TW202321094A - Bicycle handle assembly - Google Patents

Abstract

A bicycle handle assembly includes a handlebar, a hydraulic pressure generator, and a first oil pipe. The handlebar has an accommodation space and an opening connected to the accommodation space and located at an end of the handlebar in the axial direction of the handlebar. The hydraulic pressure generator is disposed on the handlebar and located outside the accommodation space. The first oil pipe includes a first part, a second part, and a bent part. The first part is located outside the accommodation space of the handlebar and connected to the hydraulic pressure generator. The second part is located in the accommodation space of the handlebar. One end of the bent part is connected to the first part, and anther end of the bent part is connected to the second part at the opening of the handlebar.

Description

bicycle handle assembly

The present invention relates to a handle assembly, in particular to a bicycle handle assembly.

In recent years, the bicycle market has been booming. Whether it is a high-end racing bicycle or a popular bicycle used as a means of transportation and entertainment, it is loved by consumers, prompting manufacturers to pay more attention to the user's demand for bicycle functions. Car body materials, equipment and functions are continuously improved.

Generally speaking, most of the bicycles currently on the market use hydraulic brakes. Among them, the oil pipe connects the brake handle and brake caliper of the bicycle, and the oil pressure generated by the rider pressing the brake handle can be transmitted to the brake caliper through the oil pipe, so that the brake caliper clamps the brake disc that moves with the wheel to brake. However, at present, the oil pipe connecting the brake handle and the brake caliper is exposed as a whole, and in addition to the overall exposed oil pipe, the cable connecting the shift lever and the transmission of the bicycle is also exposed, so it is inevitable from the appearance of the bicycle. There will be a feeling of clutter on the bicycle line. Therefore, manufacturers of bicycles are currently working on solving the aforementioned problems.

The present invention is to provide a bicycle handle assembly to solve the problem of cluttered bicycle lines in the prior art.

A bicycle handlebar assembly disclosed in an embodiment of the present invention includes a handlebar, a hydraulic pressure generating device and a first oil pipe. The handlebar has an accommodating space and a port connected to the accommodating space and located on the axial direction of the handlebar. The hydraulic pressure generating device is arranged on the handlebar and outside the accommodation space. The first oil pipe includes a first extension section, a second extension section and a bending section. The first extension section is located outside the accommodating space of the handlebar and connected to the hydraulic pressure generating device, the second extension section is located in the accommodating space of the handlebar, and the opposite ends of the bending section are respectively connected to the first extension section and the second extension section section, and the connection between the bent section and the second extension section is located at the axial port of the handlebar.

According to the bicycle handle assembly disclosed in the above embodiment, the first extension of the first oil pipe is located outside the accommodating space of the handlebar and connected to the hydraulic pressure generating device, and the second extension is located in the accommodating space of the handlebar. The two opposite ends of the folding section are respectively connected to the first extension section and the second extension section, so that the part of the first oil pipe connected to the hydraulic pressure generating device can be hidden and not exposed, thus reducing the disorder of the bicycle route.

The above description of the content of the present invention and the following description of the implementation are used to demonstrate and explain the principle of the present invention, and provide further explanation of the patent application scope of the present invention.

Please refer to Figures 1 to 5. FIG. 1 is a three-dimensional schematic diagram of a bicycle handlebar assembly disclosed according to a first embodiment of the present invention. FIG. 2 is an exploded schematic diagram of FIG. 1 . FIG. 3 is a schematic cross-sectional view of FIG. 1 . FIG. 4 is a partially enlarged schematic cross-sectional view of FIG. 3 . FIG. 5 is a schematic cross-sectional view from another viewing angle of FIG. 1 .

In this embodiment, the bicycle handle assembly 1 is used to connect with a hydraulic actuator, such as a brake caliper (not shown). The bicycle handlebar assembly 1 includes a handlebar 10 , a hydraulic pressure generating device 20 and a first oil pipe 30 . In this embodiment or other embodiments, the bicycle handlebar assembly 1 may further include an inner bush 40 , an outer bush 50 , a beam ring 60 and an end cap 70 .

The handlebar 10 has an accommodating space 11 , an inner wall 12 , a port 13 and an end 14 . The inner wall surface 12 forms the accommodation space 11 , and the port 13 is located at one axial end of the handlebar 10 and communicates with the accommodation space 11 , and the end surface 14 surrounds the port 13 .

