Oil way pre-embedding structure of bicycle frame, handle connecting structure and bicycle

Abstract

The invention discloses an oil path pre-embedding structure of a bicycle frame, a handle connecting structure and a bicycle, the oil path pre-embedding structure comprises a frame body, a handle connecting structure, a handle connecting structure and a handle connecting structure, the frame body is composed of a plurality of pipe fittings, and the pipe fittings are defined by pipe walls; the oil conveying pipe is fixedly arranged in at least one pipe fitting of the frame body, the oil conveying pipe has the extending direction consistent with that of the pipe fitting, and the outer side surface of the oil conveying pipe is connected with the pipe wall of the pipe fitting in an attached mode; every two pipe joints correspondingly communicate with the two ends of one oil conveying pipe, the pipe joints are fixedly arranged on the pipe wall of the pipe fitting and exposed out of the pipe fitting, and the pipe joints and the oil conveying pipes are fixedly connected in a sealed mode through inserting cores which are arranged on the pipe joints, stretch into the oil conveying pipes and are in interference fit with the inner walls of the oil conveying pipes. According to the oil way pre-embedded structure, a brake line does not need to be arranged on the frame in a penetrating mode in the later period, and the assembling difficulty is lowered.

Description

Technical Field

[0001] The invention relates to the technical field of bicycle wiring, and in particular to an oil line pre-buried structure of a bicycle frame, a handlebar connecting structure, and a bicycle. Background Art

[0002] At present, the brake line of a bicycle is generally exposed outside the frame, which will affect the service life of the brake line on the one hand, and the appearance of the bicycle on the other hand. For this reason, the prior art proposes a routing method in which the brake line is arranged inside the frame. This routing method generally sets a plurality of openings corresponding to each other on the frame, and uses the hollow structure of the frame itself to pass the brake line through the opening at one end into the frame, and then extend it out from the opening at the other end, so that the brake line is hidden inside the frame. However, this internal routing method requires the brake line to be assembled at a later stage, and the frame has a complex shape, which makes it difficult to pass and assemble the brake line. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology, and to provide an oil circuit pre-embedded structure of a bicycle frame, a handlebar connection structure and a bicycle. The oil circuit pre-embedded structure eliminates the need to install brake lines on the frame at a later stage, thereby reducing the difficulty of assembly.

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

[0005] Technical solution 1: A pre-buried oil circuit structure of a bicycle frame, comprising: a frame body, which is composed of a plurality of pipe fittings, and the pipe fittings are formed by enclosing pipe walls; an oil pipe, the oil pipe is fixedly installed in at least one of the pipe fittings of the frame body, the oil pipe has an extension direction consistent with that of the pipe fitting, and the outer surface of the oil pipe is fitted and connected to the pipe wall of the pipe fitting; a pipe joint, each two of the pipe joints are correspondingly connected to the two ends of an oil pipe, the pipe joints are fixed to the pipe wall of the pipe fitting and exposed to the outside of the pipe fitting; the pipe joint and the oil pipe are sealed and fixedly connected by a plug core which is arranged on the pipe joint, extends into the oil pipe, and is interference fit with the inner wall of the oil pipe.

[0006] Technical solution 2 based on technical solution 1: In the pipe fitting in which the oil pipeline is fixedly installed, a hollow installation channel is provided in its wall along the extension direction of the oil pipeline; the oil pipeline is located in the installation channel and is closely connected to the inner wall of the installation channel.

[0007] Technical solution three based on technical solution two: the pipe fitting to which the oil pipeline is fixed is made of carbon fiber material, and the oil pipeline and the installation channel are co-cured.

[0008] Technical solution 4 based on technical solution 2: a countersunk hole is recessed in the pipe wall of the pipe fitting; the pipe joint is embedded in the countersunk hole and is fitted and connected with the inner wall surface of the countersunk hole.

[0009] Technical solution five based on technical solution four: the pipe fitting to which the oil pipeline is fixed is made of carbon fiber material, and the pipe joint and the countersunk hole are co-cured.

[0010] Technical solution six based on technical solution four: the inner wall surface of the countersunk hole and the outer wall surface of the pipe joint are in corresponding step shapes.

[0011] Technical Solution 7 based on Technical Solution 1: In the frame body, the pipe fittings to which the oil delivery pipe and the pipe joints are fixedly provided include a head pipe, a down pipe, a front fork pipe, a rear down fork pipe and / or a handlebar pipe.

[0012] Technical Solution 8 based on Technical Solution 7: In the frame body, at least some of the pipes that are directly fixedly connected are an integrated structure, and in at least two pipes in the integrated structure and fixed with the oil pipeline, the oil pipeline is continuously and uninterruptedly arranged in the two pipes.

[0013] Technical solution nine based on technical solution seven: In the frame body, at least part of the directly fixedly connected pipes are split structures, and in at least two pipes of the split structure and fixed with the oil pipeline, the two pipes are connected through their respective pipe joints to form a connection of the oil pipeline.

[0014] Technical solution ten based on technical solution nine: the two butted pipe joints are butted and matched in a male-female plug-in manner.

[0015] In addition, the present invention also provides Technical Solution 11: a bicycle frame handlebar connection structure, which is based on the oil circuit pre-buried structure of the bicycle frame as described in any one of Technical Solutions 1 to 10, and the head tube and handle tube of the frame body are fixedly provided with the oil pipe and pipe joint, and it also includes a front bowl assembly and an oil jumper; the handle tube is rotatably installed on the head tube through the front bowl assembly; the oil jumper includes an oil hose and two oil joints, the two oil joints are fixedly connected to the two ends of the oil hose, and are respectively connected to the pipe joints on the handle tube and the head tube that are connected to the oil pipes inside the two.

[0016] Technical solution 12 based on technical solution 11: the upper cover of the front headset is provided with a first clearance hole extending along its circumference and in an arc shape along its axial direction; the head pipe is provided with a second clearance hole in an arc shape corresponding to the first clearance hole; the oil delivery hose of the oil jumper line passes through the first clearance hole and the second clearance hole.

[0017] In addition, the present invention also provides a technical solution thirteen: a bicycle, comprising a frame, wherein the frame adopts the oil circuit pre-buried structure of the bicycle frame as described in any one of technical solutions one to ten.

