Control structure, multi-knob control structure and bicycle

Abstract

The utility model relates to the technical field of bicycles, and particularly discloses a control structure, a multi-knob control structure and a bicycle, the control structure comprises a knob seat, a first knob, a first variable speed piston and an oil cylinder seat; the oil cylinder seat is mounted in the fixed pipe, a first variable-speed oil cylinder is arranged in the oil cylinder seat, and the first variable-speed piston is sealed and movably connected with the first variable-speed oil cylinder; the knob seat is sleeved on the fixed pipe; the first knob is rotatably sleeved on the knob seat, the first knob is movably connected with the first variable-speed piston, and the variable-speed piston can be driven to move along the axial direction of the first variable-speed oil cylinder by rotating the first knob; the problem that the external structure is disordered due to outward extension of the variable-speed shifting finger of the traditional bicycle is solved, so that the exposed structure of the handlebar part of the bicycle applying the control structure is clean and tidy.

Description

TECHNICAL FIELD

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

[0002] The speed change parts of the existing bicycle are basically externally mounted on the handlebar, specifically including the oil cylinder main body and oil pipe for speed change adjustment, the speed change finger dial controlled by the user, etc. are all exposed, the speed change finger dial extends in the direction away from the handlebar, and presents the form of mutual spacing with the handlebar. The above mounting mode and structural design will cause the external structure of the handlebar to be messy and untidy, and very easy to cause damage when the bicycle falls down or is pulled by other sundries. In order to improve the structural tidiness and durability of the existing bicycle, reduce the maintenance frequency and increase the service life, it is urgent to develop a speed change adjustment structure which can internally place the speed change oil cylinder in the handlebar and externally extend the length of the speed change finger dial, and truly realize internal wiring and external structural tidiness. SUMMARY

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

[0004] In order 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 the control structure comprises a knob seat, a first knob, a first speed change piston and an oil cylinder seat.

[0005] The oil cylinder seat is installed inside the fixed pipe, the first speed change oil cylinder is arranged in the oil cylinder seat, and the first speed change piston is sealingly and movably connected to the first speed change oil cylinder.

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

[0007] The first knob is rotatably sleeved on the knob seat, the first knob is movably connected to the first speed change piston, and rotating the first knob can drive the speed change piston to move along the axial direction of the first speed change oil cylinder.

[0008] Preferably, the control structure further comprises a first roller and a first connecting pin.

[0009] The side wall of the knob seat and the side wall of the fixed pipe are both provided with a first guide hole, the inner side wall of the first knob is further provided with a first inclined sliding groove, one end of the first connecting pin is connected to the first speed change piston, and the other end of the first connecting pin is connected to the first roller through the first guide hole. The first roller is arranged in the first inclined sliding groove and can slide along the length direction of the first inclined sliding groove. The length of the first guide hole is not less than the maximum movement stroke of the first connecting pin.

[0010] Preferably, the outer side wall of the knob seat is provided with a first positioning sliding groove along the circumference thereof, and the first positioning sliding groove is provided with a plurality of first positioning holes at the bottom thereof; the first knob is provided with a first positioning pin, and the end of the first positioning pin is provided with a first wave bead capable of being elastically compressed; when the first knob rotates, the first wave bead can be clamped into the first positioning hole.

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

[0012] The first inner half ring and the second inner half ring are spliced to form a first inner ring, and the first inner ring is installed on the first annular groove through the first clamping spring, and the first annular groove is used to limit the axial movement of the first inner ring;

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

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

[0015] The first anti-skid sleeve is sleeved on the first outer ring.

[0016] Preferably, the first variable speed piston comprises a push rod, a sealing column and an external connecting pipe, the push rod is provided with an oil injection hole extending through the axial direction, one end of the push rod is provided with a piston part matched with the first variable speed oil cylinder, the other end of the push rod is connected with the external connecting pipe, the external connecting pipe is connected with the first connecting pin, and the sealing column is embedded at the end of the oil injection hole away from the first variable speed oil cylinder.

[0017] A multi-knob control structure comprises the control structure described above, and further comprises a second knob and a second variable speed piston.

[0018] The oil cylinder seat is provided with a second variable speed oil cylinder, the second variable speed oil cylinder is distributed in the oil cylinder seat in parallel with the first variable speed oil cylinder, and the second variable speed piston is sealingly and movably connected with the second variable speed oil cylinder.

