A braking linkage system and a tricycle

Abstract

This utility model belongs to the field of tricycle technology and discloses a braking linkage system and a tricycle. The braking linkage system includes a handlebar, a diverter valve, a front disc brake, a junction box, a left rear drum brake, and a right rear drum brake. The handlebar includes a grip and a handbrake lever. The diverter valve has a first valve core and has a main oil port, a front diverter oil port, and a rear diverter oil port. Rotating the handbrake lever can drive the first valve core to move, so that the front diverter oil port and the rear diverter oil port are connected to the main oil port. The front diverter oil port is connected to the front disc brake through a front outlet pipe. The junction box has an inner cavity and a piston. The piston is connected to the left rear drive wire and the right rear drive wire. The rear diverter oil port is connected to the inner cavity. The left rear drum brake is connected to the left rear drive wire, and the right rear drum brake is connected to the right rear drive wire. The tricycle includes the above-mentioned braking linkage system. This braking linkage system can realize the linkage braking of the front wheel, left rear wheel, and right rear wheel of the tricycle, with good braking performance and high safety.

Description

Technical Field

[0001] This utility model relates to the field of tricycle technology, and in particular to a braking linkage system and a tricycle. Background Technology

[0002] The tricycle is divided into two parts: a front wheel that can be turned and equipped with handles, a seat, pedals, etc., and a box-type or flat-panel structure at the rear. It has a left rear wheel and a right rear wheel on the left and right sides, respectively. It is driven by human or electric power through a chain, motor, and other components.

[0003] Compared to traditional two-wheeled bicycles, tricycles are wider and heavier, thus requiring greater attention to their driving safety, with braking performance being a crucial indicator. In current technology, tricycles often carry passengers or cargo, increasing their inertia and negatively impacting braking, leading to excessively long braking distances and uneven braking, both of which pose safety hazards. Therefore, effectively improving the braking system of tricycles has become a pressing technical problem that engineers in the field need to research and solve. Utility Model Content

[0004] The purpose of this utility model is to provide a braking linkage system that can realize the linkage braking of the front wheel, left rear wheel and right rear wheel of a tricycle, with reliable and stable braking effect and high safety.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A braking linkage system, comprising:

[0007] The handle includes a gripping portion and a handbrake lever hinged to the gripping portion;

[0008] The diverter valve has a first valve core inside and has a main oil port, a front diverter oil port and a rear diverter oil port. The main oil port is connected to the oil tank. The handbrake lever can drive the first valve core to move when rotated, so that the front diverter oil port and the rear diverter oil port are both connected to the main oil port.

[0009] The front disc brake is connected to the front disc brake via the front outlet pipe.

[0010] The junction box has an inner cavity, in which a piston is provided. The piston is connected to a left rear drive wire and a right rear drive wire, and the rear oil outlet communicates with the inner cavity.

[0011] The left rear drum brake is connected to the left rear drive cable;

[0012] The right rear drum brake is connected to the right rear drive cable.

[0013] Preferably, the handbrake lever is provided with a front drive wire, which is connected to the first valve core; the rotation of the handbrake lever can pull the front drive wire, causing the front drive wire to drive the first valve core to move.

[0014] Preferably, the gripping part is provided with a drive valve, and the drive valve is provided with a second valve core. The second valve core is connected to the handbrake lever. The drive valve has an oil inlet and an oil outlet. The oil inlet is connected to the oil tank, and the oil outlet is connected to the diverter valve. Rotating the handbrake lever can drive the second valve core to move, so that the oil inlet and the oil outlet are connected. The oil in the oil tank enters the diverter valve through the oil inlet and the oil outlet in sequence, pushing the first valve core to move.

[0015] Preferably, the inner cavity is provided with a sliding head, the piston has a sliding elongated hole, and the sliding head is slidably connected to the sliding elongated hole.

[0016] Preferably, the junction box has a first through hole and a second through hole, the left rear drive wire passes through the first through hole and is connected to the piston, and the right rear drive wire passes through the second through hole and is connected to the piston.

[0017] Preferably, both the first perforation and the second perforation are provided with sealing rings.

[0018] Preferably, the sealing ring is made of rubber.

[0019] Preferably, the left rear drive wire is hinged to the piston via a first hinge member, and the right rear drive wire is hinged to the piston via a second hinge member.

