Hydraulic control device for a bicycle

By introducing an adapter into the hydraulic control device for bicycles, a non-linear match between the pressing stroke of the control lever component and the piston movement stroke is achieved, solving the problems of long pressing stroke and weak feedback force of the control lever component in the prior art, and improving the braking feel and effect.

CN117341880BActive Publication Date: 2026-02-10HANGZHOU LUNFENG SPORTS TECH CO LTD
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Patent Information

Application Number
CN202311493105.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-10
Publication Date
2026-02-10
Estimated Expiration
2043-11-10

AI Technical Summary

Technical Problem

In existing hydraulic control devices for bicycles, the control lever components have a long pressing stroke, weak feedback force, poor braking feel, and slow braking effect.

Method used

In a hydraulic control device, an adapter is introduced, which is configured between the control lever component and the piston. Through the nonlinear motion trajectory design of the first and second contact parts, the pressing stroke of the control lever component is made smaller than the movement stroke of the piston. The motion trajectory is amplified when driven by the control lever component using the adapter.

Benefits of technology

The pressing stroke of the control lever component during braking has been improved, enhancing the braking feel and effect, and increasing the feedback force.

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Abstract

The application provides a hydraulic control device for bicycle, which is used for controlling the braking of bicycle and comprises a hydraulic generating part and a control lever part, wherein the hydraulic generating part has a hydraulic cylinder and a piston arranged in the hydraulic cylinder, and the control lever part is capable of operating the piston to move along a set axis in the hydraulic cylinder; wherein a connector is arranged between the control lever part and the piston, the control lever part is in contact with the connector through a first contact part, and the piston is in contact with the connector through a second contact part; and during the process that the connector is driven by the control lever part to push the piston to move, at least one stage satisfies the following motion state: the stroke component of the motion track of the first contact part in the direction of the set axis is smaller than the stroke component of the motion track of the second contact part in the direction of the set axis. The hydraulic control device for bicycle provided by the application can improve the pressing stroke of the control lever part during braking, and improve the braking feeling and braking effect.
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Description

Technical Field

[0001] This application relates to the field of bicycle technology, and more particularly to a hydraulic control device for bicycles. Background Technology

[0002] A bicycle hydraulic control device is used to control the hydraulic braking system, thereby braking the bicycle. A bicycle hydraulic control device typically includes a control lever assembly, a hydraulic cylinder, and a piston movably mounted within the hydraulic cylinder. In use, squeezing the control lever assembly pushes the piston within the hydraulic cylinder, causing fluid within the cylinder to flow towards the braking device, thus achieving braking. For example, Chinese invention patent CN103847923B discloses such a control device.

[0003] In this prior art, the distance the control lever moves in the piston's direction of movement is linearly related to the distance the piston moves within the hydraulic cylinder; that is, the distance the control lever moves in the piston's direction of movement determines the distance the piston moves within the hydraulic cylinder. This results in drawbacks during braking, such as a long pressing stroke for the control lever, weak feedback force from the piston, poor braking feel, and slow braking effect.

[0004] Therefore, it is necessary to propose a new technical solution to overcome the above-mentioned shortcomings. Summary of the Invention

[0005] This application provides a hydraulic control device for bicycles, which can improve the pressing stroke of the control lever component during braking, enhance the braking feel and braking effect.

[0006] To achieve the above objectives, this application adopts the following technical solution: a hydraulic control device for bicycles, used to control bicycle braking, the hydraulic control device comprising:

[0007] A hydraulic generating component includes a hydraulic cylinder and a piston disposed in the hydraulic cylinder; and

[0008] The control lever component is capable of operating the piston to move along a set axis within the hydraulic cylinder;

[0009] A connector is provided between the control lever component and the piston. The control lever component contacts the connector through a first contact portion, and the piston contacts the connector through a second contact portion.

[0010] During the process of the adapter being driven by the control lever component to move the piston, there is at least one stage in which the following motion state is satisfied:

[0011] The travel component of the first contact portion's motion trajectory in the direction of the set axis is smaller than the travel component of the second contact portion's motion trajectory in the direction of the set axis.

