Brake and speed change integrated handlebar and bicycle

Abstract

The utility model relates to the technical field of bicycles, and particularly discloses a brake and speed change integrated handlebar and a bicycle, the brake and speed change integrated handlebar comprises a brake knob seat, a speed change knob, a brake handle, a connecting cover, a speed change piston, a brake piston and an oil cylinder seat; the oil cylinder base provided with the brake oil cylinder and the speed change oil cylinder is fixed in the handlebar, the internal space of the handlebar is reasonably utilized, the structure is not prone to being polluted by the outside, and the outside of the handlebar is easy to clean. The brake and speed change integrated handlebar with the brake adjustment function and the speed change adjustment function is installed at the two ends of the handlebar, so that the two ends of the handlebar of the bicycle have the brake adjustment function and the speed change adjustment function, the requirement that the left hand and the right hand of a user can be adjusted is met, and the application range of the bicycle with the handlebar is expanded.

Description

TECHNICAL FIELD

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

[0002] The existing bicycle realizes the oil brake effect on the wheel by setting brake handle, oil cylinder, oil pipe and other structures on the handlebar, based on this, the speed regulation structure is set on the handlebar, and the speed regulation on the bicycle is realized through the speed regulation box connected with the oil pipe and installed on the frame, however, in order to avoid the problem that the oil pipe and other structures are exposed and are easy to be contaminated, the oil brake and the speed regulation structure are selected to be set on the left handle and the right handle of the handlebar under the comprehensive consideration of the space condition of the handlebar of the existing bicycle, the mode cannot meet the demand of the user that the left hand and the right hand need to be speed regulated, how to realize the oil brake and the speed regulation of the left handle and the right handle under the premise that the regulation structure such as the oil pipe and the oil cylinder is not exposed becomes a problem to be solved urgently. SUMMARY

[0003] Therefore, the utility model provides a brake and speed regulation integrated handlebar and bicycle for solving the technical problems in the background art.

[0004] In order to achieve one or part or all of the above purposes or other purposes, the utility model provides a brake and speed regulation integrated handlebar, which comprises a brake knob seat, a speed regulation knob, a brake handle, a connecting cover, a speed regulation piston, a brake piston and an oil cylinder seat.

[0005] The oil cylinder seat is fixed in the handlebar, the speed regulation oil cylinder and the brake oil cylinder are arranged in the oil cylinder seat, the speed regulation piston is sealingly and movably connected with the speed regulation oil cylinder, and the brake piston is sealingly and movably connected with the brake oil cylinder.

[0006] The brake knob seat is sleeved on the handlebar, the connecting cover is fixed on the brake knob seat, the connecting cover is provided with a brake connecting rod which can swing, one end of the brake connecting rod extends into the brake knob seat and is movably connected with the brake piston.

[0007] The brake handle comprises a connecting part and a handle part, one end of the connecting part is hinged with the brake connecting rod, the other end of the connecting part is hinged with the connecting cover and connected with the handle part, the handle part can drive the brake connecting rod to swing and drive the brake piston to move along the axial direction of the brake oil cylinder.

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

[0009] Preferably, the brake handle further comprises a brake bearing and a return spring.

[0010] The brake bearing is installed at one end of the brake piston extending out of the brake oil cylinder.

[0011] The side wall of the brake knob seat and the side wall of the handlebar are provided with brake guide holes, one end of the brake lever is connected to the connecting part of the brake handle, and the other end of the brake lever abuts against the brake bearing after passing through the brake guide hole, and the length of the brake guide hole is not less than the maximum swing stroke of the brake lever.

[0012] The reset spring is arranged in the brake oil cylinder, and the reset spring is connected to the bottom of the brake oil cylinder and the brake piston; the reset spring is used to drive the brake piston to move towards the brake lever.

[0013] Preferably, the brake connecting rod comprises a first connecting rod and a second connecting rod.

[0014] The first connecting rod and the second connecting rod are fixedly connected to each other and have an included angle, and the connection part of the first connecting rod and the second connecting rod is hingedly connected to the connecting cover, the first connecting rod is hingedly connected to the connecting part of the brake handle, and the second connecting rod extends into the brake knob seat and is connected to the brake bearing.

[0015] A transmission hole is arranged on the first connecting rod along the length direction of the first connecting rod, one end of the brake handle is provided with a transmission pin, and the transmission pin penetrates through the transmission hole and can slide along the length direction of the transmission hole.

[0016] Preferably, the brake knob seat further comprises a transmission bearing and a connecting pin.

