CN211139552U - Hydraulic control structure - Google Patents

Abstract

The utility model discloses a hydraulic control structure, include: the brake device comprises a body, a brake oil pipe, a hydraulic cylinder, a brake oil pipe and a hydraulic oil tank, wherein the body is provided with the hydraulic cylinder and a liquid storage tank; the piston is arranged in the hydraulic cylinder and moves between the first end and the second end along a central axis of the hydraulic cylinder so as to output the liquid in the hydraulic cylinder from the output port; a first channel and a second channel are arranged between the hydraulic cylinder and the liquid storage tank, the first channel is provided with a first axis, and the second channel is provided with a second axis; when observing along a central axis of the piston, an included angle is formed between the first axis and the second axis, so that the bubbles generated by high temperature of brake oil in the brake oil pipe can flow back to the first channel and the second channel and are gathered in the liquid storage tank, and the danger of brake failure caused by the bubbles contained in the hydraulic cylinder when the piston is pushed and pressed by pressing the brake handle is avoided.

Description

Hydraulic control structure

Technical Field

The utility model relates to a bicycle hydraulic brake structure, in particular to can help the bubble that the brake fluid in the pneumatic cylinder contains to lead into the reservoir to can be discharged by first/second passageway, when avoiding pressing the brake handle, because of containing the bubble in the pneumatic cylinder and leading to the fact the malfunctioning hydraulic control structure of brake.

Background

The known taiwan bulletin No. M336909 hydraulic brake handle structure of bicycle comprises: the brake body is internally provided with a containing space and an oil pressure chamber, the containing space and the oil pressure chamber are mutually vertical, the inner end of the containing space is provided with an actuating oil path and a vertical lubricating oil path and communicated with the oil pressure chamber, the containing space is provided with oil inlet holes and oil inlet bolts at two sides of the brake body, the oil pressure chamber penetrates through the brake body, one end of the oil pressure chamber is connected with an oil delivery hole of an oil pipe, the other end of the oil pressure chamber is provided with a handle pivot seat at the outer side of the oil pressure chamber, a soft pressure regulating sleeve is sleeved at the opening end of the oil pressure chamber to form a positioning surface, a fixing part is arranged at the upper end of the positioning surface, the center of the fixing part is provided with a pressure regulating hole, a semicircular locking part is screwed on the containing space far away from the upper part of the oil pressure chamber, an oil pressure device comprises an actuating cylinder, an oil seal, a seal ring, an elastic part and a push, the front end is connected with an elastic element such as a spring, the rear end of the actuating cylinder is provided with a groove and a push rod, one end of the brake handle is provided with a handle pivot hole and a movable element hole, the movable element hole can be sleeved with a movable element, and the front edge of the handle pivot hole is provided with a fine adjustment hole and is provided with a fine adjustment element.

The pressure regulating sleeve can be placed in the containing space of the brake body, the positioning surface of the pressure regulating sleeve is upward, and is placed on the containing space by means of fixing component cover, the positioning surface and fixing component are fixed on the brake body by means of bolt, the oil pressure device is placed into the oil pressure chamber by means of elastic component end, the brake handle is pivoted with handle pivot seat of the brake body by means of handle pivot hole, so that the brake handle can be turned, the push rod of the oil pressure device is screwed in the moving component, so that the brake handle can be coupled with push rod, and the locking component is locked outside the containing space of the brake body by means of bolt, and a positioning space of the brake handle is formed between the brake body and locking component. When the bicycle is braked, the brake handle is pulled to make the moving part push the push rod, the normally open actuating oil path is kept closed by the displacement of the actuating cylinder, so that the brake oil in the oil pipe is extruded, the oil pressure is raised, and the brake effect is achieved. When the brake handle is released, the oil pressure in the pipe and the rebound tension of the elastic piece make the actuating cylinder back, and when the oil pressure chamber is communicated with the actuating oil path, the oil pressure is quickly released through the actuating oil path.

