Light damping bicycle front fork assembly

Abstract

The utility model relates to the technical field of bicycle front forks, and discloses a light damping bicycle front fork assembly which solves the problem that an existing bicycle front fork assembly is poor in damping effect and comprises two aluminum alloy fork barrels, an aluminum alloy fork bridge, aluminum alloy fork feet, two aluminum alloy damping stroke arms, an aluminum alloy fork shoulder and an aluminum alloy upper pipe. A limiting end cover is arranged at the top end of the aluminum alloy fork barrel, a damping adjusting assembly is arranged at the bottom end of the aluminum alloy fork barrel in a penetrating mode, a first damping spring is arranged at the bottom end in the aluminum alloy fork barrel, and the bottom end in the aluminum alloy fork barrel is filled with hydraulic oil. The aluminum alloy damping stroke arm is sleeved with a second damping spring located at the top end of the combined piston body, the combined piston body is composed of a main piston, a supporting rod and an auxiliary piston, and a plurality of oil holes are formed in the auxiliary piston. By means of the bicycle front fork assembly, the overall damping effect can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bicycle front fork technical field, concretely is a light shock absorbing bicycle front fork assembly. BACKGROUND

[0002] The bicycle front fork is used for connecting the bicycle handle and the automatic bicycle front wheel frame, and the main function of the bicycle front fork is to reduce the bumping feeling of the handle due to the ground undulation, and it is the main part of the bicycle. At present, the front fork assembly of most bicycles still adopts the conventional spring shock absorbing, and the single-structure spring shock absorbing easily causes the large oscillation distance of the bicycle handle in the riding process, thereby affecting the stability and safety of the riding. Therefore, the present application provides a light shock absorbing bicycle front fork assembly to improve the stability of shock absorbing and the safety and comfort of the riding. SUMMARY

[0003] In view of the above problems, the utility model provides a light shock absorbing bicycle front fork assembly to effectively solve the problem of poor shock absorbing effect of the existing bicycle front fork assembly.

[0004] To achieve the above object, the utility model provides the following technical scheme: a light shock absorbing bicycle front fork assembly, which comprises two aluminum alloy fork barrels, an aluminum alloy fork bridge, an aluminum alloy fork leg, two aluminum alloy shock absorbing stroke arms, an aluminum alloy fork shoulder and an aluminum alloy upper pipe, the aluminum alloy fork bridge is fixedly connected to the top end of the side edge of the two aluminum alloy fork barrels, the aluminum alloy fork leg is fixedly connected to the bottom end of the side edge of the two aluminum alloy fork barrels, the two aluminum alloy shock absorbing stroke arms are respectively slidably inserted into the top end of the two aluminum alloy fork barrels, the aluminum alloy fork shoulder is fixedly connected to the top end of the two aluminum alloy shock absorbing stroke arms, the aluminum alloy upper pipe is fixedly connected to the middle position of the top end of the aluminum alloy fork shoulder, the top end of the aluminum alloy fork barrel is provided with a limiting end cover, the bottom end of the aluminum alloy fork barrel is provided with a shock absorbing adjusting assembly, the bottom end of the inside of the aluminum alloy fork barrel is provided with a shock absorbing spring one, the bottom end of the inside of the aluminum alloy fork barrel is filled with hydraulic oil, the bottom end of the aluminum alloy shock absorbing stroke arm is fixedly provided with a combined piston body, the shock absorbing spring two located at the top end of the combined piston body is sleeved on the aluminum alloy shock absorbing stroke arm, the combined piston body is composed of a main piston, a supporting rod and a secondary piston, the main piston is fixedly connected to the bottom end of the aluminum alloy shock absorbing stroke arm, the supporting rod is fixedly connected to the bottom end of the main piston, the secondary piston is fixedly connected to the bottom end of the supporting rod, the main piston and the secondary piston are slidably connected to the inside of the aluminum alloy fork barrel, and a plurality of oil holes are formed in the secondary piston.

[0005] Preferably, the side edge of the top end of the inside of the aluminum alloy fork barrel is provided with an internal thread, and the bottom end of the outside edge of the limiting end cover is provided with an external thread.

