Oil disc upper pump without locking clamping ring and hidden oil pipe

Abstract

The utility model discloses an oil disc upper pump without a locking clamping ring and with a hidden oil pipe, which relates to the technical field of bicycle brake systems and comprises a transverse pipe component, a handle component, an oil passing screw and an oil pipe component. The transverse pipe assembly is composed of a handlebar transverse pipe, a handlebar sleeve and an internal expansion component, and the internal expansion component is used for fixing the upper pump into the handlebar transverse pipe. The handle assembly comprises a brake handle and an upper pump, and the upper pump is connected with the horizontal pipe assembly and the oil pipe assembly through a protruding part of the upper pump. A T-shaped oil way is arranged in the oil passing screw and used for guiding oil liquid to the universal joint. The oil pipe assembly comprises a universal joint, an oil needle, an oil pipe, a clamp, a clamp locking screw and an oil needle sealing ring, and oil circulation is ensured and leakage is prevented. By means of the hidden oil pipe and the internal expansion mechanism, the problems that an oil pipe and a locking clamping ring of a traditional oil pressure disc brake system are exposed are solved, the appearance is more concise and attractive, and meanwhile sensitivity and reliability of the brake system are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bicycle brake system technical field, specifically a kind of oil disc upper pump without locking clamp ring and oil pipe hidden type. BACKGROUND

[0002] Nowadays, cycling is becoming more and more popular, and it has become the best choice for people's daily travel and exercise. As people's demand for high-quality cycling is getting higher and higher, more and more bicycles choose oil pressure disc brake as the main braking mode. Compared with other braking modes, oil pressure disc brake has the advantages of strong braking force and light brake feel.

[0003] However, the oil pipe of the traditional oil pressure disc brake system is usually exposed outside the handlebar tube, which causes messy wiring and affects the appearance of the whole, which not only affects the appearance, but also is easily affected by the external environment, causing the oil pipe to be damaged or leaking. And the upper pump is usually fixed on the handlebar tube by clamp ring, which affects the appearance. The utility model aims to solve the above problems, and provides an oil disc upper pump device with completely hidden oil pipe and no need to expose locking clamp ring, so that the appearance of the bicycle is more simple and beautiful. SUMMARY

[0004] The utility model aims to provide a kind of no locking clamp ring and oil pipe hidden type oil disc upper pump to solve the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of no locking clamp ring and oil pipe hidden type oil disc upper pump, comprising:

[0007] A horizontal tube assembly, the horizontal tube assembly includes a handlebar tube, a handlebar sleeve and an internal expansion member, the handlebar tube is provided with two holes, the handlebar sleeve is fixedly connected outside the handlebar tube, and the internal expansion member is used to fix the upper pump inside the handlebar tube;

[0008] A handle assembly, the handle assembly includes a brake handle and an upper pump, the upper pump has two protruding parts: an upper pump oil pipe protrusion and an upper pump fixing protrusion, the upper pump oil pipe protrusion is used to connect the oil pipe assembly, the upper pump fixing protrusion is used to connect the internal expansion member, the upper pump oil pipe protrusion and the upper pump fixing protrusion are inserted into the two holes on the handlebar tube respectively, and the upper pump oil pipe protrusion is provided with an upper pump oil passage hole;

[0009] An oil passage screw, the oil passage screw is fixed on the upper pump oil pipe protrusion by screw thread connection, and the oil passage screw is provided with a T-shaped oil passage screw oil passage inside, for guiding the oil from the upper pump cavity to the universal joint;

[0010] The oil pipe assembly comprises a universal joint, an oil needle, an oil pipe, a clamp ring and a clamp ring locking screw, the universal joint is locked on the upper pump oil pipe protrusion through an oil passage screw, the oil needle is inserted into the oil pipe, the clamp ring passes through the oil pipe and is connected with the universal joint through the clamp ring locking screw, and the oil needle front end is provided with an oil needle sealing ring for sealing.

[0011] As a further scheme of the utility model, the inner expansion component comprises an inner expansion lower sliding block, an inner expansion upper sliding block, an upper pump fixing screw and an inner expansion fixing ring, the upper pump fixing screw penetrates the inner expansion upper sliding block and the inner expansion lower sliding block and is connected with the upper pump fixing protrusion through the inner expansion fixing ring.

[0012] As a further scheme of the utility model, the handle assembly further comprises a shaft disc, a push rod, a piston and a lip-shaped sealing ring, the brake handle is connected with the push rod through the shaft disc, one end of the push rod is connected with the shaft disc, the other end is connected with the piston, the piston front end is fixedly connected with the lip-shaped sealing ring, and the shaft disc, the push rod, the piston and the lip-shaped sealing ring are arranged in the upper pump.

[0013] As a further scheme of the utility model, the upper pump oil passage hole is communicated with the oil passage screw oil passage.

