Oil pressure handle, oil way connecting structure of oil pressure handle and bicycle

Abstract

The oil pressure handle is used for being installed on a bicycle frame, the bicycle frame is provided with a first connector communicated with an oil conveying pipe for conveying oil, the portion, close to the first connector, of the oil conveying pipe is located in the bicycle frame, and the oil pressure handle is provided with a second connector. The second connector is communicated with a handle oil way in the oil pressure handle, and when the oil pressure handle is fixedly connected to the vehicle frame, the second connector is communicated with the first connector in a butt joint mode. The oil pressure handle is in oil way connection with the frame in a joint butt joint mode, an oil conveying pipeline exposed outside cannot be formed at the installation position of the oil pressure handle, and the oil pressure handle is more attractive and not prone to being pulled.

Description

Technical Field

[0001] This utility model relates to the field of brake caliper technology, specifically to a hydraulic handle, a hydraulic circuit connection structure for the hydraulic handle, and a bicycle. Background Technology

[0002] Currently, bicycle brake levers are typically bolted to the handlebars of the frame. The brake lines connecting to the levers, whether externally or internally routed, are directly connected to the hydraulic fluid inlet of the lever, thus allowing hydraulic fluid to enter the internal hydraulic circuitry. However, this connection structure creates unnecessary and exposed hydraulic lines at the lever's mounting location, which is not only unsightly but also easily pulled on. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects or problems in the background art and provide a hydraulic handle, a hydraulic handle oil circuit connection structure and a bicycle. The hydraulic handle is connected to the frame by a connector to form an oil circuit. No oil pipeline is exposed at the installation position of the hydraulic handle, which is more aesthetically pleasing and less prone to being pulled.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Technical Solution 1: A hydraulic handle for mounting to a vehicle frame, wherein the vehicle frame is provided with a first connector communicating with an oil supply pipe for conveying hydraulic fluid, the portion of the oil supply pipe near the first connector being located inside the vehicle frame, the hydraulic handle being provided with a second connector communicating with the handle oil circuit inside the hydraulic handle, and when the hydraulic handle is fixed to the vehicle frame, the second connector is connected to the first connector.

[0006] Technical Solution 2 based on Technical Solution 1: The hydraulic handle is provided with a mounting part, and the second connector is provided in the mounting part and is connected to the first connector along the first direction; the mounting part is provided with a first through hole along the first direction and a second through hole along the second direction perpendicular to the first direction; the first through hole and the second through hole are used for fasteners to pass through and cooperate with the fasteners to fix the hydraulic handle to the vehicle frame.

[0007] Technical solution three based on technical solution two: The mounting part is provided with a mating surface perpendicular to the first direction and a locking protrusion extending from the mating surface along the first direction; the mating surface is provided with a first opening that connects to the oil circuit of the handle, and the second connector is inserted into and fixed in the first opening; the first through hole penetrates the mating surface along the first direction, and the second through hole is provided in the locking protrusion.

[0008] Technical Solution 4 based on Technical Solution 3: The lower edge of the mounting part is provided with an upwardly curved arc-shaped docking part, the shape of which is adapted to the shape of the corresponding position of the frame, and is used for the frame to be embedded when the hydraulic handle is fixed to the frame.

[0009] Technical solution five based on technical solution four: The hydraulic handle includes a base, a handle and a piston; the base is provided with the handle oil passage and a hydraulic chamber communicating with the handle oil passage, and the mounting part is provided on the base; the handle is rotatably connected to the base and linked with the piston; the piston is slidably installed in the hydraulic chamber and is driven by the handle to apply pressure to the oil in the hydraulic chamber.

[0010] Technical Solution Six based on Technical Solution One: The first connector and the second connector are connected by a male-female plug-in method.

[0011] Technical solution seven based on technical solution one: also includes a joint sealing ring; the joint sealing ring is located between the first joint and the second joint, and is adapted to abut against the surface of the first joint or the frame facing the hydraulic handle to form a seal.

[0012] Technical solution eight based on technical solution seven: The second connector is surrounded by a sealing ring groove, and the connector sealing ring is embedded and fixed in the sealing ring groove.

