Improved rotary oil passing bicycle head structure and bicycle

Abstract

The utility model relates to an improved rotary oil passing bicycle head structure and a bicycle. The improved rotary oil-passing bicycle head structure is matched with a bicycle frame for use and comprises a bicycle head pipe, an oil passing pipe and a rotating oil passing pipe, the inner core piece at least comprises a first core part, a first convex ring part and a second core part which are sequentially arranged in the axial direction, and a first oil channel and a second oil channel which are axially formed in the inner core piece, and a first ring groove is formed in the annular outer wall of the first core part; the rotating piece at least comprises a rotating sleeve body, the position, corresponding to the first ring groove, of the second core part is movably sleeved with the rotating sleeve body, and a first oil outlet communicating with the first ring groove in the radial direction is formed in the side wall, corresponding to the first ring groove, of the rotating sleeve body; the locking pieces are arranged at the two ends of the motorcycle head pipe so that the inner core piece can be axially positioned after being inserted into the motorcycle head pipe; the second end of the second oil channel communicates with the first annular groove, and the second end of the first oil channel communicates with a second oil outlet. Hidden assembly of the oil pipe is achieved, interference of the oil pipe is avoided during steering of the bicycle, and smooth riding is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bicycle accessory technical field, concretely relates to an improved rotary oil-passing head structure and bicycle. BACKGROUND

[0002] At present, the brake oil pipe wiring mode of various bicycles on the market mainly adopts the inside wiring of the frame part, that is, the oil pipe connected with the rear brake lower pump is extended to the inside of the upright column, and the oil pipe connected with the front brake lower pump is directly wired outside.

[0003] The exposed brake oil pipe not only has poor appearance, but also may be touched by external objects during riding, affecting the riding safety and experience; at the same time, the oil pipe inside the frame part needs to be as short as possible for the sake of appearance, but this generates a new problem, that is, the inside oil pipe is pulled or twisted with the rotation of the upright column during vehicle turning, which has great safety hazards and greatly reduces the service life of the oil pipe.

[0004] Therefore, we propose an improved rotary oil-passing head structure and bicycle. SUMMARY

[0005] The present application provides an improved rotary oil-passing head structure and 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 riding safety and experience; at the same time, the inside oil pipe is pulled or twisted with the rotation of the upright column during vehicle turning, which has great safety hazards and greatly reduces the service life of the oil pipe.

[0006] In the first aspect, the present application provides an improved rotary oil-passing head structure, which is used with a bicycle frame, comprising:

[0007] A head pipe is arranged at the front of the bicycle frame;

[0008] An inner core member at least includes a first core part, a first convex ring part, a second core part arranged in sequence in the axial direction, and a first oil channel and a second oil channel opened in the inner core member; a first ring groove is opened on the annular outer wall of the first core part;

[0009] A rotary member at least includes a rotary sleeve, which is movably sleeved on the second core part corresponding to the first ring groove, and a first oil outlet radially communicating with the first ring groove is arranged on the side wall corresponding to the first ring groove;

[0010] A locking member is arranged at both ends of the head pipe to axially position the inner core member after being inserted and assembled on the head pipe;

[0011] The first end of the first oil channel and the second oil channel respectively penetrates the side wall of the second core part to form a first oil inlet and a second oil inlet, and the second end of the second oil channel communicates with the first ring groove, and the second end of the first oil channel penetrates the free end of the first core part and communicates with a second oil outlet.

[0012] Optionally, the rotating member further comprises:

[0013] A hierarchical step is formed on the axial inner wall of the rotating sleeve body and corresponds to the assembly position of the first ring groove, and the two sides of the axial inner wall of the rotating sleeve body are sequentially formed with a first groove and a second groove, wherein the first oil outlet is arranged at the middle position corresponding to the hierarchical step.

[0014] Two rotating sealing rings are respectively arranged in the first groove and are sleeved on the annular outer wall of the first core part to seal the oil path of the first ring groove.

[0015] Two ball bearings are respectively arranged in the second groove, and the inner ring of the ball bearing is connected with the first core part to maintain the rotating assembly of the rotating member on the inner core member; wherein the opposite sides of the two ball bearings are pressed and axially positioned after assembly.

[0016] Optionally, the locking member comprises:

[0017] A first locking member is sleeved on the second core part and is 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 head pipe;

[0018] A second locking member is arranged at the second end of the head pipe and is threadedly connected with the free end of the first core part to axially position the inner core member and the rotating member in cooperation with the first locking member.

[0019] Optionally, the second locking member comprises:

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

[0021] A first locking sleeve body is arranged at the free end of the first core part, and a stepped annular protruding edge is integrally formed at the second end of the first locking sleeve body;

[0022] A locking screw hole is arranged on the side wall of the first locking sleeve body to fix the assembly position of the first locking sleeve body in cooperation with the locking bolt arranged therein;

[0023] A buckle groove is arranged at the second end of the head pipe and forms a buckle structure in cooperation with the annular protruding edge.

