Integral bicycle crankshaft mounting structure

Abstract

The utility model relates to the technical field of bicycles, and discloses an integral bicycle crankshaft mounting structure which comprises an operation table, a placing plate is fixedly connected to the middle of the top end of the operation table, a crankshaft shell is arranged at the top of the placing plate, and a plurality of first positioning holes are formed in the top of the crankshaft shell. A positioning pin is slidably connected to the exterior of the first positioning hole, a mounting block is fixedly connected to the top of the first positioning hole, a damping plate is slidably connected to the exterior of the mounting block, a plurality of limiting holes are formed in the exterior of the damping plate, a gasket is slidably connected to the exterior of the mounting block, and a plurality of second positioning holes are formed in the gasket. According to the utility model, the crankshaft shell and the bicycle can be conveniently mounted, and the crankshaft shell does not need to be completely replaced during replacement, so that the maintenance cost is saved, the crankshaft shell is fixed during mounting, and the mounting accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to an integral bicycle crankshaft installation structure. Background Art

[0002] An integrated bicycle crankshaft mounting structure refers to a design that integrates the crankshaft and base of a bicycle. Compared with the traditional separate crankshaft mounting structure, this design has the advantages of integration, higher rigidity, and easier assembly, improves the overall rigidity and stability, simplifies the installation process, and is a potential bicycle transmission system design.

[0003] The utility model discloses a crankshaft-driven bicycle that can be stepped on by both feet at the same time, comprising a frame, wherein the bottom of the frame is rotatably connected to two pedals, and the rear end of the frame is fixedly provided with two rear frame sleeves, the outer ends of the two rear frame sleeves are respectively threadedly connected to a left thread seat and a right thread seat, a rear wheel hub is rotatably connected between the left thread seat and the right thread seat, a rear wheel is fixedly installed on the middle part of the rear wheel hub, one end surface of the rear wheel hub is fixedly connected to a diamond-shaped protrusion, a crankshaft is clamped and installed on the diamond-shaped protrusion, an end of the crankshaft away from the diamond-shaped protrusion is rotatably connected to a connecting rod, and the connecting rod is rotatably connected to one end on the inner side of the pedal. The crankshaft-driven bicycle that can be stepped on by both feet at the same time of the utility model is an improved crankshaft-driven bicycle that can be stepped on by both feet at the same time on the basis of the existing bicycle that can be stepped on by both feet at the same time, is driven by the crankshaft and the connecting rod, the rear wheel acts as a flywheel, has a simple structure, reduces unnecessary transmission parts, is more convenient to ride, and can be pushed backwards.

[0004] The beneficial effects of the above patent specification mentions "a crankshaft-driven bicycle that can be pedaled by both feet at the same time, which is improved on the basis of an existing bicycle that can be pedaled by both feet at the same time. The bicycle is driven by a crankshaft and a connecting rod, and the rear wheel acts as a flywheel. The structure is simple, unnecessary transmission parts are reduced, and the riding is lighter and can be pushed backwards." Although the above patent can utilize crankshaft and connecting rod transmission and has a simple structure, since the integral crankshaft and the base are an integrated design, once one of the components is damaged or needs to be replaced, the entire crankshaft assembly may need to be replaced, and the repair cost is high. Therefore, in view of the above shortcomings, an integral bicycle crankshaft mounting structure is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose an integral bicycle crankshaft mounting structure, aiming to improve the problem in the prior art that since the integral crankshaft and the base are an integrated design, once one of the components is damaged or needs to be replaced, the entire crankshaft assembly may need to be replaced, resulting in high repair costs.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A one-piece bicycle crankshaft mounting structure comprises an operating table, a placing plate is fixedly connected to the middle top of the operating table, a crankshaft housing is arranged on the top of the placing plate, a plurality of positioning holes 1 are opened on the top of the crankshaft housing, a positioning pin is slidably connected to the outside of the positioning hole 1, a mounting block is fixedly connected to the top of the positioning hole 1, a shock-absorbing plate is slidably connected to the outside of the shock-absorbing plate, a plurality of limiting holes are opened on the outside of the shock-absorbing plate, a gasket is slidably connected to the outside of the mounting block, a plurality of positioning holes 2 are opened inside the gasket, a mounting outer bin is fixedly connected to the top of the mounting block, a mounting inner bin is fixedly connected to the inside of the mounting outer bin, a locking assembly is arranged inside the mounting inner bin, and a clamping assembly is arranged inside the operating table.