[0013] In addition, this utility model also provides technical solution nine: an oil circuit connection structure for a hydraulic handle, wherein the hydraulic handle is fixedly connected to the vehicle frame, the vehicle frame is provided with a first connector communicating with an oil supply pipe for conveying oil, and the portion of the oil supply pipe near the first connector is located inside the vehicle frame; the hydraulic handle is provided with a second connector, the second connector communicating with the handle oil circuit inside the hydraulic handle, and when the hydraulic handle is fixedly connected to the vehicle frame, the second connector is connected to the first connector.

[0014] In addition, this utility model also provides technical solution ten: a bicycle, which includes a frame, the frame having a first connector communicating with an oil supply pipe for conveying oil, the portion of the oil supply pipe near the first connector being located inside the frame, and further including a hydraulic handle as described in any one of technical solutions one to eight, the hydraulic handle being fixedly connected to the frame, and its second connector being connected to the first connector on the frame.

[0015] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0016] Technical Solution 1 provides a hydraulic handlebar with a second connector on it that communicates with the internal hydraulic circuit. A first connector, located within the frame and connected to the oil supply line, is also located on the frame. The hydraulic circuit is achieved by connecting the second connector to the first connector when the hydraulic handlebar is fixed to the frame. The key to this solution is directly connecting the second connector to the first connector, and the installation position of the second connector is related to the locking position when the hydraulic handlebar is fixed to the frame. Only in this way can the first and second connectors be connected and a stable hydraulic circuit be formed simultaneously when the hydraulic handlebar is fixed to the frame. Because the first connector on the frame directly connects to the second connector on the hydraulic handlebar, instead of connecting via an external jumper or pulling the internal oil supply line to the outside before connecting to the hydraulic handlebar, exposed oil lines are avoided at the hydraulic handlebar's installation position. This effectively reduces the possibility of interference between the oil supply line and the rider, improving the safety and stability of the bicycle and making the overall bicycle structure simpler and more aesthetically pleasing.

[0017] In technical solution two, the hydraulic handle is provided with a mounting part, which has the aforementioned second connector and a first through hole in the first direction and a second through hole in the second direction. Since the second connector needs to directly mate with the first connector on the frame, and the hydraulic handle is generally installed on the handlebar tube of the frame, the second connector will inevitably occupy the space on the side of the hydraulic handle that contacts the frame. In this case, by providing the first and second through holes that are perpendicular to each other, the two fasteners can be fastened to the frame in mutually perpendicular directions after passing through the first and second through holes, so that the hydraulic handle can be firmly installed on the frame without affecting the mating fit between the second connector and the first connector.

[0018] In technical solution three, a mating surface perpendicular to the first direction and a locking protrusion extending from the mating surface along the first direction are provided in the mounting part. The mating surface has a first opening for connecting the handle's oil circuit. The second connector is inserted into and fixed in the first opening. A first through hole extends through the mating surface along the first direction, and a second through hole is located on the locking protrusion. On the one hand, this provides a suitable installation position for the second connector, allowing it to be firmly inserted and fixed in the first opening, ensuring the continuity of the oil circuit. On the other hand, the design of through holes at different positions allows fasteners to pass through in reasonable locations, ensuring a firm connection between the hydraulic handle and the frame, while also optimizing the spatial layout between components.

[0019] In technical solution four, an upwardly curved arc-shaped mating part is provided at the lower edge of the mounting section. Its shape matches the corresponding position on the frame, allowing the frame to be embedded into this arc-shaped mating part when the hydraulic handle is fixed to the frame. This makes the installation of the hydraulic handle and the frame more seamless, enhancing the tightness and stability of the connection, further optimizing the overall structure, and improving the assembly effect of the bicycle.

[0020] In technical solution five, the hydraulic handle includes a base, a handle, and a piston. The base has a handle oil passage and a hydraulic chamber connected to the handle oil passage. The mounting part is located on the base. The handle is rotatably connected to the base and linked to the piston. The piston is slidably mounted in the hydraulic chamber, and the handle drives the hydraulic fluid in the hydraulic chamber to apply pressure. This configuration allows the pressure of the hydraulic fluid in the hydraulic chamber to be controlled by operating the handle, thereby realizing the braking function of the bicycle.

[0021] In technical solution six, a male-female plug-in method is used to connect the first and second connectors. The shape design of the male and female connectors allows for automatic alignment and tight connection during insertion, ensuring accurate connection and sealing, while also facilitating installation and disassembly. This design simplifies the connection process between the hydraulic handle and the frame, improves installation efficiency, reduces installation difficulty, ensures good hydraulic circuit connection, reduces the risk of oil leakage, and enhances the reliability of the entire braking system.

