Stretch-resistant tail door hinge

Abstract

The utility model discloses a stretching-resistant tail door hinge, relates to the technical field of tail door hinges, and aims to solve the technical problems that in the prior art, an existing tail door piece is arranged on the inner side of a vehicle body piece, the tail end of the tail door piece abuts against the vehicle body piece under the over-opening condition, and when the tail door piece is subjected to uncontrollable external force under the over-opening condition, the tail door piece is not prone to deformation. The contact area of the tail end of the tail door piece and the vehicle body piece is small, so that a tail door hinge is easy to damage, and subsequent use is not facilitated. A pin shaft is arranged between the vehicle body part and the tail door part, a vehicle body part connecting part is fixedly installed in the middle of the upper portion of the vehicle body part, a first connecting hole is formed in the vehicle body part connecting part, tail door part connecting parts are symmetrically and fixedly installed on the two sides of the upper portion of the tail door part respectively, and second connecting holes are formed in the tail door part connecting parts. A shaft body is arranged in the pin shaft, and bosses are fixedly installed on the upper portions of the two tail door piece connecting parts.

Description

Technical Field

[0001] The utility model relates to the technical field of tailgate hinges, in particular to a stretch-resistant tailgate hinge. Background Art

[0002] The tailgate hinge of a car is a device that allows the tailgate to rotate open and close naturally and smoothly. This device is mainly composed of a body part, a tailgate part and a pin. The body part is connected to the body, the tailgate part is connected to the tailgate, and the pin connects the body part and the tailgate part. The pin and the body part are fixed together by bolts or rivets, and the tailgate part can rotate around the pin.

[0003] The existing tailgate member is on the inner side of the body member. When the tailgate is over-opened, the rear end of the tailgate member contacts the body member, thereby restricting the movement of the tailgate. The disadvantage of this structure is that when the tailgate is over-opened and subjected to uncontrollable external forces, the contact area between the rear end of the tailgate member and the body member is relatively small, which can easily cause damage to the tailgate hinge and is not conducive to subsequent use. Therefore, the market urgently needs to develop a stretch-resistant tailgate hinge to help people solve the existing problem. Utility Model Content

[0004] The purpose of the present utility model is to provide a stretch-resistant tailgate hinge to solve the problem raised in the above-mentioned background art that the existing tailgate member is on the inner side of the body member. When the tailgate member is over-opened, the rear end of the tailgate member and the body member come into conflict. When the tailgate member is over-opened and subjected to uncontrollable external forces, the contact area between the rear end of the tailgate member and the body member is relatively small, which easily causes damage to the tailgate hinge and is not conducive to subsequent use.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a tensile-resistant tailgate hinge, comprising a body part and a tailgate part, a pin shaft is provided between the body part and the tailgate part, a body part connecting part is fixedly installed in the middle above the body part, a connecting hole 1 is provided inside the body part connecting part, tailgate part connecting parts are symmetrically fixedly installed on both sides above the tailgate part, a connecting hole 2 is provided inside the tailgate part connecting part, a shaft body is provided inside the pin shaft, the pin shaft passes through the connecting hole 1 of the body part connecting part and the connecting hole 2 of the tailgate part connecting part, the outer diameter of the shaft body of the pin shaft matches the inner diameter of the connecting hole 2, and a boss is fixedly installed above the two tailgate part connecting parts.

[0006] Preferably, buffer blocks are symmetrically bonded and installed on both sides of the upper side of the vehicle body part, and the buffer blocks are made of polyurethane material.

[0007] Preferably, a bushing is provided on the outside of the shaft body of the pin shaft, and two bushings are provided. A bushing inner hole is provided inside the bushing, and the diameter of the bushing inner hole matches the outer diameter of the shaft body.

[0008] Preferably, the two bushings are respectively arranged on both sides of an interior of a connection hole of the body part connection portion, a flange surface is fixedly mounted on one end of the outer side of the bushing, and the bushing is fixedly connected to the body part connection portion through the flange surface.

[0009] Preferably, a sealing gasket is bonded and installed below the tailgate member, and the sealing gasket is made of asbestos-free sealing material.

[0010] Preferably, a first mounting hole is provided inside the body part, and two first mounting holes are provided, and a second bolt is provided inside the first mounting hole of the body part.

[0011] Preferably, a second mounting hole is provided inside the tailgate member, and two second mounting holes are provided, and a first bolt is provided inside the second mounting hole of the tailgate member.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model has two bosses at the rear end of the tailgate member. When the tailgate is over-opened and subjected to uncontrollable external forces, the contact area between the rear end of the tailgate member and the body member is larger, which can ensure excellent tensile strength. Furthermore, by changing the structure of the tailgate hinge, the contact area between the rear end of the tailgate member and the body member is increased, thereby increasing the tensile strength and improving the service life of the hinge. This solves the problem that the tailgate hinge has poor tensile strength, resulting in large deformation of the hinge, poor stability, and easy damage to the tailgate hinge, which is not conducive to subsequent use.