[0012] Optionally, when the adapter is driven by the control lever component, it can move relative to both the control lever component and the piston.

[0013] Optionally, the adapter has a first contact surface that contacts the control lever component and a second contact surface that contacts the piston, wherein the plane containing the first contact surface is not parallel to the plane containing the second contact surface.

[0014] Optionally, the adapter is a wedge-shaped block.

[0015] Optionally, the control lever component and the adapter, and / or the piston and the adapter, are in rolling contact.

[0016] Optionally, both the adapter and the control lever assembly are pivotally connected to the hydraulic cylinder.

[0017] Optionally, the control lever component includes an operating lever and a pusher, the pusher being pivotally connected to the operating lever.

[0018] Optionally, the control lever component includes a first elastic element configured to elastically push against the push member to keep it relatively stationary with respect to the operating lever.

[0019] Optionally, the pressing member includes a roller configured to roll in contact with the adapter during the process of the pressing member pressing the adapter.

[0020] Optionally, an adjusting member is further provided between the operating lever and the pushing member, the adjusting member being configured to adjust the relative angle between the pushing member and the operating lever.

[0021] Optionally, the adjusting element is an adjusting screw.

[0022] Optionally, the operating lever is pivotally connected to the hydraulic cylinder, and the hydraulic control device includes a second elastic element capable of applying force to the operating lever to drive the control lever component to reset.

[0023] Optionally, the control lever component further includes a gear shift lever for controlling the bicycle's gear shifting, wherein the operating direction of the gear shift lever when controlling gear shifting is perpendicular to the operating direction of the control lever component when controlling braking.

[0024] Optionally, the hydraulic control device includes a wireless unit that transmits wireless signals in response to the operation of the gear lever to control the bicycle's gear shifting.

[0025] The hydraulic control device for bicycles provided in this application has an adapter between its control lever component and piston. The control lever component contacts the adapter via a first contact portion, and the piston contacts the adapter via a second contact portion. The adapter is configured such that, during the process of being driven by the control lever component to move the piston, there is a stage where the travel component of the first contact portion's motion trajectory in the direction of the set axis is smaller than the travel component of the second contact portion's motion trajectory in the direction of the set axis. This allows the piston to have a larger travel stroke even when the control lever component has a relatively small pressing stroke, thereby improving the pressing stroke of the control lever component during braking and enhancing the feedback feel and braking effect. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this application, and are not intended to limit this application.

[0027] Figure 1 This is a three-dimensional assembly diagram of the hydraulic control device for bicycles in this application.

[0028] Figure 2 This is an exploded perspective view of the hydraulic control device for bicycles in this application.

[0029] Figure 3 This is a perspective view of the control lever component and the hydraulic generating component in the hydraulic control device for bicycles of this application.

[0030] Figure 4 This is a perspective view of the hydraulic generating components, adapters, and pushing components in the hydraulic control device for bicycles of this application.

[0031] Figure 5 This is a schematic diagram of the operational state of the hydraulic control device for bicycles in this application.

[0032] Figure 6 This is a three-dimensional assembly diagram of the hydraulic control device for bicycles of this application mounted on the handlebar.

[0033] Explanation of reference numerals in the attached drawings: 100-Hydraulic control device; 200-Handle lever; 1-Housing component; 11-Housing sleeve; 12-Fixing component; 2-Hydraulic generating component; 21-Hydraulic cylinder; 211-Pivoting part; 212-First pivot; 213-Third pivot hole; 214-Second elastic element; 22-Piston; 3-Control lever component; 31-Operating lever; 311-First pivot hole; 312-Second pivot hole; 32-Pushing element; 321-Roller; 322-Adjusting element; 323-Second pivot; 324-First elastic element; 33-Gear shift lever; 331-Gear shift lever pivot; 35-Adjusting element; 4-Adapter; 411-First contact surface; 412-Second contact surface; 413-Third pivot; 61-Wireless circuit board; 62-Top shell; 63-Top cover. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by a person skilled in the art to which this application pertains. The terms "first," "second," and similar terms used in this patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or its equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. These terms are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, features in the following embodiments can be combined with each other.

