A kind of vehicle door limiter endurance test device
Patent Information
- Application Number
- CN202522551845.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-01
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-01
AI Technical Summary
In the existing technology, the durability test of the door limiter can only realize a single mode of linear reciprocating motion or swing test, which is difficult to switch on the same equipment, resulting in insufficient test data and reducing the test accuracy of the limiter.
A durability testing device for a car door limiter was designed. Through the cooperation of a base, a fixed seat, an adjusting frame, a positioning shaft, a limiting mechanism, an adjusting mechanism, a drive cylinder, a fixed frame, and a clamping mechanism, the hinge part of the limiter is sleeved on the positioning shaft. It can switch between linear reciprocating motion and swing testing on the same device, and use the reciprocating rotation of the drive cylinder to simulate different testing methods.
It improves the testing accuracy and disassembly efficiency of limit switches, has a simple structure, saves space, and reduces production costs.
Smart Images
Figure CN224933637U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of vehicle door limiter testing technology, specifically a vehicle door limiter durability testing device. Background Technology
[0002] The door limiter of a car limits the opening angle of the door and protects the door from accidental damage. It is especially effective when the door is opened with the wind at its back. It is an important component of the car, and its durability directly determines its service life and affects its safety. Therefore, the durability of the door limiter must be tested.
[0003] However, in existing technologies, the durability testing of door limiters can only achieve a single mode of linear reciprocating motion testing or swing testing, making it difficult to switch between the two testing modes on the same equipment. This results in incomplete test data and reduces the accuracy of the door limiter test. To address this issue, we provide a door limiter durability testing device. Utility Model Content
[0004] To address the problems mentioned in the background section, this utility model provides a door limiter durability testing device.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a durability testing device for a car door limiter, comprising a base and a limiter, wherein a fixed seat and an adjusting frame are fixedly connected to the base, a positioning shaft is fixedly connected to the fixed seat, the hinge portion of the limiter is sleeved on the positioning shaft, a limiting mechanism for preventing the limiter from swinging is provided on the fixed seat, an adjusting mechanism is provided on the adjusting frame, a driving cylinder is movably connected to the adjusting frame through the adjusting mechanism, the telescopic end of the driving cylinder is movably connected to the fixed frame, a clamping mechanism is provided on the front of the fixed frame, and the clamping mechanism is used to clamp the limiting box sleeved on the surface of the limiter.
[0006] Preferably, the limiting mechanism includes two sets of insertion holes, both sets of insertion holes are opened on the fixed base, and the two sets of insertion holes are respectively located on both sides of the positioning shaft. A U-shaped rod is provided on the fixed base, and the U-shaped rod is inserted into one of the sets of insertion holes, with both ends of the U-shaped rod located on both sides of the limiter.
[0007] Preferably, the top end of the positioning shaft is threaded with a limit cap, and the bottom end of the limit cap is close to the hinge part of the limiter.
[0008] Preferably, the adjusting mechanism includes a first screw, which is rotatably connected to the inner wall of the adjusting frame. One end of the first screw passes through the adjusting frame and is fixedly connected to a handle. A movable plate is threaded onto the surface of the first screw and slides on the inner wall of the adjusting frame. The fixed end of the driving cylinder is hinged to the movable plate.
[0009] Preferably, a sliding groove is provided on the back of the fixed frame, a connecting shaft is provided through the top of the sliding groove, the telescopic end of the drive cylinder is sleeved on the surface of the connecting shaft, a spring is fixedly connected to the bottom end of the connecting shaft, and the bottom end of the spring is fixedly connected to the inner bottom wall of the sliding groove, and a lever extending to the outside of the sliding groove is fixedly connected to the bottom end of the connecting shaft.
