Automobile bonnet hinge

Abstract

The utility model discloses a kind of automobile front cover hinges, including body, the body both ends are provided with mounting rod, recess is provided in the mounting rod, symmetric slide rail is provided in the recess, slide block is provided in the slide rail and is slidably connected therewith, sliding rod is provided between two the slide block, the sliding rod is through the mounting rod and is slidably connected with it, mounting hole is provided in the mounting rod side, sliding hole is provided in the sliding rod side wall and can coincide with the mounting hole, the mounting rod outside is provided with the fixed component adapted to it, auxiliary assembly is provided in the sliding rod one end, forcibly install problem caused by size mismatch of traditional fixed structure is avoided, the sealing property and security of automobile are improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive processing technology, and more specifically, to an automotive hood hinge. Background Technology

[0002] In the current automotive industry, the hood hinge is a core component connecting the car body and the hood. Its performance directly affects the ease of opening the hood, installation stability, and service life. Traditional automotive hood hinges mostly adopt a fixed structure design, which is often difficult to adapt to the slight dimensional differences between different car models or hoods during assembly. This leads to repeated adjustments during installation, which not only increases assembly time but may also cause component deformation due to forced adaptation, affecting the connection strength. Meanwhile, most existing car hood hinges rely on a single bolt or clip structure, which is prone to loosening due to vibration during vehicle operation, thus affecting the hood's sealing performance and increasing the risk of wind noise or rainwater infiltration. In addition, the auxiliary support structure of traditional hinges is mostly a rigid connection, lacking a protective mechanism. When the front cover is closed, the hinge or the edge of the front cover is easily damaged due to excessive impact force, affecting the normal opening and closing of the front cover. Utility Model Content

[0003] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides an automotive hood hinge to solve the technical problems mentioned in the background art, such as the difficulty in adapting to the slight dimensional differences of different car models or the lack of protective mechanisms during hood assembly.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: A car hood hinge includes a body with mounting rods at both ends. Each mounting rod has a groove, and symmetrical slide rails are arranged within the grooves. Sliding blocks are slidably connected to the slide rails. A sliding rod is positioned between the two sliding blocks, passing through and slidably connected to the mounting rods. One side of each mounting rod has a mounting hole, and the sidewall of the sliding rod has a sliding hole that coincides with the mounting hole. A fitting fixing component is provided on the outer side of the mounting rod, and an auxiliary component is provided at one end of the sliding rod.

[0005] The present invention is further configured such that the fixing component includes a fixing frame and a fixing box, the fixing box being symmetrically arranged at both ends of the lower side of the fixing frame, a first spring being provided inside the fixing box, a fixing block being provided at one end of the first spring, the fixing block being adapted to and slidably connected to the fixing box, the fixing block passing through the sliding hole and the mounting hole and being slidably connected thereto, a through fixing rod being provided at the end of the fixing box away from the fixing block, the fixing rod being connected to the fixing block, which can stably lock the position of the sliding rod, the fixing rod connecting to the fixing block can enhance the structural stability, prevent the sliding rod from loosening, and ensure that the hinge connection is firm.

[0006] The present invention is further configured such that the upper side wall of the fixing box is provided with a through hole, and one end of the side wall of the fixing block is provided with a hand handle. The hand handle passes through the through hole and is slidably connected thereto, so that the operator can easily control the sliding of the fixing block by moving the hand handle, thereby easily achieving fixing and unlocking, improving the convenience of operation, and eliminating the need for additional tools.

[0007] The present invention is further configured such that the auxiliary component includes a second spring and a telescopic rod, the second springs are evenly distributed on one side of the sliding rod, the telescopic rod is between the second springs, an auxiliary plate is provided at one end of the second spring, and one end of the telescopic rod is connected to the auxiliary plate, thereby reducing the impact force on the component and helping the front cover to be kept in a suitable position.

[0008] The present invention is further provided with a mounting plate on the outer side of the auxiliary plate, and screw holes are provided at the four corners of the mounting plate to improve the stability and firmness of the connection and prevent shaking during use.

[0009] The present invention is further provided that the inner wall of the groove of the mounting rod is provided with an inner wear-resistant layer, the wear-resistant layer being a ceramic coating, which extends the service life of the component, ensures smooth sliding, and reduces the probability of jamming and abnormal noise.

[0010] The present invention is further provided that the inner wall of the screw hole is provided with a reinforcing layer, the reinforcing layer is a metal insert, and the inner side of the insert is provided with threads, which can enhance the structural strength of the screw hole, avoid wear and stripping of the screw hole due to repeated disassembly and assembly, and ensure the reliability and durability of the installation.

