Bicycle front end structure for rotary passage of brake fluid, and bicycle

Abstract

A bicycle front end structure for rotary passage of a brake fluid, and a bicycle. The bicycle front end structure for rotary passage of a brake fluid is used in conjunction with a bicycle frame, and further comprises: a main core member (10), which is cylindrical and at least comprises: a first brake fluid passage (100) and a second brake fluid passage (101) which are axially provided inside the main core member (10); a first core portion (102) and a second core portion (103) which are sequentially arranged in an axial direction; a first annular groove (104) provided on the annular outer wall of the first core portion (102); and a first brake fluid inlet radially provided on the second core portion (103) and communicated with a first end of the first brake fluid passage (100), a first brake fluid outlet axially communicated with a second end of the first brake fluid passage (100), and a second brake fluid inlet radially provided on the second core portion (103) and communicated with a first end of the second brake fluid passage (101), wherein a second end of the second brake fluid passage (101) is radially communicated with the first annular groove (104); and a rotary member (40) at least comprising a rotary sleeve (401), a second brake fluid outlet (403) radially communicated with the first annular groove (104) being provided on the side wall of the rotary sleeve (40) corresponding to the first annular groove (104). The bicycle front end structure for rotary passage of a brake fluid realizes concealed assembly of a brake fluid hose, and the brake fluid hose does not cause interference when a bicycle turns, thereby achieving smooth riding.

Description

A rotary oil passing front structure of a bicycle and the bicycle TECHNICAL FIELD

[0001] The present application relates to the technical field of bicycle accessories, in particular to a rotary oil passing front structure of a bicycle and the bicycle. BACKGROUND

[0002] At present, the common brake oil pipe routing methods of various bicycles on the market mainly adopt internal routing in the frame part, that is, the oil pipe connected to the rear brake lower pump is extended to the inside of the upright column, and the oil pipe connected to the front brake lower pump is directly routed externally.

[0003] The exposed brake oil pipe not only has poor appearance, but also may be touched by external objects during riding, affecting the safety and experience of riding. At the same time, the oil pipe internally routed in the frame part needs to be as short as possible for the sake of appearance, but this raises a new problem, that is, when the vehicle turns, the internally routed oil pipe will be pulled or twisted with the rotation of the upright column, which is a big safety hazard and greatly reduces the service life of the oil pipe.

[0004] Therefore, the present application provides a rotary oil passing front structure of a bicycle and the bicycle. SUMMARY

[0005] The present application provides a rotary oil passing front structure of a bicycle and the bicycle to at least solve the problems of the exposed brake oil pipe in the prior art, which not only has poor appearance, but also may be touched by external objects during riding, affecting the safety and experience of riding. At the same time, when the vehicle turns, the internally routed oil pipe will be pulled or twisted with the rotation of the upright column, which is a big safety hazard and greatly reduces the service life of the oil pipe.

[0006] In a first aspect, the present application provides a rotary oil passing front structure, which is used in combination with a bicycle frame having a pipe body, and further comprising:

[0007] a main core member in the shape of a column and comprising at least a first oil channel and a second oil channel axially opened in the inside of the main core member, a first core portion and a second core portion arranged axially in sequence, a first annular groove opened on the annular outer wall of the first core portion, a first oil inlet radially opened in the second core portion and communicating with the first end of the first oil channel, a first oil outlet axially communicating with the second end of the first oil channel, and a second oil inlet radially opened in the second core portion and communicating with the first end of the second oil channel; wherein the second end of the second oil channel radially communicates with the first annular groove;

[0008] A rotating member, which at least comprises a rotating sleeve, the rotating sleeve movably sleeved on the second core part at a position corresponding to the first annular groove, and a second oil outlet radially communicating with the first annular groove is formed on the side wall of the rotating sleeve corresponding to the first annular groove;

[0009] A locking member arranged on the second core part to achieve axial positioning of the main core member on the pipe member.

[0010] Optionally, the rotating member further comprises:

[0011] A hierarchical step arranged in the middle of the axial inner wall of the rotating sleeve and located at the first annular groove after assembly, and first and second groove positions are sequentially formed on both sides of the axial inner wall of the rotating sleeve from the middle to both sides, wherein the second oil outlet is formed at the middle position of the hierarchical step;

[0012] Two rotating sealing rings are arranged in the first groove position and sleeved on the annular outer wall of the first core part to prevent oil leakage of the first annular groove;

[0013] Two bearings are arranged in the second groove position, and the inner ring of the bearing is tightly fitted with the first core part to maintain the rotating assembly of the rotating member on the main core member.

[0014] Optionally, the opposite sides of the two bearings are pressed tightly and axially position the rotating sealing rings after assembly to seal the second oil channel.

[0015] Optionally, the annular side wall of the first core part is further provided with a first protruding ring part, and the locking member comprises:

[0016] A first locking member sleeved on the second core part and limited by the first protruding ring part, and the outer end edge of the first locking member abuts against the edge of the first end of the pipe member;

[0017] A second locking member arranged on the second end of the pipe member and threadedly assembled with the second end of the second core part to axially position the main core member and the rotating member in cooperation with the first locking member;

[0018] The pipe member is a head pipe fixed to the front end of the bicycle frame.

[0019] Optionally, the second locking member comprises:

[0020] A first nut member threadedly assembled on the second core part to axially position the rotating member in cooperation with the first locking member;

[0021] a first locking sleeve, a first end of which is fitted to a free end of the second core, and a second end of which is integrally formed with a first annular stepped flange;

[0022] a locking hole formed in a side wall of the first locking sleeve to cooperate with a locking bolt fitted therein to fix the fitting position of the first locking sleeve;

[0023] a buckle slot formed in the second end of the pipe member and cooperating with the first annular flange to form a buckling structure.

[0024] Optionally, the second locking member comprises:

[0025] a second locking sleeve, a first end of which is fitted to a second end of the second core, and a first end of which abuts against the rotary member to axially position the rotary member with the first locking member, wherein a second end of the second locking sleeve is integrally formed with a second annular stepped flange;

[0026] a second nut member arranged in a fitting slot formed in a middle portion of the second locking sleeve and threadedly fitted to the second end of the second core to abut against and position the fitting position of the rotary member;

[0027] a locking block inserted into a key slot formed between the second locking sleeve and the second core to radially position the second locking sleeve;

[0028] a first bowl assembly, a first end of which is fitted to the second end of the second locking sleeve and abuts against the second annular flange, and a second end of which is integrally formed with a third annular stepped flange, the third annular flange abutting against the second end of the pipe member to form a buckling structure.

[0029] Optionally, the first oil outlet is connected with a third oil pipe extending along an outer wall of the rotary member through a movable oil plug, and a part of the movable oil plug and the third oil pipe are hiddenly fitted in an oil pipe chamber formed in a side wall of the pipe member.

[0030] Optionally, the second oil passage is composed of a first oil section and a second oil section in straight-line communication, and a second oil seal plug is arranged between the first oil section and the second oil section, and a first oil seal plug is arranged at an opening of the second oil section;

[0031] the first oil section communicates with the first annular groove and the second oil inlet, and the second oil section communicates with the first oil passage and the first oil inlet in series.

[0032] Optionally, the first core comprises a first core section and a second core section, the first core section and the second core section are arranged axially and fixed to a first end of the second core by a plurality of long pins.