[0019] The second knob is rotatably sleeved on the knob seat, and the second knob is arranged in the axial direction of the knob seat and spaced apart from the first knob; the second knob is movably connected with the second variable speed piston, and rotating the second knob can drive the variable speed piston to move along the axial direction of the second variable speed oil cylinder.

[0020] Preferably, the multi-knob control structure further comprises a second roller and a second connecting pin.

[0021] The side wall of the knob seat and the side wall of the fixed tube are provided with second guide holes, the inner side wall of the second knob is further provided with a second inclined sliding groove, one end of a second connecting pin is connected to the second variable speed piston, and the other end of the second connecting pin is connected to a second roller through the second guide hole, the second roller is arranged in the second inclined sliding groove and can slide along the length direction of the second inclined sliding groove, and the length of the second guide hole is not less than the maximum movement stroke of the second connecting pin.

[0022] The outer side wall of the knob seat is provided with a second positioning sliding groove along the circumferential direction of the knob seat, the bottom of the second positioning sliding groove is provided with a plurality of second positioning holes, the second knob is provided with a second positioning pin, the end of the second positioning pin is provided with an elastically compressible second wave bead, and when the second knob rotates, the second wave bead can be clamped into the second positioning hole.

[0023] Preferably, the outer wall of the knob seat is provided with a second annular groove, the second annular groove is arranged in the axial direction of the knob seat and is spaced apart from the first annular groove, the second knob comprises a third inner half ring, a fourth inner half ring, a second outer ring, a second snap spring and a second anti-skid sleeve,

[0024] The third inner half ring and the fourth inner half ring are spliced to form a second inner ring, the second inner ring is mounted on the second annular groove through the second snap spring, and the second annular groove is used for limiting the axial movement of the first inner ring;

[0025] The second inclined sliding groove is arranged in the inner wall of the second inner ring, the second positioning pin is connected to the side wall of the first inner ring, and the outer wall of the second inner ring is provided with a second limiting groove extending in the axial direction of the second inner ring;

[0026] The inner wall of the second outer ring is provided with a second limiting block matched with the second limiting groove, the second outer ring is sleeved on the second 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;

[0027] The second anti-skid sleeve is sleeved on the second outer ring.

[0028] A bicycle comprising the multi-knob control structure.

[0029] The embodiments of the present application have the following beneficial effects:

[0030] After the control structure is adopted, the knob seat and the first knob are installed in a mutually sleeved manner on the fixed tube, so that the first knob does not exist outwardly extending structure compared with the fixed tube, through the coaxial sleeving manner, the problem of external structure disorder caused by the outward extension of the traditional bicycle speed change finger is solved, so that the exposed structure of the handlebar part of the bicycle applying the control structure is neat, without redundant extension structure, is not easy to be damaged by knocking when the bicycle falls, and will not be pulled by sundries, improve the good durability and service life of the handlebar part of the bicycle applying the control structure, reduce the maintenance frequency of the user to the control structure; BRIEF DESCRIPTION OF DRAWINGS

[0031] 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 embodiment or the prior art description will be briefly introduced below. 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 without creative labor on the basis of these drawings.

[0032] Among them:

[0033] Figure 1 The overall structure of the embodiment one is shown Figure 1 ;

[0034] Figure 2 The overall structure of the embodiment one is shown Figure 2 ;

[0035] Figure 3 The overall structure of the embodiment one is shown

[0036] Figure 4 The overall structure of the embodiment one is shown

[0037] Figure 5 The first knob and the knob seat of the embodiment one are shown

[0038] Figure 6 The first knob of the embodiment one is shown

[0039] Figure 7 The structure of the knob seat of the embodiment one is shown

[0040] Figure 8 The structure of the first inner ring of the embodiment one is shown

[0041] Figure 9 The first speed change piston of the embodiment one is shown

[0042] Figure 10 The overall structure of the embodiment two is shown

[0043] Figure 11 is an exploded view of the overall structure in Example Two;

[0044] Figure 12 is an A-A sectional view in Figure 10

[0045] Figure 13 is a disassembled view of the first knob, the second knob and the knob seat in Example Two;

[0046] Figure 14 is an exploded view of the second knob in Example Two;

[0047] Figure 15 is a structural view of the knob seat in Example Two;

[0048] Figure 16 is a structural view of the third inner ring in Example Two;

[0049] Figure 17 is an assembly view of the first speed-changing piston, the second speed-changing piston and the oil cylinder seat in Example Two;

[0050] Figure 18 is a disassembled view of the first speed-changing piston, the second speed-changing piston and the oil cylinder seat in Example Two.

