Bicycle frame front fork assembly impact test device

Abstract

The utility model belongs to the technical field of impact resistance test devices, and particularly relates to a bicycle frame front fork assembly impact test device which comprises a rack, sliding rods are fixed at the two ends in the rack, an impact hammer is connected between the two sliding rods in a sliding mode, the two sliding rods penetrate through the interior of the impact hammer, a steel wire rope is fixed at the upper end of the impact hammer, and a steel wire rope is fixed at the lower end of the steel wire rope. A first pulley and a second pulley are fixed to the positions, located at the upper end of the impact hammer, of the interior of the rack, the first pulley is located at one end of the second pulley, and a third pulley is fixed to one end of the interior of the rack. The winding mechanism comprises a shell, a first rotating rod, a first gear, a second rotating rod, a second gear and a hand wheel, and the shell is arranged at one end of the rack. According to the utility model, the steel wire ropes are effectively managed and are prevented from being disorderly scattered in a test site, so that the test environment is cleaner, and the arrangement and the use of other equipment are also facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of impact resistance test devices, and in particular relates to an impact test device for a bicycle frame front fork assembly. Background Art

[0002] The bicycle frame front fork assembly impact test device is a device used to simulate the impact conditions that a bicycle may encounter during driving to test the strength and stability of the bicycle frame front fork assembly. This device usually includes a weight for simulating the impact and a bracket for fixing the bicycle frame front fork assembly. The weight is connected to the bracket by a rope. When the weight falls, the rope will be tightened, thereby generating an impact force on the bicycle frame front fork assembly.

[0003] However, there is no winding mechanism to reel in the rope, and the tester needs to reel in the rope manually, which increases the complexity and labor intensity of the operation. At the same time, during the test, if the rope is not reeled in time, it may cause problems such as rope entanglement and knotting, affecting the normal progress of the test and may even cause harm to the tester. Based on the above problems, this application document proposes a bicycle frame fork assembly impact test device to improve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a bicycle frame front fork assembly impact test device, which can prevent operators from directly contacting high-speed moving or high-tension wire ropes, thereby reducing the risk of work injuries, and can effectively manage the wire ropes to prevent them from being scattered in a disorderly manner in the test site, making the test environment tidier and facilitating the arrangement and use of other equipment.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A bicycle frame front fork assembly impact test device, comprising a frame, two ends of the frame are fixed with sliding rods, an impact hammer is slidably connected between the two sliding rods, and the two sliding rods penetrate the inside of the impact hammer, a steel wire rope is fixed to the upper end of the impact hammer, a first pulley and a second pulley are fixed inside the frame and at the upper end of the impact hammer, and the first pulley is located at one end of the second pulley, and a third pulley is fixed to one end of the frame, characterized in that: one end of the frame is equipped with a winding mechanism, and the winding mechanism includes a shell, a first rotating rod, a first Gear, second rotating rod, second gear and handwheel, the outer shell is arranged at one end of the frame, the first rotating rod is rotatably connected to the upper end of the outer shell, and the end of the wire rope away from the impact hammer passes through the first pulley, the second pulley and the third pulley in sequence and is fixedly connected to the first rotating rod, the first gear is fixed to one side of the first rotating rod, the second rotating rod is rotatably connected to the inside of the outer shell and is located at one end of the first rotating rod, the second gear is fixed to one side of the second rotating rod, and the second gear is meshed with the first gear, and the handwheel is fixed to one side of the second rotating rod.

[0007] As one of the preferred embodiments of the present invention, a plurality of scale marks are evenly arranged on the outer side of one of the slide bars.

[0008] As one of the preferred embodiments of the utility model, the outer side of the hand wheel is sleeved with an anti-skid rubber sleeve, and the outer side of the anti-skid rubber sleeve is evenly provided with a plurality of anti-skid grooves.

