Hidden wire pulling oil pressure upper pump and wire pulling oil disc

Abstract

The utility model relates to a hidden type wire-pulling oil pressure upper pump and a wire-pulling oil saucer, the hidden type wire-pulling oil pressure upper pump is matched with a bicycle frame for use, the hidden type wire-pulling oil pressure upper pump comprises an upper pump body, a lower pump body and a wire-pulling oil saucer, the upper pump body is internally provided with two oil cylinder cavities, the opening ends of the two oil cylinder cavities are respectively positioned on two opposite sides of the upper pump body, and the two oil cylinder cavities are arranged in a staggered manner in the vertical direction; the two oil outlets are respectively and radially communicated with the two oil cylinder cavities; the wiring groove is formed in the upper part of the outer wall of the upper pump body; the two wire pulling oil driving pieces are arranged on the two opposite sides of the upper pump body respectively, and each wire pulling oil driving piece comprises a driving part and a piston part which are movably connected; the first end of the driving part is horizontally and movably assembled on the side wall of the upper pump body, the second end of the driving part is connected with the first end of the pull wire, and the pull wire movably penetrates through the wiring groove. The bicycle handlebar stem can be fully matched with a handlebar stem structure of a bicycle on the market, and the appearance of the bicycle is kept attractive; the exposed length of the stay wire is shortened, and an effective protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a hidden type wire-pull oil pressure upper pump and a wire-pull oil disc. Background Art

[0002] Cable-pulled hydraulic disc brake is a new type of disc brake on the market that combines cable-pulled disc brake and hydraulic disc brake. It has the advantages of cable-pulled disc brake and hydraulic disc brake, with lower cost and better braking experience.

[0003] In the prior art, the brake lower pump is generally improved by setting a wire-pull-turn oil pressure structure at the lower pump to achieve this purpose. However, the brake lower pump has the limitations of greatly increasing the volume due to the increase in structure, limited assembly space, unchanged wire length, and more required braking force. Therefore, a wire-pull oil disc structure with a wire-pull-turn oil pressure structure set at the handlebar has been gradually introduced on the market. The wire is connected to the brake handle and the oil pipe is connected to the lower pump. However, since this structure is set at the front end of the positive direction of the bicycle frame, it is easy to be damaged on the one hand, and the wire will be exposed on the frame on the other hand, the wire protection is weak and affects the appearance of the vehicle installation.

[0004] For this purpose, we propose a concealed line-pull oil pressure pump and a line-pull oil disc. Utility Model Content

[0005] The present application provides a hidden cable-pull oil pressure upper pump and cable-pull oil disc, so as to at least solve the problem that in the prior art, the cable-pull oil disc structure is arranged at the handlebar, which is easy to be damaged on the one hand, and on the other hand, the cable will be exposed on the frame, the cable protection is weak and affects the appearance of the vehicle installation.

[0006] In a first aspect, the present application provides a hidden type wire-pull hydraulic pump, which is used in conjunction with a bicycle frame, comprising:

[0007] The upper pump body is provided with: two oil cylinder chambers whose opening ends are respectively located on opposite sides of the upper pump body and are staggered in the vertical direction; two oil outlets respectively radially connected to the two oil cylinder chambers; and a wiring groove located on the upper part of the outer wall of the upper pump body;

[0008] The wire-pulling oil driving parts are two in number and are respectively arranged on the opposite sides of the upper pump body, and include: a movably connected driving part and a piston part, the piston part is movably assembled in the oil cylinder cavity; the first end of the driving part is horizontally movably assembled on the side wall of the upper pump body, and the second end thereof is connected to the first end of the pulling wire, and the pulling wire is movably arranged in the wiring groove;

[0009] The wing plate members, which are two in number, are symmetrically arranged at the front sides of both ends of the upper pump body to shield the two driving parts from the front side.

[0010] Optionally, pin-through portions are provided on both inner walls of the wiring groove, and the two pin-through portions are staggered in the front-to-back direction to respectively guide the pulling paths of the two pulling wires in the wiring groove.

[0011] Optionally, the wing plate is provided with:

[0012] A positioning bolt, which is horizontally arranged and assembled on the side wall of the wing plate member to fix the wing plate member to the side wall edge of the upper pump body;

[0013] A rotation limit buckle, which is fixed to the upper / lower side of the rear wall of the wing plate and has an elastic snap-in;

[0014] The turning shaft is fixed to the upper / lower side of the side wall of the upper pump body at a position corresponding to the rotation limit buckle. The rotation limit buckle is movably connected to the turning shaft through the elastic bayonet to movably turn the wing plate.

