A bicycle frame load capacity testing device for bicycle manufacturing

Abstract

The utility model discloses a bicycle manufacturing is with frame bearing capacity testing arrangement, including test board, the test board is fixed with fixed part and hydraulic cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of bicycle frame testing technology, and more specifically, it relates to a bicycle frame load-bearing capacity testing device for bicycle manufacturing. Background Technology

[0002] In bicycle manufacturing, traditional frame load-bearing tests use a cylinder-driven pressure plate to apply pressure to the frame from top to bottom to determine its maximum load-bearing capacity. However, the following problems still exist when testing bicycle frames:

[0003] In the existing testing process, frame fixing relies entirely on manual tightening of bolts. This operation is not only cumbersome and physically demanding, but also accumulates considerable time costs in batch testing. Since the tightening and loosening steps must be repeated for each frame tested, this directly lengthens the testing cycle for individual products, becoming a significant bottleneck restricting the improvement of overall testing efficiency. Furthermore, existing testing methods can only apply a single vertical downward pressure to the frame, which is seriously inconsistent with the multi-directional and complex loads experienced by bicycles in actual riding. Key stress scenarios such as lateral bending stress and frontal emergency braking impact cannot be effectively simulated, resulting in limited test data that fails to comprehensively and accurately reflect the frame's overall mechanical performance and potential structural weaknesses.

[0004] In view of this, we propose a test device for the load-bearing capacity of bicycle frames used in bicycle manufacturing. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a bicycle frame load-bearing capacity testing device to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a bicycle frame load-bearing capacity testing device, comprising a test platform, a fixing component and a hydraulic cylinder fixedly connected to the test platform, a frame mounted on the fixing component, a rod inserted into the seat hole of the frame, a connecting component hinged to the rod, a sensor hinged to the connecting component, a pull rod fixedly connected between the sensor and the hydraulic cylinder, a base plate fixedly connected to the test platform, two symmetrical guide rails fixedly connected to the base plate, a sliding plate slidably connected between the two guide rails, a fixed shaft fixedly connected to the sliding plate, a connecting rod hinged to the fixed shaft, and a connecting structure provided on the connecting rod.

[0009] The present invention is further configured such that a second hydraulic cylinder is fixedly connected to the base plate, the telescopic end of the second hydraulic cylinder is fixedly connected to the slide plate, and a first fixing plate is fixedly connected between the two connecting rods.

[0010] The present invention is further configured such that the connecting structure includes a plug plate, the plug plate is slidably connected to the two connecting rods, and the plug plate is fixedly connected to a pin, the pin passing through the steering hole of the frame.

[0011] The present invention is further configured such that the pin is provided with an annular limiting groove.

[0012] The present invention is further configured such that a second fixing plate is fixedly connected between the two connecting rods, the second fixing plate is rotatably connected to a threaded sleeve, the threaded sleeve is threadedly connected to a threaded rod, the threaded rod is fixedly connected to a fixing disc, and the fixing disc is slidably connected to circumferentially evenly distributed limiting members.

[0013] The present invention is further configured such that the limiting member is in a limiting fit with the limiting groove of the pin.

[0014] The present invention is further configured such that the limiting member is fixedly connected to a fixed post, the threaded rod is rotatably connected to a rotating disk, the rotating disk is provided with inclined through grooves distributed at equal intervals, and the fixed post is slidably connected in the inclined through grooves.

[0015] The present invention is further configured such that a torsion spring is fixedly connected between the rotating disk and the fixed disk, and a handle is fixedly connected to the rotating disk.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a test device for the load-bearing capacity of bicycle frames used in bicycle manufacturing, which has the following beneficial effects:

[0018] 1. This utility model, through an innovative limiting component and torsion spring linkage structure combined with threaded sleeve tightening, achieves rapid locking and releasing of the steering hole position on the frame, replacing the traditional bolt tightening method and shortening the clamping time. Simultaneously, the device can utilize vertical hydraulic cylinder one and horizontal hydraulic cylinder two to apply loads in different directions to the frame, either separately or simultaneously, more realistically simulating the complex stress states during actual riding and effectively expanding the testing range.

[0019] 2. When the pin is inserted into the steering hole, the conical surface of this invention automatically presses against the three circumferentially distributed limiting members, causing them to expand and automatically reset and engage with the limiting groove via a torsion spring, completing the initial positioning. Subsequently, rotating the threaded sleeve further tightens the pin, ensuring the rigidity and stability of the front end of the frame. This process requires no fine adjustments, simplifying the operation and reducing the technical requirements for operators.

