Control structure and bicycle

Abstract

The utility model relates to the technical field of bicycles, and particularly discloses a control structure and a bicycle, the control structure comprises a knob seat, a brake knob, a brake piston, a variable speed knob, a variable speed piston, a reset piece and an oil cylinder seat; the oil cylinder seat is fixed in the fixed pipe, a variable-speed oil cylinder and a brake oil cylinder are arranged in the oil cylinder seat, the variable-speed piston is sealed and movably connected with the variable-speed oil cylinder, and the brake piston is sealed and movably connected with the brake oil cylinder; the knob seat is sleeved on the fixed pipe; the brake knob is rotatably arranged on the knob seat in a sleeving manner, the brake knob is movably connected with the brake piston, and the brake piston can be driven to move in the axial direction of the brake oil cylinder by rotating the brake knob; the reset piece is connected with the brake knob and the knob seat and used for resetting the brake knob; the variable-speed knob is rotatably arranged on the knob seat in a sleeving manner, the variable-speed knob and the brake knob are arranged at intervals, the variable-speed knob is movably connected with the variable-speed piston, and the variable-speed piston can be driven to move in the axial direction of the variable-speed oil cylinder by rotating the variable-speed knob.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bicycle, especially the parts of bicycle. BACKGROUND

[0002] The existing bicycle brake, speed change parts are basically externally mounted on the handlebar, specifically including the oil cylinder main body and oil pipe for brake, speed change adjustment, brake or speed change handle controlled by the user, etc. are all exposed, the brake or speed change handle extends to the direction away from the handlebar as a whole, presents the form of mutual spacing with the handlebar, the above mounting mode and structure design will lead to the external structure of handlebar being messy and untidy, when the bicycle falls down or is pulled by other sundries, it is very easy to cause damage. In order to improve the structure neatness and durability of the existing bicycle, reduce the maintenance frequency and increase the service life, it is urgent to develop a brake, speed change adjustment structure that brake and speed change oil cylinder can be built-in in the handlebar, and the length of brake or speed change handle extension is smaller, which realizes the internal wiring and external structure neatness in the true sense. SUMMARY

[0003] Therefore, the utility model provides a control structure and bicycle for solving the technical problem in the above background art.

[0004] To achieve one or part or all of the above purposes or other purposes, the utility model provides a control structure, which is installed on a fixed pipe for use, and comprises a knob seat, a brake knob, a brake piston, a speed change knob, a speed change piston, a reset member and an oil cylinder seat.

[0005] The oil cylinder seat is fixed inside the fixed pipe, the oil cylinder seat is provided with a speed change oil cylinder and a brake oil cylinder, the speed change piston is sealingly and movably connected to the speed change oil cylinder, and the brake piston is sealingly and movably connected to the brake oil cylinder.

[0006] The knob seat is sleeved on the fixed pipe.

[0007] The brake knob is rotatably sleeved on the knob seat, the brake knob is movably connected to the brake piston, and rotating the brake knob can drive the brake piston to move along the axial direction of the brake oil cylinder; the reset member is connected to the brake knob and the knob seat and is used for resetting the brake knob.

[0008] The speed change knob is rotatably sleeved on the knob seat, the speed change knob is movably connected to the speed change piston, and rotating the speed change knob can drive the speed change piston to move along the axial direction of the speed change oil cylinder.

[0009] Preferably, the control structure further comprises a brake roller and a brake connecting pin.

[0010] The side wall of the knob seat and the side wall of the fixed tube are provided with brake guide holes, the inner side wall of the brake knob is further provided with a brake inclined sliding groove, one end of the brake connecting pin is connected with the brake piston, and the other end passes through the brake guide hole to connect the brake roller, which is arranged in the brake inclined sliding groove and can slide along the length direction of the brake inclined sliding groove; the length of the brake guide hole is not less than the maximum movement stroke of the brake connecting pin.

[0011] Preferably, the knob seat is provided with a first annular groove; the brake knob comprises a brake inner ring, a brake outer ring, a first clamping spring and a brake anti-skid sleeve;

[0012] The brake inner ring comprises a first inner half ring and a second inner half ring, the brake inner ring is spliced by the first inner half ring and the second inner half ring, and the brake inner ring is installed on the first annular groove by the first clamping spring, and the first annular groove is used for limiting the axial movement of the brake inner ring;

[0013] The brake inclined sliding groove is arranged on the inner wall of the brake inner ring, the brake connecting pin is connected to the side wall of the brake inner ring, and the outer wall of the brake inner ring is provided with a first limiting groove extending along the axial direction thereof;

[0014] The inner wall of the brake outer ring is provided with a first limiting block matched with the first limiting groove, the brake outer ring is sleeved on the brake inner ring, and the first limiting block and the first limiting groove are matched to limit the circumferential rotation of the brake outer ring;

[0015] The brake anti-skid sleeve is sleeved with the brake knob.

[0016] Preferably, the reset member is a torsion spring, the torsion spring is sleeved on the knob seat, and the first annular groove of the knob seat and the inner wall of the brake inner ring are both provided with a connecting protrusion, and the two ends of the torsion spring are connected with the two connecting protrusions respectively.

