Improved rotary oil passing bicycle head structure and bicycle

Abstract

The invention 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 invention relates to the technical field of bicycle accessories, and in particular to an improved rotary oil-passing front wheel structure and a bicycle. Background Art

[0002] At present, the brake oil pipe routing methods of various common bicycles on the market mainly adopt internal routing of the frame part, that is, the oil pipe connected to the rear brake lower pump extends to the column under the handlebar and then passes through the column, while the front part is still external routing, and the oil pipe connected to the front brake lower pump directly adopts external routing.

[0003] The exposed brake oil pipe not only has a poor appearance, but also is likely to be touched by foreign objects when riding, affecting riding safety and riding experience. At the same time, the oil pipe that passes through the frame needs to be exposed as short as possible for aesthetic reasons, but this creates a new problem, that is, when the vehicle turns, the oil pipe will be pulled or twisted as the column rotates, which poses a great safety hazard and greatly reduces the life of the oil pipe.

[0004] Therefore, we propose an improved rotary oil-passing vehicle head structure and a bicycle. Summary of the invention

[0005] The present application provides an improved revolving oil-passing front structure and a bicycle, so as to at least solve the problem that the brake oil pipe is exposed in the prior art, which not only has a poor appearance, but also the exposed oil pipe is likely to be touched by foreign objects when riding, affecting riding safety and riding experience; at the same time, when the vehicle turns, the oil pipe passing inside will be pulled or twisted as the column rotates, which poses a great safety hazard and greatly shortens the life of the oil pipe.

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

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

[0008] The inner core component at least comprises a first core portion, a first convex ring portion, a second core portion, which are arranged in sequence in the axial direction, and a first oil passage and a second oil passage axially opened inside the inner core component, wherein a first annular groove is opened on the annular outer wall of the first core portion;

[0009] A rotating member, comprising at least a rotating sleeve, wherein the rotating sleeve is movably sleeved on a position of the second core corresponding to the first annular groove, and a first oil outlet radially connected to the first annular groove is provided on a side wall thereof corresponding to the first annular groove;

[0010] Locking parts, which are arranged at both ends of the head tube so that the inner core part can be axially positioned after being inserted on the head tube;

[0011] Among them, the first ends of the first oil channel and the second oil channel both penetrate the side wall surface of the second core to form a first oil inlet and a second oil inlet respectively, and the second end of the second oil channel is connected to the first annular groove, and the second end of the first oil channel penetrates the free end of the first core and is connected to the second oil outlet.

[0012] Optionally, the rotating member further comprises:

[0013] A stepped step is formed on the axial inner wall of the rotating sleeve body and corresponds to the assembly position of the first annular groove, and the first groove and the second groove are sequentially formed on both sides of the axial inner wall of the rotating sleeve body, wherein the first oil outlet is opened at a middle position corresponding to the stepped step;

[0014] Two rotary sealing rings are respectively installed in the first grooves and sleeved on the annular outer wall of the first core to seal the oil passage of the first annular groove;

[0015] Two ball bearings are respectively installed in the second groove and their inner rings are connected to the first core to maintain the rotational assembly of the rotating part on the inner core; wherein, after assembly, the facing sides of the two ball bearings are both pressed and axially positioned to position the rotating sealing ring.

[0016] Optionally, the locking element includes:

[0017] A first locking member, which is sleeved on the second core portion and limited by the first convex ring portion, and the outer end edge of the first locking member abuts against the edge of the first end of the head tube;

[0018] A second locking member is assembled on the second end of the head pipe and is threadedly assembled with the free end of the first core to cooperate with the first locking member to axially position the inner core member and the rotating member.

[0019] Optionally, the second locking member comprises:

[0020] a first nut member, wherein the first nut member is threadedly assembled on the first core portion to cooperate with the first locking member to axially position the rotating member;

[0021] A first locking sleeve, a first end of which is assembled on the free end of the first core, and a second end of which is integrally formed with a first annular convex edge in a stepped shape;

[0022] A locking screw hole is provided on the side wall of the first locking sleeve body to cooperate with a locking bolt assembled therein to fix the first locking sleeve body in an assembled position;

[0023] A buckle groove is provided at the second end of the head tube and cooperates with the annular convex edge to form a buckle structure.