[0022] In technical solution seven, a sealing ring is provided between the first and second connectors, and it abuts against the surface of the first connector or the frame facing the hydraulic handle to form a seal. When the sealing ring is compressed by the connector, it undergoes elastic deformation, filling the tiny gaps between the connectors, preventing oil leakage, and ensuring the sealing of the oil circuit.

[0023] In technical solution eight, a sealing ring groove is provided around the second joint, and the joint sealing ring is embedded and fixed in the sealing ring groove. The sealing ring groove provides a stable installation position for the joint sealing ring, preventing the joint sealing ring from shifting or falling off during use, and ensuring the durability of the sealing effect.

[0024] Technical Solution Nine provides a hydraulic circuit connection structure for a hydraulic handlebar. This structure involves installing a first connector on the frame and a second connector on the hydraulic handlebar, achieving connection between the connectors when the handlebar is fixed to the frame. This hydraulic circuit connection structure, from an overall hydraulic circuit connection perspective, ensures a simple and effective connection between the hydraulic handlebar and the frame, improves the interference problem of external oil supply lines, and provides a reliable hydraulic circuit architecture foundation for the stable operation of the bicycle braking system.

[0025] Technical solution ten provides a bicycle in which a hydraulic handle from any one of technical solutions one through eight is installed on the bicycle, including a frame, and the second connector of the hydraulic handle is connected to the first connector of the frame. In practical applications of bicycles, the organic integration of the hydraulic handle with the frame provides a safe, reliable, aesthetically pleasing, and easy-to-maintain braking system solution, improving the overall performance of the bicycle and the user experience. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of an embodiment of the oil circuit connection structure involved in this utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the hydraulic handle involved in this utility model;

[0029] Figure 3 This is a cross-sectional view of the hydraulic handle involved in this utility model.

[0030] Explanation of key figure labels:

[0031] Hydraulic handle 10; second connector 11; base 12; mounting part 121; hydraulic chamber 122; handle oil passage 123; first through hole 124; second through hole 125; mating surface 126; locking protrusion 127; arc-shaped mating part 128; first opening 129; handle 13; piston 14; connector sealing ring 15; sealing ring groove 16; handle oil passage 17; second opening 18;

[0032] Frame 20; Oil pipe 21; First connector 22; Connector sealing ring 23;

[0033] Fastener 30. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0035] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0036] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does 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 limiting the specific protection scope of this utility model.

[0037] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0038] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0039] In the claims, description and drawings of this invention, the term "interference fit" or its variations means: in mechanical assembly, a fit in which the actual size of the shaft is larger than the actual size of the hole, and pressure is generated between the two after assembly, wherein the algebraic difference between the hole and shaft sizes is negative.

[0040] In the claims, description and the above drawings of this invention, the term "fitting connection" or its variations means: the surfaces of two or more objects are in close contact and are fitted together, usually relying on friction, clamping force, adhesive or the fit of their own shapes to achieve the connection, so that the parts form a whole to a certain extent and can jointly withstand external forces and other effects.

[0041] In the claims, description and drawings of this invention, the term "butt" or its variations means: a method in which two joints achieve the functions of connecting, transmitting materials or signals by directly bringing their ends together so that the connecting parts of the joints are in close contact on the same axis.

[0042] In the claims, description and the above drawings of this invention, the term "male and female plug-in" or its variations means that two elements having a protruding part (male head) and a corresponding recessed part (female head) are tightly joined together by inserting the male head into the female head, thereby realizing functions such as electrical connection, fluid transmission or mechanical fixation.

[0043] Example

[0044] This utility model embodiment relates to an oil circuit connection structure for a bicycle and a hydraulic handlebar 10. The bicycle mainly includes a frame 20 and a hydraulic handlebar 10. The frame 20 is provided with a first connector 22 communicating with an oil supply pipe 21 for conveying oil. The portion of the oil supply pipe 21 near the first connector 22 is located inside the frame 20. In addition, a hydraulic caliper can be installed on the frame 20. The hydraulic caliper is connected to the other end of the oil supply pipe 21. By operating the hydraulic handlebar 10, the oil in the oil supply pipe 21 moves, driving the hydraulic caliper to clamp the brake pads and achieve braking of the bicycle.