[0039] Please see Figures 1 to 6 As shown, this application provides a hydraulic control device 100 for bicycles, which can be installed on the handlebar 200 of a bicycle to control the bicycle's braking device and achieve braking. Figure 6 In the illustrated embodiment, the handle 200 is a curved handle as an example. In other embodiments, the handle 200 may also be a straight handle.

[0040] Please see Figures 1 to 5 As shown, the hydraulic control device 100 includes a housing component 1, a hydraulic generating component 2, and a control lever component 3. The housing component 1 is adapted to be attached to the handle lever 200. The hydraulic generating component 2 is installed in the housing component 1 and has a hydraulic cylinder 21 and a piston 22 disposed in the hydraulic cylinder 21. The control lever component 3 is capable of operating the piston 22 to move within the hydraulic cylinder 21 along a set axis. In this embodiment, the set axis is the central axis of the piston 22. A transition member 4 is disposed between the control lever component 3 and the piston 22. The control lever component 3 contacts the transition member 4 through a first contact portion, and the piston 22 contacts the transition member 4 through a second contact portion. In this embodiment, the first contact portion is the part of the roller 321 provided on the control lever component 3 that rolls in contact with the transition member 4; the second contact portion is the end of the piston 22 that contacts the transition member 4. The adapter is configured such that, during the process of being driven by the control lever component 3 to move the piston 22, there is at least one stage where the following motion state is satisfied: the stroke component of the motion trajectory of the first contact portion in the direction of the set axis is smaller than the stroke component of the motion trajectory of the second contact portion in the direction of the set axis. (Refer to...) Figure 5 As shown in the figure, L1 marks the travel component of the motion trajectory of the first contact part in the direction of the set axis, and L2 marks the travel component of the motion trajectory of the second contact part in the direction of the set axis, where L2 is greater than L1.

[0041] The hydraulic control device 100 for bicycles provided in this application, through the above-mentioned technical solution, enables the piston 22 to have a large stroke even when the control lever component 3 has a relatively small pressing stroke, thereby improving the pressing stroke of the control lever component 3 during braking, enhancing the feedback feel provided by the piston 22 during braking, and strengthening the braking effect.

[0042] To facilitate understanding of the technical solution of this application, the components in this application will be described below with reference to specific embodiments.

[0043] Please see Figure 1 , Figure 2 and Figure 6 As shown, one end of the housing component 1 is attached to the bicycle handlebar 200 via a fastener 12. In this embodiment, the fastener 12 is an annular retaining ring that can be fitted onto the handlebar 200 to mount the hydraulic control device 100 onto the handlebar 200. The fastener 12 can also be other components such as connecting bolts. A housing sleeve 11 is also fitted onto the housing component 1. The housing sleeve 11 has anti-slip textures to prevent slippage when the user grips it, enhancing operational reliability. In this embodiment, the housing component 1 is an injection-molded part, and the housing sleeve 11 is a rubber sleeve.

[0044] The housing component 1 is shaped like a handle for easy gripping and has a cavity inside, into which the hydraulic generating component 2 can be installed. The other end of the housing component 1, opposite the fixing member 12, has an opening communicating with the cavity, allowing the hydraulic generating component 2 to be installed into the cavity of the housing component 1 through this opening. The piston 22 of the hydraulic generating component 2 is located on one side of the opening in the housing component 1, and the control lever component 3 is also located on the same side of the opening in the housing component 1, such that the control lever component 3 can push the piston 22.

[0045] Please see Figure 2 and Figure 3As shown, the control lever component 3 includes an operating lever 31 and a pressing member 32. The operating lever 31 has a first pivot hole 311 and a second pivot hole 312. The first pivot hole 311 is pivotally connected to the hydraulic cylinder 21 via a first pivot 212, and the second pivot hole 312 is pivotally connected to the pressing member 32 via a second pivot 323. The control lever component 3 also includes a first elastic member 324 disposed between the pressing member 32 and the operating lever 31. The first elastic member 324 is configured to generate an elastic force that causes the pressing member 32 to abut against the operating lever 31, thus keeping the pressing member 32 relatively stationary. This allows the operating lever 31 and the pressing member 32 to move synchronously when the piston 22 is pressed by the pressing member 32 driven by the operating lever 31, and avoids abnormal noise caused by the pressing member 32 shaking during riding. In this embodiment, the first elastic element 324 is a torsion spring sleeved on the second pivot 323, with one end of the torsion spring abutting against the operating rod 31 and the other end abutting against the pushing element 32.

