Automotive hood hinge

Abstract

This utility model relates to the technical field of automotive hood hinges, and discloses an automotive hood hinge including a rotating connecting hinge assembly. The bottom of the rotating connecting hinge assembly is connected to a buffer connecting hinge assembly via a limiting hinge assembly. The limiting hinge assembly is installed inside a movable connecting protective shell. By installing the buffer connecting hinge assembly on the device, this utility model provides a stable cushioning effect when opening and closing the hood, thus preventing the risk of injury from rapid closing.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive hood hinges, specifically an automotive hood hinge. Background Technology

[0002] The car hood, also known as the engine cover, protects the car's engine, battery, alternator, radiator, power steering pump, and other auxiliary equipment. Its internal heat insulation and flame-retardant layers provide flame retardancy and sound insulation, and its streamlined design helps reduce wind resistance, minimize sunlight refraction, and prevent rainwater from entering the engine compartment. The hood hinge, a key component connecting the hood to the car body, is responsible for opening and closing the hood. In traditional designs, hood hinges are often located at the rear edge of the hood. However, this location requires the placement of components such as windshield wipers and spray nozzles, and limited space can cause interference between the hinge and other components on the hood, resulting in an unreasonable layout. Furthermore, some existing hood hinges are unstable in terms of surface adjustment. For example, some hood hinges have a vertical plate-like upper hinge base, which is difficult to stably support the limiting post. After adjusting the surface difference, misalignment between the limiting post and the upper hinge base can easily lead to adjustment failure. Meanwhile, with the rapid development of the automotive industry, consumers have increasingly higher requirements for vehicle appearance. The surface difference between the hood and fender has become a key area of ​​concern in terms of appearance. How to better solve the appearance matching problem has also posed new challenges to the design of hood hinges. In terms of materials, structural forms, and driving methods, automotive hood hinges are also diversified. Materials include steel, aluminum alloy, and stainless steel; structural forms include single-point hinges, multi-point hinges, and side-mounted hinges; and driving methods include manual, electric, and pneumatic. Different types of hinges have their own advantages and disadvantages in different scenarios. For example, manual hinges are simple in structure and low in cost, and are mostly used in small vehicles; electric hinges are driven by a motor and can achieve automatic opening and closing.

[0003] Application number CN201420731887.7 discloses an automotive engine hood hinge, including an upper hinge support and a lower hinge support, which are connected by a hinge pin. The upper hinge support has a side plate 1 and a side plate 2. The side plate 1 is mounted on the surface of the lower hinge support. The side plate 2 has a circular hole 1, a circular hole 2, and a circular hole 3 arranged side by side. The lower hinge support has a circular hole 4 and a circular hole 5. The radii of the circular holes 1, 2, and 3 are all different, and the radii of the circular holes 4 and 5 are also different. The beneficial effects of this utility model are as follows: Compared with the prior art, this technology is composed of an upper hinge support and a lower hinge support connected by a hinge pin, which makes the structure simpler and more convenient, facilitating large-scale production and manufacturing, thereby reducing costs and improving economic efficiency; the connection between the upper hinge support and the lower hinge support by the hinge pin results in better stability and strength; the connection between the upper hinge support and the lower hinge support by the hinge pin also occupies less space; however, there is a drawback: when the device is in use, the weight of the cover may cause it to close too quickly during opening and closing, which may pose a risk of accidental injury to personnel. Utility Model Content

[0004] The purpose of this invention is to provide an automotive hood hinge that addresses the potential risk of injury to personnel when the hood closes too quickly due to its weight during opening and closing.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is an automotive hood hinge, including a rotating connecting hinge page assembly. The bottom of the rotating connecting hinge page assembly is connected to a buffer connecting hinge page assembly through a limiting hinge assembly. The limiting hinge assembly is limited and installed inside the rotating connecting protective shell. The buffer hinge assembly includes a connecting semi-circular arc support, a buffer post, and a buffer spring. One end of the connecting semi-circular arc support on both sides is limited and installed outside the limiting slide posts on both sides, and the connecting semi-circular arc support is limited between the limiting slide posts and the movable protective shell. At the same time, a limiting post is installed in the middle of the connecting semi-circular arc support on both sides, and the connecting semi-circular arc support on both sides extends to the outside of the movable protective shell. A connecting fixing page is fixedly installed at the end of the connecting semi-circular arc support on both sides. The buffer post is correspondingly arranged between the two connecting semi-circular arc supports on the outer side, and the buffer spring is arranged outside the two connecting semi-circular arc supports on both sides.