[0010] Preferably, the clamping mechanism includes an adjustment groove, which is formed on the front of the fixed frame. Two fixed plates are fixedly connected to the right side of the front of the fixed frame. A second screw is rotatably connected to the inner wall of the adjustment groove and fixedly connected to the two adjustment grooves. One end of the second screw passes through the fixed frame and is fixedly connected to a handle. A movable plate is threaded onto the surface of the second screw and slides on the two guide rods. Two positioning rods are fixedly connected to the side of the movable plate near the fixed plate, and the positioning rods are adapted to the screw holes of the limit box on the limiter.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] This utility model, through the coordinated arrangement of a base, fixed seat, adjusting frame, positioning shaft, limiting mechanism, adjusting mechanism, drive cylinder, fixed frame, and clamping mechanism, allows the hinged part of the limiter to be directly sleeved on the positioning shaft. Then, the fixed frame is swung to the limit box, positioning it between the movable plate and the fixed plate. Next, rotating the handle at one end of the second screw moves the movable plate, causing the movable plate and fixed plate to press and fix the limit box, and the positioning rod is inserted into the corresponding screw hole. Then, the U-shaped rod is inserted into a set of holes on the right side to prevent the limiter from swinging left and right, ensuring the drive cylinder and fixed frame are parallel. The reciprocating rotation of the drive cylinder causes the fixed frame to pull the limit box linearly back and forth on the limiter, thus testing its durability. When the test method for the limiter needs to be changed, the U-shaped rod is removed from the set of holes on the right side, and then the handle of the first screw is rotated. The control plate moves backward, causing the drive cylinder and limiter to no longer be parallel. The reciprocating motion of the drive cylinder then causes the limiter to swing around the positioning shaft, and the limit box slides on the limiter, thus performing a swing-type test on the limiter's durability. Two different test results can be recorded and compared, improving the accuracy of the limiter test. When it is necessary to separate the fixed frame from the limit box, simply reverse the handle at one end of the second screw, controlling the movable plate away from the fixed plate, allowing the positioning rod to be pulled out of the screw hole on the limit box. This allows the fixed frame to swing backward towards the limiter, and the limit cap to be removed from the positioning shaft. Finally, the limiter can be removed from the base, improving the efficiency of limiter assembly and disassembly. Furthermore, the device has a simple overall structure, facilitating limiter assembly and disassembly, is more stable, saves space, and effectively reduces production costs. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the structure of this utility model after the limiting arm is removed;
[0015] Figure 3 This is a front view structural diagram of the fixing frame of this utility model;
[0016] Figure 4 This is a rear view structural diagram of the fixed frame of this utility model.
[0017] In the diagram: 1. Base; 2. Fixed seat; 3. Insertion hole; 4. Limit cap; 5. U-shaped rod; 6. Limiter; 7. Adjusting frame; 8. First screw; 9. Moving plate; 10. Drive cylinder; 11. Fixed frame; 12. Movable plate; 13. Fixed plate; 14. Positioning shaft; 15. Connecting shaft; 16. Sliding groove; 17. Second screw; 18. Adjusting groove; 19. Guide rod; 20. Positioning rod; 21. Spring. Detailed Implementation
[0018] 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.
[0019] Example 1, such as Figure 1-4As shown, this embodiment proposes a vehicle door limiter durability testing device, including a base 1 and a limiter 6. A fixed seat 2 and an adjusting frame 7 are fixedly connected to the base 1. A positioning shaft 14 is fixedly connected to the fixed seat 2. The hinge part of the limiter 6 is sleeved on the positioning shaft 14, allowing the limiter 6 to swing around the positioning shaft 14, thereby simulating the closing of a vehicle door. A limiting mechanism is provided on the fixed seat 2 to prevent the limiter 6 from swinging. Through the limiting mechanism, the limiting box on the limiter 6 can slide linearly, thereby testing the durability of the limiter 6 for different movement trajectories. An adjusting mechanism is provided on the adjusting frame 7. The adjusting frame 7 is movably connected to a drive cylinder 10 through the adjusting mechanism, allowing the drive cylinder 10 to be adjusted by the adjusting mechanism. The device moves on the frame 7 to achieve the conversion of the test trajectory of the limiter 6. The extension end of the drive cylinder 10 is movably connected to the fixed frame 11. The front of the fixed frame 11 is provided with a clamping mechanism, which is used to clamp the limit box sleeved on the surface of the limiter 6. With the above structure, the limit box can be tested by linear reciprocating movement on the limiter 6, and the closing test can also be simulated by a car door, thereby improving the test effect of the limiter 6. In addition, the overall structure is simplified, making it easy to quickly install and remove the limiter 6 from the base 1. The mechanics, parts and equipment in this device are all conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.