[0020] This utility model also provides a tricycle, including the above-mentioned brake linkage system, in which the front wheel, left rear wheel and right rear wheel achieve linkage braking, the braking effect is reliable and stable and the safety is high.

[0021] A tricycle, comprising:

[0022] A frame having a front wheel, a left rear wheel, and a right rear wheel;

[0023] As described in any of the above-mentioned braking linkage systems, the gripping part, the flow divider valve, the front disc brake, the junction box, the left rear drum brake, and the right rear drum brake are all mounted on the vehicle frame. The front disc brake is used to brake the front wheel, the left rear drum brake is used to brake the left rear wheel, and the right rear drum brake is used to brake the right rear wheel.

[0024] Preferably, one handle is provided on each of the left and right sides of the vehicle frame.

[0025] Beneficial effects:

[0026] The brake linkage system provided by this utility model allows the driver to grip the handbrake lever when braking is required. The lever rotates relative to the gripping part, driving the first valve core to move so that both the front and rear branch ports are connected to the main port. Oil from the tank enters the branch valve through the main port and is divided into two streams. One stream flows out of the branch valve through the front branch port and into the front disc brake via the front outlet pipe, thus braking the front disc brake. The other stream flows out of the branch valve through the rear branch port and into the junction box, pushing against the piston inside the junction box and simultaneously pulling the left and right rear drive cables. Pulling the left rear drive cable causes the left rear drum brake to engage, and pulling the right rear drive cable causes the right rear drum brake to engage. The aforementioned brake linkage system can simultaneously brake the front disc brake, the left rear drum brake, and the right rear drum brake via the handbrake lever. When applied to tricycles, it can simultaneously achieve linked braking of the front wheel, the left rear wheel, and the right rear wheel, providing reliable and stable braking performance and high safety. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the braking linkage system provided by this utility model;

[0028] Figure 2 This is a structural schematic diagram of the junction box provided by this utility model.

[0029] In the picture:

[0030] 1. Handle; 11. Grip; 12. Handbrake lever; 13. Front drive screw;

[0031] 2. Diverter valve; 21. Front diverter port; 211. Front outlet pipe; 22. Rear diverter port; 221. Rear outlet pipe;

[0032] 3. Front disc brake;

[0033] 4. Junction box; 401. Inner cavity; 402. First through hole; 403. Second through hole; 41. Piston; 411. Sliding elongated hole; 42. Left rear drive wire; 43. Right rear drive wire; 44. Sliding head; 45. Sealing ring;

[0034] 5. Frame. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] This embodiment provides a tricycle. (Refer to...) Figures 1 to 2As shown, the tricycle includes a frame 5, which has a front wheel, a left rear wheel, and a right rear wheel. The tricycle also includes a braking linkage system. The braking linkage system includes a handlebar 1, a diverter valve 2, a front disc brake 3, a junction box 4, a left rear drum brake, and a right rear drum brake. The handlebar 1 includes a grip portion 11 and a handbrake lever 12 hinged to the grip portion 11. The diverter valve 2 contains a first valve core and has a main oil port, a front diverter oil port 21, and a rear diverter oil port 22. The main oil port is connected to the oil tank. Rotating the handbrake lever 12 drives the first valve core to move, connecting both the front diverter oil port 21 and the rear diverter oil port 22 to the main oil port. The front diverter oil port 21 is connected to the front disc brake 3 via a front outlet pipe 211. The junction box 4 has an inner cavity 401, within which a piston 41 is installed. The piston 41 is connected to a left rear drive cable 42 and a right rear drive cable 43. The rear drain port 22 communicates with the inner cavity 401. The left rear drum brake is connected to the left rear drive cable 42, and the right rear drum brake is connected to the right rear drive cable 43. The left rear drive cable 42 is used to drive the left rear drum brake, and the right rear drive cable 43 is used to drive the right rear drum brake.

[0040] Specifically, the gripping part 11, the flow divider valve 2, the front disc brake 3, the junction box 4, the left rear drum brake, and the right rear drum brake are all mounted on the frame 5. The front disc brake 3 is used to brake the front wheel, the left rear drum brake is used to brake the left rear wheel, and the right rear drum brake is used to brake the right rear wheel.