[0006] Furthermore, the rotating connecting hinge page assembly includes a support plate, an arc plate is fixedly installed on the top of the support plate, and a connecting hinge page is fixedly installed on one side of the bottom of the support plate. At the same time, a limit hook plate is fixedly installed at the tail end of the bottom of the support plate, and a limit screw hole turntable is rotatably installed on the arc plate through a bearing.

[0007] Furthermore, the limiting hinge assembly includes a folding hinge and a limiting buckle. The folding hinge is limited by a limiting bolt and installed on both sides of the end of the connecting hinge page. Limiting slides are fixedly installed on both sides of the end of the folding hinge.

[0008] Furthermore, the limiting buckle is installed on both sides of the inner wall at the front end of the movable flip groove by a rotating rod, and a support plate is provided in the middle of the limiting buckle. At the same time, the limiting buckle and the limiting hook plate limit each other.

[0009] Furthermore, the movable connection protective shell includes a movable protective shell, the movable protective shell has a cavity inside, and a folding hinge is disposed inside the cavity. At the same time, a movable flip groove is provided at the top of one end of the movable protective shell, and a limiting twisting slide groove is provided on both sides of one end of the movable protective shell. A limiting slide post is installed inside the limiting twisting slide groove.

[0010] Furthermore, the buffer spring is positioned between the connecting fixed page and the movable protective shell.

[0011] This utility model has the following beneficial effects: (1) The present invention provides a car hood hinge by installing a buffer connecting hinge page assembly on the device, which can provide a relatively stable buffering effect when the hood is opened and closed, thus ensuring that the hood is closed too quickly and thus avoiding the risk of injury to the human body. (2) The present invention provides a car hood hinge by installing a rotating connecting hinge page assembly on the device, which can avoid the possibility of loosening that occurs when the device is installed in the movable groove by bolts in the traditional installation. By setting the rotating connecting hinge page assembly, after the fixing is completed, the rotation is only carried out by the shaft rotation, which can avoid the risk of loosening caused by long-term opening and closing.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1This is a schematic diagram of the overall structure of an automotive hood hinge according to the present invention; Figure 2 This is a schematic diagram of the front end structure of an automotive hood hinge according to the present invention; Figure 3 This is a cross-sectional view of a car hood hinge according to the present invention. Figure 4 This is a schematic diagram of the structure of a car hood hinge buffer connection hinge page assembly according to the present invention; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Rotating connecting hinge page assembly; 2. Limiting hinge assembly; 3. Matching connecting protective shell; 4. Buffer connecting hinge page assembly; 101. Support plate; 102. Arc plate; 103. Limiting screw hole turntable; 104. Connecting hinge page; 105. Limiting hook plate; 201. Folding hinge; 202. Limiting bolt; 203. Limiting slide post; 204. Limiting buckle; 205. Limiting post; 301. Movable protective shell; 302. Limiting twisting slide groove; 303. Movable flipping groove; 401. Linking semi-circular arc support bar; 402. Connecting fixing page; 403. Buffer post; 404. Buffer spring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-4 As shown, this utility model is an automotive hood hinge, including a rotating connecting hinge page assembly 1. The bottom of the rotating connecting hinge page assembly 1 is connected to a buffer connecting hinge page assembly 4 through a limiting hinge assembly 2. The limiting hinge assembly 2 is limited and installed inside the rotating connecting protective shell 3. The buffer hinge assembly 4 includes a connecting semi-circular arc support 401, a buffer post 403, and a buffer spring 404. One end of the connecting semi-circular arc support 401 on both sides is limited and installed outside the limiting slide posts 203 on both sides, and the connecting semi-circular arc support 401 is limited and set between the limiting slide posts 203 and the movable protective shell 301. At the same time, the middle limiting post 205 is installed on the connecting semi-circular arc support 401 on both sides, and the connecting semi-circular arc support 401 on both sides extends to the outside of the movable protective shell 301. The ends of the connecting semi-circular arc support 401 on both sides are fixedly installed with a connecting fixing page 402. The buffer post 403 is correspondingly set between the two connecting semi-circular arc support 401 on the outside, and the buffer spring 404 is set on the outside of the two connecting semi-circular arc support 401 on both sides.

[0017] By installing the buffered connecting hinge assembly 4 on the device, a relatively stable buffering effect can be provided when the cover is opened and closed, thus preventing the risk of injury to the human body caused by rapid closing.