[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a car hood hinge, which has the following advantages: 1. The groove and slide rail inside the mounting rod provide a stable sliding track for the slider. The slider drives the sliding rod to move smoothly inside the mounting rod, allowing the hinge to flexibly adjust its length according to the assembly requirements of the hood and the body. This easily adapts to different vehicle models or size differences during assembly, avoiding the forced installation problems caused by size mismatch in traditional fixed structures.

[0012] 2. The first spring inside the fixing box pushes the fixing block through the sliding hole and the mounting hole. The continuous elastic force of the spring ensures that the fixing block is tightly locked, effectively preventing the sliding rod from shifting due to vibration during vehicle operation. The fixing rod connects the fixing block and passes through the fixing box, further enhancing the structural stability of the fixing block and preventing it from tilting or falling off when under force, thereby ensuring the overall connection of the hinge and reducing the shaking or abnormal noise of the front cover.

[0013] 3. Regarding the stability of connection and support, the auxiliary component at one end of the sliding rod cooperates with the mounting plate to form a reliable force transmission structure. The auxiliary component can provide appropriate elastic support for the opening and closing of the hood, reducing the impact force caused by hard contact. The screw holes at the four corners of the mounting plate ensure the uniformity of force when the hinge is connected to the hood or body, avoiding deformation or damage to the connection parts caused by excessive local stress. This allows the hood to maintain a stable closed state during long-term use, improving the sealing and safety of the car. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the car hood hinge in this utility model; Figure 2 This is a schematic diagram of the overall structure of the car hood hinge in this utility model; Figure 3 This is a schematic diagram of the overall structure of the car hood hinge in this utility model; Figure 4 This is an exploded view of the car hood hinge mounting rod and sliding rod in this utility model; Figure 5 This is a schematic diagram of the internal cross-section of the car hood hinge fixing box in this utility model.

[0015] In the diagram: 1. Main body; 2. Mounting rod; 3. Slide rail; 4. Slider; 5. Mounting hole; 6. Sliding hole; 7. Fixing frame; 8. Fixing box; 9. First spring; 10. Fixing block; 11. Fixing rod; 12. Hand handle; 13. Second spring; 14. Telescopic rod; 15. Auxiliary plate; 16. Mounting plate; 17. Screw hole; 18. Sliding rod. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0018] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0019] Please see Figure 1-5 A car hood hinge includes a body 1, with mounting rods 2 at both ends of the body 1. Each mounting rod 2 has a groove, and symmetrical slide rails 3 are arranged within the grooves. Sliding sliders 4 are slidably connected to the slide rails 3. A sliding rod 18 is arranged between the two sliding sliders 4, passing through and slidably connected to the mounting rods 2. A mounting hole 5 is provided on one side of the mounting rod 2, and a sliding hole 6, which coincides with the mounting hole 5, is provided on the side wall of the sliding rod 18. A matching fixing component is provided on the outer side of the mounting rod 2, and an auxiliary component is provided at one end of the sliding rod 18.

[0020] The fixing component includes a fixing frame 7 and a fixing box 8. The fixing box 8 is symmetrically arranged at both ends of the lower side of the fixing frame 7. A first spring 9 is provided inside the fixing box 8. A fixing block 10 is provided at one end of the first spring 9. The fixing block 10 is adapted to and slidably connected to the fixing box 8. The fixing block 10 passes through the sliding hole 6 and the mounting hole 5 and is slidably connected to them. A fixing rod 11 is provided at the end of the fixing box 8 away from the fixing block 10. The fixing rod 11 is connected to the fixing block 10.

[0021] The upper side wall of the fixing box 8 is provided with a through hole, and a hand handle 12 is provided at one end of the side wall of the fixing block 10. The hand handle 12 passes through the through hole and is slidably connected to it.

[0022] An mounting plate 16 is provided on the outer side of the auxiliary plate 15, and screw holes 17 are provided at the four corners of the mounting plate 16.

[0023] In this embodiment, firstly, the operator needs to adjust the hinge length according to the connection position between the car hood and the car body. At this time, by holding the lever 12, the fixing block 10 is pulled. The fixing block 10 slides in the fixing box 8 and compresses the first spring 9, causing the fixing block 10 to exit from the mounting hole 5 and the sliding hole 6, releasing the lock on the sliding rod 18. Subsequently, the sliding rod 18 can move freely in the mounting rod 2, and the sliders 4 at both ends slide smoothly along the symmetrical slide rail 3 in the groove, ensuring that the sliding process is smooth and does not deviate. The operator pushes the sliding rod 18 as needed until the side wall of the sliding rod 18... The sliding hole 6 coincides with the mounting hole 5 on one side of the mounting rod 2, completing the length adjustment. After the adjustment is completed, release the hand lever 12. The first spring 9 pushes the fixing block 10 back to its original position under the action of elastic force, so that the fixing block 10 passes through the overlapping sliding hole 6 and mounting hole 5, relocking the position of the sliding rod 18. The fixing rod 11 passes through the fixing box 8 and connects with the fixing block 10, providing stable support when the fixing block 10 is under force, preventing the fixing block 10 from tilting, and ensuring that the locking state is reliable. At this time, the fixing frame 7 cooperates with the fixing box 8 to firmly install the fixing component on the outside of the mounting rod 2, ensuring the stability of the overall structure.