[0014] 2. The utility model symmetrically adheres and installs buffer blocks made of polyurethane material on both sides above the body parts. When the tailgate is over-opened or subjected to sudden external force, it can effectively absorb impact energy, reduce vibration and noise, protect the hinge and surrounding components from damage, and enhance the durability and stability of the hinge.

[0015] 3. The utility model adopts bolt installation method for the body parts and tailgate parts, which can be firmly fixed to the car body and tailgate respectively, ensuring the stability and reliability of the hinge. At the same time, the setting of multiple mounting holes and bolts increases the redundancy of the connection. Even if a single bolt is loose or damaged, it will not affect the function of the entire hinge, thereby improving safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a stretch-resistant tailgate hinge according to the present invention;

[0017] Figure 2 This is an exploded schematic diagram of a stretch-resistant tailgate hinge according to the present invention;

[0018] Figure 3This is a schematic structural diagram of the tailgate member of the present invention;

[0019] Figure 4 This is a schematic structural diagram of the vehicle body component of the present invention.

[0020] In the figure: 1. Body part; 101. Mounting hole 1; 102. Body part connecting portion; 103. Connecting hole 1; 2. Tailgate part; 201. Boss; 202. Connecting hole 2; 203. Tailgate part connecting portion; 204. Mounting hole 2; 3. Pin; 301. Shaft; 4. Bolt 1; 5. Bushing; 501. Flange surface; 502. Inner hole of bushing; 6. Sealing gasket; 7. Buffer block; 8. Bolt 2. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figure 1-4 The present invention provides an embodiment of a stretch-resistant tailgate hinge, comprising a body part 1 and a tailgate part 2, a pin shaft 3 being provided between the body part 1 and the tailgate part 2, a body part connecting portion 102 being fixedly installed in the middle of the upper part of the body part 1, a connecting hole 103 being provided inside the body part connecting portion 102, tailgate part connecting portions 203 being symmetrically fixedly installed on both sides of the upper part of the tailgate part 2, a connecting hole 202 being provided inside the tailgate part connecting portion 203, a shaft body being provided inside the pin shaft 3 301, the pin 3 passes through the connecting hole 103 of the body part connecting portion 102 and the connecting hole 202 of the tailgate part connecting portion 203, so that the body part 1 and the tailgate part 2 can rotate around the pin 3. The outer diameter of the shaft body 301 of the pin 3 matches the inner diameter of the connecting hole 202. A boss 201 is fixedly installed above each of the two tailgate part connecting portions 203. The setting of the boss 201 increases the contact area between the tailgate part 2 and the body part 1, effectively disperses the tensile force, and improves the overall tensile strength.

[0023] When in use, the tailgate member 2 is on the outside of the body member 1, and has two bosses 201 at the rear end of the tailgate member 2. When subjected to uncontrollable external force and acting on the tailgate in the over-open state, the contact area between the rear end of the tailgate member 2 and the body member 1 is large, which can ensure excellent tensile strength. Furthermore, by changing the structure of the tailgate hinge, the contact area between the rear end of the tailgate member 2 and the body member 1 is increased, thereby increasing the tensile strength and improving the service life of the hinge. This solves the problem of poor tensile strength of the tailgate hinge, which leads to large deformation of the hinge, easily causing damage to the tailgate hinge, and is not conducive to subsequent use.

[0024] Furthermore, buffer blocks 7 are symmetrically bonded and installed on both sides above the body part 1, which can have a good buffering effect in the case of over-opening and stretching. The buffer blocks 7 are made of polyurethane material. When the tailgate is over-opened or subjected to sudden external force, the buffer blocks made of polyurethane material can effectively absorb impact energy, reduce vibration and noise, protect the hinge and surrounding components from damage, and enhance the durability and stability of the hinge.

[0025] Furthermore, a bushing 5 is provided on the outside of the shaft body 301 of the pin shaft 3, and two bushings 5 are provided. A bushing inner hole 502 is provided inside the bushing 5. The diameter of the bushing inner hole 502 matches the outer diameter of the shaft body 301. The two bushings 5 are respectively provided on both sides of the connection hole 103 of the body part connection part 102. The setting of the bushing 5 reduces the direct friction between the shaft body 301 and the connection hole 103, reduces wear, extends the service life, and improves the flexibility and stability of the tailgate opening and closing. A flange surface 501 is fixedly installed at one end of the outer side of the bushing 5. The bushing 5 is fixedly connected to the body part connection part 102 through the flange surface 501. Fixing the bushing 5 through the flange surface 501 is not only easy to install, but also firmly connected, thereby preventing the bushing 5 from loosening or falling off during use, thereby ensuring the stability and reliability of the pin shaft 3.

