Damping device for bicycle front fork

Abstract

The utility model provides a shock absorption device for a bicycle front fork, which comprises the bicycle front fork, shock absorber fixing rods are respectively fixed on the left side and the right side of the lower portion of the bicycle front fork, shock absorber sleeves are movably connected with the lower portions of the outer sides of the shock absorber fixing rods, and a bent reinforcing beam is fixed on the upper portion of the front end of each shock absorber sleeve. A lubricating oil storage device is fixed to the lower portion of the left side of the bicycle front fork, a rubber oil pipe is connected to the lower portion of the lubricating oil storage device, and an automatic lubricating oil adding device is fixed to the upper portion of the left side of the shock absorber sleeve. The shock absorber fixing rod has the advantages that through the arrangement of the supporting frame, the sealing sleeving ring, the oil way groove and the oil seepage cotton cushion, the joint of the shock absorber fixing rod and the shock absorber sleeve can be lubricated through relative movement between the shock absorber fixing rod and the shock absorber sleeve, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycle front fork shock absorption, in particular to a shock absorption device for a bicycle front fork. Background Art

[0002] Electric bicycles and electric vehicles on the market are generally equipped with shock absorbing devices on their front fork frames, which can buffer the vibration caused by uneven ground. The existing bicycle front fork shock absorbing structure includes: a front fork frame, which includes a front fork main pipe, a connecting bridge pipe and a front fork branch pipe, one end of the front fork main pipe is connected to the connecting bridge pipe, and the two ends of the connecting bridge pipe are connected to the two front fork branch pipes; a front fork sleeve, which is sleeved on the outside of the front fork branch pipe; a shock absorbing assembly, which includes a shock absorbing spring, a screw rod and a screw nut. The telescopic rod of this type of shock absorber is exposed to the outside for a long time, which is easy to cause the lubricating oil to evaporate, and the loss of lubrication of the lubricating oil is easy to cause damage to the connection. Utility Model Content

[0003] In view of the above technical problems, the utility model provides a shock absorbing device for a bicycle front fork, which stores and adds lubricating oil through an oil storage tank and an oil pipe, and is combined with a cotton pad that can slowly seep oil to achieve automatic lubrication of the connection.

[0004] The technical solution is as follows: a shock absorbing device for a bicycle front fork, comprising a bicycle front fork, wherein shock absorber fixing rods are respectively fixed on the left and right sides of the lower part of the bicycle front fork, a shock absorber sleeve is movably connected to the outer lower part of the shock absorber fixing rod, and a curved reinforcement beam is fixed to the upper front end of the shock absorber sleeve. It is characterized in that a lubricating oil storage device is fixed to the lower left part of the bicycle front fork, a rubber oil pipe is connected to the lower part of the lubricating oil storage device, and an automatic lubricating oil adder is fixed to the upper left part of the shock absorber sleeve.

[0005] Preferably, the lubricating oil storage device comprises an oil storage tank, the lower portion of which is integrally provided with an oil pipe connection cover, a fixing bracket is fixed to the right side of the oil storage tank, a sealing cover is threadedly connected to the upper portion of the oil storage tank, and a ventilation hole is provided on the inner side of the sealing cover.

[0006] Preferably, the automatic lubricating oil adder comprises a support frame, a sealing sleeve ring is fixed to the upper right side of the support frame, an oil path groove is provided on the inner side of the sealing sleeve ring, and an oil-permeable cotton pad is clamped on the inner side of the sealing sleeve ring.

[0007] Preferably, the lower right portion of the fixing bracket is fixedly connected to the lower left portion of the front fork of the bicycle, and the oil pipe connecting cover is located on the upper left portion of the shock absorber fixing rod.

[0008] Preferably, the upper portion of the rubber oil pipe is glued together with the lower portion of the oil pipe connecting cover, and the inner side of the rubber oil pipe is communicated with the inner side of the oil pipe connecting cover.

[0009] Preferably, the lower right portion of the support frame is fixedly connected to the shock absorber sleeve, and the sealing sleeve ring is sleeved on the lower outer portion of the shock absorber fixing rod.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] In the utility model, the arrangement of the oil storage tank, the oil pipe connection cover, the fixing bracket, the sealing cover and the air-permeable holes is conducive to storing the lubricating oil and ensuring the continuous feeding of the lubricating oil.

[0012] In the utility model, the arrangement of the support frame, the sealing sleeve ring, the oil path groove and the oil-permeable cotton pad is conducive to lubricating the connection between the shock absorber fixing rod and the shock absorber sleeve through the relative movement between the shock absorber fixing rod and the shock absorber sleeve, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the lubricating oil storage device of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the automatic lubricating oil adder of the utility model.

[0016] In the figure:

[0017] 1. Bicycle front fork; 2. Shock absorber fixing rod; 3. Shock absorber sleeve; 4. Curved reinforcement beam; 5. Lubricating oil storage device; 51. Oil storage tank; 52. Oil pipe connecting cover; 53. Fixed bracket; 54. Sealing cover; 55. Breathable holes; 6. Rubber oil pipe; 7. Automatic lubricating oil adder; 71. Support frame; 72. Sealing sleeve ring; 73. Oil channel groove; 74. Oil-permeable cotton pad. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Example:

[0020] As attached Figure 1 As shown, a shock absorbing device for a bicycle front fork comprises a bicycle front fork 1, wherein shock absorber fixing rods 2 are respectively fixed to the left and right sides of the lower part of the bicycle front fork 1, a shock absorber sleeve 3 is movably connected to the outer lower part of the shock absorber fixing rod 2, and a curved reinforcing beam 4 is fixed to the front upper part of the shock absorber sleeve 3. It is characterized in that a lubricating oil storage device 5 is fixed to the lower left part of the bicycle front fork 1, a rubber oil pipe 6 is connected to the lower part of the lubricating oil storage device 5, and an automatic lubricating oil adder 7 is fixed to the upper left part of the shock absorber sleeve 3.