[0018] It can be seen from the above description of the present invention that, compared with the prior art, the present invention has the following beneficial effects:

[0019] Technical solution 1 provides an oil circuit pre-buried structure for a bicycle frame, which not only hides the brake circuit of the bicycle inside the frame by arranging oil pipes and pipe joints on the frame body, but also eliminates the need to thread wires inside the frame, greatly reducing the difficulty of assembly.

[0020] Among them, in the setting of the oil pipeline and the pipe joint, two key technical means are included, namely, the oil pipeline is completely fixed to the inner side of the tube wall of the tube body, and the pipe joint and the oil pipeline are sealed and fixed through the insert. These two key technical means complement each other and work together to solve the problem of hiding the brake line inside the frame. Specifically, after the oil pipeline is completely fixed to the inner side of the tube wall of the tube body, the oil pipeline now has the problem of how to form a sealing fit with the pipe joint. In similar technical fields, there is a connection method of directly connecting the end of the oil pipeline with the pipe joint, but this method obviously cannot form an effective sealing fit. A further problem is that in this technical solution, the oil pipeline is completely fixed to the inner side of the tube wall of the tube body, so the end position of the oil pipeline is fixed, and the outer wall of the oil pipeline needs to fit with the inner side of the tube wall, so it is difficult to cover the pipe joint on the outside of the oil pipeline; in this technical solution, it is By arranging the insert on the pipe joint, the pipe joint forms a sealing fit with the oil pipe from the inside of the oil pipe, wherein the interference fit will cause elastic deformation of the oil pipe or the insert, which depends on the material of the oil pipe or the insert. Such elastic deformation will fill the gap between the outer surface of the insert and the inner wall of the oil pipe, and an effective seal can be formed between the pipe joint and the oil pipe without using a sealing ring, and a fixed connection relationship can be formed between the pipe joint and the oil pipe. The pipe joint is not only fixedly mounted on the pipe wall, but also further fixed to the pipe fitting of the frame body through the fixed connection with the oil pipe.

[0021] However, since the pipe joint and the oil pipeline are fixedly connected in the extension direction, and the pipe joint is fixed on the pipe wall of the pipe fitting, if the oil pipeline is not fixed in the pipe fitting at this time, the shaking of the oil pipeline in the pipe fitting will cause the connection between the pipe joint and the pipe wall to become loose, and in turn affect the matching relationship between the pipe joint and the oil pipeline. After long-term use, the pipe joint is easy to fall off from the pipe wall. For this reason, in the technical solution, the oil pipeline is further fixed on the inner side of the pipe wall of the pipe body. In this way, not only is the oil pipeline hidden inside the pipe body, but also because the position of the oil pipeline is fixed, it will not shake in the pipe body, and will not affect the connection between the pipe joint and the pipe wall. In addition, in the present technical solution, the oil pipeline is not fixedly connected only at the portion connected to the pipe joint and the pipe wall of the pipe body, but the entire oil pipeline is fixedly connected to the pipe wall. This arrangement can further ensure that the oil pipeline will not affect the pipe joint. At the same time, since the entire oil pipeline no longer shakes, material fatigue caused by shaking and bending will not occur on the oil pipeline, thereby ensuring that the oil pipeline has a long service life. During the normal service life, the oil pipeline is not easy to be damaged, and there is no need to repair the fixedly connected oil pipeline, thereby reducing maintenance costs.

[0022] Therefore, it can be seen that it is precisely because of the installation method of the oil pipeline that the sealing problem is solved by the interference fit of the insert between the pipe joint and the oil pipeline. At the same time, because the pipe joint and the oil pipeline are connected by the interference fit of the insert, the pipe joint is easily disconnected from the pipe wall due to the shaking of the oil pipeline. Therefore, the oil pipeline is completely fixed on the inside of the pipe wall. The two technical means are causally related and work together to solve the problem of pre-burying the oil circuit inside the frame body.

[0023] In the second technical solution, a hollow installation channel is provided in the pipe wall of the pipe fitting to which the oil pipeline is fixed, and the oil pipeline is provided in the installation channel and is connected to the inner wall of the installation channel. When the pipe fitting is made of materials such as carbon fiber, the oil pipeline can be placed in the middle of the multiple layers of carbon fiber combined into the pipe fitting in advance, and then formed together with the carbon fiber. At this time, the position occupied by the oil pipeline between the carbon fibers can form the above-mentioned installation channel, and because the oil pipeline and the pipe fitting are formed together, the outer wall of the oil pipeline can form a tight fitting connection with the inner wall of the installation channel, and the oil pipeline is tightly wrapped and fixed by the installation channel. The pipe joint can be fixed to the pipe fitting at the same time during the pipe fitting forming process, or after the pipe fitting is formed, the pipe joint can be fixed to the pipe fitting and its core can form an interference fit with the oil pipeline. Such a setting can not only reduce the later assembly process of inserting the oil pipe into the frame, but also form a firm connection between the oil pipe and the pipe body. In addition, the pipe wall structure of the pipe is strong. After the oil pipe is wrapped by the installation channel, the oil pressure it is subjected to will be transmitted to the pipe wall. Therefore, the thickness of the oil pipe can be set thinner than that of the conventional brake line oil pipe, further increasing the inner diameter of the oil pipe to facilitate the transmission of oil pressure.

[0024] In technical solution three, since the pipe fittings are made of carbon fiber material, the oil pipeline and the installation channel can be co-cured and formed. Not only will the oil pipeline not shake in its radial direction, but the oil pipeline will also be firmly connected to the pipe wall in its extending direction. The oil pipeline will not slide back and forth in the installation channel, which can further prevent the pipe joint from loosening due to the influence of the oil pipeline.

[0025] In the fourth technical solution, a countersunk hole is recessed on the wall of the pipe fitting, and the pipe joint is embedded in the countersunk hole and connected with the inner wall of the countersunk hole. The setting of the countersunk hole enables the pipe joint to have more contact area with the wall of the pipe fitting. At the same time, the inner peripheral wall of the countersunk hole can limit the pipe joint to ensure that the pipe joint will not shake on the peripheral side. At the same time, the axial movement of the pipe joint, that is, the movement in the same direction as the extension direction of the oil pipeline, is limited because it is fixed to the oil pipeline, so the pipe joint is less likely to loosen. At the same time, by setting the countersunk hole, the pipe joint does not need to protrude from the outer wall of the pipe wall, or only protrudes slightly from the outer wall of the pipe wall, which not only facilitates the docking between the pipe joints, but also reduces the accumulation of dirt.