[0045] In the hydraulic circuit connection structure of the hydraulic handle 10 involved in this embodiment, the hydraulic handle 10 is provided with a second connector 11, which is connected to the handle oil circuit 17123 inside the hydraulic handle 10. When the hydraulic handle 10 is fixed to the frame 20, the second connector 11 is connected to the first connector 22. This hydraulic circuit connection structure ensures a simple and effective hydraulic circuit connection between the hydraulic handle 10 and the frame 20 from the perspective of the overall hydraulic circuit connection structure, improves the interference problem of the external oil supply pipe 21, and provides a reliable hydraulic circuit architecture foundation for the stable operation of the bicycle braking system.

[0046] Furthermore, the specific structure of the frame 20 and the hydraulic handle 10 will be described below.

[0047] Reference Figure 1 The oil supply pipe 21 is pre-embedded in the pipe body of the frame 20, and a first connector 22 is provided on the pipe body. In this embodiment, the pipe body with the first connector 22 is the handle 13 pipe of the frame 20. At the handle 13 pipe, the portion of the oil supply pipe 21 near the first connector 22 is located inside the frame 20.

[0048] Specifically, the pipe body is formed by the enclosure of the pipe wall, for example, refer to Figure 1 The handle 13 shown has a structure in which the oil pipe 21 is fixed to the inner wall of the pipe, and a countersunk hole is recessed in the pipe wall, into which the first connector 22 is embedded. The pipe wall can be made entirely of carbon fiber material, or of a composite material containing carbon fiber, such as with added glass fiber. Of course, in other embodiments, the pipe wall can also be made of metal material, such as aluminum alloy.

[0049] When the pipe fittings are made of materials such as carbon fiber, the oil pipe 21 can be pre-placed in the middle of the multiple layers of carbon fiber that make up the pipe wall, and then formed together with the carbon fiber. At this time, the space occupied by the oil pipe 21 between the carbon fibers can form an installation channel for the oil pipe 21. Since the oil pipe 21 and the pipe wall are formed together, the outer wall of the oil pipe 21 can form a tight fit with the inner wall of the installation channel, and the oil pipe 21 is tightly wrapped and fixed by the installation channel. The first connector 22 can be fixed to the pipe wall during the pipe wall forming process, or after the pipe wall is formed, the first connector 22 can be fixed to the pipe wall and made to communicate with the oil pipe 21. This design not only reduces the assembly process of inserting the oil pipe 21 into the frame 20, but also ensures a strong connection between the oil pipe 21 and the pipe body. Furthermore, the pipe wall structure is strong, and after the oil pipe 21 is wrapped by the installation channel, the oil pressure it receives will be transmitted to the pipe wall. Therefore, the thickness of the oil pipe 21 can be made thinner than that of conventional brake cable oil pipes, further increasing the inner diameter of the oil pipe 21 to facilitate the transmission of oil pressure.

[0050] Alternatively, in other embodiments, the outer surface of the oil pipe 21 can be directly bonded to the inner surface of the pipe wall. For example, during the pipe wall forming process, the oil pipe 21 is placed at the innermost layer of the pipe wall, and then the oil pipe 21 and the pipe wall are formed together. Because the pipe wall is made of carbon fiber material, the outer layer of the oil pipe 21 can be directly connected to the inner surface of the pipe wall during the thermoforming process. In addition, an adhesive can be applied to the outer surface of the oil pipe 21. When the oil pipe 21 is placed in the installation channel, the adhesive can further fix the oil pipe 21 to the installation channel. With this configuration, the oil pipe 21 will not wobble in its radial direction, and it will also be fixed to the pipe wall in its extension direction. The oil pipe 21 will not slide back and forth in the installation channel, which can further prevent the first joint 22 from loosening between itself and the pipe wall due to the influence of the oil pipe 21.

[0051] The bottom of the first connector 22 is provided with a hollow insert, which can be inserted into the oil pipe 21 and form an interference fit with the oil pipe 21. The interference fit between the insert and the oil pipe 21 enables the oil pipe 21 and the first connector 22 to form an oil passage connection.

