New energy pure electric rear cabin door hinge

Abstract

The utility model belongs to the technical field of cabin door hinges, and particularly relates to a new energy pure electric rear cabin door hinge which comprises a hinge base and a hinge rod body, the hinge rod body is formed by combining a straight-line-section rod body, a bent-section rod body and an inclined-section rod body, and the hinge rod body is formed through extrusion of a die-casting die. A first locking adjusting opening is formed in the surface of the linear section rod body, and a hinge groove is formed in one end of the bent section rod body. According to the new energy pure electric rear cabin door hinge, firstly, through precise design of a lubricating system, continuous lubrication of the hinge is ensured, abrasion is remarkably reduced, the service life is prolonged, and the reliability of the hinge is improved; secondly, excellent sealing performance is provided through the combination of the sealing ball and the sealing ring, leakage of lubricating oil is effectively prevented, cleanliness of the system is kept, and maintenance cost is reduced; in addition, according to the design, the environmental adaptability is improved, meanwhile, the user experience is improved, noise and vibration are reduced, and the attractiveness of the vehicle is kept.

Description

Technical Field

[0001] This utility model relates to the field of hatch hinge technology, and in particular to a new energy pure electric rear hatch hinge. Background Technology

[0002] There are several technical problems with existing electric vehicle rear door hinge technology that urgently need to be addressed. Traditional rear door hinges are often large and heavy, increasing the overall burden on the vehicle and making installation complex and disassembly difficult, thus causing inconvenience for maintenance and replacement. Furthermore, these hinges are prone to wear and poor lubrication during long-term use, leading to increased noise and vibration when opening and closing the rear door, and even potential safety hazards such as door detachment.

[0003] On the other hand, existing rear door hinges often require a considerable amount of space to open, which is a significant inconvenience for garages with limited space or crowded parking lots. Furthermore, the opened door may scrape or bump against surrounding objects, potentially damaging the vehicle and causing injury to nearby occupants. In addition, traditional hinge designs are often rudimentary, lacking style and aesthetics, and cannot meet the high demands of modern electric vehicles for appearance and user experience.

[0004] Therefore, a new type of pure electric rear door hinge is needed. Utility Model Content

[0005] Based on existing technical problems, this utility model proposes a new energy pure electric rear hatch hinge.

[0006] This utility model proposes a new energy pure electric rear door hinge, including a hinge base and a hinge rod. The hinge rod is composed of a straight section rod, a bent section rod, and an inclined section rod. The hinge rod is formed by extrusion molding using a die-casting mold. The surface of the straight section rod has a first locking adjustment port. One end of the bent section rod has a hinge groove. The inner wall of the hinge groove is rotatably connected to the cylindrical surface of one end of the hinge base. Both ends of the hinge groove have pin holes. A pin is slidably inserted into the inner wall of the pin hole through a key. The arc surface of the middle part of the pin is rotatably connected to the cylindrical inner wall of one end of the hinge base. One end of the pin is engaged with a retaining spring, which is located on one side of the hinge base.

[0007] The other end of the hinge seat has a second locking adjustment port, and the pin has a lubrication mechanism inside, which realizes the lubrication of the pin.

[0008] Preferably, the lubrication mechanism includes a lubrication storage cavity formed inside the pin, the lubrication storage cavity is filled with lubricating oil, and an oiling hole is formed on the inner wall of one end of the lubrication storage cavity, one end of the oiling hole passing through and extending to one end of the pin.

[0009] Preferably, a concealed refueling pipe is fixedly installed on the inner wall of one end of the refueling hole, a first limiting ring is fixedly installed on one end of the concealed refueling pipe, a first spring is fixedly installed on one side of the first limiting ring, a first sealing ball is fixedly installed on one end of the first spring, the diameter of the first sealing ball is larger than the inner diameter of one end of the concealed refueling pipe, and the arc surface of the first sealing ball is sealed to the inner wall of the refueling end of the concealed refueling pipe by a sealing ring.