[0051] Reference signs:

[0052] 1, knob seat; 101, first annular groove; 102, second annular groove; 11, first guide hole; 12, second guide hole; 13, first positioning sliding slot; 130, first positioning hole; 14, second positioning sliding slot; 140, second positioning hole;

[0053] 2, first knob; 20, first inclined sliding slot; 21, first positioning pin; 210, first wave bead; 22, first inner ring; 220, first limiting groove; 221, first inner half ring; 222, second inner half ring; 23, first outer ring; 230, first limiting block; 24, first clamping spring; 25, first anti-skid sleeve;

[0054] 3, first speed-changing piston; 30, first connecting pin; 31, first roller; 32, push rod; 320, oil injection hole; 321, piston part; 33, sealing column; 34, external connecting pipe;

[0055] 4, oil cylinder seat; 41, first speed-changing oil cylinder; 42, second speed-changing oil cylinder;

[0056] ​5, second knob; 50, second inclined chute; 51, second positioning pin; 510, second wave bead; 52, second inner ring; 520, second limiting groove; 521, third inner half ring; 522, fourth inner half ring; 53, second outer ring; 530, second limiting block; 54, second snap spring; 55, second anti-skid sleeve;

[0057] 6, second speed change piston; 60, second connecting pin; 62, second roller;

[0058] 7, fixed tube; 70, outer cover;

[0059] 8, handlebar. DETAILED DESCRIPTION

[0060] 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 specification herein is for describing particular embodiments only and is not intended to be limiting of the application; the present application is well suited to carry out the objects and advantages thereof and will be understood by practitioners of the art. The following detailed description is presented primarily for the purpose of enabling others to make and use the application.

[0061] Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" or "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same application. It is explicitly contemplated that embodiments described herein can be combined with each other, even though some combinations are not explicitly set forth herein.

[0062] For those skilled in the art to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely in conjunction with the drawings.

[0063] Embodiment one:

[0064] As shown in the accompanying drawings, the embodiment one of the present application provides a control structure, which is installed on the fixed tube 7 for use, and the control structure comprises a knob seat 1, a first knob 2, a first speed change piston 3 and an oil cylinder seat 4. Figures 1-9 The oil cylinder seat 4 is installed inside the fixed tube 7, and the oil cylinder seat 4 is provided with a first speed change oil cylinder 41, and the first speed change piston 3 is sealingly and movably connected to the first speed change oil cylinder 41; the knob seat 1 is sleeved on the fixed tube 7.

[0065]

[0066] ​The first knob 2 is rotatably sleeved on the knob seat 1, the first knob 2 is movably connected with the first gear shift piston 3, and rotating the first knob 2 can drive the gear shift piston to move along the axial direction of the first gear shift cylinder 41.