[0017] Preferably, the control structure further comprises a speed change roller and a speed change connecting pin;

[0018] The side wall of the knob seat and the side wall of the fixed tube are provided with speed change guide holes, the inner side wall of the speed change knob is further provided with a speed change inclined sliding groove, one end of the speed change connecting pin is connected with the speed change piston, and the other end passes through the speed change guide hole to connect the speed change roller, which is arranged in the speed change inclined sliding groove and can slide along the length direction of the speed change inclined sliding groove; the length of the speed change guide hole is not less than the maximum movement stroke of the speed change connecting pin.

[0019] Preferably, the outer side wall of the knob seat is provided with a positioning sliding groove along the circumferential direction thereof, the bottom of the positioning sliding groove is provided with a plurality of positioning holes, the speed change knob is provided with a positioning pin, the end of the positioning pin is provided with an elastically compressible wave bead, and when the speed change knob rotates, the wave bead can be clamped into the positioning hole.

[0020] Preferably, the knob seat is provided with a second annular groove; the gear shift knob comprises a gear shift inner ring, a gear shift outer ring, a second snap spring and a gear shift anti-skid sleeve;

[0021] The gear shift inner ring comprises a third inner half ring and a fourth inner half ring, the gear shift inner ring is spliced by the third inner half ring and the fourth inner half ring, and the gear shift inner ring is installed on the second annular groove through the second snap spring, and the second annular groove is used for limiting axial movement of the gear shift inner ring.

[0022] The gear shift inclined chute is arranged on the inner wall of the gear shift inner ring, the gear shift connecting pin is connected to the side wall of the gear shift inner ring, and the outer wall of the gear shift inner ring is provided with a second limiting groove extending in the axial direction.

[0023] The inner wall of the gear shift outer ring is provided with a second limiting block matched with the second limiting groove, the gear shift outer ring is sleeved on the gear shift inner ring, and the second limiting block and the second limiting groove are matched to limit circumferential rotation of the gear shift outer ring.

[0024] The gear shift anti-skid sleeve is sleeved on the gear shift knob.

[0025] Preferably, the oil cylinder seat is provided with a gear shift output oil cylinder and a brake output oil cylinder, the oil cylinder seat is provided with a first oil passing hole communicating the gear shift output oil cylinder and the gear shift oil cylinder and a second oil passing hole communicating the brake output oil cylinder and the brake oil cylinder, and the gear shift output oil cylinder, the gear shift oil cylinder, the brake output oil cylinder and the brake oil cylinder are distributed side by side in the oil cylinder seat.

[0026] The gear shift output oil cylinder and the brake output oil cylinder are both provided with an output oil port, and the gear shift oil cylinder and the brake oil cylinder are both provided with an oil injection pipe.

[0027] Preferably, the control structure further comprises an oil cavity sealing plate made of elastic material and an oil cavity sealing cover with air holes.

[0028] The outer wall of the oil cylinder seat is provided with a balance oil groove, the bottom of the balance oil groove is provided with an oil passing hole communicating the brake oil cylinder, the balance oil groove is sealed by the oil cavity sealing plate, and the balance oil groove is covered by the oil cavity sealing cover, so that a balance oil cavity is formed between the balance oil groove and the oil cavity sealing cover; the distance between the oil passing hole and the second oil passing hole is not less than the distance between the end of the brake piston when the brake piston is not stressed and the second oil passing hole.

[0029] A bicycle comprising the control structure.

[0030] The embodiment of the utility model has the following beneficial effects:

[0031] After the control structure is adopted, the brake knob is used to drive the movement of the brake piston on the brake oil cylinder, since the knob seat and the brake knob are installed in the fixed tube in a mutual sleeving mode, the brake knob is small compared with the outer extension size of the fixed tube, and the speed change knob is installed in the same mode as the brake knob, that is, the knob seat and the brake knob and the speed change knob are coaxially sleeved, so that the control structure for adjusting the brake and the speed change does not have an outwardly extending structure on the fixed tube, the problem of external structure disorder caused by the outward extension of the brake handle of the traditional bicycle is solved, the exposed structure of the handlebar part of the bicycle applying the control structure is neat, there is no redundant extension structure, and the bicycle is not easy to be damaged due to knocking when falling down. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0033] Among them:

[0034] Figure 1 It is an overall structure explosion diagram of the control structure in the present application;

[0035] Figure 2 It is an enlarged view of A part in Figure 1

[0036] Figure 3 It is an orthographic projection view of the control structure in the present application;

[0037] Figure 4 It is a B-B sectional view in Figure 3

[0038] Figure 5 It is a C-C sectional view in Figure 3

[0039] Figure 6 It is a separation schematic view of the oil cylinder seat, the knob seat, the brake knob and the speed change knob;

[0040] Figure 7 It is a separation schematic view of the speed change knob in the present application;

[0041] Figure 8 It is a separation schematic view of the brake knob in the present application;

[0042] Figure 9 It is a separation schematic view of the oil cylinder seat in the present application;

[0043] ​​​Figure 10 It is the assembly view of brake knob and brake piston, gear knob and gear piston;

[0044] Figure 11 It is the structure view of knob seat in the utility model Figure 1 ;

[0045] Figure 12 It is the structure view of knob seat in the utility model Figure 2 ;

[0046] Figure 13 It is the structure view of gear inner ring in the utility model

[0047] Figure 14 It is the structure view of brake inner ring in the utility model Figure 1 ;

[0048] Figure 15 It is the structure view of brake inner ring in the utility model Figure 2 ;

[0049] Figure 16 It is the front projection view of brake inner ring in the utility model

[0050] Figure 17 It is the sectional view of oil cylinder seat in the utility model.