[0024] Optionally, the second locking member comprises:

[0025] a second locking sleeve, which is sleeved on the free end of the first core part, and whose first end pushes against the lower end of the rotating member to cooperate with the first locking member to axially position the rotating member, and whose second end is integrally formed with a stepped second annular flange;

[0026] a second nut member, which is arranged in the assembly groove formed in the middle of the second locking sleeve and is screwed with the free end of the first core part to push against the assembly position of the rotating member;

[0027] a locking block, which is inserted into the key groove formed between the second locking sleeve and the first core part to radially position the second locking sleeve;

[0028] a lower bowl group, which is sleeved on the second end of the second locking sleeve and whose inner end abuts against the second annular flange, and whose outer end is integrally formed with a stepped third annular flange, which abuts against the second end of the head tube to form a buckling structure.

[0029] Optionally, the second oil channel is composed of a first oil section and a second oil section which are linearly communicated, 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 the opening of the second oil section.

[0030] The first oil section communicates the first annular groove and the second oil inlet, and the second oil section communicates the first oil inlet and the first oil channel in series.

[0031] Optionally, the second core part comprises a first core section and a second core section, and the first core section and the second core section are arranged axially and fixed to the first core part by a plurality of long pins.

[0032] Optionally, the first oil outlet is connected with a third oil pipe through a movable oil plug, and the movable oil plug and part of the pipe body of the third oil pipe are hiddenly assembled in the oil pipe chamber formed in the side wall of the head tube.

[0033] Optionally, the upper end of the second core part is provided with a tensioning member, which is used to assemble and fix the second core part with the handle tube part of the bicycle frame.

[0034] Optionally, the first oil inlet is connected with the front brake upper pump through a first oil pipe, and the second oil inlet is connected with the rear brake upper pump through a second oil pipe.

[0035] The first oil outlet is connected with the front brake lower pump through a third oil pipe, and the second oil outlet is connected with the rear brake lower pump through a fourth oil pipe.

[0036] In a second aspect, the application provides a bicycle comprising the improved rotary oil passing front structure of the first aspect.

[0037] Compared with the related art, the improved rotary oil passing front structure and the bicycle provided by the application have at least the following technical effects:

[0038] The oil pipe hidden assembly when the bicycle is loaded is realized, and when the bicycle turns, the rotation of the inner core member drives the rotation of the front fork and the front wheel to realize the turning function, the fourth oil pipe which is sleeved in the bicycle frame is fully hidden and assembled in the bicycle frame, and the fourth oil pipe can rotate with the turning and will not be twisted and damaged with the turning, and the rotary member is movably sleeved on the inner core member, so that the third oil pipe connected to the first oil outlet on the rotary member will not be twisted and damaged with the turning, and the third oil pipe does not need to reserve the turning length exposed outside, can be directly connected to the front brake lower pump as short as possible, improves the loading aesthetics, and avoids damage caused by the exposure of the oil pipe. At the same time, through the optimization of the structure, the machining difficulty of the oil passage on the inner core member is greatly reduced, and the smoothness of the oil passage is ensured.

[0039] 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 apparent. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0041] Figure 1 It is a perspective view of the improved rotary oil passing front structure according to an exemplary embodiment.

[0042] Figure 2 It is a first perspective view of the improved rotary oil passing front structure according to an exemplary embodiment.

[0043] Figure 3 It is a second perspective view of the improved rotary oil passing front structure according to an exemplary embodiment.

[0044] Figure 4 It is a perspective view of the improved rotary oil passing front structure according to another exemplary embodiment.

[0045] Figure 5 It is a first perspective view of the improved rotary oil passing front structure according to another exemplary embodiment.

[0046] Figure 6 is a second perspective sectional view of the improved rotary oiling vehicle bow structure according to another exemplary embodiment.

[0047] Explanation of reference numerals: inner core member 10; first oil passage 100; first core portion 101; first convex ring portion 102; second core portion 103; second oil passage 104; first ring groove 105; first locking member 20;

[0048] Second core portion 103: first core segment 1031; second core segment 1032; long pin 1033;

[0049] Second oil passage 104: first oil segment 1041; second oil segment 1042; first oil seal bolt 1043; second oil seal bolt 1044;

[0050] Rotary member 40: rotary sleeve body 401; hierarchical step 402; first oil outlet 403; bearing 404; rotary sealing ring 405;

[0051] Vehicle head pipe 50;

[0052] Second locking member 60: buckle edge groove 600; first locking sleeve body 601; first annular convex edge 602; locking screw hole 609; first nut member 610;

[0053] Second locking member 60: second locking sleeve body 603; second nut member 604; second annular convex edge 605; lower bowl group 606; third annular convex edge 607; locking block 608;

[0054] First oil pipe 701; second oil pipe 702; third oil pipe 703; fourth oil pipe 704. DETAILED DESCRIPTION

[0055] The technical solutions of the present application will be described clearly and completely below in conjunction 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.

