Bicycle oil pressure brake transmission piece

Abstract

The utility model discloses a bicycle oil pressure brake transmission part which comprises a rotating part and a fixed part which are respectively sleeved on a bicycle front fork upper pipe, the rotating part is sleeved in the fixed part and can rotate in the fixed part, at least one oil inlet channel is arranged in the rotating part, and the oil inlet channel is communicated with the oil inlet channel. An oil inlet channel is formed in the fixing piece, at least one first oil inlet and at least one first oil outlet are formed in the oil inlet channel, a first annular groove is formed in the side wall of the inner side of the fixing piece in a surrounding mode, at least one oil outlet channel is formed in the fixing piece, at least one second oil inlet and at least one second oil outlet are formed in the oil outlet channel, and a second annular groove is formed in the side wall of the inner side of the fixing piece. And when the rotating piece is sleeved in the fixed piece, the first oil outlet is communicated with the first ring groove. No matter how a user rotates the handlebar, brake oil can flow into the brake calipers through the rotating piece and the fixing piece, the problem of brake failure caused by the fact that an oil pipe is wound around the upper pipe is solved, the brake effectiveness is improved, and meanwhile the whole riding safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of brake transmission parts, in particular to a bicycle hydraulic brake transmission part. Background Art

[0002] Bicycle hydraulic brakes are a type of brake that mainly relies on a hydraulic transmission system. The principle is that when the rider operates the brake handle, the piston in the handle pushes the brake oil. The brake oil flows to the brake caliper through the oil pipe. Inside the brake caliper, the brake oil pushes the piston, which in turn causes the brake pad to rub against the brake disc of the wheel to achieve the braking effect.

[0003] The existing hydraulic brake has an oil pipe directly connecting the brake handle and the brake caliper. However, if the rider rotates the bicycle handle significantly, the oil pipe may be entangled on the upper tube of the front fork, which may cause the oil pipe to be blocked or its internal pressure to be unstable, resulting in brake failure and further causing riding danger. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides a bicycle hydraulic brake transmission component, including a rotating component and a fixed component respectively sleeved on the upper tube of a bicycle front fork, the fixed component is fixed to the upper tube, the rotating component is sleeved in the fixed component and can rotate in the fixed component, at least one oil inlet channel is arranged in the rotating component, the oil inlet channel is respectively formed with at least one first oil inlet port and a first oil outlet port on the outer side wall of the rotating component, a first annular groove is arranged on the inner side wall surrounding the fixed component, at least one oil outlet channel is arranged on the inner side of the fixed component, the oil outlet channel is respectively formed with at least one second oil inlet port and a second oil outlet port in the first annular groove of the fixed component and on the outer side wall of the fixed component, when the rotating component is sleeved in the fixed component, the first oil outlet port is connected to the first annular groove.

[0005] Furthermore, the rotating member includes a first connecting member, an inner ring portion is arranged in the first connecting member, the inner ring portion is sleeved on the upper tube, the inner ring portion has an annular member extending along one side of the end surface of the first connecting member, the fixed member is sleeved around the annular member, and when the rotating member rotates in the fixed member, the annular member rotates in the fixed member.

[0006] Furthermore, the first oil inlet is arranged on the outer side wall of the first connecting member, the first oil outlet is arranged on the outer side wall of the annular member, and the oil inlet channel is arranged inside the first connecting member, the inner ring portion and the annular member.

[0007] Furthermore, the first annular groove includes two protrusions protruding outward along the inner wall of the fixing member, a recessed portion is arranged between the protrusions, and the second oil inlet is arranged in the recessed portion. When the first oil outlet is connected to the first annular groove, one side of the protrusion is tightly attached to the outer wall of the annular member around the first oil outlet.

[0008] Furthermore, a second annular groove is provided on the outer wall of the annular member. When the first oil outlet is connected to the first annular groove, the second annular groove corresponds to the position of the first annular groove, and the first oil outlet is provided in the second annular groove.

[0009] Furthermore, a third annular groove is provided on the inner wall of the fixing member near the first annular groove, and a sealing ring is provided in the third annular groove.

[0010] Furthermore, a sliding bearing is provided between the annular member and the inner wall of the fixing member.

[0011] Furthermore, the sliding bearing is arranged at the top or bottom of the fixing member.