[0026] In technical solution five, since the pipe fittings are made of carbon fiber material, the pipe joints and countersunk holes can be co-cured and formed, and the connection between the pipe joints and the pipe wall is more secure, which can reduce the risk of loosening of the pipe joints.

[0027] In technical solution six, the inner wall of the countersunk hole and the outer wall of the pipe joint are in corresponding step shapes, and the contact area between the two is further increased through the cooperation between the steps, so that the pipe joint can be more firmly installed on the pipe wall.

[0028] In technical solution seven, in the frame body, multiple pipe bodies can be fixed with the above-mentioned oil pipes and pipe joints, so as to form a complete oil circuit in the frame body.

[0029] In technical solution eight, in the vehicle frame body, if the directly fixedly connected pipes are an integral structure and are both provided with oil pipes, the oil pipes can be continuously laid out between the two pipes without interruption, and it is only necessary to provide pipe joints on the two pipes corresponding to the two ends of the oil pipes.

[0030] In technical solution nine, in the frame body, if the directly fixedly connected pipes are of split structure and are both provided with oil pipes, each pipe is provided with a section of oil pipe, and the connection of the oil pipes between the two pipes is achieved by docking the corresponding pipe joints of the two pipes.

[0031] In the technical solution ten, the two butt-jointed pipe joints can form a butt-jointed fitting relationship by means of a male-female plug-in method, and the male-female plug-in method enables one of the pipe joints to extend into the other pipe joint, and the connection between the two is tighter.

[0032] Technical solution eleven provides a bicycle frame handlebar connection structure. Since the above-mentioned oil circuit pre-buried structure is adopted in the bicycle frame, and the handlebar tube needs to be rotated relative to the head tube after being assembled to the head tube through the front bowl assembly, the handlebar tube and the head tube cannot form a direct docking and matching relationship through the above-mentioned joint. For this reason, in this technical solution, an oil jumper is provided, and the oil jumper includes an oil hose and two oil connectors. The two oil connectors can be respectively docked to the pipe connectors on the handlebar tube and the head tube, and then the two oil connectors are connected through the oil hose, so that the oil pipes on the handlebar tube and the head tube are connected as one. With such arrangement, when the handle tube rotates relative to the head tube, the pipe joint on the handle tube will change position relative to the joint on the head tube, but the two are connected by an oil jumper line, which can provide a margin for the distance change caused by such position change, so that the handle tube can rotate freely without being restricted by the head tube; and, compared with the method of directly docking the pipe joint on the handle tube with the pipe joint on the head tube and forming a rotational fit between the two pipe joints, in the connection structure provided by this technical solution, a firm connection can be formed between the oil joint and the pipe joint, and the change in position of the handle tube relative to the head tube is offset by the deformation of the oil pipe fitting, thereby improving the connection stability of the handle tube and the oil pipe in the head tube.

[0033] In technical solution twelfth, a first easing hole and a second easing hole corresponding to the position are set on the upper cover of the front headset and the head pipe, and the oil hose of the oil jumper passes through the two easing holes. The easing holes enable the oil hose to move between the easing holes when the handlebar tube is rotated relative to the head pipe, thereby avoiding interference of the front headset with the oil hose.

[0034] Technical solution thirteen provides a bicycle, which includes a frame, wherein the frame adopts the above-mentioned oil circuit pre-buried structure, and the oil circuit wiring of the bicycle is hidden in the frame, the appearance is simpler, and there is no need to assemble the brake line later, and the assembly difficulty is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 It is a structural schematic diagram of a bicycle frame involved in an embodiment of the present invention;

[0037] Figure 2 for Figure 1 Schematic diagram of the rear chainstay tube of a bicycle frame;

[0038] Figure 3 for Figure 1 Schematic diagram of the front fork tube of a bicycle frame;

[0039] Figure 4 for Figure 1 Schematic diagram of the handlebar tube of the bicycle frame;

[0040] Figure 5 It is a partial structural schematic diagram of a handlebar tube in a bicycle frame involved in an embodiment of the present invention;

[0041] Figure 6 It is a schematic diagram of an exploded structure of a bicycle frame involved in an embodiment of the present invention;

[0042] Figure 7 for Figure 6 A magnified schematic diagram of part A;

[0043] Figure 8 for Figure 6 A magnified schematic diagram of part B;

[0044] Fig. 9 The present invention is a schematic structural diagram of an oil delivery pipe and a pipe joint of a bicycle frame according to an embodiment of the present invention.

[0045] Description of main reference numerals:

[0046] Frame body 10; pipe 11; head pipe 110; second clearance hole 1101; cover 1102; open mouth 1103; down tube 111; front fork tube 112; rear down fork tube 113; handlebar tube 114; pipe wall 12; installation channel 121; countersunk hole 13;

[0047] Oil pipeline 20;

[0048] Pipe joint 30; insert 31; sealing ring 32;

[0049] Headset 40; upper cover 41; first clearance hole 42;

[0050] Oil delivery jumper 50; oil delivery hose 51; oil delivery connector 52;

[0051] Brake caliper 61; Brake handle 62. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0054] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0055] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0056] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0057] In the claims, specification and the above-mentioned drawings of the present invention, the term "interference fit" or its variation means: in mechanical assembly, the actual size of the shaft is larger than the actual size of the hole, a kind of fitting method that generates pressure between the two after assembly, and the algebraic difference between the hole and shaft sizes is a negative value.

[0058] In the claims, specification and the above-mentioned drawings of the present invention, the term "fit connection" or its variation means that the surfaces of two or more objects are in close contact and fit together, usually relying on friction, tightening force, adhesive or the fit of their own shapes to achieve connection, so that the various parts form a whole to a certain extent and can jointly withstand external forces.

[0059] In the claims, specification and the above-mentioned drawings of the present invention, the term "step-like" or its variation means that the surface (or contour) of the object presents a step-like shape, that is, it is composed of a series of planes (or approximate planes) of different heights (or depths) connected in sequence, and there is an obvious height difference between each two adjacent planes, just like the steps of a staircase.