[0018] The rotating connecting hinge assembly 1 includes a support plate 101. An arc plate 102 is fixedly installed on the top of the support plate 101, and a connecting hinge 104 is fixedly installed on one side of the bottom of the support plate 101. At the same time, a limit hook plate 105 is fixedly installed at the tail end of the bottom of the support plate 101. A limit screw hole turntable 103 is rotatably installed on the arc plate 102 through a bearing. The top of the support plate 101 in the rotating connecting hinge assembly 1 is connected to the machine cover, and the connecting hinge 104 at the bottom of the support plate 101 is connected to the folding hinge 201 in the limit hinge assembly 2 through a limit bolt 202.

[0019] The limiting hinge assembly 2 includes a folding hinge 201 and a limiting buckle 204. The folding hinge 201 is limited by a limiting bolt 202 and installed on both sides of the end of the connecting hinge page 104. The folding hinge 201 is fixedly installed on both sides of the end of the folding hinge 201. The connecting hinge page 104 at the bottom of the support plate 101 is connected to the folding hinge 201 in the limiting hinge assembly 2 by the limiting bolt 202. At this time, the folding hinge 201 is located in the internal cavity of the movable protective shell 301 of the moving connecting protective shell 3. The limiting bolt 203 is in the initial position in the limiting twisting groove 302. The limiting buckle 204 is installed on both sides of the inner wall of the front end of the movable flip groove 303 by a rotating rod, and is mutually limited with the limiting hook plate 105 to maintain the initial stable state.

[0020] The limit buckle 204 is installed on both sides of the inner wall at the front end of the movable flip groove 303 by means of a rotating rod, and the middle limit of the limit buckle 204 is provided with a support plate 101. At the same time, the limit buckle 204 and the limit hook plate 105 limit each other.

[0021] The movable connection protective shell 3 includes a movable protective shell 301. The movable protective shell 301 has a cavity inside, and a folding hinge 201 is disposed inside the cavity. At the same time, a movable flip groove 303 is provided on the top of one end of the movable protective shell 301, and a limiting twisting groove 302 is provided on both sides of one end of the movable protective shell 301. A limiting sliding column 203 is installed inside the limiting twisting groove 302.

[0022] The buffer spring 404 is positioned between the connecting fixed page 402 and the movable protective shell 301. One end of the connecting semi-circular arc support 401 of the buffer connecting hinge page assembly 4 moves with the limiting slide post 203. The connecting semi-circular arc support 401 slides between the limiting slide post 203 and the movable protective shell 301. The buffer spring 404 is stretched or compressed, absorbing the impact force generated when the cover is opened. The buffer post 403 also helps to stabilize the movement of the connecting semi-circular arc support 401.

[0023] The car hood hinge operates through the coordinated action of a rotating hinge assembly 1, a limiting hinge assembly 2, a moving connection protective shell 3, and a buffer hinge assembly 4. The rotating hinge assembly 1, as the basic component connecting to the hood, is connected to the buffer hinge assembly 4 via the limiting hinge assembly 2. When the hood opens and closes, the rotating hinge assembly 1 rotates, driving the limiting hinge assembly 2 to move. The limiting hinge assembly 2 is installed inside the moving connection protective shell 3, and its movement is restricted by the structure of the shell 3. Simultaneously, the mutual restraint between the limiting buckle 204 and the limiting hook plate 105 ensures the stability and accuracy of its movement. The buffer post 403 and buffer spring 404 in the buffer hinge assembly 4 play a role in buffering and shock absorption during the opening and closing of the hood, reducing impact force and protecting the hood and related components. In the working process, when the car hood needs to be opened, the top of the support plate 101 in the rotating hinge assembly 1 connects to the hood, and the connecting hinge 104 at the bottom of the support plate 101 is connected to the folding hinge 201 in the limiting hinge assembly 2 through the limiting bolt 202. At this time, the folding hinge 201 is located in the internal cavity of the movable protective shell 301 of the moving protective shell 3, and the limiting slide post 203 is in the initial position in the limiting torsion slide groove 302. The limit buckle 204 is installed on both sides of the inner wall of the front end of the movable flip groove 303 via a rotating rod, and is mutually limited with the limit hook plate 105 to maintain an initial stable state. When the cover is lifted up, the rotating connecting hinge page assembly 1 rotates around the limit screw hole turntable 103. The support plate 101 rotates, causing the connecting hinge page 104 to pull the folding hinge 201. The folding hinge 201 folds, and the limit sliding post 203 at its end slides in the limit twisting slide groove 302. At the same time, the limiting relationship between the limit buckle 204 and the limit hook plate 105 changes. As the rotation angle increases, the limit buckle 204 gradually disengages from the partial limit of the limit hook plate 105.During this process, one end of the connecting semi-circular arc support 401 of the buffer hinge assembly 4 moves with the limiting slide post 203. The connecting semi-circular arc support 401 slides between the limiting slide post 203 and the movable protective shell 301. The buffer spring 404 is stretched or compressed, absorbing the impact force generated when the hood opens. The buffer post 403 also helps to stabilize the movement of the connecting semi-circular arc support 401. When the hood opens to a suitable angle, the folding hinge 201 moves to the predetermined position, and the limiting slide post 203 slides to the corresponding limiting point in the limiting twisting slide groove 302. The limiting buckle 204 and the limiting hook plate 105 form a new stable limiting relationship, fixing the hood in the open state. The buffer spring 404 maintains a certain deformation to maintain the buffering effect. When the cover is lowered, the rotating connecting hinge assembly 1 rotates in the opposite direction, the folding hinge 201 folds in the opposite direction, and the limiting slide 203 slides in the opposite direction within the limiting twisting slide groove 302. The limiting relationship between the limiting buckle 204 and the limiting hook plate 105 changes again. The linkage semi-circular support 401 of the buffer connecting hinge assembly 4 moves in the opposite direction with the limiting slide 203. The buffer spring 404 gradually recovers its deformation and continues to buffer the impact force when the cover is closed until the cover is completely closed. All components return to their initial state, and the limiting buckle 204 and the limiting hook plate 105 restore their initial limiting relationship, completing one cover opening and closing operation.