[0015] Optionally, a connecting portion is provided at the front upper end of the upper pump body, and a connecting piece is assembled on the connecting portion by bolts;

[0016] The bicycle frame includes an integrated handlebar tube, the connecting piece is assembled with the middle part of the lower end of the integrated handlebar tube by bolts to fix the upper pump body on the bicycle frame, and part of the pull line is hidden and penetrated in the integrated handlebar tube.

[0017] Optionally, a connecting portion is provided at the front upper end of the upper pump body, and a connecting piece is assembled on the connecting portion by bolts;

[0018] The bicycle frame includes a split stem and a split handlebar cross tube. The connecting piece is assembled with the lower front end of the split stem by bolts to fix the upper pump body on the bicycle frame, and part of the pull line is hidden and inserted into the split handlebar cross tube.

[0019] Optionally, the piston portion comprises:

[0020] A hydraulic piston is movably mounted in the oil cylinder chamber to drive the oil in the oil cylinder chamber to move;

[0021] An elastic member, disposed in the oil cylinder cavity and connected to the first end of the oil pressure piston to provide an elastic restoring force to the oil pressure piston;

[0022] A piston rod, a first end of which extends into the oil cylinder cavity and is movably assembled with the second end of the oil pressure piston;

[0023] The oil cylinder sealing member is arranged at the open end of the oil cylinder cavity to seal the open end after the oil pressure piston is assembled into the oil cylinder cavity.

[0024] Optionally, the driving unit includes:

[0025] A rotating base, which is fixed to the side wall of the upper pump body by bolts;

[0026] A traction arm, a first end of which is movably mounted on the rotating base via a rotating pin, and a middle portion of which is movably connected to the second end of the piston rod via a movable pin;

[0027] A wire pressing plate is installed on the second end of the traction arm through a wire pressing screw to fix the first end of the pull wire.

[0028] Optionally, the oil cylinder sealing member comprises:

[0029] A sealing ring, which is sleeved on a section of the piston rod located in the oil cylinder cavity and abuts against an annular boss formed on the inner wall of the oil cylinder cavity;

[0030] The split pin piece is located on the outer side of the sealing ring and is elastically pinned to a pin groove formed on the inner wall of the oil cylinder cavity to locate the axial assembly position of the sealing ring.

[0031] Optionally, the upper pump body is further provided with an oil pool mechanism for adjusting the oil pressure in the two oil cylinder chambers, and the oil pool mechanism includes:

[0032] There are two oil pool cavities, the opening ends of which are respectively located on opposite sides of the upper pump body and staggered in the vertical direction, and the opening ends of which are oil filling ports;

[0033] There are two oil replenishing ports, which are connected to the two oil pool cavities respectively to inject oil into the oil pool cavities;

[0034] There are two oil pool holes, which are connected to the two oil pool chambers and the two oil cylinder chambers respectively, and the oil pool hole is coaxially arranged with the oil replenishing port;

[0035] An oil pool screw cap, threadedly assembled on the oil filling port to close the oil filling port;

[0036] The breathing pad is used to expand and contract in accordance with the change of oil pressure so as to adjust the oil pressure in the cylinder cavity during braking.

[0037] In a second aspect, the present application provides a line-pull oil disc having the hidden line-pull oil pressure upper pump described in the first aspect, and

[0038] Brake handles, two in number, are respectively mounted on the two ends of the handlebar and are respectively connected to the second ends of the two pull wires so as to pull the wire-pulling oil drive member to move when the brake handle moves;

[0039] There are two oil pipes, and the first ends of the oil pipes are respectively connected to the two oil outlets;

[0040] There are two brake lower pumps, which are respectively mounted on the front / rear wheels of the bicycle frame and arranged in conjunction with the disc, and the brake lower pumps are respectively connected to the second ends of the two oil pipes to apply oil pressure to the disc.