[0014] As a further scheme of the utility model, the oil pipe assembly further comprises a universal joint oil passage, an oil needle oil passage and an oil pipe oil passage, the universal joint is internally provided with the universal joint oil passage for guiding oil from the oil passage screw oil passage to the oil needle, the oil needle is internally provided with the oil needle oil passage for guiding oil from the universal joint oil passage to the oil pipe, and the oil pipe is internally provided with the oil pipe oil passage for guiding oil from the oil needle oil passage to the lower caliper.

[0015] As a further scheme of the utility model, the universal joint front end and the universal joint rear end are respectively pressed with universal joint oil seals for preventing oil leakage.

[0016] Compared with the prior art, the device hides the oil pipe in the handle, is clean in appearance, improves the overall aesthetic degree of the bicycle, the inner expansion mechanism fixes the upper pump, avoids the loosening problem of the traditional locking clamp ring, improves the reliability of the system, simplifies the installation and dismounting process of the upper pump, is convenient to maintain and replace, effectively prevents oil leakage through the design of the oil needle sealing ring and the universal joint oil seal, improves the sealing performance of the system, and is outstanding in use effect and is worth promoting. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of a locking clamp ring and oil pipe hidden type oil disc upper pump.

[0018] Figure 2 It is a structure schematic view of an inner expansion upper sliding block and an inner expansion lower sliding block in a locking clamp ring and oil pipe hidden type oil disc upper pump.

[0019] Figure 3 It is a side view of a hidden oil pan upper pump without locking clamp ring and oil pipe.

[0020] Figure 4 It is Figure 3 A-A sectional view.

[0021] Figure 5 It is a structure diagram of a cross pipe assembly in a hidden oil pan upper pump without locking clamp ring and oil pipe.

[0022] Figure 6 It is a structure diagram of a handle assembly in a hidden oil pan upper pump without locking clamp ring and oil pipe.

[0023] Figure 7 It is a structure diagram of an oil passing screw in a hidden oil pan upper pump without locking clamp ring and oil pipe.

[0024] Figure 8 It is a structure diagram of an oil pipe assembly in a hidden oil pan upper pump without locking clamp ring and oil pipe.

[0025] In the figure: 1, cross pipe assembly; 101, handle cross pipe; 102, handle sleeve; 2, inner expansion component; 3, handle assembly; 301, brake handle; 302, upper pump; 303, upper pump oil pipe protrusion; 304, upper pump fixing protrusion; 305, upper pump oil passage hole; 306, shaft disc; 307, push rod; 308, piston; 309, lip-shaped sealing ring; 4, oil passing screw; 5, oil passing screw oil passage; 6, oil pipe assembly; 601, universal joint; 602, oil needle; 603, oil pipe; 604, clamp ring; 605, clamp ring locking screw; 606, oil needle sealing ring; 607, universal joint oil passage; 608, oil needle oil passage; 609, oil pipe oil passage; 201, inner expansion lower sliding block; 202, inner expansion upper sliding block; 203, upper pump fixing screw; 204, inner expansion fixing ring; 7, universal joint oil seal. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0027] In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model indicated or implied by the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0028] In the description of the utility model, it needs to be understood that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0029] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0030] Embodiment one

[0031] Please refer to Figures 1-8 A locking clamp ring and a hidden oil pan pump, comprising:

[0032] The horizontal pipe assembly 1 comprises a handle horizontal pipe 101, a handle sleeve 102 and an internal expansion member 2, two holes are arranged on the handle horizontal pipe 101, the handle sleeve 102 is fixedly connected outside the handle horizontal pipe 101, and the internal expansion member is used for fixing the upper pump 302 inside the handle horizontal pipe 101;

[0033] The handle assembly 3 comprises a brake handle 301 and an upper pump 302, the upper pump 302 has two protruding parts: an upper pump oil pipe protruding portion 303 and an upper pump fixing protruding portion 304, the upper pump oil pipe protruding portion 303 is used for connecting the oil pipe assembly 6, the upper pump fixing protruding portion 304 is used for connecting the internal expansion member 2, the upper pump oil pipe protruding portion 303 and the upper pump fixing protruding portion 304 are inserted into the two holes on the horizontal pipe respectively, and the upper pump oil passage hole 305 is formed in the upper pump oil pipe protruding portion 303;

[0034] The oil screw 4 is fixed on the upper pump oil pipe protrusion 303 by thread connection, and the oil screw 4 is internally provided with a T-shaped oil screw oil way 5 for guiding oil from the upper pump cavity to the universal joint 601.

[0035] The oil pipe assembly 6 comprises the universal joint 601, the oil needle 602, the oil pipe 603, the clamp ring 604 and the clamp ring locking screw 605, the universal joint 601 is locked on the upper pump oil pipe protrusion 303 by the oil screw 4, the oil needle 602 is inserted into the oil pipe 603, the clamp ring 604 passes through the oil pipe 603 and is connected with the universal joint 601 by the clamp ring locking screw 605, and the oil needle 602 is provided with the oil needle sealing ring 606 at the front end for sealing.