[0020] Example 2: The solution in Example 1 will be further described below with reference to its specific working method. See the description below for details:
[0021] like Figure 1 and Figure 2 As shown, the limiting mechanism includes two sets of insertion holes 3, both of which are located on the fixed base 2 and on both sides of the positioning shaft 14. A U-shaped rod 5 is provided on the fixed base 2, and the U-shaped rod 5 is inserted into one of the sets of insertion holes 3. The two ends of the U-shaped rod 5 are located on both sides of the limiter 6. With the above structure, the hinge part of the limiter 6 can be prevented from swinging freely on the positioning shaft 14, which facilitates the subsequent linear reciprocating motion of the limiter box on the limiter 6 and improves the detection efficiency of the limiter 6. When it is necessary to control the limiter 6 to perform a swing test, the U-shaped rod 5 can be removed from both sides of the limiter 6 and inserted into the other set of insertion holes 3, thereby releasing the limiting obstruction of the hinge part of the limiter 6 and allowing the limiter 6 to swing normally through the positioning shaft 14. The setting of the two sets of insertion holes 3 not only serves to limit the limiter 6 but also allows the U-shaped rod 5 to be placed after use, preventing it from being lost.
[0022] like Figure 1 and Figure 2As shown, the top of the positioning shaft 14 is threaded with a limit cap 4, and the bottom of the limit cap 4 is close to the hinge part of the limiter 6. The hinge part of the limiter 6 is provided with a hinge hole, so the limiter 6 can be sleeved on the positioning shaft 14 through the hinge hole. With the setting of the limit cap 4, the limiter 6 can be prevented from falling off during the test, thereby positioning the hinge part of the limiter 6. In addition, the bottom of the limit cap 4 does not contact the limiter 6, but only approaches the limiter 6, so it will not hinder the subsequent rotation of the limiter 6 on the positioning shaft 14. When the limiter 6 is subsequently removed from the base 1, the limit cap 4 can be directly rotated off the positioning shaft 14 for removal, making the operation more convenient.
[0023] like Figure 1 and Figure 2 As shown, the adjustment mechanism includes a first screw 8, which is rotatably connected to the inner wall of the adjustment frame 7. One end of the first screw 8 passes through the adjustment frame 7 and is fixedly connected to a handle. A movable plate 9 is threaded onto the surface of the first screw 8, and the movable plate 9 slides on the inner wall of the adjustment frame 7. The fixed end of the drive cylinder 10 is hinged to the movable plate 9. With the above structure, it is convenient to adjust the angle between the drive cylinder 10 and the fixed frame 11. When it is necessary to control the fixed frame 11 to move linearly back and forth on the limiter 6, the drive cylinder 10 and the limiter 6 are positioned at... In a parallel configuration, when it is necessary to control the fixed frame 11 to drive the limiting box on the limiter 6 to simulate the rotation of a car door, the handle at one end of the first screw 8 is rotated to move the moving plate 9, thereby adjusting the angle between the drive cylinder 10 and the fixed frame 11. The U-shaped rod 5 is then removed to release the limitation on the hinge of the limiter 6. Subsequently, the fixed frame 11 is driven to reciprocate by the operation of the drive cylinder 10, which can drive the limiting box on the limiter 6 to simulate the opening and closing state of a car door, thereby achieving the durability test of the limiter 6. This structure is simple and easy to maintain.
[0024] like Figure 2 and Figure 4As shown, a sliding groove 16 is provided on the back of the fixed frame 11. A connecting shaft 15 is provided through the top of the sliding groove 16. The telescopic end of the drive cylinder 10 is sleeved on the surface of the connecting shaft 15. A spring 21 is fixedly connected to the bottom end of the connecting shaft 15, and the bottom end of the spring 21 is fixedly connected to the inner bottom wall of the sliding groove 16. A lever extending to the outside of the sliding groove 16 is fixedly connected to the bottom end of the connecting shaft 15. With the above structure, the telescopic end of the drive cylinder 10 can be easily disconnected from the connecting shaft 15, which is beneficial for subsequent maintenance or replacement of the fixed frame 11. In specific operation, the fixed frame 11 is released from the clamping of the upper limit box of the limiter 6. Then, simply push down the lever at the bottom of the connecting shaft 15 to move the connecting shaft 15 into the sliding groove 16, thereby releasing the sleeve between the drive cylinder 10 and the connecting shaft 15. Finally, simply slide the fixing frame 11 from one side to remove it. The operation is more convenient. When it is necessary to connect the telescopic end of the drive cylinder 10 to the fixing frame 11, first press down the lever, then place it in the corresponding position of the telescopic end of the drive cylinder 10, and then release the lever. Under the elastic force of the spring 21, the connecting shaft 15 is inserted into the mounting hole of the telescopic end of the drive cylinder 10, thus completing the quick connection between the drive cylinder 10 and the fixing frame 11.
