Shock absorption device for bicycle front fork tube

Abstract

The utility model provides a shock absorption device for a bicycle front fork tube, which comprises a connecting unit and a damping unit, the connecting unit is used for connecting the bicycle front fork tube and the damping unit, the front fork tube is connected to the bottom end of the connecting unit and is used for being combined with a bicycle front wheel, and the damping unit is used for damping the bicycle front fork tube. The damping unit is used for being combined with a handle vertical pipe and arranged on the connecting unit in a sleeved mode to prevent the connecting unit from making direct contact with the handle vertical pipe, and therefore the shock absorption device with the good shock absorption effect is formed.

Description

Technical Field

[0001] The present application relates to a shock absorbing device for a bicycle, and more particularly to a shock absorbing and isolating device for a front fork tube of a bicycle. Background Art

[0002] The top end of the existing bicycle front fork tube can be rotatably passed through the bicycle head tube and connected to a handlebar vertical tube (faucet), which is connected to a bicycle handlebar, and the bottom end of the front fork tube is rotatably provided with the bicycle front wheel. When the rider turns the handlebar, the direction of the front wheel can be changed, so that the cyclist can control the direction of the bicycle.

[0003] However, the front fork tube and the handlebar stem of the existing bicycle are only connected by a sleeve portion with a C-shaped opening formed at one end of the stem and two bolts, and there is no shock absorbing or isolating structure between the two. Therefore, when the bicycle is traveling on a rough road, the impact force between the front wheel and the road surface will be directly transmitted from the front fork tube to the handlebar stem and the handlebar, making the rider feel uncomfortable when riding the bicycle. What's worse, it will affect the rider's control over the bicycle. If the rider is not careful, it is easy to cause accidents such as falling off the bicycle. Further improvement is necessary. Utility Model Content

[0004] The technical problem to be solved by the present application is to provide a shock absorbing device for a front fork tube of a bicycle, which provides a shock absorbing and isolating effect by means of a damping unit arranged between the front fork tube and the handlebar stem, so as to prevent the vibration generated by the front wheel of the bicycle from being directly transmitted from the front fork tube to the handlebar stem and the handlebar, thereby achieving the purpose of improving the riding comfort and safety of the bicycle.

[0005] To achieve the above-mentioned purpose, the present application provides a shock absorbing device for a front fork tube of a bicycle, which includes a damping unit and a connecting unit. The damping unit includes a main body extending along an axial direction and is connected to a handlebar stem of a bicycle through the main body. The connecting unit is provided with a front fork tube connecting portion and a damping unit connecting portion. The front fork tube connecting portion is used to be connected to a front fork tube of the bicycle, and the damping unit connecting portion is used to be connected to the damping unit.

[0006] In the shock absorbing device, the front fork tube joint portion covers the front fork tube, and the front fork tube joint portion is provided with a locking portion for a locking piece to be coupled to fix the front fork tube joint portion to the front fork tube.

[0007] The shock absorbing device, wherein the inner diameter of the front fork tube joint is larger than the inner diameter of the damping unit joint, the outer surface of the body is provided with a flange extending radially outward, and the flange at least partially covers the front fork tube joint.

[0008] The shock absorbing device is characterized in that a first through hole is formed on the damping unit joint portion, and the main body is provided with a second through hole corresponding to the first through hole. After the main body is combined with the damping unit joint portion, a pin is inserted through the first through hole and the second through hole to combine the damping unit and the connecting unit.

[0009] In the shock absorbing device, the latch is provided with a screw hole, and the top end of the connecting unit is provided with an upper cover, which is screwed into the screw hole by a bolt to fix the upper cover to one end of the damping unit joint.

[0010] In the shock absorbing device, the latch comprises a fixing bolt and a combining piece, one end of the fixing bolt is combined with the combining piece, and the combining piece is against the outside of the body.

