Tricycle rear wheel disc brake mechanism

Abstract

The utility model discloses a tricycle rear wheel disc brake mechanism, which belongs to the technical field of disc brake mechanisms, and comprises an oil pipe, a disc and a holding and pressing device, two ends of the oil pipe are respectively connected with a connector I and a connector II, one end of the connector II far away from the oil pipe is provided with a heat dissipation component, and the outer end of the heat dissipation component is connected with the holding and pressing device. The outer end of the first connector is provided with the heat dissipation pipe assembly, and the other end of the heat dissipation pipe assembly is provided with the oil pressure assembly. The heat dissipation assembly and the heat dissipation pipe assembly are arranged on the first connector and the second connector at the two ends of the oil pipe correspondingly, when a vehicle moves, a large amount of wind rushes to the heat dissipation assembly and the heat dissipation pipe assembly, and the oil pressure assembly is arranged at the other end of the heat dissipation pipe assembly. At the moment, when hydraulic oil flows through the heat dissipation assembly and the heat dissipation pipe assembly, heat can be transmitted to the heat dissipation tiles and the heat dissipation fins, so that heat dissipation can be conducted on the hydraulic oil, and under continuous long-time braking, the situation that a braking system is affected due to overheating of the hydraulic oil is not likely to happen.

Description

Technical Field

[0001] The utility model relates to the technical field of disc brake mechanisms, and more specifically to a rear wheel disc brake mechanism for a tricycle. Background Art

[0002] Disc brakes are a common braking system for vehicles, including bicycles, motorcycles, and cars. They are usually made of metal and mounted on the wheels. When the rider or driver presses the brake handle or pedal, the braking system applies pressure, clamping the pads in the brake caliper against the disc. The clamping of the pads creates friction, slowing down or stopping the rotation of the disc, thereby slowing down the wheel and vehicle. Disc brake systems generally have a long lifespan and are not easily affected by wear. At high speeds, disc brake systems perform better and are less prone to brake fade.

[0003] Chinese patent publication number CN216636750U discloses an electric vehicle disc brake mechanism. By manually rotating an adjustment sleeve and driving the adjustment sleeve axially along a connecting tube toward a caliper, the space in the connecting tube is reduced, thereby promoting the flow of brake fluid. Since brake fluid is not easily compressed, the brake member slides under the pressure of the brake fluid and approaches the brake disc of the electric vehicle, thereby reducing the travel between the end face of the brake member facing the electric vehicle brake disc and the brake disc of the electric vehicle. During braking, the brake member only needs to be slightly turned on the brake handle to fit and press the brake disc, thereby achieving the purpose of improving the sensitivity of the disc brake mechanism. On the basis of ensuring the accuracy of the sensitivity adjustment of the disc brake structure, it is convenient for personnel to manually rotate the adjustment sleeve, rotate the locking sliding sleeve, and drive its surface to press against the end face of the adjustment sleeve toward the caliper, thereby limiting the loosening of the adjustment sleeve due to bumps during the driving of the electric vehicle, thereby ensuring the sensitivity of the electric vehicle brake mechanism.

[0004] Currently, most of the disc brakes on tricycles on the market are hydraulic disc brakes or cable-operated disc brakes. Hydraulic disc brakes mostly use mineral oil. After long-term continuous braking, the heat generated by the friction between the brake pads and the disc is easily transferred to the mineral oil. The boiling point of mineral oil is relatively low, so after long-term continuous braking, the mineral oil is prone to overheating and have an adverse effect on the safety of the braking system.

[0005] Therefore be necessary to provide a kind of tricycle rear wheel disc brake mechanism to solve the above problems. Utility Model Content

[0006] The utility model provides a rear wheel disc brake mechanism for a tricycle, which can improve the problem in the related art that after long-term continuous braking, the heat generated by the friction between the pad and the disc is easily transferred to the mineral oil. The boiling point of the mineral oil is relatively low, so after long-term continuous braking, the temperature of the mineral oil is easily too high, which has an adverse effect on the safety of the brake system.

[0007] An embodiment of the present application provides a rear wheel disc brake mechanism for a tricycle, comprising an oil pipe, a disc and a gripping and pressing device, wherein the two ends of the oil pipe are respectively connected to connector 1 and connector 2, and connector 2 is provided with a heat dissipation component at one end away from the oil pipe, and the outer end of the heat dissipation component is connected to the gripping and pressing device, the outer end of connector 1 is provided with a heat dissipation pipe assembly, and the other end of the heat dissipation pipe assembly is provided with an oil pressure assembly, and the heat dissipation component includes a heat dissipation shell, an oil delivery channel is provided inside the heat dissipation shell, and the oil delivery channel is curved, and a plurality of heat dissipation tiles are provided on both sides of the heat dissipation shell.