The hydraulic pressure generating device 20 is, for example, a brake lever. The hydraulic pressure generating device 20 includes a main body 21 , a fastening member 22 and two bolts 23 . The main body 21 includes a cylinder 211 , a brake rod 212 , a piston 213 , a connecting rod 214 and an elastic member 215 . The brake rod 212 is pivotally disposed on the cylinder body 211 . The cylinder body 211 has a hydraulic chamber 2111 and an oil outlet hole 2112 connected thereto. Piston 213 is movably located in hydraulic chamber 2111 . The connecting rod 214 passes through the cylinder body 211 , and opposite ends of the connecting rod 214 are respectively connected to the brake rod 212 and the piston 213 . The oil outlet hole 2112 of the cylinder body 211 is located on a side of the piston 213 away from the connecting rod 214 . Pressing the brake lever 212 can drive the piston 213 to move toward the oil outlet hole 2112 through the connecting rod 214 . The elastic member 215 is located in the hydraulic chamber 2111 of the cylinder body 211 , and two opposite ends of the elastic member 215 abut against the piston 213 and the groove bottom surface 2113 of the hydraulic chamber 2111 relative to the connecting rod 214 respectively. The elastic member 215 is used to apply force to the piston 213 in a direction away from the oil outlet hole 2112 .

In this embodiment, the cylinder body 211 has two screw holes 2114 , and the tightening member 22 has two through holes 221 . The two bolts 23 respectively pass through the two through holes 221 of the tightening member 22 and are locked to the two screw holes 2114 of the cylinder body 211, so that the cylinder body 211 and the tightening member 22 clamp the handlebar 10 together, and the hydraulic pressure generating device 20 Installed on the handlebar 10 of the driver.

In this embodiment, the first oil pipe 30 includes a first extension section 31 , a second extension section 32 and a bending section 33 . The first extension section 31 is located outside the accommodating space 11 of the handlebar 10 and connected to the hydraulic pressure generating device 20 . In detail, the cylinder body 211 can also have an assembly hole 2115 , the assembly hole 2115 is connected to the oil outlet hole 2112 , and the bicycle handle assembly 1 can also include a joint 80 . The joint 80 is sleeved on one end of the first extension section 31 of the first oil pipe 30, and the joint 80 is installed in the assembly hole 2115 of the cylinder body 211 by screwing, for example, so that the first extension section 31 of the first oil pipe 30 is connected in the cylinder body 211.

The second extension section 32 of the first oil pipe 30 is located in the accommodating space 11 of the handlebar 10, the bent section 33 is located outside the accommodating space 11 of the handlebar 10, and the opposite ends of the bent section 33 are respectively connected to the first The other end of the extension section 31 and one end of the second extension section 32 , and the connection between the bending section 33 and the second extension section 32 are located at the port 13 of the handlebar 10 .

In this embodiment, the first extension section 31 , the second extension section 32 and the bending section 33 of the first oil pipe 30 are integrally connected, but the present invention is not limited thereto. In other embodiments, the first extension section, the second extension section, and the bent section of the first oil pipe may be connected through assembly.

In this embodiment, since the first extension section 31 of the first oil pipe 30 is located outside the accommodation space 11 of the handlebar 10 and is connected to the hydraulic pressure generating device 20 , the second extension section 32 is located in the accommodation space 11 of the handlebar 10 Inside, the opposite two ends of the bent section 33 are respectively connected to the setting of the first extension section 31 and the second extension section 32, so that the part of the first oil pipe 30 connected with the hydraulic pressure generating device 20 can be hidden and not exposed, so reducing the The level of clutter on the bike lines.

