Exposure type hinge

Abstract

The utility model discloses an exposed type hinge, including the car door page and the car body page of installing on the car body through the car door page fixed bolt and the car door connection, and the car door page includes the car door fixed page, is equipped with the car door connecting arm on the car door fixed page, and the car body page includes the car body fixed page, is equipped with the car body connecting arm on the car body fixed page, is provided with the pin shaft blind hole on the car door connecting arm, is provided with the pin shaft through -hole on the car body connecting arm, one end of pin axle is connected with pin axle through -hole, and the other end is connected with pin axle blind hole, and the car door page is through pin axle riveting after the car body page, passes through the locking bolt fixed connection again, is equipped with the bolt fixed blind hole of matching with the car door page fixed bolt on the car door fixed page, and the car door page fixed bolt is connected with bolt fixed blind hole.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to an exposed hinge. Background Technology

[0002] In the automotive manufacturing industry, exposed door hinges are widely used in off-road vehicles. In existing technologies, the connection between the hinge pin and the door leaf is mainly achieved through riveting or screwing, while the connection between the door leaf and the door is achieved using external bolts.

[0003] For exposed door hinges, which require extremely high rust resistance, these connection methods reveal significant flaws. Due to the gaps at the joints, rainwater easily seeps into these gaps during rainy weather. Over time, this erosion will severely impact the hinge's corrosion resistance, greatly shortening its lifespan. Furthermore, when off-road vehicles are driven outdoors, dust and mud easily accumulate in these crevices. On the one hand, cleaning is extremely inconvenient, requiring considerable time and effort, increasing vehicle maintenance costs; on the other hand, the accumulated dirt severely affects the vehicle's appearance, reducing its overall aesthetic appeal.

[0004] In summary, the existing exposed door hinge connection structure has many shortcomings in terms of rust prevention and cleaning, and there is an urgent need for a new connection structure to overcome these defects in order to meet the usage requirements of off-road vehicles in complex outdoor environments. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the current exposed hinges, the present invention provides an exposed hinge that can effectively prevent rainwater and dust from entering and accumulating, enhance corrosion resistance, and prevent dust and mud from entering the gaps and affecting the appearance.

[0006] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0007] An exposed hinge includes a door panel connected to a door via door panel fixing bolts and a body panel mounted on the vehicle body. The door panel includes a door fixing plate with a door connecting arm. The body panel includes a body fixing plate with a body connecting arm. The door connecting arm has a pin blind hole and a pin through hole. One end of the pin is connected to the pin through hole, and the other end is connected to the pin blind hole. The door panel and the body panel are riveted together by the pin and then fixedly connected by locking bolts. The door fixing plate has bolt fixing blind holes that match the door panel fixing bolts, and the door panel fixing bolts are connected to the bolt fixing blind holes.

[0008] According to one aspect of the present invention, the pin includes a limiting part, and the limiting part is provided with rod parts at both the upper and lower ends. The upper rod part is provided with straight-lined teeth, and the upper and lower rod parts are respectively connected to the pin blind hole and the pin through hole.

[0009] According to one aspect of this utility model, the door leaf fixing bolt is a Y-head bolt, and the bolt fixing blind hole includes a Y-head through hole and a Y-head limiting hole. The Y-head through hole is connected to the Y-head limiting hole, and the Y-head limiting hole is used to limit the rotation of the Y-head bolt.

[0010] According to one aspect of this utility model, the door leaf fixing bolt is a press-fit bolt, and the bolt fixing blind hole is a press-fit hole that matches the press-fit bolt.

[0011] According to one aspect of this utility model, the door leaf fixing bolt is an expansion bolt, and the bolt fixing blind hole is an expansion hole that matches the expansion bolt.

[0012] According to one aspect of the present invention, the expansion bolt is provided with a flange portion, and the bolt fixing blind hole is provided with a flange groove that matches the flange portion. The flange portion is connected to the flange groove, and the flange portion is used to limit the rotation of the expansion bolt.

[0013] According to one aspect of this utility model, the door leaf fixing bolt is a projection weld bolt, and the bolt fixing blind hole is a projection weld bolt hole that matches the projection weld bolt.

