Passenger car safety door hinge
The hinge design with movable pin connection solves the problem of inconvenient assembly of bus safety door hinges, achieving a more convenient installation process and higher strength.
Patent Information
- Application Number
- CN202422931970.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The existing bus safety door hinges are difficult to disassemble during assembly, resulting in high assembly difficulty and inconvenience in use.
The design employs a pin-connected mechanism between Part 1 and Part 2, allowing them to be fixed to the door and door frame respectively, and then assembled by inserting the pin.
This allows for independent installation of the hinges, reducing assembly difficulty and improving the strength and stability of the hinges.
Smart Images

Figure CN223510752U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hinge technology, and in particular to a passenger vehicle safety door hinge. Background Technology
[0002] A hinge is a mechanical device used to connect two solid objects and allow relative rotation between them. Hinges can be made of movable components or foldable materials;
[0003] Hinges have a wide range of uses. In addition to regular doors such as cabinet doors, they are also used in bus safety doors. However, compared to the hinges used in ordinary cabinet doors, the hinges used in bus safety doors have higher requirements, which are related to whether the bus safety doors can open and close smoothly.
[0004] Ordinary hinges are difficult to disassemble during assembly. Therefore, the entire hinge must be installed on the door first, then the door is lifted and the hinge is installed on the door frame. Alternatively, the hinge can be installed on the door frame first, then the door is lifted and the hinge is installed on the door. This method is difficult to assemble and very inconvenient to use.
[0005] To address the aforementioned issues, this application proposes a bus safety door hinge. Utility Model Content
[0006] This utility model provides a safety door hinge for passenger vehicles to solve the above-mentioned technical problems.
[0007] To solve the above-mentioned technical problems, the present invention provides a bus safety door hinge, including accessory one, accessory two and a pin, wherein accessory one and accessory two are movably connected by the pin;
[0008] The accessory includes an L-shaped mounting plate, on which two pin sleeves are fixedly connected to the bottom of one side. A round hole and two elliptical holes are provided on the top side of the L-shaped mounting plate away from the pin sleeves.
[0009] The accessory 2 includes an L-shaped mounting plate 2, and a pin sleeve 2 is fixedly connected to one side of the bottom of the L-shaped mounting plate 2. The pin sleeve 2 is located between two pin sleeves 1. A round hole 2 and two elliptical holes 2 are opened on one side of the L-shaped mounting plate 2.
[0010] The pin passes through pin sleeve one and pin sleeve two, and the pin is movably connected to pin sleeve one and pin sleeve two respectively.
[0011] Preferably, the first round hole and the two first elliptical holes are arranged in a triangular pattern, and the first L-shaped mounting plate and the first pin sleeve are welded and fixed together.
[0012] Preferably, the second circular hole is located between two second elliptical holes, and the second L-shaped mounting plate and the second pin sleeve are welded and fixed together.
[0013] Preferably, a protrusion is welded and fixed on the side of the pin sleeve away from the L-shaped mounting plate.
[0014] Preferably, the outer end of the pin has a three-circular hole.
[0015] Compared with related technologies, the bus safety door hinge provided by this utility model has the following advantages:
[0016] Part 1 and Part 2, which are connected by a pin, can be removed and fixed separately to the door and door frame during assembly. Then, the door is closed on the door frame. At this time, the pin sleeve 2 in Part 2 is located between the two pin sleeves 1 in Part 1. Then, the pin can be inserted into the pin sleeves 1 and 2. The parts can be installed independently, making assembly more convenient. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the bus safety door hinge proposed in this utility model.
[0018] Figure 2 This is a schematic diagram of a component of the bus safety door hinge proposed in this utility model.
[0019] Figure 3 This is a schematic diagram of the second component of the bus safety door hinge proposed in this utility model;
[0020] Figure 4 This is a second main view of the accessory for the bus safety door hinge proposed in this utility model.
[0021] The numbers in the diagram are: 1. L-shaped mounting plate one, 11. Pin sleeve one, 12. Round hole one, 13. Elliptical hole one, 2. L-shaped mounting plate two, 21. Pin sleeve two, 22. Protrusion, 23. Round hole two, 24. Elliptical hole two, 3. Pin, 31. Round hole three. Detailed Implementation
[0022] Implementation examples, by Figure 1-4 As shown, this utility model includes accessory one, accessory two, and a pin, wherein accessory one and accessory two are movably connected by the pin;
[0023] The accessory includes an L-shaped mounting plate 1. Two pin sleeves 11 are fixedly connected to the bottom of one side of the L-shaped mounting plate 1. A round hole 12 and two elliptical holes 13 are provided on the top side of the L-shaped mounting plate 1 away from the pin sleeves 11.