[0021] As attached Figure 2 As shown, in the above embodiment, specifically, the lubricating oil storage device 5 includes an oil storage tank 51, the lower part of the oil storage tank 51 is integrally provided with an oil pipe connecting cover 52, a fixing bracket 53 is fixed to the right side of the oil storage tank 51, and a sealing cover 54 is threadedly connected to the upper part of the oil storage tank 51, and a ventilation hole 55 is opened on the inner side of the sealing cover 54.

[0022] As attached Figure 3 As shown, in the above embodiment, specifically, the automatic lubricating oil adder 7 includes a support frame 71, a sealing sleeve ring 72 is fixed to the upper right side of the support frame 71, an oil path groove 73 is opened on the inner side of the sealing sleeve ring 72, and an oil-seeping cotton pad 74 is clamped on the inner side of the sealing sleeve ring 72.

[0023] In the above embodiment, specifically, the lower portion of the rubber oil pipe 6 is fixed to the upper left side of the sealing sleeve ring 72 , and the inner side of the rubber oil pipe 6 is communicated with the inner side of the oil passage groove 73 .

[0024] In the above embodiment, specifically, the oil-seeping cotton pad 74 is sleeved on the outer side of the shock absorber fixing rod 2 , and the inner side of the oil-seeping cotton pad 74 is in contact with the outer side of the shock absorber fixing rod 2 .

[0025] In the above embodiment, specifically, the oil-seeping cotton pad 74 is clamped on the inner side of the oil passage groove 73 .

[0026] How it works

[0027] The working principle of the utility model is as follows: the staff first opens the sealing cover 54, adds enough lubricating oil to the inner side of the oil storage tank 51, and then seals the oil storage tank 51 through the sealing cover 54. The lubricating oil will enter the oil path groove 73 on the inner side of the sealing sleeve ring 72 through the cooperation of the oil pipe connecting cover 52 and the rubber oil pipe 6. The oil-seeping cotton pad 74 has a blocking effect, and the oil-seeping cotton pad 74 will absorb the lubricating oil until the lubricating oil slowly penetrates into the inner side of the oil-seeping cotton pad 74. During shock absorption, the shock absorber fixing rod 2 will move up and down on the inner side of the shock absorber sleeve 3, and at the same time, the oil-seeping cotton pad 74 will fit on the outer side of the shock absorber fixing rod 2 and move up and down to lubricate the outer side of the shock absorber fixing rod 2.

[0028] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A shock absorbing device for a bicycle front fork, comprising a bicycle front fork (1), wherein shock absorber fixing rods (2) are respectively fixed to the left and right sides of the lower part of the bicycle front fork (1), a shock absorber sleeve (3) is movably connected to the outer lower part of the shock absorber fixing rod (2), and a curved reinforcing beam (4) is fixed to the upper front end of the shock absorber sleeve (3), characterized in that: A lubricating oil storage device (5) is fixed to the lower left side of the bicycle front fork (1), a rubber oil pipe (6) is connected to the lower part of the lubricating oil storage device (5), and an automatic lubricating oil adding device (7) is fixed to the upper left side of the shock absorber sleeve (3).

2. The shock absorbing device for a bicycle front fork according to claim 1, characterized in that: The lubricating oil storage device (5) comprises an oil storage tank (51), the lower part of which is integrally provided with an oil pipe connection cover (52), a fixing bracket (53) is fixed to the right side of the oil storage tank (51), and the upper part of the oil storage tank (51) is threadedly connected with a sealing cover (54), and a ventilation hole (55) is provided on the inner side of the sealing cover (54).

3. The shock absorbing device for a bicycle front fork according to claim 1, characterized in that: The automatic lubricating oil adder (7) comprises a support frame (71), a sealing sleeve ring (72) is fixed to the upper right side of the support frame (71), an oil passage groove (73) is provided on the inner side of the sealing sleeve ring (72), and an oil-permeable cotton pad (74) is clamped on the inner side of the sealing sleeve ring (72).

4. The shock absorbing device for a bicycle front fork according to claim 2, characterized in that: The lower right portion of the fixing bracket (53) is fixedly connected to the lower left portion of the bicycle front fork (1), and the oil pipe connection cover (52) is located on the upper left portion of the shock absorber fixing rod (2).

5. The shock absorbing device for a bicycle front fork according to claim 2, characterized in that: The upper portion of the rubber oil pipe (6) is glued together with the lower portion of the oil pipe connection cover (52), and the inner side of the rubber oil pipe (6) is communicated with the inner side of the oil pipe connection cover (52).

6. The shock absorbing device for a bicycle front fork according to claim 3, characterized in that: The right lower portion of the support frame (71) is fixedly connected to the shock absorber sleeve (3), and the sealing sleeve ring (72) is sleeved on the outer lower portion of the shock absorber fixing rod (2).

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