[0014] According to one aspect of this utility model, the pin is a hollow pin.

[0015] According to one aspect of the present invention, the lower part of the pin is provided with an internal thread.

[0016] According to one aspect of the present invention, bushings are provided at both the upper and lower ends of the pin through hole, and the pin is connected to the pin through hole through the bushings.

[0017] The advantages of this invention are as follows: The use of blind bolt holes and through-holes in the pins achieves a seamless design on the exposed surfaces, preventing rainwater and dust from penetrating into the pins or door hinge fixing bolts, thus reducing corrosion risk and enhancing the hinge's aesthetics. The body and door hinges are connected by pins and locking bolts, facilitating easy assembly and disassembly, reducing manufacturing costs, and employing a modular design with replaceable parts, resulting in low maintenance costs. The knurled teeth on the upper part of the pin increase friction between the pin and the door connecting arm, ensuring the pin is less prone to rotation or being pulled out under friction, thereby improving the stability of the pin connection. The hollow design of the pin ensures that after pressing the pin into the blind hole, air within the blind hole can smoothly escape along the hollow portion of the pin. After riveting, the outer surface of the pin is encased by the body and door hinges, improving corrosion resistance and the overall aesthetic appearance of the hinge. The exposed hinge provided by this utility model can effectively prevent rainwater and dust from entering and accumulating, enhance corrosion resistance, and prevent dust and mud from entering the gaps and affecting the appearance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in 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.

[0019] Figure 1 This is an exploded view of an exposed hinge according to the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of Embodiment 4 of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of Embodiment 3 of this utility model;

[0023] Figure 5 This is a structural schematic diagram of Embodiment 5 of the present invention.

[0024] The names corresponding to the serial numbers in the diagram are as follows:

[0025] 1. Door panel; 11. Door connecting arm; 111. Pin blind hole; 12. Door fixing panel; 1211. Y-head through hole; 1212. Y-head limiting hole; 1213. Press-fit hole; 1214. Expansion tube hole; 12141. Flange groove; 1215. Projection weld bolt hole; 2. Body panel; 21. Body fixing panel; 211. Body fixing hole; 22. Body connecting arm; 221. Pin through hole; 3. Pin; 31. Straight knurled teeth; 32. Rod part; 33. Limiting part; 4. Bushing; 5. Gasket; 61. Projection weld bolt; 62. Expansion tube bolt; 621. Flange part; 63. Press-fit bolt; 64. Y-head bolt; 7. Locking bolt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0029] Example 1

[0030] like Figure 1 , Figure 2 , Figure 3, Figure 4 and Figure 5 As shown, an exposed hinge is mainly installed on vehicles, and is commonly used in off-road vehicles. The hinge can be made of metal, preferably steel or aluminum. It includes a door panel 1 fixedly connected to the door by door panel fixing bolts and a body panel 2 installed on the vehicle body. The door panel 1 includes a door fixing panel 12, on which a door connecting arm 11 is fixedly connected. The body panel 2 includes a body fixing panel 21, on which a body connecting arm 22 is fixedly connected. The body fixing panel 21 has a body fixing hole 211, and the body panel 2 is fixedly installed on the vehicle body by bolts. The door connecting arm 11 has a pin blind hole 111, meaning the upper end of the door connecting arm 11 is not penetrated. The body connecting arm 22 is provided with a pin through hole 221. One end of the pin 3 is connected to the pin through hole 221, and the other end is connected to the pin blind hole 111. The door leaf 1 and the body leaf 2 are riveted together by the pin 3 and then fixedly connected by the locking bolt 7. That is, after the pin 3 is riveted, it provides a basic support for the connection between the door leaf and the body leaf. The connection between the door leaf 1 and the body leaf 2 is achieved by the locking bolt 7. The door fixing leaf 12 is provided with a bolt fixing blind hole that matches the door leaf fixing bolt. The door leaf fixing bolt is connected to the bolt fixing blind hole. The door leaf fixing bolt is installed on the bolt fixing blind hole and then connected to the door leaf fixing bolt by a nut, fixing the door leaf 1 to the door. This prevents the door leaf fixing bolt from being exposed, effectively improving corrosion resistance and hinge appearance. By using blind holes for bolt fixing and through holes for pin shafts 221, the exposed surface is seamless, which prevents rainwater and dust from penetrating into the pin shaft 3 or the door leaf fixing bolts, reducing the risk of rainwater and other substances corroding the hinge and improving the aesthetic performance of the hinge.