[0036] The inner expansion member 2 comprises an inner expansion lower sliding block 201, an inner expansion upper sliding block 202, an upper pump fixing screw 203 and an inner expansion fixing ring 204, the upper pump fixing screw 203 penetrates the inner expansion upper sliding block 202 and the inner expansion lower sliding block 201 and is threadedly connected with the upper pump fixing protrusion 304 by the inner expansion fixing ring 204.

[0037] The device is provided with the inner expansion member 2 for fixing the upper pump 302 on the handle cross pipe 101, the inner expansion lower sliding block 201 and the inner expansion upper sliding block 202 are connected by the upper pump fixing screw 203, the inner expansion fixing ring 204 is sleeved on the upper pump fixing screw 203 to prevent the sliding block and the screw from falling off, and the inner expansion mechanism is connected with the upper pump fixing protrusion 304 by the upper pump fixing screw 203. When the upper pump fixing screw 203 is tightened, the inner expansion lower sliding block 201 and the inner expansion upper sliding block 202 slide relative to each other under the pressure of the screw, and since the contact surfaces of the two sliding blocks are inclined surfaces, radial expansion force is generated during sliding, so that the sliding blocks are tightly pressed against the inner wall of the handle cross pipe 101. The inner expansion force can firmly fix the upper pump 302 inside the handle cross pipe 101. That is, the inner expansion mechanism can be completely hidden inside the handle cross pipe 101, and no locking device can be seen from the outside, so that the appearance is more simple and beautiful.

[0038] Embodiment two

[0039] The handle assembly 3 further comprises a shaft disc 306, a push rod 307, a piston 308 and a lip-shaped sealing ring 309, the brake handle 301 is connected with the push rod 307 through the shaft disc 306, one end of the push rod 307 is connected with the shaft disc 306, the other end is connected with the piston 308, the piston 308 is fixedly connected with the lip-shaped sealing ring 309 at the front end, and the shaft disc 306, the push rod 307, the piston 308 and the lip-shaped sealing ring 309 are arranged inside the upper pump 302.

[0040] The upper pump oil way hole 305 of the device is communicated with the oil screw oil way 5.

[0041] The oil pipe assembly 6 of the device further comprises a universal joint oil passage 607, an oil needle oil passage 608 and an oil pipe oil passage 609. The universal joint oil passage 607 is arranged inside the universal joint 601 for guiding oil from the oil screw oil passage 5 to the oil needle 602. The oil needle oil passage 608 is arranged inside the oil needle 602 for guiding oil from the universal joint oil passage 607 to the oil pipe 603. The oil pipe oil passage 609 is arranged inside the oil pipe 603 for guiding oil from the oil needle oil passage 608 to the lower caliper.

[0042] The universal joint 601 of the device is provided with a universal joint oil seal 7 at the front and rear ends for preventing oil leakage.

[0043] When the rider presses the brake lever 301, the brake lever 301 moves the push rod 307 forward through the shaft disc 306, and the push rod 307 pushes the piston 308 to move in the upper pump 302 cavity, extruding the brake oil in the cavity. The oil enters the oil screw oil passage 5 through the upper pump oil passage hole 305, and then is transmitted to the lower caliper through the universal joint oil passage 607, the oil needle oil passage 608 and the oil pipe oil passage 609, pushing the caliper piston to realize braking. When the rider releases the brake lever 301, the push rod 307 returns to the original position under the action of the spring, and the piston 308 also returns to the original position. The oil returns from the lower caliper to the upper pump 302 cavity, and the caliper piston returns to the original position, and the brake is released.

[0044] The connection mechanism of the brake lever 301 and the upper pump 302 of the device is hidden inside the handlebar tube 101, and the oil pipe 603 and the connection mechanism cannot be seen from the appearance, making the appearance cleaner and more tidy.

[0045] Working principle

[0046] The device is provided with an internal expansion member 2 for fixing the upper pump 302 on the handlebar tube 101. The internal expansion lower sliding block 201 and the internal expansion upper sliding block 202 are connected through the upper pump fixing screw 203. The internal expansion fixing ring 204 is sleeved on the upper pump fixing screw 203 to prevent the sliding block and the screw from falling off. The internal expansion mechanism is connected with the upper pump fixing protrusion 304 through the upper pump fixing screw 203. When the upper pump fixing screw 203 is tightened, the internal expansion lower sliding block 201 and the internal expansion upper sliding block 202 slide relative to each other under the pressure of the screw. Since the contact surfaces of the two sliding blocks are inclined surfaces, radial expansion force is generated during sliding, so that the sliding blocks are tightly pressed against the inner wall of the handlebar tube 101. This internal expansion force can firmly fix the upper pump 302 inside the handlebar tube 101.