[0009] As one of the better embodiments of the present invention, the upper end of the shell is slidably connected to a limit rod, the lower end of the limit rod is fixed with a limit block, and the limit block is matched with the second gear, a circular ring is fixed to the outer side of the limit rod, a positioning pin is fixed at one end of the limit rod and located at the upper end of the shell, a rotating valve is fixed to the upper end of the limit rod, a spring is fixed at the upper end of the circular ring and located at the outer side of the limit rod, and the spring is located inside the shell, an arc plate is fixed to the upper end of the shell, a T-shaped groove is opened on the inner wall of the arc plate, and the positioning pin is matched with the T-shaped groove.

[0010] As one of the preferred embodiments of the utility model, a protective plate is fixed to one end of the frame and located on the upper end of the third pulley, and a semicircular groove is formed at one end of the protective plate close to the impact hammer.

[0011] As one of the preferred embodiments of the present invention, a fixing column is fixed to one end of the frame away from the protective plate, and a test frame is fixed to the upper end of the fixing column.

[0012] The technical effects achieved by the utility model are:

[0013] The utility model drives the first gear and the second gear to rotate by rotating the hand wheel, thereby rotating the first rotating rod, so that the rope can be wound around the first rotating rod, and the rope can be rolled up to avoid being scattered in a disorderly manner on the test site.

[0014] When the utility model performs an impact test on the front fork assembly of the bicycle frame, the second gear is limited by the limit block to prevent the rope on the first rotating rod from being released, and it is convenient to check whether the impact hammer and the scale mark on the slide rod are level. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a top view of the overall structure of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the winding mechanism of the utility model;

[0018] Figure 4 It is a cross-sectional view of the winding mechanism of the utility model;

[0019] Figure 5 For this utility model Figure 4 A local enlarged schematic diagram of the middle A;

[0020] Figure 6 This is an exploded view of the winding mechanism of the utility model;

[0021] Figure 7 Schematic diagram of the structure of the curved plate.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 10. Frame; 11. Slide bar; 12. Impact hammer; 13. Wire rope; 14. First pulley; 15. Second pulley; 16. Third pulley; 17. Protective plate; 18. Fixed column; 19. Test frame; 20. Winding mechanism; 21. Housing; 22. First rotating rod; 23. First gear; 24. Second rotating rod; 25. Second gear; 26. Hand wheel; 27. Limit rod; 28. Limit block; 29. ​​Ring; 30. Positioning pin; 31. Rotating valve; 32. Spring; 33. Arc plate. DETAILED DESCRIPTION

[0024] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0025] like Figures 1 to 4 As shown, a bicycle frame front fork assembly impact test device includes a frame 10, both ends of the frame 10 are fixed with slide bars 11, an impact hammer 12 is slidably connected between the two slide bars 11, and the two slide bars 11 pass through the inside of the impact hammer 12, a steel wire rope 13 is fixed to the upper end of the impact hammer 12, a first pulley 14 and a second pulley 15 are fixed inside the frame 10 and located at the upper end of the impact hammer 12, and the first pulley 14 is located at one end of the second pulley 15, a third pulley 16 is fixed to one end of the frame 10, and a winding mechanism 20 is assembled at one end of the frame 10, and the winding mechanism 20 includes a shell 21, a first rotating rod 22, a first gear 23, The second rotating rod 24, the second gear 25 and the hand wheel 26, the outer shell 21 is arranged at one end of the frame 10, the first rotating rod 22 is rotatably connected to the upper end of the outer shell 21, and the end of the wire rope 13 away from the impact hammer 12 passes through the first pulley 14, the second pulley 15 and the third pulley 16 in sequence and is fixedly connected to the first rotating rod 22, the first gear 23 is fixed to one side of the first rotating rod 22, the second rotating rod 24 is rotatably connected to the inside of the outer shell 21 and is located at one end of the first rotating rod 22, the second gear 25 is fixed to one side of the second rotating rod 24, and the second gear 25 is meshed with the first gear 23, and the hand wheel 26 is fixed to one side of the second rotating rod 24.

