A deformation-resistant hood assembly

Abstract

The utility model discloses an anti-deformation's engine bonnet assembly relates to engine bonnet assembly technical field, including engine bonnet outer cover, the engine bonnet outer cover front end fixedly connected with front anti -collision beam, both sides of front anti -collision beam all are fixedly connected with side anti -collision board, and the fixedly connected with mounting panel between two side anti -collision boards, the front end of mounting panel is provided with first anti -deformation subassembly, both sides of first anti -deformation subassembly all are provided with two second anti -deformation subassembly, the utility model discloses an anti-deformation's engine bonnet assembly, through the guidance telescopic column of first anti -deformation subassembly and anti -deformation spring absorption axial impact force, and damper passes through the friction and dissipates vibration energy, and blocks the transmission to the cabin, and second anti -deformation subassembly innovation uses " gas spring plus mechanical spring " double buffering, and the sealed piston compression sealed cavity gas and tension spring synergies, promote energy absorption efficiency, avoid the vibration of cabin parts and damage.

Description

Technical Field

[0001] This utility model relates to the field of engine hood assembly, and in particular to a deformation-resistant engine hood assembly. Background Technology

[0002] The hood assembly is a core component of the car body. It needs to protect the engine and internal components while also having the ability to resist deformation during collisions (especially frontal collisions) to reduce component damage and lower maintenance costs. Currently, the deformation-resistant design of hood assemblies on the market mostly relies on single sheet metal reinforcement, which has significant limitations and is difficult to adapt to the needs of complex collision scenarios.

[0003] Existing engine hood assemblies typically rely on the rigidity of the outer sheet metal to resist impacts, which can easily lead to energy concentration in localized areas, causing the outer sheet to dent, bend, or even break. Furthermore, the lack of dedicated buffer components allows collision vibration energy to be easily transmitted into the engine compartment, causing collateral damage. In the event of a frontal collision, the simple front structure of existing assemblies (such as bumper strips) can only undergo initial elastic deformation and cannot further convert and dissipate impact energy. Secondly, although existing assemblies have simple spring buffers, they do not combine sealed cavity gas buffers and dampers to dissipate energy, resulting in limited effectiveness and a tendency to fail due to excessive spring deformation. Additionally, the lack of a buffer component travel limit design means that components can easily detach from their working range under large impact forces, losing their resistance to deformation. To address these issues, we propose a deformation-resistant engine hood assembly. Utility Model Content

[0004] The main objective of this invention is to provide a deformation-resistant engine hood assembly, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A deformation-resistant engine hood assembly includes an engine hood cover, a front bumper beam fixedly connected to the front end of the engine hood cover, side bumper plates fixedly connected to both sides of the front bumper beam, a mounting plate fixedly connected between the two side bumper plates, a first deformation-resistant component disposed at the front end of the mounting plate, two second deformation-resistant components disposed on both sides of the first deformation-resistant component, each second deformation-resistant component including a connecting sleeve and a mounting connecting seat, the front end of the connecting sleeve being fixedly connected to the front bumper beam, the mounting connecting seat being fixedly connected to the front end of the mounting plate, a sealing piston disposed in front of the mounting connecting seat, and the sealing piston being slidably connected to the inner cavity of the connecting sleeve.

[0007] Preferably, a spring mounting seat is fixedly connected to the front end of the sealing piston, and a tension spring body is fixedly connected to the front end of the spring mounting seat. A sealing cavity is formed between the sealing piston and the connecting sleeve, and both the spring mounting seat and the tension spring body are located inside the sealing cavity.

[0008] Preferably, a limiting ring is fixedly connected to the rear end of the connecting sleeve, and the outer diameter of the sealing piston is smaller than the inner diameter of the limiting ring.

[0009] Preferably, a drive rod is fixedly connected to the front end of the mounting connector, and the drive rod is fixedly connected to the sealing piston.

[0010] Preferably, the first anti-deformation component includes a rear connecting plate, which is fixedly connected to the front end of the mounting plate. A guide telescopic column is fixedly connected to the front end of the rear connecting plate, and a front connecting plate is fixedly connected to the front end of the guide telescopic column. The front connecting plate is fixedly connected to the rear end of the front anti-collision beam.

[0011] Preferably, the outer side of the guide telescopic column is provided with multiple anti-deformation springs, and the front and rear ends of the anti-deformation springs are fixedly connected to the front connecting plate and the rear connecting plate, respectively.