[0067] Specifically, the fixed pipe 7 can be a handle part of a bicycle handlebar 8, and specific embodiments are shown in the accompanying drawings. Figure 1 Specifically, the fixed pipe 7 can be an extension structure on the bicycle handlebar 8, and specific embodiments are shown in the accompanying drawings. Figure 2 In the assembly of the control structure, the actual needs can be selected, and the embodiment only explains the case that the control structure is assembled in the fixed pipe 7 as the handle part of the bicycle handlebar 8. Specifically, the oil cylinder seat 4 is fixed in the inner part of the fixed pipe 7 by setting connecting ears, threaded holes and other structures; in the embodiment, the knob seat 1 and the first knob 2 adopt a cylindrical structure, wherein the knob seat 1 is sleeved on the outer wall of the fixed pipe 7, and the first knob 2 is coaxially sleeved on the knob seat 1, and the coaxially arranged first knob 2 is used to drive the first gear shift piston 3 to move on the first gear shift cylinder 41. Since the knob seat 1 and the first knob 2 are installed in the fixed pipe 7 in a sleeved manner, the first knob 2 does not have an outwardly extending structure compared with the fixed pipe 7, and by the coaxial sleeving manner, the problem of external structure disorder caused by the outward extension of the traditional bicycle gear shifting finger is solved, so that the exposed structure of the bicycle handlebar 8 part of the bicycle applying the control structure is neat, and there is no redundant extension structure, which is not easy to be damaged by knocking when the bicycle falls, and at the same time, it will not be pulled and hindered by sundries, so that the bicycle handlebar 8 part applying the control structure has good durability and service life, and the maintenance frequency of the user to the control structure is reduced. In the embodiment, the first gear shift cylinder 41 and the first gear shift piston 3 are built-in in the fixed pipe 7, and the oil pipe is arranged in the fixed pipe 7 or the handlebar 8 to connect the first gear shift cylinder 41 and the hydraulic gear shifter on the bicycle, so as to realize the built-in and internal wiring effect of the control structure, so that the first gear shift cylinder 41, the first gear shift piston 3 and the oil pipe can be prevented from being damaged by external objects, and the overall structure neatness and aesthetic effect of the bicycle handlebar 8 of the bicycle applying the control structure are further improved. The first knob 2 is movably sleeved on the knob seat 1 and movably connected with the first gear shift piston 3, and when the first knob 2 is rotated, the first gear shift piston 3 can be pressed to extrude the liquid in the first gear shift cylinder 41 to achieve the purpose of controlling gear shifting. For example, an inclined side wall extending into the knob seat 1 can be arranged in the first knob 2, the inclined side wall abuts against the first gear shift piston 3, and the height difference of the inclined side wall makes the first gear shift piston 3 be pressed when the first knob 2 is rotated.

[0068] In the embodiment, the control structure further comprises a first roller 31 and a first connecting pin 30.

[0069] The side wall of the knob seat 1 and the side wall of the fixed tube 7 are provided with first guide holes 11, and the inner side wall of the first knob 2 is further provided with a first inclined sliding groove 20. One end of a first connecting pin 30 is connected to the first speed change piston 3, and the other end of the first connecting pin 30 passes through the first guide hole 11 and is connected to a first roller 31. The first roller 31 is arranged in the first inclined sliding groove 20 and can slide along the length direction of the first inclined sliding groove 20. The length of the first guide hole 11 is not less than the maximum movement stroke of the first connecting pin 30.

[0070] In the embodiment, the first knob 2 is connected to the first speed change piston 36 through the first inclined sliding groove 20 and the first roller 31 and the first connecting pin 30. As shown in the figure, when the first knob 2 is rotated, the first roller 31 can roll along the length direction of the first inclined sliding groove 20, and the first speed change piston 36 is driven to move upward or downward, so as to achieve the purpose of controlling the speed change. Figure 9

[0071] Referring to the accompanying drawings, Figure 7 The outer side wall of the knob seat 1 is provided with a first positioning sliding groove 13 along the circumference thereof. The first positioning sliding groove 13 is provided with a plurality of first positioning holes 130 at the bottom thereof. The first knob 2 is provided with a first positioning pin 21. The end of the first positioning pin 21 is provided with a first wave bead 210 which can be elastically compressed. When the first knob 2 is rotated, the first wave bead 210 can be clamped into the first positioning hole 130.

[0072] In the embodiment, the first positioning sliding groove 13 is provided with a plurality of first positioning holes 130 at the bottom thereof. The first knob 2 is provided with the first positioning pin 21, and the end of the first positioning pin 21 is provided with the first wave bead 210 which can be elastically compressed. When the first knob 28 is rotated, the first wave bead 210 can be clamped into the first positioning hole 130. At this time, only the stroke of the speed change gear position, that is, the rotation angle of the first knob 28, needs to be matched with the position of the first positioning hole 130, so as to achieve the purpose of gear position feedback. That is, when the user adjusts to a certain gear position, the first wave bead 210 can be clamped into the first positioning hole 130, and the user obtains the feedback in the sense of touch, thereby enhancing the experience and accuracy of the user in adjusting the speed.