[0026] In the above embodiment, when the hand wheel 26 is rotated, the second rotating rod 24 starts to rotate. Since the second gear 25 is fixed on the second rotating rod 24, the second gear 25 starts to rotate. Since the second gear 25 is meshingly connected with the first gear 23, the first gear 23 starts to rotate. At the same time, the first gear 23 is fixed on the first rotating rod 22, so the first rotating rod 22 starts to rotate. Since the wire rope 13 rotates on the first rotating rod 22, when the first rotating rod 22 rotates, the wire rope 13 starts to be wound on the first rotating rod 22. When the wire rope 13 is wound, it drives the impact hammer 12 to rise.

[0027] Furthermore, a plurality of scale marks are evenly arranged on the outer side of a slide bar 11 .

[0028] In the above embodiment, a plurality of scale marks are evenly arranged on the outer side of the slide bar 11, and the impact hammer 12 can be raised to a suitable height according to the scale marks, so as to measure the impact force of the bicycle frame front fork assembly at different heights.

[0029] Furthermore, the outer side of the hand wheel 26 is sleeved with an anti-skid rubber sleeve, and the outer side of the anti-skid rubber sleeve is evenly provided with a plurality of anti-skid grooves.

[0030] In the above embodiment, a plurality of anti-slip grooves are provided on the outer side of the anti-slip rubber sleeve, which can increase the friction between the hand wheel 26 and the hand, prevent the hand wheel 26 from sliding in the hand, and improve the stability and accuracy of the operation. At the same time, the anti-slip rubber sleeve is usually made of soft material, which can provide a more comfortable grip feeling and reduce fatigue when operating the hand wheel 26 for a long time.

[0031] like Figures 5 to 7 As shown, the upper end of the shell 21 is slidably connected to a limit rod 27, the lower end of the limit rod 27 is fixed with a limit block 28, and the limit block 28 is adapted to the second gear 25, a circular ring 29 is fixed to the outer side of the limit rod 27, a positioning pin 30 is fixed at one end of the limit rod 27 and located at the upper end of the shell 21, a rotary valve 31 is fixed to the upper end of the limit rod 27, a spring 32 is fixed at the upper end of the circular ring 29 and located at the outer side of the limit rod 27, and the spring 32 is located inside the shell 21, an arc plate 33 is fixed to the upper end of the shell 21, a T-shaped groove is provided on the inner wall of the arc plate 33, and the positioning pin 30 is adapted to the T-shaped groove.

[0032] In the above embodiment, when the limit rod 27 limits the second gear 25, at this time, the ring 29 pushes the limit rod 27 downward under the elastic force of the spring 32 to prevent the limit block 28 at the lower end of the limit rod 27 and the second gear 25 from loosening. When the limit needs to be released, the rotary valve 31 is lifted and the rotary valve 31 drives the limit rod 27 to move upward. At this time, the positioning pin 30 fixed on the outside of the limit rod 27 moves along the T-groove provided on the inner wall of the arc plate 33. When the positioning pin 30 moves to the top of the T-groove, the rotary valve 31 is rotated and the positioning pin 30 also starts to rotate. At this time, the limit is released and the impact hammer 12 starts to move downward.

[0033] like Figure 1 and Figure 2 As shown, a protective plate 17 is fixed to one end of the frame 10 and located above the third pulley 16 , and a semicircular groove is formed at one end of the protective plate 17 close to the impact hammer 12 .

[0034] In the above embodiment, the protective plate 17 can prevent the operator from accidentally touching the running equipment to avoid safety accidents. At the same time, the protective plate 17 can effectively protect the frame 10 and the third pulley 16 from external physical impacts and prevent equipment damage caused by external force impact.

[0035] Furthermore, a fixing column 18 is fixed to one end of the frame 10 away from the protective plate 17 , and a test frame 19 is fixed to the upper end of the fixing column 18 .

[0036] In the above embodiment, the test frame 19 is fixed to the upper end of the fixing column 18 , which can effectively support the test frame 19 .