[0011] The shock absorbing device, wherein the latch includes a fixing bolt and a combining piece, the fixing bolt is combined with the combining piece, the fixing bolt has a first tool end, the combining piece has a second tool end, and the first tool end and the second tool end are arranged on the handle vertical tube.

[0012] In the shock absorbing device, the damping unit and the connecting unit are made of different materials.

[0013] In the shock absorbing device, the material of one of the damping unit or the connecting unit is non-metal.

[0014] In the shock absorbing device, the damping unit and the connecting unit have different elastic coefficients, and the elastic coefficient of the damping unit is greater than the elastic coefficient of the connecting unit.

[0015] Through the technical means of the present application, a damping unit is used to provide shock absorption and isolation effects between the front fork tube and the handlebar stem, so that the vibration generated by the front wheel of the bicycle and the road surface will not be directly transmitted to the handlebar stem and the handlebar, thereby achieving the effect of improving the comfort and safety of bicycle riding.

[0016] The details of other effects and embodiments of the present application are described below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, without paying any creative work, the present application can also be applied to other similar scenarios based on these drawings.

[0018] Figure 1 This is a three-dimensional appearance diagram of the first embodiment of the present application;

[0019] Figure 2 It is a partial three-dimensional exploded view of the first embodiment of the present application;

[0020] Figure 3 A top view of the first embodiment of the present application;

[0021] Figure 4 for Figure 3 The cross-sectional view in the 4-4 direction;

[0022] Figure 5 for Figure 3 The cross-sectional view in the 5-5 direction;

[0023] Figure 6 This is a three-dimensional appearance diagram of the second embodiment of the present application;

[0024] Figure 7 It is a partial three-dimensional exploded view of the second embodiment of the present application;

[0025] Figure 8 A top view of the second embodiment of the present application;

[0026] Fig. 9 for Figure 8 The cross-sectional view in the 9-9 direction;

[0027] Fig.10 This is a three-dimensional appearance diagram of the third embodiment of the present application;

[0028] Fig.11 It is a partial three-dimensional exploded view of the third embodiment of the present application;

[0029] Fig.12 A top view of a third embodiment of the present application;

[0030] Fig.13 for Fig.12 The cross-sectional view along the 13-13 direction;

[0031] Fig.14 This is a three-dimensional appearance diagram of the fourth embodiment of the present application;

[0032] Fig.15 It is a partial three-dimensional exploded view of the fourth embodiment of the present application;

[0033] Fig.16 A top view of a fourth embodiment of the present application;

[0034] Fig.17 for Fig.16 The cross-sectional view along the 17-17 direction;

[0035] Fig.18 for Fig.16 The cross-sectional view along the 18-18 direction;

[0036] Fig.19 This is a three-dimensional appearance diagram of the fifth embodiment of the present application;

[0037] Fig. 20 It is a partial three-dimensional exploded view of the fifth embodiment of the present application;

[0038] Fig.21 A top view of a fifth embodiment of the present application;

[0039] Fig. 22 for Fig.21 The cross-sectional view along the 22-22 direction;

[0040] Fig.23 for Fig.21 Cross-sectional view along the 23-23 direction.