[0008] The above-mentioned technical solution in the embodiment of the present application has at least the following technical effects: by respectively arranging the heat dissipation component and the heat dissipation pipe component on the connector 1 and the connector 2 at both ends of the oil pipe, when the vehicle is moving, a large amount of wind will rush to the heat dissipation component and the heat dissipation pipe component. At this time, when the hydraulic oil flows through the heat dissipation component and the heat dissipation pipe component, the heat will be transferred to the heat dissipation tiles and the heat dissipation fins, so that the hydraulic oil can be dissipated. Under continuous long-term braking, it is not easy for the brake system to be affected by overheating of the hydraulic oil.

[0009] In some embodiments, the hydraulic assembly includes a hydraulic housing, a connecting port is provided at the top of the hydraulic housing, a hydraulic cylinder is provided inside the hydraulic housing, the connecting port and the hydraulic cylinder are communicated with each other, a piston is slidably connected to the inner wall of the hydraulic cylinder, two brake pads are provided on the inner side of the hydraulic housing, and the disc is located between the two brake pads.

[0010] In some embodiments, the piston is connected to one of the brake pads, one of the brake pads is directly driven by the piston, two sliding rods are installed inside the oil pressure housing, the outer end of the brake pad is slidingly connected to the sliding rod, and a clamp is provided between the two sliding rods.

[0011] In some embodiments, both ends of the oil delivery channel are connected to the second connector and the gripping device port respectively, and two groups of ventilation holes are opened inside the heat dissipation shell, and the two groups of ventilation holes are respectively located on both sides of the oil delivery channel.

[0012] In some embodiments, the heat dissipation tile includes a tile body and two connecting plates, the two connecting plates are respectively fixed on both sides of the tile body, the tile body is connected to the heat dissipation shell through the connecting plates, the tile body is arranged in an arc shape, and a plurality of heat dissipation holes are opened at the outer end of the tile body.

[0013] In some embodiments, the heat dissipation pipe assembly includes a bent pipe, which is bent in a curved configuration. The two ends of the bent pipe are respectively connected to the connector 1 and the connection port. The outer end of the bent pipe is fixedly connected to two fixing frames, which serve as a support to prevent the bent pipe from deforming.

[0014] In some embodiments, a plurality of equidistantly distributed heat dissipation fins are fixedly connected to the outer periphery of the curved pipe, and the heat dissipation fins are arranged in a wave shape to increase the heat dissipation area. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the oil pressure component of the utility model;

[0018] Figure 3 This is a schematic diagram of the heat dissipation component structure of the present utility model;

[0019] Figure 4 This is a schematic diagram of the heat dissipation tile structure of the utility model;

[0020] Figure 5 This is a schematic structural diagram of the heat pipe assembly of the present utility model;

[0021] Figure 6 This is a partial cross-sectional structural diagram of the heat dissipation pipe assembly of the present invention.

[0022] Description of the numbers in the figure:

[0023] 1. Oil pipeline;

[0024] 2. Connector 1;

[0025] 3. Connector 2;

[0026] 4. Heat dissipation assembly; 41. Heat dissipation housing; 42. Oil transfer channel; 43. Ventilation hole; 44. Heat dissipation tile; 441. Tile body; 442. Connecting plate; 443. Heat dissipation hole;

[0027] 5. Grip and pressure device;

[0028] 6. Heat pipe assembly; 61. Bend pipe; 62. Fixing frame; 63. Heat dissipation fin;

[0029] 7. Disc;

[0030] 8. Hydraulic assembly; 81. Hydraulic housing; 82. Connecting port; 83. Piston; 84. Brake pad; 85. Slide rod; 86. Clip; 87. Hydraulic cylinder. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0032] Based on this, the problem in the related technology that after long-term continuous braking, the heat generated by the friction between the pad and the disc is easily transferred to the mineral oil can be improved. The boiling point of mineral oil is relatively low. Therefore, after long-term continuous braking, the mineral oil is prone to overheating and has an adverse effect on the safety of the braking system.

[0033] See also Figures 1-6 A rear wheel disc brake mechanism for a tricycle includes an oil pipe 1, a disc 7 and a gripping and pressing device 5. The two ends of the oil pipe 1 are respectively connected to a connector 1 2 and a connector 2 3. The connector 2 3 is provided with a heat dissipation component 4 at one end away from the oil pipe 1. The outer end of the heat dissipation component 4 is connected to the gripping and pressing device 5. The outer end of the connector 1 2 is provided with a heat dissipation pipe assembly 6. The other end of the heat dissipation pipe assembly 6 is provided with an oil pressure component 8. The heat dissipation component 4 includes a heat dissipation shell 41. An oil delivery channel 42 is provided inside the heat dissipation shell 41. The oil delivery channel 42 is arranged in a curved shape. A plurality of heat dissipation tiles 44 are provided on both sides of the heat dissipation shell 41.