[0051] Reference signs:

[0052] 1 knob seat, 11 first annular groove, 12 second annular groove, 13 brake guide hole, 14 gear guide hole, 17 connecting protrusion, 18 positioning sliding slot, 180 positioning hole;

[0053] 2 brake knob, 200 brake inclined sliding slot, 20 brake inner ring, 201 first inner half ring, 202 second inner half ring, 203 first limiting slot, 21 brake outer ring, 210 first limiting block, 22 first clamping spring, 23 brake anti-skid sleeve;

[0054] 3 brake piston, 30 brake roller, 31 brake connecting pin;

[0055] 4 gear knob, 40 gear inner ring, 400 gear inclined sliding slot, 401 third inner half ring, 402 fourth inner half ring, 403 second limiting slot, 41 gear outer ring, 410 second limiting block, 42 second clamping spring, 43 gear anti-skid sleeve, 44 positioning pin, 440 wave bead;

[0056] 5 gear piston, 50 gear roller, 51 gear connecting pin;

[0057] 6 reset piece

[0058] 7 oil cylinder seat, 70 brake oil cylinder, 700 second oil passing hole, 71 gear oil cylinder, 710 first oil passing hole, 72 brake output oil cylinder, 73 gear output oil cylinder, 723 output oil port, 74 oil injection pipe, 75 balance oil groove, 750 oil passing hole;

[0059] 80 oil cavity sealing plate, 81 oil cavity sealing cover;

[0060] 9 fixed pipe. DETAILED DESCRIPTION

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the description herein and the claims of the application and the above description of the drawings herein is not intended to be complete descriptions of all features of the application; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. Numerous specific details are set forth herein to provide a thorough understanding of the embodiments of the application. However, those skilled in the art will understand that the application can be practiced without the specific details set forth herein. In other instances, methods and apparatuses that would be known by one of ordinary skill have not been described in detail in order to not make the application unclear.

[0062] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of other embodiments. It is expressly understood that the embodiments described herein are merely examples from a whole class of embodiments of the application. It is further expressly understood that the application is not limited to the embodiments described herein, but instead has application to any apparatus that would normally fall within the scope of the claims hereto.

[0063] In order to make the technical personnel in the field of the present application better understand the present application scheme, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the drawings.

[0064] As shown in the drawings, the embodiment provided by the present application. Figures 1-17 As shown in the drawings, the embodiment provided by the present application.

[0065] The control structure provided by the embodiment of the present application is installed on the fixed pipe 9 for use, and the control structure comprises a knob seat 1, a brake knob 2, a brake piston 3, a gear knob 4, a gear piston 5, a reset member 6 and an oil cylinder seat 7.

[0066] The oil cylinder seat 7 is fixed inside the fixed pipe 9, and the oil cylinder seat 7 is provided with a gear oil cylinder 71 and a brake oil cylinder 70, the gear piston 5 is sealingly and movably connected to the gear oil cylinder 71, and the brake piston 3 is sealingly and movably connected to the brake oil cylinder 70.

[0067] The knob seat 1 is sleeved on the fixed pipe 9.

[0068] The brake knob 2 is rotatably sleeved on the knob seat 1, and the brake knob 2 is movably connected with the brake piston 3, and rotating the brake knob 2 can drive the brake piston 3 to move along the axial direction of the brake oil cylinder 70; the reset member 6 connects the brake knob 2 and the knob seat 1, and is used for resetting the brake knob 2;

[0069] The gear knob 4 is rotatably sleeved on the knob seat 1, and the gear knob 4 is movably connected with the brake knob 2, and rotating the gear knob 4 can drive the gear piston 5 to move along the axial direction of the gear oil cylinder 71.