[0017] The side wall of the brake knob seat and the side wall of the handlebar are provided with transmission guide holes, the inner side wall of the transmission knob is further provided with an inclined sliding groove, one end of the connecting pin is connected to the transmission piston, and the other end of the connecting pin is connected to the transmission bearing after penetrating through the transmission guide hole, the transmission bearing is arranged in the inclined sliding groove and can slide along the length direction of the inclined sliding groove; and the length of the transmission guide hole is not less than the maximum movement stroke of the connecting pin.

[0018] Preferably, the outer side wall of the brake knob seat is provided with a positioning sliding groove along the circumferential direction of the outer side wall, the bottom of the positioning sliding groove is provided with a plurality of positioning holes, the transmission knob is provided with a positioning pin, the end part of the positioning pin is provided with an elastically compressible wave bead, and when the transmission knob rotates, the wave bead can be clamped into the positioning hole.

[0019] Preferably, the outer wall of the brake knob seat is provided with two limiting convex rings arranged at intervals; the transmission knob comprises a first inner half ring, a second inner half ring, an outer ring, a snap spring and a transmission sleeve.

[0020] The first inner half ring and the second inner half ring are spliced to form an inner ring, the inclined sliding groove is arranged on the inner side wall of the inner ring, and the connecting pin is connected to the side wall of the inner ring; the outer wall of the inner ring is provided with a circumferentially surrounding snap spring groove, and the outer wall of the inner ring is provided with an axially extending limiting groove.

[0021] The inner ring is sleeved on the outer wall of the brake knob seat and is located between the two limiting convex rings, and the two limiting convex rings limit the axial displacement of the inner ring; the clamping spring fixes the inner ring on the outer wall of the brake knob seat by clamping in the clamping spring groove.

[0022] The inner wall of the outer ring is provided with a limiting block corresponding to the limiting groove, and the outer ring is sleeved on the outer wall of the inner ring.

[0023] The speed change outer sleeve is sleeved with the speed change knob.

[0024] Preferably, the oil cylinder seat is provided with a speed change output oil cylinder and a brake output oil cylinder, the oil cylinder seat is provided with a first oil passing hole communicating the speed change output oil cylinder and the speed change oil cylinder, and a second oil passing hole communicating the brake output oil cylinder and the brake oil cylinder, and the speed change output oil cylinder, the speed change oil cylinder, the brake output oil cylinder and the brake oil cylinder are distributed side by side in the oil cylinder seat.

[0025] Preferably, the speed change output oil cylinder and the brake output oil cylinder are each provided with an output oil port, and the speed change oil cylinder and the brake oil cylinder are each provided with an oil injection pipe.

[0026] Preferably, the oil cavity sealing plate is made of elastic material, and the oil cavity sealing cover is provided with air holes.

[0027] 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 oil cavity sealing plate covers and seals the balance oil groove, the oil cavity sealing cover covers the balance oil groove, so that a balance oil cavity is formed between the balance oil groove and the oil cavity sealing cover, and 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.

[0028] A bicycle comprises the brake and speed change integrated handle mentioned above.

[0029] The embodiment of the utility model has the following beneficial effects:

[0030] After the brake and speed change integrated handle is adopted, the oil cylinder seat provided with the brake oil cylinder and the speed change oil cylinder is fixed in the handlebar, the internal space of the handlebar is reasonably utilized, and such structure is not easy to be polluted from outside, and the outside of the handlebar is easy to clean; the brake and speed change integrated handle with brake adjustment and speed change adjustment is installed at both ends of the handlebar, so that both ends of the handlebar of the bicycle have brake adjustment and speed change adjustment, the demand that both left and right hands of the user can be adjusted is met, and the application range of the bicycle with the handlebar is expanded. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0032] Among them:

[0033] Figure 1 It is the overall structure explosion map of the brake and speed change integrated handle in the present application.

[0034] Figure 2 It is Figure 1 The enlarged view of C part in the above.

[0035] Figure 3 It is the front projection view of the brake and speed change integrated handle in the present application.

[0036] Figure 4 It is Figure 3 The A-A sectional view in the above.

[0037] Figure 5 It is Figure 3 The B-B sectional view in the above.

[0038] Figure 6 It is the separation schematic view of the brake knob seat and the speed change knob in the present application.

[0039] Figure 7 It is the separation schematic view of the oil cylinder seat in the present application.

[0040] Figure 8 It is the structure schematic view of the brake knob seat in the present application.

[0041] Figure 9 It is the assembly schematic view of the oil cylinder seat, the speed change piston and the speed change knob in the present application.

[0042] Figure 10 It is the structure schematic view of the inner ring in the present application.

[0043] Figure 11 It is the three-dimensional sectional view of the oil cylinder seat in the present application.