[0033] Optionally, the first core part comprises:

[0034] an inner core body axially arranged at the first end of the second core part, an annular outer wall of the inner core body being provided with a second annular groove radially communicating with the first end of the first oil passage and a third annular groove radially communicating with the first end of the second oil passage;

[0035] an outer core sleeve fixedly sleeved on the inner core body at positions corresponding to the second annular groove and the third annular groove, the first oil inlet being formed through the outer core sleeve at a position corresponding to the second annular groove to communicate with the first oil passage, and the second oil inlet being formed through the outer core sleeve at a position corresponding to the third annular groove to communicate with the second oil passage.

[0036] Optionally, an annular sealing groove is formed on the inner wall of the outer core sleeve, the number of the annular sealing grooves is at least three, and the annular sealing grooves are respectively formed at positions corresponding to the outer edge of the second annular groove, the position between the second annular groove and the third annular groove, and the outer edge of the third annular groove, and O-shaped sealing rings are arranged in the annular sealing grooves to prevent oil leakage of the second annular groove and the third annular groove.

[0037] Optionally, the outer diameter of the inner core body is smaller than the outer diameter of the second core part to form an assembly step in a staggered manner.

[0038] The first end of the inner core body is further provided with a tensioning member, and the outer core sleeve is assembled between the tensioning member and the assembly step to be axially positioned.

[0039] Optionally, the tensioning member comprises:

[0040] a tensioning cavity formed in the axial middle part of the first end of the outer core sleeve and cooperating with the first end of the inner core body to form an annular tensioning assembly groove;

[0041] at least one tensioning ring assembled in the tensioning assembly groove;

[0042] an upper gland having a pressing edge portion formed at the inner end thereof, and being connected to the first end of the inner core body through an axially arranged gland bolt;

[0043] wherein the second end of the outer core sleeve is assembled to abut against the second end of the assembly step after assembly, and the pressing edge portion is assembled to press the tensioning ring to axially position the outer core sleeve.

[0044] Optionally, the annular side wall of the second core part is provided with a second protruding ring portion, and the second end of the outer core sleeve is provided with a third protruding ring portion, and the rotating member is assembled between the second protruding ring portion and the third protruding ring portion to be axially limited.

[0045] Optionally, the locking member comprises:

[0046] The second bowl set is provided with a bowl set bolt for adjusting the inner diameter of the second bowl set, wherein the tubular member is a front fork vertical pipe which is sleeved on the second end of the second core and is compressed outside the second bowl set to be fixed;

[0047] The second bowl set is abutted against the lower edge of the second convex ring part after assembly to be axially limited.

[0048] Optionally, the first oil inlet is connected to the rear brake upper pump through a first oil pipe, and the second oil inlet is connected to the front brake upper pump through a second oil pipe.

[0049] The first oil outlet is connected to the rear brake lower pump through a third oil pipe, and the second oil outlet is connected to the front brake lower pump through a fourth oil pipe.

[0050] Optionally, the handle vertical pipe is internally hollow, and one end of the handle vertical pipe is sleeved and assembled on the first core to hide the assembly of the first oil pipe and the second oil pipe.

[0051] In the second aspect, the application provides a bicycle comprising the rotary oil passing bicycle head structure of the first aspect.

[0052] Compared with the related art, the rotary oil passing bicycle head structure and the bicycle provided by the application at least have the following technical effects:

[0053] The oil pipe hidden assembly of the bicycle when being loaded is realized, the brake oil circuit is smooth, and when the bicycle is turned, the rotation of the main core member drives the rotation of the front fork and the front wheel to realize the turning function, the third oil pipe which is internally penetrated in the bicycle frame is fully hidden in the bicycle frame, and the third oil pipe can rotate with the turning and will not be twisted and damaged with the turning, the fourth oil pipe connected to the second oil outlet of the rotary member is also not twisted and damaged with the turning, the fourth oil pipe does not need to reserve the turning length outside, can be as short as possible and be directly connected to the front brake lower pump, the loading aesthetics is improved, and the damage of the oil pipe outside is avoided; meanwhile, the oil channel machining difficulty on the main core member is greatly reduced through the optimization of the structure, and the smoothness of the oil circuit is ensured.

[0054] The details of one or more embodiments of the application are presented in the following drawings and description to make other features, objects and advantages of the application more clear and simple. BRIEF DESCRIPTION OF DRAWINGS

[0055] In order to illustrate the specific embodiments of the present application or the technical solutions in the prior art more clearly, a brief introduction will be given to the drawings needed in the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0056] Fig. 1 is a perspective view of a turning oiler bow structure according to a first exemplary embodiment.

[0057] Fig. 2 is a first perspective view of a cross section of the turning oiler bow structure according to the first exemplary embodiment.

[0058] Fig. 3 is a second perspective view of a cross section of the turning oiler bow structure according to the first exemplary embodiment.

[0059] Fig. 4 is a perspective view of a turning oiler bow structure according to a second exemplary embodiment.

[0060] Fig. 5 is a first perspective view of a cross section of the turning oiler bow structure according to the second exemplary embodiment.

[0061] Fig. 6 is a second perspective view of a cross section of the turning oiler bow structure according to the second exemplary embodiment.

[0062] Fig. 7 is a perspective view of a turning oiler bow structure according to a third exemplary embodiment.

[0063] Fig. 8 is an exploded view of the turning oiler bow structure according to the third exemplary embodiment.

[0064] Fig. 9 is a cross-sectional view of the turning oiler bow structure according to the third exemplary embodiment.

[0065] Fig. 10 is an assembly schematic view of the turning oiler bow structure according to the third exemplary embodiment.

[0066] Explanation of reference signs: main core 10, first oil channel 100, second oil channel 101, first oil section 1011, second oil section 1012, first oil seal plug 1013, second oil seal plug 1014, first core part 102, inner core body 1021, second ring groove 1022, third ring groove 1023, outer core sleeve 1024, assembly step 1025, third convex ring part 1026, annular sealing groove 1027, first core section 1028, second core section 1029, long pin 1020, second core part 103, first ring groove 104, first convex ring part 105, second convex ring part 106, first locking part 20, tensioning part 30, tensioning assembly groove 301, tensioning ring 302, upper gland 303, gland bolt 304, rotating part 40, rotating sleeve body 401, hierarchical step 402, first slot position 4021, second slot position 4022, second oil outlet 403, rotating sealing ring 404, bearing 405, pipe body part 50, oil pipe chamber 501, second locking part 60, first nut part 601, first locking sleeve 602, first annular convex edge 6021, locking screw hole 6022, buckle edge groove 603, second locking sleeve 604, second annular convex edge 6041, second nut part 605, locking block 606, first bowl group 607, third annular convex edge 6071, second bowl group 608, first oil pipe 701, second oil pipe 702, third oil pipe 703, fourth oil pipe 704, vertical pipe 80. DETAILED DESCRIPTION

[0067] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0068] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", "fourth" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0069] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0070] In the related art, the brake oil pipe is exposed, which not only has poor appearance, but also the exposed oil pipe is likely to be touched by external objects during riding, affecting the safety and riding experience of riding; at the same time, the oil pipe which is inserted into the frame part needs to be as short as possible for the sake of appearance, but this generates a new problem, that is, when the vehicle turns, the oil pipe inserted into the frame part is pulled and dragged or twisted with the rotation of the column, which has great safety hazards and greatly reduces the service life of the oil pipe.