[0024] More specifically, the next step is to connect the hinge to the hood and the body. In the auxiliary component at one end of the sliding rod 18, the mounting plate 16 on the outer side of the auxiliary plate 15 is connected to the corresponding position of the hood or body through the screw holes 17 at the four corners. The even distribution of the screw holes 17 makes the mounting plate 16 bear the force in a balanced manner, avoiding damage to the connection part due to excessive local force. After installation, the auxiliary component plays a protective role during the opening and closing of the car hood. In conjunction with the slight adjustment of the sliding rod 18, it reduces the hard contact impact between the hood and the body.

[0025] Please see Figures 1-5 As one embodiment of the auxiliary component: the auxiliary component includes a second spring 13 and a telescopic rod 14. The second springs 13 are evenly distributed on one side of the sliding rod 18, and the telescopic rod 14 is between the second springs 13. An auxiliary plate 15 is provided at one end of the second spring 13, and one end of the telescopic rod 14 is connected to the auxiliary plate 15.

[0026] Specifically, during the opening of the car hood, the hood moves the mounting plate 16 and the auxiliary plate 15. The auxiliary plate 15 pulls the second spring 13 and the telescopic rod 14. The second spring 13 is stretched, generating a counter-pulling force, while the telescopic rod 14 extends accordingly, providing appropriate resistance to the opening of the hood and preventing it from opening too quickly and causing an impact. When the hood closes, the hood pushes the auxiliary plate 15, the second spring 13 is compressed, generating an elastic force, and the telescopic rod 14 shortens accordingly, reducing hard contact between the hood and the car body and protecting the components from damage. Furthermore, during the entire opening and closing process, the sliding rod 18 may undergo slight adjustments, and the auxiliary components will cooperate with its movement. The elastic force of the second spring 13 and the support of the telescopic rod 14 work together to make the movement of the hood more stable.

[0027] Please see Figures 1-5 As one embodiment of the inner wear-resistant layer: the inner wall of the groove of the mounting rod 2 is provided with an inner wear-resistant layer, which is a ceramic coating.

[0028] Specifically, the inner wear-resistant layer of the groove wall of the mounting rod 2 is a ceramic coating, which can effectively reduce the frictional loss between the slider 4 and the inner wall of the groove, and can maintain smooth sliding even after long-term sliding, ensuring that there is no deviation or jamming during the sliding process.

[0029] Please see Figures 1-5 As one implementation of the reinforcing layer: the inner wall of the screw hole 17 is provided with a reinforcing layer, which is a metal insert with threads on the inner side.

[0030] Specifically, during installation, the screws engage with the threads on the inside of the metal inserts, preventing wear and stripping of the screw holes even after repeated disassembly and assembly, thus ensuring a stable connection.

[0031] In summary, when using the overall equipment: During the length adjustment stage before installation, the operator needs to adjust the hinge size according to the relative position of the car hood and the car body. At this time, by pulling the hand lever 12 on the side wall of the fixing block 10, the hand lever 12 slides along the through hole on the upper side wall of the fixing box 8, driving the fixing block 10 to move towards the fixing rod 11 in the fixing box 8 against the elastic force of the first spring 9. The fixing block 10 exits from the mounting hole 5 and the sliding hole 6, releasing the radial constraint on the sliding rod 18. Since the sliders 4 at both ends of the sliding rod 18 form a sliding fit with the symmetrical slide rail 3 in the groove of the mounting rod 2, the slide rail 3 ensures that the sliding rod 18 can move smoothly along the axis of the mounting rod 2 by limiting the movement trajectory of the sliders 4, avoiding lateral deviation. The ceramic coating on the inner wall of the groove of the mounting rod 2 serves as an inner wear-resistant layer, which greatly reduces the friction and wear between the sliders 4 and the inner wall of the groove. The operator pushes the sliding rod 18 until the sliding hole 6 coincides with the mounting hole 5, completing the length adaptation.