The inner side of the pressure regulating sleeve is communicated with the pressure regulating hole and is an atmospheric pressure end, and a pipeline pressure end is arranged between the accommodating space and the pressure regulating sleeve. When the brake oil is contracted, enough oil pressure is supplemented by the pressure regulating sleeve end, so that the effect of balancing the pipeline pressure is achieved.

However, since the brake fluid pipe is close to one end of the brake disc, the brake fluid in the brake fluid pipe contains air bubbles due to high temperature generated by braking, and the air bubbles are gathered in the direction of the hydraulic chamber due to lighter weight than the brake fluid, so that the situation that the braking action is not enough when the brake handle is pulled to drive the brake occurs.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a can help getting rid of brake fluid intraductal brake fluid and cause the brake fluid in the piston pushes the pneumatic cylinder because of containing the bubble in the pneumatic cylinder is returned to the pneumatic cylinder because of the bubble that high temperature produced, causes the malfunctioning problem of brake.

To achieve the above object, the present invention discloses a hydraulic control structure, assembled on a handlebar of a bicycle, comprising:

the device comprises a body, a first liquid storage tank, a second liquid storage tank, a first liquid storage tank and a second liquid storage tank, wherein the hydraulic cylinder is provided with a first end and a second end, and the second end is provided with an output port;

the piston is arranged in the hydraulic cylinder and moves between the first end and the second end along a central axis of the hydraulic cylinder so as to output the liquid in the hydraulic cylinder from the output port; a first channel and a second channel are arranged between the hydraulic cylinder and the liquid storage tank, the first channel is provided with a first axis, and the second channel is provided with a second axis; when viewed along a central axis of the piston, the first axis and the second axis form an included angle.

Wherein the included angle is less than 180 degrees and more than or equal to 5 degrees.

Wherein the included angle is less than 150 degrees and more than or equal to 15 degrees.

Wherein the included angle is less than 120 degrees and more than or equal to 20 degrees.

Wherein the included angle is smaller than 90 degrees and larger than or equal to 22 degrees.

The hydraulic cylinder is provided with a first balance channel, and the first balance channel is adjacent to the first end position of the first channel close to the hydraulic cylinder.

The hydraulic cylinder is provided with a second balance channel, and the second balance channel is adjacent to the position, close to the first end of the hydraulic cylinder, of the second channel.

Wherein the aperture of the opening of the first equalizing channel in the cylinder wall is larger than the opening of the first channel in the cylinder wall.

Wherein the opening aperture of the second balancing channel in the cylinder wall is larger than the opening of the second channel in the cylinder wall.

Wherein, the first channel has a first opening far away from the hydraulic cylinder, and the first opening is sealed by a first screw; the second channel is provided with a second opening in the direction away from the hydraulic cylinder, and the second opening is sealed by screwing a second screw.

Because the air bubbles are gathered on the brake fluid lighter than the brake fluid, when the brake fluid in the brake fluid pipe generates air bubbles due to high temperature, the air bubbles can flow back to the direction of the hydraulic cylinder.

Therefore, when the utility model discloses when installing at the right handlebar of bicycle, when observing along a the central axis of this piston, a contained angle has between this first axis and this second axis, this contained angle is less than 180 jiaos, and more than or equal to 5 jiaos, make the first passageway keep away from the first open-ended height of this pneumatic cylinder direction too high pneumatic cylinder, consequently can make the bubble in the pneumatic cylinder toward first passageway gathering and get into the reservoir in, when making the rider press the brake handle and carry out brake operation, can not have the malfunctioning dangerous problem of brake.

And work as the utility model discloses when installing at the left handlebar of bicycle, when observing along a the central axis of this piston, a contained angle has between this first axis and this second axis, the contained angle is less than 180 jiaos, and more than or equal to 5 jiaos, make the second passageway keep away from the second open-ended of this pneumatic cylinder direction highly be higher than the pneumatic cylinder, consequently can make the bubble in the pneumatic cylinder toward the gathering of second passageway and get into the reservoir in, so make when pressing down the brake handle and carrying the brake operation, can not have the malfunctioning problem of brake.