[0024] Optionally, the second locking member comprises:

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

[0026] A second nut member, which is arranged in the assembly groove opened in the middle of the second locking sleeve body and is threadedly assembled with the free end of the first core portion to push and position the assembly position of the rotating member;

[0027] a locking block inserted into a keyway formed between the second locking sleeve and the first core portion to radially position the second locking sleeve;

[0028] The lower bowl assembly is sleeved on the second end of the second locking sleeve and its inner end abuts the second annular flange. The outer end of the lower bowl assembly is integrally formed with a third annular flange in a stepped shape. The third annular flange abuts the second end of the head tube to form a buckling structure.

[0029] Optionally, the second oil passage is composed of a first oil section and a second oil section which are connected in a straight line, and a second oil seal plug is provided between the first oil section and the second oil section, and a first oil seal plug is provided at the opening of the second oil section;

[0030] The first oil section is connected to the first annular groove and the second oil inlet, and the second oil section is connected to the first oil inlet and the first oil passage via a relay.

[0031] Optionally, the second core portion includes a first core segment and a second core segment, and the first core segment and the second core segment are axially arranged and fixed to the first core portion by a plurality of long pins.

[0032] Optionally, the first oil outlet is connected to a third oil pipe via a movable oil plug, and the movable oil plug and a part of the third oil pipe are concealed and assembled in an oil pipe chamber opened on the side wall of the head pipe.

[0033] Optionally, a tensioner is provided at the upper end of the oil kit, and the tensioner is used to assemble and fix the second core part to the handlebar portion of the bicycle frame.

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

[0035] The first oil outlet is connected to the front brake pump via the third oil pipe, and the second oil outlet is connected to the rear brake pump via the fourth oil pipe.

[0036] In a second aspect, the present application provides a bicycle comprising the improved rotating oil-passing bow structure of the first aspect.

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

[0038] The oil pipe is hidden when the bicycle is loaded onto a vehicle, and when the bicycle turns, the rotation of the inner core component drives the front fork and the front wheel to rotate to realize the steering function. The fourth oil pipe inserted into the bicycle frame is fully hidden in the bicycle frame, and the fourth oil pipe can rotate with the turning, and will not be twisted and damaged by the turning. The rotating part is movably sleeved on the inner core component, so the third oil pipe connected to the first oil outlet on the rotating part will not be twisted and damaged by the turning. There is no need to reserve an exposed steering length for the third oil pipe, and the front brake lower pump can be directly connected as short as possible, thereby improving the appearance of the loading and avoiding damage to the exposed oil pipe. At the same time, through the optimization of the structure, the difficulty of processing the oil channel on the inner core component is greatly reduced, ensuring smooth oil channels.

[0039] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 It is a stereoscopic diagram of an improved rotary oil-passing vehicle head structure according to an exemplary embodiment.

[0042] Figure 2 It is a cross-sectional view from a first perspective of an improved rotary oil-passing vehicle head structure shown according to an exemplary embodiment.

[0043] Figure 3 It is a cross-sectional view from a second perspective of an improved rotary oil-passing vehicle head structure shown according to an exemplary embodiment.

[0044] Figure 4 It is a stereoscopic view of an improved rotary oil-passing vehicle head structure according to another exemplary embodiment.

[0045] Figure 5 It is a cross-sectional view from a first perspective of an improved rotary oil-passing vehicle head structure shown according to another exemplary embodiment.

[0046] Figure 6 It is a cross-sectional view from a second perspective of an improved rotary oil-passing vehicle head structure shown according to another exemplary embodiment.

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

[0048] The second core part 103 includes a first core segment 1031 ; a second core segment 1032 ; and a long pin 1033 ;

[0049] The second oil passage 104: a first oil section 1041; a second oil section 1042; a first oil seal plug 1043; a second oil seal plug 1044;

[0050] Rotating member 40: rotating sleeve 401; stepped step 402; first oil outlet 403; bearing 404; rotating sealing ring 405;

[0051] Head pipe 50;

[0052] The second locking member 60 includes a buckle groove 600 ; a first locking sleeve body 601 ; a first annular flange 602 ; a locking screw hole 609 ; and a first nut member 610 .