[0041] Compared with the related art, the hidden wire-pull oil pressure pump and wire-pull oil disc provided by the present application have at least the following technical effects:

[0042] By assembling it on the handlebar of a bicycle frame, it can be fully adapted to the split and integrated handlebar structures of bicycles on the market, and effectively cover the structural parts to maintain the beautiful appearance of the vehicle. A simple and low-cost wire-pull brake handle is used to replace the brake upper pump of the hydraulic disc brake, and a pull wire is used for length connection, which shortens the length of the oil pipe and greatly reduces the cost and maintenance frequency. At the same time, the pull wire is partially hidden in the wiring groove of the upper pump body, and partially inserted into the split handlebar cross tube, and then inserted near the brake handle to connect with the brake handle, shortening the exposed length of the pull wire and playing an effective protective role. The wing panel can play a positive protective role and maintain the beautiful appearance of the vehicle. During maintenance, the wing panel can be flipped along the flip axis for quick maintenance without dismantling the vehicle.

[0043] 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

[0044] In order to more clearly illustrate the specific implementation methods of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 A three-dimensional schematic diagram of a hidden wire-pull oil pressure upper pump according to an exemplary embodiment Figure 1 .

[0046] Figure 2 A three-dimensional schematic diagram of a hidden wire-pull oil pressure upper pump according to an exemplary embodiment Figure 2 .

[0047] Figure 3 It is a schematic diagram of the structure of an upper pump body according to an exemplary embodiment.

[0048] Figure 4 It is a formal structural diagram showing a hidden type line-pull oil pressure upper pump according to an exemplary embodiment.

[0049] Figure 5 is based on Figure 4Isometric cross-section of the AA structure.

[0050] Figure 6 is based on Figure 4 Isometric cross-section of the BB structure.

[0051] Figure 7 It is a schematic diagram of the combined structure of a wire-pull oil drive component and an oil pool mechanism according to an exemplary embodiment.

[0052] Figure 8 The figure is an exploded view of a hidden type wire-pull oil pressure upper pump assembly according to an exemplary embodiment.

[0053] Fig. 9 is an assembly diagram of a hidden type wire-pull oil pressure upper pump according to another exemplary embodiment.

[0054] Fig.10 is an assembly diagram of a hidden type wire-pull oil pressure upper pump according to a third exemplary embodiment.

[0055] Description of reference numerals: upper pump body 10: oil cylinder chamber 101, oil outlet 102, wiring groove 103, pin-through portion 104, connecting portion 105;

[0056] Wing plate 20: positioning bolt 201, rotation limit buckle 202, turning shaft 203;

[0057] Wire pulling oil drive component 30: rotating base 301, rotating pin 302, pulling arm 303, movable pin 304, piston rod 305, hydraulic piston 306, oil cylinder sealing component 307, wire pressing plate 308, wire pressing screw 309;

[0058] Pull wire 40;

[0059] The oil pool mechanism 50 includes an oil pool cavity 501, an oil pool hole 502, an oil pool screw cover 503, and a breathing pad 504;

[0060] Oil filling port 60 , connecting piece 70 , integrated handlebar tube 80 , split stem 90 . DETAILED DESCRIPTION

[0061] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0062] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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.

[0064] In the related art, the brake lower pump is generally improved by setting a wire-pull-turn oil pressure structure at the lower pump to achieve this purpose. However, the brake lower pump has the limitations of greatly increasing the volume due to the increase in structure, limited assembly space, unchanged wire length, and more required braking force. Therefore, a wire-pull oil disc structure with a wire-pull-turn oil pressure structure set at the handlebar has been gradually introduced on the market. The wire is connected to the brake handle and the oil pipe is connected to the lower pump. However, since this structure is set at the front end of the positive direction of the bicycle frame, it is easy to be damaged on the one hand, and the wire will be exposed on the frame on the other hand. The wire protection is weak and affects the appearance of the vehicle installation.

[0065] Based on the above situation, the embodiment of the utility model provides a hidden wire-pull oil pressure pump and a wire-pull oil disc, which are described in detail below in conjunction with specific embodiments and drawings.

[0066] Example 1

[0067] The embodiment of the utility model provides a hidden wire-pull hydraulic pump. The hidden wire-pull hydraulic pump is used with a bicycle frame, wherein the handlebar portion of the specific bicycle frame is an integrated handlebar cross tube 80. Figure 8 FIG. 1 is an exploded view of a hidden type line-pull hydraulic upper pump assembly according to an exemplary embodiment. Figure 8A connecting portion 105 is provided at the upper front end of the upper pump body 10, and a connecting piece 70 is assembled on the connecting portion 105 by bolts; the bicycle frame includes an integrated handlebar tube 80, and the connecting piece 70 is assembled with the middle part of the lower end of the integrated handlebar tube 80 by bolts to fix the upper pump body 10 on the bicycle frame. It can be understood that the assembly of the connecting piece 70 can be directly adapted to the original hole position on the integrated handlebar tube 80, which is convenient to assemble and has good adaptability, and part of the line of the pull wire 40 is hidden and passed through the integrated handlebar tube 80.