[0025] like Figures 1 to 4 As shown, the clamping mechanism includes an adjustment groove 18, which is located on the front of the fixed frame 11. Two fixed plates 13 are fixedly connected to the right side of the front of the fixed frame 11. A second screw 17 is rotatably connected to the inner wall of the adjustment groove 18 and is fixedly connected to the two adjustment grooves 18. One end of the second screw 17 passes through the fixed frame 11 and is fixedly connected to a handle. A movable plate 12 is threaded onto the surface of the second screw 17, and the movable plate 12 is slidably mounted on two guide rods 19. Two positioning rods 20 are fixedly connected to the side of the movable plate 12 near the fixed plate 13, and the positioning rods 20 are adapted to the screw holes of the limit box on the limiter 6. With the above structure, the limit box on the limiter 6 can be quickly clamped and fixed for subsequent durability testing. In specific operation, the limit box is first placed in the fixed position. Between the fixed plate 13 and the movable plate 12, the handle at one end of the second screw 17 is rotated to move the movable plate 12, thereby pressing and fixing the movable plate 12 and the fixed plate 13 against the limiting box. During this process, the positioning rod 20 will be inserted into the corresponding screw hole to prevent the fixed frame 11 from falling off when it swings the limiting box, thus completing the connection between the fixed frame 11 and the limiting box. When it is necessary to separate the fixed frame 11 from the limiting box, simply reverse the handle at one end of the second screw 17 to control the movable plate 12 away from the fixed plate 13, so that the positioning rod 20 is pulled out from the screw hole on the limiting box. Then the fixed frame 11 can be swung toward the rear of the limiter 6, and the limiting cap 4 can be removed from the positioning shaft 14. Finally, the limiter 6 can be removed from the base 1, thereby improving the efficiency of disassembling and assembling the limiter 6.
[0026] The working principle and usage process of this utility model are as follows: First, the hinge part of the limiter 6 is sleeved on the positioning shaft 14. To prevent the limiter 6 from detaching from the positioning shaft 14, the limit cap 4 can be threadedly connected to the positioning shaft 14, thereby preventing the limiter 6 from detaching from the positioning shaft 14. Next, the fixing frame 11 is swung to the limit box, so that the limit box is between the movable plate 12 and the fixed plate 13. Then, the handle at one end of the second screw 17 is rotated to drive the movable plate 12 to move, thereby pressing and fixing the limit box against the movable plate 12 and the fixed plate 13. During the process, the positioning rod 20 is inserted into the corresponding screw hole to prevent the fixed frame 11 from falling off when it drives the limit box to swing, thus completing the connection between the fixed frame 11 and the limit box. Then, the U-shaped rod 5 is inserted into a set of insertion holes 3 on the right side to prevent the limiter 6 from swinging left and right. Then, the drive cylinder 10 is made parallel to the fixed frame 11. The reciprocating rotation of the drive cylinder 10 can then be used to make the fixed frame 11 pull the limit box to move linearly back and forth on the limiter 6. At this time, the limiter 6 will not move, thus testing its durability. When the limiter needs to be replaced... In test method 6, the U-shaped rod 5 is removed from the set of sockets 3 on the right side and inserted into the set of sockets 3 on the left side to prevent it from being lost. Then, the operator rotates the handle of the first screw 8 to control the moving plate 9 to move backward, which will cause the drive cylinder 10 and the fixed frame 11 to form a certain angle. At this time, the drive cylinder 10 and the limiter 6 are no longer parallel. Finally, the reciprocating rotation of the drive cylinder 10 causes the limiter 6 to swing around the positioning axis 14, and the limit box will also slide on the limiter 6, thus swinging. The durability of the movable limiter 6 can be tested by recording and comparing two different test results, thereby improving the test accuracy of the limiter 6. When it is necessary to separate the fixed frame 11 from the limit box, simply reverse the handle at one end of the second screw 17 to control the movable plate 12 away from the fixed plate 13, so that the positioning rod 20 can be pulled out from the screw hole on the limit box. Then the fixed frame 11 can be swung toward the rear of the limiter 6, and the limit cap 4 can be removed from the positioning shaft 14. Finally, the limiter 6 can be removed from the base 1, thereby improving the efficiency of disassembly and assembly of the limiter 6.