[0008] Furthermore, the locking assembly includes a push plate, a spring, two limiting balls and two limiting grooves. The outside of the push plate is slidably connected to the inside of the installed inner warehouse, the spring is sleeved on the outside of the push plate, the outside of the limiting ball is rotationally connected to the inside of the installed inner warehouse, and the two limiting grooves are respectively opened on the left and right sides of the installed inner warehouse.

[0009] Furthermore, one end of the spring is fixedly connected to the bottom of the push plate, and the other end of the spring is fixedly connected to the top of the mounting block.

[0010] Furthermore, the outside of the positioning pin is slidably connected to the outer wall of the limiting hole, the outside of the positioning pin is slidably connected to the inner wall of the second positioning hole, the outside of the positioning pin is threadedly connected to a nut, and a support plate is fixedly connected to the right side of the operating table.

[0011] Furthermore, the clamping assembly includes a motor 1, a bidirectional threaded rod, two sliding plates and two clamping plates, the bottom of the motor 1 is installed on the top of the support plate, one end of the bidirectional threaded rod is fixedly connected to the driving end of the motor 1, the other end of the bidirectional threaded rod is rotatably connected to the inner left side of the operating table, the internal thread of the sliding plate is connected to the outside of the bidirectional threaded rod, and the bottom of the clamping plate is fixedly connected to the top of the sliding plate.

[0012] Furthermore, two limiting columns are fixedly connected inside the operating table, the inside of the sliding plate is slidably connected to the outside of the limiting columns, and the bottom of the sliding plate is slidably connected to the inner wall of the bottom end of the operating table.

[0013] Furthermore, square slide grooves are provided on both left and right sides of the top of the operating table, and the outer portion of the clamping plate is slidably connected to the inner wall of the square slide groove.

[0014] Furthermore, a second motor is installed on the top rear side of the operating table, and a driving end of the second motor is fixedly connected to a mechanical arm.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, through the cooperation of the operating table, the placement plate, the crankshaft housing, the first positioning hole, the positioning pin, the mounting block, the shock-absorbing plate, the limiting hole, the gasket, the second positioning hole, the mounting outer bin, the mounting inner bin, the push plate, the spring, the limiting ball, the limiting groove, the nut and other structures, the crankshaft housing can be conveniently installed on the bicycle, and it is not necessary to replace all of them when replacing, thus saving maintenance costs.

[0017] 2. In the utility model, by the mutual cooperation of the operating table, the motor, the bidirectional threaded rod, the sliding plate, the clamping plate, the limit column, the square slide groove and other structures, the crankshaft housing is fixed during installation, thereby increasing the accuracy of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of an integrated bicycle crankshaft mounting structure proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a mounting block of an integrated bicycle crankshaft mounting structure proposed by the utility model;

[0020] Figure 3 The utility model discloses an internal structure diagram of an operating table of an integrated bicycle crankshaft mounting structure.

[0021] Legend:

[0022] 1. Operating table; 2. Placement plate; 3. Crankshaft housing; 4. Positioning hole 1; 5. Positioning pin; 6. Mounting block; 7. Shock-absorbing plate; 8. Limiting hole; 9. Gasket; 10. Positioning hole 2; 11. Install outer bin; 12. Install inner bin; 13. Push plate; 14. Spring; 15. Limiting ball; 16. Limiting groove; 17. Nut; 18. Motor 1; 19. Bidirectional threaded rod; 20. Sliding plate; 21. Clamping plate; 22. Limiting column; 23. Square slide groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-Figure 2The utility model provides an embodiment: an integrated bicycle crankshaft installation structure, including an operating platform 1, firstly, the operating platform 1 is placed in a suitable position, a motor 2 is installed on the top rear side of the operating platform 1, the motor 2 is started, the driving end of the motor 2 is fixedly connected with a mechanical arm, and the mechanical arm operates under the drive of the motor 2, a placement plate 2 is fixedly connected to the middle of the top of the operating platform 1, a crankshaft housing 3 is arranged on the top of the placement plate 2, and then the crankshaft housing 3 is placed on the top of the placement plate 2, a plurality of positioning holes 4 are opened on the top of the crankshaft housing 3, the outside of the positioning hole 4 is slidably connected with a positioning pin 5, the top of the positioning hole 4 is fixedly connected with a mounting block 6, the outside of the mounting block 6 is slidably connected with a shock-absorbing plate 7, and the shock-absorbing plate 7 can reduce external damage to the operating platform 1 when it is in use.