[0034] The hydraulic assembly 8 includes a hydraulic housing 81, a connecting port 82 is provided at the top of the hydraulic housing 81, a hydraulic cylinder 87 is provided inside the hydraulic housing 81, the connecting port 82 and the hydraulic cylinder 87 are connected, a piston 83 is slidably connected to the inner wall of the hydraulic cylinder 87, two brake pads 84 are provided on the inner side of the hydraulic housing 81, and the disc 7 is located between the two brake pads 84.

[0035] The piston 83 is connected to one of the brake pads 84 , and one of the brake pads 84 is directly driven by the piston 83 . Two slide rods 85 are installed inside the oil pressure housing 81 . The outer end of the brake pad 84 is slidably connected to the slide rod 85 , and a clamping piece 86 is provided between the two slide rods 85 .

[0036] Currently, the disc brakes on the market are mainly divided into hydraulic and cable-pull disc brakes. The disc brakes in this solution are hydraulic disc brakes used for tricycles. Mineral oil is non-hydroscopic, so it can adapt to humid environments. It is also non-corrosive, seal-friendly, non-toxic and safer. Therefore, the hydraulic oil used in hydraulic disc brakes is mostly mineral oil, but the boiling point of mineral oil is low. Under continuous and long-term braking, the heat generated by the friction between the brake pad 84 and the disc 7 is transferred to the hydraulic oil. The hydraulic oil is prone to overheating and affecting its performance. The device in this solution mainly actively dissipates the heat of the hydraulic oil, so that the tricycle can brake continuously for a long time.

[0037] At both ends of the oil pipe 1 are connected to connector 1 2 and connector 2 3 respectively. Connector 1 2 and connector 2 3 are mainly used to connect the heat dissipation pipe assembly 6 and the heat dissipation assembly 4. The heat dissipation assembly 4 is connected to the gripping device 5. The gripping device 5 is mainly composed of a handle, a plunger, an oil storage tank and a reset mechanism. The gripping device 5 is installed on the handle of the tricycle. By squeezing the handle on the gripping device 5, it can drive the plunger to squeeze the hydraulic oil in the oil storage tank, thereby transporting the hydraulic oil through the heat dissipation assembly 4, the oil pipe 1 and the heat dissipation pipe assembly 6 to the oil pressure assembly 8, so that it generates braking force. When the heat dissipation assembly 4 is installed next to the gripping device 5, the ventilation holes 43 of the heat dissipation assembly 4 need to be set facing the wind. When riding, wind can flow into it, and the heat dissipation pipe assembly 6 is installed on the oil pressure assembly 8, so that it can perform secondary heat dissipation of the hydraulic oil. By respectively arranging the heat dissipation assembly 4 and the heat dissipation pipe assembly 6 on the connector 1 2 and the connector 2 3 at both ends of the oil pipe 1, when the vehicle is moving, a large amount of wind will rush to the heat dissipation assembly 4 and the heat dissipation pipe assembly 6. At this time, when the hydraulic oil flows through the heat dissipation assembly 4 and the heat dissipation pipe assembly 6, the heat will be transferred to the heat dissipation tile 44 and the heat dissipation fin 63, so that it can continuously dissipate heat for the hydraulic oil, so that it is not easy to affect the braking system due to overheating of the hydraulic oil under continuous long-term braking, thereby improving the reliability of the disc brake system under extreme conditions.

[0038] The hydraulic assembly 8 in this solution is for braking. The disc 7 is mounted on the tire of the tricycle and rotates synchronously with the tire. The hydraulic housing 81 is mounted on the frame. The connection port 82 is connected to the heat pipe assembly 6 so that the hydraulic oil can enter the hydraulic cylinder 87 inside the hydraulic housing 81. A piston 83 is installed inside the hydraulic cylinder 87. The piston 83 can slide inside the cylinder. The piston 83 can move outward through the push of the hydraulic oil. One of the two brake pads 84 is mounted on the piston 83. At the same time, the two brake pads 84 are located on both sides of the disc 7. The two brake pads 84 are connected by two slide rods 85. The brake pad 84 is penetrated by the piston 83, so that the brake pad 84 can slide on the slide bar 85. A clamping piece 86 is provided between the two slide bars 85 for positioning and limiting the slide bar 85 to improve stability. When the gripping device 5 is pressed, the hydraulic oil transmits the pressure to the inside of the hydraulic cylinder 87 through the heat dissipation component 4, the oil pipe 1 and the heat dissipation pipe component 6, and then the piston 83 can be pushed to make the brake pad 84 press against the disc 7. When the brake pad 84 presses against the outside of the disc 7 and cannot move forward anymore, the other brake pad 84 will press against the disc 7 indirectly through the oil pressure housing 81, so that the two brake pads 84 clamp the disc 7 to complete the braking.