[0073] Referring to the accompanying drawings, Figure 6 - the accompanying drawings, Figure 8 ​, the outer wall of the knob seat 1 is provided with a first annular groove 101; the first knob 2 comprises a first inner half ring 221, a second inner half ring 222, a first outer ring 23, a first clamping spring 24 and a first anti-skid sleeve 25; the first inner half ring 221 and the second inner half ring 222 are spliced to form a first inner ring 22, the first inner ring 22 is installed on the first annular groove 101 through the first clamping spring 24, and the first annular groove 101 is used for limiting axial movement of the first inner ring 22; a first inclined sliding groove 20 is formed in the inner wall of the first inner ring 22, a first positioning pin 21 is connected to the side wall of the first inner ring 22, and the outer wall of the first inner ring 22 is provided with a first limiting groove 220 extending in the axial direction; the inner wall of the second outer ring 53 is provided with a first limiting block 230 matched with the first limiting groove 220, the second outer ring 53 is sleeved on the first inner ring 22, and the first limiting block 230 is matched with the first limiting groove 220 and used for limiting circumferential rotation of the variable speed outer ring; the first anti-skid sleeve 25 is sleeved with the first knob 2.

[0074] Specifically, the first inner half ring 221 and the second inner half ring 222 are spliced to form the first inner ring 22, the outer wall of the first inner ring 22 is provided with a clamping spring groove, the first clamping spring 24 is embedded in the clamping spring groove of the first inner ring 22, and the first inner half ring 221 and the second inner half ring 222 are limited in the first annular groove 101; the first inner half ring 221 and the second inner half ring 222 are spliced by being separated from each other to form the first inner ring 22, the first positioning pin 21 with the first wave bead 210 is connected to the side wall of the first inner ring 22, and the first clamping spring 24 and the first outer ring 23 are externally coated and fixed, facilitating assembly of the control structure and improving overall structural stability; the first annular groove 101 on the knob seat 11 makes the first knob 22 only rotate relative to the knob seat 11 and cannot move up and down, realizing stable driving of the first variable speed piston 33; in order to facilitate user control of the first knob 22 and improve the holding feeling, a first anti-skid sleeve 25 is sleeved on the first knob 22, and the first anti-skid sleeve 25 is made of rubber material.

[0075] Referring to the accompanying drawings Figure 9 The first variable speed piston 3 comprises a push rod 32, a sealing column 33 and an external connecting pipe 34, the push rod 32 is provided with an oil injection hole 320 extending in the axial direction, one end of the push rod 32 is provided with a piston part 321 matched with the first variable speed oil cylinder 41, the other end of the push rod 32 is connected with the external connecting pipe 34, the external connecting pipe 34 is connected with the first connecting pin 30, and the sealing column 33 is embedded in one end of the oil injection hole 320 away from the first variable speed oil cylinder 41.

[0076] In order to facilitate the liquid supplement inside the first variable speed oil cylinder 415, the push rod 32 is provided with an oil injection hole 320 connected with the first variable speed oil cylinder 41 and the outside, the sealing column 33 is screwed at one end of the oil injection hole 320 away from the piston part 321, a plurality of sealing rings are arranged on the outer wall of the sealing column 33, the outer wall of the sealing column 33 and the inner wall of the oil injection hole 320 are sealed by the plurality of sealing rings, and the cover 70 is arranged on the end of the fixed pipe 7, so that the first variable speed piston 3 and the oil cylinder seat 4 are not exposed.

[0077] Embodiment two:

[0078] As shown in the accompanying drawings, Figures 10-18 Embodiment two of the utility model also discloses a multi-knob control structure, which comprises the control structure disclosed in embodiment one, and the multi-knob control structure further comprises a second knob 5 and a second variable speed piston 6.

[0079] The oil cylinder seat 4 is provided with a second variable speed oil cylinder 42, the second variable speed oil cylinder 42 is distributed in the oil cylinder seat 4 in parallel with the first variable speed oil cylinder 41, and the second variable speed piston 6 is sealingly and movably connected with the second variable speed oil cylinder 42.

[0080] The second knob 5 is rotatably sleeved on the knob seat 1, and the second knob 5 and the first knob 2 are arranged in an axial direction of the knob seat 1, the second knob 5 is movably connected with the second variable speed piston 6, and rotating the second knob 5 can drive the variable speed piston to move in the axial direction of the second variable speed oil cylinder 42.