[0047] When the rider presses the brake lever 301, the brake lever 301 drives the push rod 307 to move forward through the shaft disc 306, the push rod 307 pushes the piston 308 to move in the upper pump 302 cavity, and squeezes the brake oil in the cavity. The oil enters the oil screw oil way 5 through the upper pump oil way hole 305, and then is transmitted to the lower caliper through the universal joint oil way 607, the oil needle oil way 608 and the oil pipe oil way 609, pushes the caliper piston to realize braking. When the rider releases the brake lever 301, the push rod 307 is reset under the action of the spring, and the piston 308 is also reset. The oil returns from the lower caliper to the upper pump 302 cavity, the caliper piston is reset, and the brake is released.

[0048] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0049] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A lockless clamp ring and oil tube hidden oil pan upper pump, characterized in that, The utility model relates to a kind of handlebar and pump assembly, including: Handlebar tube assembly (1), the handlebar tube assembly (1) includes handlebar tube (101), handlebar sleeve (102) and inner inflation component (2), two holes are provided on handlebar tube (101), handlebar sleeve (102) is fixedly connected on the outside of handlebar tube (101), and inner inflation component is used to fix upper pump (302) in the inside of handlebar tube (101); Handlebar assembly (3), the handlebar assembly (3) includes brake handle (301) and upper pump (302), and the upper pump (302) has two convex parts: upper pump oil pipe convex (303) and upper pump fixed convex (304), the upper pump oil pipe convex (303) is used to connect oil pipe assembly (6), the upper pump fixed convex (304) is used to connect inner inflation component (2), and the upper pump oil pipe convex (303) and the upper pump fixed convex (304) are inserted into two holes on handlebar tube respectively, and upper pump oil passage hole (305) is opened on the upper pump oil pipe convex (303); Oil screw (4), the oil screw (4) is fixed on the upper pump oil pipe convex (303) by thread connection, and the oil screw (4) is internally provided with T-shaped oil screw oil passage (5), for guiding oil from upper pump cavity to universal joint (601); Oil pipe assembly (6), the oil pipe assembly (6) includes universal joint (601), oil needle (602), oil pipe (603), clamp ring (604) and clamp ring locking screw (605), the universal joint (601) is locked on the upper pump oil pipe convex (303) by the oil screw (4), the oil needle (602) is inserted into the oil pipe (603), the clamp ring (604) passes through the oil pipe (603) and is connected with the universal joint (601) by the clamp ring locking screw (605), and the oil needle (602) is provided with oil needle sealing ring (606) on the front end, for sealing.

2. The no-lock-clip-ring and hidden-tubing oil pan upper pump of claim 1, wherein, The inner inflation component (2) includes inner inflation lower slider (201), inner inflation upper slider (202), upper pump fixing screw (203) and inner inflation fixing ring (204), the upper pump fixing screw (203) penetrates the inner inflation upper slider (202) and the inner inflation lower slider (201), and is threadedly connected with the upper pump fixed convex (304) by the inner inflation fixing ring (204).

3. The no-lock-clip-ring and hidden-tubing-on-pump-on-disk, according to claim 1, wherein, The handlebar assembly (3) further includes shaft disc (306), push rod (307), piston (308) and lip-shaped sealing ring (309), the brake handle (301) is connected with the push rod (307) by the shaft disc (306), one end of the push rod (307) is connected with the shaft disc (306), the other end is connected with the piston (308), the piston (308) is fixedly connected with the lip-shaped sealing ring (309) on the front end, and the shaft disc (306), the push rod (307), the piston (308) and the lip-shaped sealing ring (309) are arranged in the inside of the upper pump (302).

4. The no-lock-clip-ring and hidden-tubing-on-pump-on-disk, according to claim 1, wherein, The upper pump oil passage hole (305) is communicated with the oil screw oil passage (5).

5. The no-lock-clip-ring and hidden-tubing-on-pan upper pump of claim 1, wherein, The oil pipe assembly (6) further comprises a universal joint oil path (607), an oil needle oil path (608) and an oil pipe oil path (609), the universal joint (601) is internally provided with the universal joint oil path (607) for guiding oil from the oil screw oil path (5) to the oil needle (602), the oil needle (602) is internally provided with the oil needle oil path (608) for guiding oil from the universal joint oil path (607) to the oil pipe (603), and the oil pipe (603) is internally provided with the oil pipe oil path (609) for guiding oil from the oil needle oil path (608) to the lower caliper.

6. The no-lock-clip-ring and hidden-tubing-on-pump-on-disk, according to claim 5, wherein, The universal joint (601) is respectively pressed with a universal joint oil seal (7) at the front and rear ends, for preventing oil leakage.

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