In this embodiment, the bicycle handle assembly 1 may further include three other joints 90 , 100 , 110 and a second oil pipe 120 , wherein the joints 90 , 100 are male joints, and the joint 110 is a female joint. The two joints 90 and 100 are sleeved on the end of the second extension section 32 of the first oil pipe 30 away from the bent section 33 and the end of the second oil pipe 120 respectively. The joint 110 is located in the accommodating space 11 of the handlebar 10 , and the joint 110 has a first attachment portion 1101 , a second attachment portion 1102 , a connecting channel 1103 and a stopper portion 1104 . The connection channel 1103 runs through the first attachment portion 1101 and the second attachment portion 1102 , and the stop portion 1104 protrudes from the inner wall surface 1105 of the joint 110 forming the connection channel 1102 . The connecting channel 1103 has a first assembly section 1103a, a second assembly section 1103b and a communication section 1103c connected thereto. The first assembly section 1103a and the second assembly section 1103b are respectively located on different sides of the communication section 1103c. The first attachment portion 1101 , the second attachment portion 1102 and the stopper portion 1104 respectively form a first assembly section 1103 a , a second assembly section 1103 b and a communication section 1103 c. Both the smallest inner diameter D1 of the first assembly section 1103a and the smallest inner diameter D2 of the second assembly section 1103b are greater than the inner diameter D3 of the communication channel 1103c.

The joint 90 has a thread structure 91 , the joint 100 also has a thread structure 1001 , and the joint 110 also has two thread structures 1106 , 1107 located in the first assembly section 1103 a and the second assembly section 1103 b respectively. The threaded structure 91 of the joint 90 and the threaded structure 1001 of the joint 100 are respectively screwed into the two threaded structures 1106, 1107 of the joint 110, so that the second extension section 32 of the first oil pipe 30 and the second oil pipe 120 are respectively located in the first assembly section 1103a and the second assembly section 1103b, and respectively abut against different sides of the stopper portion 1104 . In this way, the second extension section 32 of the first oil pipe 30 and the second oil pipe 120 are connected through the joints 90 , 100 , 110 in the accommodation space 11 of the handlebar 10 .

It should be noted that the joints 90 , 100 , 110 are not limited to being assembled with each other through threaded structures. In other embodiments, the connectors 90 , 100 , 110 can be assembled with each other in other suitable ways, such as fastening.

In this embodiment, the outer diameter R1 of the first oil pipe 30 is, for example but not limited to, smaller than the outer diameter R2 of the second oil pipe 120 . The first oil pipe 30 has a fluid channel 34 , and different parts of the fluid channel 34 are respectively located in the first extension section 31 , the second extension section 32 and the bending section 33 . The second oil pipe 120 also has a fluid channel 1201 . The hydraulic chamber 2111 of the cylinder 211 communicates with the fluid passage 34 of the first oil pipe 30 through the oil outlet hole 2112, and the fluid passage 34 of the first oil pipe 30 communicates with the fluid passage 1201 of the second oil pipe 120 through the connecting section 1103c of the joint 110, Moreover, the fluid channel 1201 of the second oil pipe 120 is connected to a brake caliper, for example. Pressing the brake lever 212 can drive the piston 213 to move toward the oil outlet hole 2112 through the connecting rod 214, and apply pressure to the hydraulic oil in the hydraulic chamber 2111, and the pressure will pass through the hydraulic chamber 2111 of the cylinder 211 and the oil outlet hole 2112 , the hydraulic oil in the fluid channel 34 of the first oil pipe 30 , the connection hole 1101 of the joint 110 and the fluid channel 1201 of the second oil pipe 120 is delivered to the brake caliper, and the brake caliper is actuated for braking.

It should be noted that the bicycle handle assembly 1 is not limited to include the joints 100 , 110 and the second oil pipe 120 . In other embodiments, the bicycle handle assembly can omit the joints 100 , 110 and the second oil pipe 120 , and the second extension of the first oil pipe can be directly connected to the brake caliper.

The inner bushing 40 is made of metal, for example. The inner sleeve 40 is sheathed on the handlebar 10 , and the inner sleeve 40 includes a main body 41 and a first extension 42 . The main body 41 has a relief slot 411 . The first extension section 31 of the first oil pipe 30 is located in the relief groove 411 of the main body 41 and is positioned by the main body 41 . The first extensions 42 are connected to one end of the main body 41 and extend along the axial direction of the main body 41 , and the first extensions 42 are separated from each other. The first extensions 42 are sandwiched between the handlebar 10 and the cylinder 211 .