[0020] 3. This invention integrates sensors in the vertical force application link, enabling real-time monitoring and recording of test data. Combined with a laterally sliding slide plate and connecting rod structure, it can dynamically apply lateral stress to the frame during testing, thereby achieving a comprehensive evaluation of the frame's mechanical performance under combined loads and providing more comprehensive and accurate data support for optimizing frame design. Attached Figure Description

[0021] Figure 1 This is a front structural schematic diagram of a bicycle frame load-bearing capacity testing device for bicycle manufacturing according to the present invention;

[0022] Figure 2 This is a schematic diagram of the connector and sensor in this utility model;

[0023] Figure 3 This is a structural schematic diagram of the connecting rod and the fixing plate in this utility model;

[0024] Figure 4 This is a schematic diagram of the threaded sleeve and threaded rod in this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the fixed disk and the rotating disk in this utility model.

[0026] In the diagram: 1. Test bench; 2. Fixing component; 3. Hydraulic cylinder one; 4. Insert rod; 5. Connecting component; 6. Sensor; 7. Pull rod; 8. Base plate; 9. Guide rail; 10. Slide plate; 11. Fixed shaft; 12. Connecting rod; 13. Hydraulic cylinder two; 14. Fixed plate one; 15. Insert plate; 16. Pin shaft; 17. Fixed plate two; 18. Threaded sleeve; 19. Threaded rod; 20. Fixed plate; 21. Limiting component; 22. Fixed column; 23. Rotating plate; 24. Inclined through groove; 25. Torsion spring; 26. Handle. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A bicycle frame load-bearing capacity testing device for bicycle manufacturing includes a test platform 1, a fixing member 2 and a hydraulic cylinder 3 fixedly connected to the test platform 1, a frame mounted on the fixing member 2, a rod 4 inserted into the seat hole of the frame, a connector 5 hinged to the rod 4, a sensor 6 hinged to the connector 5, a pull rod 7 fixedly connected between the sensor 6 and the hydraulic cylinder 3, a base plate 8 fixedly connected to the test platform 1, two symmetrical guide rails 9 fixedly connected to the base plate 8, a sliding plate 10 slidably connected between the two guide rails 9, a fixed shaft 11 fixedly connected to the sliding plate 10, a connecting rod 12 hinged to the fixed shaft 11, and a connecting structure provided on the connecting rod 12; a second hydraulic cylinder 13 fixedly connected to the base plate 8, the telescopic end of the second hydraulic cylinder 13 fixedly connected to the sliding plate 10, and a fixing plate 14 fixedly connected between the two connecting rods 12.

[0031] Please see Figures 3-5 The connecting structure includes a plug plate 15, which is slidably connected to two connecting rods 12. A pin 16 is fixedly connected to the plug plate 15, and the pin 16 passes through the steering hole of the frame. The pin 16 is provided with an annular limiting groove. A fixing plate 17 is fixedly connected between the two connecting rods 12. A threaded sleeve 18 is rotatably connected to the fixing plate 17. A threaded rod 19 is threadedly connected to the threaded sleeve 18. A fixing plate 20 is fixedly connected to the threaded rod 19. A circumferentially evenly spaced limiting member 21 is slidably connected to the fixing plate 20. The limiting member 21 is limited and engaged with the limiting groove of the pin 16. A fixing post 22 is fixedly connected to the limiting member 21. A rotating disk 23 is rotatably connected to the threaded rod 19. The rotating disk 23 is provided with an evenly spaced inclined through groove 24. The fixing post 22 is slidably connected within the inclined through groove 24. A torsion spring 25 is fixedly connected between the rotating disk 23 and the fixing disk 20. A handle 26 is fixedly connected to the rotating disk 23.