[0041] Explanation of symbols

[0042] 10, 10A, 10B, 10C: Front fork tube

[0043] 12, 12A, 12B, 12C, 12D: Connection unit

[0044] 121: Locking part

[0045] 1211: Grooving

[0046] 1212: Locking hole

[0047] 122, 122B, 122C, 122D: First perforation

[0048] 123, 123A, 123B, 123C, 123D: Front fork tube joint

[0049] 124: Locking firmware

[0050] 125, 125A, 125B, 125C, 125D: Damping unit joint

[0051] 1251D: Retaining ring

[0052] 1252D: Fastener holes

[0053] 14: Front fork

[0054] 16, 16A, 16B, 16C, 16D: Damping unit

[0055] 162, 162A, 162B, 162C, 162D: body

[0056] 1622, 1622B, 1622C, 1622D: Second perforation

[0057] 164, 164B, 164C, 164D: flange

[0058] 166, 166C: Latch

[0059] 1662: Screw hole

[0060] 163A: Bottom ring

[0061] 165A, 165B, 165C, 165D: Top ring

[0062] 167B, 167D: Fixed bolt

[0063] 1671D: First tool end

[0064] 168B, 168D: Joint

[0065] 1681D: Second tool end

[0066] 18, 18A, 18B, 18C, 18D: Upper cover

[0067] 182: Bolt

[0068] 19D: Fasteners

[0069] 191D: cushion

[0070] 20, 20A, 20B, 20C: Head pipe

[0071] 30, 30A, 30B, 30C, 30D: Handle riser

[0072] 32B, 32C, 32D: Casing

[0073] 321B, 321C, 321D: Positioning holes

[0074] A: Axial

[0075] S: Expander

[0076] S1: Expansion bolt DETAILED DESCRIPTION

[0077] The positional relationships described in the following embodiments include: up, down, left and right. Unless otherwise specified, they are all based on the directions in which the components are drawn in the drawings.

[0078] Please refer to Figures 1 to 5The bicycle with a shock absorbing device for a front fork tube of a bicycle mainly comprises a steering device, which generally comprises a head tube 20, a front fork tube 10 and a handlebar vertical tube 30, etc., wherein the front fork tube 10 used for setting the present application is connected to a front fork portion 14, the front fork tube 10 rotatably passes through the head tube 20, and a head bowl set is usually arranged between the front fork tube 10 and the head tube 20 to keep the front fork tube 10 and the head tube 20 able to rotate smoothly relative to each other, and the front fork portion 14 is rotatably combined with the front wheel of the bicycle. In the first embodiment of the present application, a connecting unit 12 is sleeved on the part of the front fork tube 10 extending out of the head tube 20, an expander S is embedded in the top of the front fork tube 10, and an expansion bolt S1 is penetrated in the center of the connecting unit 12, and the expansion bolt S1 is screwed on the expander S to fix the connecting unit 12 to the top of the front fork tube, and then the connecting unit 12 is connected to a damping unit 16 to form the above-mentioned shock absorbing device.

[0079] For detailed structure of shock absorbing device, please refer to Figures 2 to 5 The damping unit 16 of this embodiment mainly includes a body 162 and a latch 166. The body 162 extends along an axial direction A, and a ring-shaped flange 164 is radially protruded from the bottom end of the body 162. The connecting unit 12 is a tubular body and is provided with a front fork tube joint portion 123 and a damping unit joint portion 125 connected along the axial direction A. In this embodiment, the outer diameter of the front fork tube joint portion 123 is larger than the outer diameter of the damping unit joint portion 125, the inner diameter of the front fork tube joint portion 123 is larger than the inner diameter of the damping unit joint portion 125, and the front fork tube joint portion 123 is used to fit on the front fork tube 10. A locking portion 121 is provided on one side around the front fork tube joint portion 123, and the locking portion 121 includes a cut groove 1211 and at least one locking hole 1212. In this preferred embodiment, at least one locking hole 1212 includes two locking holes, each locking hole 1212 passes through both sides of the groove 1211, and each locking hole 1212 has a thread on one of the two sides separated by the groove 1211, and a locking piece 124 is respectively combined with each locking hole 1212 to fit the front fork tube joint 123 and clamp it tightly on the front fork tube 10.