[0039] Optionally, in some embodiments, see Figure 3 and Figure 4The two ends of the oil delivery channel 42 are respectively connected to the connector 2 3 and the gripping device 5 port. Two groups of ventilation holes 43 are opened inside the heat dissipation shell 41. The two groups of ventilation holes 43 are respectively located on both sides of the oil delivery channel 42.

[0040] The heat dissipation tile 44 includes a tile body 441 and two connecting plates 442. The two connecting plates 442 are respectively fixed on both sides of the tile body 441. The tile body 441 is connected to the heat dissipation shell 41 through the connecting plates 442. The tile body 441 is arranged in an arc shape, and a plurality of heat dissipation holes 443 are opened at the outer end of the tile body 441.

[0041] The heat dissipation component 4 in this solution is mainly installed at the outer end of the gripping device 5 to dissipate heat for the hydraulic oil. An oil delivery channel 42 is provided inside the heat dissipation shell 41. The oil delivery channel 42 is in a reciprocating bending state, which prolongs the time for the hydraulic oil flowing through the oil delivery channel 42 so that it can repeatedly contact the heat dissipation shell 41 and transfer heat to the heat dissipation shell 41. Heat dissipation tiles 44 are fixed on both sides of the heat dissipation shell 41. The heat dissipation tiles 44 are mainly composed of a tile body 441 and a connecting plate 442. The tile body 441 is in a semicircular arc shape, which can increase Windward area, the tile body 441 is fixed to the outer end of the heat dissipation shell 41 through the connecting plate 442, and a plurality of heat dissipation holes 443 are also provided on the tile body 441 to allow wind to pass through and take away heat. Two rows of ventilation holes 43 are also provided at the outer end of the heat dissipation shell 41, and the two rows of ventilation holes 43 are respectively arranged on both sides of the oil transfer channel 42, and the ventilation holes 43 pass through the heat dissipation shell 41. Therefore, when installing the heat dissipation component 4, it is necessary to place it on the windward side. When the tricycle is driving, the wind can pass through the ventilation holes 43 to take away heat, thereby further improving its heat dissipation effect.

[0042] Optionally, in some embodiments, see Figure 5 and Figure 6 The heat dissipation pipe assembly 6 includes a bent pipe 61, which is bent. The two ends of the bent pipe 61 are respectively connected to the connector 2 and the connection port 82. The outer end of the bent pipe 61 is fixedly connected to two fixing frames 62, which play a supporting role to prevent the bent pipe 61 from deformation.

[0043] The outer portion of the curved pipe 61 is surrounded and fixedly connected with a plurality of equidistantly distributed heat dissipation fins 63 . The heat dissipation fins 63 are arranged in a wave shape to increase the heat dissipation area.

[0044] The heat dissipation pipe assembly 6 in this solution is installed on the oil pressure assembly 8. The heat dissipation pipe assembly 6 is also used to dissipate heat for the hydraulic oil. Since the viscosity of the hydraulic oil is high, it circulates slowly in the disc brake system. By respectively arranging the heat dissipation assembly 4 and the heat dissipation pipe assembly 6 at both ends of the oil pipe 1, its heat dissipation effect can be improved. The elbow 61 is also curved in shape, and its function is the same as that of the oil delivery channel 42, and it is also to increase the time for the hydraulic oil to flow through. The two ends of the elbow 61 are in contact with the connector 2 and the connection port 82 respectively. The outer end of the elbow 61 is fixedly connected to two fixing brackets. 62. Since the interior of the bend pipe 61 is hollow, it is easy to deform when it is hit. The stability of the bend pipe 61 can be improved by fixing it with the fixing frame 62. A plurality of heat dissipation fins 63 are fixed on the outer periphery of the bend pipe 61. The heat dissipation fins 63 are wavy and are used to increase the contact area with the air and to improve the heat dissipation effect. When the hydraulic oil flows through the bend pipe 61, its heat will be dissipated through the heat dissipation fins 63. Through the cooperation of the heat dissipation component 4 and the heat dissipation pipe component 6, the reliability of the disc brake mechanism during long-term continuous braking can be guaranteed.