[0012] Furthermore, an oil filling port is arranged on the top of the inner ring portion, and the oil filling port is communicated with the oil inlet channel.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the present application, when the handlebars of a bicycle are rotated during riding, the rotating member will be driven to rotate in the fixed member. Since a first annular groove is provided in the fixed member and the first oil outlet is connected to the first annular groove, when the rotating member rotates in the fixed member, the first oil outlet also rotates in the first annular groove. Therefore, no matter how the user rotates the handlebars, the brake oil can flow into the brake caliper through the rotating member and the fixed member, and will not cause the problem of brake failure due to the oil pipe being entangled on the upper tube. This improves the braking effectiveness while also improving the safety of the entire riding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the overall structure assembly of the first embodiment of the utility model;

[0017] Figure 2This is an exploded view of the overall structure of the first embodiment of the utility model;

[0018] Figure 3 This is a schematic structural diagram of a fixing member of the first embodiment of the utility model;

[0019] Figure 4 This is a structural cross-sectional view of a rotating member of the first embodiment of the utility model;

[0020] Figure 5 This is a structural cross-sectional view of a fixing member of the first embodiment of the utility model;

[0021] Figure 6 This is a cross-sectional view of the overall structure of the first embodiment of the utility model;

[0022] Figure 7 This is a schematic diagram of the overall structure assembly of the second embodiment of the utility model;

[0023] Figure 8 It is a cross-sectional view of the overall structure of the second embodiment of the utility model;

[0024] Fig. 9 This is a cross-sectional view of the overall structure of the second embodiment of the utility model from another angle.

[0025] The reference numerals and names in the figures are as follows:

[0026] The upper tube 10, the rotating member 100, the fixing member 200, the oil inlet passage 110, the first oil inlet port 120, the first oil outlet port 130,

[0027] The first annular groove 210 , the oil outlet channel 220 , the second oil inlet 230 , the second oil outlet 240 , the first connecting member 140 , the inner ring portion 150 , the annular member 160 , the protrusion 211 , the recess 212 , the second annular groove 170 , the third annular groove 180 , the sealing ring 181 , the sliding bearing 300 , and the oil filling port 141 . DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. 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.

[0029] The utility model is described in more detail. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements between them.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. In the description of the present utility model, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning, and therefore cannot be understood as limiting the scope of protection of the present utility model. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0032] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0033] The preferred implementation of the utility model is now further described in conjunction with the accompanying drawings. Figures 1 to 5As shown, a bicycle hydraulic brake transmission component includes a rotating component 100 and a fixed component 200 respectively sleeved on the upper tube 10 of the bicycle front fork, wherein the fixed component 200 is fixed to the upper tube 10, the rotating component 100 is sleeved in the fixed component 200 and can rotate in the fixed component 200, an oil inlet channel 110 is arranged in the rotating component 100, and the oil inlet channel 110 is respectively formed with a first oil inlet port 120 and a first oil outlet port 130 on the outer side wall of the rotating component 100, The first oil inlet 120 is connected to the brake handle through an oil pipe (not shown in the figure), a first annular groove 210 is provided on the inner side wall surrounding the fixing member 200, an oil outlet channel 220 is provided on the inner side of the fixing member 200, and the oil outlet channel 220 is respectively formed with a second oil inlet 230 and a second oil outlet 240 in the first annular groove 210 of the fixing member 200 and on the outer side wall of the fixing member 200, and the second oil outlet is connected to the brake caliper through an oil pipe (not shown in the figure). Figure 6 As shown, when the rotating member 100 is sleeved in the fixed member 200, the first oil outlet 130 is connected to the first annular groove 210, so that the brake oil can flow into the oil inlet channel 110 through the first oil inlet 120, flow out from the first oil outlet 130 to fill the first annular groove 210, then enter the oil outlet channel 220 from the second oil inlet 230, and finally flow out from the second oil outlet 240. In this way, when the user is riding, since the handlebar is also installed on the upper tube 10, when the handlebar is rotated, the brake handle also rotates accordingly, so the rotating member 100 is driven to rotate in the fixed member 200 through the oil pipe. Since the first annular groove 210 is provided in the fixed member 200 and the first oil outlet 130 is connected to the first annular groove 210, when the rotating member 100 rotates in the fixed member 200, the first oil outlet 130 also rotates in the first annular groove 210. Therefore, no matter how the user rotates the handlebar, the brake oil can flow into the brake caliper through the rotating member 100 and the fixed member 200, and will not cause the problem of brake failure due to the oil pipe entangled in the upper tube 10, thereby improving the braking effectiveness while also improving the safety of the entire riding.