[0071] Based on the above situation, the present application provides a rotary oil passing vehicle head structure and a bicycle, which will be described in detail below in combination with specific embodiments and drawings.

[0072] Embodiment 1

[0073] The embodiment 1 of the present application provides a rotary oil passing vehicle head structure. Fig. 1 is a perspective view of the rotary oil passing vehicle head structure according to the first exemplary embodiment. Fig. 2 is a first view cutaway view of the rotary oil passing vehicle head structure according to the first exemplary embodiment. Fig. 3 is a second view cutaway view of the rotary oil passing vehicle head structure according to the first exemplary embodiment. As shown in Figs. 1-3, the rotary oil passing vehicle head structure is used in combination with a bicycle frame, and the bicycle frame has a pipe body 50, which is a head pipe fixed to the front end of the bicycle frame; and further comprises:

[0074] The main core 10 is cylindrical and at least includes: a first oil channel 100 and a second oil channel 101 axially opened in the inside of the main core 10; a first core part 102 and a second core part 103 arranged axially in sequence; a first ring groove 104 opened on the annular outer wall of the first core part 102; and a first oil inlet radially opened in the second core part 103 and connected with the first end of the first oil channel 100, a first oil outlet axially connected with the second end of the first oil channel 100, a second oil inlet radially opened in the second core part 103 and connected with the first end of the second oil channel 101; wherein the second end of the second oil channel 101 is radially communicated with the first ring groove 102; the annular side wall of the first core part 102 is further provided with a first convex ring part 105;

[0075] A rotating member 40, which at least comprises a rotating sleeve 401 movably sleeved on the second core 103 at a position corresponding to the first annular groove 104, and a second oil outlet 403 is formed on the side wall of the rotating sleeve 401 corresponding to the first annular groove 104 and radially communicated with the first annular groove 104;

[0076] A locking member arranged on the second core 103 to achieve axial positioning of the main core member 101 assembled on the pipe member 50;

[0077] In the technical solution of the above embodiment, referring to FIGS. 1-3, the first oil inlet is connected to the front brake upper pump through the first oil pipe 701; the second oil inlet is connected to the rear brake upper pump through the second oil pipe 702; the first oil outlet is connected to the rear brake lower pump through the third oil pipe 703, and the second oil outlet 403 is connected to the front brake lower pump through the fourth oil pipe 704; it can be understood that the oil pipes can be pre-assembled with oil pipe quick connectors to achieve quick connection, and the oil pipe quick connector is a prior art which can be known by those skilled in the art through public channels; the oil pipe quick connector structure disclosed in Chinese patent ZL202411928412.1 is used in this exemplary embodiment, and details are not described here; the third oil pipe 703 runs inside the bicycle frame and extends out to connect the rear brake lower pump at a position close to the rear brake lower pump, achieving full hidden assembly of the third oil pipe 703; the second oil outlet 403 is close to the front wheel of the bicycle frame, and the fourth oil pipe 704 can directly connect the front brake lower pump near the front wheel of the bicycle frame, thereby avoiding as much as possible the exposure of the fourth oil pipe 704 and achieving hidden assembly.

[0078] When the rear brake is actuated, the rear brake upper pump works to input oil into the second oil inlet 205 through the second oil pipe 702, and then the oil is output to the rear brake lower pump through the third oil pipe 703 for hydraulic braking; when the front brake is actuated, the front brake upper pump works to input oil into the first oil inlet through the first oil pipe 701, and then the oil reaches the fourth oil pipe 704 through the first annular groove 104 and is output to the front brake lower pump for hydraulic braking.

[0079] When the bicycle is turned, the handlebar drives the main core member 10 and the front fork connected to the main core member 10 to rotate inside the pipe member 50 to achieve the turning function; the third oil pipe 703 runs inside the pipe member 50 into the bicycle frame for full hidden assembly, and the third oil pipe 703 can rotate with the turning and will not be twisted and damaged due to rotation during turning; the rotating member 40 is movably sleeved on the main core member 10, so the fourth oil pipe 704 connected to the second oil outlet 403 on the rotating member 40 will not be twisted and damaged due to rotation during turning, and there is no need to reserve a turning length for the oil pipe to be exposed, which can be hidden inside for assembly, improving the appearance of the assembled bicycle and avoiding damage caused by exposure of the oil pipe.

[0080] Meanwhile, in the embodiment, further optimization is made for the outer leakage part of the oil outlet, and the first oil outlet is connected with the third oil pipe 703 extending along the outer wall of the rotating part 40 through the movable oil plug. The movable oil plug and part of the pipe body of the third oil pipe 703 are hidden and assembled in the oil pipe chamber 501 formed in the side wall of the pipe body part 50.

[0081] With reference to FIGS. 1-3, in an alternative embodiment, the rotating part 40 further comprises:

[0082] The hierarchical step 402 is arranged in the middle part of the axial inner wall of the rotating sleeve 401 and is located at the first ring groove 104 after assembly. The two sides of the axial inner wall of the rotating sleeve 401 are sequentially formed with the first groove 4021 and the second groove 4022 from the middle part to the two sides, and the second oil outlet 403 is arranged at the middle part of the hierarchical step 402.

[0083] The rotating sealing ring 404 is two in number and is assembled in the first groove 4021 and is sleeved on the annular outer wall of the first core 102 to prevent oil leakage of the first ring groove 104.

[0084] The bearing 405 is two in number and is assembled in the second groove 4022, and the inner ring of the bearing is tightly fitted with the first core 102 to maintain the rotating assembly of the rotating part 40 on the main core 10. In the embodiment, the bearing 405 is a deep groove ball bearing. Further, with reference to FIGS. 2-3, the opposite sides of the two bearings 405 are tightly pressed and axially position the rotating sealing ring 404 to seal the second oil channel 101.

[0085] In the technical solution of the above embodiment, the rotating sealing ring 404 is arranged to effectively ensure the sealing of the annular oil channel, prevent oil leakage and avoid dust entering, and the arrangement of the bearing 405 also reduces the rotating friction force of the rotating part 40 on the main core 10, so that the steering is smooth and the oil channel is not damaged.

[0086] With reference to FIGS. 1-3, in the embodiment, the locking part comprises:

[0087] The first locking part 20 is sleeved on the second core 103 and is limited by the first convex ring part 105, and the outer end edge of the first locking part 20 abuts against the edge of the first end of the pipe body part 50.

[0088] The second locking part 60 is assembled at the second end of the pipe body part 50 and is threadedly assembled with the second end of the second core 103 to axially position the main core 10 and the rotating part 40 in cooperation with the first locking part 20. Specifically, the second locking part 60 comprises:

[0089] A second locking sleeve 604, the first end of which is sleeved on the second end of the second core 103, and the first end of which abuts against the rotary member 40 to axially position the rotary member 40 in cooperation with the first locking member 20, wherein the second end of the second locking sleeve 604 is integrally formed with a stepped second annular flange 6041;

[0090] A second nut member 605, which is arranged in a fitting groove formed in the middle of the second locking sleeve 604 and is screwed with the second end of the second core 103 to push against the fitting position of the rotary member 40;

[0091] A locking block 606, which is inserted into a key groove formed between the second locking sleeve 604 and the second core 103 to radially position the second locking sleeve 604;

[0092] A first bowl set 607, which is sleeved on the second end of the second locking sleeve 604 and has an inner end abutting against the second annular flange 6041 and an outer end integrally formed with a stepped third annular flange 6071, the third annular flange 6071 abutting against the second end of the pipe member 50 to form a buckling structure.