[0032] The working principle of this novel invention is as follows:

[0033] In use, the frame and fixing part 2 are installed, and the plug rod 4 is inserted into the seat hole and fixed. Then, the frame is placed on the fixing plate 14, and the plug plate 15 is inserted into the two connecting rods 12. The pin 16 passes through the steering hole of the frame, and the pin 16 presses against the three limiting parts 21. The limiting parts 21 move along the fixing plate 20 and move away from each other. The fixing post 22 slides along the inclined through groove 24, and then the rotating plate 23 rotates and the torsion spring 25 is tightened. When the limiting part 21 moves to the limiting groove of the pin 16, the three limiting parts 21 are reset under the elastic force of the torsion spring 25. The limiting parts 21 fix the pin 16. Then, the threaded sleeve 18 is rotated, and the threaded sleeve 18 drives the threaded rod 19 to move, so that the three limiting parts 21 tighten the pin 16, thereby quickly completing the fixing of the frame.

[0034] During the next test, sensor 6 is connected to the test terminal. Hydraulic cylinder 3 is activated, and its extension end pulls sensor 6 downward via pull rod 7. Sensor 6 applies a downward force to the frame via connector 5 and insert rod 4, controlling the reciprocating movement of the extension end of hydraulic cylinder 3 to test the load-bearing capacity of the frame. During the test, hydraulic cylinder 13 is activated, causing its extension end to slide slide plate 10 along guide rail 9. Slide plate 10 applies lateral compressive force to the frame via two connecting rods 12 and pin 16, thus enabling multi-directional testing of the frame.

[0035] During the test, sensor 6 transmits the test values ​​to the control terminal and records them. After the test, the handle 26 drives the rotating disk 23 to rotate. The rotating disk 23 drives the fixed column 22 to move through the inclined through slot 24, so that the three limiting parts 21 lose contact with the limiting slot of the pin 16. Then the pin 16 is pulled out of the frame, thereby quickly releasing the frame from fixation, thus improving the testing efficiency and convenience of the frame.

[0036] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A test device for testing the load-bearing capacity of a bicycle frame, comprising a test bench (1), characterized in that: The test bench (1) is fixedly connected to a fixing part (2) and a hydraulic cylinder (3). The fixing part (2) is equipped with a frame. A rod (4) is inserted into the seat hole of the frame. The rod (4) is hinged to a connector (5). The connector (5) is hinged to a sensor (6). A pull rod (7) is fixed between the sensor (6) and the hydraulic cylinder (3). The test bench (1) is fixedly connected to a base plate (8). The base plate (8) is fixedly connected to two symmetrical guide rails (9). A sliding plate (10) is slidably connected between the two guide rails (9). The sliding plate (10) is fixedly connected to a fixed shaft (11). The fixed shaft (11) is hinged to a connecting rod (12). The connecting rod (12) is provided with a connecting structure.

2. The bicycle frame load-bearing capacity testing device according to claim 1, characterized in that: The base plate (8) is fixedly connected to a hydraulic cylinder two (13), the telescopic end of the hydraulic cylinder two (13) is fixedly connected to the slide plate (10), and a fixing plate one (14) is fixedly connected between the two connecting rods (12).

3. The load-bearing capacity testing device for bicycle frames according to claim 2, characterized in that: The connection structure includes a plug plate (15), which is slidably connected to the two connecting rods (12). The plug plate (15) is fixedly connected to a pin (16), which passes through the steering hole of the frame.

4. The load-bearing capacity testing device for bicycle frames according to claim 3, characterized in that: The pin (16) is provided with an annular limiting groove.

5. The bicycle frame load-bearing capacity testing device according to claim 4, characterized in that: A fixing plate two (17) is fixed between the two connecting rods (12). The fixing plate two (17) is rotatably connected to a threaded sleeve (18). The threaded sleeve (18) is threadedly connected to a threaded rod (19). The threaded rod (19) is fixedly connected to a fixing disc (20). The fixing disc (20) is slidably connected to circumferentially evenly spaced limiting members (21).

6. The load-bearing capacity testing device for bicycle frames according to claim 5, characterized in that: The limiting member (21) is limited to the limiting groove of the pin (16).

7. The load-bearing capacity testing device for bicycle frames according to claim 6, characterized in that: The limiting member (21) is fixedly connected to a fixed post (22), and the threaded rod (19) is rotatably connected to a rotating disk (23). The rotating disk (23) is provided with inclined through grooves (24) distributed at equal intervals, and the fixed post (22) is slidably connected in the inclined through grooves (24).

8. The load-bearing capacity testing device for bicycle frames according to claim 7, characterized in that: A torsion spring (25) is fixed between the rotating disk (23) and the fixed disk (20), and a handle (26) is fixed to the rotating disk (23).

Images