The utility model discloses can unscrew first, the second screw of first, second passageway, make the gathering in first, the second passageway and the bubble of reservoir release completely to get rid of the bubble in first, second passageway and the reservoir. In addition, because the utility model discloses hydraulic control structure mountable is on the left handlebar or the right handlebar of bicycle, consequently in the manufacturing, as long as use a pair mould, can save manufacturing cost greatly.

Drawings

Fig. 1 is a perspective view of the present invention assembled on the right handlebar of a bicycle;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is an exploded perspective view of the present invention;

FIG. 4A is a first cross-sectional view of the present invention mounted on the right handlebar of a bicycle;

FIG. 4B is a second cross-sectional view of the present invention mounted on the right handlebar of the bicycle;

FIG. 5A is a cross-sectional view of the present invention mounted on the right handlebar of a bicycle, viewed along a central axis of the piston;

fig. 5B is a transverse cross-sectional view of the body of the present invention;

FIG. 6 is a perspective view of the present invention assembled to a left handlebar of a bicycle;

fig. 7 is a cross-sectional view of the present invention mounted on the left handlebar of the bicycle and viewed with the piston inserted into a central axis.

Symbolic illustration in the drawings:

10 a body;

11 hydraulic cylinders; 111 a first end; 112 a second end; 113 output port;

12 liquid storage tank; 121 is opened;

13 connecting lugs; 131 assembly space; 132 a first aperture; 133 a second aperture;

14 a convex portion; 141 through holes;

15 a first channel; 151 a first opening; 152 a first screw; 153 opening;

16 a second channel; 161 a second opening; 162 a second screw; 163 opening;

17 a first balance channel;

18 a second balance channel;

20 a hydraulic assembly;

21 an elastic member;

22 a piston; 221 a first female ring; 222 a second female ring; 223 first oil seal; 224 a second oil seal; 225 a passive rod;

23. a sleeve; 231 an extension; 232 a storage space; 233 a first shaft hole; 234 second shaft bore; 235 a first convex ring; 236 a second male ring;

30 of a capsule;

31 a head portion; 311 a recessed edge;

40 brake handles;

41 a pivoting end; 411 a first side wall; 412 a second sidewall; 413 a connection face; 414 first perforation; 415 second perforations;

416 through holes; 417 accommodating space;

42 an actuation end;

50 a linkage mechanism;

51 a linkage piece; 511 a projection; 512 pressure receiving parts; 513 against the top; 514 a first screw hole; 515 screws; 516, pipe penetration; 517 a ring loop; 518 an elastic ring; 519 hook part;

52, positioning seats; 521 a flange; 522 a through hole; 523, a concave surface;

53 a pivot shaft; 531 concave neck;

54 braking the tip; 541 a pressing section; 542 grip the handle head;

55 positioning rods; 551 a second screw hole; 552 a bolt;

60, coating a sleeve;

61, braking holes;

62 sets of matching holes;

63 a coil;

64 screw heads;

65 mating blocks;

66 screws;

100a left handlebar;

100b right handlebar;

200 brake oil pipes;

a1 first axis;

a2 second axis;

c, central axis;

α.

Detailed Description

The present invention will now be described in detail by way of examples, which are provided for illustrative purposes only and are not to be construed as limiting the scope of the present invention.

Referring to fig. 1 to 3, 4A and 4B, the present invention discloses a hydraulic control structure installed on a left handlebar 100 a/a right handlebar 100B of a bicycle, which includes a body 10, a hydraulic assembly 20, a bag 30, a brake lever 40, a linkage mechanism 50 and a covering sleeve 60. The body 10 has a hydraulic cylinder 11, the hydraulic cylinder 11 has a first end 111 and a second end 112 opposite to the first end 111, the second end 112 has an output port 113, the output port 113 is connected to a brake pipe 200, the brake pipe 200 is connected to a brake (not shown) of the bicycle, and a piston 22 is disposed in the hydraulic cylinder 11 and moves between the first end 111 and the second end 112.