[0060] In the claims, specification and the above drawings of the present invention, the term "docking" or its variation means: a method of connecting, transmitting materials or signals, etc. by directly opposing and bringing their ends together so that the connecting parts of the two connectors are in close contact on the same axis.

[0061] In the claims, specification and the above-mentioned drawings of the present invention, the term "male and female plug-in" or its variation means: two elements with a protruding part (male head) and a corresponding recessed part (female head), by inserting the male head into the female head, the two are tightly combined to achieve functions such as electrical connection, fluid transmission or mechanical fixation.

[0062] In the claims, specification and the above-mentioned drawings of the present invention, the term "rotational mounting" or its variations means that a component is mounted on another component in a manner that allows it to rotate around a certain axis, so that the component can perform circular motion relative to the mounting base during operation. It is often used in mechanical structures that require rotation functions, such as the installation of wheels on axles.

[0063] Example

[0064] The embodiment of the present invention relates to a bicycle, referring to Figure 1 , which shows a part of the bicycle, which mainly includes a frame, a brake handle 62 and a brake caliper 61. Other parts of the bicycle also include components such as a wheel set, a seat, a transmission, a pedal, and a chain set, which can adopt conventional technologies in the art and will not be described in detail here.

[0065] The bicycle frame involved in this embodiment includes a frame body 10, a head headset 40, an oil pipe 20, a pipe joint 30, an oil jumper 50 and related accessories. These accessories, such as bolts, are conventional accessories used when assembling the frame and will not be described in detail here.

[0066] The key point of the bicycle involved in this embodiment is that its bicycle frame adopts the oil circuit pre-embedded structure and handlebar connection structure provided by the present invention. The oil circuit pre-embedded structure and handlebar connection results are described in detail below.

[0067] As one aspect of the bicycle involved in this embodiment, the oil circuit pre-buried structure includes: a frame body 10, which is composed of a plurality of pipe fittings 11, and the pipe fittings 11 are formed by enclosing a pipe wall 12; an oil pipe 20, the oil pipe 20 is fixedly installed in at least one of the pipe fittings 11 of the frame body 10, the oil pipe 20 has an extension direction consistent with that of the pipe fitting 11, and the outer surface of the oil pipe 20 is closely connected to the pipe wall 12 of the pipe fitting 11; a pipe joint 30, every two of the pipe joints 30 are correspondingly connected to the two ends of one of the oil pipes 20, the pipe joints 30 are fixed to the pipe wall 12 of the pipe fitting 11 and exposed to the outside of the pipe fitting 11, and are provided with an insert 31 that extends into the oil pipe 20 and is interference fit with the inner wall of the oil pipe 20.

[0068] Reference Figure 1 The frame body 10 includes a plurality of pipes 11, which can be formed by integral molding or split assembly to form the frame body 10. In this embodiment, the pipes 11 of the frame body 10 are divided into a head tube 110, a down tube 111, an upper tube, a seat tube, a front fork tube 112, a rear lower fork tube 113, a rear upper fork tube and a handlebar tube 114 according to different positions and shapes in accordance with the conventional knowledge in the art. In this embodiment, the oil circuit in the oil circuit pre-embedded structure acts on the brake circuit, so in the frame body 10, the pipes 11 fixed with the oil delivery pipe 20 and the pipe joint 30 include the head tube 110, the down tube 111, the front fork tube 112, the rear lower fork tube 113 and the handlebar tube 114. Of course, in other embodiments, the oil pipe 20 and the pipe joint 30 may be provided only in the pipe fitting 11 of the frame body 10 for setting the brake line, for example, only in one or more of the head pipe 110, the down tube 111, the front fork tube 112, the rear lower fork tube 113 or the handlebar tube 114. In the pipe fitting 11 where the oil pipe 20 and the pipe joint 30 are not provided but the brake line is also required to be provided, the pipe fitting 11 provided with the oil pipe 20 and the pipe joint 30 can be docked and connected through the joint docking structure according to the existing external wiring or internal wiring method.

[0069] The pipe 11 is formed by enclosing the pipe wall 12. Fig. 9, which shows a partial cross-sectional structure of the head pipe 110. The pipe wall 12 may be formed as follows Fig. 9 However, as a whole, the pipe 11 still has a general extension direction, as shown in FIG. Figures 2 to 4 The structure of the rear lower fork tube 113, the front fork tube 112 and the handlebar tube 114 is shown. It should be noted that the extension direction referred to here is not a fixed straight line direction, but has a bending change during the extension process according to actual needs. For example, the rear lower fork tube 113 needs to be slightly bent outward when it is close to the center of the rear wheel assembly, or the handlebar tube 114 needs to be bent to form a structure that is convenient for the rider to hold. It should be understood that in the specification and claims of the present invention, the pipe 11 refers to the tubular component in the frame body 10, and the pipe wall 12 refers to the entity used to enclose each pipe 11.

[0070] The tube wall 12 of the tube 11 can be made entirely of carbon fiber material, or made of a composite material with carbon fiber, such as adding glass fiber, etc. Of course, in other embodiments, the tube wall 12 of the tube 11 can also be made of metal material, such as aluminum alloy, etc.

[0071] In this embodiment, the oil delivery pipe 20 is fixed in the pipe fitting 11 of the vehicle frame body 10, and the oil delivery pipe 20 located in the pipe fitting 11 has the same extension direction as the pipe fitting 11, and the outer surface of the oil delivery pipe 20 is closely connected to the pipe wall 12 of the pipe fitting 11. The oil delivery pipe 20 may include a body made of materials such as engineering plastics or copper tubes, and a glass fiber layer or a carbon fiber layer may be formed on the outer periphery of the body.