[0010] Preferably, the inner wall of the cylindrical end of the hinge seat is provided with an annular groove, and a protrusion is fixedly installed on the inner wall of the annular groove. The middle section of the arc surface of the pin is provided with a lubrication outlet hole, and one end of the lubrication outlet hole is fixedly connected to the lubrication storage cavity.

[0011] Preferably, a lubrication pipe is fixedly installed on the inner wall of the top of the lubrication outlet hole, and the oil outlet end of the lubrication pipe corresponds to the inner wall of the annular groove.

[0012] Preferably, a second limiting ring is fixedly installed on the inner wall of the bottom end of the lubrication tube, a second spring is fixedly installed on the top of the second limiting ring, a second sealing ball is fixedly installed on the top of the second spring, and the arcuate surface of the second sealing ball is in extrusion contact with the surface of the protrusion.

[0013] Preferably, the diameter of the second sealing ball is larger than the inner diameter of the top end of the lubrication tube, and the arcuate surface of the second sealing ball is pressed and sealed against the inner wall of the top end of the lubrication tube by a sealing ring.

[0014] The beneficial effects of this utility model are as follows:

[0015] This project designs and develops a portable, detachable, quick-installation, and highly reliable rear door hinge that enables the hatchback-style opening of the rear door of buses, avoiding a series of problems caused by scratches, bumps, and space occupation when opening the rear door. The rear door hinge structure, tailor-made for new energy buses, features a novel design, smooth and flexible rotation, and convenient opening, achieving a hatchback-style rear door opening method. The design is stylish, aesthetically pleasing, practical, and meets the overall vehicle safety performance requirements, ensuring vehicle safety and comfort.

[0016] First, the precise lubrication system design ensures continuous lubrication of the hinge, significantly reducing wear, extending service life, and improving hinge reliability. Second, the combination of sealing balls and sealing rings provides excellent sealing performance, effectively preventing lubricant leakage, keeping the system clean, and reducing maintenance costs. Furthermore, this design improves environmental adaptability while enhancing the user experience, reducing noise and vibration, and maintaining the vehicle's aesthetics. Ultimately, this hinge design not only improves the overall performance of electric vehicles but also reduces energy consumption and maintenance frequency, providing users with a safer, more comfortable, and economical driving experience. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a new energy pure electric rear door hinge;

[0018] Figure 2 An exploded 3D view of a new type of pure electric rear door hinge;

[0019] Figure 3 A cross-sectional view of the pin structure of a new energy pure electric rear door hinge;

[0020] Figure 4 For a new energy pure electric rear hatch hinge Figure 3 Enlarged view of the structure at point A in the middle;

[0021] Figure 5 For a new energy pure electric rear hatch hinge Figure 3 Enlarged view of the structure at point B in the middle.

[0022] In the diagram: 1. Hinge seat; 2. Hinge rod; 21. Straight section rod; 22. Bent section rod; 23. Inclined section rod; 3. First locking adjustment port; 4. Hinge groove; 5. Pin hole; 6. Pin; 7. Snap ring; 8. Second locking adjustment port; 9. Lubrication storage chamber; 10. Oil filling hole; 11. Concealed oil filling pipe; 12. First limiting ring; 13. First spring; 14. First sealing ball; 15. Annular groove; 16. Protrusion; 17. Lubrication outlet hole; 18. Lubrication pipe; 19. Second limiting ring; 20. Second spring; 201. Second sealing ball. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-5A new energy pure electric rear door hinge includes a hinge base 1 and a hinge rod 2. The hinge rod 2 is composed of a straight section rod 21, a bent section rod 22 and an inclined section rod 23. The hinge rod 2 is formed by extrusion through a die-casting mold. The surface of the straight section rod 21 is provided with a first locking adjustment port 3. One end of the bent section rod 22 is provided with a hinge groove 4. The inner wall of the hinge groove 4 is rotatably connected to the cylindrical surface of one end of the hinge base 1. Both ends of the inner wall of the hinge groove 4 are provided with pin holes 5. The inner wall of the pin hole 5 is slidably inserted with a pin 6 through a key strip. The arc surface of the middle part of the pin 6 is rotatably connected to the cylindrical inner wall of one end of the hinge base 1. One end of the pin 6 is engaged with a retaining spring 7, which is located on one side of the hinge base 1.