The inside of the body 10 is provided with a reservoir 12, the reservoir 12 is located at one side of the hydraulic cylinder 11 and is adjacent to the left handle 100 a/right handle 100b direction of the bicycle, the diameter of the reservoir 12 is larger than the diameter of the hydraulic cylinder 11, and an opening 121 is arranged opposite to the second end 112 direction of the hydraulic cylinder 11, the caliber of the opening 121 is larger than the diameter of the reservoir 12, the caliber of the first end 111 of the hydraulic cylinder 11 is larger than the aperture of the hydraulic cylinder 11, two connecting lugs 13 extend from two sides of the body 10 adjacent to the first end 111, a group of matching spaces 131 are arranged between the two connecting lugs 13, the two connecting lugs 13 are provided with a first hole 132 and a second hole 133 perpendicular to the direction of the hydraulic cylinder 11, the body 10 is provided with a convex portion 14 adjacent to the left handle 100 a/right handle 100b direction of the bicycle, and the convex portion 14 is provided with a.

Referring to fig. 5A and 5B, the body 10 has a first passage 15 and a second passage 16, the first passage 15 and the second passage 16 are used to communicate the hydraulic cylinder 11 and the reservoir 12, the first passage 15 has a first axis a1, the second passage 16 has a second axis a2, when the hydraulic cylinder 11 is mounted on the left/right handle of the bicycle, and when viewed from a central axis C of the piston 22, an included angle α is formed between the first axis a1 and the second axis a2, the included angle α is smaller than 180 ° and greater than or equal to 5 °, the included angle α is smaller than 150 ° and greater than or equal to 15 °, the included angle α is also smaller than 120 ° and greater than or equal to 20 °, in this embodiment, the included angle α is smaller than 90 ° and greater than or equal to 22 °.

The cylinder 11 is provided with a first balance passage 17, the first balance passage 17 is adjacent to the first passage 15 near the first end 111 of the cylinder 11, and the opening 171 of the first balance passage 17 in the wall of the cylinder 11 has a larger diameter than the opening 153 of the first passage 15 in the wall of the cylinder 11. The cylinder 11 is provided with a second balance passage 18, the second balance passage 18 being adjacent to the second passage 16 of the cylinder 11 near the first end 111, the opening 181 of the second balance passage 18 in the wall of the cylinder 11 being larger in diameter than the opening 163 of the second passage 16 in the wall of the cylinder 11. The first passage 15 has a first opening 151 in a direction away from the hydraulic cylinder 11, the first opening 151 is sealed by a first screw 152, the second passage 16 has a second opening 161 in a direction away from the hydraulic cylinder 11, and the second opening 161 is sealed by a second screw 162.

The hydraulic assembly 20 includes an elastic member 21 such as a spring and the piston 22, which are axially retractable, the elastic member 21 and the piston 22 are sequentially installed into the hydraulic cylinder 11 from the first end 111 of the hydraulic cylinder 11, the piston 22 is provided with a first concave ring 221 and a second concave ring 222 on the periphery thereof, the periphery of the first concave ring 221 adjacent to the elastic member 21 is sleeved with a first oil seal 223 with elasticity, the periphery of the second concave ring 222 away from the elastic member 21 is sleeved with a second oil seal 224 with elasticity, the outer end of the piston 22 away from the elastic member 21 is transversely provided with a passive rod 225, the passive rod 225 and the piston 22 are perpendicular to each other, the first end 111 of the hydraulic cylinder 11 is assembled with a circular sleeve 23, the sleeve 23 is sleeved on the periphery of the piston 22, the sleeve 23 is provided with a pair of sheet-shaped extending portions 231 exposed outside the first end 111, the two extending portions 231 are assembled in the assembly space 131 of the body 10, and a receiving space 232 is provided between the two extending portions, the extension 231 has a first axial hole 233 and a second axial hole 234 perpendicular to the direction of the sleeve 23, the outer wall of each extension 231 has a circular first protruding ring 235 and a circular second protruding ring 236, the first axial hole 233 and the second axial hole 234 respectively pass through the first protruding ring 235 and the second protruding ring 236, the pair of extensions 231 is assembled in the assembling space 141 of the body 10, and the first protruding ring 235 and the second protruding ring 236 are respectively inserted into the first hole 132 and the second hole 133 of the connecting lug 13 of the body 10.