[0068] In the technical solution of the above embodiment, refer to the attached Figure 8 The upper pump body 10 is assembled at the lower part of the integrated handlebar cross tube 80, which ensures convenient assembly, and the hidden cable-pull oil pressure upper pump is set here, which can shorten the length of the cable 40 in both directions, and make the cable 40 partially hidden in the wiring groove 103 of the upper pump body 10, and partially penetrate into the integrated handlebar cross tube 80, and then penetrate from near the brake handle to connect with the brake handle, thereby shortening the exposed length of the cable 40 and playing an effective protective role.

[0069] Fig.10 is an assembly diagram of a hidden type line-pull oil pressure upper pump according to a third exemplary embodiment. Fig.10 A hole can also be opened at the position corresponding to the upper pump body 10 at the lower part of the integrated handlebar cross tube 80. Correspondingly, a vertical bolt hole is opened at the lower part of the upper pump body 10, and then the upper pump body 10 is fixed to the opening assembly position of the integrated handlebar cross tube 80 through the bolt hole with the help of vertical bolts. In this way, the assembly of the upper pump body 10 can be completed without the connecting piece 70, which saves parts and is suitable for assembly by the manufacturer during the bicycle production or assembly stage, thereby reducing production costs.

[0070] Figure 1 A three-dimensional schematic diagram of a hidden wire-pull oil pressure upper pump according to an exemplary embodiment Figure 1 . Figure 2 A three-dimensional schematic diagram of a hidden wire-pull oil pressure upper pump according to an exemplary embodiment Figure 2 . Figure 3 It is a schematic diagram of the structure of an upper pump body according to an exemplary embodiment. Figure 4 1 is a schematic diagram showing the structure of a hidden type line-pull hydraulic pump according to an exemplary embodiment. Figure 1-4 , the hidden line pull oil pressure pump includes:

[0071] The upper pump body 10 is provided with: two oil cylinder chambers 101 whose opening ends are located at opposite sides of the upper pump body 10 and are staggered in the vertical direction; two oil outlets 102 radially connected to the two oil cylinder chambers 101; and a wiring groove 103 located at the upper part of the outer wall of the upper pump body 10;

[0072] The wire-pull oil drive parts 30 are two in number and are respectively arranged on opposite sides of the upper pump body 10, and include: a movably connected driving part and a piston part, the piston part is movably assembled in the oil cylinder cavity 101; the first end of the driving part is horizontally movably assembled on the side wall of the upper pump body, and the second end thereof is connected to the first end of the pull wire 40, and the pull wire 40 is movably arranged in the wiring groove 103;

[0073] On both sides of the inner wall of the wiring groove 103, there are pins 104, and the two pins are staggered in the front-to-back direction to guide the pulling paths of the two pull wires 40 in the wiring groove 103 respectively;

[0074] In the technical solution of the above embodiment, refer to the attached Figure 1-4 The pin-through portion 104 on the first side and the pin-through portion 104 on the second side are located on the same axis, and the pin-through portion 104 on the second side and the pin-through portion 104 on the first side are located on the same axis, so the two pull wires 40 are in a parallel state in the wiring groove 103 and are hidden by the wiring groove 103. The pin-through portion 104 plays a role in guiding the pulling path of the pull wire 40, so that the pull wire 40 is always located in the wiring groove 103 for pulling and movement and avoids the pull wire 40 from being exposed;

[0075] See attached Figure 1-4 The wing plate members 20 are two in number and are symmetrically arranged at the front sides of both ends of the upper pump body 10 to shield the two driving parts from the front side. In this embodiment, the wing plate member 20 is provided with: a positioning bolt 201, which is horizontally arranged and assembled on the side wall of the wing plate member 20 to fix the wing plate member 20 to the side wall edge of the upper pump body 10; a rotation limit buckle 202, which is fixed to the upper / lower side position of the rear wall of the wing plate member 20 and has an elastic bayonet; a flip shaft 203, which is fixed to the upper / lower side of the side wall of the upper pump body 10 corresponding to the position of the rotation limit buckle 202, and the rotation limit buckle 202 is movably connected to the flip shaft 203 through the elastic bayonet to movably flip the wing plate member 20.