[0056] In the description of the utility model, it needs to be explained that, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0057] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be broadly understood, 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 an intermediate medium, or it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0058] In the related art, the brake oil pipe is exposed, which not only has poor appearance, but also the exposed oil pipe may be touched by external objects during riding, affecting the riding safety and riding experience; at the same time, the oil pipe inserted into the frame part needs to be as short as possible for the sake of appearance, but this produces a new problem, that is, when the vehicle turns, the inserted oil pipe will be 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.

[0059] Based on the above situation, the utility model embodiment provides an improved rotary oil passing vehicle head structure and bicycle, which is described in detail below in combination with specific embodiments and drawings.

[0060] Embodiment 1

[0061] The utility model embodiment 1 provides an improved rotary oil passing vehicle head structure. Figure 1 It is a perspective view of the improved rotary oil passing vehicle head structure according to an exemplary embodiment. Figure 2 It is a first view angle sectional view of the improved rotary oil passing vehicle head structure according to an exemplary embodiment. Figure 3 It is a second view angle sectional view of the improved rotary oil passing vehicle head structure according to an exemplary embodiment. As Figures 1-3 As shown in the figure, the improved rotary oil passing vehicle head structure is used with a bicycle frame, which comprises:

[0062] The head pipe 50 is arranged at the front part of the bicycle frame, and in this embodiment, the lower part of the front part of the bicycle frame is used for assembling the front fork, the front wheel and the front brake lower pump.

[0063] The inner core member 10 at least includes an axial sequence of a first core portion 101, a first convex ring portion 102, a second core portion 103, and a first oil channel 100 and a second oil channel 104 axially opened in the inner core member 10, and the annular outer wall of the first core portion 101 is provided with a first ring groove 105;

[0064] The rotating member 40 at least includes a rotating sleeve body 401, which is movably sleeved on the second core portion 103 at a position corresponding to the first ring groove 105, and the side wall corresponding to the first ring groove 105 is provided with a first oil outlet 403 radially communicating with the first ring groove 105;

[0065] The locking member is arranged at both ends of the head pipe 50 to axially position the inner core member 10 after being inserted and arranged on the head pipe 50;

[0066] The first end of the first oil channel 100 and the first end of the second oil channel 104 both penetrate the side wall of the second core portion 103 to form a first oil inlet and a second oil inlet, respectively, the second end of the second oil channel 104 communicates with the first ring groove 105, the second end of the first oil channel 100 penetrates the free end of the first core portion 101 and communicates with a second oil outlet, the first oil outlet 403 is connected with a third oil pipe 703 through a movable oil plug, and the movable oil plug and part of the pipe body of the third oil pipe 703 are hiddenly assembled in an oil pipe chamber 504 opened on the side wall of the head pipe 50.

[0067] In the technical solution of the above embodiment, referring to the accompanying Figures 1-3 The first oil inlet is connected with a front brake upper pump through a first oil pipe 701, the second oil inlet is connected with a rear brake upper pump through a second oil pipe 702, the first oil outlet 403 is connected with a front brake lower pump through a third oil pipe 703, and the second oil outlet is connected with a rear brake lower pump through a fourth oil pipe 704; it can be understood that an oil pipe quick connector can be pre-assembled on the oil pipe to realize quick connection, the oil pipe quick connector is a prior art, and those skilled in the art can obtain the knowledge from the public channels, and the oil pipe quick connector structure disclosed in Chinese Patent ZL202411928412.1 is used in the example embodiment, and details are not described herein again, the fourth oil pipe 704 runs in the bicycle frame and extends out to connect the rear brake lower pump at a position close to the rear brake lower pump, thereby realizing the full hidden assembly of the fourth oil pipe 704; the first oil outlet 403 is close to the front wheel of the bicycle frame, and the third oil pipe 703 can directly connect the front brake lower pump close to the front wheel of the bicycle frame, thereby avoiding the exposure of the third oil pipe 703 as short as possible and realizing the hidden assembly;

[0068] When the bicycle turns, the handle drives the inner core 10 and the front fork connected to the inner core 10 to rotate in the head tube 50 to realize the turning function, the fourth oil pipe 704 which is sleeved in the bicycle frame runs in the bicycle head tube 50 into the frame to be fully hidden and assembled, and the fourth oil pipe 704 can rotate with the turning and will not be twisted and damaged due to rotation with the turning. The rotating part 40 movably sleeved on the inner core 10, so that the third oil pipe 703 connected to the first oil outlet 403 on the rotating part 40 will not be twisted and damaged due to rotation with the turning. The oil pipe does not need to reserve the turning length exposed outside, can be sleeved and hidden, improves the appearance of the bicycle, and avoids damage caused by the exposure of the oil pipe.