[0052] A downward-recessed countersunk hole is provided on the outer surface of the pipe wall. The bottom of this countersunk hole has a through-hole that penetrates the pipe wall, and the position of this through-hole corresponds to the end position of the oil delivery pipe 21 within the pipe wall. In a further embodiment, the end of the oil delivery pipe 21 can be inserted into the through-hole at the bottom of the countersunk hole to limit its position. Corresponding to the countersunk hole, a first connector 22 is embedded and fixed within it. The lower end of the first connector 22 is provided with a axially extending insert. The insert is hollow inside and open at both ends. This insert can pass through the through-hole at the bottom of the countersunk hole, thereby extending into the oil delivery pipe 21. The outer diameter of the insert is adapted to the inner diameter of the oil delivery pipe 21, allowing the insert to form an interference fit with the oil delivery pipe 21 after insertion. The countersunk hole allows for a larger contact area between the first connector 22 and the pipe wall. Simultaneously, the inner circumferential wall of the countersunk hole limits the movement of the first connector 22, preventing it from wobbling circumferentially. Furthermore, the axial movement of the first connector 22, which is in the same direction as the extension of the oil pipe 21, is further restricted due to its fixed connection to the oil pipe 21, making it less prone to loosening. Additionally, by providing the countersunk hole, the first connector 22 does not need to protrude beyond the outer wall surface of the pipe, or only slightly protrudes, facilitating the connection between the first connector 22 and the second connector 11 and reducing dirt accumulation.

[0053] In addition, two threaded holes are provided on the handle 13 tube corresponding to the mounting position of the hydraulic handle 10. The hydraulic handle 10 can be fixedly installed on the handle 13 tube by the threaded engagement of the fastener 30 with the threaded holes. The location of the threaded holes is described in the following description of the hydraulic handle 10.

[0054] Reference Figure 1 , Figure 2 and Figure 3The hydraulic handle 10 is provided with a mounting portion 121, and the second connector 11 is provided in the mounting portion 121 and is connected to the first connector 22 along a first direction. The mounting portion 121 is provided with a first through hole 124 along the first direction and a second through hole 125 along a second direction perpendicular to the first direction. The first through hole 124 and the second through hole 125 are used for fasteners 30 to pass through and cooperate with the fasteners 30 to fix the hydraulic handle 10 to the frame 20. The mounting portion 121 is provided with a mating surface 126 perpendicular to the first direction and a locking protrusion 127 extending from the mating surface 126 along the first direction. The mating surface 126 is provided with a first opening 129 communicating with the handle oil passage 17123, and the second connector 11 is inserted into and fixed in the first opening 129. The first through hole 124 penetrates the mating surface 126 along the first direction, and the second through hole 125 is provided in the locking protrusion 127. The lower edge of the mounting part 121 is provided with an upwardly curved arc-shaped docking part 128. The shape of the arc-shaped docking part 128 is adapted to the shape of the corresponding position of the frame 20, and allows the frame 20 to be embedded when the hydraulic handle 10 is fixed to the frame 20.

[0055] The hydraulic handle 10 includes a base 12, a handle 13, and a piston 14. The base 12 is provided with a handle oil passage 17123 and a hydraulic chamber 122 communicating with the handle oil passage 17123. The mounting part 121 is provided on the base 12. The handle 13 is rotatably connected to the base 12 and is linked with the piston 14. The piston 14 is slidably mounted on the hydraulic chamber 122 and is driven by the handle 13 to apply pressure to the oil in the hydraulic chamber 122.

[0056] Specifically, refer to Figure 1 and Figure 2 The base 12 of the hydraulic handle 10 is adapted to be mounted to the handle 13 tube, and the handle 13 is rotatably mounted on the base 12 about a pivot. (See reference...) Figure 3The upper end of the handle 13 is linked to the piston 14. When the handle 13 is squeezed, the upper end of the handle 13 will drive the piston 14 to slide in a preset direction. When the handle 13 is released, the handle 13 returns to its original position under the action of the torsion spring, and the piston 14 is driven to return to its original position at the same time. A hydraulic chamber 122 for mounting the piston 14 is provided in the base 12, and the piston 14 can slide along the extension direction of the hydraulic chamber 122. At the same time, a handle oil passage 17123 is provided in the base 12. One end of the handle oil passage 17123 is a first opening 129 provided in the mounting part 121, and a second connector 11 is installed in the first opening 129. The other end of the handle oil passage 17123 is a second opening 18 provided in the cavity wall of the hydraulic chamber 122. When the second connector 11 is connected to the first connector 22, as the piston 14 slides, the pressure of the oil can be transmitted from the handle oil passage 17123 to the hydraulic caliper through the connector and the oil supply pipe 21.