[0093] In the technical solution of the above embodiment, during assembly, the third oil pipe 703 is first threaded in the bicycle frame, then the first locking member 20 is assembled on the upper end of the pipe member 50, and the first core 102 of the main core member 10 is inserted;

[0094] The first bowl set 607 is sleeved on the second locking sleeve 604, and the second locking sleeve 604 is sleeved on the first core 102 of the main core member 10, the locking block 606 is inserted into the key groove formed between the second locking sleeve 604 and the first core 102 to radially position the second locking sleeve 604, then the second nut member 605 is screwed from the lower part of the second locking sleeve 604 until the third annular flange 6071 of the first bowl set 607 abuts against the second end of the pipe member 50 to form a buckling structure; it should be noted that the above assembly steps of the embodiment are consistent with the overall assembly steps of the existing bicycle, and the existing assembly habit of workers can be directly replaced during overall assembly, and the assembly is faster.

[0095] Then, the fourth oil pipe 704 is connected to the second oil outlet 403, the third oil pipe 703 is connected to the first oil outlet, the first oil pipe 701 is connected to the first oil inlet, and the second oil pipe 702 is connected to the second oil inlet, and the oil circuit connection is completed.

[0096] Further, the embodiment further includes a vertical pipe 80, the vertical pipe 80 is hollow inside, and one end of the vertical pipe 80 is sleeved and assembled on the first core part 102 to hide the assembly of the first oil pipe 701 and the second oil pipe 702, and further, the first end of the second core part 103 is provided with a gland part, the lower end of the gland part has a pressing edge part, the gland part is connected with the upper end of the second core part 103 through the axially arranged gland bolt, and the gland part is fixed on the upper end of the first core part 102, so that the axial fixed assembly of the vertical pipe 80 is realized. Specifically, the vertical section of the vertical pipe 80 is fixedly assembled on the second core part 103, and the first oil pipe 701 and the second oil pipe 702 can be hiddenly assembled in the lumen of the vertical pipe 80 to realize the hidden assembly of the oil pipe, further, the first oil pipe 701 and the second oil pipe 702 can be arranged in the lumen of the vertical pipe 80, and are arranged to extend out near the brake handle or are directly connected with the brake handle, so that the oil pipe is completely hidden and arranged, the protection effect of the oil pipe is good, and the appearance of the vehicle frame is improved.

[0097] In summary, the rotary oil passing vehicle head structure provided by the embodiment 1 of the present application realizes the hidden assembly of the oil pipe when the bicycle is assembled, the brake oil circuit is smooth, and when the bicycle is turned, the rotation of the main core part 10 drives the rotation of the front fork and the front wheel to realize the turning function, the third oil pipe 703 arranged in the bicycle frame realizes the completely hidden assembly in the bicycle frame, and the third oil pipe 703 can rotate with the turning and will not be twisted and damaged with the turning, and the fourth oil pipe 704 connected with the second oil outlet 403 on the rotary part 40 is also not twisted and damaged with the turning, and the fourth oil pipe 704 does not need to reserve the turning length exposed outside, can be directly connected with the front brake lower pump as short as possible, improves the appearance of the assembled bicycle, and avoids the damage of the exposed oil pipe.

[0098] Embodiment 2

[0099] The embodiment 2 of the present application provides a rotary oil passing vehicle head structure. Fig. 4 is a perspective view of the rotary oil passing vehicle head structure according to the second exemplary embodiment. Fig. 5 is a first view cutaway view of the rotary oil passing vehicle head structure according to the second exemplary embodiment. Fig. 6 is a second view cutaway view of the rotary oil passing vehicle head structure according to the second exemplary embodiment. As shown in Figs. 4-6, the rotary oil passing vehicle head structure is used in combination with a bicycle frame, the bicycle frame has a pipe part 50, the pipe part 50 is a head pipe, and the pipe part 50 is fixed to the front end of the bicycle frame; and the rotary oil passing vehicle head structure further includes:

[0100] The main core 10 is cylindrical and includes at least: a first oil passage 100 and a second oil passage 101 axially opened inside the main core 10; a first core portion 102 and a second core portion 103 arranged axially in sequence; a first annular groove 104 opened on the annular outer wall of the first core portion 102; and a first oil inlet radially opened on the second core portion 103 and connected to the first end of the first oil passage 100, a first oil outlet axially connected to the second end of the first oil passage 100, and a second oil inlet radially opened on the second core portion 103 and connected to the first end of the second oil passage 101; wherein the second end of the second oil passage 101 is radially connected to the first annular groove 102; a first protruding ring portion 105 is also provided on the annular side wall of the first core portion 102.

[0101] The rotating component 40 includes at least a rotating sleeve 401, which is movably sleeved on the second core 103 at the position corresponding to the first annular groove 104, and a second oil outlet 403 that radially communicates with the first annular groove 104 is opened on the side wall corresponding to the first annular groove 104.

[0102] A locking element is provided at the second core 103 position to achieve axial positioning of the main core 101 on the tube body 50;

[0103] In the above embodiments, referring to Figures 1-3, the first oil inlet is connected to the rear brake upper pump via a first oil pipe 701; the second oil inlet is connected to the front brake upper pump via a second oil pipe 702; the first oil outlet is connected to the rear brake lower pump via a third oil pipe 703; and the second oil outlet 403 is connected to the front brake lower pump via a fourth oil pipe 704. It is understood that quick-connect couplings can be pre-installed on the oil pipes to facilitate rapid connection. Quick-connect couplings are existing technology and can be obtained from publicly available information by those skilled in the art. This exemplary embodiment uses the quick-connect structure of the oil pipe disclosed in Chinese Patent ZL202411928412.1, which will not be described in detail here. The third oil pipe 703 runs inside the bicycle frame and extends to connect to the rear brake down pump near the rear brake down pump, thus achieving a fully concealed assembly of the third oil pipe 703. The second oil outlet 403 is close to the front wheel of the bicycle frame, and the fourth oil pipe 704 can be directly close to the front brake down pump at the front wheel of the bicycle frame, thereby avoiding the exposure of the fourth oil pipe 704 as much as possible and achieving a concealed assembly.

[0104] When the rear brake is applied, the upper pump of the rear brake works to input oil through the second oil pipe 702 into the second oil inlet 205, and then the oil is output to the lower pump of the rear brake through the third oil pipe 703, thus achieving hydraulic braking. When the front brake is applied, the upper pump of the front brake works to input oil through the first oil pipe 701 into the first oil inlet, and then the oil is output to the lower pump of the front brake through the first annular groove 104 and the fourth oil pipe 704, thus achieving hydraulic braking.

[0105] When the bicycle turns, the handlebars drive the main core component 10 and the fork connected to the main core component 10 to rotate inside the tube body component 50 to achieve the steering function. The third oil pipe 703 runs through the tube body component 50 into the bicycle frame for fully concealed assembly. The third oil pipe 703 can rotate with the steering without causing the oil pipe to twist and be damaged. The rotating component 40 is movably sleeved on the main core component 10. Therefore, the fourth oil pipe 704 connected to the second oil outlet 403 on the rotating component 40 will not rotate with the steering and cause the oil pipe to twist and be damaged. There is no need to reserve an exposed steering length for the oil pipe. It can be concealed and assembled internally, improving the aesthetics of the vehicle and avoiding damage to the exposed oil pipe.