[0012] Preferably, multiple corresponding rotating seats are fixedly connected to the outer sides of both the rear connecting plate and the front connecting plate, and a damper is rotatably connected between every two corresponding rotating seats.

[0013] Preferably, an inner sheet metal frame is fixedly connected to the lower end of the engine hood cover, and a reinforcing rib is fixedly connected to the inner side of the inner sheet metal frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This deformation-resistant engine hood assembly forms a stable foundation through the inner sheet metal frame and reinforcing ribs at the lower end of the engine hood cover, preventing local dents and fractures in the initial stage of a collision. The front anti-collision beam and side anti-collision plates form the first line of defense, dispersing lateral and longitudinal impact forces through elastic deformation. Together with the anti-deformation components at the front of the mounting plate, they form the second buffer. Among them, the guide telescopic column and anti-deformation spring of the first anti-deformation component absorb axial impact forces, and the damper dissipates vibration energy through friction, blocking the transmission of energy into the compartment. The second anti-deformation component innovatively adopts a dual buffer of "gas spring plus mechanical spring". The sealed piston compresses the gas in the sealed cavity and works in synergy with the tension spring to improve energy absorption efficiency, prevent damage to internal components due to vibration, and reduce maintenance costs.

[0016] 2. The deformation-resistant engine hood assembly has a limiting retaining ring at the rear end of the connecting sleeve of the second deformation-resistant component, which can limit the sliding stroke of the sealing piston and prevent it from leaving the working range. The guide telescopic column of the first deformation-resistant component provides stable guidance for the deformation-resistant spring, avoiding spring force deviation that could lead to buffer failure. This design ensures that the buffer components can continue to function under different intensity collision scenarios, effectively preventing the loss of deformation resistance due to component failure, and improving protection reliability and overall service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a deformation-resistant engine hood assembly according to the present invention.

[0018] Figure 2 This is a partial structural cross-section of a deformation-resistant engine hood assembly according to the present invention. Figure 1 ;

[0019] Figure 3 This is a partial structural diagram of a deformation-resistant engine hood assembly according to the present invention;

[0020] Figure 4 This is a partial structural cross-section of a deformation-resistant engine hood assembly according to the present invention. Figure 2 ;

[0021] Figure 5 This is an enlarged structural diagram of point A of the deformation-resistant engine hood assembly of this utility model.

[0022] In the diagram: 1. Engine hood cover; 2. Front bumper beam; 3. Side bumper plate; 4. Inner sheet metal frame; 5. Reinforcing rib; 6. Mounting plate; 7. First anti-deformation component; 71. Rear connecting plate; 72. Guide telescopic column; 73. Front connecting plate; 74. Anti-deformation spring; 75. Rotating seat; 76. Damper; 8. Second anti-deformation component; 81. Connecting sleeve; 82. Spring mounting seat; 83. Tension spring body; 84. Sealing piston; 85. Drive rod; 86. Limiting circlip; 87. Mounting connecting seat; 88. Sealing cavity. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1-5As shown, a deformation-resistant engine hood assembly includes an engine hood cover 1. A front bumper beam 2 is fixedly connected to the front end of the engine hood cover 1. Side bumper plates 3 are fixedly connected to both sides of the front bumper beam 2. A mounting plate 6 is fixedly connected between the two side bumper plates 3. A first deformation-resistant component 7 is provided at the front end of the mounting plate 6. Two second deformation-resistant components 8 are provided on both sides of the first deformation-resistant component 7. The second deformation-resistant component 8 includes a connecting sleeve 81 and a mounting connection seat 87. The front end of the connecting sleeve 81 is fixedly connected to the front bumper beam 2. The mounting connection seat 87 is fixedly connected to the front end of the mounting plate 6. A sealing piston 84 is provided in front of the mounting connection seat 87. The sealing piston 84 is slidably connected to the inner cavity of the connecting sleeve 81.

[0025] In this embodiment, a spring mounting seat 82 is fixedly connected to the front end of the sealing piston 84, and a tension spring body 83 is fixedly connected to the front end of the spring mounting seat 82. A sealing cavity 88 is formed between the sealing piston 84 and the connecting sleeve 81. The spring mounting seat 82 and the tension spring body 83 are both located in the inner cavity of the sealing cavity 88. A limit ring 86 is fixedly connected to the rear end of the connecting sleeve 81. The outer diameter of the sealing piston 84 is smaller than the inner diameter of the limit ring 86. A drive rod 85 is fixedly connected to the front end of the mounting connecting seat 87. The drive rod 85 is fixedly connected to the sealing piston 84.