[0044] Figure 12 It is Figure 4 The enlarged view of D part in the above.

[0045] Reference signs:

[0046] 1 brake knob seat, 10 brake guide hole, 11 speed change guide hole, 12 limiting convex ring, 13 positioning sliding groove, 130 positioning hole,

[0047] 2 variable speed knob, 20 inner ring, 201 first inner half ring, 202 second inner half ring, 200 snap spring slot, 21 outer ring, 210 limit block, 22 inclined sliding slot, 23 positioning pin, 230 wave bead, 24 variable speed sleeve, 25 snap spring,

[0048] 3 brake handle, 30 transmission pin, 31 return torsional spring, 32 connecting part, 33 handle part,

[0049] 4 connecting cover, 40 brake connecting rod, 401 first connecting rod, 401a transmission hole, 402 second connecting rod,

[0050] 5 variable speed piston, 50 variable speed bearing, 51 connecting pin,

[0051] 6 brake piston, 60 brake bearing, 61 return spring

[0052] 7 oil cylinder seat, 70 variable speed oil cylinder, 700 first oil passing hole, 71 brake oil cylinder, 710 second oil passing hole, 72 variable speed output oil cylinder, 73 brake output oil cylinder, 732 output oil port, 74 oil injection pipe, 75 balance oil groove, 750 oil passing hole,

[0053] 80 oil cavity sealing plate, 81 oil cavity sealing cover, 9 handlebar. DETAILED DESCRIPTION

[0054] 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 embodiments of the application will be described in detail with reference to drawings, of which:

[0055] 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 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 embodiments. It is explicitly contemplated that embodiments described herein can be combined with each other.

[0056] In order to make the technical personnel in the art better understand the application scheme, the technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings.

[0057] As shown in the drawings,Figures 1-12 The embodiment provided by the utility model shows.

[0058] The utility model discloses a brake and speed change integrated handle, which comprises a brake knob seat 1, a speed knob 2, a brake handle 3, a connecting cover 4, a speed piston 5, a brake piston 6 and an oil cylinder seat 7.

[0059] The oil cylinder seat 7 is fixed in the handlebar 9, and the speed cylinder 70 and the brake cylinder 71 are arranged in the oil cylinder seat 7; the speed piston 5 is sealingly and movably connected to the speed cylinder 70, and the brake piston 6 is sealingly and movably connected to the brake cylinder 71.

[0060] The brake knob seat 1 is sleeved on the handlebar 9; the connecting cover 4 is fixed on the brake knob seat 1, and the connecting cover 4 is provided with an oscillatable brake connecting rod 40, one end of the brake connecting rod 40 extends into the brake knob seat 1 and is movably connected to the brake piston 6.

[0061] The brake handle 3 comprises a connecting portion 32 and a handle portion 33; one end of the connecting portion 32 is hingedly connected to the brake connecting rod 40, the other end of the connecting portion 32 is hingedly connected to the connecting cover 4 and connected to the handle portion 33; the handle portion 33 can drive the brake connecting rod 40 to oscillate and drive the brake piston 6 to move along the axial direction of the brake cylinder 71.

[0062] The speed knob 2 is rotatably sleeved on the brake knob seat 1, and the speed knob 2 is movably connected to the speed piston 5; rotating the speed knob 2 can drive the speed piston 5 to move along the axial direction of the speed cylinder 70.

[0063] Specifically, the brake knob seat 1 is a tubular structure, the handlebar 9 of the bicycle includes a cross pipe for connecting the front fork pipe of the bicycle and handlebars connected at both ends of the cross pipe, the handlebars are held by the user, wherein the handlebars are butt jointed with the cross pipe and fixed by the brake knob seat 1, which facilitates the installation of the oil cylinder seat 7 and the oil pipe in the handlebar 9. In actual application, the brake and gear integrated handlebar is installed at the handlebars at both ends of the cross pipe, so that both ends of the handlebar 9 of the bicycle have brake adjustment and gear adjustment, meeting the needs of left and right hand adjustment of the user and expanding the application range of the bicycle with the handlebar. In the embodiment, the oil cylinder seat 7 is provided with a connecting lug, the brake knob seat 1 and the side wall of the handlebar 9 are both provided with through holes, the brake knob seat 1 and the connecting lug are connected by locking screws, and the oil cylinder seat 7 is fixed in the handlebar 9. In order to fully utilize the internal space of the handlebar 9 and ensure the volume of the brake cylinder 71 and the gear cylinder 70 and the repeated piston movement of the brake piston 6 and the gear piston 5, the brake cylinder 71 and the gear cylinder 70 are designed as columnar cylinders in the embodiment, and the oil cylinder seat 7 is correspondingly a strip structure, that is, the internal space of the handlebar 9 is reasonably utilized, and the normal operation of the brake piston 6 and the gear piston 5 is ensured. The oil cylinder seat 7, the oil pipe, the brake piston 6 and the gear piston 5 are arranged in the handlebar 9, so that such structure is not easily contaminated from the outside, and the outside of the handlebar 9 is easy to clean.