[0053] The second locking member 60 includes a second locking sleeve 603; a second nut member 604; a second annular flange 605; a lower bowl assembly 606; a third annular flange 607; and a locking block 608;

[0054] The first oil pipe 701 ; the second oil pipe 702 ; the third oil pipe 703 ; and the fourth oil pipe 704 . DETAILED DESCRIPTION

[0055] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the related art, the brake oil pipe is exposed, which not only has a poor appearance, but also is likely to be touched by foreign objects when riding, affecting riding safety and riding experience. At the same time, the oil pipe inserted into the frame needs to be exposed as short as possible for aesthetic reasons, but this creates a new problem, that is, when the vehicle turns, the oil pipe inserted inside will be pulled or twisted as the column rotates, which poses a great safety hazard and greatly reduces the life of the oil pipe.

[0059] Based on the above situation, an embodiment of the present invention provides an improved rotary oil-passing head structure and a bicycle, which will be described in detail below in conjunction with specific embodiments and drawings.

[0060] Example 1

[0061] Embodiment 1 of the present invention provides an improved rotary oil-passing vehicle head structure. Figure 1 It is a stereoscopic diagram of an improved rotary oil-passing vehicle head structure according to an exemplary embodiment. Figure 2 It is a cross-sectional view from a first perspective of an improved rotary oil-passing vehicle head structure shown according to an exemplary embodiment. Figure 3 FIG. 2 is a cross-sectional view of a second perspective of an improved rotary oil-passing vehicle head structure according to an exemplary embodiment. Figure 1-3 As shown, the improved rotary oil-passing vehicle head structure is used in conjunction with a bicycle frame and includes:

[0062] A head tube 50, which is arranged at the front part of the bicycle frame. In this embodiment, the lower part of the front part of the bicycle frame is used to assemble the front fork, the front wheel and the front brake lower pump;

[0063] The inner core member 10 at least comprises a first core portion 101, a first convex ring portion 102, a second core portion 103, which are arranged in sequence in the axial direction, and a first oil passage 100 and a second oil passage 104 which are axially opened inside the inner core member 10. A first annular groove 105 is opened on the annular outer wall of the first core portion 101.

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

[0065] Locking members, which are arranged at both ends of the head tube 50 to position the inner core member 10 axially after being inserted on the head tube 50 ;

[0066] Among them, the first ends of the first oil channel 100 and the second oil channel 104 both 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 is connected to the first annular groove 105, the second end of the first oil channel 100 penetrates the free end of the first core portion 101 and is connected to the second oil outlet, and the first oil outlet 403 is connected to the third oil pipe 703 through a movable oil plug, and the movable oil plug and part of the tube body of the third oil pipe 703 are hidden and assembled in the oil pipe chamber 504 opened on the side wall of the head pipe 50.

[0067] In the technical solution of the above embodiment, refer to the attached Figure 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 403 is connected to the front brake lower pump through the third oil pipe 703, and the second oil outlet is connected to the rear 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 cooperate with the quick connection. The oil pipe quick connector is a prior art, and those skilled in the art can obtain it from public channels. This exemplary embodiment uses the oil pipe quick connection structure disclosed in Chinese patent ZL202411928412.1, which will not be repeated here. The fourth oil pipe 704 runs in the bicycle frame and extends to connect the rear brake lower pump at a position close to the rear brake lower pump, so as to achieve a fully 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 approach the front brake lower pump at the front wheel of the bicycle frame, thereby avoiding the exposure of the third oil pipe 703 as short as possible, and achieving a hidden assembly;

[0068] When the bicycle turns, the handle drives the inner core member 10 and the front fork connected to the inner core member 10 to rotate in the head tube 50 to realize the steering function. The fourth oil pipe 704 inserted into the bicycle frame enters the frame in the head tube 50 of the bicycle to be fully hidden and assembled. The fourth oil pipe 704 can rotate with the steering and will not rotate with the steering to cause the oil pipe to be twisted and damaged. The rotating member 40 is movably mounted on the inner core member 10. Therefore, the third oil pipe 703 connected to the first oil outlet 403 on the rotating member 40 will not rotate with the steering to cause the oil pipe to be twisted and damaged. There is no need to reserve an exposed steering length for the oil pipe. The oil pipe can be hidden and assembled inside to improve the aesthetics of the vehicle and avoid exposed damage to the oil pipe.