[0076] In the technical solution of the above embodiment, the wing plate 20 is symmetrically installed on the front sides of both ends of the upper pump body 10, which can effectively block the driving part of the wire pull oil drive 30 and part of the pull wire 40, on the one hand, playing a positive protection role, on the other hand, maintaining the beauty of the loading.

[0077] Furthermore, when the hidden wire-pull oil pressure upper pump is inspected and repaired, the positioning bolt 201 can be removed, and the rotation limit buckle 202 can be maintained connected to the flip axis 203, so that the wing panel 20 can be flipped along the flip axis 203. At this time, the originally obscured parts can be quickly inspected and repaired intuitively from the forward direction without dismantling the vehicle.

[0078] In this embodiment, Figure 4 It is a formal structural diagram showing a hidden type line-pull oil pressure upper pump according to an exemplary embodiment. Figure 5 is based on Figure 4Isometric cross-section of the AA structure. Figure 6 is based on Figure 4 The cross-sectional isometric diagram of the BB structure is shown in the attached figure. Figure 1-6 The piston part includes: a hydraulic piston 306, which is movably assembled in the cylinder cavity 101 to drive the oil in the cylinder cavity 101 to move; an elastic member, which is arranged in the cylinder cavity 101 and connected to the first end of the hydraulic piston 306 to provide an elastic reset force for the hydraulic piston 306; a piston rod 305, whose first end extends into the cylinder cavity 101 and is movably assembled with the second end of the hydraulic piston 306; a cylinder closure member 307, which is arranged at the open end of the cylinder cavity 101 to close the open end after the hydraulic piston 306 is assembled into the cylinder cavity 101; wherein the cylinder closure member 307 includes: a sealing ring, which is sleeved on a section of the piston rod located in the cylinder cavity and abuts and is positioned on an annular boss formed on the inner wall of the cylinder cavity; an open pin sheet, which is located on the outer side of the sealing ring and is elastically pinned to a pin groove formed on the inner wall of the cylinder cavity to locate the axial assembly position of the sealing ring.

[0079] In this embodiment, Figure 7 FIG. 1 is a schematic diagram of a combined structure of a wire-pull oil drive component and an oil pool mechanism according to an exemplary embodiment. Figure 2-7 The driving part includes: a rotating base 301, which is fixed to the side wall of the upper pump body 10 by bolts; a traction arm 303, a first end of which is movably assembled on the rotating base 301 through a rotating pin 302, and a middle part of which is movably connected to the second end of the piston rod 3045 through a movable pin 304; a wire pressing plate 308, which is installed on the second end of the traction arm 303 through a wire pressing screw 309 to fix the first end of the pull wire 40.

[0080] In the technical scheme of the above-mentioned embodiment, when installed on the vehicle, it is used in conjunction with the brake handle, the oil pipe and the brake lower pump. Specifically, there are two brake handles, which are respectively assembled at the two ends of the handlebar and respectively connected to the second ends of the two pull wires 40 so that the pulling wires pull the oil drive component 30 to move when the brake handle moves; there are two oil pipes, whose first ends are respectively connected to the two oil outlets 102, specifically, the oil pipes are connected to the oil outlets 102 through living bolts; there are two brake lower pumps, which are respectively assembled at the front / rear wheels of the bicycle frame and are arranged in conjunction with the disc, and the brake lower pumps are respectively connected to the second ends of the two oil pipes to apply oil pressure to the disc.

[0081] See attached Figure 1-7When the brake handle on one side is squeezed, one of the pull wires 40 on one side is pulled, pulling the traction arm 303 to rotate along the rotating pin 302, thereby pressing the piston rod 305 to move forward in the cylinder cavity 101 and drive the oil in the oil pool cavity to be output through one of the oil outlets 102 through the hydraulic piston 306, and then enter the brake pump at the front / rear wheel through the oil pipe. The brake pump clamps the disc of the front / rear wheel for hydraulic braking, the oil circuit is smooth, and the braking is stable.