[0070] Specifically, the fixed pipe 9 can be a handle part of a bicycle handle or an extended tubular structure connected to the bicycle handle, and the oil cylinder seat 7 can be fixed in the inside of the fixed pipe 9 through the structures such as connecting ears and threaded holes; in the embodiment, the knob seat 1, the brake knob 2 and the gear knob 4 all adopt tubular structures, wherein the knob seat 1 is sleeved on the outer wall of the fixed pipe 9, the brake knob 2 and the gear knob 4 are coaxially sleeved on the knob seat 1, and the brake knob 2 and the gear knob 4 are arranged at intervals to ensure that they do not interfere with each other during rotation; since the brake knob 2 is used at a high frequency when riding a bicycle, the length of the brake knob 2 in the embodiment is greater than the length of the gear knob 4, so as to facilitate the user to hold and rotate the brake knob 2 with the palm, and the brake knob 2 can also be arranged on the side close to the user's palm to improve the quick control of the brake adjustment when riding; the brake knob 2 is used to drive the brake piston 3 to move on the brake oil cylinder 70, and since the knob seat 1 and the brake knob 2 are installed in the fixed pipe 9 in a sleeved manner, the extension size of the brake knob 2 outside the fixed pipe 9 is small, and the gear knob 4 is installed in the same way as the brake knob 2, that is, the knob seat 1, the brake knob 2 and the gear knob 4 are coaxially sleeved, so that the structure of the control structure for adjusting the brake and the gear does not exist outside the fixed pipe 9, solving the problem of external structure disorder caused by the external extension of the brake handle of the traditional bicycle, making the exposed structure of the handle part of the bicycle applying the control structure neat, without redundant extension structure, and not easy to be damaged by knocking when the bicycle falls, and at the same time, not being pulled and hindered by sundries, so that the handle part of the bicycle applying the control structure has good durability and service life, reducing the maintenance frequency of the control structure for the user; and in the embodiment, the oil cylinder seat 7 with the brake oil cylinder 70 and the gear oil cylinder 71, the brake piston 3 and the gear piston 5 are built-in in the fixed pipe 9, and an oil pipe is arranged in the fixed pipe 9 or the handle to connect the oil cylinder seat 7 and the hydraulic brake on the bicycle, realizing the built-in and internal wiring effect of the control structure, which can prevent the oil cylinder seat 7, the brake piston 3, the gear piston 5 and the oil pipe from being damaged by external objects, and further improve the overall structure neatness and aesthetic effect of the handle part of the bicycle applying the control structure.

[0071] The brake knob 2 is movably sleeved on the knob seat 1 and is movably connected with the brake piston 3. When the brake knob 2 is rotated, the brake piston 3 can be pressed downward to squeeze the liquid of the brake cylinder 70, so as to achieve the purpose of controlling the brake. The reset member 6 is arranged between the knob seat 1 and the brake knob 2. After the force on the brake knob 2 is removed, the brake knob 2 can be reset to the initial position of not braking by the reset member 6, so as to improve the convenience of the user when using the control structure. The reset member 6 can be selected from a torsional spring, a tension spring and other elastic reset structures. For example, when the reset member 6 is selected from a tension spring, a plurality of protrusions can be arranged on the inner wall of the brake knob 2 in the axial direction, a plurality of grooves corresponding to the protrusions can be arranged on the outer wall of the knob seat 1, the tension spring is arranged in the grooves, and the two ends of the tension spring are connected with the protrusions and the inner wall of the grooves respectively. When the brake knob 2 is rotated, the tension spring can be stretched under force. When the brake knob 2 is not subjected to external force, the tension spring can reset the brake knob 2 to rotate and release the brake. Similarly, the shift knob 4 and the shift piston 5 are connected in the same way as the brake knob 2. The difference is that, since the bicycle shift often has multiple gear adjustments, the shift knob 4 needs to be fixed at a specified position. An elastic wave bead structure for limiting can be arranged between the shift knob 4 and the knob seat 1, so that the shift knob 4 can be kept stationary when rotated to the specified position, thereby achieving the retention of the shift control.

[0072] Referring to the accompanying drawings Figure 6 and the accompanying drawings Figure 10 The control structure further comprises a brake roller 30 and a brake connecting pin 31. The side wall of the knob seat 1 and the side wall of the fixed tube 9 are both provided with a brake guide hole 13. The inner side wall of the brake knob 2 is further provided with a brake inclined sliding groove 200. One end of the brake connecting pin 31 is connected with the brake piston 3, and the other end of the brake connecting pin 31 passes through the brake guide hole 13 to connect with the brake roller 30. The brake roller 30 is arranged in the brake inclined sliding groove 200 and can slide along the length direction of the brake inclined sliding groove 200. The length of the brake guide hole 13 is not less than the maximum movement stroke of the brake connecting pin 31.

[0073] In the embodiment, the brake knob 2 is connected to the brake piston 3 through the brake inclined sliding groove 200, the brake roller 30 and the brake connecting pin 31. Figure 4As shown, this structure allows the brake roller 30 to roll along the length of the brake inclined groove 200 when the brake knob 2 is rotated. The brake connecting pin 31, restricted by the brake guide hole 13, can only move along the length of the brake guide hole 13, thus allowing the brake piston 5 to move axially along the brake cylinder 70 to achieve braking control. In this embodiment, the brake roller 30 can also be a bearing or other structure that facilitates rotation. Because the two ends of the brake inclined groove 200 have a height difference, when the brake roller 30 is placed in different positions within the brake inclined groove 200, the brake piston 3 is in different positions within the brake cylinder 70, squeezing the liquid in the brake cylinder 70 to different degrees, achieving different braking forces. In this embodiment, the brake inclined groove 200, projected onto a vertical plane, has an inclination angle β with the end face of the brake knob 2, specifically as shown in the attached figure. Figure 16 The tilt angle β shown is greater than or equal to 30 degrees. In this embodiment, by setting the tilt angle β of the brake inclined slide 200 to 30 degrees or more, the different positions along the length of the brake inclined slide 200 have a greater height difference. This allows the brake knob 2 to rotate at a smaller angle, which in turn can compress the liquid in the brake cylinder 70, making it easier for the user to achieve braking by controlling the brake knob 2. At the same time, the greater height difference can reduce the friction between the brake roller 30 and the inner wall of the brake inclined slide 200, making it easier for the brake roller 30 to move repeatedly in the brake inclined slide 200. This allows the bicycle using this control structure to quickly achieve braking or brake release.