[0069] In this embodiment, refer to the attached Figure 1-3 The rotating member 40 further comprises:

[0070] The step 402 is formed on the axial inner wall of the rotating sleeve 401 and corresponds to the assembly position of the first annular groove 105, and the first groove 402 and the second groove are formed in sequence on both sides of the axial inner wall of the rotating sleeve 401, wherein the first oil outlet 403 is opened at the middle position of the corresponding step;

[0071] Two rotary sealing rings 404 are respectively installed in the first grooves 402 and sleeved on the annular outer wall of the first core 101 to seal the oil passage of the first annular groove 105;

[0072] There are two ball bearings 405, which are respectively assembled in the second groove and whose inner rings are connected to the first core part 101 to maintain the rotational assembly of the rotating member 40 on the inner core member 10; wherein, after assembly, the facing sides of the two ball bearings 405 are both pressed and axially positioned for the rotating sealing ring 404. In this embodiment, the ball bearings 404 are deep groove ball bearings.

[0073] In this embodiment, continue to refer to the attached Figure 1-3 , the locking parts include:

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

[0075] The second locking member 60 is assembled on the second end of the head tube 50 and is threadedly assembled with 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 rotating member 40. The second locking member 60 includes:

[0076] The second locking sleeve 603 has a first end sleeved on the free end of the first core 101, and the first end pushes against the lower end of the rotating member 40 to cooperate with the first locking member 20 to axially position the rotating member 40, and the second end of the second locking sleeve 603 is integrally formed with a second annular convex edge 605 in a stepped shape;

[0077] The second nut member 604 is disposed in the assembly groove provided in the middle of the second locking sleeve 603 and is threadedly assembled with the free end of the first core portion 101 to push against the assembly position of the positioning rotating member 40;

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

[0079] The lower bowl assembly 606 is sleeved on the second end of the second locking sleeve 603 and its inner end abuts the second annular flange 605. The outer end thereof is integrally formed with a stepped third annular flange 607, which abuts the second end of the head tube 50 to form a buckling structure.

[0080] In the technical solution of the above embodiment, during assembly, the fourth oil pipe 704 is first passed through the bicycle frame, and then the first locking member 20 is installed at the upper end of the head pipe 50 and inserted into the first core portion 101 of the inner core member 10;

[0081] The lower bowl assembly 606 is inserted into the second locking sleeve 603, and the second locking sleeve 603 is put onto the first core portion 101 of the inner core member 10, and the locking block 608 is inserted from the lower part of the second locking sleeve 603 and inserted into the keyway formed between the second locking sleeve 603 and the first core portion 101 to radially position the second locking sleeve 603, and then, the second nut member 604 is screwed in from the lower part of the second locking sleeve 603 until the third annular flange 607 of the lower bowl assembly 606 abuts against the second end of the head tube 50 to form a buckling structure; it should be noted that the above-mentioned assembly steps of this embodiment are consistent with the overall assembly steps of the existing bicycle. When assembling the whole vehicle, there is no need to change the existing assembly habits of the workers, and it can be directly replaced, which is faster to assemble.

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

[0083] In summary, the improved rotating oil-passing head structure provided in Example 1 of the present invention realizes the hidden assembly of the oil pipe when the bicycle is loaded, and when the bicycle turns, the rotation of the inner core member 10 drives the front fork and the front wheel to rotate to realize the steering function, and the fourth oil pipe 704 inserted into the bicycle frame is fully hidden in the bicycle frame, and the fourth oil pipe 704 can rotate with the turning, and will not be twisted and damaged by the turning. The rotating member 40 is movably mounted on the inner core member 10, so the third oil pipe 703 connected to the first oil outlet 403 on the rotating member 40 will not be twisted and damaged by the turning. There is no need to reserve an exposed steering length for the third oil pipe 703, and the front brake pump can be directly connected as short as possible, thereby improving the aesthetics of the loading and avoiding damage to the exposed oil pipe.