[0082] In this embodiment, Figure 4 It is a formal structural diagram showing a hidden type line-pull oil pressure upper pump according to an exemplary embodiment. Figure 5 is based on Figure 4 Isometric cross-section of the AA structure. Figure 6 is based on Figure 4 The cross-sectional isometric diagram of the BB structure is shown in the attached figure. Figure 4-6 The upper pump body 10 is also provided with an oil pool mechanism 50 for adjusting the oil pressure in the two cylinder chambers 101. The oil pool mechanism 50 includes: two oil pool chambers 501, whose opening ends are respectively located on the opposite sides of the upper pump body 10 and are staggered in the vertical direction, and whose opening ends are oil filling ports; two oil replenishing ports 60, which are separately connected to the two oil pool chambers 101 to inject oil into the oil pool chambers 101; two oil pool holes 502, which are separately connected to the two oil pool chambers 501 and the two cylinder chambers 101, and the oil pool hole 502 is coaxially arranged with the oil replenishing port 60 for easy processing and drilling; an oil pool screw cover 503, which is threadedly assembled on the oil filling port to close the oil filling port; a breathing pad 504, which is used to expand and contract with the change of oil pressure to adjust the oil pressure in the cylinder chamber 101 during braking. Specifically, the breathing pad 304 is U-shaped as a whole, one end of which is open and sleeved on the open end of the oil filling port, and the other end extends into the oil pool cavity 301 to form a sealed continuous cavity that is elastically compressed as the oil pressure increases and elastically restored as the oil pressure decreases.

[0083] In the technical solution of the above embodiment, when braking, the oil conducts the heat of the brake pad and expands due to the heat. The expanded oil enters the two oil pool cavities 501 respectively through the oil pool holes 502 and compresses the breathing pad 504. When the oil temperature drops, it automatically flows back to the cylinder cavity 101 with reduced pressure. In this way, the risk of disc locking is effectively avoided.

[0084] In summary, the hidden wire-pull hydraulic upper pump provided by the embodiment of the utility model can be fully adapted to the integrated handlebar cross tube 80 of bicycles on the market by being assembled at the handlebar cross tube of the bicycle frame, and can effectively cover the structural parts to maintain the beautiful appearance of the vehicle; and a simple and low-cost wire-pull brake handle is used to replace the brake upper pump of the hydraulic disc brake, and the wire 40 is used for length connection, which shortens the length of the oil pipe and greatly reduces the cost and maintenance frequency; at the same time, the wire 40 is partially hidden in the wiring groove 103 of the upper pump body 10, and partially penetrated into the split body The handlebar 20 is inserted into the horizontal tube 901, and then passes through the vicinity of the brake handle to connect with the brake handle, thereby shortening the exposed length of the pull wire 40 and playing an effective protective role; the wing panel 20 can effectively block the driving part of the oil-pull drive component 30 and part of the pull wire 40, thereby playing a positive protective role and maintaining the beauty of the vehicle installation, and during maintenance, the positioning bolt 201 can be removed, and the connection between the rotation limit buckle 202 and the flip axis 203 can be maintained, so that the wing panel 20 can be flipped along the flip axis 203, and at this time, the originally blocked parts can be quickly and intuitively repaired from the positive direction without dismantling the vehicle.

[0085] Example 2

[0086] The embodiment of the utility model provides a hidden wire-pull hydraulic pump. The hidden wire-pull hydraulic pump is used with a bicycle frame, wherein the stem part of the specific bicycle frame is a split stem 90. Fig. 9 FIG. 1 is an assembly diagram of a hidden type line-pull oil pressure upper pump according to another exemplary embodiment. Fig. 9 A connecting portion 105 is provided at the upper end of the front side of the upper pump body 10, and a connecting piece 70 is assembled on the connecting portion 105 by bolts; the bicycle frame includes a split stem 90 and a split handlebar tube 901, the split handlebar tube 901 is penetrated and assembled on the front side of the upper end of the split stem 90, and the connecting piece 70 is assembled with the lower front end of the split stem 90 by bolts to fix the upper pump body 10 on the bicycle frame. It can be understood that the assembly of the connecting piece 70 can be directly adapted to the original fixing hole position on the split stem 90, which is convenient to assemble and has good adaptability, and part of the line of the pull wire 40 is hidden and penetrated in the split handlebar tube 901.