[0041] In this embodiment, when the tricycle needs to brake, the driver holds the handbrake lever 12, which rotates relative to the gripping part 11, thereby driving the first valve core to move so that both the front split port 21 and the rear split port 22 are connected to the main port. The oil in the tank enters the split valve 2 through the main port and is divided into two streams. One stream flows out of the split valve 2 through the front split port 21 and enters the front disc brake 3 through the front outlet pipe 211, thereby driving the front disc brake 3 to brake. The rear split port 22 is connected to the inner cavity 401 of the junction box 4 through the rear outlet pipe 221. The other stream flows out of the split valve 2 through the rear split port 22 and enters the junction box 4 through the rear outlet pipe 221, pushing the piston 41 in the junction box 4 to move, while simultaneously pulling the left rear drive wire 42 and the right rear drive wire 43. Pulling the left rear drive cable 42 activates the left rear drum brake, and pulling the right rear drive cable 43 activates the right rear drum brake. This brake linkage system, via the handbrake lever 12, can simultaneously brake the front disc brake 3, the left rear drum brake, and the right rear drum brake. Applied to tricycles, it enables simultaneous linkage braking of the front, left, and right rear wheels, providing reliable, stable braking performance and high safety.

[0042] Specifically, the left rear drive cable 42 is connected to the drum brake rocker arm of the left rear drum brake, and the right rear drive cable 43 is connected to the drum brake rocker arm of the right rear drum brake.

[0043] In this embodiment, the handbrake lever 12 is provided with a front drive wire 13, which is connected to the first valve core. Rotating the handbrake lever 12 can pull the front drive wire 13, causing the front drive wire 13 to drive the first valve core to move. Specifically, when the driver holds the handbrake lever 12, the handbrake lever 12 rotates relative to the gripping part 11, which can pull the front drive wire 13. The pulling action of the front drive wire 13 pulls the first valve core to move, thereby enabling both the front split oil port 21 and the rear split oil port 22 to connect with the main oil port.

[0044] In some alternative embodiments, the grip 11 is provided with a drive valve (not shown), and the drive valve contains a second valve core. The second valve core is connected to the handbrake lever 12. The drive valve has an inlet and an outlet. The inlet is connected to the fuel tank, and the outlet is connected to the diverter valve 2. Specifically, when the driver grips the handbrake lever 12, rotating the handbrake lever 12 can drive the second valve core to move, so that the inlet and outlet are connected. The fuel in the fuel tank enters the diverter valve 2 through the inlet and outlet in sequence, pushing the first valve core to move. This also allows the front diverter port 21 and the rear diverter port 22 to be connected to the main fuel port.

[0045] Specifically, in this embodiment, the inner cavity 401 is provided with a sliding head 44, and the piston 41 has a sliding elongated hole 411, with the sliding head 44 slidably connected to the sliding elongated hole 411. Specifically, the sliding fit between the sliding elongated hole 411 and the sliding head 44 can further realize the sliding guidance of the piston 41, ensuring that the movement trajectory of the piston 41 is reliable and stable.

[0046] Specifically, the junction box 4 has a first through hole 402 and a second through hole 403. The left rear drive wire 42 passes through the first through hole 402 and connects to the piston 41, and the right rear drive wire 43 passes through the second through hole 403 and connects to the piston 41. Specifically, both the first through hole 402 and the second through hole 403 are connected to the inner cavity 401. The left rear drive wire 42 passes through the first through hole 402 and extends into the inner cavity 401 and connects to the piston 41, and the right rear drive wire 43 passes through the second through hole 403 and extends into the inner cavity 401 and connects to the piston 41.

[0047] Specifically, both the first through hole 402 and the second through hole 403 are provided with sealing rings 45. Specifically, the sealing rings 45 are sleeved on the outer periphery of the first through hole 402 and the second through hole 403, which can reliably seal the gaps between the first through hole 402 and the left and right drive wires and between the second through hole 403 and the right rear drive wire 43, ensuring reliable sealing inside the junction box 4.

[0048] Optionally, the sealing ring 45 may be made of rubber. Rubber is an inexpensive material and easy to manufacture.