[0084] Example 2

[0085] The embodiment of the present invention provides an improved rotary oil-passing vehicle head structure. Figure 4 It is a stereoscopic view of an improved rotary oil-passing vehicle head structure according to another exemplary embodiment. Figure 5It is a cross-sectional view from a first perspective of an improved rotary oil-passing vehicle head structure shown according to another exemplary embodiment. Figure 6 FIG. 2 is a cross-sectional view of a second perspective of an improved rotary oil-passing vehicle head structure according to another exemplary embodiment. Figure 4-6 As shown, the improved rotary oil-passing vehicle head structure is used in conjunction with a bicycle frame and includes:

[0086] A head tube 50, which is arranged at the front part of the bicycle frame. In this embodiment, the lower part of the front part 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 comprises a first core portion 101, a first convex ring portion 102, a second core portion 103, which are arranged in sequence in the axial direction, and a first oil passage 100 and a second oil passage 104 which are axially opened inside the inner core member 10. A first annular groove 105 is opened on the annular outer wall of the first core portion 101.

[0088] The rotating member 40 at least comprises a rotating sleeve 401, which is movably sleeved on a position of the second core portion 103 corresponding to the first annular groove 105, and a first oil outlet 403 radially connected to the first annular groove 105 is provided on a side wall thereof corresponding to the first annular groove 105; in this embodiment, the first annular groove 105 cooperates with the inner wall of the rotating sleeve 401 to form an annular oil passage;

[0089] Locking members, which are arranged at both ends of the head tube 50 to position the inner core member 10 axially after being inserted on the head tube 50 ;

[0090] Among them, the first ends of the first oil channel 100 and the second oil channel 104 both 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 is connected to the first annular groove 105, the second end of the first oil channel 100 penetrates the free end of the first core portion 101 and is connected to the second oil outlet, and the first oil outlet 403 is connected to the third oil pipe 703 through a movable oil plug, and the movable oil plug and part of the tube body of the third oil pipe 703 are hidden and assembled in the oil pipe chamber 504 opened on the side wall of the head pipe 50.

[0091] In the technical solution of the above embodiment, refer to the attached Figure 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 403 is connected to the front brake lower pump through the third oil pipe 703, and the second oil outlet is connected to the rear 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 cooperate with the quick connection. The oil pipe quick connector is a prior art, and those skilled in the art can obtain it from public channels. This exemplary embodiment uses the oil pipe quick connection structure disclosed in Chinese patent ZL202411928412.1, which will not be repeated here. The fourth oil pipe 704 runs in the bicycle frame and extends to connect the rear brake lower pump at a position close to the rear brake lower pump, so as to achieve a fully 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 approach the front brake lower pump at the front wheel of the bicycle frame, thereby avoiding the exposure of the third oil pipe 703 as short as possible, and achieving a hidden assembly;

[0092] When the bicycle turns, the handle drives the inner core member 10 and the front fork connected to the inner core member 10 to rotate in the head tube 50 to realize the steering function. The fourth oil pipe 704 inserted into the bicycle frame is installed in the head tube 50 of the bicycle in a fully hidden manner. The fourth oil pipe 704 can rotate with the steering, and will not rotate with the steering to cause the oil pipe to be twisted and damaged. The rotating member 40 is movably mounted on the inner core member 10. Therefore, the third oil pipe 703 connected to the first oil outlet 403 on the rotating member 40 will not rotate with the steering to cause the oil pipe to be twisted and damaged. There is no need to reserve a steering length for the oil pipe to be exposed. The oil pipe can be installed internally and hidden, which improves the appearance of the vehicle and avoids damage to the oil pipe.

[0093] In this 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, and 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 third oil pipe 703 through the first oil outlet 109, and hydraulic braking is achieved; when the rear brake upper pump brakes, the input oil is injected into the second oil inlet 205 through the second oil pipe 702, and 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 through the fourth oil pipe 704, and hydraulic braking is achieved.

[0094] In this embodiment, refer to the attached Figure 4-6 The rotating member 40 further comprises:

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

[0096] Two rotary sealing rings 404 are respectively installed in the first grooves 402 and sleeved on the annular outer wall of the first core 101 to seal the oil passage of the first annular groove 105;

[0097] There are two ball bearings 405, which are respectively assembled in the second groove and whose inner rings are connected to the first core part 101 to maintain the rotational assembly of the rotating member 40 on the inner core member 10; wherein, after assembly, the facing sides of the two ball bearings 405 are both pressed and axially positioned for the rotating sealing ring 404. In this embodiment, the ball bearings 404 are deep groove ball bearings.

