A swing door hinge
Patent Information
- Application Number
- CN202522035761.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-09-22
AI Technical Summary
[0003]本实用新型的目的在于解决车门打开后产生碰撞后能量无法释放,导致损伤严重的技术问题
[0014] This utility model uses guide grooves and limiting grooves on the rotating part, and a second shaft and connecting parts to cooperate. When the collision force exceeds the limiting range, the second shaft can disengage from the limiting groove, allowing the door to continue to open, thereby releasing energy and reducing damage. Its structure is relatively simple, easy to assemble, and low in cost.
Smart Images

Figure CN224755566U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hinge technology, and in particular to a swing door hinge. Background Technology
[0002] Swing door hinges connect the car door to the vehicle body, allowing the door to swing outwards when opened. Existing swing door hinges typically include a fixed component connected to the vehicle body and a rotating component connected to the door. The rotating and fixed components are connected by a pivot, allowing relative rotation. The hinge also includes a limiting mechanism to control the opening angle. However, when a vehicle is parked on the side of the road and the door swings open outwards, if an electric scooter, motorcycle, or other vehicle behind it fails to notice and collides with the door, a strong impact could easily cause serious damage to the door and injury to occupants. Currently, some vehicles use cameras combined with control systems to monitor moving objects to the side, thus reducing the risk of collision when the door opens. However, this method is costly and difficult to apply to inexpensive models. Utility Model Content
[0003] The purpose of this invention is to solve the technical problem that energy cannot be released after a collision when a car door is opened, resulting in severe damage.
[0004] To achieve the objectives of this utility model, the following technical solution is adopted:
[0005] A swing door hinge includes a fixed base, a rotating component, and a rotating assembly. The fixed base and the rotating component are connected by the rotating assembly. The fixed base includes a first mounting plate and a fixed plate with one end connected to the first mounting plate. The rotating component includes a second mounting plate and a mating plate with one end connected to the second mounting plate. The rotating assembly includes a rotating member, one end of which is connected to the fixed plate via a first shaft, and the other end of which is connected to the mating plate via a second shaft. The rotating member has a guide groove, and the mating plate has a limiting groove. The second shaft passes through the limiting groove, and one end of the limiting groove has an opening. When the door is impacted, the second shaft disengages from the opening. A connecting member is provided in the guide groove, and the connecting member passes through the mating plate.
[0006] In some embodiments, the guide groove includes a first groove and a second groove that are interconnected, with a bending area formed between the first groove and the second groove. When the door is closed, the connector is located at the end of the first groove, and when the door is impacted, the connector moves to the end of the second groove.
[0007] In some embodiments, the guide groove is V-shaped, and when the door is closed, the bending area faces the vehicle body.
[0008] In some embodiments, the rotating component has a first through hole and a second through hole at both ends, and the first shaft and the second shaft pass through the first and second through holes respectively. The first and second through holes are located on both sides of the guide groove.
[0009] In some embodiments, two fixing plates are arranged in parallel, the number of mating plates corresponds to the number of fixing plates, and the two fixing plates are connected by a stabilizing rod, which is arranged in parallel with the first shaft and the second shaft.
[0010] In some embodiments, the first shaft and the second shaft pass through two fixing plates and a connecting plate, respectively, and one end is snapped in place by an elastic clip.
[0011] In some embodiments, when the door is closed, the opening is oriented toward the door.
[0012] In some embodiments, when the door is impacted, the opening angle of the door is greater than 100°.
[0013] The swing door hinge provided by this utility model has the following advantages:
[0014] This utility model uses guide grooves and limiting grooves on the rotating part, and a second shaft and connecting parts to cooperate. When the collision force exceeds the limiting range, the second shaft can disengage from the limiting groove, allowing the door to continue to open, thereby releasing energy and reducing damage. Its structure is relatively simple, easy to assemble, and low in cost. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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.
[0016] Figure 1 This is a schematic diagram of a swing door hinge provided in an embodiment of the present utility model.