[0025] A plurality of limiting holes 8 are provided on the outside of the shock absorbing plate 7, and a gasket 9 is slidably connected to the outside of the mounting block 6. The positioning pin 5 is taken out, and the shock absorbing plate 7 and the gasket 9 can be removed for replacement. A plurality of positioning holes 10 are provided inside the gasket 9. During installation, the shock absorbing plate 7 and the gasket 9 are installed to the outside of the mounting block 6 again, and then the positioning pin 5 is inserted into the positioning hole 10, the limiting hole 8 and the inside of the positioning hole 4 in sequence again. The top of the mounting block 6 is fixedly connected with an installation outer warehouse 11, and the outer shell assembly part of the bicycle is aligned with the installation outer warehouse 11. The inside of the installation outer warehouse 11 is fixedly connected with an installation inner warehouse 12, and the mounting part enters the inside of the installation inner warehouse 12. The inside of the installation inner warehouse 12 is provided with a locking assembly, which includes a push plate 13, a spring 14, two limiting balls 15 and two limiting grooves 16. At this time, the limiting ball 15 moves to the left and right sides and contacts the inner wall of the limiting groove 16, and the outside of the push plate 13 is slidably connected to the inside of the installation inner warehouse 12.

[0026] The spring 14 is sleeved on the outside of the push plate 13, and one end of the spring 14 is fixedly connected to the bottom of the push plate 13. The spring 14 can absorb external force due to its own elastic properties. At this time, the push plate 13 will also move inward and squeeze the spring 14. The other end of the spring 14 is fixedly connected to the top of the mounting block 6. The spring 14 is compressed by force, and the outer rotation of the limiting ball 15 is connected to the inside of the mounting inner bin 12, and the limiting ball 15 is locked with the mounting part. The two limiting grooves 16 are respectively opened on the left and right sides of the mounting inner bin 12, and the outer side of the locating pin 5 is slidably connected to the outer wall of the limiting hole 8, and the outer side of the locating pin 5 is slidably connected to the inner wall of the locating hole 10. The outer side of the locating pin 5 is threadedly connected with a nut 17. If any parts are damaged, the nut 17 is rotated and installed using the nut 17, which is convenient for installing the crankshaft housing 3 and the bicycle. It does not need to be completely replaced during replacement, saving maintenance costs.

[0027] Reference Figure 1 and Figure 3A support plate is fixedly connected to the right side of the operating table 1, and a clamping assembly is arranged inside the operating table 1, which includes a motor 18, a bidirectional threaded rod 19, two sliding plates 20 and two clamping plates 21. The bottom of the motor 18 is installed on the top of the support plate, and then the motor 18 is started. One end of the bidirectional threaded rod 19 is fixedly connected to the driving end of the motor 18. Under the drive of the motor 18, the bidirectional threaded rod 19 rotates, and the other end of the bidirectional threaded rod 19 is rotatably connected to the left side of the inside of the operating table 1. The internal thread of the sliding plate 20 is connected to the outside of the bidirectional threaded rod 19. At this time, the sliding plate 20 will rotate with the rotation of the bidirectional threaded rod 19, and the bottom of the clamping plate 21 is fixedly connected to the top of the sliding plate 20.

[0028] The operating table 1 is internally fixedly connected to two limit columns 22, and the inner sliding plate 20 is slidably connected to the outer side of the limit columns 22, but under the limitation of the limit columns 22, it will move linearly along the trajectory of the limit columns 22, and the bottom of the sliding plate 20 is slidably connected to the inner wall of the bottom end of the operating table 1. Square slide grooves 23 are provided on the left and right sides of the top of the operating table 1. The outer side of the clamping plate 21 is slidably connected to the inner wall of the square slide groove 23, and the square slide groove 23 can also limit the clamping plate 21. When the clamping plate 21 moves toward each other, it can clamp the crankshaft housing 3, thereby fixing the crankshaft housing 3 during installation and increasing the accuracy of installation.