[0106] In this embodiment, referring to Figures 4-6, further optimizations have been made to the external leakage portion of the oil outlet. A third oil pipe 703 extending axially along the outer wall of the rotating component 40 is connected to the first oil outlet through a movable oil plug. Parts of the movable oil plug and the third oil pipe 703 are hidden and assembled in the oil pipe chamber 501 opened on the side wall of the pipe component 50.

[0107] Referring again to Figures 4-6, in an optional embodiment, the rotating member 40 further includes:

[0108] The step 402 is located in the middle of the axial inner wall of the rotating sleeve 401 and is located at the first annular groove 104 after assembly. The first groove 4021 and the second groove 4022 are formed on both sides of the axial inner wall of the rotating sleeve 401 from the middle to the sides. The second oil outlet 403 is opened in the middle of the step 402.

[0109] Two rotary sealing rings 404 are respectively installed in the first groove 4021 and sleeved on the annular outer wall of the first core 102 to prevent oil leakage in the first annular groove 104.

[0110] Two bearings 405 are respectively assembled in the second slot 4022, and their inner rings are tightly fitted with the first core 102 to maintain the rotational assembly of the rotating component 40 on the main core 10. In this embodiment, the bearings 405 are deep groove ball bearings. Further, referring to Figures 5-6, after the two bearings 405 are assembled on opposite sides, they are pressed together and the rotary sealing ring 404 is axially positioned to seal the second oil passage 101.

[0111] In the above embodiment, the rotary sealing ring 404 effectively ensures the sealing of the annular oil circuit, preventing oil leakage and dust ingress. At the same time, the bearing 405 reduces the rotational friction of the rotary component 40 on the main core component 10, ensuring smooth steering without damaging the oil circuit.

[0112] Referring again to Figures 4-6, in this embodiment, the locking element includes:

[0113] The first locking member 20 is sleeved on the second core 103 and limited by the first protruding ring 105, and the outer edge of the first locking member 20 abuts against the edge of the first end of the tube body 50.

[0114] The second locking member 60 is assembled to the second end of the tube body 50 and threadedly assembled to the second end of the second core 103 to cooperate with the first locking member 20 to axially position the main core 10 and the rotating member 40; wherein, the second locking member 60 specifically includes:

[0115] The first nut 601 is threadedly fitted onto the second core 103 to cooperate with the first locking member 20 to axially position the rotating member 40.

[0116] The first locking sleeve 602 has its first end assembled to the free end of the second core 103, and its second end integrally formed with a step-shaped first annular protrusion 6021.

[0117] A locking screw hole 6022 is provided on the side wall of the first locking sleeve 602 to cooperate with the locking bolt assembled therein to fix the assembly position of the first locking sleeve 602.

[0118] The snap-fit ​​groove 603 is opened at the second end of the tube body 50 and forms a snap-fit ​​structure with the first annular protrusion 6021.

[0119] In the above embodiment, during assembly, the third oil pipe 703 is first threaded through the bicycle frame, and then the first locking member 20 is installed at the upper end of the pipe body 50 and the first core 102 of the main core member 10 is inserted.

[0120] Then, the rotating part 40, the first nut part 601, and the first locking sleeve 602 are assembled in sequence. The first annular protrusion 6021 at the second end of the first locking sleeve 602 abuts against the snap groove 603 at the second end of the pipe body part 50. The assembly position of the first locking sleeve 602 is fixed by the locking bolt, and the main body assembly is completed.

[0121] Subsequently, the fourth oil pipe 704 is connected to the second oil outlet 403, the third oil pipe 703 is connected to the first oil outlet, the first oil pipe 701 is connected to the first oil inlet, and the second oil pipe 702 is connected to the second oil inlet, thus completing the oil circuit connection.

[0122] Furthermore, in this embodiment, a handlebar tube 80 is also included. The handlebar tube 80 is hollow inside, and one end of it is fitted onto the first core 102 to conceal the assembly of the first oil pipe 701 and the second oil pipe 702. Furthermore, the first end of the second core 103 is provided with a pressure cap, and the lower end of the pressure cap has a pressure edge. It is connected to the upper end of the second core 103 by an axially arranged pressure cap bolt. The pressure cap is fixed to the upper end of the first core 102 by the pressure cap bolt, thereby realizing the axial fixed assembly of the handlebar tube 80. Specifically, the vertical section of the stem tube 80 is fixedly mounted on the second core 103, and the first oil pipe 701 and the second oil pipe 702 can be hidden inside the cavity of the stem tube 80 to achieve hidden mounting of the oil pipes. Furthermore, the first oil pipe 701 and the second oil pipe 702 can be run through the cavity of the stem tube 80 and extend near the brake lever or directly connect to the brake lever to achieve fully hidden routing of the oil pipes. The oil pipes have a good protection effect and improve the aesthetics of the frame mounting.

[0123] In summary, the rotary oil-operated vehicle head structure provided in Embodiment 2 of the present invention achieves concealed assembly of the oil pipes when mounting the bicycle, ensuring smooth brake oil flow. When the bicycle turns, the rotation of the main core component 10 drives the rotation of the front fork and front wheel to achieve the steering function. The third oil pipe 703, which runs inside the bicycle frame, achieves fully concealed assembly within the bicycle frame. Furthermore, the third oil pipe 703 can rotate with the steering without twisting or damaging the oil pipe. The rotary component 40 is movably sleeved on the main core component 10, so the fourth oil pipe 704 connected to the second oil outlet 403 on the rotary component 40 will not twist or damage the oil pipe with the steering. There is no need to reserve an exposed steering length for the fourth oil pipe 704, allowing for direct connection to the front brake pump with the shortest possible length, improving the aesthetics of the mounting and avoiding damage from exposed oil pipes.

[0124] Example 3

[0125] Embodiment 3 of the present invention provides a rotary oil-operated bicycle handlebar structure. Figure 7 is a perspective view of the rotary oil-operated bicycle handlebar structure according to a third exemplary embodiment. Figure 8 is an exploded view of the rotary oil-operated bicycle handlebar structure according to a third exemplary embodiment. Figure 9 is a cross-sectional view of the rotary oil-operated bicycle handlebar structure according to a third exemplary embodiment. As shown in Figures 7-9, this rotary oil-operated bicycle handlebar structure is used with a bicycle frame, the bicycle frame having a tubular member 50, which is a fork rib tube, inserted and assembled through the aforementioned head tube and connected to the stem tube 80; it also includes:

[0126] The main core 10 is cylindrical and includes at least: a first oil passage 100 and a second oil passage 101 axially opened inside the main core 10; a first core portion 102 and a second core portion 103 arranged axially in sequence; a first annular groove 104 opened on the annular outer wall of the first core portion 102; and a first oil inlet radially opened on the second core portion 103 and connected to the first end of the first oil passage 100, a first oil outlet axially connected to the second end of the first oil passage 100, and a second oil inlet radially opened on the second core portion 103 and connected to the first end of the second oil passage 101; wherein the second end of the second oil passage 101 is radially connected to the first annular groove 102; and a second protruding ring portion 106 is provided on the annular side wall of the second core portion 103.