[0080] When the body 162 of the damping unit 16 is sleeved on the connecting unit 12, the body 162 of the damping unit 16 covers the damping unit joint portion 125 of the connecting unit 12, the flange 164 at least partially covers the front fork tube joint portion 123, and the flange 164 abuts against the front fork tube joint portion 123, and a first through hole 122 and a second through hole 1622 are respectively provided on the damping unit joint portion 125 and the body 162 of the damping unit 16, which are opposite to each other in a straight line, that is, opposite to each other along the straight line, so that the latch 166 can be sequentially inserted into the second through hole 1622 of the damping unit 16. and the first through hole 122 of the damping unit joint 125, so that the damping unit 16 can be firmly positioned at the predetermined position of the connecting unit 12. In this way, when the handlebar stem 30 of this embodiment is connected to the front fork tube 10 through the shock absorbing device formed by the connecting unit 12 and the damping unit 16, the C-shaped opening at one end of the handlebar stem 30 will be fitted and tightly clamped on the body 162 of the damping unit 16, connected to the connecting unit 12 via the damping unit 16, and finally connected to the front fork tube 10 via the connecting unit 12, so the handlebar stem 30 will not directly contact the front fork tube 10.

[0081] Secondly, when the front fork tube 10 is combined with the shock absorbing device and the handlebar vertical tube 30, an upper cover 18 for closing the opening at the top of the connecting unit 12 is provided at the top of the connecting unit 12. The upper cover 18 is a ring body and a bolt 182 is provided in the center. A screw hole 1662 for the bolt 182 to be screwed is provided on the latch 166 of the damping unit 16. The bolt 182 is screwed into the screw hole 1662 to fix the upper cover 18 to one end of the main body 162, and the latch 166 will not rotate or arbitrarily disengage from the first through hole 122 of the connecting unit 12 and the second through hole 1622 of the damping unit 16.

[0082] The connection unit 12 combined with the front fork tube 10 of the present application is connected to the damping unit 16, and the damping unit 16 and / or the connection unit 12 have a damping effect of attenuating the vibration when transmitting the vibration. For example, the elastic coefficients of the damping unit 16 and the connection unit 12 are set to have different elastic coefficients, and the difference in elastic coefficients is derived from the different materials of the damping unit 16 and the connection unit 12. In this embodiment, the material of the damping unit 16 is set to a non-metallic material such as plastic, rubber or composite material, and the material of the connection unit 12 is set to metal; in other preferred embodiments, the material of the damping unit 16 can also be set to metal, and the material of the connection unit 12 can be changed to a non-metallic material such as plastic, rubber or composite material. Therefore, when the bicycle is ridden on a rough road, the vibration generated between the front wheel and the road surface will not be directly transmitted to the handlebar stem 30 and the handlebars due to the shock absorption and isolation effects provided by the damping unit 16 and / or the connecting unit 12. In this way, the rider's riding comfort can be maintained, and the handlebars can be prevented from shaking due to vibration, thereby improving the rider's controllability and safety of the bicycle.

[0083] Please refer to Figures 6 to 9 In the second embodiment of the present application, a bicycle having a shock absorbing device for a bicycle front fork tube also includes a head tube 20A, a front fork tube 10A and a handlebar stem 30A. The front fork tube 10A rotatably penetrates the head tube 20A, and a connecting unit 12A is sleeved on the portion of the front fork tube 10A extending out of the head tube 20A. The connecting unit 12A is further connected to a damping unit 16A to form the above-mentioned shock absorbing device.

[0084] The connecting unit 12A is a tubular body and is provided with a front fork tube joint portion 123A and a damping unit joint portion 125A connected along an axial direction A. The outer diameter of the front fork tube joint portion 123A is larger than the outer diameter of the damping unit joint portion 125A, and the front fork tube joint portion 123A is tightly fastened to the top of the front fork tube 10A and fixed. The damping unit 16A includes a body 162A, a bottom ring 163A and a top ring 165A. The body 162A, the bottom ring 163A and the top ring 165A are all sleeved on the connecting unit 12A for being combined with the front fork tube 10. Specifically, the body 162A, the bottom ring 163A and the top ring 165A are sleeved on the damping unit joint portion 125A of the connecting unit 12A from bottom to top, and the bottom ring 163A abuts against the top end of the front fork tube joint portion 123A of the connecting unit 12A, and the top ring 165A is combined with the connecting unit 12A. The damping unit 16A is abutted against an upper cover 18A at the top of the unit 12A. When the C-shaped opening of the handlebar stem 30A is sleeved on the front fork tube 10, the handlebar stem 30A is sleeved and clamped on the body 162A of the damping unit 16A for fixation. The bottom ring 163A and the top ring 165A are respectively located at the bottom and top of the C-shaped opening of the handlebar stem 30A. In this way, through the arrangement of the damping unit 16A, the vibration generated by the front wheel can be prevented from being directly transmitted to the handlebar stem 30A and the handlebar, which can improve the comfort and safety of the bicycle when riding.