[0017] Figure 2 This is an exploded view of a swing door hinge provided in an embodiment of this utility model.
[0018] Figure 3 This is a schematic diagram of the door when it is closed, provided in an embodiment of this utility model.
[0019] Figure 4 This is a schematic diagram of the door being normally opened according to an embodiment of this utility model.
[0020] Figure 5 This is a schematic diagram of the door continuing to open after a collision, provided in an embodiment of this utility model.
[0021] In the attached diagram: 1. Fixed base; 2. Rotating component; 3. Rotating assembly; 4. Guide groove; 5. Connecting component; 6. Elastic clip; 7. Stabilizer bar; 10. Body; 11. First mounting plate; 12. Fixed plate; 20. Door body; 21. Connecting plate; 22. Second mounting plate; 31. Rotating component; 32. First shaft; 33. Second shaft; 211. Limiting groove; 212. Opening; 311. First through hole; 312. Second through hole; 41. First groove; 42. Second groove; 43. Bending area. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0023] In this embodiment, "several" and "more than" refer to two or more. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] like Figures 1 to 5As shown, this embodiment provides a swing door hinge, including a fixed base 1, a rotating component 2, and a rotating assembly 3. The fixed base 1 and the rotating component 2 are connected by the rotating assembly 3. The fixed base 1 is connected to the vehicle body 10, and the rotating component 2 is connected to the door body 20. The rotating assembly 3 enables the rotating component 2 to rotate relative to the fixed base 1. The fixed base 1 includes a first mounting plate 11 and a fixed plate 12 connected at one end to the first mounting plate 11. The fixed plate 12 is perpendicular to the first mounting plate 11 and is secured to the vehicle body with screws. The rotating component 2 includes a second mounting plate 22 and a connecting plate 21 connected at one end to the second mounting plate 22. The connecting plate 21 is perpendicular to the second mounting plate 22, and the second mounting plate 22 is secured to the door body 20 with screws. The rotating assembly 3 includes a rotating component 31. One end of the rotating component 31 is connected to the fixed plate 12 via a first shaft 32, allowing the rotating component 31 to rotate relative to the fixed plate 12 around the first shaft 32. The other end is connected to the mating plate 21 via a second shaft 33, allowing the mating plate 21 to rotate. The rotating component 31 has a guide groove 4, and the mating plate 21 has a limiting groove 211. The limiting groove 211 is a straight groove, and the second shaft 33 passes through the limiting groove 211. One end of the limiting groove 211 has an opening 212. A connecting component 5 is provided in the guide groove 4, passing through the mating plate 21. The connecting component 5 is cylindrical. When the door 20 is normally open, the mating plate 21 rotates around the connecting component 5. Since the second shaft 33 is located in the limiting groove 211, it is limited by the limiting groove 211. When the door 20 is impacted, the direction of the force generated by the impact is consistent with the opening direction of the door. When the force is large, the connecting piece 5 moves in the guide groove 4, and at the same time, the second shaft 33 moves along the limiting groove 211 and disengages from the opening 212, allowing the door 20 to continue rotating and opening, thereby releasing the energy generated by the impact and reducing the injury to the human body. Through the above technical solution, when the door is impacted from behind, if the impact force exceeds the limiting range of the hinge, the connecting plate 21 of the hinge can continue to rotate, thereby releasing the impact energy and reducing the damage to the person involved and the door.
[0026] Specifically, the guide groove 4 includes a first groove 41 and a second groove 42 that are interconnected. A bending area 43 is formed between the first groove 41 and the second groove 42. When the door is closed, the connector 5 is located at the end of the first groove 41. When the door is impacted, the connector 5 moves to the end of the second groove 42, allowing the connector 5 to move through the bending area 43 to the second groove 42. The guide groove 4 is V-shaped. When the door is closed, the bending area 43 faces the vehicle body 10. During a collision, the mating plate 21 simultaneously performs linear displacement and rotational movement, allowing the second shaft to separate from the limiting groove 211. When the door is closed, the opening 212 faces the door 20. When the door is impacted, the opening angle of the door 20 is greater than 100°. In this embodiment, the opening angle of the door 20 can reach 180°.