[0031] In this embodiment, the pin 3 includes a limiting part 33, and both the upper and lower ends of the limiting part 33 are provided with rod parts 32. The upper rod part is provided with straight-lined teeth 31. Preferably, the straight-lined teeth 31 are provided close to the limiting part 33. The upper rod part can be provided with straight-lined teeth 31 on its entire outer surface, or it can be provided with straight-lined teeth 31 in a partial area. The upper and lower rod parts are respectively connected to the pin blind hole 111 and the pin through hole 221. The straight-lined teeth 31 can increase the friction between the pin 3 and the door connecting arm 11, ensuring that the pin 3 is not easily rotated or pulled out under the action of friction, thereby improving the stability of the pin connection.

[0032] In this embodiment, the pin 3 is a hollow pin with an internal thread on its lower part for easy connection with the locking bolt 7. The hollow design of the pin 3 ensures that after the pin is pressed into the pin blind hole 111, the gas in the blind hole can be smoothly discharged along the hollow part of the pin 3.

[0033] In this embodiment, bushings 4 are provided at both the upper and lower ends of the pin through hole 221, and the pin 3 is connected to the pin through hole 221 through the bushings 4. That is, the bushings 4 are provided between the pin 3 and the pin through hole 221. A shim 5 is provided between the locking bolt 7 and the body panel 2. The bushings 4 reduce the rotational friction between the pin and the body panel, making the door opening and closing smoother, and at the same time, enhancing the wear resistance and service life of the hinge. The shim 5 controls the assembly gap and prevents the bolt from loosening after the exposed hinge has been opened and closed repeatedly.

[0034] The beneficial effects of this embodiment are as follows: The blind hole for bolt fixing and the through hole 221 for the pin shaft ensure a seamless exposed surface, preventing rainwater and dust from penetrating into the pin shaft 3 or the fixing bolts of the door leaf 1, reducing the risk of rainwater corrosion on the hinge, and improving the hinge's aesthetics. The body leaf 2 and the door leaf 1 are connected by the pin shaft 3 and locking bolts 7, facilitating easy assembly and disassembly, reducing manufacturing costs, and employing a modular design with replaceable parts, resulting in low maintenance costs. The knurled teeth 31 on the upper part of the pin shaft increase the friction between the pin shaft 3 and the door connecting arm 11, ensuring that the pin shaft 3 is not easily rotated or pulled out under friction, thus improving the stability of the pin shaft 3 connection. The hollow design of the pin shaft 3 ensures that after the pin shaft 3 is pressed into the blind hole 111, the air inside the blind hole can smoothly escape along the hollow portion of the pin shaft 3. After the pin 3 is riveted, its outer surface is enclosed by the body panel 2 and the door panel 1, preventing it from being exposed. This improves corrosion resistance and the overall aesthetics of the hinge. The exposed hinge provided in this embodiment features a closed design for the entire door panel structure, effectively preventing the entry and accumulation of rainwater and dust, increasing corrosion resistance, and preventing dust and mud from entering the gaps and affecting the appearance.

[0035] Example 2

[0036] The difference between this embodiment and Embodiment 1 is that, in this embodiment, as... Figure 2As shown, the door panel fixing bolt is a Y-head bolt 64. The bolt fixing blind hole includes a Y-head through hole 1211 and a Y-head limiting hole 1212. The Y-head through hole 1211 is connected to the Y-head limiting hole 1212, and the Y-head limiting hole 1212 is used to limit the rotation of the Y-head bolt 64. The cross-sectional dimension of the Y-head through hole 1211 is larger than the cross-sectional dimension of the Y-head limiting hole 1212. Preferably, the Y-head through hole 1211 allows the head of the Y-head bolt 64 to enter the through hole of the Y-head through hole 1211. Y-head limiting holes 1212 are provided on both sides of the Y-head through hole 1211. Generally, two Y-head bolts 64 are provided, respectively located in the Y-head limiting holes 1212 on both sides of the Y-head through hole 1211.