[0064] In order to facilitate the brake adjustment to be more simple and light, the connecting cover 4 is installed on the outer wall of the brake knob seat 1, the brake connecting rod 40 is arranged in the connecting cover 4, one end of the brake connecting rod 40 penetrates the brake knob seat 1 and the handlebar 9 in sequence, and the end of the brake connecting rod 40 is connected with the brake piston 6. The brake lever 3 composed of the connecting part 32 and the handle part 33 is connected to drive the brake connecting rod 40, specifically, one end of the connecting part 32 is movably connected with the brake connecting rod 40, the other end of the connecting part 32 is hingedly connected with the connecting cover 4, and the length of the handle part 33 is greater than the length of the connecting part 32, forming a lever structure. When the handle part 33 is pressed, the direction of the end of the connecting part 32 connected with the handle part 33 is changed, thereby driving the brake connecting rod 40 to swing. Specifically, one end of the brake connecting rod 40 outside the handlebar 9 swings away from the brake piston 6, and the other end of the brake connecting rod 40 inside the handlebar 9 swings towards the brake piston 6. The pushing force of the end of the brake connecting rod 40 drives the brake piston 6 to move in the brake cylinder 71 and press the liquid in the brake cylinder 71, so as to achieve the purpose of controlling the brake. Through the conversion of the brake lever 3 and the brake connecting rod 40 twice, the original force perpendicular to the axial direction of the handlebar 9 is converted into the same force as the axial direction of the handlebar 9, so as to drive the brake piston 6. A reset torsional spring 31 or a reset spring plate and other auxiliary structures can be arranged at the hinge connection between the brake lever 3 and the connecting cover 4 to reset the brake lever 3, improve the stability between the brake lever 3 and the connecting cover 4, and facilitate the user to release the brake effect. For speed adjustment, the speed knob 2 is movably sleeved on the brake knob seat 1. Specifically, the brake knob seat 1 is provided with two limiting convex rings 12 at the end away from the connecting cover 4, and the speed knob 2 is arranged between the two limiting convex rings 12 to avoid the speed knob 2 from being separated from the brake knob seat 1 in the axial direction. The speed knob 2 is movably connected with the speed piston 5. When the speed knob 2 is rotated, the speed piston 5 can be pressed down to press the liquid in the speed cylinder 70, so as to achieve the purpose of controlling the speed, for example, the speed knob 2 has an inclined side wall extending into the brake knob seat 1, the inclined side wall abuts against the speed piston 5, and the speed knob 2 can press down the speed piston 5 when it is rotated.

[0065] As shown in the accompanying drawings Figure 11As shown, the oil cylinder seat 7 is provided with a gear output oil cylinder 72 and a brake output oil cylinder 73, the oil cylinder seat 7 is provided with a first oil passing hole 700 communicating the gear output oil cylinder 72 and the gear oil cylinder 70, and a second oil passing hole 710 communicating the brake output oil cylinder 73 and the brake oil cylinder 71, the gear output oil cylinder 72, the gear oil cylinder 70, the brake output oil cylinder 73 and the brake oil cylinder 71 are distributed side by side in the oil cylinder seat 7, specifically, the gear output oil cylinder 72 and the brake output oil cylinder 73 are both provided with an output oil port 732 for connecting an oil pipe, so as to facilitate the liquid in the oil cylinder seat 7 to be pressed by the piston and then reach the corresponding regulator for working; from the axial cross section of the oil cylinder seat 7, the gear output oil cylinder 72, the gear oil cylinder 70, the brake output oil cylinder 73 and the brake oil cylinder 71 are distributed in a circle, and the multiple oil cylinders distributed side by side fully utilize 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 fully utilizes the advantage of the long axial space of the handlebar 9; in the embodiment, the first oil passing hole 700 and the second oil passing hole 710 are both arranged at the bottom position away from the corresponding piston, for example, the first oil passing hole 700 is arranged at the bottom of the gear oil cylinder 70 away from the gear piston 5, so that when the gear piston 5 moves downward in the gear oil cylinder 70, the gear piston 5 can press the liquid, so that the liquid enters the gear output oil cylinder 72 through the first oil passing hole 700, and in the embodiment, the output oil port 732 is arranged at one end away from the first oil passing hole 700 or the second oil passing hole 710, specifically, the gear piston 5, the brake piston 6 and the output oil port 732 are arranged at the same end, which facilitates driving the gear piston 5 or the brake piston 6, and facilitates connecting the oil pipe with the oil cylinder seat 7, avoids the oil pipe winding, improves the installation rationality of the oil cylinder seat 7 in the handlebar 9, and reduces the interference between the parts; in addition, the gear oil cylinder 70 and the brake oil cylinder 71 are both provided with an oil injection pipe 74, specifically, the two oil injection pipes 74 are connected at the end of the gear oil cylinder 70 and the brake oil cylinder 71, and the oil injection pipe 74 is distributed at both ends of the oil cylinder seat 7 with the oil pipe in the handlebar 9, that is, the other end of the oil injection pipe 74 can pass through the handlebar and be fixed at the end of the handlebar, and a sealing cover can be arranged at the end of the oil injection pipe 74, so that 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 6 moves in the brake oil cylinder 71 to press the liquid in the brake oil cylinder 71 to the brake output oil cylinder 73 through the second oil passing hole 710, and the brake output oil cylinder 73 delivers the liquid to the brake of the bicycle through the output oil port 732 and the oil pipe to achieve the brake purpose; the gear piston 5 moves to achieve the gear shifting purpose in the same way as the brake piston 6, which will not be described herein.