The capsule 30 is mounted in the reservoir 12, one end of the capsule 30 is provided with a head 31, the peripheral wall of the head 31 is provided with a concave edge 311 which is vertical to the direction of the reservoir 12, and the head 31 of the capsule 30 is assembled in the opening 121 of the reservoir 12.

The brake handle 40 has a pivot end 41 pivotally connected to the body 10 and an actuating end 42 opposite to the pivot end 41, the pivot end 41 is assembled in the receiving space 232 between the two extending portions 231 of the sleeve 23, the cross section of the pivot end 41 is inverted-U-shaped, and has a first side wall 411, a second side wall 412 and a connecting surface 413 connecting the first and second side walls 411, 412, a first through hole 414 and a second through hole 415 are formed through the first and second side walls 411, 412, the connecting surface 413 is provided with a through hole 416, and a receiving space 417 is formed between the first and second side walls 411, 412.

The linkage mechanism 50 is driven by the brake lever 40 to push the piston 22 to move back and forth in the hydraulic cylinder 11, is arranged in the accommodating space 232 of the sleeve 23 and the accommodating space 417 of the brake lever 40, and comprises a linkage member 51, a positioning seat 52, a pivot 53, a brake tip 54 and a positioning rod 55, wherein the linkage member 51 has two ends in different directions, one end of the projection 511 is wedge-shaped, the other end of the projection 511 is fork-shaped and has a pressure part 512 and a top part 513, the projection 511 is located between the outer wall of the body 10 and the connecting surface 413 of the brake lever 40, the top part 513 presses the passive rod 225 outside the piston 22, when the actuating end 42 of the brake lever 40 is pressed against the left handlebar 100 a/the right handlebar 100b of the bicycle handlebar, the top part 513 can push the passive rod 225 of the piston 22 to move towards the first end 111 of the hydraulic cylinder 11, so as to pressurize the brake oil in the hydraulic cylinder 11, a first screw hole 514 is arranged between the pressure part 512 and the abutting part 513, a screw 515 is screwed in the first screw hole 514, a circular through pipe 516 is arranged in the middle of the linkage part 51, two sides of the linkage part 51 are respectively provided with a ring 517, a circular elastic ring 518 is sleeved on the periphery of the ring 517, and an arc-shaped hook part 519 extends out of the elastic ring 518.

The positioning seat 52 is rectangular block-shaped and is installed in the accommodating space 417 of the brake handle 40, the positioning seat 52 is provided with a flange 521 which is matched with the through hole 416 of the brake handle 40, and a through hole 522 penetrates through the flange 521, the through hole 522 is opposite to the through hole 416 of the connecting surface 413 of the brake handle 40, the positioning seat 52 is provided with an arc-shaped inner concave surface 523 in the direction away from the connecting surface 413, two sides of the inner concave surface 523 are respectively provided with an arc-shaped groove (not shown), and the groove is used for the hook portion 519 of the elastic ring 518 to be inserted.

The pivot 53 has a circular rod-shaped middle portion at both ends thereof with a concave neck 531 smaller than the outer diameter of the pivot 53, the pivot 53 passes through the first axial hole 233 of one extension 231 of the sleeve 23, then passes through the first through hole 414 of the first sidewall 411 of the brake lever 40, passes through the ring 517 on one side of the linkage member 43, the through tube 516 of the linkage member 43 and the ring 517 on the other side of the linkage member 51, and then passes through the first axial hole 233 of the other extension 231 of the sleeve 23. The screw 515 is screwed behind the first screw hole 514 of the linking member 51, and the end thereof abuts against the concave neck 531 of the pivot 53 to prevent the pivot 53 from moving left and right.

The two sides of the brake pin 54 are round rods, the middle of the brake pin 54 is provided with a polygonal pressing section 541, one end of the brake pin 54 is provided with a holding head 542 in a triangular rhombus shape for holding a hand, the brake pin 54 is penetrated through the second hole 133 of one of the connecting lugs 13 of the body 10, the round rod on one side is penetrated through the second shaft hole 234 of one of the extending parts 231 of the sleeve 23, the round rod on the other side is penetrated through the second shaft hole 234 of the other extending part 231 of the sleeve 23, and the pressing section 541 of the brake pin 54 has at least one plane pressed on the outer wall of the abutting part 513 of the linkage part 51.