[0049] Specifically, the left rear drive wire 42 is hinged to the piston 41 via a first hinge, and the right rear drive wire 43 is hinged to the piston 41 via a second hinge. The first and second hinges can be configured as pins. The left rear drive wire 42 and the piston 41 are hinged together via the first hinge frame. Movement of the piston 41 can change the angle between the piston 41 and the left rear drive wire 42 while pulling the left rear drive wire 42, preventing the piston 41 from jamming. The right rear drive wire 43 and the piston 41 are hinged together via the second hinge frame. Movement of the piston 41 can change the angle between the piston 41 and the right rear drive wire 43 while pulling the right rear drive wire 43, preventing the piston 41 from jamming.

[0050] In this embodiment, one handle 1 is provided on each of the left and right sides of the frame 5. That is, handle 1 is provided on both the left and right sides of the frame 5.

[0051] Specifically, the handlebars are fixed to the frame 5 using M6 bolts. The distributor valve 2 is fixed to the frame 5 using M6 bolts. The junction box 4 is fixed to the frame 5 using M6 bolts.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A braking linkage system, characterized in that, include: The handle (1) includes a gripping part (11) and a handbrake lever (12) hinged to the gripping part (11); The diverter valve (2) has a first valve core inside. The diverter valve (2) has a main oil port, a front diverter oil port (21) and a rear diverter oil port (22). The main oil port is connected to the oil tank. The handbrake lever (12) can drive the first valve core to move when rotated, so that the front diverter oil port (21) and the rear diverter oil port (22) are both connected to the main oil port. The front disc brake (3) is connected to the front disc brake (3) through the front outlet oil pipe (211). The junction box (4) has an inner cavity (401), and a piston (41) is provided in the inner cavity (401). The piston (41) is connected to a left rear drive wire (42) and a right rear drive wire (43). The rear oil outlet (22) communicates with the inner cavity (401). The left rear drum brake is connected to the left rear drive cable (42); The right rear drum brake is connected to the right rear drive cable (43).

2. The braking linkage system according to claim 1, characterized in that, The handbrake lever (12) is provided with a front drive wire (13), which is connected to the first valve core. The handbrake lever (12) can pull the front drive wire (13) when rotated, so that the front drive wire (13) drives the first valve core to move.

3. The braking linkage system according to claim 1, characterized in that, The gripping part (11) is provided with a drive valve, and the drive valve is provided with a second valve core. The second valve core is connected to the handbrake lever (12). The drive valve has an oil inlet and an oil outlet. The oil inlet is connected to the oil tank, and the oil outlet is connected to the diverter valve (2). When the handbrake lever (12) is rotated, it can drive the second valve core to move, so that the oil inlet and the oil outlet are connected. The oil in the oil tank enters the diverter valve (2) through the oil inlet and the oil outlet in sequence, pushing the first valve core to move.

4. The braking linkage system according to claim 1, characterized in that, The inner cavity (401) is provided with a sliding head (44), and the piston (41) is provided with a sliding elongated hole (411). The sliding head (44) is slidably connected to the sliding elongated hole (411).

5. The braking linkage system according to claim 1, characterized in that, The junction box (4) has a first through hole (402) and a second through hole (403). The left rear drive wire (42) passes through the first through hole (402) and is connected to the piston (41). The right rear drive wire (43) passes through the second through hole (403) and is connected to the piston (41).

6. The braking linkage system according to claim 5, characterized in that, Both the first perforation (402) and the second perforation (403) are provided with sealing rings (45).

7. The braking linkage system according to claim 6, characterized in that, The sealing ring (45) is made of rubber.

8. The braking linkage system according to claim 1, characterized in that, The left rear drive wire (42) is hinged to the piston (41) through the first hinge member, and the right rear drive wire (43) is hinged to the piston (41) through the second hinge member.

9. A tricycle, characterized in that, include: A frame (5) having a front wheel, a left rear wheel and a right rear wheel; According to any one of claims 1-8, the gripping part (11), the flow divider valve (2), the front disc brake (3), the junction box (4), the left rear drum brake, and the right rear drum brake are all mounted on the frame (5). The front disc brake (3) is used to brake the front wheel, the left rear drum brake is used to brake the left rear wheel, and the right rear drum brake is used to brake the right rear wheel.

10. The tricycle according to claim 9, characterized in that, One handle (1) is provided on each of the left and right sides of the frame (5).

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