[0034] On the basis of the above embodiments, Figure 2As shown, the rotating member 100 includes a first connecting member 140, and an inner ring portion 150 is arranged inside the first connecting member 140. The inner ring portion 150 is sleeved on the upper tube 10, and an annular member 160 is extended from the inner ring portion 150 along one side of the end surface of the first connecting member 140. The fixed member 200 is sleeved around the annular member 160. When the rotating member 100 rotates inside the fixed member 200, the annular member 160 rotates inside the fixed member 200, so that a part of the rotating member 100 can be exposed outside the fixed member 200 to connect to the external oil pipe, so that the brake oil can enter the rotating member 100 from the outside, and the other part of the rotating member 100 can be sleeved with the fixed member 200, so that the brake oil can be mutually conducted between the rotating member 100 and the fixed member 200.

[0035] In some embodiments, in combination Figure 2 and Figure 4 As shown, the first oil inlet 120 is arranged on the outer side wall of the first connecting member 140, the first oil outlet 130 is arranged on the outer side wall of the annular member 160, and the oil inlet channel 110 is arranged inside the first connecting member 140, the inner ring portion 150 and the annular member 160. In this way, after the brake oil enters the first connecting member 140 from the first oil inlet 120, it flows along the inner ring portion 150 and the annular member 160 in sequence, and finally flows out from the first oil outlet 130, thereby ensuring that when the brake oil enters the rotating member 100, the entire flow path is inside the rotating member 100 while ensuring that the rotating member 100 can rotate in the fixed member 200.

[0036] On the basis of the above embodiments, Figure 3 and Figure 5 As shown, the first annular groove 210 includes two protrusions 211 protruding outward along the inner wall of the fixing member 200, a recessed portion 212 is arranged between the protrusions 211, and the second oil inlet 230 is arranged in the recessed portion 212. When the first oil outlet 130 is connected to the first annular groove 210, one side of the protrusion 211 is tightly attached to the outer wall of the annular member 160 around the first oil outlet 130. In this way, when the brake oil flows out from the first oil outlet 130, since one side of the protrusion 211 is tightly attached to the first oil outlet 130, the leakage of the brake oil from the first groove can be reduced, thereby avoiding brake failure caused by unstable brake oil pressure.

[0037] On the basis of the above embodiments, Figure 2As shown, a second annular groove 170 is provided on the outer wall of the annular member 160. When the first oil outlet 130 is connected to the first annular groove 210, the second annular groove 170 corresponds to the position of the first annular groove 210. The first oil outlet 130 is arranged in the second annular groove 170. Since the positions of the second annular groove 170 and the first annular groove 210 correspond, the connection between the two is equivalent to expanding the space for accommodating brake oil. Therefore, after the brake oil flows out from the first oil outlet 130, there is a larger space to accommodate the brake oil flowing out from the first oil outlet 130, thereby avoiding a large amount of brake oil flowing out of the first oil outlet 130 when braking suddenly, resulting in excessive pressure in the first annular groove 210 and leakage of brake oil from between the first annular groove 210 and the annular member 160.

[0038] In some embodiments, in combination Figure 3 , Figure 5 and Figure 6 As shown, a third annular groove 180 is further provided on the inner wall of the fixing member 200 near the first annular groove 210. It should be noted that the third annular groove 180 can be provided on one side of the first annular groove 210 or on both sides of the first annular groove 210, and no specific limitation is made here. It can also be known that the number of the third annular groove 180 can be multiple, that is, multiple third annular grooves 180 can be provided on the outer side of the third annular groove 180, and their functions are the same. A sealing ring 181 is provided in the third annular groove 180, so that when the brake oil leaks between the first annular groove 210 and the annular member 160, the third annular groove 180 and the sealing ring 181 can prevent the leakage from continuing to expand.

[0039] In some embodiments, Figure 6 As shown, a sealed sliding bearing 300 may be further disposed between the inner wall of the annular member 160 and the fixing member 200, and the sealed sliding bearing 300 may further improve the smoothness of rotation between the annular member 160 and the inner wall of the fixing member 200. In some embodiments, the sealed sliding bearing 300 is disposed at the top or bottom of the fixing member 200.

[0040] On the basis of the above embodiments, Figure 2 As shown, an oil filling port 141 is provided at the top of the inner ring portion 150 , and the oil filling port 141 is communicated with the oil inlet channel 110 . When the oil pressure is unstable due to brake oil leakage, the stability of the oil pressure can be maintained by adding brake oil into the oil filling port 141 .