The outer bushing 50 is made of rubber, for example, and the hardness of the inner bushing 40 is greater than that of the outer bushing 50 . The outer bushing 50 is sleeved on the handlebar 10, so that the main body 41 of the inner bushing 40 is located between the handlebar 10 and the outer bushing 50, and the first extension section 31 of the first oil pipe 30 is located in the outer bushing. 50 and the handlebar 10 are shielded by the outer bushing 50. Thereby, the concealment of the first oil pipe 30 can be improved, thus further reducing the degree of clutter of the bicycle route.

The inner sleeve 40 can further include a second extension 43 . The second extensions 43 are connected to the other end of the main body 41 and extend along the axial direction of the main body 41 , and the second extensions 43 are separated from each other. These second extensions 43 are located outside the outer bushing 50 . The clamp ring 60 includes a ring body 61 and a tightening screw 62 . The annular body 61 is, for example, a C-shaped structure. The ring body 61 has an inner wall surface 611 , a relief groove 612 , an opening 613 and two end portions 614 , 615 . The relief groove 612 is recessed from the inner wall 611 , and the two ends 614 , 615 are respectively located on two opposite sides of the opening 613 . The end portion 614 has a through hole 6141 , and the end portion 615 has a screw hole 6151 . The ring body 61 is sleeved on the handlebar 10, so that the first extension section 31 of the other part of the first oil pipe 30 is located in the relief groove 612 and is shielded by the ring body 61, and the second extension portions of the inner bushing 40 43 is located between the inner wall surface 611 of the annular body 61 and the handlebar 10 . The tightening screw 62 passes through the perforation 6141 and the opening 613 of the end 614 of the annular body 61, and is locked on the screw hole 6151 of the end 615, so that the inner wall surface 611 of the annular body 61 is pressed against the second holes of the inner bushing 40. The extension portions 43 are sandwiched between the inner wall surface 611 of the annular body 61 and the handlebar 10 .

In this embodiment, the first extending section 31 of the other part of the first oil pipe 30 is shielded by the annular body 61 , so that the concealment of the first oil pipe 30 can be further improved, thus further reducing the clutter of the bicycle route.

In addition, the first extensions 42 of the inner bush 40 are sandwiched between the handlebar 10 and the cylinder 211, and the second extensions 43 of the inner bush 40 are sandwiched between the ring body 611 and the driver. Between the handlebars 10, the inner bushing 40 can be firmly fixed on the handlebars 10. Thereby, even if the user inadvertently twists the outer bushing 50, the outer bushing 50 will not drive the integral inner bushing 40 to rotate relative to the handlebar 10, but can ensure that the first oil pipe located in the relief groove 411 of the inner bushing 40 30 will not be pulled by the inner bush 40 due to the rotation of the inner bush 40 , so as to avoid rupture at the joint between the first extension section 31 of the first oil pipe 30 and the cylinder body 211 .

On the other hand, since the hardness of the inner bush 40 is greater than that of the outer bush 50, even if the user inadvertently twists the outer bush 50, the outer bush 50 will not force the main body 41 of the inner bush 40 relative to the second. The twisting of the first extension part 42 and the second extension part 43 can further ensure that the first oil pipe 30 located in the relief groove 411 of the inner bushing 40 will not be twisted by the inner bushing 40 due to the twisting of the main body part 41 of the inner bushing 40 Pulling to avoid rupture at the connection between the first extension section 31 of the first oil pipe 30 and the cylinder body 211 .

It should be noted that the structure of the inner sleeve 40 is not intended to limit the present invention. In other embodiments, the inner bushing may not have the second extension portion, and the bicycle handle assembly may not have a tie ring, and the inner bushing may only rely on the tightening part of the hydraulic pressure generating device to press against the handlebar, so that the handlebar and the main body are in common The first extension part of the inner liner is clamped to be fixed on the handlebar. Alternatively, the inner sleeve may not have the first extension portion, and the inner sleeve may be fixed to the handlebar only by forcing the second extension portion of the inner sleeve to press against the handlebar by the tie ring. In another embodiment, the inner sleeve may not have the first extension portion and the second extension portion, and the main body portion of the inner sleeve may be directly sandwiched between the main body portion of the hydraulic pressure generating device and the handlebar, as well as the tightening member and the handlebar. Between the handlebars, or the inner bushing can be fixed to the handlebars by other suitable means (such as screws or glue).