[0074] In some embodiments, the knob seat 1 is provided with a first annular groove 11; the brake knob 2 includes a brake inner ring 20, a brake outer ring 21, a first retaining spring 22, and a brake anti-slip sleeve 23; the brake inner ring 20 includes a first inner half ring 201 and a second inner half ring 202, the brake inner ring 20 is formed by splicing the first inner half ring 201 and the second inner half ring 202, and the brake inner ring 20 is mounted on the first annular groove 11 by the first retaining spring 22, the first annular groove 11 is used to restrict the brake inner ring 20. 0 axial movement; the brake oblique groove 200 is opened on the inner wall of the brake inner ring 20, the brake connecting pin 31 is connected to the side wall of the brake inner ring 20, the outer wall of the brake inner ring 20 is provided with a first limiting groove 203 extending along its axial direction; the inner wall of the brake outer ring 21 is provided with a first limiting block 210 that cooperates with the first limiting groove 203, the brake outer ring 21 is fitted on the brake inner ring 20, and the first limiting block 210 cooperates with the first limiting groove 203 to limit the circumferential rotation of the brake outer ring 21;

[0075] Specifically, the first inner half ring 201 and the second inner half ring 202 are spliced to form the brake inner ring 20, the outer wall of the brake inner ring 20 is provided with a snap spring groove, the first snap spring 22 is embedded in the snap spring groove of the brake inner ring 20, and the first inner half ring 201 and the second inner half ring 202 are limited in the first annular groove 11; after the reset member 6 is installed on the knob seat 1, the brake inner ring 20 is spliced by separating the first inner half ring 201 and the second inner half ring 202 from each other, and then the first snap spring 22 and the brake outer ring 21 are used for external cladding and fixing, so that the assembly of the control structure is facilitated, and the overall structural stability is improved; the first annular groove 11 on the knob seat 1 makes the brake knob 2 only rotate relative to the knob seat 1 and cannot move up and down, so as to realize stable driving of the brake piston 3; in order to facilitate the user to control the brake knob 2 and improve the holding feeling, a brake anti-skid sleeve 23 is sleeved on the brake knob 2 in the embodiment, and the anti-skid sleeve is made of rubber material.

[0076] In the embodiment, the reset member 6 is a torsion spring, the torsion spring is sleeved on the knob seat 1, the first annular groove 11 of the knob seat 1 and the inner wall of the brake inner ring 20 are both provided with a connecting protrusion 17, and the two ends of the torsion spring are connected to the two connecting protrusions 17 respectively; the two ends of the torsion spring are in a barb structure, the two ends of the torsion spring are hooked on the connecting protrusions 17 of the knob seat 1 and the brake inner ring 20 respectively, when the brake knob 2 is rotated to realize braking, the torsion spring is stretched and stored energy under force, and the brake knob 2 is reset when the external force on the brake knob 2 is removed, so that the purpose of releasing the brake is achieved.

[0077] The driving mode of the speed change knob 4 to the brake piston 3 is the same as that of the brake knob 2 to the brake piston 3, and only the differences are described in detail in the embodiment. Specifically, the control structure further comprises a speed change roller 50 and a speed change connecting pin 51; the side wall of the knob seat 1 and the side wall of the fixed tube 9 are both provided with a speed change guide hole 14, and the inner side wall of the speed change knob 4 is further provided with a speed change inclined sliding groove 400; one end of the speed change connecting pin 51 is connected to the speed change piston 5, and the other end passes through the speed change guide hole 14 to be connected to the speed change roller 50, which is placed in the speed change inclined sliding groove 400 and can slide along the length direction of the speed change inclined sliding groove 400; the length of the speed change guide hole 14 is not less than the maximum movement stroke of the speed change connecting pin 51. Specifically, since the brake inclined sliding groove 200 is an arc-shaped groove structure surrounding the inner wall of the speed change knob 4, when the speed change knob 4 rotates, the speed change roller 50 can roll along the length direction of the speed change inclined sliding groove 400. Since the two ends of the speed change inclined sliding groove 400 have a height difference, the speed change knob 4 can drive the speed change piston 5 to move upward or downward when rotating, so as to achieve the purpose of controlling the speed change. The projection of the speed change inclined sliding groove 400 on the vertical plane has an inclination angle with the end face of the speed change knob 4, and the inclination angle of the speed change inclined sliding groove 400 is smaller than the inclination angle β of the brake inclined sliding groove 200, so as to increase the friction between the speed change roller 50 and the speed change inclined sliding groove 400, so as to facilitate the fixing and retention of the speed change knob 4 at different positions of the speed change inclined sliding groove 400, and realize the gear retention after the speed change.