The positioning rod 55 is a circular rod, the middle of which is radially provided with a second screw hole 551, two sides of the positioning rod 55 are respectively penetrated through the second through holes 415 of the first and second side walls 411, 412 of the brake handle 40, the second screw hole 551 is used for a bolt 552 to penetrate through the through hole 416 of the connecting surface 413 of the brake handle 40, pass through the through hole 522 of the positioning seat 52 and then be screwed with the second screw hole 551 of the positioning rod 55, the tail end of the bolt 552 presses the pressure part 512 of the linkage member 51, so that the angle of the linkage member 43 can be finely adjusted by the adjusting bolt 552.

The covering sleeve 60 is U-shaped and has two opposite ends, the covering sleeve 60 is covered on the left handle bar 100 a/the right handle bar 100b of the bicycle in cooperation with the convex part 15 of the body 10, one end of the covering sleeve 60 is provided with a polygonal braking hole 61, the other end is provided with a group of matching holes 62, a screw tube 63 is provided with a screw head 64 larger than the outer diameter of the screw tube 63, a matching block 65 matched with the braking hole 61 in shape is arranged at the position adjacent to the screw head 64, the screw tube 63 penetrates through the braking hole 61, passes through the through hole 151 of the body 10 and the concave edge 311 of the head 31 of the bag 30 and then penetrates out of the group matching holes 62, and the screw tube 63 is internally screwed with a screw 66, so that the body 10 is fixed on the left handle bar 100 a/the right handle bar 100b of.

Referring to fig. 1-3 and fig. 4A, 4B, 5A, and 5B, taking the right handlebar 100B assembled on the bicycle as an example, the hydraulic cylinder 11, the reservoir 12, the brake oil tube 200, the first channel 15, and the second channel 16 of the present invention are filled with brake oil, when the rider presses the actuating end 42 of the brake handle 40 to lean against the right handlebar 100B of the bicycle, the pivot end 41 of the brake handle 40 rotates about the pivot 53, so that the linkage 51 rotates clockwise, the top portion 513 of the linkage 51 pushes the passive rod 225 behind the piston 22, so that the piston 22 moves toward the first end 111 of the hydraulic cylinder 11, and the elastic member 21 is pressed by the piston 22 to be in a condensed state, and the hook portion 519 of the elastic ring 518 is pressed by the positioning seat 52, so that when the first oil seal 223 on the piston 22 seals the opening 153 of the first channel 15 on the wall of the hydraulic cylinder 11 and the opening 163 of the second channel 16 on the wall of the hydraulic cylinder 11, the brake oil in the reservoir 12 can be blocked to enter the hydraulic cylinder 11, and the brake handle 40 is continuously pressed to lean against the right handlebar 100b of the bicycle, so that the brake oil in the hydraulic cylinder 11 and the brake oil pipe 200 can be boosted, and the braking effect is achieved.

On the contrary, when the rider releases the brake lever 40 by hand, the piston 22 is retracted backward by the oil pressure in the brake oil pipe 200 and the rebound tension of the elastic member 21, when the first oil seal 223 on the piston 22 is retracted from the opening 153 of the first passage 15 on the wall of the hydraulic cylinder 11 and the opening 163 of the second passage 16 on the wall of the hydraulic cylinder 11, the brake oil in the reservoir 12 is guided into the hydraulic cylinder 11, the brake lever 40 is restored by the piston 22 and pushed by the passive rod 225, and the restoration of the brake lever 40 is enhanced by the restoring force of the hook 519 of the elastic ring 518 that is wound around the outer periphery of the ring 517.

Since the air bubbles are collected toward the upper surface of the brake fluid in a lighter amount than the brake fluid, when the brake fluid in the brake fluid tube 200 generates air bubbles due to a high temperature, the air bubbles flow back toward the hydraulic cylinder 11.