In addition, the outer sleeve 50 is not limited to be detachably sleeved on the inner sleeve 40 . In other embodiments, the outer bushing can be made of plastic or rubber, and is covered and fixed on the outer periphery of the inner bushing by plastic overmolding. In this way, the outer bushing and the inner bushing can be assembled together on the handlebar. Alternatively, in another embodiment, the inner bush and the outer bush can be integrally formed of the same material. On the other hand, the bicycle handlebar assembly 1 is not limited to include the inner sleeve 40 . In other embodiments, the bicycle handle assembly can omit the inner sleeve, and the outer sleeve can be adjusted to a material with relatively high hardness and not easily twisted.

The end cover 70 includes a connected cover portion 71 and an insertion portion 72 , and the insertion portion 72 includes a cylinder 721 and a plurality of flexible pieces 722 . The cylinder 721 is connected to the cover 71 , and the cylinder 721 has an outer surface 7211 in the radial direction. The flexible pieces 722 are connected to the outer surface 7211 of the cylinder 721 , and the flexible pieces 722 are separated from each other in the axial direction of the cylinder 721 . The cover portion 71 abuts against the end face 14 of the handlebar 10, the cylinder 721 of the insertion portion 72 is inserted into the accommodating space 11 from the port 13 of the handlebar 10, and the flexible pieces 722 of the insertion portion 72 abut against The inner wall surface 12 of the handlebar 10 makes the end cover 70 fixed on one end of the handlebar 10 .

In this embodiment, the cover portion 71 of the end cap 70 has a first relief groove 711 , and the column 721 of the insertion portion 72 has a second relief groove 7212 formed by recessing from the outer surface 7211 . The first relief groove 711 communicates with the second relief groove 7212, the first relief groove 711 accommodates the bent section 33 of the first oil pipe 30, and the second relief groove 7212 accommodates the end of the first oil pipe 30. Part of the second extension 32 . The depth D of the first relief groove 711 is greater than the outer diameter R1 of the bent section 33 of the first oil pipe 30 . The bent section 33 of the first oil pipe 30 is located between the end surface 14 of the handlebar 10 and the groove bottom surface 7111 of the first relief groove 711 of the cover portion 71, and the groove bottom surface 7111 of the first relief groove 711 is against the first groove bottom surface 7111. A bent section 33 of an oil pipe 30 .

In this embodiment, the end cover 70 is assembled on one end of the handlebar 10, and the first relief groove 711 of the cover portion 71 of the end cover 70 accommodates the design of the bending section 33 of the first oil pipe 30, allowing The port 13 of the handlebar 10 and the bent section 33 of the first fuel pipe 30 are covered by the end cover 70 . In this way, the concealment of the first oil pipe 30 can be improved, and the degree of clutter of the bicycle route can be further reduced.

On the other hand, since the depth D of the first relief groove 711 is greater than the outer diameter R1 of the bent section 33 of the first oil pipe 30, the cover portion 71 of the end cover 70 abuts against the end surface 14 of the handlebar 10, and When the groove bottom surface 7111 of the first relief groove 711 abuts against the bent section 33 of the first oil pipe 30 , the bent section 33 of the first oil pipe 30 is still separated from the end surface 14 of the handlebar 10 by a certain distance. In this way, the bent section 33 of the first oil pipe 30 will not touch the end edge of the handlebar 10 , and it can be ensured that the bent section 33 of the first oil pipe 30 will not be cut by the end edge of the handlebar 10 .

It should be noted that the bicycle handlebar assembly is not limited to include end caps. In other embodiments, the bicycle handlebar assembly may omit the end cap. In such a configuration, in addition to the annular wall, the outer liner may further include an end plate connected to one end of the annular wall. In this way, after the outer bush is sleeved on the handlebar, the outer bush can cover the first extension section and the bent section of the first oil pipe and the port of the handlebar. Additionally, in another embodiment, the bicycle handlebar assembly may omit the outer bushing.

According to the bicycle handle assembly disclosed in the above embodiment, the first extension of the first oil pipe is located outside the accommodating space of the handlebar and connected to the hydraulic pressure generating device, and the second extension is located in the accommodating space of the handlebar. The two opposite ends of the folding section are respectively connected to the first extension section and the second extension section, so that the part of the first oil pipe connected to the hydraulic pressure generating device can be hidden and not exposed, thus reducing the disorder of the bicycle route.