[0098] In the technical solution of the above embodiment, the setting of the rotary sealing ring 405 effectively ensures the sealing of the annular oil circuit, prevents oil leakage and avoids dust entry. At the same time, the setting of the ball bearing 404 also reduces the rotational friction of the rotating part 40 on the inner core part 10, and the steering is smooth without damaging the oil circuit.

[0099] In this embodiment, continue to refer to the attached Figure 4-6 , the locking parts include:

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

[0101] The second locking member 60 is assembled on the second end of the head tube 50 and is threadedly assembled with 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 rotating member 40; in this embodiment, the second locking member 60 includes:

[0102] A first nut member 610 , the first nut member 610 is threadedly assembled on the first core portion 101 to cooperate with the first locking member 20 to axially position the rotating member 40 ;

[0103] A first locking sleeve 601, a first end of which is assembled on the free end of the first core 101, and a second end of which is integrally formed with a first annular flange 602 in a stepped shape;

[0104] A locking screw hole 609 is provided on the side wall of the first locking sleeve 601 to cooperate with a locking bolt assembled therein to fix the first locking sleeve 601 in an assembled position;

[0105] The buckle groove 600 is formed at the second end of the head tube 50 and cooperates 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 passed through the bicycle frame, and then the first locking member 20 is installed at the upper end of the head pipe 50 and inserted into the first core portion 101 of the inner core member 10;

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

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

[0109] Further, in this embodiment, a tensioning member 30 is provided at the upper end of the second core 103, and the tensioning member 30 is used to assemble and fix the second core 103 to the handlebar portion of the bicycle frame, as shown in the attached figure. Figure 1-3 The tensioner 30 can be an upper gland, and the lower end of the upper gland has a pressure edge portion, which is connected to the upper end of the second core 103 through an axially arranged gland bolt 304, so as to assemble and fix the handlebar portion of the bicycle frame to the second core 103. Specifically, the handlebar portion of the bicycle frame is fixedly assembled on the second core 103, and the first oil pipe 701 and the second oil pipe 702 can be hidden and assembled in the tube cavity of the handlebar portion to achieve hidden assembly of the oil pipes. Furthermore, the first oil pipe 701 and the second oil pipe 702 can also be passed through the handlebar, and extend near the brake handle or directly connected to the brake handle, so as to achieve full hidden routing of the oil pipes, which has a good protection effect on the oil pipes and improves the aesthetics of the frame installation.

[0110] In summary, the improved rotating oil-passing car head structure provided in Example 2 of the present invention realizes the hidden assembly of the oil pipe when the bicycle is loaded, and when the bicycle turns, the rotation of the inner core member 10 drives the front fork and the front wheel to rotate to realize the steering function. The fourth oil pipe 704 inserted into the bicycle frame is fully hidden in the bicycle frame, and the fourth oil pipe 704 can rotate with the turning, and will not be twisted and damaged by the turning. The rotating member 40 is movably mounted on the inner core member 10, so the third oil pipe 703 connected to the first oil outlet 403 on the rotating member 40 will not be twisted and damaged by the turning. There is no need to reserve an exposed steering length for the third oil pipe 703, and the front brake pump can be directly connected as short as possible, thereby improving the aesthetics of the loading and avoiding damage to the exposed oil pipe.

[0111] Example 3

[0112] Embodiment 3 of the present invention also provides an improved rotary oil-passing vehicle head structure, which is different from Embodiments 1-2 in that, with reference to the attached Figure 5-6 The second oil passage 104 is composed of a first oil section 1041 and a second oil section 1042 which are connected in a straight line. In this embodiment, the second oil passage 104 is opened from the free end of the second core 103, wherein the diameter of the first oil section 1041 is smaller than the diameter of the second oil section 1042, and a second oil seal plug 1044 is provided between the first oil section 1041 and the second oil section 1042, and a first oil seal plug 1043 is provided at the opening of the second oil section 1042;

[0113] The first oil section 1041 is connected to the first annular groove 105 and the second oil inlet, and the second oil section 1042 is connected to the first oil inlet and the first oil passage 100 via a relay.