[0066] As shown in the accompanying drawings, Figure 4 The brake gear integrated handle further comprises a brake bearing 60 and a return spring 61.

[0067] The brake bearing 60 is installed at one end of the brake piston 6 extending out of the brake oil cylinder 71.

[0068] The side wall of the brake knob seat 1 and the side wall of the handlebar 9 are provided with brake guide holes 10, one end of a brake lever is connected with the brake handle 3, the other end of the brake lever passes through the brake guide hole 10 and abuts against the brake bearing 60, the length of the brake guide hole 10 is not less than the maximum swing stroke of the brake lever;

[0069] The reset spring 61 is arranged in the brake oil cylinder 71 and is connected with the bottom of the brake oil cylinder 71 and the brake piston 6; the reset spring 61 is used to drive the brake piston 6 to move towards the brake lever.

[0070] In the embodiment, the driving is realized by the brake connecting rod 40 and the brake bearing 60 on the brake piston 6 which are separated from each other, the respective installation of the brake connecting rod 40 and the brake piston 6 is facilitated, and the reset spring 61 arranged in the brake oil cylinder for resetting after the brake piston 6 is pressed down, so that the brake piston 6 can be quickly reset after being pressed down by the swing of the brake connecting rod 40 and the brake is released; when the user tightly holds the handle part 33, one end of the brake connecting rod 40 is always in the state of swinging and pressing the brake bearing 60, at this time, the brake piston 6 presses the liquid in the brake oil cylinder 71 to achieve the purpose of braking, and the reset spring 61 is in the compressed energy storage state; after the user releases the force on the handle part 33, the reset spring 61 drives the brake piston 6 to reset to release the brake; in the embodiment, the brake bearing 60 with smooth outer wall is adopted, which can reduce the friction between the brake connecting rod 40 and the brake bearing 60 and improve the transmission effect between the brake connecting rod 40 and the brake bearing 60; in other embodiments, the brake bearing 60 can also be selected as a rotatable cylindrical structure such as a roller, which will not be described in detail.

[0071] Further, the brake connecting rod 40 of the embodiment comprises a first connecting rod 401 and a second connecting rod 402; the first connecting rod 401 and the second connecting rod 402 are fixedly connected to each other and have an included angle, and the connection between the first connecting rod 401 and the second connecting rod 402 is hinged to the connecting cover 4, the first connecting rod 401 is used for being hinged to the connecting portion 32 of the brake handle 3, and the second connecting rod 402 extends into the brake knob seat 1 and is connected to the brake bearing 60; a transmission hole 401a is arranged on the first connecting rod 401 along the length direction of the first connecting rod 401, one end of the connecting portion 32 is provided with a transmission pin 30, the transmission pin 30 penetrates through the transmission hole 401a and can slide along the length direction of the transmission hole 401a; specifically, the included angle between the first connecting rod 401 and the second connecting rod 402 is 90 degrees, that is, the first connecting rod 401 and the second connecting rod 402 are perpendicular to each other, after assembly, the first connecting rod 401 is arranged outside the brake knob seat 1, and the first connecting rod 401 is parallel to the axial direction of the brake knob seat 1, and the second connecting rod 402 abuts against the brake bearing 60 after penetrating through the brake guide hole 10, the transmission pin 30 on the connecting portion 32 is connected to the transmission hole 401a on the first connecting rod 401, when the handle portion 33 is not subjected to external force, the transmission pin 30 is located at the end of the transmission hole 401a away from the second connecting rod 402, after the user presses the handle portion 33, the transmission pin 30 slides along the length direction of the transmission hole 401a and drives the first connecting rod 401 to swing away from the outer wall of the brake knob seat 1, at the same time, the first connecting rod 401 swings towards the brake bearing 60, and further squeezes the brake piston 6 to move towards the second oil hole 710, so as to squeeze the liquid in the brake oil cylinder 71.