In addition, through the arrangement of the outer bushing, the tie ring and the end cap, the first extension section and the bending section of the first oil pipe can be covered, so the concealment of the first oil pipe can be improved, and the degree of disorder of the bicycle line can be further reduced .

Although the present invention is disclosed above with the aforementioned preferred embodiments, it is not intended to limit the present invention. Any person familiar with the similar art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of patent protection for inventions shall be defined in the scope of patent application attached to this specification.

1: Bicycle handle assembly 10: Handlebar 11:Accommodating space 12: Inner wall surface 13: port 14: End face 20: Hydraulic pressure generating device 21: Subject 211: Cylinder 2111: hydraulic chamber 2112: oil outlet 2113: Groove bottom 2115: assembly hole 2114: screw hole 212: brake lever 213: piston 214: connecting rod 215: Elastic parts 22: Tightening parts 221: perforation 23: Bolt 30: The first tubing 31: The first extension 32: Second extension 33: Bending section 34: Fluid channel 40: inner bushing 41: Main body 411: Give way slot 42: first extension 43: Second extension 50: outer bushing 60: beam ring 61: ring body 611: Inner wall surface 612: Give way groove 613: opening 614,615: end 6141: perforation 6151: screw hole 62: Compression screw 70: end cap 71: cover 711: First give way groove 7111: Groove bottom 72: Insertion Department 721: cylinder 7211: outer surface 7212: Second give way groove 722: flexible sheet 80,90,100,110: Connector 91,1001: threaded structure 1101: the first attachment part 1102: second attachment part 1103: connect channel 1103a: The first assembly section 1103b: the second assembly segment 1103c: connected segment 1104: stopper 1105: Inner wall surface 1106, 1107: thread structure 1101: connection hole 120: The second oil pipe 1201: fluid channel D: Depth D1, D2, D3: inner diameter R1, R2: outer diameter

FIG. 1 is a three-dimensional schematic diagram of a bicycle handlebar assembly disclosed according to a first embodiment of the present invention. FIG. 2 is an exploded schematic diagram of FIG. 1 . FIG. 3 is a schematic cross-sectional view of FIG. 1 . FIG. 4 is a partially enlarged schematic cross-sectional view of FIG. 3 . FIG. 5 is a schematic cross-sectional view from another viewing angle of FIG. 1 .

10: Handlebar

11:Accommodating space

12: Inner wall surface

20: Hydraulic pressure generating device

21: Subject

211: Cylinder

2111: hydraulic chamber

2112: oil outlet

2113: Groove bottom

2115: assembly hole

212: brake lever

213: piston

214: connecting rod

215: Elastic parts

22: Tightening parts

31: The first extension

32: Second extension

33: Bending section

50: outer bushing

61: ring body

62: Compression screw

70: end cap

71: cover

72: Insertion Department

80,90,100,110: Connector

120: The second oil pipe

Claims (16)