[0081] The connection mode of the second knob 5 and the second variable speed piston 6 in the embodiment is the same as that of the first knob 2 and the first variable speed piston 3 in embodiment one, and details are not repeated here, the second knob 5 and the first knob 2 are distributed in parallel, so as to provide multiple variable speed adjustment options for users, and the variable speed adjuster of the bicycle with different variable speed adjustment options; the lengths of the second knob 5 and the first knob 2 in the embodiment are different, so that the users can distinguish the two knobs in hand feeling and realize control adjustment of different knobs. The second variable speed oil cylinder 42 is arranged in the oil cylinder seat 4 in the embodiment, is connected with the variable speed adjuster of the bicycle through an oil pipe, and the liquid in the second variable speed oil cylinder 42 is extruded by the second variable speed piston 6 controlled by the second knob 5, so as to realize multiple variable speed adjustment different from the variable speed adjustment of the first knob 2. It should be noted that in other embodiments, a multi-knob control structure comprising a third knob, a fourth knob and the like can also be arranged, and the embodiment will not be repeated here.

[0082] Referring to the accompanying drawings, Figure 12 The multi-knob control structure further comprises a second roller 62 and a second connecting pin 60.

[0083] The side wall of the knob seat 1 and the side wall of the fixed tube 7 are provided with second guide holes 12, the inner side wall of the second knob 5 is further provided with a second inclined sliding groove 50, one end of a second connecting pin 60 is connected with the second variable speed piston 6, the other end of the second connecting pin 60 passes through the second guide hole 12 and is connected with a second roller 62, the second roller 62 is arranged in the second inclined sliding groove 50 and can slide along the length direction of the second inclined sliding groove 50; the length of the second guide hole 12 is not less than the maximum movement stroke of the second connecting pin 60. The second inclined sliding groove 50 in the second knob 5 of the embodiment drives the second variable speed piston 6 through the second roller 62 and the second connecting pin 60, and the driving idea is consistent with the corresponding structure in the first embodiment, and the difference lies in that the inclination degree of the second inclined sliding groove 50 can be consistent with or inconsistent with the inclination degree of the first inclined sliding groove 20, and can be set according to the actual variable speed adjustment requirement.

[0084] In order to limit the gear position of the second knob 5, in the embodiment, the outer side wall of the knob seat 1 is provided with a second positioning sliding groove 14 along the circumferential direction, the bottom of the second positioning sliding groove 14 is provided with a plurality of second positioning holes 140, the second knob 5 is provided with a second positioning pin 51, the end of the second positioning pin 51 is provided with a second wave bead 510 which can be elastically compressed, and the second wave bead 510 can be clamped into the second positioning hole 140 when the second knob 5 rotates. In the embodiment, the number of the second positioning holes 140 can be consistent with or inconsistent with the number of the first positioning holes 130 in the first embodiment, and is set according to the stroke of the second variable speed piston 6.

[0085] In order to facilitate assembly, the second knob 5 of the embodiment adopts the same structure as the first knob 2 in the first embodiment, and specifically, the outer wall of the knob seat 1 is provided with a second annular groove 102, the second annular groove 102 and the first annular groove 101 are arranged in the axial direction of the knob seat 1; the second knob 5 comprises a third inner half ring 521, a fourth inner half ring 522, a second outer ring 53, a second clamping spring 54 and a second anti-skid sleeve 55; the third inner half ring 521 and the fourth inner half ring 522 are spliced to form a second inner ring 52, the second inner ring 52 is installed on the second annular groove 102 through the second clamping spring 54, and the second annular groove 102 is used to limit the axial movement of the first inner ring 22; the second inclined sliding groove 50 is arranged in the inner wall of the second inner ring 52, the second positioning pin 51 is connected to the side wall of the first inner ring 22, and the outer wall of the second inner ring 52 is provided with a second limiting groove 520 extending in the axial direction; the inner wall of the second outer ring 53 is provided with a second limiting block 530 matched with the second limiting groove 520, the second outer ring 53 is sleeved on the second inner ring 52, and the second limiting block 530 and the second limiting groove 520 are matched to limit the circumferential rotation of the variable speed outer ring; the second anti-skid sleeve 55 is sleeved on the second knob 5.

[0086] It should be noted that the second variable piston 6 is only distinguished from the first variable piston 3 in length to accommodate the axially distributed first knob 2 and second knob 5, and the rest of the structure of the second variable piston 6 is consistent with the first variable piston 3.