[0069] In this embodiment, referring to the accompanying drawings Figures 1-3 , the rotating part 40 further comprises:

[0070] The hierarchical step 402 is formed on the axial inner wall of the rotating sleeve body 401 and corresponds to the assembly position of the first ring groove 105, and the two sides of the axial inner wall of the rotating sleeve body 401 are sequentially formed with a first groove position 402 and a second groove position. The first oil outlet 403 is arranged at the middle position corresponding to the hierarchical step;

[0071] The rotating sealing ring 404 is two, which is assembled in the first groove position 402 and sleeved on the annular outer wall of the first core 101 to seal the oil channel of the first ring groove 105;

[0072] The ball bearing 405 is two, which is assembled in the second groove position and the inner ring of which is connected with the first core 101 to maintain the rotating assembly of the rotating part 40 on the inner core 10. The opposite sides of the two ball bearings 405 are pressed and axially positioned after assembly. In this embodiment, the ball bearing 404 is a deep groove ball bearing.

[0073] In this embodiment, continue to refer to the accompanying drawings Figures 1-3 , the locking part comprises:

[0074] The first locking part 20 is sleeved on the second core 103 and is limited by the first convex ring part 102, and the outer end edge of the first locking part 20 abuts against the edge of the first end of the head tube 50;

[0075] The second locking part 60 is assembled at the second end of the head tube 50 and is threadedly assembled with the free end of the first core 101 to axially position the inner core 10 and the rotating part 40 with the first locking part 20. The second locking part 60 comprises:

[0076] A second locking sleeve 603, which is sleeved on the free end of the first core 101, and the first end of the second locking sleeve 603 abuts against the lower end of the rotating member 40 to axially position the rotating member 40 in cooperation with the first locking member 20, and the second end of the second locking sleeve 603 is integrally formed with a stepped second annular flange 605;

[0077] A second nut member 604, which is arranged in the assembly groove formed in the middle of the second locking sleeve 603 and is screwed with the free end of the first core 101 to abut against the assembly position of the rotating member 40;

[0078] A locking block 608, which is inserted into the key groove formed between the second locking sleeve 603 and the first core 101 to radially position the second locking sleeve 603;

[0079] A lower bowl set 606, which is sleeved on the second end of the second locking sleeve 603 and abuts against the second annular flange 605 at the inner end, and is integrally formed with a stepped third annular flange 607 at the outer end, and the third annular flange 607 abuts against the second end of the head pipe 50 to form a buckling structure.

[0080] In the technical solution of the above embodiment, during assembly, the fourth oil pipe 704 is first threaded in the bicycle frame, then the first locking member 20 is assembled on the upper end of the head pipe 50, and the first core 101 of the inner core member 10 is inserted;

[0081] The lower bowl set 606 is sleeved on the second locking sleeve 603, and the second locking sleeve 603 is sleeved on the first core 101 of the inner core member 10, the locking block 608 is inserted into the key groove formed between the second locking sleeve 603 and the first core 101 to radially position the second locking sleeve 603, then the second nut member 604 is screwed from the lower part of the second locking sleeve 603 until the third annular flange 607 of the lower bowl set 606 abuts against the second end of the head pipe 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 does not need to be changed during the assembly of the whole vehicle, and the embodiment can be directly replaced, and the assembly is more efficient.

[0082] The third oil pipe 703 is sequentially connected to the first oil outlet 403, the fourth oil pipe 704 is connected to the second oil outlet, the first oil pipe 701 is connected to the first oil inlet 204, and the second oil pipe 702 is connected to the second oil inlet 205, and the oil circuit connection is completed.

[0083] In summary, the improved rotary oil passing bicycle head structure provided in Embodiment 1 of the present application realizes the oil pipe hidden assembly when the bicycle is loaded, and when the bicycle turns, the rotation of the inner core member 10 drives the rotation of the front fork and the front wheel to realize the turning function, the fourth oil pipe 704 which is sleeved in the bicycle frame is fully hidden and assembled in the bicycle frame, and the fourth oil pipe 704 can rotate with the turning and will not be twisted and damaged with the turning, and the rotary member 40 is movably sleeved on the inner core member 10, so that the third oil pipe 703 connected to the first oil outlet 403 on the rotary member 40 will not be twisted and damaged with the turning, and the third oil pipe 703 does not need to reserve the turning length exposed outside, can be directly connected to the front brake lower pump as short as possible, improves the loading aesthetics, and avoids the damage of the exposed oil pipe.