[0037] During installation, first insert the Y-head bolt 64 into the Y-head through hole 1211, then move the Y-head bolt 64 left and right so that the head of the Y-head bolt 64 can enter the Y-head limiting hole 1212, which is used to limit the rotation and disengagement of the Y-head bolt 64. Then, fasten the door leaf 1 to the door with a nut.

[0038] The beneficial effects of this embodiment are as follows: by setting the Y-head limiting hole 1212, the rotation and disengagement of the Y-head bolt 64 can be limited, making it difficult for the Y-head bolt 64 to rotate. At the same time, the spacing of the Y-head bolt 64 can be freely adjusted. The Y-head bolt 64 has high structural strength, is easy to disassemble and replace, and is suitable for both steel and aluminum hinges, making it widely applicable.

[0039] Example 3

[0040] The difference between this embodiment and Embodiment 1 is that, in this embodiment, as... Figure 4 As shown, the door panel fixing bolt is a press-fit bolt 63, and the bolt fixing blind hole is a press-fit hole 1213 that matches the press-fit bolt 63. After the head of the press-fit bolt 63 is fixedly connected to the door panel 12 through the press-fit hole 1213, the door panel 12 is then fixedly installed on the door by a nut. The press-fit bolt 63 adopts a special bolt riveting structure, which can accept more material and significantly improves the pull-out strength.

[0041] The beneficial effect of this embodiment is that the press-fit bolt 63 is connected to the door fixing page 12 through the press-fit structure, thereby enhancing the pull-out strength and simplifying the structure.

[0042] Example 4

[0043] The difference between this embodiment and Embodiment 1 is that, in this embodiment, as... Figure 3As shown, the door leaf fixing bolt is an expansion bolt 62, and the bolt fixing blind hole is an expansion hole 1214 that matches the expansion bolt 62. After the head of the expansion bolt 62 is fixedly connected to the door fixing leaf 12 through the expansion hole 1214, the door leaf 1 is fixedly installed on the door by a nut.

[0044] In this embodiment, the expansion bolt 62 is provided with a flange portion 621, and the bolt fixing blind hole matches the flange portion 621 with a flange groove 12141. The flange portion 621 is connected to the flange groove 12141, and the flange portion 621 is used to limit the rotation of the expansion bolt 62. Preferably, the flange portion 621 can be set as a square, hexagonal, triangular, or other shape that can limit the movement, effectively preventing the expansion bolt 62 from rotating when the door leaf is installed on the door. Through the special expansion bolt structure design, the structure is simple and the strength is high after the expansion bolt is fixed.

[0045] The beneficial effects of this embodiment are as follows: by adding a flange 621 to the expansion bolt 62, the rotation of the expansion bolt 62 can be effectively prevented, and the limiting function of the expansion bolt 62 can be realized. At the same time, the expansion structure adopted has the characteristics of high strength and simple structure.

[0046] Example 5

[0047] The difference between this embodiment and Embodiment 1 is that, in this embodiment, as... Figure 5 As shown, the door leaf fixing bolt is a projection weld bolt 61, and the bolt fixing blind hole is a projection weld bolt hole 1215 that matches the projection weld bolt 61. After the head of the projection weld bolt 61 is fixedly connected to the door fixing leaf 12 by projection welding, the door leaf 1 is fixedly installed on the door by a nut. The bolt has high strength after projection welding, ensuring that the door leaf is installed firmly. Moreover, the projection weld bolt 61 is a conventional bolt, which is easy to process and produce, and has low cost.

[0048] The advantages of this embodiment are as follows: by connecting the projection welding bolt to the door fixing leaf 12 using projection welding technology, a high-strength connection can be achieved, ensuring the stability of the door leaf installation. Furthermore, projection welding bolts, as standard bolts, are easy to process and produce, and are inexpensive.