[0072] As shown in the accompanying drawings Figure 8 and the accompanying drawings Figure 9 , the speed-changing brake integrated handle further comprises a speed-changing bearing 50 and a connecting pin 51.

[0073] The side wall of the brake knob seat 1 and the side wall of the handlebar 9 are both provided with a speed-changing guide hole 11, the inner side wall of the speed-changing knob 2 is further provided with an inclined sliding groove 22, one end of the connecting pin 51 is connected to the speed-changing piston 5, and the other end of the connecting pin 51 penetrates through the speed-changing guide hole 11 and is connected to the speed-changing bearing 50, the speed-changing bearing 50 is arranged in the inclined sliding groove 22 and can slide along the length direction of the inclined sliding groove 22; the length of the speed-changing guide hole 11 is not less than the maximum movement stroke of the connecting pin 51.

[0074] In the embodiment, the inner wall of the speed-changing knob 2 is connected to the speed-changing piston 5 through the inclined sliding groove 22 and the speed-changing bearing 50 and the connecting pin 51, because the inclined sliding groove 22 is an arc-shaped groove structure surrounding the inner wall of the speed-changing knob 2, when the speed-changing knob 2 rotates, the speed-changing bearing 50 can roll along the length direction of the inclined sliding groove 22, and because the two ends of the inclined sliding groove 22 have a height difference, when the speed-changing knob 2 rotates, the speed-changing piston 5 is driven to move upwards or downwards, so as to achieve the purpose of controlling the speed change.

[0075] As shown in the accompanying drawingsFigure 6 and the accompanying drawings Figure 8 As shown, the outer wall of the brake knob seat 1 is provided with a positioning sliding groove 13 along its circumference, and the bottom of the positioning sliding groove 13 is provided with a plurality of positioning holes 130. The variable speed knob 2 is provided with a positioning pin 23, and the end of the positioning pin 23 is provided with an elastically compressible wave bead 230. When the knob is rotated, the wave bead 230 can be clamped into the positioning hole 130. A plurality of positioning holes 130 are arranged at intervals along the positioning sliding groove 13, and the spacing of the plurality of positioning holes 130 can be set according to the actual speed regulation requirement. A plurality of different positioning holes 130 represent different depths of the variable speed piston 5 extruding the liquid in the variable speed oil cylinder 70. In actual use, the user rotates the variable speed knob 2 so that the wave bead 230 can be clamped into the corresponding positioning hole 130, thereby realizing variable speed regulation of different gears. Since the wave bead 230 has a metal collision sound or a feedback of a reaction force when clamped into the positioning hole 130, the user has a more obvious hand feeling feedback when rotating the variable speed knob 2, thereby enhancing the user's experience and accuracy of speed regulation. In other embodiments, gear position indicators can also be provided on the outer wall of the brake knob seat 1, and corresponding indication arrows can be provided on the outer wall of the variable speed knob 2, thereby improving the accuracy and readability of the user's adjustment.

[0076] In some embodiments, the outer wall of the brake knob seat 1 is provided with two spaced limiting convex rings 12; the variable speed knob 2 includes a first inner half ring 201, a second inner half ring 202, an outer ring 21, a snap spring 25, and a variable speed sleeve 24.

[0077] The first inner half ring 201 and the second inner half ring 202 are spliced to form an inner ring 20, and the inclined sliding groove 22 is formed in the inner side wall of the inner ring 20. The connecting pin 51 is connected to the side wall of the inner ring 20. The outer wall of the inner ring 20 is provided with a circumferential snap spring groove 200, and the outer wall of the inner ring 20 is provided with an axially extending limiting groove. The inner ring 20 is sleeved on the outer wall of the brake knob seat 1 and is located between the two limiting convex rings 12, and the two limiting convex rings 12 limit the axial displacement of the inner ring 20. The snap spring 25 is clamped in the snap spring groove 200 to fix the inner ring 20 to the outer wall of the brake knob seat 1. The inner wall of the outer ring 21 is provided with a limiting block 210 corresponding to the limiting groove, and the outer ring 21 is sleeved on the outer wall of the inner ring 20. The variable speed sleeve 24 is sleeved on the variable speed knob 2.