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Content not described in detail in this specification belongs to the prior art known to those skilled in the art.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A durability testing device for a car door limiter, comprising a base (1) and a limiter (6), characterized in that: A fixed seat (2) and an adjusting frame (7) are fixedly connected to the base (1). A positioning shaft (14) is fixedly connected to the fixed seat (2). The hinge part of the limiter (6) is sleeved on the positioning shaft (14). A limiting mechanism for preventing the limiter (6) from swinging is provided on the fixed seat (2). An adjusting mechanism is provided on the adjusting frame (7). A driving cylinder (10) is movably connected to the adjusting frame (7) through the adjusting mechanism. A fixed frame (11) is movably connected to the telescopic end of the driving cylinder (10). A clamping mechanism is provided on the front of the fixed frame (11), and the clamping mechanism is used to clamp the limiting box sleeved on the surface of the limiter (6).
2. The door limiter durability testing device according to claim 1, characterized in that: The limiting mechanism includes two sets of insertion holes (3), both sets of insertion holes (3) are opened on the fixed base (2), and the two sets of insertion holes (3) are respectively located on both sides of the positioning shaft (14). A U-shaped rod (5) is provided on the fixed base (2), and the U-shaped rod (5) is inserted into one of the sets of insertion holes (3), and the two ends of the U-shaped rod (5) are located on both sides of the limiter (6).
3. The door limiter durability testing device according to claim 1, characterized in that: The top end of the positioning shaft (14) is threaded with a limit cap (4), and the bottom end of the limit cap (4) is close to the hinge of the limiter (6).
4. The door limiter durability testing device according to claim 1, characterized in that: The adjustment mechanism includes a first screw (8), which is rotatably connected to the inner wall of the adjustment frame (7). One end of the first screw (8) passes through the adjustment frame (7) and is fixedly connected to a handle. A movable plate (9) is threaded onto the surface of the first screw (8), and the movable plate (9) slides on the inner wall of the adjustment frame (7). The fixed end of the drive cylinder (10) is hinged to the movable plate (9).
5. The door limiter durability testing device according to claim 1, characterized in that: The back of the fixed frame (11) is provided with a sliding groove (16), and a connecting shaft (15) is provided through the top of the sliding groove (16). The telescopic end of the drive cylinder (10) is sleeved on the surface of the connecting shaft (15). A spring (21) is fixedly connected to the bottom end of the connecting shaft (15), and the bottom end of the spring (21) is fixedly connected to the inner bottom wall of the sliding groove (16). A lever extending to the outside of the sliding groove (16) is fixedly connected to the bottom end of the connecting shaft (15).
6. The door limiter durability testing device according to claim 1, characterized in that: The clamping mechanism includes an adjustment groove (18), which is located on the front of the fixed frame (11). Two fixed plates (13) are fixedly connected to the right side of the front of the fixed frame (11). The inner wall of the adjustment groove (18) is rotatably connected to a second screw (17) and the two adjustment grooves (18). One end of the second screw (17) passes through the fixed frame (11) and is fixedly connected to a handle. A movable plate (12) is threaded onto the surface of the second screw (17), and the movable plate (12) is slidably mounted on two guide rods (19). Two positioning rods (20) are fixedly connected to one side of the movable plate (12) near the fixed plate (13), and the positioning rods (20) are adapted to the screw holes of the limit box on the limiter (6).