[0024] The accessory 2 includes an L-shaped mounting plate 2. A pin sleeve 21 is fixedly connected to one side of the bottom of the L-shaped mounting plate 2. The pin sleeve 21 is located between two pin sleeves 11. A round hole 23 and two elliptical holes 24 are provided on one side of the L-shaped mounting plate 2.
[0025] The pin 3 passes through the first pin sleeve 11 and the second pin sleeve 21, and the pin 3 is movably connected to the first pin sleeve 11 and the second pin sleeve 21 respectively.
[0026] Part 1 and Part 2 are connected by pin 3. During assembly, Part 1 and Part 2 can be assembled and fixed separately on the door and door frame first, and then Part 1 and Part 2 can be put together and inserted into pin 3 for assembly. Compared with the traditional one-piece hinge, the assembly is more convenient. In addition, Part 1 and Part 2 are thickened as a whole, with higher strength, which can meet the external force when the bus safety door is opened and closed.
[0027] The round hole 12 and the two oval holes 13 are arranged in a triangular pattern. The L-shaped mounting plate 1 and the pin sleeve 11 are welded and fixed together. The round hole 12 and the oval hole 13 can be used to install bolts. During installation, the bolts can be passed through the oval holes 13 to pre-position the accessory. After the final position of the accessory is determined, the bolts are then passed through the round hole 12 to fix it.
[0028] The second round hole 23 is located between the two second elliptical holes 24. The second L-shaped mounting plate 2 and the second pin sleeve 21 are welded and fixed together. The function and installation sequence of the second round hole 23 and the second elliptical hole 24 are the same as those of the first round hole 12 and the first elliptical hole 13.
[0029] A protrusion 22 is welded and fixed on the side of the pin sleeve 21 away from the L-shaped mounting plate 2. The protrusion 22 can prevent the angle from being too large when the accessory 1 and accessory 2 rotate through the pin, and plays a limiting role.
[0030] The outer end of the pin 3 has a circular hole 31. After the pin 3 is installed, a stop bar can pass through the circular hole 31 to prevent the pin 3 from separating from the pin sleeve 11 and the pin sleeve 21. The stop bar can be a bent metal strip or other accessories, as long as the stop bar does not come off from the circular hole 31.
[0031] Working principle:
[0032] When installing the hinges, multiple bolts are used to fix L-shaped mounting plates 1 and 2 to the door frame and door respectively through round hole 12, elliptical hole 13, round hole 23, and elliptical hole 24. Accessory 1 and accessory 2 are connected to each other by pin 3. A stop bar can be inserted at round hole 31 to prevent pin 3 from being pulled out of pin sleeve 11 and pin sleeve 21 at will. After the hinges are installed, the door can be opened and closed at will. The protrusion 22 on pin sleeve 21 prevents L-shaped mounting plates 1 and 2 from rotating excessively when they rotate through pin 3. The protrusion 22 will press against the inner wall of L-shaped mounting plate 1 to limit the rotation of L-shaped mounting plate 2, thus providing a certain degree of limit protection.
Claims
1. A passenger vehicle safety door hinge, characterized in that: It includes accessory one, accessory two, and a pin, wherein accessory one and accessory two are movably connected by the pin; The accessory includes an L-shaped mounting plate (1), with two pin sleeves (11) fixedly connected to the bottom of one side of the L-shaped mounting plate (1), and a round hole (12) and two elliptical holes (13) opened on the top side of the L-shaped mounting plate (1) away from the pin sleeves (11). The accessory 2 includes an L-shaped mounting plate 2 (2), and a pin sleeve 2 (21) is fixedly connected to one side of the bottom of the L-shaped mounting plate 2 (2). The pin sleeve 2 (21) is located between two pin sleeves 1 (11). A round hole 2 (23) and two elliptical holes 2 (24) are opened on one side of the L-shaped mounting plate 2 (2). The pin (3) passes through the first pin sleeve (11) and the second pin sleeve (21), and the pin (3) is movably connected to the first pin sleeve (11) and the second pin sleeve (21) respectively.
2. The bus safety door hinge according to claim 1, characterized in that, The circular hole (12) and the two elliptical holes (13) are arranged in a triangular pattern, and the L-shaped mounting plate (1) and the pin sleeve (11) are welded and fixed together.
3. The bus safety door hinge according to claim 1, characterized in that, The second round hole (23) is located between the two second elliptical holes (24), and the second L-shaped mounting plate (2) and the second pin sleeve (21) are welded and fixed together.
4. The bus safety door hinge according to claim 1, characterized in that, A protrusion (22) is welded and fixed on the side of the pin sleeve 2 (2) away from the L-shaped mounting plate 2 (2).
5. The bus safety door hinge according to claim 1, characterized in that, The outer end of the pin (3) is provided with a circular hole (31).