[0127] The rotating component 40 includes at least a rotating sleeve 401, which is movably sleeved on the second core 103 at the position corresponding to the first annular groove 104, and a second oil outlet 403 that radially communicates with the first annular groove 104 is opened on the side wall corresponding to the first annular groove 104.

[0128] A locking element is provided at the second core 103 position to achieve axial positioning of the main core 101 on the tube body 50.

[0129] In the above embodiments, referring to Figures 1-3, the first oil inlet is connected to the rear brake upper pump via a first oil pipe 701; the second oil inlet is connected to the front brake upper pump via a second oil pipe 702; the first oil outlet is connected to the rear brake lower pump via a third oil pipe 703; and the second oil outlet 403 is connected to the front brake lower pump via a fourth oil pipe 704. It is understood that quick-connect couplings can be pre-installed on the oil pipes to facilitate rapid connection. Quick-connect couplings are existing technology and can be obtained from publicly available information by those skilled in the art. This exemplary embodiment uses the quick-connect structure of the oil pipe disclosed in Chinese Patent ZL202411928412.1, which will not be described in detail here. The third oil pipe 703 runs inside the bicycle frame and extends to connect to the rear brake down pump near the rear brake down pump, thus achieving a fully concealed assembly of the third oil pipe 703. The second oil outlet 403 is close to the front wheel of the bicycle frame, and the fourth oil pipe 704 can be directly close to the front brake down pump at the front wheel of the bicycle frame, thereby avoiding the exposure of the fourth oil pipe 704 as much as possible and achieving a concealed assembly.

[0130] When the rear brake is applied, the upper pump of the rear brake works to input oil through the second oil pipe 702 into the second oil inlet 205, and then the oil is output to the lower pump of the rear brake through the third oil pipe 703, thus achieving hydraulic braking. When the front brake is applied, the upper pump of the front brake works to input oil through the first oil pipe 701 into the first oil inlet, and then the oil is output to the lower pump of the front brake through the first annular groove 104 and the fourth oil pipe 704, thus achieving hydraulic braking.

[0131] When the bicycle turns, the handlebars drive the main core component 10 and the fork connected to the main core component 10 to rotate inside the tube body component 50 to achieve the steering function. The third oil pipe 703 runs through the tube body component 50 into the bicycle frame for fully concealed assembly. The third oil pipe 703 can rotate with the steering without causing the oil pipe to twist and be damaged. The rotating component 40 is movably sleeved on the main core component 10. Therefore, the fourth oil pipe 704 connected to the second oil outlet 403 on the rotating component 40 will not rotate with the steering and cause the oil pipe to twist and be damaged. There is no need to reserve an exposed steering length for the oil pipe. It can be concealed and assembled internally, improving the aesthetics of the vehicle and avoiding damage to the exposed oil pipe.

[0132] Referring again to Figures 7-9, in an optional embodiment, the rotating member 40 further includes:

[0133] The step 402 is located in the middle of the axial inner wall of the rotating sleeve 401 and is located at the first annular groove 104 after assembly. The first groove 4021 and the second groove 4022 are formed on both sides of the axial inner wall of the rotating sleeve 401 from the middle to the sides. The second oil outlet 403 is opened in the middle of the step 402.

[0134] Two rotary sealing rings 404 are respectively installed in the first groove 4021 and sleeved on the annular outer wall of the first core 102 to prevent oil leakage in the first annular groove 104.

[0135] Two bearings 405 are respectively assembled in the second slot 4022, and their inner rings are tightly fitted with the first core 102 to maintain the rotational assembly of the rotating component 40 on the main core 10. In this embodiment, the bearings 405 are deep groove ball bearings. Further, referring to Figures 8-9, after the two bearings 405 are assembled on opposite sides, they are pressed together and axially positioned with a rotary sealing ring 404 to seal the second oil passage 101.

[0136] Referring again to Figures 7-9, in this embodiment, the first core 102 includes:

[0137] The inner core 1021 is axially disposed at the first end of the second core 103. The inner core 1021 has a second annular groove 1022 that radially connects to the first end of the first oil passage 100 and a third annular groove 1023 that radially connects to the first end of the second oil passage 101 on its annular outer wall.

[0138] The outer core sleeve 1024 is fixedly sleeved on the inner core 1021 at the positions corresponding to the second annular groove 1023 and the third annular groove 1024. The first oil inlet is opened through the outer core sleeve 1024 at the position corresponding to the second annular groove 1022 to connect to the first oil passage, and the second oil inlet is opened through the outer core sleeve 1024 at the position corresponding to the third annular groove 1023 to connect to the second oil passage.

[0139] Referring again to Figures 7-9, in this embodiment, an annular sealing groove 1027 is provided on the inner wall of the outer core sleeve 1024. There are at least three annular sealing grooves 1027, which are respectively formed on the inner wall of the outer core sleeve 1024 at the outer edge position corresponding to the second annular groove 1023, the position between the second annular groove 1023 and the third annular groove 1024, and the outer edge position of the third annular groove 1024. Each annular sealing groove 1027 is provided with an O-ring to prevent oil leakage in the second annular groove 1023 and the third annular groove 1024.

[0140] Furthermore, in this embodiment, the second end of the outer core sleeve 1024 is provided with a third protruding ring portion 1026, and the rotating component 40 is assembled between the second protruding ring portion 106 and the third protruding ring portion 1026 for axial positioning.

[0141] Figure 10 is a schematic diagram of the assembly of the rotary oil-car head structure according to a third exemplary embodiment. In this embodiment, referring to Figures 7-10, the outer diameter of the inner core 1021 is smaller than the outer diameter of the second core 103 to form an assembly step 1025 by misalignment;

[0142] The first end of the inner core 1021 is also provided with a tensioning member 30, and the outer core sleeve 1024 is assembled between the tensioning member 30 and the assembly step 1025 for axial positioning; the tensioning member 30 includes:

[0143] The tensioning cavity is located at the axial center of the first end of the outer core sleeve 1024 and forms an annular tensioning assembly groove 301 with the first end of the inner core 1021.

[0144] At least one tensioning ring 302 is fitted into the tensioning assembly groove 301.

[0145] The upper pressure cap 303 has a pressure edge formed at its inner end, and it is connected to the first end of the inner core 1021 by a pressure cap bolt 304 arranged axially.

[0146] The outer core sleeve 1023, after being assembled, abuts against the second end of the assembly step 1025, and after the pressing part is assembled, it tightens and presses the tensioning ring 302 to axially position the outer core sleeve 1024.

[0147] In the above embodiment, the O-ring and rotary seal 404 effectively ensure the sealing of the three annular oil passages, preventing oil leakage and dust ingress. Meanwhile, the ball bearing 405 reduces the rotational friction of the rotary component 40 on the main core component 10, ensuring smooth steering without damaging the oil passages.

[0148] Referring again to Figures 7-10, the locking element 60 includes:

[0149] The second headset 608 is provided with a headset bolt 609 for adjusting the inner diameter of the second headset 608. The tube body 50 is a fork riser tube, which is sleeved on the second end of the second core 103 and pressed by the outside of the second headset 608 to fix it.

[0150] The second bowl assembly 608, after assembly, abuts against the lower edge of the second convex ring 106 to limit axial movement.