[0032] After adjustment, the device enters the locking stage. When the hand lever 12 is released, the first spring 9 releases its stored elastic potential energy, pushing the fixing block 10 to slide in the opposite direction, so that it re-passes through the overlapping sliding hole 6 and mounting hole 5. The gap between the fixing block 10 and the two holes forms radial positioning. The mechanical locking principle of hole-shaft cooperation is used to fix the sliding rod 18 in the current position. At the same time, the fixing rod 11 at the end of the fixing box 8 away from the fixing block 10 is rigidly connected to the fixing block 10 to prevent it from tilting under force, further enhancing the reliability of locking. The rigid connection between the fixing frame 7 and the fixing box 8 firmly installs the entire fixing assembly on the outside of the mounting rod 2, forming a stable force-bearing structure and preventing the locking mechanism from loosening due to vibration.

[0033] The auxiliary component at one end of the sliding rod 18 is connected to the front cover or body through the mounting plate 16. The inner wall of the screw holes 17 at the four corners of the mounting plate 16 is provided with metal inserts as a reinforcing layer. The interference fit between the metal inserts and the mounting plate 16 distributes the threaded force to the entire insert. The helical fit between the screw and the inner thread of the insert generates an axial preload, which firmly fixes the mounting plate 16 to the connection part. The symmetrical distribution of the screw holes 17 at the four corners makes the mounting plate 16 evenly stressed, preventing local stress concentration and deformation. During this process, the second spring 13 in the auxiliary component is in a natural state or a slightly compressed state. The telescopic rod 14 (composed of an outer sleeve and an inner rod) ensures the connection rigidity between the auxiliary plate 15 and the sliding rod 18 through the sleeve structure.

[0034] When the hood is opened, it causes the mounting plate 16 and the auxiliary plate 15 to move outward. The auxiliary plate 15 pulls the second spring 13 and the telescopic rod 14. The second spring 13 is stretched to generate a reverse elastic force. At the same time, the telescopic rod 14 extends synchronously with the auxiliary plate 15. The second spring 13 uses elastic force to form damping, while the telescopic rod 14 restricts the movement direction of the auxiliary plate 15 (only allowing axial extension and contraction) to prevent the spring from bending due to lateral force. The two work together to provide moderate resistance for opening the hood. When the hood is closed, the auxiliary plate 15 is under pressure, the second spring 13 is compressed to generate a reverse thrust, and the telescopic rod 14 shortens, reducing the hard contact between the hood and the vehicle body.

[0035] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents. In all the solutions mentioned above, the operation of electrical components is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies. Therefore, their electrical connection relationships and specific circuit structures will not be elaborated here.

Claims

1. A car hood hinge, comprising a body (1), characterized in that: The main body (1) is provided with mounting rods (2) at both ends. The mounting rods (2) are provided with grooves. Symmetrical slide rails (3) are provided in the grooves. Slider blocks (4) are provided in the slide rails (3) and are slidably connected to them. A sliding rod (18) is provided between the two sliders (4). The sliding rod (18) passes through the mounting rods (2) and is slidably connected to them. The mounting rods (2) are provided with mounting holes (5) on one side. The sliding rod (18) is provided with sliding holes (6) that can overlap with the mounting holes (5) on its side wall. A fixing component adapted to it is provided on the outside of the mounting rods (2). An auxiliary component is provided at one end of the sliding rod (18).

2. The automotive hood hinge according to claim 1, characterized in that: The fixing component includes a fixing frame (7) and a fixing box (8). The fixing box (8) is symmetrically arranged at both ends of the lower side of the fixing frame (7). A first spring (9) is provided inside the fixing box (8). A fixing block (10) is provided at one end of the first spring (9). The fixing block (10) is adapted to and slidably connected to the fixing box (8). The fixing block (10) passes through the sliding hole (6) and the mounting hole (5) and is slidably connected to them. A through fixing rod (11) is provided at one end of the fixing box (8) away from the fixing block (10). The fixing rod (11) is connected to the fixing block (10).

3. A car hood hinge according to claim 2, characterized in that: The upper side wall of the fixing box (8) is provided with a through hole, and a hand handle (12) is provided at one end of the side wall of the fixing block (10). The hand handle (12) passes through the through hole and is slidably connected to it.

4. A car hood hinge according to claim 2, characterized in that: The auxiliary component includes a second spring (13) and a telescopic rod (14). The second spring (13) is evenly distributed on one side of the sliding rod (18). The telescopic rod (14) is between the second springs (13). An auxiliary plate (15) is provided at one end of the second spring (13). One end of the telescopic rod (14) is connected to the auxiliary plate (15).

5. A car hood hinge according to claim 4, characterized in that: An mounting plate (16) is provided on the outside of the auxiliary plate (15), and screw holes (17) are provided at the four corners of the mounting plate (16).

6. A car hood hinge according to claim 1, characterized in that: The groove of the mounting rod (2) is provided with an inner wear-resistant layer, which is a ceramic coating.

7. A car hood hinge according to claim 5, characterized in that: The inner wall of the screw hole (17) is provided with a reinforcing layer, which is a metal insert with threads on the inner side.

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