[0072] Reference Fig. 9, in the pipe fitting 11 in which the oil pipeline 20 is fixed, a hollow installation channel 121 is provided in the pipe wall 12 along the extension direction of the oil pipeline 20. Specifically, when the pipe fitting 11 is made of materials such as carbon fiber, the oil pipeline 20 can be placed in the middle of the multiple layers of carbon fiber combined into the pipe fitting 11 in advance, and then molded together with the carbon fiber. At this time, the position occupied by the oil pipeline 20 between the carbon fibers can form the above-mentioned installation channel 121, and because the oil pipeline 20 and the pipe fitting 11 are molded together, the outer wall of the oil pipeline 20 can form a tight fitting connection with the inner wall of the installation channel 121, and the oil pipeline 20 is tightly wrapped and fixed by the installation channel 121. The pipe joint 30 can be fixed to the pipe fitting 11 at the same time during the molding process of the pipe fitting 11, or after the pipe fitting 11 is molded, the pipe joint 30 is fixed to the pipe fitting 11 and its core 31 forms an interference fit with the oil pipeline 20. Such a configuration can not only reduce the subsequent assembly process of inserting the oil pipe 20 into the frame, but also form a firm connection between the oil pipe 20 and the pipe body. In addition, the pipe wall 12 of the pipe fitting 11 has high structural strength. After the oil pipe 20 is wrapped by the installation channel 121, the oil pressure it is subjected to will be transmitted to the pipe wall 12. Therefore, the thickness of the oil pipe 20 can be set thinner than that of the conventional brake line oil pipe, further increasing the inner diameter of the oil pipe 20 to facilitate the transmission of oil pressure.

[0073] Alternatively, in other embodiments, the outer surface of the oil pipeline 20 can be directly attached to the inner surface of the pipe wall 12. For example, during the molding process of the pipe 11, the oil pipeline 20 is placed at the innermost layer of the pipe wall 12, and then the oil pipeline 20 and the pipe 11 are molded together. Because the pipe 11 is made of carbon fiber material, the outer layer of the oil pipeline 20 can be directly connected to the inner surface of the pipe wall 12 during the hot molding process.

[0074] Furthermore, the pipe 11 fixed with the oil pipe 20 is made of carbon fiber material, and the oil pipe 20 is co-cured and formed with the installation channel 121. With such a configuration, the oil pipe 20 will not wobble in its radial direction, and the oil pipe 20 will also be fixedly connected to the pipe wall 12 in its extension direction, and the oil pipe 20 will not slide back and forth in the installation channel 121, which can further prevent the pipe joint 30 from being loosened from the pipe body due to the influence of the oil pipe 20.

[0075] In this embodiment, two pipe joints 30 are provided corresponding to each oil pipeline 20. The two pipe joints 30 are fixed to the pipe wall 12 of the pipe fitting 11 and exposed outside the pipe fitting 11, and the two pipe joints 30 are correspondingly connected to the two ends of the oil pipeline 20; the pipe joints 30 and the oil pipeline 20 are sealed and fixedly connected through an insert 31 which is provided on the pipe joints 30, extends into the oil pipeline 20, and is interference fit with the inner wall of the oil pipeline 20.

[0076] A countersunk hole 13 is recessed in the pipe wall 12 of the pipe fitting 11 ; the pipe joint 30 is embedded in the countersunk hole 13 and is closely connected to the inner wall surface of the countersunk hole 13 .

[0077] Specifically, refer to Fig. 9 , a downwardly recessed counterbore 13 is provided on the outer surface of the pipe wall 12, and a through hole penetrating the pipe wall 12 is provided at the bottom of the counterbore 13, and the position of the through hole corresponds to the end position of the oil pipe 20 in the pipe wall 12. As a further embodiment, the end of the oil pipe 20 can be inserted into the through hole at the bottom of the counterbore 13 to limit the end of the oil pipe 20. Corresponding to the counterbore 13, a pipe joint 30 is embedded and fixed in the counterbore 13, and a plug 31 extending along its axial direction is provided at the lower end of the pipe joint 30. The plug 31 is hollow inside and open at both ends. The plug 31 can pass through the through hole at the bottom of the counterbore 13, thereby extending into the oil pipe 20. The outer diameter of the plug 31 is adapted to the inner diameter of the oil pipe 20, so that the plug 31 can form an interference fit with the oil pipe 20 after being inserted into the oil pipe 20. The arrangement of the counterbore 13 allows the pipe joint 30 to have more contact area with the pipe wall 12 of the pipe fitting 11. At the same time, the inner peripheral wall of the counterbore 13 can limit the pipe joint 30 to ensure that the pipe joint 30 does not shake on the peripheral side. At the same time, the axial movement of the pipe joint 30, that is, the movement in the same direction as the extension direction of the oil pipeline 20, is limited because it is fixed to the oil pipeline 20, so the pipe joint 30 is less likely to loosen. At the same time, by setting the counterbore 13, the pipe joint 30 does not need to protrude from the outer wall surface of the pipe wall 12, or only protrudes slightly from the outer wall surface of the pipe wall 12, which not only facilitates the docking between the pipe joints 30, but also reduces the accumulation of dirt.

[0078] The pipe joint 30 can adopt a conventional joint structure. As a preferred solution, the pipe joint 30 adopts a joint structure that can be adapted to the butt-fit relationship of male and female plug-in. In the oil circuit pre-buried structure provided by the present invention, the pipe joint 30 is used to form a butt joint with the pipe joint 30 of other pipe fittings 11, or with the accessories of the bicycle, such as the brake handle 62, the brake caliper 61, etc. The pipe joint 30 is preferably made of a metal material with a relatively high hardness. The insert 31 is preferably formed integrally with the main body of the pipe joint 30.

[0079] It should be understood that in this specification and claims, the fitting connection referred to also includes a connection formed by co-curing molding. In this case, the surfaces of the oil pipe 20 and the pipe fitting 11, and the pipe joint 30 and the pipe fitting 11 are in contact with each other and connected as a whole during the curing molding process of the carbon fiber frame. The material of the oil pipe 20 and the pipe joint 30 can be different from the material of the carbon fiber frame, for example, a metal material. When a metal material is used, the oil pipe 20 and the pipe joint 30 will be wrapped by the carbon fiber frame and fixed in the carbon fiber splice under the pressure of the carbon fiber frame curing molding process.

[0080] In this embodiment, if it is used as a female connector, the structure of the pipe connector 30 can refer to Fig. 9 In this case, the pipe joint 30 has a groove, the bottom of which is connected to the insert 31. The groove can be used as a structure for other docking devices to cooperate with each other when inserted, so as to improve the stability during docking. Furthermore, a thread can be provided on the inner wall surface of the groove, and an external thread can be provided on the corresponding docking device as a male head, so as to further improve the docking stability through thread cooperation.