[0025] Specifically, this is achieved by combining the straight section rod 21, the bent section rod 22, and the inclined section rod 23, making the hinge structure more compact, which helps reduce the overall vehicle weight and improve energy efficiency; the use of die-casting molds for extrusion molding ensures the strength and rigidity of the hinge rod 2, improving the safety and service life of the rear hatch; the first locking adjustment port 3 on the surface of the straight section rod 21 makes the installation and adjustment of the hinge more convenient, which helps improve production efficiency.

[0026] The other end of the hinge seat 1 is provided with a second locking adjustment port 8. The pin 6 is provided with a lubrication mechanism, which realizes the lubrication action of the pin 6. The lubrication mechanism includes a lubrication storage cavity 9 opened inside the pin 6. The lubrication storage cavity 9 is provided with lubricating oil. One end of the inner wall of the lubrication storage cavity 9 is provided with an oil filling hole 10. One end of the oil filling hole 10 passes through and extends to one end of the pin 6.

[0027] Specifically, the second locking adjustment port 8 provides another adjustment point, allowing for more precise adjustment of the rear door's position and clearance, ensuring proper door closure and sealing performance. The lubrication mechanism inside the pin 6 provides continuous lubrication for the hinge, which helps reduce wear and extend the hinge's service life. The presence of the oil filling hole 10 makes replenishing lubricating oil to the lubrication storage chamber 9 simple and quick, without disassembling the hinge, reducing maintenance difficulty and cost. Due to the lubrication mechanism, the hinge's maintenance cycle can be extended, reducing maintenance frequency.

[0028] A concealed refueling pipe 11 is fixedly installed on the inner wall of one end of the refueling hole 10. A first limiting ring 12 is fixedly installed on one end of the concealed refueling pipe 11. A first spring 13 is fixedly installed on one side of the first limiting ring 12. A first sealing ball 14 is fixedly installed on one end of the first spring 13. The diameter of the first sealing ball 14 is larger than the inner diameter of one end of the concealed refueling pipe 11. The arc surface of the first sealing ball 14 is sealed by the sealing ring against the inner wall of the refueling end of the concealed refueling pipe 11.

[0029] Specifically, the concealed refueling pipe 11 design makes the refueling process more discreet, does not affect the vehicle's appearance, and enhances the vehicle's aesthetics; the structural design of the first limiting ring 12 and the first sealing ball 14 can effectively prevent dust and dirt from entering the refueling pipe, keeping the lubrication system clean; the function of the first spring 13 allows the first sealing ball 14 to automatically reset after refueling, closing the refueling port and simplifying the refueling operation; the diameter of the first sealing ball 14 is larger than the inner diameter of the refueling pipe, ensuring that the sealing ball can effectively seal the refueling port during the refueling process, preventing accidental detachment or foreign objects from entering; due to the concealed design and automatic reset function of the refueling pipe, no complicated operations are required during maintenance, reducing the difficulty of maintenance.

[0030] The inner wall of the cylindrical end of the hinge seat 1 is provided with an annular groove 15, and a protrusion 16 is fixedly installed on the inner wall of the annular groove 15. The middle section of the arc surface of the pin 6 is provided with a lubrication outlet hole 17, and one end of the lubrication outlet hole 17 is fixedly connected to the lubrication storage cavity 9.

[0031] Specifically, the protrusion 16 in the annular groove 15 mates with the arc surface of the pin 6, which can evenly guide the lubricating oil in the lubrication storage cavity 9 to the contact surface between the pin 6 and the hinge seat 1 when the pin 6 rotates, ensuring the uniformity of lubrication; through the design of the lubrication outlet hole 17, the lubricating oil can flow directly to the contact area between the pin 6 and the hinge seat 1, enhancing the lubrication effect and improving the wear resistance and service life of the hinge.