[0057] Reference Figure 2 A mounting portion 121 is formed at the end of the base 12 near the handle 13 tube. A mating surface 126 is formed on the side of the mounting portion 121 facing the handle 13 tube. A first opening 129 is formed on the mating surface 126. A second connector 11 is inserted into the first opening 129 and fixedly connected to the base 12. The second connector 11 can be fixed by screwing or bonding. A first through hole 124 and a second through hole 125 are respectively provided on both sides of the second connector 11. The first through hole 124 penetrates the mating surface 126 along a first direction, and the second through hole 125 is provided on the locking protrusion 127 and penetrates the locking protrusion 127 along a second direction. Simultaneously, the handle 13 tube of the frame 20 has threaded holes corresponding to the position and direction of the first through hole 124 and the second through hole 125. After the fastener 30 passes through the first through hole 124 and the second through hole 125, it can form a threaded engagement with the threaded holes, thereby fixing the base 12 onto the handle 13 tube.

[0058] Furthermore, an arc-shaped mating part 128 is provided below the second connector 11. The shape of the arc-shaped mating part 128 is adapted to the shape of the handlebar tube 13. When the hydraulic handle 10 is fixed to the frame 20, the frame 20 can be embedded in the arc-shaped mating part 128. This makes the installation of the hydraulic handle 10 and the frame 20 more closely fit, enhances the tightness and stability of the connection between the two, further optimizes the overall structure, and improves the assembly effect of the bicycle.

[0059] The first caliper is equipped with the aforementioned second connector 11. In this embodiment, the first connector 22 and the second connector 11 are connected by a male-female mating method. Specifically, the first connector 22 has a recessed mating groove, and the second connector 11 has a protruding mating protrusion. A through hole is provided at the bottom of the mating groove to connect to the oil supply pipe 21. The mating protrusion has a hollow internal structure, and after the mating protrusion is inserted into the mating groove, its opening can communicate with the through hole at the bottom of the mating groove, allowing oil to be delivered from the first connector 22 to the second connector 11. The male-female mating method connects the first connector 22 and the second connector 11. The shape design of the male and female connectors allows for automatic alignment and tight connection during insertion, ensuring accurate and airtight connection, while facilitating installation and disassembly. This design simplifies the connection process between the hydraulic handle 10 and the frame 20, improves installation efficiency, reduces installation difficulty, ensures good oil circuit connection, reduces the risk of oil leakage, and enhances the reliability of the entire braking system.

[0060] Furthermore, referring to Figure 3 A sealing ring groove 16 is provided around the outer wall of the mating protrusion, and a joint sealing ring 2315 is embedded and fixed in the sealing ring groove 16, as shown in the figure. Figure 1 When the mating protrusion is inserted into the mating groove, the joint sealing ring 2315 abuts against the surface of the first joint 22 on the frame 20 facing the hydraulic handle 10, thereby applying pressure to the joint sealing ring 2315 to deform it, thus forming a seal between the first joint 22 and the second joint 11. Of course, in other embodiments, the joint sealing ring 2315 may also abut against the outer surface of the tube wall of the frame 20.

[0061] The bicycle according to this utility model embodiment uses the aforementioned hydraulic handlebar 10. A second connector 11, communicating with the internal handlebar oil passage 17123, is provided on the hydraulic handlebar 10. A first connector 22, communicating with the oil supply pipe 21 and located within the frame 20 near the first connector 22, is provided on the frame 20. When the hydraulic handlebar 10 is fixed to the frame 20, the second connector 11 and the first connector 22 are connected, thus achieving oil passage connection. The key to this technical solution is that the second connector 11 is directly connected to the first connector 22, and the installation position of the second connector 11 is related to the locking position when the hydraulic handlebar 10 is fixed to the frame 20. Only in this way can the first connector 22 and the second connector 11 be connected and form a stable oil passage connection while the hydraulic handlebar 10 is fixed to the frame 20. Because the first connector 22 on the frame 20 is directly connected to the second connector 11 on the hydraulic handlebar 10, instead of being connected via an external jumper or having the internally routed oil pipe 21 pulled out to the outside and then connected to the hydraulic handlebar 10, the installation position of the hydraulic handlebar 10 avoids the formation of an exposed oil pipe 21, effectively reducing the possibility of interference between the oil pipe 21 and the rider, improving the safety and stability of bicycle riding, and making the overall structure of the bicycle simpler and more aesthetically pleasing.