[0114] In the technical solution of the above embodiment, in order to facilitate the drilling of the first oil passage 100 and the second oil passage 104 and smooth the oil passage, a segmented structure of the second oil passage 104 is designed, wherein the first oil section 1041 is blocked by the second oil seal bolt 1044, thereby realizing the connection between the first annular groove 105 and the second oil inlet, and the second oil section 1042 is blocked by the first oil seal bolt 1043 and the second oil seal bolt 1044, combined with the drilling of the first oil inlet, and connected to the first oil passage 100, forming a relay oil passage, thereby connecting the first oil inlet and the second oil outlet;

[0115] The difficulty of processing the oil passage on the inner core 10 is effectively reduced, ensuring that the oil passage is unobstructed.

[0116] Example 4

[0117] Embodiment 4 of the present invention also provides an improved rotary oil-passing vehicle head structure, which is different from Embodiments 1-3 in that, with reference to the attached Figure 2-3 The second core portion 103 includes a first core segment 1031 and a second core segment 1032 . The first core segment 1031 and the second core segment 1032 are axially arranged and fixed to the first core portion 101 through a plurality of long pins 1033 .

[0118] In the technical scheme of the above embodiment, in order to facilitate the drilling processing of the first oil channel 100 and the second oil channel 104 and the smoothness of the oil channel, a three-section structure of the inner core component 10 is designed, and the second core portion 103 is split into a first core segment 1031 and a second core segment 1032, and fixed to the first core portion 101 by a number of long pins 1033. Therefore, the holes and oil channels on the first core segment 1031, the second core segment 1032 and the first core portion 101 can be drilled separately, and the oil channels can be connected during assembly, which effectively reduces the difficulty of oil channel processing on the inner core component 10 and ensures smooth oil channels.

[0119] Further, in this embodiment, referring to the attached Figure 5-6The first convex ring portion 102 can also be processed separately and then fixedly assembled on the core shaft member 10 by means of threads or pins, so as to further reduce the processing difficulty and improve the processing efficiency.

[0120] Example 5

[0121] Embodiment 5 of the present invention provides a bicycle, comprising an improved rotating oil-passing front structure of any one of embodiments 1-4.

[0122] For other structures not described, refer to Examples 1-4.

[0123] In summary, the improved rotating oil-passing front structure and bicycle provided in Example 5 of the present invention realize the hidden assembly of the oil pipe when the bicycle is loaded, and when the bicycle turns, the rotation of the inner core member 10 drives the front fork and the front wheel to rotate to realize the steering function, and the fourth oil pipe 704 inserted into the bicycle frame is fully hidden in the bicycle frame, and the fourth oil pipe 704 can rotate with the turning, and will not be twisted and damaged by the turning. The rotating member 40 is movably mounted on the inner core member 10, so the third oil pipe 703 connected to the first oil outlet 403 on the rotating member 40 will not be twisted and damaged by the turning. There is no need to reserve an exposed steering length for the third oil pipe 703, and the front brake lower pump can be directly connected as short as possible, thereby improving the appearance of the loading and avoiding damage to the oil pipe. At the same time, through the optimization of the structure, the difficulty of processing the oil channel on the inner core member 10 is greatly reduced, ensuring smooth oil passage.

[0124] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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.

[0125] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An improved rotary oil-passing vehicle head structure, which is used in conjunction with a bicycle frame, characterized in that: Included are: A head pipe, which is arranged at the front part of the bicycle frame; The inner core component at least comprises a first core portion, a first convex ring portion, a second core portion, which are arranged in sequence in the axial direction, and a first oil passage and a second oil passage axially opened inside the inner core component, wherein a first annular groove is opened on the annular outer wall of the first core portion; A rotating member, comprising at least a rotating sleeve, wherein the rotating sleeve is movably sleeved on a position of the second core corresponding to the first annular groove, and a first oil outlet radially connected to the first annular groove is provided on a side wall thereof corresponding to the first annular groove; Locking parts, which are arranged at both ends of the head tube so that the inner core part can be axially positioned after being inserted on the head tube; Among them, the first ends of the first oil channel and the second oil channel both penetrate the side wall surface of the second core to form a first oil inlet and a second oil inlet respectively, and the second end of the second oil channel is connected to the first annular groove, and the second end of the first oil channel penetrates the free end of the first core and is connected to the second oil outlet.