[0081] When the pipe wall 12 of the pipe fitting 11 is made of carbon fiber material, the pipe joint 30 can be placed at the corresponding position during the forming process of the pipe wall 12 , and the pipe joint 30 can be fixed at the counterbore 13 position of the pipe wall 12 during the forming process.

[0082] Furthermore, the pipe joint 30 and the counterbore 13 are co-cured and formed. For example, this forming method can further improve the firmness of the connection between the pipe joint 30 and the pipe wall 12 and reduce the risk of the pipe joint 30 loosening.

[0083] The inner wall surface of the counterbore 13 and the outer wall surface of the pipe joint 30 are in step shapes corresponding to each other. Fig. 9 , Fig. 9 The shapes of the counterbore 13 and the pipe joint 30 shown are shapes without step-shaped structures. On this basis, a step-shaped fitting structure can be provided on the counterbore 13 and the pipe joint 30, for example, a right-angle bend is formed on the inner wall of the counterbore 13 at the middle position of the axial direction, and a corresponding right-angle bend is formed at the middle position of the axial direction of the pipe joint 30. The contact area between the two is further increased by the cooperation between the steps, so that the pipe joint 30 can be more firmly installed on the pipe wall 12.

[0084] In addition, one or more sealing rings 32 may be installed between the pipe joint 30 and the countersunk hole 13 , so as to further improve the sealing performance between the pipe joint 30 and the countersunk hole 13 .

[0085] In the above-mentioned oil circuit pre-buried structure of the bicycle frame, by arranging the oil pipe 20 and the pipe joint 30 on the frame body 10, not only the brake circuit of the bicycle is hidden inside the frame, but also there is no need to thread the wires inside the frame, which greatly reduces the difficulty of assembly. Compared with the method of simply docking the oil pipe 20 with the pipe joint 30, in the present technical solution, a plug 31 is arranged on the pipe joint 30, and the plug 31 and the inner wall of the oil pipe 20 are interference fit, so that the pipe joint 30 can not only form a connection with the oil pipe 20, but also the interference fit method forces the oil pipe 20 or the plug 31 to elastically deform, so that the gap between the outer wall of the plug 31 and the inner wall of the oil pipe 20 is filled, and an effective seal can be formed between the pipe joint 30 and the oil pipe 20 without using a sealing ring 32. However, since the pipe joint 30 and the oil pipeline 20 are fixedly connected in the extension direction, and the pipe joint 30 is fixedly arranged on the pipe wall 12 of the pipe fitting 11, the shaking of the oil pipeline 20 in the pipe fitting 11 will cause the connection between the pipe joint 30 and the pipe wall 12 to become loose, and in turn affect the matching relationship between the pipe joint 30 and the oil pipeline 20. After long-term use, the pipe joint 30 is easy to fall off from the pipe wall 12. For this reason, in the present technical solution, the oil pipeline 20 is further fixedly arranged on the inner side of the pipe wall 12 of the pipe body. In this way, not only is the oil pipeline 20 hidden inside the pipe body, but also, since the position of the oil pipeline 20 is fixed, it will not shake in the pipe body, and will not affect the connection between the pipe joint 30 and the pipe wall 12. In addition, in the present technical solution, the oil pipeline 20 is not fixedly connected to the tube wall 12 of the tube body only at the portion connected to the pipe joint 30, but the entire oil pipeline 20 is fixedly connected to the tube wall 12. Such a configuration can further ensure that the oil pipeline 20 will not affect the pipe joint 30. At the same time, since the entire oil pipeline 20 no longer shakes, material fatigue caused by shaking and bending will not occur on the oil pipeline 20, thereby ensuring that the oil pipeline 20 has a long service life. During the normal service life, the oil pipeline 20 is not easy to be damaged, and there is no need to repair the fixedly connected oil pipeline 20, thereby reducing maintenance costs.

[0086] As one aspect of the bicycle involved in this embodiment, in the frame body 10, at least some of the pipes 11 that are directly fixedly connected are an integrated structure, and in at least two pipes 11 of the integrated structure and fixed with the oil pipe 20, the oil pipe 20 is continuously and uninterruptedly arranged in the two pipes 11.

[0087] Specifically, refer to Figure 1 and Figure 6, take the lower tube 111 and the head tube 110 as an example, the two tubes 11 are directly fixedly connected without other components, so the two tubes 11 can be an integral structure, that is, when the lower tube 111 and the head tube 110 are molded, the two are molded together, and the two form an integral structure. The lower tube 111 and the head tube 110 are both provided with an oil delivery pipe 20, and the oil delivery pipe 20 extends continuously and uninterruptedly in the two tubes 11, a pipe joint 30 is provided at the end position of the lower tube 111, and another pipe joint 30 is provided on the head tube 110, and the two pipe joints 30 are connected to the two ends of the oil delivery pipe 20 respectively. Of course, if the lower tube 111 and the rear lower fork tube 113 are also an integrally formed structure, then the oil delivery pipe 20 will continue to extend continuously and uninterruptedly to the end of the rear lower fork tube 113, and a pipe joint 30 is provided at this position, and the brake caliper 61 can directly form an oil circuit connection with the pipe joint 30.

[0088] In addition, in other embodiments, in the vehicle frame body 10, at least part of the directly fixedly connected pipes 11 are split structures, and in at least two pipes 11 of the split structure and fixed with the oil delivery pipe 20, the two pipes 11 are butted together through their respective pipe joints 30 to form a connection with the oil delivery pipe 20. Moreover, the two butted pipe joints 30 are butted and matched in a male-female butt-to-female manner.

[0089] Specifically, refer to Figure 1 and Figure 6 , take the lower tube 111 and the rear lower fork tube 113 as an example, the two pipes 11 are directly fixedly connected without other components, and the two pipes 11 can be a split structure, that is, the two are formed separately during molding and manufacturing, and then the two are assembled. In the lower tube 111 and the rear lower fork tube 113, there are oil delivery pipes 20, and the two oil delivery pipes 20 are connected to each other through a pipe joint 30. For example, a pipe joint 30 is set at the side position of the lower tube 111, and a pipe joint 30 is also set at the corresponding position of the rear lower fork tube 113. One of the two pipe joints 30 is a male head and the other is a female head, and the two are plugged into each other to form a docking relationship. At the same time, the rear lower fork tube 113 is locked to the lower tube 111 by fasteners such as bolts. At this time, the connection between the two pipe joints 30 is fixed, and the two are not easy to separate from each other.