[0026] Specifically, the front bumper beam 2 fixed to the front end of the engine hood cover 1 and the side bumper plates 3 on both sides form the first front protective barrier. In the event of a collision, the elastic deformation of the beam and the plates first absorbs and disperses the lateral and longitudinal impact forces, reducing the energy transfer to the interior of the assembly. Furthermore, the first anti-deformation component 7 and the second anti-deformation components 8 on both sides of the mounting plate 6 fixed between the two side bumper plates 3 form the second buffer line. In the second anti-deformation component 8, the mounting connection seat 87 at the front end of the mounting plate 6 is connected to the sealing piston 84 through the drive rod 85. The sealing piston 84 slides in the inner cavity of the connecting sleeve 81 fixed to the front bumper beam 2. During a collision, the sealing piston 84 compresses the gas in the sealing cavity 88, which, together with the tension of the tension spring body 83 on the spring mounting seat 82, forms a double buffer of "gas spring plus mechanical spring". At the same time, the limiting ring 86 restricts the sliding stroke of the sealing piston 84 to prevent the component from excessively deforming and failing.

[0027] In this embodiment, the first anti-deformation component 7 includes a rear connecting plate 71, which is fixedly connected to the front end of the mounting plate 6. A guide telescopic column 72 is fixedly connected to the front end of the rear connecting plate 71, and a front connecting plate 73 is fixedly connected to the front end of the guide telescopic column 72. The front connecting plate 73 is fixedly connected to the rear end of the front anti-collision beam 2. Multiple anti-deformation springs 74 are provided on the outer side of the guide telescopic column 72. The front and rear ends of the anti-deformation springs 74 are fixedly connected to the front connecting plate 73 and the rear connecting plate 71, respectively. Multiple corresponding rotating seats 75 are fixedly connected to the outer side of both the rear connecting plate 71 and the front connecting plate 73. A damper 76 is rotatably connected between each pair of corresponding rotating seats 75.

[0028] Specifically, in the first anti-deformation assembly 7, the rear connecting plate 71 is connected to the front connecting plate 73 via the guide telescopic column 72. During a collision, the guide telescopic column 72 extends and retracts along the axis, and in conjunction with the elastic restoring force of the outer anti-deformation spring 74, further absorbs the axial impact force. At the same time, the damper 76, which is connected to the outer rotating seat 75 of the rear connecting plate 71 and the front connecting plate 73, dissipates the vibration energy generated by the impact through the friction between the piston and the oil, avoiding resonance that aggravates deformation. Through the synergistic effect of the above-mentioned multi-level components, the collision energy can be gradually absorbed, dispersed and dissipated, ultimately significantly improving the deformation resistance of the engine hood assembly.

[0029] In this embodiment, an inner sheet metal frame 4 is fixedly connected to the lower end of the engine hood cover 1, and a reinforcing rib 5 is fixedly connected to the inner side of the inner sheet metal frame 4.

[0030] Specifically, the inner sheet metal frame 4 and the inner reinforcing ribs 5 fixed at the lower end of the engine hood cover 1 can form a basic rigid structure. The frame support improves the overall bending resistance of the cover and avoids dents caused by local stress concentration in the early stages of a collision.