2. The improved rotary oil-passing car head structure according to claim 1 is characterized in that: The rotating member also includes: A stepped step is formed on the axial inner wall of the rotating sleeve body and corresponds to the assembly position of the first annular groove, and the first groove and the second groove are sequentially formed on both sides of the axial inner wall of the rotating sleeve body, wherein the first oil outlet is opened at a middle position corresponding to the stepped step; Two rotary sealing rings are respectively installed in the first grooves and sleeved on the annular outer wall of the first core to seal the oil passage of the first annular groove; Two ball bearings are respectively installed in the second slots and their inner rings are connected to the first core to maintain the rotational assembly of the rotating member on the inner core.

3. The improved rotary oil-passing car head structure as claimed in claim 2 is characterized in that: The locking member comprises: A first locking member, which is sleeved on the second core portion and limited by the first convex 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 pipe and is threadedly assembled with the free end of the first core to cooperate with the first locking member to axially position the inner core member and the rotating member.

4. The improved rotary oil-passing car head structure as claimed in claim 3 is characterized in that: The second locking member comprises: a first nut member, wherein the first nut member is threadedly assembled on the first core portion to cooperate with the first locking member to axially position the rotating member; A first locking sleeve, a first end of which is assembled on the free end of the first core, and a second end of which is integrally formed with a first annular convex edge in a stepped shape; A locking screw hole is provided on the side wall of the first locking sleeve body to cooperate with a locking bolt assembled therein to fix the first locking sleeve body in an assembled position; A buckle groove is provided at the second end of the head tube and cooperates with the annular convex edge to form a buckle structure.

5. The improved rotary oil-passing car head structure as claimed in claim 3 is characterized in that: The second locking member comprises: A second locking sleeve, the first end of which is sleeved on the free end of the first core, the first end of which pushes against the lower end of the rotating member to cooperate with the first locking member to axially position the rotating member, and the second end of the second locking sleeve is integrally formed with a second annular convex edge in a stepped shape; A second nut member, which is arranged in the assembly groove opened in the middle of the second locking sleeve body and is threadedly assembled with the free end of the first core portion to push and position the assembly position of the rotating member; a locking block inserted into a keyway formed between the second locking sleeve and the first core portion to radially position the second locking sleeve; The lower bowl assembly is sleeved on the second end of the second locking sleeve and its inner end abuts the second annular flange. The outer end of the lower bowl assembly is integrally formed with a third annular flange in a stepped shape. The third annular flange abuts the second end of the head pipe to form a buckling structure.

6. The improved rotary oil-passing car head structure according to claim 1 is characterized in that: The second oil passage is composed of a first oil section and a second oil section which are connected in a straight line, and a second oil seal plug is provided between the first oil section and the second oil section, and a first oil seal plug is provided at the opening of the second oil section; The first oil section is connected to the first annular groove and the second oil inlet, and the second oil section is connected to the first oil inlet and the first oil passage via a relay.

7. The improved rotary oil-passing car head structure according to claim 1 is characterized in that: The second core portion includes a first core segment and a second core segment. The first core segment and the second core segment are axially arranged and fixed to the first core portion by a plurality of long pins.

8. The improved rotary oil-passing car head structure according to claim 1 is characterized in that: The first oil outlet is connected to a third oil pipe via a movable oil plug, and the movable oil plug and a part of the third oil pipe are concealed and assembled in an oil pipe chamber opened on the side wall of the head pipe.

9. The improved rotary oil-passing car head structure according to claim 1 is characterized in that: A tensioning piece is provided at the upper end of the oil set, and the tensioning piece is used to assemble and fix the second core part to the handlebar portion of the bicycle frame.

10. The improved rotary oil-passing car head structure according to claim 1 is characterized in that: The first oil inlet is connected to the front brake upper pump through a first oil pipe; the second oil inlet is connected to the rear brake upper pump through a second oil pipe; The first oil outlet is connected to the front brake pump via the third oil pipe, and the second oil outlet is connected to the rear brake pump via the fourth oil pipe.

11. A bicycle, characterized in that: The invention comprises the improved rotary oil-passing vehicle head structure as described in claims 1 to 10 above.

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