[0006] Preferably, the aluminum alloy fork cylinder is provided with a filling port at the middle position of one side, and the filling port is provided with a sealing cover at one end.

[0007] Preferably, the damping adjusting assembly is composed of a sealing plug, a threaded rod and a rotating handle, the threaded rod is connected to the bottom end of the aluminum alloy fork cylinder and is threadedly connected with the aluminum alloy fork cylinder, the sealing plug is slidingly connected to the bottom end inside the aluminum alloy fork cylinder and is rotationally connected with the threaded rod, and the rotating handle is fixedly connected to the bottom end of the threaded rod.

[0008] Preferably, the threaded rod and the sealing plug are rotationally connected through a rotating connecting seat, and a threaded hole is formed in the middle position of the bottom end of the aluminum alloy fork cylinder and is threadedly connected with the threaded rod.

[0009] Compared with the prior art, the utility model has the beneficial effects that:

[0010] (1) In the work, through setting up aluminum alloy fork cylinder, aluminum alloy damping stroke arm, damping spring one, hydraulic oil, damping spring two and setting up combined piston body composed of main piston, support rod and auxiliary piston, the whole damping effect can be improved, damping damping can be realized through the cooperation of hydraulic oil and spring, and the stability and safety are avoided in the damping process.

[0011] (2) Through setting up filling port and sealing cover, hydraulic oil can be added, and through setting up damping adjusting assembly composed of sealing plug, threaded rod and rotating handle, the damping intensity can be adaptively adjusted, and the flexibility and convenience of use are improved.

[0012] (3) Through setting up bicycle front fork assembly which is made of aluminum alloy material, the overall weight can be reduced while the overall strength is ensured, and light weight is realized. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation of the utility model.

[0014] In the drawings:

[0015] Figure 1 It is a structure schematic view of the light weight damping bicycle front fork assembly of the utility model;

[0016] Figure 2 It is a connecting sectional view of the aluminum alloy fork cylinder and the aluminum alloy damping stroke arm of the utility model;

[0017] Figure 3 It is a partial exploded view of the light weight damping bicycle front fork assembly of the utility model;

[0018] Figure 4The utility model discloses aluminum alloy shock absorbing stroke arm and combined piston body connecting structure schematic diagram shows.

[0019] In the drawing: 1, aluminum alloy fork cylinder; 2, aluminum alloy fork bridge; 3, aluminum alloy fork foot; 4, aluminum alloy shock absorbing stroke arm; 5, aluminum alloy fork shoulder; 6, aluminum alloy upper pipe; 7, limiting end cover; 8, shock absorbing adjusting assembly; 9, shock absorbing spring one; 10, hydraulic oil; 11, combined piston body; 12, shock absorbing spring two; 13, main piston; 14, support rod; 15, auxiliary piston; 16, oil hole; 17, internal thread; 18, external thread; 19, oil filler; 20, sealing cover; 21, sealing plug; 22, threaded rod; 23, rotating handle; 24, rotating connecting seat; 25, threaded hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] By Figures 1 to 4 Be given, the utility model discloses a light shock absorbing bicycle front fork assembly, including two aluminum alloy fork cylinder 1, aluminum alloy fork bridge 2, aluminum alloy fork foot 3, two aluminum alloy shock absorbing stroke arm 4, aluminum alloy fork shoulder 5 and aluminum alloy upper pipe 6, aluminum alloy fork bridge 2 is fixedly connected to the top end of two aluminum alloy fork cylinder 1 side, aluminum alloy fork foot 3 is fixedly connected to the bottom end of two aluminum alloy fork cylinder 1 side, two aluminum alloy shock absorbing stroke arm 4 are respectively slid and are inserted in the top end of two aluminum alloy fork cylinder 1, aluminum alloy fork shoulder 5 is fixedly connected to the top end of two aluminum alloy shock absorbing stroke arm 4, aluminum alloy upper pipe 6 is fixedly connected to the middle position of aluminum alloy fork shoulder 5 top end, the top end of aluminum alloy fork cylinder 1 is provided with limiting end cover 7, and the bottom end of aluminum alloy fork cylinder 1 is inserted with shock absorbing adjusting assembly 8, and the bottom end in the inside of aluminum alloy fork cylinder 1 is provided with shock absorbing spring one 9, and the bottom end in the inside of aluminum alloy fork cylinder 1 is filled with hydraulic oil 10, and the bottom end of aluminum alloy shock absorbing stroke arm 4 is fixedly provided with combined piston body 11, and shock absorbing spring two 12 of combined piston body 11 top end is set on the aluminum alloy shock absorbing stroke arm 4, and combined piston body 11 is formed by main piston 13, support rod 14 and auxiliary piston 15, main piston 13 is fixedly connected to the bottom end of aluminum alloy shock absorbing stroke arm 4, support rod 14 is fixedly connected to the bottom end of main piston 13, auxiliary piston 15 is fixedly connected to the bottom end of support rod 14, and main piston 13 and auxiliary piston 15 are slidably connected to the inside of aluminum alloy fork cylinder 1, and a plurality of oil holes 16 are formed in auxiliary piston 15;