[0026] Furthermore, a sealing gasket 6 is bonded and installed under the tailgate member 2. The sealing gasket 6 is made of asbestos-free sealing material. The gasket made of asbestos-free sealing material has good sealing and corrosion resistance, effectively preventing impurities such as dust and moisture from entering the gap between the tailgate and the tailgate member 2, and the asbestos-free material is also more environmentally friendly.

[0027] Furthermore, a mounting hole 101 is provided inside the body part 1, and there are two mounting holes 101. A bolt 2 8 is provided inside the mounting hole 101 of the body part 1, and the bolt 2 8 is used to connect the body part 1 to the car body. A mounting hole 2 204 is provided inside the tailgate part 2, and there are two mounting holes 204. A bolt 4 is provided inside the mounting hole 204 of the tailgate part 2, and the bolt 4 is used to connect the tailgate part 2 to the tailgate of the car. Through the bolt connection, the body part 1 and the tailgate part 2 can be firmly fixed to the car body and the tailgate respectively, ensuring the stability and reliability of the hinge. At the same time, the provision of multiple mounting holes and bolts increases the redundancy of the connection. Even if a single bolt is loose or damaged, it will not affect the function of the entire hinge, thereby improving safety and reliability.

[0028] Working principle: When in use, the boss 201 above the tailgate member connection part 203 is set to increase the contact area between the tailgate member 2 and the body member 1, effectively disperse the tensile force, and improve the overall tensile strength. When subjected to uncontrollable external force, especially when the tailgate is in an over-open state, the contact surface between the boss 201 and the body member 1 ensures the tensile performance, reduces the deformation of the hinge, and improves its stability. At the same time, the polyurethane buffer block 7 installed above the body member 1 can absorb the impact energy when the tailgate is over-opened or impacted, reduce vibration and noise, and further protect the hinge and surrounding components. In addition, the body member 1 and the tailgate member 2 are connected by bolts to ensure the firm connection between the hinge and the car body and tailgate, thereby improving the stability and reliability of the hinge.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A stretch-resistant tailgate hinge, comprising a vehicle body member (1) and a tailgate member (2), characterized in that: A pin shaft (3) is provided between the body part (1) and the tailgate part (2); a body part connecting portion (102) is fixedly installed in the middle of the upper portion of the body part (1); a first connecting hole (103) is provided inside the body part connecting portion (102); tailgate part connecting portions (203) are symmetrically fixedly installed on both sides of the upper portion of the tailgate part (2); a second connecting hole (202) is provided inside the tailgate part connecting portion (203); an axis body (301) is provided inside the pin shaft (3); the pin shaft (3) passes through the first connecting hole (103) of the body part connecting portion (102) and the second connecting hole (202) of the tailgate part connecting portion (203); the outer diameter of the axis body (301) of the pin shaft (3) matches the inner diameter of the second connecting hole (202); and bosses (201) are fixedly installed above the two tailgate part connecting portions (203).

2. The stretch-resistant tailgate hinge according to claim 1, characterized in that: Buffer blocks (7) are symmetrically bonded and installed on both sides of the upper side of the vehicle body part (1), and the buffer blocks (7) are made of polyurethane material.

3. The stretch-resistant tailgate hinge according to claim 1, characterized in that: A bushing (5) is provided on the outside of the shaft body (301) of the pin shaft (3), and two bushings (5) are provided. A bushing inner hole (502) is provided inside the bushing (5), and the diameter of the bushing inner hole (502) matches the outer diameter of the shaft body (301).

4. The stretch-resistant tailgate hinge according to claim 3, characterized in that: The two bushings (5) are respectively arranged on both sides of the inside of the connection hole (103) of the body part connection part (102); a flange surface (501) is fixedly installed at one end of the outer side of the bushing (5); and the bushing (5) is fixedly connected to the body part connection part (102) through the flange surface (501).

5. The stretch-resistant tailgate hinge according to claim 1, characterized in that: A sealing gasket (6) is bonded and installed below the tailgate member (2), and the sealing gasket (6) is made of asbestos-free sealing material.

6. The stretch-resistant tailgate hinge according to claim 1, characterized in that: The vehicle body part (1) is provided with a first mounting hole (101) inside, and two first mounting holes (101) are provided. The first mounting hole (101) of the vehicle body part (1) is provided with a second bolt (8) inside.

7. The stretch-resistant tailgate hinge according to claim 1, characterized in that: The tailgate member (2) is provided with a second mounting hole (204) inside, and there are two second mounting holes (204). A first bolt (4) is provided inside the second mounting hole (204) of the tailgate member (2).

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