A bicycle handle assembly, comprising: a handlebar, having an accommodating space and a port connected to the accommodating space and located in the axial direction of the handlebar; a hydraulic pressure generating device, arranged on the handlebar and located in the accommodating outside the space; and a first oil pipe including a first extension section, a second extension section and a bending section, the first extension section is located outside the accommodating space of the handlebar and connected to the hydraulic pressure generating device, The second extension section is located in the accommodating space of the handlebar, the opposite two ends of the bending section are respectively connected to the first extension section and the second extension section, and the bending section and the second extension section The connection is located at the port on the shaft of the handlebar. The bicycle handlebar assembly as described in claim 1, further comprising an end cover, the handlebar has an end surface, the end surface surrounds the port, the end cover comprises a connected cover part and an insertion part, and the cover part abuts against The end face of the handlebar, the insertion part is inserted into the accommodation space from the port of the handlebar, the cover part has a first relief groove, and the insertion part has a second relief groove , the first relief groove communicates with the second relief groove, the first relief groove accommodates the bent section, and the second relief groove accommodates the second extension portion of the portion. The bicycle handle assembly according to claim 2, wherein the depth of the first relief groove of the cover is greater than the outer diameter of the bent section of the first oil pipe, and the bent section of the first oil pipe is located at the Between the end surface of the handlebar and a groove bottom surface of the first relief groove of the cover portion, the groove bottom surface of the first relief groove abuts against the bent section of the first oil pipe. The bicycle handle assembly as described in claim 2, wherein the insertion part includes a cylinder and a plurality of flexible pieces, the cylinder is connected to the cover, the cylinder has an outer surface in the radial direction, and the second The relief groove is recessed from the outer surface, the flexible pieces are connected to the outer surface of the cylinder and separated from each other in the axial direction of the cylinder, and the flexible pieces are formed against the handlebar An inner wall surface of the accommodating space. The bicycle handlebar assembly as described in Claim 1, further comprising an outer bushing, the outer bushing is sleeved on the handlebar, and the first extension section of the first oil pipe is located between the outer bushing and the handlebar . The bicycle handlebar assembly as described in Claim 5 further comprises an inner bushing, the inner bushing is sleeved on the handlebar and is located between the outer bushing and the handlebar, and the hardness of the inner bushing is greater than that of the outer bushing The hardness of the sleeve, the inner sleeve has a relief groove, and the first extension section of the first oil pipe is located in the relief groove. The bicycle handlebar assembly as claimed in claim 6, wherein the inner sleeve includes a main body and at least one first extension, the main body is located between the outer sleeve and the handlebar, and the relief groove is located in the main body part, the at least one first extension part is connected to one end of the main body part and extends along the axial direction of the main body part, the hydraulic pressure generating device includes a main body and a tightening part assembled together, and the handlebar is clamped on the between the main body and the tightening member, and the at least one first extension is sandwiched between the handlebar and the main body. The bicycle handlebar assembly as claimed in claim 7, further comprising a collar, the inner sleeve further comprising at least one second extension, the at least one second extension is connected to the other end of the main body and runs along the main body The axial extension of the at least one second extension is sandwiched between the handlebar and the collar. The bicycle handlebar assembly as claimed in claim 1, wherein the first extension section, the second extension section and the bending section of the first oil pipe are integrally connected. The bicycle handle assembly as described in claim 1 further includes a second oil pipe and a joint, the second oil pipe and the joint are located in the accommodation space of the handlebar, and the second oil pipe is connected to the The second extension of the first oil pipe. In the bicycle handle assembly as claimed in claim 10, the outer diameter of the second oil pipe is larger than the outer diameter of the first oil pipe. A bicycle handle assembly, comprising: a handlebar with an accommodating space; a hydraulic pressure generating device arranged on the handlebar and outside the accommodating space; a first oil pipe connected with the hydraulic pressure generating device, and the first Different parts of the oil pipe are respectively located inside and outside the accommodating space; a second oil pipe is located in the accommodating space, and the second oil pipe is connected to an oil pressure actuator; and a joint is located in the accommodating space and It has a first attachment part, a second attachment part and a connection channel, the connection channel runs through the first attachment part and the second attachment part, the first attachment part and the second attachment part are not attached to the first oil pipe and the second oil pipe, and the first oil pipe and the second oil pipe communicate through the connecting channel. The bicycle handlebar assembly according to claim 12, wherein the joint has a stopper, the stopper protrudes from the inner wall surface of the joint forming the connecting passage, and the first oil pipe and the second oil pipe respectively abut against the opposite side of the stop. The bicycle handle assembly as described in claim 13, wherein the connecting passage has a first assembly section, a second assembly section and a communication section connected, and the first assembly section and the second assembly section are located in the communication section respectively. different sides of the segment, the first attachment portion, the second attachment portion and the stopper portion respectively form the first assembly segment, the second assembly segment and the communication segment, the minimum inner portion of the first assembly segment Both the diameter and the minimum inner diameter of the second assembly section are larger than the inner diameter of the connecting passage, and the first oil pipe and the second oil pipe are respectively located in the first assembly section and the second assembly section. The bicycle handlebar assembly as claimed in claim 12, wherein the outer diameter of the first oil pipe is smaller than the outer diameter of the second oil pipe. The bicycle handlebar assembly according to claim 12, wherein the first attachment portion and the second attachment portion are respectively attached to the first oil pipe and the second oil pipe through a thread structure.

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