[0031] It should be noted that this utility model is a deformation-resistant engine hood assembly. Firstly, the inner sheet metal frame 4 fixed to the lower end of the engine hood cover 1 and the inner reinforcing ribs 5 can form a basic rigid structure. The frame support improves the overall bending resistance of the cover and avoids indentation caused by local stress concentration in the early stage of a collision. Furthermore, the front anti-collision beam 2 fixed to the front end of the engine hood cover 1 and the side anti-collision plates 3 on both sides form the first front protective barrier. In the event of a collision, the elastic deformation of the beam and plates initially absorbs and disperses the lateral and longitudinal impact forces, reducing the energy transfer to the interior of the assembly. Secondly, the first anti-deformation component 7 set at the front end of the mounting plate 6 fixed between the two side anti-collision plates 3 and the second anti-deformation components 8 on both sides form the second buffer line. In the first anti-deformation component 7, the rear connecting plate 71 is connected to the front connecting plate 73 through the guide telescopic column 72. During a collision, the guide telescopic column 72 extends and retracts along the axis, cooperating with the outer anti-deformation elastic... The elastic restoring force of the spring 74 further absorbs the axial impact force. At the same time, the damper 76, which connects the rear connecting plate 71 and the outer rotating seat 75 of the front connecting plate 73, dissipates the vibration energy generated by the impact through the friction between the piston and the oil, avoiding resonance and aggravating deformation. Finally, in the second anti-deformation assembly 8, the mounting connecting seat 87 at the front end of the mounting plate 6 is connected to the sealing piston 84 through the drive rod 85. The sealing piston 84 slides in the inner cavity of the connecting sleeve 81 fixed to the front anti-collision beam 2. During the collision, the sealing piston 84 compresses the gas in the sealing cavity 88, which, together with the tension of the tension spring body 83 on the spring mounting seat 82, forms a double buffer of "gas spring plus mechanical spring". At the same time, the limiting ring 86 restricts the sliding stroke of the sealing piston 84 to prevent the assembly from excessively deforming and failing. Through the synergistic effect of the above multi-level components, the collision energy can be gradually absorbed, dispersed and dissipated, ultimately significantly improving the deformation resistance of the engine hood assembly, which is quite practical.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A deformation-resistant engine hood assembly, comprising an engine hood cover (1), characterized in that: The front end of the engine hood cover (1) is fixedly connected to a front anti-collision beam (2). Side anti-collision plates (3) are fixedly connected to both sides of the front anti-collision beam (2). A mounting plate (6) is fixedly connected between the two side anti-collision plates (3). A first anti-deformation component (7) is provided at the front end of the mounting plate (6). Two second anti-deformation components (8) are provided on both sides of the first anti-deformation component (7). The second anti-deformation component (8) includes a connecting sleeve (81) and a mounting connecting seat (87). The front end of the connecting sleeve (81) is fixedly connected to the front anti-collision beam (2). The mounting connecting seat (87) is fixedly connected to the front end of the mounting plate (6). A sealing piston (84) is provided in front of the mounting connecting seat (87). The sealing piston (84) is slidably connected to the inner cavity of the connecting sleeve (81).

2. The deformation-resistant engine hood assembly according to claim 1, characterized in that: The front end of the sealing piston (84) is fixedly connected to a spring mounting seat (82), and the front end of the spring mounting seat (82) is fixedly connected to a tension spring body (83). A sealing cavity (88) is formed between the sealing piston (84) and the connecting sleeve (81). The spring mounting seat (82) and the tension spring body (83) are both located in the inner cavity of the sealing cavity (88).

3. The deformation-resistant engine hood assembly according to claim 2, characterized in that: The rear end of the connecting sleeve (81) is fixedly connected to a limiting ring (86), and the outer diameter of the sealing piston (84) is smaller than the inner diameter of the limiting ring (86).

4. The deformation-resistant engine hood assembly according to claim 2, characterized in that: The front end of the mounting connector (87) is fixedly connected to a drive rod (85), and the drive rod (85) is fixedly connected to the sealing piston (84).

5. The deformation-resistant engine hood assembly according to claim 1, characterized in that: The first anti-deformation component (7) includes a rear connecting plate (71), which is fixedly connected to the front end of the mounting plate (6). A guide telescopic column (72) is fixedly connected to the front end of the rear connecting plate (71), and a front connecting plate (73) is fixedly connected to the front end of the guide telescopic column (72). The front connecting plate (73) is fixedly connected to the rear end of the front anti-collision beam (2).

6. The deformation-resistant engine hood assembly according to claim 5, characterized in that: Multiple anti-deformation springs (74) are provided on the outer side of the guide telescopic column (72), and the front and rear ends of the anti-deformation springs (74) are fixedly connected to the front connecting plate (73) and the rear connecting plate (71) respectively.

7. The deformation-resistant engine hood assembly according to claim 6, characterized in that: Multiple corresponding rotating seats (75) are fixedly connected to the outer sides of the rear connecting plate (71) and the front connecting plate (73), and a damper (76) is rotatably connected between each pair of corresponding rotating seats (75).

8. The deformation-resistant engine hood assembly according to claim 1, characterized in that: The lower end of the engine hood cover (1) is fixedly connected to an inner sheet metal frame (4), and the inner side of the inner sheet metal frame (4) is fixedly connected to a reinforcing rib (5).

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