[0151] In the above embodiment, during assembly, the third oil pipe 703 is first passed through the bicycle frame and then connected to the first oil outlet. The fourth oil pipe 704 is connected to the second oil outlet 403. Then, the fourth oil pipe 704 can be directly extended along the outer wall of the front fork tube and connected to the front brake pump, or the third oil pipe 703 is passed through the bicycle front fork. Then, the second end of the third oil pipe 703 passes out from near the front brake pump and is connected to the front brake pump.

[0152] The lower part of the main core component 10 is inserted into the upper end of the tube body component 50 and is externally fastened by the second cup assembly 608; the rotating component 40, the oil fitting 20 and the tensioning component 30 are sequentially assembled on the main core component 10 to complete the main body assembly;

[0153] Subsequently, the fourth oil pipe 704 is connected to the second oil outlet 403, the third oil pipe 703 is connected to the first oil outlet, the first oil pipe 701 is connected to the first oil inlet, and the second oil pipe 702 is connected to the second oil inlet, thus completing the oil circuit connection.

[0154] Furthermore, referring to Figure 10, this embodiment also includes a riser tube 80, which is hollow inside, and one end of which is fitted onto the first core 102 to conceal the assembly of the first oil pipe 701 and the second oil pipe 702. Further, in this embodiment, the vertical section of the riser tube 80 is assembled onto the second core 103, and then a tensioning ring 302 is sequentially inserted into the tensioning assembly groove 301. The pressure cap 303 is assembled and connected to the upper end of the second core 103 by the axially arranged pressure cap bolt, thereby achieving the axial fixed assembly of the riser tube 80 while tensioning the outer core sleeve 1024. Specifically, the vertical section of the stem tube 80 is fixedly mounted on the second core 103, and the first oil pipe 701 and the second oil pipe 702 can be hidden inside the cavity of the stem tube 80 to achieve hidden mounting of the oil pipes. Furthermore, the first oil pipe 701 and the second oil pipe 702 can be run through the cavity of the stem tube 80 and extend near the brake lever or directly connect to the brake lever to achieve fully hidden routing of the oil pipes. The oil pipes have a good protection effect and improve the aesthetics of the frame mounting.

[0155] Example 4

[0156] Embodiment 4 of the present invention also provides a rotating oil-passing head structure, which differs from Embodiments 1-3 in that, referring to Figures 5-6, the second oil passage 101 is composed of a first oil section 1011 and a second oil section 1012 connected in a straight line, and a second oil seal 1014 is provided between the first oil section 1011 and the second oil section 1012, and a first oil seal 1013 is provided at the opening of the second oil section 1012;

[0157] The first oil section 1011 connects the first annular groove 101 and the second oil inlet, and the second oil section 1012 connects the first oil inlet and the first oil passage 100.

[0158] In the above embodiment, in order to facilitate the drilling and smooth flow of the first oil passage 100 and the second oil passage 101, a segmented structure of the second oil passage 101 is designed. The first oil section 1011 is connected to the first annular groove 104 and the second oil inlet by the sealing of the second oil seal 1014. The second oil section 1012 is connected to the first oil passage 100 by the sealing of the first oil seal 1013 and the second oil seal 1014, combined with the drilling of the first oil inlet, forming a relay oil passage, thereby connecting the first oil inlet and the second oil outlet.

[0159] This effectively reduces the difficulty of machining the oil passages on the main core component 10 and ensures smooth oil flow.

[0160] Example 5

[0161] Embodiment 5 of the present invention also provides a rotating oil-passing head structure, which differs from Embodiments 1-4 in that, referring to Figures 2-3, the first core 102 includes a first core segment 1028 and a second core segment 1029, the first core segment 1028 and the second core segment 1029 are axially arranged and fixed to the first core 102 by a plurality of long pins 1020.

[0162] In the above embodiment, in order to facilitate the drilling and processing of the first oil passage 100 and the second oil passage 101 and ensure smooth oil passage, a three-section structure of the main core 10 is designed. The second core 103 is divided into the first core segment 1028 and the second core segment 1029, and fixed to the first core 102 by a number of long pins 1020. Therefore, the holes and oil passages on the first core segment 1028, the second core segment 1029 and the first core 102 can be drilled separately. During assembly, the oil passages can be connected, which effectively reduces the difficulty of processing the oil passages on the main core 10 and ensures smooth oil passage.

[0163] In an optional embodiment, referring to Figures 5-6, the first protruding ring portion 105 can also be machined separately and then fixedly assembled onto the main core component 10 by threads or pins, so as to further reduce the machining difficulty and improve the machining efficiency.

[0164] In another alternative embodiment, the connection method of the oil pipes can also be changed. The first oil inlet is connected to the rear brake upper pump through the first oil pipe 701; the second oil inlet is connected to the front brake upper pump through the second oil pipe 702; the first oil outlet is connected to the front brake lower pump through the third oil pipe 703; and the second oil outlet 403 is connected to the rear brake lower pump through the fourth oil pipe 704. The purpose of this is to allow the third oil pipe 703, which runs through the tube body 50, to be hidden and run directly through the bicycle fork. Then, the second end of the third oil pipe 703 passes out from near the front brake lower pump and connects to the front brake lower pump. The fourth oil pipe 704, with only a small part of the oil pipe exposed, can be directly inserted into the bicycle frame nearby, with only a small part of the oil pipe exposed, thus maintaining the hidden assembly effect of the oil pipes.

[0165] Example 6

[0166] Embodiment 6 of the present invention provides a bicycle, including a rotary oil-cooled front end structure of any one of Embodiments 1-5.

[0167] Other undescribed structures are described in Examples 1-5.

[0168] In summary, the rotary hydraulic head structure and bicycle provided in Embodiment 6 of this invention achieve concealed assembly of the hydraulic pipes during bicycle mounting, ensuring smooth brake oil flow. When the bicycle turns, the rotation of the main core component 10 drives the rotation of the front fork and front wheel to achieve steering. The third hydraulic pipe 703, which runs inside the bicycle frame, achieves fully concealed assembly within the bicycle frame. The third hydraulic pipe 703 can rotate with steering without twisting or damaging the hydraulic pipe. The rotary component 40 is movably sleeved on the main core component 10, so the fourth hydraulic pipe 704 connected to the second oil outlet 403 on the rotary component 40 will not twist or damage the hydraulic pipe with steering. There is no need to reserve an exposed steering length for the fourth hydraulic pipe 704, allowing for direct connection to the front brake pump with the shortest possible length, improving the aesthetics of the mounting and avoiding damage from exposed hydraulic pipes. At the same time, through structural optimization, the machining difficulty of the oil passages on the main core component 10 is significantly reduced, ensuring smooth hydraulic flow.

[0169] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0170] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A rotary oil-carrying head structure, used in conjunction with a bicycle frame, the bicycle frame having tubular components, characterized in that, It also includes: The main core component is cylindrical and includes at least: a first oil passage and a second oil passage axially opened inside the main core component; a first core portion and a second core portion arranged axially in sequence; a first annular groove opened on the annular outer wall of the first core portion; and a first oil inlet radially opened in the second core portion and connected to a first end of the first oil passage, a first oil outlet axially connected to a second end of the first oil passage, and a second oil inlet radially opened in the second core portion and connected to a first end of the second oil passage; wherein the second end of the second oil passage is radially connected to the first annular groove; A rotating component, comprising at least a rotating sleeve, wherein the rotating sleeve is movably sleeved on the second core at the position corresponding to the first annular groove, and a second oil outlet radially communicating with the first annular groove is provided on the side wall corresponding to the first annular groove. A locking element is provided at the second core position to achieve axial positioning of the main core component when it is assembled onto the tube body component.