[0032] A lubrication tube 18 is fixedly installed on the inner wall of the top of the lubrication outlet hole 17, and the oil outlet end of the lubrication tube 18 corresponds to the inner wall of the annular groove 15.

[0033] Specifically, the presence of the lubrication pipe 18 ensures that the lubricating oil can flow directly from the lubrication storage cavity 9 to the annular groove 15, achieving directional lubrication and improving lubrication efficiency. Due to the precise lubrication of the lubrication pipe 18, the wear between the pin 6 and the hinge seat 1 is reduced, extending the service life of the hinge.

[0034] A second limiting ring 19 is fixedly installed on the inner wall of the bottom end of the lubrication tube 18. A second spring 20 is fixedly installed on the top of the second limiting ring 19. A second sealing ball 201 is fixedly installed on the top of the second spring 20. The arc surface of the second sealing ball 201 is in contact with the surface of the protrusion 16.

[0035] Specifically, the second spring 20 applies pressure to the second sealing ball 201, ensuring the contact pressure between the sealing ball and the lubrication pipe 18 while the pin 6 is not rotating, thus maintaining the sealing effect. When the rear hatch hinges open, the protrusion 16 pushes the second sealing ball 201 to release the seal, thereby achieving the effect of lubricating oil flowing out for lubrication.

[0036] The diameter of the second sealing ball 201 is larger than the inner diameter of the top end of the lubrication tube 18, and the arc surface of the second sealing ball 201 is sealed by the sealing ring against the inner wall of the top end of the lubrication tube 18.

[0037] Specifically, since the diameter of the second sealing ball 201 is larger than the inner diameter of the top of the lubrication tube 18, a tighter seal can be formed when squeezed by the sealing ring, effectively preventing lubricating oil leakage.

[0038] This project designs and develops a portable, detachable, quick-installation, and highly reliable rear door hinge that enables the hatchback-style opening of the rear door of buses, avoiding a series of problems caused by scratches, bumps, and space occupation when opening the rear door. The rear door hinge structure, tailor-made for new energy buses, features a novel design, smooth and flexible rotation, and convenient opening, achieving a hatchback-style rear door opening method. The design is stylish, aesthetically pleasing, practical, and meets the overall vehicle safety performance requirements, ensuring vehicle safety and comfort.

[0039] First, the precise lubrication system design ensures continuous lubrication of the hinge, significantly reducing wear, extending service life, and improving hinge reliability. Second, the combination of sealing balls and sealing rings provides excellent sealing performance, effectively preventing lubricant leakage, keeping the system clean, and reducing maintenance costs. Furthermore, this design improves environmental adaptability while enhancing the user experience, reducing noise and vibration, and maintaining the vehicle's aesthetics. Ultimately, this hinge design not only improves the overall performance of electric vehicles but also reduces energy consumption and maintenance frequency, providing users with a safer, more comfortable, and economical driving experience.

[0040] Working principle: When the rear hatch of the electric vehicle needs to be opened or closed, the pin 6 in the control hinge rod 2 is rotated. Since the pin 6 is slidably inserted into the pin hole 5 through a key strip, the rotation of the pin 6 causes the hinge rod 2 to rotate around the cylindrical surface of one end of the hinge seat 1. During this process, the first locking adjustment port 3 of the straight segment rod 21 interacts with the locking mechanism on the rear hatch to achieve locking and unlocking of the door.