[0090] Among them, refer to Figure 4 and Figure 5The handlebar tube 114 and the front fork tube 112 are also directly fixedly connected. At the same time, the two pipes 11 are necessarily split structures, and the front fork tube 112 needs to be provided with a brake caliper 61 of the front wheel, so the oil pipe 20 on the front fork tube 112 also needs to be connected with the oil pipe 20 in the handlebar tube 114. In addition, the handlebar tube 114 is rotatably connected with the head tube 110, and the oil pipe 20 in the head tube 110, the down tube 111 and the rear down fork tube 113 is connected with the brake caliper 61 of the rear wheel, so the handlebar tube 114 and the head tube 110 are rotatably connected and the oil pipe 20 needs to be connected. For this reason, two oil pipes 20 are provided in the handlebar tube 114, and the two oil pipes 20 are respectively provided on the left and right sides of the handlebar tube 114, and are respectively used to control the brake calipers 61 of the rear wheel and the front wheel.

[0091] In order to solve the problem of the oil pipe 20 being connected between the handle tube 114 and the head tube 110, as an aspect of the bicycle involved in this embodiment, the bicycle also adopts a handlebar connection structure provided by the present invention, and the handlebar connection structure is based on the above-mentioned oil circuit pre-buried structure of the bicycle frame, and the head tube 110 and the handle tube 114 of the frame body 10 are both fixedly provided with the oil pipe 20 and the pipe joint 30, and also include a front bowl assembly 40 and an oil jumper 50; the handle tube 114 is rotatably mounted on the head tube 110 through the front bowl assembly 40; the oil jumper 50 includes an oil hose 51 and two oil joints 52, and the two oil joints 52 are fixedly connected to the two ends of the oil hose 51, and are respectively connected to the pipe joints 30 on the handle tube 114 and the head tube 110 that are connected to the oil pipe 20 inside the two.

[0092] Specifically, the front headset 40 adopts a conventional headset structure, which is used to rotatably mount the front fork tube 112 and the handlebar tube 114 to the head tube 110. Figure 5 , Figure 6 and Fig. 9At the front end of the vertical rod connecting the handlebar 114 and the head tube 110, a downward pipe joint 30 is provided, and the oil pipe 20 connected to the pipe joint 30 is connected to the brake handle 62 corresponding to the rear wheel. At the same time, an upward pipe joint 30 is provided at the front side of the head tube 110, and an oil jumper 50 is provided between the two pipe joints 30. The two ends of the oil hose 51 of the oil jumper 50 are fixed with oil joints 52, and the two oil joints 52 are connected to the two pipe joints 30 respectively. Among them, the two oil joints 52 can be provided with external threads, and the internal threads are provided in the pipe joint 30. The two threads cooperate, so that the oil jumper 50 and the pipe joint 30 are fixedly connected without the need for an external fixing structure. Since the pipe joint 30 on the head pipe 110 needs to be arranged upward, an open opening 1103 is provided at the front side of the head pipe 110. The upper and lower edges of the open opening 1103 are folded inward to form a step surface, and the pipe joint 30 on the head pipe 110 is arranged on the step surface at the lower side. At the same time, a cover 1102 is provided. The cover 1102 is adapted to the shape and size of the open opening 1103 and can be embedded and fixed in the open opening 1103 to cover the open opening 1103 and shield the oil jumper 50 to prevent the oil jumper 50 from being exposed outside the vehicle frame.

[0093] Since the above-mentioned oil circuit pre-buried structure is adopted in the bicycle frame, and the handlebar tube 114 needs to be rotated relative to the head tube 110 after being assembled to the head tube 110 through the front bowl assembly 40, the handlebar tube 114 and the head tube 110 cannot form a direct docking and matching relationship through the above-mentioned joint. For this reason, in this technical solution, an oil jumper 50 is provided, and the oil jumper 50 includes an oil hose 51 and two oil connectors 52. The two oil connectors 52 can be docked to the handlebar tube 114 and the pipe connectors 30 on the head tube 110 respectively, and then the two oil connectors 52 are connected through the oil hose 51, so that the oil pipe 20 on the handlebar tube 114 and the head tube 110 are connected as a whole. With such arrangement, when the handle tube 114 rotates relative to the head tube 110, the pipe joint 30 on the handle tube 114 will change position relative to the joint on the head tube 110, but the two are connected by the oil jumper 50, which can provide a margin for the distance change caused by such position change, so that the handle tube 114 can rotate freely without being restricted by the head tube 110; and, compared with the method of directly docking the pipe joint 30 on the handle tube 114 with the pipe joint 30 on the head tube 110 and forming a rotational fit between the two pipe joints 30, in the connection structure provided by this technical solution, a firm connection can be formed between the oil joint 52 and the pipe joint 30, and the position change of the handle tube 114 relative to the head tube 110 is offset by the deformation of the oil pipe 20 11, thereby improving the connection stability between the handle tube 114 and the oil pipe 20 in the head tube 110.

[0094] Reference Figure 7 and Figure 8 The upper cover 41 of the front headset 40 is provided with a first clearance hole 42 extending along its circumferential direction and in an arc shape along its axial direction; the head pipe 110 is provided with a second clearance hole 1101 in an arc shape corresponding to the first clearance hole 42; the oil delivery hose 51 of the oil delivery jumper 50 passes through the first clearance hole 42 and the second clearance hole 1101. The first clearance hole 42 and the second clearance hole 1101 corresponding to the position are set on the upper cover 41 of the front headset 40 and the head pipe 110, and the oil delivery hose 51 of the oil delivery jumper 50 passes through the two clearance holes. The clearance holes can enable the oil delivery hose 51 to move between the clearance holes when the handlebar tube 114 rotates relative to the head pipe 110, so as to avoid the interference of the front headset 40 with the oil delivery hose 51.