[0084] Embodiment 2

[0085] The utility model embodiment provides a kind of improved rotary oil passing bicycle head structure. Figure 4 It is the perspective drawing of the improved rotary oil passing bicycle head structure according to another exemplary embodiment. Figure 5 It is the first view cutaway view of the improved rotary oil passing bicycle head structure according to another exemplary embodiment. Figure 6 It is the second view cutaway view of the improved rotary oil passing bicycle head structure according to another exemplary embodiment. Figures 4-6 As shown, the improved rotary oil passing bicycle head structure is used with a bicycle frame, comprising:

[0086] The head pipe 50 is arranged at the front of the bicycle frame, and in the present embodiment, the lower part of the front of the bicycle frame is used to assemble the front fork, the front wheel and the front brake lower pump.

[0087] The inner core member 10 at least includes the first core portion 101, the first convex ring portion 102 and the second core portion 103 arranged in sequence in the axial direction, and the first oil channel 100 and the second oil channel 104 are arranged in the interior of the inner core member 10 in the axial direction, and the annular outer wall of the first core portion 101 is provided with the first annular groove 105.

[0088] The rotary member 40 at least includes the rotary sleeve body 401, the rotary sleeve body 401 is movably sleeved at the position corresponding to the first annular groove 105 of the second core portion 103, and the side wall corresponding to the first annular groove 105 is provided with the first oil outlet 403 radially communicating with the first annular groove 105; in the present embodiment, the first annular groove 105 cooperates with the inner wall of the rotary sleeve body 401 to form the annular oil channel.

[0089] The locking member is arranged at both ends of the head pipe 50 to axially position the inner core member 10 after being inserted and assembled on the head pipe 50.

[0090] The first end of the first oil channel 100 and the first end of the second oil channel 104 each penetrate the side wall surface of the second core portion 103 to form a first oil inlet and a second oil inlet, respectively, and the second end of the second oil channel 104 communicates with the first ring groove 105, and the second end of the first oil channel 100 penetrates the free end of the first core portion 101 and communicates with a second oil outlet, and the first oil outlet 403 is connected with a third oil pipe 703 through a movable oil plug, and the movable oil plug and part of the third oil pipe 703 are hidden and assembled in the oil pipe cavity 504 formed in the side wall of the head pipe 50.

[0091] In the technical solution of the above embodiment, reference is made to the accompanying Figures 1-3 The first oil inlet is connected with the front brake upper pump through the first oil pipe 701, the second oil inlet is connected with the rear brake upper pump through the second oil pipe 702, the first oil outlet 403 is connected with the front brake lower pump through the third oil pipe 703, and the second oil outlet is connected with the rear brake lower pump through the fourth oil pipe 704. It can be understood that the oil pipe can be pre-assembled with an oil pipe quick connector to realize quick connection, and the oil pipe quick connector is a prior art which can be obtained by the public. In this example embodiment, the oil pipe quick connector structure disclosed in Chinese patent ZL202411928412.1 is used, and details are not described here. The fourth oil pipe 704 runs in the bicycle frame and extends out to connect the rear brake lower pump near the rear brake lower pump, realizing full hidden assembly of the fourth oil pipe 704. The first oil outlet 403 is close to the front wheel of the bicycle frame, and the third oil pipe 703 can directly connect the front brake lower pump near the front wheel of the bicycle frame, so as to avoid the exposure of the third oil pipe 703 as short as possible, realizing hidden assembly.

[0092] When the bicycle turns, the handle drives the inner core 10 and the front fork connected with the inner core 10 to rotate in the head pipe 50 to realize the turning function. The fourth oil pipe 704 running in the bicycle frame is fully hidden in the head pipe 50 of the bicycle, and the fourth oil pipe 704 can rotate with the turning, and will not be twisted and damaged due to rotation. The return member 40 is movably sleeved on the inner core 10, so that the third oil pipe 703 connected with the first oil outlet 403 on the return member 40 will not be twisted and damaged due to rotation, and the turning length of the oil pipe does not need to be reserved, which can be hidden and assembled, improves the appearance of the bicycle, and avoids damage of the exposed oil pipe.

[0093] In the embodiment, when the front brake upper pump brakes, the input oil is injected into the first oil inlet 204 through the first oil pipe 701, then the oil reaches the first oil channel 107 through the first annular groove 104, and is output to the front brake lower pump through the first oil outlet 109 and the third oil pipe 703 for hydraulic braking; when the rear brake upper pump brakes, the input oil is injected into the second oil inlet 205 through the second oil pipe 702, then the oil reaches the second oil channel 108 through the second annular groove 105 and enters the third annular groove 106, and is output to the rear brake lower pump through the first oil outlet 403 and the fourth oil pipe 704 for hydraulic braking.