[0087] In the technical solution of the above embodiment, refer to the attached Fig. 9 The upper pump body 10 is assembled at the lower part of the split handlebar 90, which ensures convenient assembly, and the hidden cable-pull oil pressure upper pump is set here, which can shorten the length of the cable 40 in both directions, and make the cable 40 partially hidden in the wiring groove 103 of the upper pump body 10, and partially penetrate into the split handlebar cross tube 901, and then penetrate from near the brake handle to connect with the brake handle, thereby shortening the exposed length of the cable 40 and playing an effective protective role.

[0088] In summary, the hidden cable-pull hydraulic upper pump provided by the embodiment of the utility model can be fully adapted to the split stem 90 of bicycles on the market through assembly at the handlebar cross tube of the bicycle frame, and can effectively cover the structural parts to maintain the beautiful appearance of the vehicle; and a simple and low-cost cable-pull brake handle is used to replace the brake upper pump of the hydraulic disc brake, and a pull wire 40 is used for length connection, which shortens the length of the oil pipe and greatly reduces the cost and maintenance frequency; at the same time, the pull wire 40 is partially hidden in the wiring groove 103 of the upper pump body 10, and partially penetrates into the split handlebar cross tube 901, and then penetrates from near the brake handle to connect with the brake handle, thereby shortening the exposed length of the pull wire 40 and playing an effective protective role.

[0089] Example 3

[0090] The embodiment of the utility model provides a line-pull oil disc, which has a hidden line-pull oil pressure pump according to any one of the above embodiments 1-2, and

[0091] Brake handles, two in number, are respectively mounted at both ends of the handlebar and are respectively connected to the second ends of the two pull wires 40 so as to pull the oil drive member 30 to move when the brake handle moves;

[0092] There are two oil pipes, and the first ends thereof are respectively connected to the two oil outlets; it can be understood that the oil pipe can also extend from the handlebar into the bicycle frame to reduce the exposed length and play an effective protective role.

[0093] There are two brake lower pumps, which are respectively mounted on the front / rear wheels of the bicycle frame and arranged in conjunction with the disc, and the brake lower pumps are respectively connected to the second ends of the two oil pipes to apply oil pressure to the disc.

[0094] In summary, the hidden cable-pull hydraulic upper pump and hydraulic disc brake provided by the embodiment of the utility model can be fully adapted to the split and integrated handlebar structures of bicycles on the market by being assembled at the handlebar of a bicycle frame, and can effectively cover structural parts to maintain the beautiful appearance of the vehicle; and a simple and low-cost cable-pull brake handle is used to replace the brake upper pump of the hydraulic disc brake, and a pull wire 40 is used for length connection, which shortens the length of the oil pipe and greatly reduces the cost and maintenance frequency; at the same time, the pull wire 40 is partially hidden in the wiring groove 103 of the upper pump body 10, and partially penetrates into the split handlebar cross tube 901, and then penetrates from near the brake handle to connect with the brake handle, thereby shortening the exposed length of the pull wire 40 and playing an effective protective role.

[0095] Furthermore, it can also meet the needs of replacing existing road bike hydraulic disc brakes when assembled on existing frames. On the one hand, it reduces the installation cost, and on the other hand, the manufacturer does not need to redesign the frame and invest in improving production equipment, thereby reducing production costs.

[0096] 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.

[0097] 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 utility model 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. A hidden line-pull oil pressure pump, characterized in that: The bicycle is used in conjunction with a bicycle frame, comprising: The upper pump body is provided with: two oil cylinder chambers whose opening ends are respectively located on opposite sides of the upper pump body and are staggered in the vertical direction; two oil outlets respectively radially connected to the two oil cylinder chambers; and a wiring groove located on the upper part of the outer wall of the upper pump body; The wire-pulling oil driving parts are two in number and are respectively arranged on the opposite sides of the upper pump body, and include: a movably connected driving part and a piston part, the piston part is movably assembled in the oil cylinder cavity; the first end of the driving part is horizontally movably assembled on the side wall of the upper pump body, and the second end thereof is connected to the first end of the pulling wire, and the pulling wire is movably arranged in the wiring groove; The wing plate members, which are two in number, are symmetrically arranged at the front sides of both ends of the upper pump body to shield the two driving parts from the front side.

2. The hidden type line-pull oil pressure pump according to claim 1, characterized in that: Pins are provided on both inner walls of the wiring groove, and the two pins are staggered in the front-to-back direction to guide the pulling paths of the two pull wires in the wiring groove respectively.