[0078] Specifically, the speed change knob 2 is divided into two main parts of an inner ring 20 and an outer ring 21, and the inner ring 20 is divided into a first inner half ring 201 and a second inner half ring 202, facilitating the installation of the speed change knob 2 on the brake knob seat 1, and then the inner ring 20 is fastened between the two limiting convex rings 12 of the brake knob seat 1 in the form of a clasp spring 25, achieving axial and radial fixation, and then the outer ring 21 is sleeved on the outer wall of the inner ring 20, so that the positioning pin 23 is not exposed, improving the structural stability; the shape of the limiting groove corresponds to the limiting block 210 in the form of a strip-shaped groove, which is not shown in the drawings of the embodiment, and the cooperation between the limiting block 210 and the limiting groove enables the outer ring 21 and the inner ring 20 to be circumferentially fixed, so that the user can rotate the outer ring 21 to drive the inner ring 20 to rotate together, thereby achieving the driving of the speed change piston 5; in the embodiment, the speed change sleeve 24 can be fixedly connected to the outer wall of the outer ring 21, which can be made of rubber material, and anti-slip lines are arranged on the outer wall of the speed change sleeve 24, improving the holding comfort and control effect of the user.

[0079] As shown in the accompanying drawings Figure 7 and the accompanying drawings Figure 9 , the brake and speed change integrated handle further includes an oil cavity sealing plate 80 made of elastic material and an oil cavity sealing cover 81 with air holes;

[0080] 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 71, the oil cavity sealing plate 80 covers and seals the balance oil groove 75, the oil cavity sealing cover 81 covers the balance oil groove 75, so that the balance oil cavity is formed between the balance oil groove 75 and the oil cavity sealing cover 81; the distance between the oil passing hole 750 and the second oil passing hole 710 is not less than the distance between the end of the brake piston 6 and the second oil passing hole 710 when the brake piston 6 is not subjected to force. Because the brake piston 6 needs to move repeatedly in the brake oil cylinder 71, the temperature in the brake oil cylinder 71 is easily increased, or when the bicycle is used for a long time outside, the temperature in the brake oil cylinder 71 is easily increased, and the above forms are all easy to cause the liquid in the brake oil cylinder 71 to be affected by thermal expansion and cold contraction, the balance oil cavity is arranged, so that the liquid can flow into the balance oil cavity through the oil passing hole 750 or flow back into the brake oil cylinder 71 from the balance oil cavity; specifically, when the brake piston 6 is not subjected to external force and the temperature is suitable, the brake piston 6 is in the initial position, at this time, the outer wall of the end of the brake piston 6 in the brake oil cylinder 71 closes the oil passing hole 750, the liquid in the brake oil cylinder 71 cannot enter the balance oil cavity, and when the brake piston 6 moves to the direction of the second oil passing hole 710, the liquid in the brake oil cylinder 71 moves away from the oil passing hole 750, so the liquid still cannot enter the balance oil cavity, ensuring that the liquid can be squeezed to the brake output oil cylinder 73 when the brake piston 6 moves, realizing the brake effect; on the contrary, after the internal temperature increases, the liquid expands, the brake piston 6 moves away from the second oil passing hole 710, 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, avoiding the explosion caused by the internal expansion of the liquid, and flowing back into the brake oil cylinder 71 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, increasing the volume of the balance oil cavity, and the external oil cavity sealing cover 81 is made of metal material, so that the oil cavity sealing plate 80 is not easily polluted from the outside, and the air holes of the oil cavity sealing cover 81 are beneficial to relieve the air pressure in the balance oil cavity, facilitating the flow of the liquid between the balance oil cavity and the brake oil cylinder 71. It also needs to be said that the same oil passing hole 750 structure can be arranged between the speed change oil cylinder 70 and the balance oil cavity, achieving the same effect, which is not described here.

[0081] In some embodiments, the utility model also provides a bicycle, including the brake and speed change integrated handle of above.

[0082] 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 brake and gear integrated handle, characterized by, The brake knob seat, the gear knob, the brake handle, the connecting cover, the gear piston, the brake piston and the oil cylinder seat are included. The oil cylinder seat is fixed in the handlebar, and the oil cylinder seat is internally provided with a gear oil cylinder and a brake oil cylinder. The brake knob seat is sleeved on the handlebar, the connecting cover is fixed on the brake knob seat, and the connecting cover is provided with an oscillatable brake connecting rod. The brake handle includes a connecting part and a handle part, one end of the connecting part is hinged to the brake connecting rod, the other end of the connecting part is hinged to the connecting cover and connected to the handle part, and the handle part is buckled to drive the brake connecting rod to oscillate and drive the brake piston to move along the axial direction of the brake oil cylinder. The gear knob is rotatably sleeved on the brake knob seat, and the gear knob is movably connected to the gear piston.