[0078] Specifically, a positioning sliding groove 18 is arranged on the outer side wall of the knob seat 1 along the circumferential direction, and a plurality of positioning holes 180 are arranged at the bottom of the positioning sliding groove 18. The speed change knob 4 is provided with a positioning pin 44, and the end of the positioning pin 44 is provided with an elastically compressible wave bead 440. When the speed change knob 4 rotates, the wave bead 440 can be clamped into the positioning hole 180. The plurality of positioning holes 180 are arranged at intervals along the positioning sliding groove 18, and the spacing of the plurality of positioning holes 180 can be set according to the actual speed regulation requirement. Different positioning holes 180 represent different depths of the speed change piston 55 extruding the liquid in the speed change oil cylinder 71. When the user actually uses it, the wave bead 440 can be clamped into the corresponding positioning hole 180 by rotating the speed change knob 4, so as to realize the speed change regulation of different gears. Since the wave bead 440 has a metal collision sound or a feedback of reaction force when it is clamped into the positioning hole 180, the user has a more obvious hand feeling feedback when actually rotating the speed change knob 4, thereby enhancing the experience and accuracy of the user in speed regulation. In other embodiments, a gear mark can also be arranged on the outer wall of the knob seat 1, and a corresponding indicating arrow is arranged on the outer wall of the speed change knob 4, so as to improve the accuracy and readability of the user in adjustment

[0079] In order to facilitate the assembly of the gear knob 4 and related components, the gear knob 4 has a similar structure to the brake knob 2, and the same parts will not be described in detail. Specifically, the second annular groove 12 is arranged on the outer wall of the knob seat 1, and the second annular groove 12 is arranged in parallel with the first arc-shaped groove; the gear knob 4 comprises a gear inner ring 40, a gear outer ring 41, a second snap spring 42, and a gear anti-skid sleeve 43; the gear inner ring 40 comprises a third inner half ring 401 and a fourth inner half ring 402, and the gear inner ring 40 is formed by splicing the third inner half ring 401 and the fourth inner half ring 402, and the gear inner ring 40 is installed on the second annular groove 12 through the second snap spring 42, and the second annular groove 12 is used to limit the axial movement of the gear inner ring 40; the gear inclined sliding groove 400 is arranged on the inner wall of the gear inner ring 40, the gear connecting pin 51 is connected to the side wall of the gear inner ring 40, and the outer wall of the gear inner ring 40 is provided with a second limiting groove 403 extending in the axial direction; the inner wall of the gear outer ring 41 is provided with a second limiting block 410 matched with the second limiting groove 403, the gear outer ring 41 is sleeved on the gear inner ring 40, and the second limiting block 410 and the second limiting groove 403 are matched to limit the circumferential rotation of the gear outer ring 41; the gear anti-skid sleeve 43 is sleeved on the gear knob 4.

[0080] Referring to the accompanying drawings Figure 17 The oil cylinder seat 7 is provided with a gear output oil cylinder 73 and a brake output oil cylinder 72, and the oil cylinder seat 7 is provided with a first oil passing hole 710 communicating the gear output oil cylinder 73 and the gear oil cylinder 71, and a second oil passing hole 700 communicating the brake output oil cylinder 72 and the brake oil cylinder 70, and the gear output oil cylinder 73, the gear oil cylinder 71, the brake output oil cylinder 72, and the brake oil cylinder 70 are arranged in parallel in the oil cylinder seat 7.

[0081] Specifically, the variable speed output oil cylinder 73 and the brake output oil cylinder 72 are each provided with an output oil port 723 for connecting an oil pipe, so that the liquid in the oil cylinder seat 7 can be sent to the corresponding regulator for work after being extruded by the piston. From the axial cross section of the oil cylinder seat 7, the variable speed output oil cylinder 73, the variable speed oil cylinder 71, the brake output oil cylinder 72 and the brake oil cylinder 70 are circumferentially distributed, and the multiple oil cylinders distributed side by side make full use of the internal space of the oil cylinder seat 7, so that the oil cylinder seat 7 has a larger volume with a smaller lateral area, and makes full use of the advantage of the long axial space of the fixed pipe 9 or the handlebar. In the embodiment, the first oil passing hole 710 and the second oil passing hole 700 are both arranged at the bottom position away from the corresponding piston, for example, the first oil passing hole 710 is arranged at the bottom of the variable speed oil cylinder 71 away from the variable speed piston 5, so that when the variable speed piston 5 moves downward in the variable speed oil cylinder 71, the variable speed piston 5 can extrude the liquid, so that the liquid enters the variable speed output oil cylinder 73 through the first oil passing hole 710. In the embodiment, the output oil port 723 is arranged at one end away from the first oil passing hole 710 or the second oil passing hole 700, specifically, the variable speed piston 5, the brake piston 3 and the output oil port 723 are arranged at the same end, which facilitates driving the variable speed piston 5 or the brake piston 3, and facilitates connecting the oil pipe to the oil cylinder seat 7, avoids the situation that the oil pipe is connected around, improves the installation rationality of the oil cylinder seat 7 in the fixed pipe 9, and reduces the interference between parts. In addition, the variable speed oil cylinder 71 and the brake oil cylinder 70 are each provided with an oil injection pipe 74, specifically, the two oil injection pipes 74 are connected to the end portions of the variable speed oil cylinder 71 and the brake oil cylinder 70, and the oil injection pipe 74 is distributed with the oil pipe in the fixed pipe 9 at both ends of the oil cylinder seat 7, that is, the other end of the oil injection pipe 74 can pass through the fixed pipe 9 and be fixed to the end portion of the fixed pipe 9, and a sealing cover can be arranged at this end of the oil injection pipe 74. When the liquid in the inside is insufficient, the user can supplement the liquid in the oil cylinder seat 7 by opening the sealing cover. In actual application, the brake piston 3 moves in the brake oil cylinder 70 to extrude the liquid in the brake oil cylinder 70 to the brake output oil cylinder 72 through the second oil passing hole 700, and the brake output oil cylinder 72 delivers the liquid to the brake of the bicycle through the output oil port 723 and the oil pipe to achieve the purpose of braking. The variable speed piston 5 moves in the same way as the brake piston 3 to achieve the purpose of variable speed, which will not be described again.