[0022] The aluminum alloy shock stroke arm 4 is inserted into the aluminum alloy fork tube 1. When encountering rough road, the aluminum alloy shock stroke arm 4 is extended and retracted along the aluminum alloy fork tube 1, and the shock is realized by the shock absorbing spring 9 and the shock absorbing spring 12. At the same time, the main piston 13, the support rod 14 and the auxiliary piston 15 are pressed down, the hydraulic oil 10 enters the main piston 13 and the auxiliary piston 15 through the oil hole 16, the hydraulic oil 10 is returned through the oil hole 16, and the two aluminum alloy fork tubes 1, the aluminum alloy fork bridge 2, the aluminum alloy fork foot 3, the two aluminum alloy shock stroke arms 4, the aluminum alloy fork shoulder 5 and the aluminum alloy upper tube 6 are all made of aluminum alloy, so as to realize light weight.

[0023] The Figures 1 to 3 The inner thread 17 is arranged at the top end of the aluminum alloy fork tube 1, the outer thread 18 is arranged at the bottom end of the outer side of the limiting end cover 7, and the oil filler hole 19 is arranged at the middle position of one side of the aluminum alloy fork tube 1. One end of the oil filler hole 19 is provided with a sealing cover 20.

[0024] The inner thread 17 and the outer thread 18 can be connected with the limiting end cover 7 and the aluminum alloy fork tube 1, and the oil filler hole 19 and the sealing cover 20 can be used to add hydraulic oil 10.

[0025] The Figures 1 to 3 The shock adjusting assembly 8 is composed of a sealing plug 21, a threaded rod 22 and a rotating handle 23. The threaded rod 22 is connected to the bottom end of the aluminum alloy fork tube 1 and is threadedly connected with the aluminum alloy fork tube 1. The sealing plug 21 is slidably connected to the bottom end inside the aluminum alloy fork tube 1 and is rotatably connected with the threaded rod 22. The rotating handle 23 is fixedly connected to the bottom end of the threaded rod 22. The threaded rod 22 and the sealing plug 21 are rotatably connected through a rotating connecting seat 24. A threaded hole 25 is formed in the middle position of the bottom end of the aluminum alloy fork tube 1 and is threadedly connected with the threaded rod 22.

[0026] According to the actual use, the shock strength can be adjusted. When adjusting, the rotating handle 23 is rotated, the rotating handle 23 drives the threaded rod 22 to rotate, the threaded rod 22 is lifted along the aluminum alloy fork tube 1, so as to drive the sealing plug 21 to be lifted and adjusted. When the sealing plug 21 moves upward, the shock absorbing spring 12 and the hydraulic oil 10 move upward, the shock stroke is shortened. When the sealing plug 21 moves downward, the shock absorbing spring 12 and the hydraulic oil 10 move downward, the shock stroke is increased.