[0029] Working principle: first, place the operating table 1 in a suitable position, then place the crankshaft housing 3 on the top of the placement plate 2, then start the motor 18, and the bidirectional threaded rod 19 rotates under the drive of the motor 18. At this time, the sliding plate 20 will rotate with the rotation of the bidirectional threaded rod 19, but will move linearly along the trajectory of the limiting column 22 under the limit of the limiting column 22. At the same time, the square slide groove 23 can also limit the clamping plate 21. When the clamping plate 21 moves toward each other, it can clamp the crankshaft housing 3. Then start the motor 2, and the mechanical arm operates under the drive of the motor 2 to assemble the outer shell of the bicycle. Align the outer installation bin 11, and the installation part enters the interior of the inner installation bin 12. At this time, the limiting ball 15 moves to the left and right sides and contacts the inner wall of the limiting groove 16. At this time, the push plate 13 will also move inward and squeeze the spring 14. The spring 14 is compressed, and the limiting ball 15 is locked with the installation part. If any parts are damaged, turn the nut 17 to take out the locating pin 5. At this time, the shock absorbing plate 7 and gasket 9 can be removed for replacement. During installation, the shock absorbing plate 7 and gasket 9 are installed on the outside of the mounting block 6 again, and then the locating pin 5 is inserted into the interior of the positioning hole 2 10, the limiting hole 8 and the positioning hole 1 4 in turn, and then installed using the nut 17.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated bicycle crankshaft mounting structure, comprising an operating table (1), characterized in that: A placement plate (2) is fixedly connected to the middle of the top of the operating table (1), a crankshaft housing (3) is arranged on the top of the placement plate (2), a plurality of positioning holes (4) are provided on the top of the crankshaft housing (3), a positioning pin (5) is slidably connected to the outside of the positioning hole (4), a mounting block (6) is fixedly connected to the top of the positioning hole (4), a shock absorbing plate (7) is slidably connected to the outside of the shock absorbing plate (7), a plurality of limiting holes (8) are arranged on the outside of the shock absorbing plate (7), a gasket (9) is slidably connected to the outside of the mounting block (6), a plurality of positioning holes (10) are arranged inside the gasket (9), a mounting outer bin (11) is fixedly connected to the top of the mounting block (6), a mounting inner bin (12) is fixedly connected to the inside of the mounting outer bin (11), a locking assembly is arranged inside the mounting inner bin (12), and a clamping assembly is arranged inside the operating table (1).

2. The integrated bicycle crankshaft mounting structure according to claim 1, characterized in that: The locking assembly includes a push plate (13), a spring (14), two limiting balls (15) and two limiting grooves (16); the outside of the push plate (13) is slidably connected to the inside of the installed inner bin (12); the spring (14) is sleeved on the outside of the push plate (13); the outside of the limiting ball (15) is rotationally connected to the inside of the installed inner bin (12); and the two limiting grooves (16) are respectively arranged on the left and right sides of the installed inner bin (12).

3. The integrated bicycle crankshaft mounting structure according to claim 2, characterized in that: One end of the spring (14) is fixedly connected to the bottom of the push plate (13), and the other end of the spring (14) is fixedly connected to the top of the mounting block (6).

4. The integrated bicycle crankshaft mounting structure according to claim 2, characterized in that: The outside of the positioning pin (5) is slidably connected to the outer wall of the limiting hole (8), the outside of the positioning pin (5) is slidably connected to the inner wall of the second positioning hole (10), the outside of the positioning pin (5) is threadedly connected to a nut (17), and the right side of the operating table (1) is fixedly connected to a support plate.

5. The integrated bicycle crankshaft mounting structure according to claim 4, characterized in that: The clamping assembly comprises a motor (18), a bidirectional threaded rod (19), two sliding plates (20) and two clamping plates (21); the bottom of the motor (18) is mounted on the top of the support plate; one end of the bidirectional threaded rod (19) is fixedly connected to the driving end of the motor (18); the other end of the bidirectional threaded rod (19) is rotatably connected to the inner left side of the operating table (1); the inner thread of the sliding plate (20) is connected to the outer side of the bidirectional threaded rod (19); and the bottom of the clamping plate (21) is fixedly connected to the top of the sliding plate (20).

6. The integrated bicycle crankshaft mounting structure according to claim 5, characterized in that: The interior of the operating table (1) is fixedly connected to two limiting columns (22), the interior of the sliding plate (20) is slidably connected to the exterior of the limiting columns (22), and the bottom of the sliding plate (20) is slidably connected to the inner wall of the bottom end of the operating table (1).

7. The integrated bicycle crankshaft mounting structure according to claim 5, characterized in that: The left and right sides of the top of the operating table (1) are both provided with square sliding grooves (23), and the outside of the clamping plate (21) is slidably connected to the inner wall of the square sliding groove (23).

8. The integrated bicycle crankshaft mounting structure according to claim 1, characterized in that: A second motor is installed on the top rear side of the operating table (1), and a driving end of the second motor is fixedly connected to a mechanical arm.

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