[0082] Referring to the drawings Figure 9, the control structure further comprises an oil cavity sealing plate 80 made of elastic material and an oil cavity sealing cover 81 with air holes; the outer wall of the oil cylinder seat 7 is provided with a balance oil groove 75, the bottom of the balance oil groove 75 is provided with an oil passing hole 750 communicating with the brake oil cylinder 70, the oil cavity sealing plate 80 covers and seals the balance oil groove 75, and the oil cavity sealing cover 81 covers the balance oil groove 75, so that the balance oil groove 75 and the oil cavity sealing cover 81 form a balance oil cavity; the distance between the oil passing hole 750 and the second oil passing hole 700 is not less than the distance between the end of the brake piston 3 and the second oil passing hole 700 when the brake piston 3 is not stressed; the bicycle is used outdoors, so that the liquid in the brake oil cylinder 70 or the oil pipe is easily affected by the change of external temperature, for example, in the season of spring and summer, there is a large temperature difference between morning and evening, so that the liquid in the container is prone to thermal expansion and cold contraction, that is, when the internal temperature of the brake oil cylinder 70 rises due to the rise of external temperature, the liquid in the brake oil cylinder 70 is affected by thermal expansion and cold contraction, and the liquid in the brake oil cylinder 70 will expand when heated; the balance oil cavity is provided, so that the liquid can flow into the balance oil cavity through the oil passing hole 750 or flow back to the brake oil cylinder 70 from the balance oil cavity, and the thermal expansion liquid in the brake oil cylinder 70 can be relieved through the balance oil cavity, so as to avoid that the over-expanded liquid bursts the oil pipe or the brake oil cylinder 70; specifically, when the brake piston 3 is not driven by the brake knob 2, the brake piston 3 is in the initial position, at this time, the outer wall of the end in the brake piston 3 closes the oil passing hole 750, and the liquid in the brake oil cylinder 70 cannot enter the balance oil cavity, and when the brake piston 3 moves towards the second oil passing hole 700, the liquid in the brake oil cylinder 70 is away from the oil passing hole 750, so the liquid still cannot enter the balance oil cavity, so as to ensure that the brake piston 3 can extrude the liquid to the brake output oil cylinder 72 when moving, and realize the brake effect; on the contrary, after the internal temperature of the brake oil cylinder 70 rises due to the rise of external temperature, the liquid expands and moves away from the second oil passing hole 700, and the oil passing hole 750 is opened, at this time, the liquid can enter the balance oil cavity through the oil passing hole 750, so as to avoid that the liquid expands in the internal to cause the brake caliper to be stuck, and the liquid can flow back to the brake oil cylinder 70 when the temperature decreases; the elastic oil cavity sealing plate 80 can be deformed when the liquid in the balance oil cavity is too much, so as to increase the volume of the balance oil cavity, and the external oil cavity sealing cover 81 is made of metal material, so as to improve the firmness of installation, and the air holes of the oil cavity sealing cover 81 are beneficial to relieve the air pressure in the balance oil cavity, and facilitate the flow of liquid between the balance oil cavity and the brake oil cylinder 70. It also needs to be said that the same oil hole structure can be arranged between the gear oil cylinder 71 and the balance oil cavity to achieve the same effect, which will not be described here.

[0083] In some embodiments, the utility model also provides a bicycle, including above-mentioned control structure.

[0084] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A control structure, installed for use on a fixed pipe, characterized by, The control structure comprises a knob seat, a brake knob, a brake piston, a gear knob, a gear piston, a reset member and an oil cylinder seat; The oil cylinder seat is fixed inside the fixed tube, and the oil cylinder seat is provided with a gear oil cylinder and a brake oil cylinder, the gear piston is sealingly and movably connected to the gear oil cylinder, and the brake piston is sealingly and movably connected to the brake oil cylinder; The knob seat is sleeved on the fixed tube; The brake knob is rotatably sleeved on the knob seat, the brake knob is movably connected to the brake piston, and rotating the brake knob can drive the brake piston to move along the axial direction of the brake oil cylinder; the reset member is connected to the brake knob and the knob seat, and is used for resetting the brake knob; The gear knob is rotatably sleeved on the knob seat, the gear knob is movably connected to the gear piston, and rotating the gear knob can drive the gear piston to move along the axial direction of the gear oil cylinder.