[0094] In the embodiment, referring to the accompanying drawings Figures 4-6 , the rotating member 40 further comprises:

[0095] The hierarchical step 402 is formed on the axial inner wall of the rotating sleeve body 401 and corresponds to the assembly position of the first annular groove 105, and the two sides of the axial inner wall of the rotating sleeve body 401 are sequentially formed with a first groove position 402 and a second groove position, wherein the first oil outlet 403 is opened at the middle position corresponding to the hierarchical step;

[0096] The rotating sealing ring 404 is two in number, is assembled in the first groove position 402, and is sleeved on the annular outer wall of the first core part 101 to seal the oil path of the first annular groove 105;

[0097] The ball bearing 405 is two in number, is assembled in the second groove position, and the inner ring thereof is connected with the first core part 101 to maintain the rotating assembly of the rotating member 40 on the inner core member 10; wherein the opposite sides of the two ball bearings 405 are assembled to press and axially position the rotating sealing ring 404, and in the embodiment, the ball bearing 404 is a deep groove ball bearing.

[0098] In the technical scheme of the above embodiment, the rotating sealing ring 405 is provided, which effectively ensures the sealing of the annular oil path, avoids oil leakage and prevents dust from entering, and the ball bearing 404 is also provided, which reduces the rotating friction force of the rotating member 40 on the inner core member 10, and the steering is smooth and does not damage the oil path.

[0099] In the embodiment, continuing to refer to the accompanying drawings Figures 4-6 , the locking member comprises:

[0100] The first locking member 20 is sleeved on the second core part 103 and is limited by the first convex ring part 102, and the outer end edge of the first locking member 20 abuts against the edge of the first end of the head pipe 50; further, in the embodiment, a rubber gasket can be arranged between the first locking member 20 and the first convex ring part 102 to prevent water and dust;

[0101] A second locking member 60 is assembled to the second end of the head tube 50 and is screwed to the free end of the first core 101 to cooperate with the first locking member 20 to axially position the inner core member 10 and the swivel member 40; in this embodiment, the second locking member 60 comprises:

[0102] A first nut member 610 is screwed to the first core 101 to cooperate with the first locking member 20 to axially position the swivel member 40;

[0103] A first locking sleeve 601 has its first end assembled to the free end of the first core 101 and its second end integrally formed with a stepped first annular flange 602;

[0104] A locking hole 609 is formed in the sidewall of the first locking sleeve 601 to cooperate with a locking bolt assembled therein to fix the assembly position of the first locking sleeve 601;

[0105] A buckle groove 600 is formed in the second end of the head tube 50 to cooperate with the annular flange 602 to form a buckle structure.

[0106] In the technical solution of the above embodiment, during assembly, the fourth oil pipe 704 is first threaded into the bicycle frame, then the first locking member 20 is assembled to the upper end of the head tube 50, and the first core 101 of the inner core member 10 is inserted;

[0107] Then, the swivel member 40, the first nut member 610, and the first locking sleeve 601 are sequentially assembled, the first annular flange 602 at the second end of the first locking sleeve 601 abuts against the buckle groove 600 at the second end of the head tube 50, the assembly position of the first locking sleeve 601 is fixed by a locking bolt, and the main body assembly is completed;

[0108] The third oil pipe 703 is sequentially connected to the first oil outlet 403, the fourth oil pipe 704 is connected to the second oil outlet, the first oil pipe 701 is connected to the first oil inlet 204, and the second oil pipe 702 is connected to the second oil inlet 205, and the oil circuit connection is completed.

[0109] Further, in the embodiment, the upper end of the second core portion 103 is provided with a tensioning member, which is used for assembling and fixing the second core portion 103 with the handle tube portion of the bicycle frame. The tensioning member can be an upper cover, and the lower end of the upper cover is provided with a pressing edge portion, which is connected with the upper end of the second core portion 103 through an axially arranged cover bolt, so as to assemble and fix the handle tube portion of the bicycle frame with the second core portion 103. Specifically, the handle tube portion of the bicycle frame is fixedly assembled on the second core portion 103, and the first oil pipe 701 and the second oil pipe 702 can be hiddenly assembled in the pipe cavity of the handle tube portion, so as to realize the hidden assembly of the oil pipes. Further, the first oil pipe 701 and the second oil pipe 702 can be arranged in the handle tube, and are arranged to extend out near the brake handle or are directly connected with the brake handle, so as to realize the full hidden arrangement of the oil pipes, and the oil pipe protection effect is good, and the appearance of the bicycle frame is improved.