[0027] In work, through setting up aluminum alloy fork cylinder, aluminum alloy shock absorbing stroke arm, shock absorbing spring one, hydraulic oil, shock absorbing spring two, and setting up combined piston body composed of main piston, support rod and auxiliary piston, the overall shock absorbing effect can be improved, through the cooperation of hydraulic oil and spring, damping shock absorbing can be realized, avoiding the influence of stability and safety caused by too large amplitude in shock absorbing process; through setting up oil filler and sealing cover, hydraulic oil can be added, through setting up shock absorbing adjusting assembly composed of sealing plug, threaded rod and rotating handle, the shock absorbing strength can be adaptively adjusted, improving the flexibility and convenience of use, through setting up the whole bicycle fork assembly as aluminum alloy material, the overall strength can be ensured while reducing the overall weight, realizing light weight.

Claims

1. A lightweight shock absorbing front fork assembly for a bicycle comprising two aluminium alloy fork tubes (1), an aluminium alloy fork bridge (2), an aluminium alloy fork crown (3), two aluminium alloy shock absorbing travel arms (4), an aluminium alloy fork crown (5) and an aluminium alloy top tube (6) characterised in that: The aluminum alloy fork bridge (2) is fixedly connected to the top end of the side edge of the two aluminum alloy fork barrels (1), the aluminum alloy fork feet (3) are fixedly connected to the bottom end of the side edge of the two aluminum alloy fork barrels (1), the two aluminum alloy damping stroke arms (4) are respectively slidably inserted into the top end of the two aluminum alloy fork barrels (1), the aluminum alloy fork shoulders (5) are fixedly connected to the top end of the two aluminum alloy damping stroke arms (4), the aluminum alloy upper pipe (6) is fixedly connected to the middle position of the top end of the aluminum alloy fork shoulders (5), the top end of the aluminum alloy fork barrel (1) is provided with a limiting end cover (7), the bottom end of the aluminum alloy fork barrel (1) is provided with a damping adjusting assembly (8), the bottom end of the inside of the aluminum alloy fork barrel (1) is provided with a damping spring I (9), the bottom end of the inside of the aluminum alloy fork barrel (1) is filled with hydraulic oil (10), the bottom end of the aluminum alloy damping stroke arm (4) is fixedly provided with a combined piston body (11), the aluminum alloy damping stroke arm (4) is sleeved with a damping spring II (12) located at the top end of the combined piston body (11), the combined piston body (11) is composed of a main piston (13), a supporting rod (14) and a secondary piston (15), the main piston (13) is fixedly connected to the bottom end of the aluminum alloy damping stroke arm (4), the supporting rod (14) is fixedly connected to the bottom end of the main piston (13), the secondary piston (15) is fixedly connected to the bottom end of the supporting rod (14), the main piston (13) and the secondary piston (15) are slidably connected to the inside of the aluminum alloy fork barrel (1), and a plurality of oil holes (16) are formed in the secondary piston (15).

2. A lightweight damped bicycle fork assembly according to claim 1, characterized in that: The side edge of the top end of the inside of the aluminum alloy fork barrel (1) is provided with an internal thread (17), and the bottom end of the outside edge of the limiting end cover (7) is provided with an external thread (18).

3. A lightweight damped bicycle fork assembly according to claim 1, characterized in that: The middle position of one side of the aluminum alloy fork barrel (1) is fixedly provided with a filling port (19), and one end of the filling port (19) is provided with a sealing cover (20).

4. A lightweight damped bicycle fork assembly according to claim 1, characterized in that: The damping adjusting assembly (8) is composed of a sealing plug (21), a threaded rod (22) and a rotating handle (23), the threaded rod (22) is insertedly connected to the bottom end of the aluminum alloy fork barrel (1) and is threadedly connected with the aluminum alloy fork barrel (1), the sealing plug (21) is slidably connected to the bottom end of the inside of the aluminum alloy fork barrel (1) and is rotatably connected with the threaded rod (22), and the rotating handle (23) is fixedly connected to the bottom end of the threaded rod (22).

5. A lightweight damped bicycle fork assembly according to claim 4, characterised in that: The threaded rod (22) and the sealing plug (21) are rotatably connected through a rotating connecting seat (24), and the middle position of the bottom end of the aluminum alloy fork barrel (1) is provided with a threaded hole (25) which is threadedly connected with the threaded rod (22).

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