[0049] The advantages of this invention are as follows: The use of blind bolt holes and through-holes in the pins achieves a seamless design on the exposed surfaces, preventing rainwater and dust from penetrating into the pins or door hinge fixing bolts, thus reducing corrosion risk and enhancing the hinge's aesthetics. The body and door hinges are connected by pins and locking bolts, facilitating easy assembly and disassembly, reducing manufacturing costs, and employing a modular design with replaceable parts, resulting in low maintenance costs. The knurled teeth on the upper part of the pin increase friction between the pin and the door connecting arm, ensuring the pin is less prone to rotation or being pulled out under friction, thereby improving the stability of the pin connection. The hollow design of the pin ensures that after pressing the pin into the blind hole, air within the blind hole can smoothly escape along the hollow portion of the pin. After riveting, the outer surface of the pin is encased by the body and door hinges, improving corrosion resistance and the overall aesthetic appearance of the hinge. The exposed hinge provided by this utility model effectively prevents rainwater and dust from entering and accumulating, enhances corrosion resistance, and prevents dust and mud from entering the gaps and affecting the appearance. The above description is merely a specific embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. An exposed hinge, comprising a door panel (1) connected to a door via door panel fixing bolts and a body panel (2) mounted on a vehicle body, wherein the door panel (1) includes a door fixing panel (12) having a door connecting arm (11) thereon, and the body panel (2) includes a body fixing panel (21) having a body connecting arm (22) thereon, characterized in that, The door connecting arm (11) is provided with a pin blind hole (111), and the body connecting arm (22) is provided with a pin through hole (221). One end of the pin (3) is connected to the pin through hole (221), and the other end is connected to the pin blind hole (111). The door leaf (1) and the body leaf (2) are riveted by the pin (3) and then fixedly connected by the locking bolt (7). The door fixing leaf (12) is provided with a bolt fixing blind hole that matches the door leaf fixing bolt. The door leaf fixing bolt is connected to the bolt fixing blind hole.

2. The exposed hinge according to claim 1, characterized in that, The pin (3) includes a limiting part (33), and the limiting part (33) has a rod part (32) at both the upper and lower ends. The upper rod part is provided with straight-lined teeth (31). The upper and lower rod parts are respectively connected to the pin blind hole (111) and the pin through hole (221).

3. The exposed hinge according to claim 1, characterized in that, The door leaf fixing bolt is a Y-head bolt (64). The bolt fixing blind hole includes a Y-head through hole (1211) and a Y-head limiting hole (1212). The Y-head through hole (1211) is connected to the Y-head limiting hole (1212). The Y-head limiting hole (1212) is used to limit the rotation of the Y-head bolt (64).

4. The exposed hinge according to claim 1, characterized in that, The door leaf fixing bolt is a press-fit bolt (63), and the bolt fixing blind hole is a press-fit hole (1213) that matches the press-fit bolt (63).

5. The exposed hinge according to claim 1, characterized in that, The door leaf fixing bolt is an expansion bolt (62), and the bolt fixing blind hole is an expansion hole (1214) that matches the expansion bolt (62).

6. The exposed hinge according to claim 5, characterized in that, The expansion bolt (62) is provided with a flange portion (621), and the bolt fixing blind hole is provided with a flange groove (12141) that matches the flange portion (621). The flange portion (621) is connected to the flange groove (12141), and the flange portion (621) is used to limit the rotation of the expansion bolt (62).

7. The exposed hinge according to claim 1, characterized in that, The door leaf fixing bolt is a projection weld bolt (61), and the bolt fixing blind hole is a projection weld bolt hole (1215) that matches the projection weld bolt (61).

8. The exposed hinge according to claim 2, characterized in that, The pin (3) is a hollow pin.

9. The exposed hinge according to claim 8, characterized in that, The lower part of the pin (3) is provided with an internal thread.

10. The exposed hinge according to claim 1, characterized in that, Both ends of the pin through hole (221) are provided with bushings (4), and the pin (3) is connected to the pin through hole (221) through the bushings (4).

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