[0110] In conclusion, the improved rotary oil passing bicycle head structure provided in the embodiment 2 realizes the hidden assembly of the oil pipes when the bicycle is assembled, and when the bicycle is turned, the rotation of the inner core member 10 drives the rotation of the front fork and the front wheel to realize the turning function. The fourth oil pipe 704 arranged in the bicycle frame is arranged in the bicycle frame in a full hidden manner, and the fourth oil pipe 704 can rotate with the turning, and will not be twisted and damaged with the turning. The rotary member 40 is movably arranged on the inner core member 10, so that the third oil pipe 703 connected with the first oil outlet 403 on the rotary member 40 will not be twisted and damaged with the turning. The third oil pipe 703 does not need to be reserved with an exposed turning length, and can be directly connected with the front brake lower pump as short as possible, so as to improve the appearance of the bicycle frame and avoid the damage of the exposed oil pipes.

[0111] Embodiment 3

[0112] The improved rotary oil passing bicycle head structure provided in the embodiment 3 is different from the embodiments 1-2 in that, referring to the accompanying drawings, Figures 5-6 The second oil channel 104 is composed of the first oil section 1041 and the second oil section 1042 which are linearly communicated. In the embodiment, the second oil channel 104 is arranged at the free end of the second core portion 103. The diameter of the first oil section 1041 is smaller than that of the second oil section 1042, and the second oil section 1042 is provided with the first oil sealing bolt 1043 and the second oil sealing bolt 1044.

[0113] The first oil section 1041 is communicated with the first ring groove 105 and the second oil inlet, and the second oil section 1042 is communicated with the first oil channel 100 and the first oil inlet.

[0114] The technical scheme of the above embodiment is characterized in that, in order to facilitate the drilling of the first oil channel 100 and the second oil channel 104 and the smoothness of the oil channel, the second oil channel 104 is designed to have a segmented structure, the first oil segment 1041 is blocked by the second oil plug 1044 to realize the communication between the first ring groove 105 and the second oil inlet, the second oil segment 1042 is blocked by the first oil plug 1043 and the second oil plug 1044, and the first oil inlet is drilled to be communicated to the first oil channel 100 to form a relay oil channel, thereby realizing the communication between the first oil inlet and the second oil outlet.

[0115] The oil channel processing difficulty on the inner core part 10 is effectively reduced, and the smoothness of the oil circuit is ensured.

[0116] Embodiment 4

[0117] The utility model embodiment 4 still provides an improved rotary oil passing car head structure, and the difference from the embodiments 1-3 is that, referring to the attached Figures 2-3 The second core part 103 includes the first core segment 1031 and the second core segment 1032, and the first core segment 1031 and the second core segment 1032 are axially arranged and fixed to the first core part 101 through a plurality of long pins 1033.

[0118] In the technical scheme of the above embodiment, in order to facilitate the drilling of the first oil channel 100 and the second oil channel 104 and the smoothness of the oil channel, the three-segment structure of the inner core part 10 is designed, the second core part 103 is split into the first core segment 1031 and the second core segment 1032, and the first core segment 1031 and the second core segment 1032 are fixed to the first core part 101 through a plurality of long pins 1033, therefore, the hole positions and the oil channels on the first core segment 1031, the second core segment 1032 and the first core part 101 can be drilled separately, the oil channels are communicated when assembled, the oil channel processing difficulty on the inner core part 10 is effectively reduced, and the smoothness of the oil circuit is ensured.

[0119] Further, in the embodiment, referring to the attached Figures 5-6 The first convex ring part 102 can also be separately processed and then fixed and assembled on the core shaft part 10 through threads or pins to further reduce the processing difficulty and improve the processing efficiency.

[0120] Embodiment 5

[0121] The utility model embodiment 5 provides a bicycle, which includes the improved rotary oil passing car head structure of any one of the embodiments 1-4.

[0122] Other structures not described refer to the embodiments 1-4.

[0123] In summary, the improved rotary oil car head structure and bicycle provided by the embodiment 5 of the present application realizes the hidden assembly of the oil pipe when the bicycle is loaded on the car, and when the bicycle is turned, the rotation of the inner core 10 drives the rotation of the front fork and the front wheel to realize the turning function, the fourth oil pipe 704 which is sleeved in the bicycle frame is fully hidden and assembled in the bicycle frame, and the fourth oil pipe 704 can rotate with the turning and will not be twisted and damaged with the turning, and the rotary part 40 is movably sleeved on the inner core 10, so that the third oil pipe 703 connected to the first oil outlet 403 on the rotary part 40 will not be twisted and damaged with the turning, and the third oil pipe 703 does not need to reserve the turning length exposed outside, can be directly connected to the front brake lower pump as short as possible, improves the loading appearance, and avoids the damage of the exposed oil pipe; at the same time, through the optimization of the structure, the machining difficulty of the oil channel on the inner core 10 is greatly reduced, and the smoothness of the oil circuit is ensured.

