in that: The movable connection between the first baffle (1) and the upper shield (2) is a hinge connection, and a multi-combination hinge body (8) is provided between the first baffle (1) and the upper shield (2), and two lobes of the hinge body (8) are respectively connected to the first baffle (1) and the upper shield (2).
5. The engine hood lock structure according to claim 1, characterized in that: Second baffles (9) are mounted on both sides of the first baffle (1) in a mirror-image manner, and a third baffle (10) is integrally formed with the first baffle (1), wherein the third baffle (10) passes through the first baffle (1).
6. The engine hood lock structure according to claim 1, characterized in that: One side of the first baffle (1) is movably connected to a gas spring (11), and the other end of the gas spring (11) is movably connected to the top end of the upper shield (2) away from the first baffle (1).