2. The brake and shift integrated handle according to claim 1, wherein The brake bearing and the reset spring are further included. The brake bearing is installed at one end of the brake piston extending out of the brake oil cylinder. The side wall of the brake knob seat and the side wall of the handlebar are both provided with brake guide holes, one end of the brake rod is connected to the connecting part of the brake handle, the other end of the brake rod is in abutment with the brake bearing after passing through the brake guide hole, and the length of the brake guide hole is not less than the maximum oscillation stroke of the brake rod. The reset spring is arranged in the brake oil cylinder, and the reset spring is connected to the bottom of the brake oil cylinder and the brake piston.

3. The brake and shift integrated handle according to claim 2, wherein The brake connecting rod includes a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod are fixedly connected to each other and have an included angle, the connection part of the first connecting rod is hinged to the connecting cover, the second connecting rod extends into the brake knob seat and is connected to the brake bearing. The first connecting rod is provided with a transmission hole along the length direction thereof, one end of the connecting part is provided with a transmission pin, and the transmission pin penetrates through the transmission hole and can slide along the length direction of the transmission hole.

4. The brake and shift integrated handle according to claim 3, wherein The gear bearing and the connecting pin are further included. The side wall of the brake knob seat and the side wall of the handlebar are both provided with gear guide holes, the inner side wall of the gear knob is further provided with an inclined sliding groove, one end of the connecting pin is connected to the gear piston, the other end of the connecting pin penetrates through the gear guide hole and is connected to the gear bearing, the gear bearing is arranged in the inclined sliding groove and can slide along the length direction of the inclined sliding groove, and the length of the gear guide hole is not less than the maximum movement stroke of the connecting pin.

5. The brake and shift integrated handle according to claim 4, wherein The outer side wall of the brake knob seat is provided with a positioning sliding groove along the circumferential direction thereof, the positioning sliding groove is provided with a plurality of positioning holes at the bottom thereof, the gear knob is provided with a positioning pin, the end part of the positioning pin is provided with an elastically compressible wave bead, and the wave bead can be clamped into the positioning hole when the gear knob rotates.

6. The brake shift integrated handle according to claim 5, wherein The outer wall of the brake knob seat is provided with two limit convex rings arranged at intervals, and the gear knob includes a first inner half ring, a second inner half ring, an outer ring, a snap spring and a gear outer sleeve. The first inner half ring and the second inner half ring are spliced to form an inner ring, the inclined sliding groove is arranged on the inner side wall of the inner ring, and the connecting pin is connected to the side wall of the inner ring; the outer wall of the inner ring is provided with a circumferentially surrounding snap spring groove, and the outer wall of the inner ring is provided with an axially extending limiting groove; The inner ring is sleeved on the outer wall of the brake knob seat and is located between the two limiting convex rings, and the two limiting convex rings limit the axial displacement of the inner ring; the snap spring fixes the inner ring on the outer wall of the brake knob seat by being clamped in the snap spring groove; The inner wall of the outer ring is provided with a limiting block corresponding to the limiting groove, and the outer ring is sleeved on the outer wall of the inner ring; The speed change outer sleeve is sleeved with the speed change knob.

7. The brake shift integrated handle according to claim 3, wherein The oil cylinder seat is provided with a speed change output oil cylinder and a brake output oil cylinder, the oil cylinder seat is provided with a first oil passing hole communicating the speed change output oil cylinder and the speed change oil cylinder and a second oil passing hole communicating the brake output oil cylinder and the brake oil cylinder, and the speed change output oil cylinder, the speed change oil cylinder, the brake output oil cylinder and the brake oil cylinder are distributed side by side in the oil cylinder seat.

8. The brake shift integrated handle according to claim 7, wherein The speed change output oil cylinder and the brake output oil cylinder are each provided with an output oil port, and the speed change oil cylinder and the brake oil cylinder are each provided with an oil injection pipe.

9. The brake shift integrated handle according to claim 7, wherein Further comprising 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 oil cavity sealing plate covers and seals the balance oil groove, the oil cavity sealing cover covers the balance oil groove, 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 it is not stressed and the second oil passing hole.

10. A bicycle characterized in that, The brake and speed change integrated handle comprises the brake and speed change integrated handle and the brake and speed change integrated handle.

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