[0085] Please refer to Figures 10 to 13 In the third embodiment of the present application, a bicycle having a shock absorbing device for a front fork tube of a bicycle also includes a head tube 20B, a front fork tube 10B and a handlebar stem 30B. The front fork tube 10B rotatably penetrates the head tube 20B, and a connecting unit 12B is sleeved on a portion of the front fork tube 10B extending out of the head tube 20B. The connecting unit 12B is further connected to a damping unit 16B to form the above-mentioned shock absorbing device. The handlebar stem 30B is a tubular body extending in the front-to-back direction, and a sleeve portion 32B is provided at one end of the rear side of the handlebar stem 30B, so that the sleeve portion 32B is sleeved on the damping unit 16B of the shock absorbing device, and a positioning hole 321B is penetrated on the rear side of the sleeve portion 32B.

[0086] The connecting unit 12B is a tubular body and is provided with a front fork tube joint portion 123B and a damping unit joint portion 125B connected along an axial direction A. In this embodiment, the outer diameter of the front fork tube joint portion 123B is larger than the outer diameter of the damping unit joint portion 125B, and the front fork tube joint portion 123B is fitted and clamped on the top of the front fork tube 10B for fixing. The damping unit 16B mainly includes a body 162B, a fixing bolt 167B, a coupling member 168B and a top ring 165B. An annular flange 164B is radially protruded from the bottom end of the body 162B. When the damping unit 16B is sleeved on the connecting unit 12B coupled to the top of the front fork tube 10B, the body 162B of the damping unit 16B is covered on the outer side of the damping unit coupling portion 125B of the connecting unit 12B, and the flange 164B abuts against the top end of the front fork tube connecting portion 123B. The first through hole 122B and the second through hole 1622B are respectively correspondingly arranged on the damping unit connecting portion 125B of the connecting unit 12B and the body 162B of the damping unit 16B, and the positioning hole 321B of the handlebar vertical tube 30B is directly opposite to the second through hole 1622B, so that the damping unit 16B can be adjusted to the desired position. After the fixing bolt 167B passes through the positioning hole 321B of the handlebar stem 30B, it passes through the second through hole 1622B of the damping unit 16B and the first through hole 122B of the connecting unit 12B in sequence. One end of the fixing bolt 167B is combined with the above-mentioned coupling member 168B and has the same function as the latch in the first preferred embodiment. At this time, the coupling member 168B is located in the handlebar stem 30B, and the coupling member 168B abuts against the outside of the body 162B, so that the damping unit 16B can be stably fixed on the connecting unit 12B, and further, the sleeve portion 32B at one end of the handlebar stem 30B is fitted around the body 162B of the damping unit 16B and fixed, so that the handlebar stem 30B cannot rotate relative to the connecting unit 12B or the damping unit 16B with the axial direction A as the rotation center.

[0087] In this embodiment, the positioning hole 321B is a countersunk hole, the fixing bolt 167B is a bolt with a head, and the coupling member 168B can be a nut or a column with a screw hole, etc., so that when the head of the fixing bolt 167B is inserted into the positioning hole 321B, the coupling member 168B can be screwed on one end of the fixing bolt 167B, and the top ring 165B is provided on the connecting unit 12B and abuts against the top edge of the body 162B of the damping unit 16B, and abuts against an upper cover 18B coupled to the top of the connecting unit 12B. When one end of the handlebar stem 30B is sleeved on the connecting unit 12B of the front fork tube 10B, the sleeve portion 32B at one end of the handlebar stem 30B will be sleeved and tightly clamped on the damping unit 16B of the shock absorbing device and fixed, and will not directly contact the front fork tube 10B, so as to prevent the vibration generated by the front wheel from being directly transmitted to the handlebar stem 30B and the handle, thereby improving the comfort and safety of the bicycle when riding.