2. The rotary oil-passing head structure as described in claim 1, characterized in that: The rotating component also includes: A stepped structure is provided in the middle of the axial inner wall of the rotating sleeve and is located at the first annular groove after assembly. A first groove and a second groove are formed sequentially from the middle to the sides on both sides of the axial inner wall of the rotating sleeve. The second oil outlet is located in the middle of the stepped structure. Two rotary sealing rings are respectively assembled in the first groove and sleeved on the annular outer wall of the first core to prevent oil leakage in the first annular groove. Two bearings are respectively assembled in the second slot, and their inner rings are tightly fitted with the first core to maintain the rotational assembly of the rotating component on the main core.

3. The rotary oil-passing head structure as described in claim 2, characterized in that: After the two bearings are assembled on opposite sides, they are pressed together and the rotary seal ring is axially positioned to seal the second oil passage.

4. The rotary oil-passing head structure as described in claim 1, characterized in that: The annular sidewall of the first core is further provided with a first protruding ring portion, and the locking member includes: The first locking member is sleeved on the second core and limited by the first protruding ring, and the outer edge of the first locking member abuts against the edge of the first end of the tube body. The second locking member is assembled at the second end of the tube body and threadedly assembled with the second end of the second core to cooperate with the first locking member to axially position the main core and the rotating member; The tubular component is a head tube, which is fixed to the front end of the bicycle frame.

5. The rotary oil-passing head structure as described in claim 4, characterized in that: The second locking element includes: A first nut component is threadedly fitted onto the second core to cooperate with the first locking component to axially position the rotating component; The first locking sleeve has its first end assembled to the free end of the second core, and its second end integrally formed with a first annular protrusion in a stepped shape. A locking screw hole is provided on the side wall of the first locking sleeve to cooperate with the locking bolt assembled therein to fix the assembly position of the first locking sleeve. The snap-fit ​​groove is formed at the second end of the tube body and works with the first annular protrusion to form a snap-fit ​​structure.

6. The rotary oil-passing head structure as described in claim 4, characterized in that: The second locking element includes: The second locking sleeve has its first end sleeved on the second end of the second core, and its first end abuts against the rotating member to cooperate with the first locking member to axially position the rotating member. The second end of the second locking sleeve is integrally formed with a step-shaped second annular protrusion. The second nut is disposed in the assembly groove opened in the middle of the second locking sleeve and is threaded to the second end of the second core to push and position the assembly position of the rotating part. A locking block is inserted into a keyway formed between the second locking sleeve and the second core to radially position the second locking sleeve; The first bowl assembly is fitted onto the second end of the second locking sleeve, with its inner end abutting against the second annular protrusion. Its outer end is integrally formed with a stepped third annular protrusion, which abuts against the second end of the tube body to form a snap-fit ​​structure.

7. The rotary oil-passing head structure as described in claim 4, characterized in that: A third oil pipe extending axially along the outer wall of the rotating component is connected to the first oil outlet via a movable oil plug. Parts of the movable oil plug and the third oil pipe are concealed and assembled in an oil pipe cavity opened on the side wall of the pipe component.

8. The rotary oil-passing head structure as described in claim 1, characterized in that: The second oil passage consists of a first oil section and a second oil section that are connected in a straight line, and a second oil seal is provided between the first oil section and the second oil section, and a first oil seal is provided at the opening of the second oil section. The first oil section connects the first annular groove and the second oil inlet, and the second oil section is indirectly connected to the first oil inlet and the first oil passage.

9. The rotary oil-passing head structure as described in claim 1, characterized in that: The first core includes a first core segment and a second core segment, which are axially arranged and fixed to the first end of the second core by a plurality of long pins.

10. The rotary oil-passing head structure as described in claim 1, characterized in that: The first core includes: The inner core is axially disposed at the first end of the second core. The inner core has a second annular groove that radially connects to the first end of the first oil passage and a third annular groove that radially connects to the first end of the second oil passage on its annular outer wall. An outer core sleeve is fixedly sleeved on the inner core body at positions corresponding to the second annular groove and the third annular groove. The first oil inlet is opened through the outer core sleeve at the position corresponding to the second annular groove to connect to the first oil passage, and the second oil inlet is opened through the outer core sleeve at the position corresponding to the third annular groove to connect to the second oil passage.

11. The rotary oil-passing head structure as described in claim 10, characterized in that: The inner wall of the outer core sleeve is provided with an annular sealing groove. There are at least three annular sealing grooves, which are respectively formed on the inner wall of the outer core sleeve at the outer edge position corresponding to the second annular groove, the position between the second annular groove and the third annular groove, and the outer edge position of the third annular groove. Each annular sealing groove is provided with an O-ring to prevent oil leakage in the second annular groove and the third annular groove.

12. The rotary oil-passing head structure as described in claim 10, characterized in that: The outer diameter of the inner core is smaller than the outer diameter of the second core to form an assembly step by misalignment; The first end of the inner core is also provided with a tensioning member, and the outer core is fitted between the tensioning member and the assembly step for axial positioning.

13. The rotary oil-passing head structure as described in claim 10, characterized in that: The tensioning element includes: The tensioning cavity is located at the axial center of the first end of the outer core sleeve and forms an annular tensioning assembly groove with the first end of the inner core. At least one tensioning ring is fitted into the tensioning assembly groove. The upper pressure cap has a pressure edge formed at its inner end, and it is connected to the first end of the inner core by an axially arranged pressure cap bolt; Wherein, after the second end of the outer core sleeve is assembled, it abuts against the second end of the assembly step, and after the pressing edge is assembled, it tightens and presses the tensioning ring to axially position the outer core sleeve.

14. The rotary oil-passing head structure as described in claim 10, characterized in that: The second core has a second protruding ring on its annular sidewall, and the second end of the outer core sleeve has a third protruding ring. The rotating component is assembled between the second protruding ring and the third protruding ring for axial positioning.

15. The rotary oil-passing head structure as described in claim 14, characterized in that: The locking element includes: The second headset assembly is provided with a headset bolt for adjusting the inner diameter of the second headset assembly. The tubular component is a fork riser tube, which is sleeved on the second end of the second core and pressed tightly by the outside of the second headset assembly to fix it. The second bowl assembly, after assembly, abuts against the lower edge of the second convex ring to limit its axial position.

16. The rotary oil-passing head structure as described in claim 1, characterized in that: The first oil inlet is connected to the rear brake pump via the first oil pipe; the second oil inlet is connected to the front brake pump via the second oil pipe. The first oil outlet is connected to the rear brake pump via the third oil pipe, and the second oil outlet is connected to the front brake pump via the fourth oil pipe.

17. The rotary oil-passing head structure as described in claim 16, characterized in that: It also includes a stem tube, which is hollow inside and one end of which is fitted onto the first core to conceal the first oil pipe and the second oil pipe.

18. A bicycle, characterized in that, It includes the rotary oil-passing head structure as described in any one of claims 1-17.

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