[0045] Working principle: When the device is used for braking, the gripping device 5 is pressed, and the hydraulic oil transmits the pressure to the inside of the hydraulic cylinder 87 through the heat dissipation component 4, the oil pipe 1 and the heat dissipation pipe assembly 6, which can push the piston 83 to make the brake pad 84 press against the disc 7. The other brake pad 84 will also press against the disc 7 through the indirect drive of the oil pressure housing 81, so that the two brake pads 84 clamp the disc 7 to complete the braking. An oil delivery channel 42 is provided inside the heat dissipation housing 41. The hydraulic oil flowing through the oil delivery channel 42 transfers heat to the heat dissipation housing 41. Heat dissipation tiles 44 are fixed on both sides of the heat dissipation housing 41 to allow wind to pass through and take away heat. At the same time, wind passing through the ventilation holes 43 can improve its heat dissipation effect. A plurality of heat dissipation fins 63 are fixed on the outer periphery of the elbow 61. When the hydraulic oil flows through the elbow 61, its heat will be dissipated through the heat dissipation fins 63. By respectively arranging the heat dissipation component 4 and the heat dissipation pipe assembly 6 at both ends of the oil pipe 1, its heat dissipation effect can be improved.

Claims

1. A rear wheel disc brake mechanism for a tricycle, comprising an oil pipe (1), a disc (7) and a gripping device (5), characterized in that: The two ends of the oil pipe (1) are respectively connected to a connector 1 (2) and a connector 2 (3); the connector 2 (3) is provided with a heat dissipation component (4) at one end away from the oil pipe (1); the outer end of the heat dissipation component (4) is connected to the gripping device (5); the outer end of the connector 1 (2) is provided with a heat dissipation pipe component (6); the other end of the heat dissipation pipe component (6) is provided with an oil pressure component (8); The heat dissipation assembly (4) comprises a heat dissipation housing (41), an oil delivery channel (42) is provided inside the heat dissipation housing (41), the oil delivery channel (42) is arranged in a curved manner, and a plurality of heat dissipation tiles (44) are provided on both sides of the heat dissipation housing (41).

2. A tricycle rear wheel disc brake mechanism according to claim 1, characterized in that: The oil pressure assembly (8) includes an oil pressure housing (81), a connection port (82) is provided at the top of the oil pressure housing (81), a hydraulic cylinder (87) is provided inside the oil pressure housing (81), the connection port (82) and the hydraulic cylinder (87) are connected, a piston (83) is slidably connected to the inner wall of the hydraulic cylinder (87), two brake pads (84) are provided inside the oil pressure housing (81), and the disc (7) is located between the two brake pads (84).

3. The rear wheel disc brake mechanism of a tricycle according to claim 2, characterized in that: The piston (83) is connected to one of the brake pads (84), one of the brake pads (84) is directly driven by the piston (83), two slide rods (85) are installed inside the oil pressure housing (81), the outer end of the brake pad (84) is slidably connected to the slide rod (85), and a clamping piece (86) is provided between the two slide rods (85).

4. The rear wheel disc brake mechanism of a tricycle according to claim 1, characterized in that: The two ends of the oil delivery channel (42) are respectively connected to the second connector (3) and the gripping device (5) port. Two groups of ventilation holes (43) are provided inside the heat dissipation housing (41). The two groups of ventilation holes (43) are respectively located on both sides of the oil delivery channel (42).

5. The rear wheel disc brake mechanism of a tricycle according to claim 4, characterized in that: The heat dissipation tile (44) comprises a tile body (441) and two connecting plates (442). The two connecting plates (442) are respectively fixed on both sides of the tile body (441). The tile body (441) is connected to the heat dissipation shell (41) via the connecting plates (442). The tile body (441) is arranged in an arc shape, and a plurality of heat dissipation holes (443) are provided at the outer end of the tile body (441).

6. The rear wheel disc brake mechanism of a tricycle according to claim 2, characterized in that: The heat dissipation pipe assembly (6) comprises a bent pipe (61), the bent pipe (61) being arranged in a bent shape, the two ends of the bent pipe (61) being respectively connected to the connector 1 (2) and the connection port (82), and the outer end of the bent pipe (61) being fixedly connected to two fixing frames (62), the fixing frames (62) playing a supporting role to prevent the bent pipe (61) from being deformed.

7. The rear wheel disc brake mechanism of a tricycle according to claim 6, characterized in that: The curved pipe (61) is surrounded and fixedly connected to a plurality of equidistantly distributed heat dissipation fins (63), and the heat dissipation fins (63) are arranged in a wave shape to increase the heat dissipation area.

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