[0027] Furthermore, the rotating component 31 has a first through hole 311 and a second through hole 312 at both ends, and a first shaft 32 and a second shaft 33 pass through the first and second through holes respectively. The first and second through holes are located on both sides of the guide groove 4, so that the first shaft 32 can connect the fixed plate 12 and the rotating component 31, and the second shaft 33 can connect the mating plate 21 and the rotating component 31. The two fixed plates 12 are arranged in parallel, and the number of mating plates 21 corresponds to the number of fixed plates 12. The two fixed plates 12 are connected by a stabilizing rod 7, which is arranged in parallel with the first shaft 32 and the second shaft 33. The rotating assembly 3 is connected to the two fixed plates 12 and the mating plate 21 respectively, making the rotating component 2 more stable. The first shaft 32 passes through two fixing plates 12, and the second shaft 33 passes through two connecting plates 21. One end of the first and second shafts is the end head, and the other end is connected by an elastic clip 6. The elastic clip 6 is a C-shaped retaining ring, which is set in the groove of the shaft for limiting the position, so as to facilitate assembly and disassembly.
[0028] This utility model uses guide grooves and limiting grooves on the rotating part, and a second shaft and connecting parts to cooperate. When the collision force exceeds the limiting range, the second shaft can disengage from the limiting groove, allowing the door to continue to open, thereby releasing energy and reducing damage. Its structure is relatively simple, easy to assemble, and low in cost.
[0029] The technical principles of this utility model have been described above in conjunction with specific embodiments. However, it should be noted that these descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, other specific embodiments or equivalent substitutions of this utility model that can be conceived by those skilled in the art without creative effort will all fall within the scope of protection of this utility model.
Claims
1. A swing door hinge, characterized in that, The device includes a fixed base, a rotating component, and a rotating assembly. The fixed base and the rotating component are connected by the rotating assembly. The fixed base includes a first mounting plate and a fixed plate connected to the first mounting plate at one end. The rotating component includes a second mounting plate and a mating plate connected to the second mounting plate at one end. The rotating assembly includes a rotating component. One end of the rotating component is connected to the fixed plate via a first shaft, and the other end is connected to the mating plate via a second shaft. The rotating component is provided with a guide groove, and the mating plate is provided with a limiting groove. The second shaft passes through the limiting groove, and one end of the limiting groove has an opening. When the door is impacted, the second shaft disengages from the opening. A connecting component is provided in the guide groove, and the connecting component passes through the mating plate.
2. The swing door hinge according to claim 1, characterized in that, The guide channel includes a first channel and a second channel that are interconnected, with a bending area formed between the first channel and the second channel. When the door is closed, the connector is located at the end of the first channel, and when the door is hit, the connector moves to the end of the second channel.
3. The swing door hinge according to claim 2, characterized in that, The guide groove is V-shaped, and when the door is closed, the bending area faces the vehicle body.
4. The swing door hinge according to claim 1, characterized in that, The rotating component has a first through hole and a second through hole at both ends, and the first shaft and the second shaft pass through the first and second through holes respectively. The first and second through holes are located on both sides of the guide groove.
5. The swing door hinge according to claim 1, characterized in that, Two fixed plates are set in parallel, and the number of mating plates corresponds to the number of fixed plates. The two fixed plates are connected by a stabilizing rod, which is set in parallel with the first and second shafts.
6. The swing door hinge according to claim 5, characterized in that, The first shaft and the second shaft pass through two fixing plates and a connecting plate respectively, and one end is secured by an elastic clip.
7. The swing door hinge according to claim 1, characterized in that, When the door is closed, the opening faces the door.
8. The swing door hinge according to claim 1, characterized in that, When the door is hit, the door opens at an angle greater than 100°.