[0041] The design of the bent section 22 and inclined section 23 of the hinge rod 2 allows the rear hatch to move smoothly along a predetermined trajectory during opening and closing, reducing interference between the door and the vehicle body. Simultaneously, the retaining spring 7 within the hinge slot 4 ensures that the pin 6 will not dislodge during rotation, guaranteeing the hinge's stability and safety. During hinge rotation, the built-in lubrication system presses against the protrusion 16 inside the hinge seat 1, releasing the lubrication control seal and allowing lubricating oil to flow onto the surface of the pin 6, reducing friction and wear and ensuring the hinge maintains good performance over long-term use. Through this working principle, this new energy pure electric rear hatch hinge achieves convenient, safe, and low-noise opening and closing operations.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A new energy pure electric rear hatch hinge, characterized in that: The device includes a hinge base (1) and a hinge rod (2). The hinge rod (2) is composed of a straight section rod (21), a bent section rod (22), and an inclined section rod (23). The hinge rod (2) is formed by extrusion through a die-casting mold. The surface of the straight section rod (21) is provided with a first locking adjustment port (3). One end of the bent section rod (22) is provided with a hinge groove (4). The inner wall of the hinge groove (4) is rotatably connected to the cylindrical surface of one end of the hinge base (1). Both ends of the hinge groove (4) are provided with pin holes (5). The inner wall of the pin hole (5) is slidably connected to a pin (6) through a key strip. The middle arc surface of the pin (6) is rotatably connected to the cylindrical inner wall of one end of the hinge base (1). One end of the pin (6) is secured with a retaining ring (7). The retaining ring (7) is located on one side of the hinge base (1). The other end of the hinge seat (1) is provided with a second locking adjustment port (8), and the pin (6) is provided with a lubrication mechanism, which realizes the lubrication action of the pin (6).

2. The new energy pure electric rear hatch hinge according to claim 1, characterized in that: The lubrication mechanism includes a lubrication storage cavity (9) opened inside the pin (6), the lubrication storage cavity (9) is filled with lubricating oil, and an oil filling hole (10) is opened on the inner wall of one end of the lubrication storage cavity (9), one end of the oil filling hole (10) passes through and extends to one end of the pin (6).

3. The new energy pure electric rear hatch hinge according to claim 2, characterized in that: A concealed refueling pipe (11) is fixedly installed on the inner wall of one end of the refueling hole (10). A first limiting ring (12) is fixedly installed on one end of the concealed refueling pipe (11). A first spring (13) is fixedly installed on one side of the first limiting ring (12). A first sealing ball (14) is fixedly installed on one end of the first spring (13). The diameter of the first sealing ball (14) is larger than the inner diameter of one end of the concealed refueling pipe (11). The arc surface of the first sealing ball (14) is sealed to the inner wall of the refueling end of the concealed refueling pipe (11) by the sealing ring.

4. The new energy pure electric rear hatch hinge according to claim 3, characterized in that: The inner wall of the cylindrical end of the hinge seat (1) is provided with an annular groove (15), and a protrusion (16) is fixedly installed on the inner wall of the annular groove (15). The middle section of the arc surface of the pin (6) is provided with a lubrication outlet hole (17), and one end of the lubrication outlet hole (17) is fixedly connected to the lubrication storage cavity (9).

5. A new energy pure electric rear hatch hinge according to claim 4, characterized in that: A lubrication tube (18) is fixedly installed on the inner wall of the top of the lubrication outlet hole (17), and the oil outlet end of the lubrication tube (18) corresponds to the inner wall of the annular groove (15).

6. A new energy pure electric rear hatch hinge according to claim 4, characterized in that: A second limiting ring (19) is fixedly installed on the inner wall of the bottom end of the lubrication tube (18). A second spring (20) is fixedly installed on the top of the second limiting ring (19). A second sealing ball (201) is fixedly installed on the top of the second spring (20). The arc surface of the second sealing ball (201) is in contact with the surface of the protrusion (16).

7. A new energy pure electric rear hatch hinge according to claim 6, characterized in that: The diameter of the second sealing ball (201) is larger than the inner diameter of the top end of the lubrication tube (18), and the arc surface of the second sealing ball (201) is sealed by the sealing ring against the inner wall of the top end of the lubrication tube (18).

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