2. The control structure of claim 1, wherein, The control structure further comprises a brake roller and a brake connecting pin; The side wall of the knob seat and the side wall of the fixed tube are both provided with a brake guide hole, the inner side wall of the brake knob is further provided with a brake inclined sliding groove, one end of the brake connecting pin is connected to the brake piston, and the other end of the brake connecting pin passes through the brake guide hole and is connected to the brake roller, the brake roller is arranged in the brake inclined sliding groove and can slide along the length direction of the brake inclined sliding groove, and the length of the brake guide hole is not less than the maximum movement stroke of the brake connecting pin.

3. The control structure of claim 2, wherein, The knob seat is provided with a first annular groove; the brake knob comprises a brake inner ring, a brake outer ring, a first clamping spring and a brake anti-skid sleeve; The brake inner ring comprises a first inner half ring and a second inner half ring, the brake inner ring is spliced by the first inner half ring and the second inner half ring, the brake inner ring is installed on the first annular groove by the first clamping spring, and the first annular groove is used for limiting the axial movement of the brake inner ring; The brake inclined sliding groove is arranged on the inner wall of the brake inner ring, the brake connecting pin is connected to the side wall of the brake inner ring, and the outer wall of the brake inner ring is provided with a first limiting groove extending along the axial direction thereof; The inner wall of the brake outer ring is provided with a first limiting block matched with the first limiting groove, the brake outer ring is sleeved on the brake inner ring, and the first limiting block and the first limiting groove are matched to limit the circumferential rotation of the brake outer ring; The brake anti-skid sleeve is sleeved on the brake knob.

4. The control structure of claim 3, wherein, The reset member is a torsion spring, the torsion spring is sleeved on the knob seat, and the first annular groove of the knob seat and the inner wall of the brake inner ring are both provided with a connecting protrusion, and the two ends of the torsion spring are respectively connected to the two connecting protrusions.

5. The control structure of claim 3, wherein, The control structure further comprises a gear roller and a gear connecting pin; The side wall of the knob seat and the side wall of the fixed tube are both provided with a gear guide hole, the inner side wall of the gear knob is further provided with a gear inclined sliding groove, one end of the gear connecting pin is connected to the gear piston, and the other end of the gear connecting pin passes through the gear guide hole and is connected to the gear roller, the gear roller is arranged in the gear inclined sliding groove and can slide along the length direction of the gear inclined sliding groove, and the length of the gear guide hole is not less than the maximum movement stroke of the gear connecting pin.

6. The control structure of claim 5, wherein, The outer side wall of the knob seat is provided with a positioning sliding groove along the circumference thereof, and the bottom of the positioning sliding groove is provided with a plurality of positioning holes; the variable speed knob is provided with a positioning pin, and the end of the positioning pin is provided with an elastically compressible wave bead; when the variable speed knob rotates, the wave bead can be clamped into the positioning hole.

7. The control structure of claim 6, wherein, The knob seat is provided with a second annular groove; the variable speed knob comprises a variable speed inner ring, a variable speed outer ring, a second clamp spring and a variable speed anti-skid sleeve; The variable speed inner ring comprises a third inner half ring and a fourth inner half ring, the variable speed inner ring is spliced by the third inner half ring and the fourth inner half ring, and the variable speed inner ring is installed on the second annular groove through the second clamp spring, and the second annular groove is used for limiting the axial movement of the variable speed inner ring; The variable speed inclined sliding groove is opened in the inner wall of the variable speed inner ring, the variable speed connecting pin is connected to the side wall of the variable speed inner ring, and the outer wall of the variable speed inner ring is provided with a second limiting groove extending along the axial direction thereof; The inner wall of the variable speed outer ring is provided with a second limiting block matched with the second limiting groove, the variable speed outer ring is sleeved on the variable speed inner ring, and the second limiting block and the second limiting groove are matched to limit the circumferential rotation of the variable speed outer ring; The variable speed anti-skid sleeve is sleeved with the variable speed knob.

8. The control structure of claim 6, wherein, The oil cylinder seat is provided with a variable speed output oil cylinder and a brake output oil cylinder, the oil cylinder seat is provided with a first oil passing hole communicating the variable speed output oil cylinder and the variable speed oil cylinder, and a second oil passing hole communicating the brake output oil cylinder and the brake oil cylinder, and the variable speed output oil cylinder, the variable speed oil cylinder, the brake output oil cylinder and the brake oil cylinder are distributed side by side in the oil cylinder seat; The variable speed output oil cylinder and the brake output oil cylinder are both provided with an output oil port, and the variable speed oil cylinder and the brake oil cylinder are both provided with an oil injection pipe.

9. The control structure of claim 8, wherein, The control structure further comprises an oil cavity sealing plate made of elastic material and an oil cavity sealing cover with air holes; The outer wall of the oil cylinder seat is provided with a balance oil groove, the bottom of the balance oil groove is provided with an oil passing hole communicating with the brake oil cylinder, the balance oil groove is sealed by the oil cavity sealing plate, and the balance oil groove is covered by the oil cavity sealing cover to form a balance oil cavity between the balance oil groove and the oil cavity sealing cover; the distance between the oil passing hole and the second oil passing hole is not less than the distance between the end of the brake piston when it is not stressed and the second oil passing hole.

10. A bicycle characterized in that, The control structure comprises the control structure according to any one of claims 1-9. The control structure comprises the control structure according to any one of claims 1-9.

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