[0046] Furthermore, the pressing member 32 includes a roller 321. The roller 321 is configured to roll in contact with the adapter 4 during the process of the pressing member 32 pressing the piston 22 via the adapter 4. Using the rolling motion of the roller 321 instead of sliding can reduce wear and increase service life. In this embodiment, the roller 321 may be, for example, a rolling bearing. The roller 321 is rotatably connected to the pressing member 32 of the control lever component 3 via a roller shaft. In this embodiment, the position of the pressing member 32 for mounting the roller 321 is configured to protrude towards the adapter 4 for easy contact and force application.

[0047] An adjusting member 322 is also provided between the operating lever 31 and the pushing member 32. The adjusting member 322 is configured to adjust the relative angle between the pushing member 32 and the operating lever 31. The adjusting member 322 is located at the end of the pushing member 32 away from the second pivot 323, and the second pivot 323 and the adjusting member 322 are located on opposite sides of the roller 321. This allows the adjusting member 322 to be away from the second pivot 323 and the first elastic member 324 sleeved on the second pivot 323, providing convenient operating space for adjustment and reducing resistance during adjustment. In this embodiment, the adjusting member 322 is an adjusting screw. The length of the adjusting screw located between the pushing member 32 and the operating lever 31 can be changed by rotating it forward or backward. Therefore, when the position of the operating lever 31 is determined, the relative angle between the pushing member 32 and the hydraulic cylinder 21 will change with the adjustment of the adjusting screw, thereby changing the distance between the pushing member 32 and the adapter 4 and the piston 22.

[0048] The control lever component 3 also includes a gearshift lever 33 for controlling the bicycle's gear changes, which is pivotally connected to the operating lever 31. The direction of operation of the gearshift lever 33 when shifting gears is perpendicular to the direction of operation of the control lever component 3 when braking. The gearshift lever 33 is pivotally connected to the operating lever 31 via a gearshift lever pivot 331, the central axis of which is perpendicular to a set axis. The perpendicular operation directions of the operating lever 31 and the gearshift lever 33 prevent unwanted movements from occurring when either is operated, thus avoiding accidental gear changes or braking and ensuring driving safety.

[0049] In this embodiment, the hydraulic control device 100 is also a gear shifting device, particularly a wireless gear shifting device. The hydraulic control device 100 further includes a wireless unit, which is triggered by the gear shift lever to transmit a wireless signal to control the bicycle's gear shifting. Specifically, the wireless unit includes a wireless circuit board 61 disposed on the housing component 1. The housing component 1 includes a top shell 62 and a top cover 63, which are used to fix the wireless circuit board 61 to the housing component 1. The wireless circuit board 61 includes at least a wireless transmitter, which can respond to the gear shifting operation of the gear shift lever 33 by transmitting a wireless gear shifting signal to the gearshift, thereby realizing gear shifting. The wireless circuit board 61 may also include a wireless receiver for receiving feedback signals.