[0062] In practical applications of bicycles, the integration of the hydraulic handlebar 10 with the frame 20 provides a safe, reliable, aesthetically pleasing, and easy-to-maintain braking system solution, enhancing the overall performance and user experience of the bicycle.

[0063] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A hydraulic handle for mounting to a frame (20), the frame (20) having a first connector (22) communicating with an oil supply pipe (21) for supplying hydraulic fluid, the portion of the oil supply pipe (21) near the first connector (22) being located within the frame (20), characterized in that, The hydraulic handle (10) is provided with a second connector (11), which is connected to the handle oil passage (17)(123) inside the hydraulic handle (10). When the hydraulic handle (10) is fixed to the frame (20), the second connector (11) is connected to the first connector (22).

2. A hydraulic handle as described in claim 1, characterized in that, The hydraulic handle (10) is provided with a mounting part (121), and the second connector (11) is provided on the mounting part (121) and is connected to the first connector (22) along the first direction; the mounting part (121) is provided with a first through hole (124) along the first direction and a second through hole (125) along the second direction perpendicular to the first direction; the first through hole (124) and the second through hole (125) are used for fasteners (30) to pass through and cooperate with the fasteners (30) to fix the hydraulic handle (10) to the frame (20).

3. A hydraulic handle as described in claim 2, characterized in that, The mounting part (121) is provided with a mating surface (126) perpendicular to the first direction and a locking protrusion (127) extending from the mating surface (126) along the first direction; the mating surface (126) is provided with a first opening (129) communicating with the handle oil circuit (17)(123), and the second connector (11) is inserted into and fixed in the first opening (129); the first through hole (124) penetrates the mating surface (126) along the first direction, and the second through hole (125) is provided in the locking protrusion (127).

4. A hydraulic handle as described in claim 3, characterized in that, The mounting part (121) has an upwardly curved arc-shaped docking part (128) at its lower edge. The shape of the arc-shaped docking part (128) is adapted to the shape of the corresponding position of the frame (20) and is used for the frame (20) to be embedded when the hydraulic handle (10) is fixed to the frame (20).

5. A hydraulic handle as described in claim 4, characterized in that, The hydraulic handle (10) includes a base (12), a handle (13), and a piston (14); the base (12) is provided with the handle oil passage (17)(123) and a hydraulic chamber (122) communicating with the handle oil passage (17)(123), and the mounting part (121) is provided on the base (12); the handle (13) is rotatably connected to the base (12) and linked with the piston (14); the piston (14) is slidably installed in the hydraulic chamber (122) and is driven by the handle (13) to apply pressure to the oil in the hydraulic chamber (122).

6. A hydraulic handle as described in claim 1, characterized in that, The first connector (22) and the second connector (11) are connected by a male-female plug-in method.

7. A hydraulic handle as described in claim 1, characterized in that, It also includes a joint sealing ring (23)(15); the joint sealing ring (23)(15) is located between the first joint (22) and the second joint (11) and is adapted to abut against the surface of the first joint (22) or the frame (20) facing the hydraulic handle (10) to form a seal.

8. A hydraulic handle as described in claim 7, characterized in that, The second connector (11) is surrounded by a sealing ring groove (16), and the connector sealing ring (23) (15) is embedded and fixed in the sealing ring groove (16).

9. A hydraulic circuit connection structure for a hydraulic handle, wherein the hydraulic handle (10) is fixedly connected to a vehicle frame (20), characterized in that, The frame (20) is provided with a first connector (22) that communicates with an oil delivery pipe (21) for conveying oil, and the portion of the oil delivery pipe (21) near the first connector (22) is located inside the frame (20); The hydraulic handle (10) is provided with a second connector (11), which is connected to the handle oil passage (17)(123) inside the hydraulic handle (10). When the hydraulic handle (10) is fixed to the frame (20), the second connector (11) is connected to the first connector (22).

10. A bicycle comprising a frame (20) having a first connector (22) communicating with an oil supply pipe (21) for conveying oil, the portion of the oil supply pipe (21) near the first connector (22) being located within the frame (20), characterized in that, It also includes a hydraulic handle (10) as described in any one of claims 1-8, the hydraulic handle (10) being fixed to the frame (20), and its second connector (11) being connected to the first connector (22) on the frame (20).

Images