When the present invention is installed on the right handlebar 100B of the bicycle, please refer to fig. 5A and 5B, when viewed along the central axis C of the piston 22, an included angle α is formed between the first axis a1 and the second axis a2, in this embodiment, the included angle α is 44 °, the height of the first opening 151 in the direction of the first channel 15 away from the hydraulic cylinder 11 is too high for the hydraulic cylinder 11, so that the bubbles in the hydraulic cylinder 11 can be gathered to the first channel 15 and enter the liquid storage tank 12, and when the rider presses the brake handle 40 to brake, there is no danger of brake failure.

Similarly, when the utility model discloses when installing at the left handlebar 100a of bicycle, can refer back to fig. 6, fig. 7, when observing along the central axis C of this piston 22, contained angle α has between this first axis A1 and this second axis A2, contained angle α is 44 jiaos, the second opening 161 that makes second passageway 16 keep away from this pneumatic cylinder 11 direction has highly is higher than pneumatic cylinder 11, consequently can make the bubble in the pneumatic cylinder 11 toward the gathering of second passageway 16 and get into in the reservoir 12, so make when pressing brake handle 40 and carrying out the brake operation, can not have the malfunctioning problem of brake.

It is worth mentioning that the utility model discloses can unscrew first, second screw 152, 162 of first, second passageway 15, 16, make the bubble of gathering in first, second passageway 15, 16 release completely to get rid of the bubble in first, second passageway 15, 16, in addition the utility model discloses hydraulic control structure mountable is at the left handlebar 100 a/right handlebar 100b of bicycle, consequently in manufacturing, only uses a mould, can save manufacturing cost greatly.

The present invention has been disclosed in terms of preferred embodiments, but it should be understood by those skilled in the art that these embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention. It should be noted that all equivalent changes and substitutions to the embodiments are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention should be determined by the claims of the present application.

Claims (10)

1. A hydraulic control structure assembled to a handlebar of a bicycle, comprising:

the device comprises a body, a first liquid storage tank, a second liquid storage tank, a first liquid storage tank and a second liquid storage tank, wherein the hydraulic cylinder is provided with a first end and a second end, and the second end is provided with an output port;

the piston is arranged in the hydraulic cylinder and moves between the first end and the second end along a central axis of the hydraulic cylinder so as to output the liquid in the hydraulic cylinder from the output port;

a first channel and a second channel are arranged between the hydraulic cylinder and the liquid storage tank, the first channel is provided with a first axis, and the second channel is provided with a second axis;

when viewed along a central axis of the piston, the first axis and the second axis form an included angle.

2. The hydraulic control architecture of claim 1, wherein the included angle is less than 180 ° and greater than or equal to 5 °.

3. The hydraulic control architecture of claim 2, wherein the included angle is less than 150 ° and equal to or greater than 15 °.

4. The hydraulic control architecture of claim 3, wherein the included angle is less than 120 ° and greater than or equal to 20 °.

5. The hydraulic control architecture of claim 4, wherein the included angle is less than 90 ° and greater than or equal to 22 °.

6. A hydraulic control arrangement as claimed in claim 1, wherein the cylinder is provided with a first balance passage adjacent the first passage at a position adjacent the first end of the cylinder.

7. A hydraulic control arrangement as claimed in claim 1, wherein the cylinder is provided with a second balance passage adjacent the second passage at a position adjacent the first end of the cylinder.

8. The hydraulic control architecture of claim 6, wherein the opening of the first equalization passage in the cylinder wall is larger in diameter than the opening of the first passage in the cylinder wall.

9. The hydraulic control architecture of claim 7, wherein the opening of the second balancing passage in the cylinder wall is larger in diameter than the opening of the second passage in the cylinder wall.

10. The hydraulic control structure of claim 1, wherein the first passage has a first opening facing away from the hydraulic cylinder, the first opening being sealed by a first screw; the second channel is provided with a second opening in the direction away from the hydraulic cylinder, and the second opening is sealed by screwing a second screw.

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