[0088] Please refer to Figures 14 to 18 In the fourth embodiment of the present application, a bicycle with a shock absorbing device for a front fork tube of a bicycle also includes a head tube 20C, a front fork tube 10C and a handlebar stem 30C. The front fork tube 10C rotatably penetrates the head tube 20C, and a connecting unit 12C is sleeved on the portion of the front fork tube 10C extending out of the head tube 20C. The connecting unit 12C is further connected to a damping unit 16C to form the above-mentioned shock absorbing device. The handlebar stem 30C is a tubular body extending in the front-to-back direction and has a sleeve portion 32C at one end of the rear side of the handlebar stem 30C, so that the sleeve portion 32C is sleeved on the damping unit 16C of the shock absorbing device, and a positioning hole 321C penetrates the sleeve portion 32C along the left-right direction.

[0089] The connecting unit 12C is a tubular body and is provided with a front fork tube joint portion 123C and a damping unit joint portion 125C connected along an axial direction A. In the present embodiment, the outer diameter of the front fork tube joint portion 123C is larger than the outer diameter of the damping unit joint portion 125C, and the front fork tube joint portion 123C is used to fit and be tightly clamped on the top of the front fork tube 10C for fixing. The damping unit 16C mainly includes a body 162C, a latch 166C and a top ring 165C. A ring-shaped flange 164C is radially extended from the bottom end of the body 162C. When the damping unit 16C is sleeved on the connecting unit 12C, the body 162C of the damping unit 16C is covered on the outside of the damping unit connecting portion 125C of the connecting unit 12C, and the flange 164C is against the top of the front fork tube connecting portion 123C of the connecting unit 12C. A first through hole 122C and a second through hole 123C are respectively provided on the damping unit connecting portion 125C of the connecting unit 12C and the body 162C of the damping unit 16C. The positioning hole 321C of the handlebar stem 30C is also linearly opposite to the second through hole 1622C and the first through hole 122C, so that the above-mentioned latch 166C can sequentially penetrate through the positioning hole 321C of the handlebar stem 30C, the second through hole 1622C of the damping unit 16C and the first through hole 122C of the connecting unit 12C, so that the damping unit 16C can be stably fixed on the connecting unit 12C, and the sleeve portion 32C at one end of the handlebar stem 30C can be fitted on the body 162C of the damping unit 16C and fixed, so that the handlebar stem 30C cannot rotate relative to the connecting unit 12C or the damping unit 16C with the axial direction A as the rotation center.

[0090] In this embodiment, one side of the positioning hole 321C is a countersunk hole, and the other side is a screw hole. The latch 166C is a bolt and passes through one side of the positioning hole 321C, the second through hole 1622C, and the first through hole 122C in sequence, and then is screwed to the other side of the positioning hole 321C to be fixed, so that the latch 166C is fixed to the handlebar standpipe 30C and passes through the second through hole 1622C and the first through hole 122C. The top ring 165C is sleeved on the connecting unit 12C and abuts against the top edge of the body 162C of the damping unit 16C, and abuts against an upper cover 18C combined with the top of the connecting unit 12C. When the handlebar stem 30C is installed on the shock absorbing device, the sleeve portion 32C at one end of the handlebar stem 30C will be fitted and tightly clamped on the damping unit 16C, and will not directly contact the connecting unit 12C installed on the front fork tube 10C, which can reduce the direct transmission of vibration and improve the comfort and safety of bicycle riding.