[0050] Please continue reading. Figure 2 and Figure 3As shown, the hydraulic generating component 2 includes a hydraulic cylinder 21 and a piston 22 movably mounted in the hydraulic cylinder 21. The piston 22 includes a piston rod and a piston head connected to the piston rod. The piston head includes a rubber component that is sealed against the inner surface of the cylinder chamber of the hydraulic cylinder 21 to push hydraulic oil or other fluids to flow towards the braking device to generate hydraulic power for braking. One end of the piston rod protrudes from the hydraulic cylinder 21 for external force to push. The hydraulic cylinder 21 has a pivot portion 211 extending from the end of the exposed piston rod to form a pivot connection for the control lever component 3. In this embodiment, the pivot portion 211 is a connecting lug that protrudes upward from the end of the hydraulic cylinder 21 with the exposed piston 22. The upward protrusion of the pivot portion 211 allows it to move away from the piston 22, thereby increasing the distance between the pivot portion 211 and the piston 22. This ensures that when the control lever component 3 is pivotally connected to the pivot portion 211, there is a suitable distance between the roller 321 and the pivot position of the control lever component 3 to meet the stroke requirements during pushing. In this embodiment, the pivot portion 211 extends obliquely upward from one end of the hydraulic cylinder 21. The first pivot 212 passes through the first pivot hole 311 on the operating lever 31 and connects to the pivot portion 211. The first pivot 212 defines the axis of swing of the control lever component 3. A second elastic element 214 is provided at the pivot portion 211. One end of the second elastic element 214 abuts against the hydraulic cylinder 21, and the other end abuts against the control lever component 3. The second elastic element 214 is used to return the control lever component 3 to its initial position after the squeezing pressure applied by the user is released. In this embodiment, the second elastic element 214 is a torsion spring sleeved on the first pivot 212. In this embodiment, since the control lever component 3 and the piston 22 are separate structures, the resetting of the control lever component 3 does not cause the piston 22 to reset. Therefore, the hydraulic cylinder 21 also includes a spring for pushing the piston 22 back to its initial position after the pressure applied to the piston 22 by the control lever component 3 is released. In this embodiment, the control lever component 3 is pivotally connected to the hydraulic cylinder 21 via the operating lever 31; in other embodiments, the control lever component 3 can also be pivotally connected to the housing component 1 via the operating lever 31.

[0051] Please see Figures 2 to 4As shown, the adapter 4 is pivotally connected to the hydraulic cylinder 21. Specifically, the pivot portion 211 of the hydraulic cylinder 21 is provided with a third pivot hole 213, and one end of the adapter 4 is rotatably connected to the pivot portion 211 through the third pivot hole 213 via a third pivot 413. The third pivot 413 is parallel to the first pivot 212 and is closer to the piston 22 than the first pivot 212. The adapter 4 is a wedge-shaped block; specifically, the portion in contact with the control lever component 3 and the piston 22 is configured as a wedge-shaped block structure. When driven by the control lever component 3, the adapter can move relative to both the control lever component 3 and the piston 22. In this embodiment, the adapter 4 has a first contact surface 411 that contacts the control lever component 3 and a second contact surface 412 that contacts the piston 22. The plane containing the first contact surface 411 is not parallel to the plane containing the second contact surface 412, so that the stroke can be changed between the control lever component 3 and the piston 22. Further, the control lever component 3 and the adapter 4, and / or the piston 22 and the adapter 4, are in rolling contact. In this embodiment, the control lever component 3 and the first contact surface 411 of the adapter 4 are in rolling contact via a roller 321; the second contact surface 412 of the adapter 4 and the piston 22 are in sliding contact. In another embodiment, a roller may also be provided on the end of the piston 22 or on the second contact surface 412 of the adapter 4 to achieve rolling contact.

[0052] The following is a key reference. Figure 5 The braking process is described below. During braking, the portion of the roller 321 of the control lever component 3 that contacts the adapter 4 forms the first contact portion, and the end of the piston 22 that contacts the adapter 4 forms the second contact portion. When the operating lever 31 is pressed, the operating lever 31 drives the pushing component 32 to rotate around the first pivot 212. The movement trajectory of the first contact portion is as follows: Figure 5 The segment marked L1 in the arc shown in R1 represents the movement trajectory of the adapter 4. Figure 5 The trajectory of the piston 22 is shown as a straight line R3, corresponding to the arc shown by R2. That is, the pushing member 32, the adapter 4, and the piston 22 move from... Figure 5The solid line indicates the position, which then moves to the dashed line. In the diagram, L1 represents the travel component of the first contact part's trajectory along the set axis, and L2 represents the travel component of the second contact part's trajectory along the set axis, where L2 is greater than L1; that is, the adapter 4 amplifies the travel. It should be noted that in this embodiment, the adapter 4 amplifies the travel throughout the entire process of pressing the control lever component 3. In other embodiments, the relative angle and / or shape of the contact surfaces between the first contact surface 411 and / or the second contact surface 412 of the adapter 4 can be changed to achieve the same effect at least at a certain stage during the entire process of pressing the control lever component 3.