[0024] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A car hood hinge, comprising a rotatably connected hinge leaf assembly (1), characterized in that: The bottom of the rotating connection hinge page assembly (1) is connected to the buffer connection hinge page assembly (4) via the limiting hinge assembly (2), and the limiting hinge assembly (2) is limited and installed inside the moving connection protective shell (3). The buffer connecting hinge assembly (4) includes a connecting semi-circular arc support (401), a buffer post (403), and a buffer spring (404). One end of the connecting semi-circular arc support (401) on both sides is limited and installed on the outside of the limiting slide post (203) on both sides. The connecting semi-circular arc support (401) is limited and set between the limiting slide post (203) and the movable protective shell (301). At the same time, the middle limit of the connecting semi-circular arc support (401) on both sides is limited and installed with a limiting post (205). The connecting semi-circular arc support (401) on both sides extends to the outside of the movable protective shell (301). The end of the connecting semi-circular arc support (401) on both sides is fixedly installed with a connecting fixing page (402). The buffer post (403) is correspondingly set between the connecting semi-circular arc support (401) on the outside. The buffer spring (404) is set on the outside of the connecting semi-circular arc support (401) on both sides.

2. The automotive hood hinge according to claim 1, characterized in that: The rotating connecting hinge page assembly (1) includes a support plate (101), an arc plate (102) is fixedly installed on the top of the support plate (101), and a connecting hinge page (104) is fixedly installed on one side of the bottom of the support plate (101). At the same time, a limit hook plate (105) is fixedly installed at the tail end of the bottom of the support plate (101). The arc plate (102) is rotatably mounted with a limit screw hole turntable (103) through a bearing.

3. The automotive hood hinge according to claim 1, characterized in that: The limiting hinge assembly (2) includes a folding hinge (201) and a limiting buckle (204). The folding hinge (201) is limited by a limiting bolt (202) and installed on both sides of the end of the connecting hinge page (104). Limiting slides (203) are fixedly installed on both sides of the end of the folding hinge (201).

4. A bonnet hinge according to claim 3, wherein: The limiting buckle (204) is installed on both sides of the inner wall at the front end of the movable flip groove (303) by a rotating rod, and a support plate (101) is provided in the middle of the limiting buckle (204). At the same time, the limiting buckle (204) and the limiting hook plate (105) limit each other.

5. A car hood hinge according to claim 1, characterized in that: The movable connection protective shell (3) includes a movable protective shell (301). The movable protective shell (301) has a cavity inside, and a folding hinge (201) is set inside the cavity. At the same time, a movable flip groove (303) is opened at the top of one end of the movable protective shell (301), and a limiting twisting groove (302) is opened on both sides of one end of the movable protective shell (301). A limiting sliding column (203) is installed inside the limiting twisting groove (302).

6. A hood hinge according to claim 1, characterized in that: The buffer spring (404) is positioned between the connecting fixed page (402) and the movable protective shell (301).

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