[0095] As one aspect of the bicycle involved in this embodiment, a brake handle 62 and a brake caliper 61 are also installed on the bicycle frame. For example, a pipe joint 30 for forming an oil circuit connection with the brake handle 62 is provided on the handle tube 114. The brake handle 62 is fixedly installed on the handle tube 114 by fasteners such as bolts, and can be connected with the pipe joint 30 by a hose docking method, or a docking device corresponding to the pipe joint 30 on the handle tube 114 can be directly provided on the brake handle 62, and when the brake handle 62 is installed on the handle tube 114, the docking device is docked and connected with the pipe joint 30 on the handle tube 114. Similarly, the brake caliper 61 can also be connected with the pipe joint 30 on the rear lower fork tube 113 by a hose or a docking device.

[0096] The bicycle involved in the embodiment of the present invention includes a frame, wherein the frame adopts the above-mentioned oil circuit pre-buried structure, and the oil circuit wiring of the bicycle is hidden in the frame, the appearance is simpler, and there is no need to assemble the brake line later, and the assembly difficulty is low.

[0097] The description of the above specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation on the protection scope of the present invention. Through the enlightenment of the present invention or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent substitutions or other improvements to the embodiments of the present invention or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the present invention.

Claims

1. An oil line pre-buried structure for a bicycle frame, characterized in that: include: A vehicle frame body (10) is composed of a plurality of pipe members (11), wherein the pipe members (11) are enclosed by pipe walls (12); An oil delivery pipe (20), wherein the oil delivery pipe (20) is fixedly arranged in at least one of the pipes (11) of the frame body (10), the oil delivery pipe (20) has an extension direction consistent with that of the pipe (11), and the outer surface of the oil delivery pipe (20) is closely connected to the pipe wall (12) of the pipe (11); A pipe joint (30), each two of the pipe joints (30) are correspondingly connected to the two ends of an oil delivery pipe (20), the pipe joints (30) are embedded in the pipe wall (12) of the pipe fitting (11) and exposed outside the pipe fitting (11); the pipe joint (30) and the oil delivery pipe (20) are sealed and fixedly connected via an insert (31) which is arranged on the pipe joint (30), extends into the oil delivery pipe (20) and is interference-fitted with the inner wall of the oil delivery pipe (20).

2. The oil circuit pre-buried structure of a bicycle frame as claimed in claim 1, characterized in that: In the pipe fitting (11) in which the oil delivery pipe (20) is fixedly mounted, a hollow installation channel (121) is provided in the pipe wall (12) along the extension direction of the oil delivery pipe (20); the oil delivery pipe (20) is located in the installation channel (121) and is closely connected to the inner wall of the installation channel (121).

3. The oil circuit pre-buried structure of a bicycle frame as claimed in claim 2, characterized in that: The pipe member (11) on which the oil delivery pipe (20) is fixedly mounted is made of carbon fiber material, and the oil delivery pipe (20) and the installation channel (121) are co-cured and formed.

4. The oil circuit pre-buried structure of a bicycle frame as claimed in claim 2, characterized in that: The pipe wall (12) of the pipe fitting (11) is recessed with a countersunk hole (13); the pipe joint (30) is embedded in the countersunk hole (13) and is closely connected to the inner wall surface of the countersunk hole (13).

5. The oil circuit pre-buried structure of a bicycle frame as claimed in claim 4, characterized in that: The pipe fitting (11) on which the oil delivery pipe (20) is fixedly mounted is made of carbon fiber material, and the pipe joint (30) and the counterbore (13) are co-cured and formed.

6. The oil line pre-buried structure of a bicycle frame as claimed in claim 4, characterized in that: The inner wall surface of the counterbore (13) and the outer wall surface of the pipe joint (30) are in step shapes corresponding to each other.

7. The oil line pre-buried structure of a bicycle frame as claimed in claim 1, characterized in that: In the frame body (10), the pipe fitting (11) on which the oil delivery pipe (20) and the pipe joint (30) are fixedly mounted comprises a head pipe (110), a down pipe (111), a front fork pipe (112), a rear down fork pipe (113) and / or a handlebar pipe (114).

8. The oil line pre-buried structure of a bicycle frame as claimed in claim 7, characterized in that: In the vehicle frame body (10), at least a portion of the pipes (11) that are directly fixedly connected are an integrated structure, and in at least two pipes (11) of the integrated structure and fixed with the oil delivery pipe (20), the oil delivery pipe (20) is continuously and uninterruptedly arranged in the two pipes (11).

9. The oil channel pre-buried structure of a bicycle frame as claimed in claim 7, characterized in that: In the frame body (10), at least part of the pipes (11) that are directly fixedly connected are of a split structure. In at least two pipes (11) of the split structure that are fixed with the oil delivery pipe (20), the two pipes (11) are butt-jointed via respective pipe joints (30) to form a connection of the oil delivery pipe (20).

10. The oil channel pre-buried structure of a bicycle frame as claimed in claim 9, characterized in that: The two butted pipe joints (30) are butted in a male-female butt-to-female manner.

11. A bicycle frame handlebar connection structure, based on the oil line pre-buried structure of the bicycle frame according to any one of claims 1 to 10, wherein the head pipe (110) and the handle pipe (114) of the frame body (10) are both fixedly provided with the oil delivery pipe (20) and the pipe joint (30), wherein: It also includes a headset (40) and an oil transfer jumper (50); The handlebar tube (114) is rotatably mounted on the head tube (110) via the head bowl assembly (40); The oil delivery jumper (50) comprises an oil delivery hose (51) and two oil delivery connectors (52). The two oil delivery connectors (52) are fixedly connected to the two ends of the oil delivery hose (51) and are respectively connected to the pipe connectors (30) on the handle pipe (114) and the head pipe (110) and are connected to the oil delivery pipe (20) inside the handle pipe (114) and the head pipe (110).

12. A bicycle frame handlebar connection structure as claimed in claim 11, characterized in that: The upper cover (41) of the head bowl assembly (40) is provided with a first clearance hole (42) extending along its circumference and in an arc shape along its axial direction; the head pipe (110) is provided with a second clearance hole (1101) in an arc shape corresponding to the first clearance hole (42); and the oil delivery hose (51) of the oil delivery jumper (50) passes through the first clearance hole (42) and the second clearance hole (1101).

13. A bicycle comprising a frame, characterized in that: The frame adopts the oil circuit pre-buried structure of the bicycle frame as described in any one of claims 1-10.

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