[0124] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0125] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, on the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An improved swivel oiler bow structure for use with a bicycle frame, comprising: Comprising: A head tube is arranged at the front of the bicycle frame; An inner core member at least includes a first core portion, a first protruding ring portion, a second core portion arranged axially in sequence, and a first oil channel and a second oil channel axially arranged in the inner core member; a first annular groove is arranged on the annular outer wall of the first core portion; A rotating member at least includes a rotating sleeve, which is movably arranged on the second core portion corresponding to the first annular groove, and a first oil outlet radially communicating with the first annular groove is arranged on the side wall corresponding to the first annular groove; Locking members are arranged at both ends of the head tube to axially position the inner core member after being inserted and assembled on the head tube; Wherein, the first end of the first oil channel and the second oil channel penetrates the side wall of the second core portion to form a first oil inlet and a second oil inlet respectively, and the second end of the second oil channel communicates with the first annular groove, and the second end of the first oil channel penetrates the free end of the first core portion and communicates with a second oil outlet.

2. The improved rotating oiling bow structure of claim 1, wherein: The rotating member further comprises: A hierarchical step is formed on the axial inner wall of the rotating sleeve corresponding to the assembly position of the first annular groove, and the two sides of the axial inner wall of the rotating sleeve are sequentially formed with a first groove and a second groove, wherein the first oil outlet is arranged at the middle position corresponding to the hierarchical step; Two rotating sealing rings are assembled in the first groove and are arranged on the annular outer wall of the first core portion to seal the oil path of the first annular groove; Two ball bearings are assembled in the second groove, and the inner ring of the ball bearing is connected with the first core portion to maintain the rotating assembly of the rotating member on the inner core member.

3. The improved rotating oiling bow structure of claim 2, wherein: The locking member comprises: A first locking member is arranged on the second core portion and is limited by the first protruding ring portion, and the outer end edge of the first locking member abuts against the edge of the first end of the head tube; A second locking member is assembled on the second end of the head tube and is threadedly assembled with the free end of the first core portion to axially position the inner core member and the rotating member with the first locking member.

4. The improved rotating oiling bow structure of claim 3, wherein: The second locking member comprises: A first nut member is threadedly assembled on the first core portion to axially position the rotating member with the first locking member; A first locking sleeve is assembled on the free end of the first core portion, and a stepped first annular protruding edge is integrally formed on the second end of the first locking sleeve; A locking screw hole is arranged on the side wall of the first locking sleeve to fix the assembly position of the first locking sleeve with a locking screw assembled therein; A buckle edge groove is arranged on the second end of the head tube to form a buckling structure with the annular protruding edge.

5. The improved rotating oiling bow structure of claim 3, wherein: The second locking member comprises: A second locking sleeve is arranged on the free end of the first core portion, the first end of the second locking sleeve abuts against the lower end of the rotating member to axially position the rotating member with the first locking member, and a stepped second annular protruding edge is integrally formed on the second end of the second locking sleeve; A second nut member is arranged in the assembly slot in the middle of the second locking sleeve and is screwed with the free end of the first core to push the assembly position of the rotating member; A locking block is inserted into the key slot formed between the second locking sleeve and the first core to radially position the second locking sleeve; A lower bowl group is sleeved on the second end of the second locking sleeve, and the inner end abuts against the second annular convex edge, and the outer end is integrally formed with a third annular convex edge in the shape of a step, which abuts against the second end of the head pipe to form a buckling structure.

6. The improved rotating oiling bow structure of claim 1, wherein: The second oil channel is composed of a first oil section and a second oil section in straight line communication, and a second oil plug is arranged between the first oil section and the second oil section, and a first oil plug is arranged at the opening of the second oil section. 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 inlet and the first oil channel.

7. The improved rotating oiling bow structure of claim 1, wherein: The second core includes a first core section and a second core section, which are arranged axially and fixed to the first core by a plurality of long pins.

8. The improved rotating oiling bow structure of claim 1, wherein: The first oil outlet is connected with a third oil pipe through a movable oil plug, and the movable oil plug and part of the pipe body of the third oil pipe are hidden and assembled in the oil pipe cavity formed in the side wall of the head pipe.

9. The improved rotating oiling bow structure of claim 1, wherein: The upper end of the second core is provided with a tensioning member for assembling and fixing the second core with the handle tube part of the bicycle frame.

10. The improved rotating oiling bow structure of claim 1, wherein: The first oil inlet is connected with the front brake upper pump through a first oil pipe, and the second oil inlet is connected with the rear brake upper pump through a second oil pipe. The first oil outlet is connected with the front brake lower pump through a third oil pipe, and the second oil outlet is connected with the rear brake lower pump through a fourth oil pipe.

11. A bicycle characterized in that, The improved rotating oil passing head structure comprises the improved rotating oil passing head structure according to any one of claims 1-10.

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