[0037] The working principle of the utility model is:

[0038] When it is necessary to perform an impact test on the front fork assembly of the bicycle frame, the front fork can be fixed to one end of the test frame 19 for testing. At this time, the hand wheel 26 is turned, the steel wire rope 13 is wound on the winding mechanism 20, and the impact hammer 12 rises. At this time, the second gear 25 is limited by the limit rod 27, and the impact hammer 12 no longer descends. A plurality of scale marks are evenly arranged on the outer side of the slide bar 11 to observe whether the impact hammer 12 is at a suitable height. When the impact test on the front fork assembly of the bicycle frame is started, the limit rod 27 is lifted to release the limit of the limit block 28 and the second gear 25. At this time, the impact hammer 12 hits the bicycle frame front fork assembly downward under the action of gravity. After the impact is completed, the steel wire rope 13 can be wound up by the hand wheel 26.

[0039] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A bicycle frame front fork assembly impact test device, comprising a frame (10), wherein sliding rods (11) are fixed at both ends of the frame (10), an impact hammer (12) is slidably connected between the two sliding rods (11), and the two sliding rods (11) penetrate the interior of the impact hammer (12), a steel wire rope (13) is fixed to the upper end of the impact hammer (12), a first pulley (14) and a second pulley (15) are fixed inside the frame (10) and located at the upper end of the impact hammer (12), and the first pulley (14) is located at one end of the second pulley (15), and a third pulley (16) is fixed to one end of the frame (10), characterized in that: A winding mechanism (20) is mounted at one end of the frame (10), and the winding mechanism (20) comprises a housing (21), a first rotating rod (22), a first gear (23), a second rotating rod (24), a second gear (25) and a hand wheel (26). The housing (21) is arranged at one end of the frame (10), the first rotating rod (22) is rotatably connected to the upper end of the housing (21), and the end of the steel wire rope (13) away from the impact hammer (12) passes through the first pulley (14), the second pulley (23), and the second pulley (25) in sequence. The interior of the first rotating rod (22) and the third pulley (15) are fixedly connected to the first rotating rod (22), the first gear (23) is fixed to one side of the first rotating rod (22), the second rotating rod (24) is rotatably connected to the interior of the housing (21) and is located at one end of the first rotating rod (22), the second gear (25) is fixed to one side of the second rotating rod (24), and the second gear (25) and the first gear (23) are meshed and connected, and the hand wheel (26) is fixed to one side of the second rotating rod (24).

2. A bicycle frame front fork assembly impact test device according to claim 1, characterized in that: A plurality of scale marks are evenly arranged on the outer side of one of the slide bars (11).

3. The bicycle frame front fork assembly impact test device according to claim 1, characterized in that: The outer side of the hand wheel (26) is sleeved with an anti-skid rubber sleeve, and the outer side of the anti-skid rubber sleeve is evenly provided with a plurality of anti-skid grooves.

4. The bicycle frame front fork assembly impact test device according to claim 1, characterized in that: The upper end of the housing (21) is slidably connected to a limit rod (27), a limit block (28) is fixed to the lower end of the limit rod (27), and the limit block (28) is matched with the second gear (25), a circular ring (29) is fixed to the outer side of the limit rod (27), a positioning pin (30) is fixed to one end of the limit rod (27) and located at the upper end of the housing (21), a rotary valve (31) is fixed to the upper end of the limit rod (27), a spring (32) is fixed to the upper end of the circular ring (29) and located at the outer side of the limit rod (27), and the spring (32) is located inside the housing (21), and an arc plate (33) is fixed to the upper end of the housing (21), a T-shaped groove is provided on the inner wall of the arc plate (33), and the positioning pin (30) is matched with the T-shaped groove.

5. The bicycle frame front fork assembly impact test device according to claim 1, characterized in that: A protective plate (17) is fixed to one end of the frame (10) and located above the third pulley (16), and a semicircular groove is formed at one end of the protective plate (17) close to the impact hammer (12).

6. The bicycle frame front fork assembly impact test device according to claim 1, characterized in that: A fixing column (18) is fixed to one end of the frame (10) away from the protective plate (17), and a test vehicle frame (19) is fixed to the upper end of the fixing column (18).

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