[0091] Secondly, the damping units 16, 16B, 16C in the above-mentioned preferred embodiments may also be objects with shock absorbing effects such as springs and elastomers. Any objects that can prevent the front fork tubes 10, 10A, 10B, 10C from directly contacting the handlebar stems 30, 30A, 30B, 30C and can isolate the vibration generated by the front wheel from being transmitted from the front fork tubes 10, 10A, 10B, 10C to the handlebar stems 30, 30A, 30B, 30C belong to the category of the damping units 16, 16B, 16C of the present application.

[0092] Furthermore, in addition to the first to fourth embodiments described above, the connection unit is configured to include a front fork tube connection portion and a damping unit connection portion that are integrally connected, and the front fork tube connection portion and the damping unit connection portion of the connection unit can also be connected by screw connection, riveting, or other connection means. Figures 19 to 23 In the fifth embodiment shown, the shock absorbing device also includes a connecting unit 12D, which is connected to a damping unit 16D to form a shock absorbing device. A handlebar stem 30D is provided in conjunction with the shock absorbing device. The handlebar stem 30D is a tubular body extending in the front-to-back direction and has a sleeve portion 32D at one end of the rear side of the handlebar stem 30D. The sleeve portion 32D is sleeved on the damping unit 16D of the shock absorbing device, and a positioning hole 321D passes through the sleeve portion 32D along the left-right direction.

[0093] The connection unit 12D of the fifth embodiment includes a front fork tube connection portion 123D and a damping unit connection portion 125D arranged in a concentric manner along an axial direction A, and the damping unit connection portion 125D is directly connected to the front fork tube connection portion 123D through a plurality of fasteners 19D. Specifically, the outer diameter of the front fork tube connection portion 123D is larger than the outer diameter of the damping unit connection portion 125D, the damping unit connection portion 125D is a tubular body and radially protrudes at the bottom end to form an annular fixing ring 1251D, the fixing ring 1251D is opposite to the front fork tube connection portion 123D, and the fixing ring 1251D has a plurality of fastener holes 1252D arranged in a circumferential manner, and the plurality of fasteners 19D are screws, and the fasteners 19D respectively pass through the fastener holes 1252D and are screwed to the front fork tube connection portion 123D, so that the front fork tube connection portion 123D and the damping unit connection portion 125D are connected to form the above-mentioned connection unit 12D.

[0094] The damping unit 16D mainly includes a body 162D, a fixing bolt 167D, a coupling member 168D and a top ring 165D. An annular flange 164D is radially extended from the bottom end of the body 162D. When the damping unit 16D is sleeved on the connecting unit 12D, the body 162D of the damping unit 16D is covered on the outer side of the damping unit connecting portion 125D of the connecting unit 12D, and the flange 164D abuts against the fixing ring 1251D of the connecting unit 12D. A first through hole 122D and a second through hole 1622D are respectively arranged on the damping unit connecting portion 125D of the connecting unit 12D and the body 162D of the damping unit 16D, which are linearly opposite to each other. The positioning hole 321D of the handlebar vertical tube 30D is also linearly opposite to the second through hole 1622D and the first through hole 122D, so that the fixing bolt 16 7D sequentially penetrates through the positioning hole 321D of the handlebar stem 30D, the second through hole 1622D of the damping unit 16D and the first through hole 122D of the connecting unit 12D, and one end of the fixing bolt 167D is combined with the coupling member 168D and has the same function as the latch in the first preferred embodiment, so that the damping unit 16D can be stably fixed on the connecting unit 12D, and the sleeve portion 32D at one end of the handlebar stem 30D can be fitted on the body 162D of the damping unit 16D and fixed, so that the handlebar stem 30D cannot rotate relative to the connecting unit 12D or the damping unit 16D with the axial direction A as the rotation center, so that the handlebar stem 30D, the connecting unit 12D and the damping unit 16D are combined into one.