[0053] As can be seen from the above description of the specific embodiments, the bicycle hydraulic control device 100 provided in this application has an adapter 4 disposed between the control lever component 3 and the piston 22. The control lever component 3 contacts the adapter 4 through a first contact portion, and the piston 22 contacts the adapter 4 through a second contact portion. The adapter 4 is configured such that, during the process of being driven by the control lever component 3 to push the piston 22 to move, there is a stage in which the stroke component of the movement trajectory of the first contact portion in the direction of the set axis is smaller than the stroke component of the movement trajectory of the second contact portion in the direction of the set axis. This allows the piston 22 to have a larger movement stroke even when the control lever component 3 has a relatively small pressing stroke, thereby improving the pressing stroke of the control lever component 3 during braking and enhancing the feedback feel and braking effect during braking.

[0054] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A hydraulic control device for bicycles, used to control bicycle braking, characterized in that, The hydraulic control device includes: A hydraulic generating component includes a hydraulic cylinder and a piston disposed in the hydraulic cylinder; and The control lever component is capable of operating the piston to move along a set axis within the hydraulic cylinder; A connector is provided between the control lever component and the piston. The control lever component contacts the connector through a first contact portion, and the piston contacts the connector through a second contact portion. During the process of the adapter being driven by the control lever component to move the piston, there is at least one stage in which the following motion state is satisfied: The travel component of the first contact portion's motion trajectory in the direction of the set axis is smaller than the travel component of the second contact portion's motion trajectory in the direction of the set axis. The control lever component includes an operating lever and a pressing member. The operating lever has a first pivot hole and a second pivot hole. The operating lever is pivotally connected to the hydraulic cylinder through the cooperation of the first pivot hole and a first pivot. The pressing member is pivotally connected to the operating lever through the cooperation of the second pivot hole and the second pivot. The hydraulic cylinder has a third pivot hole. The adapter is pivotally connected to the hydraulic cylinder through the cooperation of the third pivot hole and a third pivot. The second pivot and the third pivot are both located further downward than the first pivot, and the third pivot is closer to the piston than the first pivot.

2. The hydraulic control device for bicycles as described in claim 1, characterized in that, When the adapter is driven by the control lever component, it can move relative to both the control lever component and the piston.

3. The hydraulic control device for bicycles as described in claim 2, characterized in that, The adapter has a first contact surface that contacts the control lever component and a second contact surface that contacts the piston, wherein the plane containing the first contact surface is not parallel to the plane containing the second contact surface.

4. The hydraulic control device for bicycles as described in claim 3, characterized in that, The adapter is a wedge-shaped block.

5. The hydraulic control device for bicycles as described in claim 1, characterized in that, The control lever component and the adapter, and / or the piston and the adapter, are in rolling contact.

6. The hydraulic control device for bicycles as described in claim 1, characterized in that, The control lever component includes a first elastic element configured to elastically push against the push member so that it remains relatively stationary with respect to the operating lever.

7. The hydraulic control device for bicycles as described in claim 5, characterized in that, The pressing member includes a roller, which is configured to roll in contact with the adapter during the process of the pressing member pressing the adapter.

8. The hydraulic control device for bicycles as described in claim 1, characterized in that, An adjusting member is also provided between the operating lever and the pushing member, and the adjusting member is configured to adjust the relative angle between the pushing member and the operating lever.

9. The hydraulic control device for bicycles as described in claim 8, characterized in that, The adjusting component is an adjusting screw.

10. The hydraulic control device for bicycles as described in claim 6, characterized in that, The hydraulic control device includes a second elastic element capable of applying force to the operating lever to drive the control lever component to reset.

11. The hydraulic control device for bicycles as described in claim 1, characterized in that, The control lever component also includes a gear shift lever for controlling the bicycle's gear shifting, wherein the operating direction of the gear shift lever when controlling gear shifting is perpendicular to the operating direction of the control lever component when controlling braking.

12. The hydraulic control device for bicycles as described in claim 11, characterized in that, The hydraulic control device includes a wireless unit that transmits wireless signals in response to the operation of the gear lever to control the bicycle's gear shifting.

Citation Information

Patent Citations

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