3. The hidden type line-pull oil pressure pump according to claim 1, characterized in that: The wing plate is provided with: A positioning bolt, which is horizontally arranged and assembled on the side wall of the wing plate member to fix the wing plate member to the side wall edge of the upper pump body; A rotation limit buckle, which is fixed to the upper / lower side of the rear wall of the wing plate and has an elastic snap-in; The turning shaft is fixed to the upper / lower side of the side wall of the upper pump body at a position corresponding to the rotation limit buckle. The rotation limit buckle is movably connected to the turning shaft through the elastic bayonet to movably turn the wing plate.

4. The hidden type line-pull oil pressure pump according to claim 1, characterized in that: A connecting portion is provided at the front upper end of the upper pump body, and a connecting piece is assembled on the connecting portion by bolts; The bicycle frame includes an integrated handlebar tube, the connecting piece is assembled with the middle part of the lower end of the integrated handlebar tube by bolts to fix the upper pump body on the bicycle frame, and part of the pull line is hidden and penetrated in the integrated handlebar tube.

5. The hidden type line-pull oil pressure pump according to claim 1, characterized in that: A connecting portion is provided at the front upper end of the upper pump body, and a connecting piece is assembled on the connecting portion by bolts; The bicycle frame includes a split stem and a split handlebar cross tube. The connecting piece is assembled with the lower front end of the split stem by bolts to fix the upper pump body on the bicycle frame, and part of the pull line is hidden and inserted into the split handlebar cross tube.

6. The hidden type line-pull oil pressure pump according to claim 1, characterized in that: The piston portion comprises: A hydraulic piston is movably mounted in the oil cylinder chamber to drive the oil in the oil cylinder chamber to move; An elastic member, disposed in the oil cylinder cavity and connected to the first end of the oil pressure piston to provide an elastic restoring force to the oil pressure piston; A piston rod, a first end of which extends into the oil cylinder cavity and is movably assembled with the second end of the oil pressure piston; The oil cylinder sealing member is arranged at the open end of the oil cylinder cavity to seal the open end after the oil pressure piston is assembled into the oil cylinder cavity.

7. The hidden type line-pull oil pressure pump according to claim 6, characterized in that: The driving unit comprises: A rotating base, which is fixed to the side wall of the upper pump body by bolts; A traction arm, a first end of which is movably mounted on the rotating base via a rotating pin, and a middle portion of which is movably connected to the second end of the piston rod via a movable pin; A wire pressing plate is installed on the second end of the traction arm through a wire pressing screw to fix the first end of the pull wire.

8. The hidden type line-pull oil pressure pump according to claim 6, characterized in that: The oil cylinder sealing member comprises: A sealing ring, which is sleeved on a section of the piston rod located in the oil cylinder cavity and abuts against an annular boss formed on the inner wall of the oil cylinder cavity; The split pin piece is located on the outer side of the sealing ring and is elastically pinned to a pin groove formed on the inner wall of the oil cylinder cavity to locate the axial assembly position of the sealing ring.

9. The hidden type line-pull oil pressure pump according to claim 1, characterized in that: The upper pump body is also provided with an oil pool mechanism for adjusting the oil pressure in the two oil cylinder chambers, and the oil pool mechanism includes: There are two oil pool cavities, the opening ends of which are respectively located on opposite sides of the upper pump body and staggered in the vertical direction, and the opening ends of which are oil filling ports; There are two oil replenishing ports, which are connected to the two oil pool cavities respectively to inject oil into the oil pool cavities; There are two oil pool holes, which are connected to the two oil pool chambers and the two oil cylinder chambers respectively, and the oil pool hole is coaxially arranged with the oil replenishing port; An oil pool screw cap, threadedly assembled on the oil filling port to close the oil filling port; The breathing pad is used to expand and contract in accordance with the change of oil pressure so as to adjust the oil pressure in the cylinder cavity during braking.

10. A wire-pulled oil disc, characterized in that: A concealed wire-pull oil pressure pump according to any one of claims 1 to 9, and Brake handles, two in number, are respectively mounted on the two ends of the handlebar and are respectively connected to the second ends of the two pull wires so as to pull the wire-pulling oil drive member to move when the brake handle moves; There are two oil pipes, and the first ends of the oil pipes are respectively connected to the two oil outlets; There are two brake lower pumps, which are respectively mounted on the front / rear wheels of the bicycle frame and arranged in conjunction with the disc, and the brake lower pumps are respectively connected to the second ends of the two oil pipes to apply oil pressure to the disc.

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