[0087] In other embodiments, a bicycle is also provided, comprising the multi-knob control structure described above.

[0088] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The preferred embodiments of the present application are shown 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 applied to 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 first knob, a first variable-speed piston and a cylinder seat; The cylinder seat is mounted inside a fixed tube, the cylinder seat is provided with a first variable-speed cylinder, and the first variable-speed piston is sealingly and movably connected to the first variable-speed cylinder; The knob seat is sleeved on the fixed tube; The first knob is rotatably sleeved on the knob seat, the first knob is movably connected to the first variable-speed piston, and rotating the first knob can drive the variable-speed piston to move along the axial direction of the first variable-speed cylinder.

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

3. The control structure of claim 2, wherein, The outer side wall of the knob seat is provided with a first positioning sliding groove along the circumferential direction thereof, the bottom of the first positioning sliding groove is provided with a plurality of first positioning holes, the first knob is provided with a first positioning pin, the end of the first positioning pin is provided with a first wave bead capable of being elastically compressed, and when the first knob rotates, the first wave bead can be clamped into the first positioning hole.

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

5. The control structure of claim 3, wherein, The first variable-speed piston comprises a push rod, a sealing column and an outer connecting pipe, the push rod is provided with an oil injection hole penetrating in the axial direction, one end of the push rod is provided with a piston part matched with the first variable-speed cylinder, the other end of the push rod is connected to the outer connecting pipe, the outer connecting pipe is connected to the first connecting pin, and the sealing column is embedded at the end of the oil injection hole away from the first variable-speed cylinder.

6. A multi-knob control structure comprising the control structure of any one of claims 1-5, wherein, The multi-knob control structure further comprises a second knob and a second variable-speed piston; The cylinder seat is provided with a second variable-speed cylinder, the second variable-speed cylinder is distributed in the cylinder seat in parallel with the first variable-speed cylinder, and the second variable-speed piston is sealingly and movably connected to the second variable-speed cylinder; The second knob is rotatably sleeved on the knob seat, the second knob is arranged in parallel with the first knob along the axial direction of the knob seat, the second knob is movably connected to the second variable-speed piston, and rotating the second knob can drive the variable-speed piston to move along the axial direction of the second variable-speed cylinder.

7. The multi-knob control structure of claim 6, wherein, The multi-knob control structure further comprises a second roller and a second connecting pin; The side wall of the knob seat and the side wall of the fixed tube are provided with second guide holes, the inner side wall of the second knob is further provided with a second inclined sliding groove, one end of the second connecting pin is connected with the second variable speed piston, and the other end of the second connecting pin is connected with the second roller through the second guide hole, the second roller is arranged in the second inclined sliding groove and can slide along the length direction of the second inclined sliding groove; the length of the second guide hole is not less than the maximum movement stroke of the second connecting pin.

8. The multi-knob control structure of claim 7, wherein, The outer side wall of the knob seat is provided with a second positioning sliding groove along the circumferential direction of the knob seat, the bottom of the second positioning sliding groove is provided with a plurality of second positioning holes, the second knob is provided with a second positioning pin, the end of the second positioning pin is provided with a second wave bead capable of being elastically compressed, and when the second knob rotates, the second wave bead can be clamped into the second positioning hole.

9. The multi-knob control structure of claim 8, wherein, The outer wall of the knob seat is provided with a second annular groove, the second annular groove is arranged in the axial direction of the knob seat and is spaced from the first annular groove; the second knob comprises a third inner half ring, a fourth inner half ring, a second outer ring, a second snap spring and a second anti-skid sleeve; The third inner half ring and the fourth inner half ring are spliced to form a second inner ring, the second inner ring is installed on the second annular groove through the second snap spring, and the second annular groove is used for limiting the axial movement of the first inner ring; The second inclined sliding groove is arranged in the inner wall of the second inner ring, the second positioning pin is connected to the side wall of the first inner ring, and the outer wall of the second inner ring is provided with a second limiting groove extending in the axial direction of the second inner ring; The inner wall of the second outer ring is provided with a second limiting block matched with the second limiting groove, the second outer ring is sleeved on the second 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 second anti-skid sleeve is sleeved on the second outer ring.

10. A bicycle characterized in that, The multi-knob control structure comprises the multi-knob control structure.

Images