[0041] The present application also provides a second embodiment, combining Figures 7 to 9As shown, the difference between it and the first embodiment lies in that the number of the oil inlet channels 110 provided in the rotating member 100 is two, and the number of the first oil inlet port 120 and the first oil outlet port 130 formed on the outer side wall of the rotating member 100 by the oil inlet channel 110 is also two, and at the same time, the number of the oil outlet channels 220 provided on the inner side of the fixed member 200, and the number of the second oil inlet port 230 and the second oil outlet port 240 formed on the first annular groove 210 of the fixed member 200 and on the outer side wall of the fixed member 200 by the oil outlet channel 220 are also two, so that the first oil inlet port 120 can be respectively connected to the two brake handles on the handlebar, and the second oil outlet port 240 can be respectively connected to the brake calipers of the front brake and the rear brake, so that the present application scheme can be applied not only to a single brake, but also to both the front brake and the rear brake.

[0042] The above exemplary embodiments are detailed, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, so it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A bicycle hydraulic brake transmission component, characterized in that: The invention comprises a rotating member (100) and a fixing member (200) which are respectively sleeved on an upper tube (10) of a bicycle front fork, wherein the fixing member (200) is fixed to the upper tube (10), the rotating member (100) is sleeved in the fixing member (200) and can rotate in the fixing member (200), the rotating member (100) is provided with at least one oil inlet channel (110), and the oil inlet channel (110) is respectively formed with at least one first oil inlet port (120) and a first oil outlet port (130) on an outer side wall of the rotating member (100), surrounding A first annular groove (210) is provided on the inner side wall of the fixing member (200), and at least one oil outlet channel (220) is provided on the inner side of the fixing member (200). The oil outlet channel (220) is respectively formed with at least one second oil inlet (230) and a second oil outlet (240) in the first annular groove (210) of the fixing member (200) and on the outer side wall of the fixing member (200). When the rotating member (100) is sleeved in the fixing member (200), the first oil outlet (130) is in communication with the first annular groove (210).

2. The bicycle hydraulic brake transmission component according to claim 1, characterized in that: The rotating member (100) comprises a first connecting member (140), an inner ring portion (150) is arranged inside the first connecting member (140), the inner ring portion (150) is sleeved on the upper tube (10), an annular member (160) is extended from the inner ring portion (150) along one side of the end surface of the first connecting member (140), the fixing member (200) is sleeved around the annular member (160), and when the rotating member (100) rotates inside the fixing member (200), the annular member (160) rotates inside the fixing member (200).

3. The bicycle hydraulic brake transmission component according to claim 2, characterized in that: The first oil inlet (120) is arranged on the outer side wall of the first connecting member (140), the first oil outlet (130) is arranged on the outer side wall of the annular member (160), and the oil inlet channel (110) is arranged inside the first connecting member (140), the inner ring portion (150) and the annular member (160).

4. The bicycle hydraulic brake transmission component according to claim 2, characterized in that: The first annular groove (210) comprises two protrusions (211) protruding outward along the inner wall of the fixing member (200), a recessed portion (212) is arranged between the protrusions (211), and the second oil inlet (230) is arranged in the recessed portion (212); when the first oil outlet (130) is connected to the first annular groove (210), one side of the protrusion (211) is tightly attached to the outer wall of the annular member (160) around the first oil outlet (130).

5. The bicycle hydraulic brake transmission component according to claim 4, characterized in that: A second annular groove (170) is arranged on the outer wall of the annular member (160); when the first oil outlet (130) is connected to the first annular groove (210), the second annular groove (170) corresponds to the position of the first annular groove (210), and the first oil outlet (130) is arranged in the second annular groove (170).

6. The bicycle hydraulic brake transmission component according to claim 1, characterized in that: A third annular groove (180) is also provided on the inner wall of the fixing member (200) at a position close to the first annular groove (210), and a sealing ring (181) is provided in the third annular groove (180).

7. The bicycle hydraulic brake transmission component according to claim 2, characterized in that: A sliding bearing (300) is also provided between the annular member (160) and the inner wall of the fixing member (200).

8. The bicycle hydraulic brake transmission component according to claim 7, characterized in that: The sliding bearing (300) is arranged on the top or bottom of the fixing member (200).

9. The bicycle hydraulic brake transmission component according to claim 2, characterized in that: An oil filling port (141) is provided at the top of the inner ring portion (150), and the oil filling port (141) is communicated with the oil inlet channel (110).

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