[0095] In the fifth embodiment, a buffer pad 191D can be sandwiched between the fixing ring 1251D of the damping unit joint 125D and the front fork tube joint 123D. The buffer pad 191D can increase the vibration buffering ability of the connection unit 12D itself. In this embodiment, both sides of the positioning hole 321D are countersunk holes, the fixing bolt 167D is a bolt and has a first tool end 1671D, and the connecting member 168D is a nut and has a second tool end 1681D, so that the connecting member 168D can be screwed and fixed to the fixing bolt 167D, and the first tool end 1671D and the second tool end 1681D are respectively arranged on the handlebar stand pipe 30D by being embedded on both sides of the positioning hole 321D. The top ring 165D is sleeved on the connection unit 12D and abuts against the top edge of the body 162D, and abuts against an upper cover 18D combined with the top of the connection unit 12D. When the handlebar stem 30D is installed on the shock absorbing device, the sleeve portion 32D at one end of the handlebar stem 30D will be fitted on the damping unit 16D and fixed without direct contact with the connecting unit 12D, thereby reducing direct transmission of vibration and improving the comfort and safety of bicycle riding.

[0096] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present application, and are not intended to limit the implementation methods of the technology of the present application in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present application, but they should still be regarded as technologies or embodiments that are essentially the same as the present application.

Claims

1. A shock absorbing device for a bicycle front fork tube, characterized in that: The shock absorbing device for the front fork tube of a bicycle comprises: a damping unit and a connecting unit; The damping unit comprises: a body extending along an axial direction and connected to a handlebar stem of a bicycle through the body; the connecting unit is provided with a front fork tube connecting portion and a damping unit connecting portion; the front fork tube connecting portion is used to connect to a front fork tube of the bicycle; the damping unit connecting portion is used to connect to the damping unit.

2. The shock absorbing device for a bicycle front fork tube according to claim 1, characterized in that: The front fork tube joint part covers the front fork tube, and the front fork tube joint part is provided with a locking part for a locking piece to be combined so as to fix the front fork tube joint part to the front fork tube.

3. The shock absorbing device for a bicycle front fork tube according to claim 2, characterized in that: The inner diameter of the front fork tube joint is greater than the inner diameter of the damping unit joint. The outer surface of the body is provided with a flange extending radially outward, and the flange at least partially covers the front fork tube joint.

4. The shock absorbing device for a bicycle front fork tube according to claim 1, characterized in that: The damping unit joint portion is provided with a first through hole, and the main body is provided with a second through hole corresponding to the first through hole. After the main body is combined with the damping unit joint portion, a latch is inserted through the first through hole and the second through hole to combine the damping unit and the connecting unit.

5. The shock absorbing device for a bicycle front fork tube according to claim 4, characterized in that: The latch is provided with a screw hole, and the top end of the connection unit is provided with an upper cover, and the upper cover is screwed in the screw hole through a bolt to fix the upper cover to one end of the damping unit joint.

6. The shock absorbing device for a bicycle front fork tube according to claim 4, characterized in that: The latch comprises a fixing bolt and a combining piece, one end of the fixing bolt is combined with the combining piece, and the combining piece is pressed against the outside of the body.

7. The shock absorbing device for a bicycle front fork tube according to claim 4, characterized in that: The latch includes a fixing bolt and a combining piece, wherein the fixing bolt is combined with the combining piece, the fixing bolt has a first tool end, and the combining piece has a second tool end, and the first tool end and the second tool end are arranged on the handle vertical tube.

8. The shock absorbing device for a bicycle front fork tube according to claim 1, characterized in that: The damping unit and the connecting unit are made of different materials.

9. The shock absorbing device for a bicycle front fork tube according to claim 8, characterized in that: The material of one of the damping unit or the connecting unit is non-metal.

10. The shock absorbing device for a bicycle front fork tube according to claim 8, characterized in that: The damping unit and the connecting unit have different elastic coefficients, and the elastic coefficient of the damping unit is greater than the elastic coefficient of the connecting unit.

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