Tricycle rear wheel linkage brake mechanism

Abstract

The utility model relates to a tricycle rear wheel linkage brake mechanism, including linkage mechanism casing, rear wheel oil way interface one and rear wheel oil way interface two, linkage mechanism casing both sides respectively set up rear wheel oil way interface one and rear wheel oil way interface two, set up two parallel oil cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of braking device technology, specifically a three-wheeled vehicle rear wheel linkage braking mechanism. Background Technology

[0002] Currently, the braking system of existing tricycles mainly uses steel wire ropes to control the brake pads in the wheel hub to rub against the wheel hub, thus producing a braking effect. This design is inexpensive and easy to produce. However, due to the long travel of the steel wire ropes, the braking system is not sensitive enough during the vehicle's operation. Especially in poor road conditions and at high speeds, the braking distance is long and the braking effect is poor, which has a significant impact on the service life of the vehicle, passenger comfort, and safety.

[0003] Currently, utility model patent CN203612161U discloses a three-wheeled motorcycle's combined braking control device, including a brake distribution shaft with several distribution shaft mounting plates. The brake distribution shaft is horizontally mounted on the bottom of the three-wheeled vehicle via these mounting plates. A left rear wheel brake swing arm and a right rear wheel brake swing arm are respectively located at the left and right ends of the brake distribution shaft. From right to left, a foot brake swing arm and a front wheel brake swing arm are sequentially provided on the brake distribution shaft. The front wheel brake swing arm is connected to the front wheel brake of the three-wheeled vehicle via a front wheel brake cable. The left and right rear wheel brake swing arms are respectively connected to the rear wheel brake of the three-wheeled vehicle via two rear wheel brake levers. The foot brake swing arm is connected to the foot brake pedal via a foot brake lever. The beneficial effect is that the front and rear wheel braking mechanisms of the three-wheeled motorcycle are integrated on the brake distribution shaft. When braking, only the foot brake pedal needs to be pressed, and the front and rear wheels of the three-wheeled motorcycle brake synchronously with the same braking force, resulting in good braking performance.

[0004] As can be seen from the above-disclosed technical content, as prior art, the utility model with announcement number CN203612161U integrates the front wheel brake and rear wheel brake operating mechanisms of a three-wheeled motorcycle onto the brake distribution shaft. When braking, there is no need to use hands and feet to brake the front and rear wheels separately. Only the foot brake pedal needs to be pressed. The foot brake pedal drives the rear wheel brake of the three-wheeled motorcycle through the rear wheel brake lever and drives the front wheel brake of the three-wheeled motorcycle through the front wheel brake cable. The front and rear wheels of the three-wheeled motorcycle brake synchronously and with the same braking force, resulting in good braking effect. However, the brake distribution shaft of this patent is set at the bottom of the three-wheeled motorcycle through the distribution shaft mounting plate. It occupies a large space and the installation steps are complicated. At the same time, when the brake distribution shaft rotates during the installation, long-term friction will generate metal debris, which will create a gap between the brake distribution shaft and the distribution shaft mounting plate, affecting the timeliness of braking. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a rear wheel linkage braking mechanism for tricycles, which can effectively improve braking performance and safety, and can effectively increase the service life of the braking system and passenger comfort.

[0006] To achieve the above objectives, this utility model provides a rear wheel linkage braking mechanism for a tricycle, comprising a linkage mechanism housing, a rear wheel oil circuit interface one, and a rear wheel oil circuit interface two. The linkage mechanism housing has rear wheel oil circuit interface one and rear wheel oil circuit interface two respectively on both sides. Two parallel hydraulic cylinders, cylinder one and cylinder two, are installed inside the linkage mechanism housing. Cylinder one and cylinder two are connected to a sliding cavity. The bottom of cylinder one is connected to rear wheel oil circuit interface one, and the bottom of cylinder two is connected to rear wheel oil circuit interface two. A piston one is installed in cylinder one, and a piston two is installed in cylinder two. The ends of piston one and piston two are fixedly connected to a piston control block in the sliding cavity. A return spring one and a return spring two are respectively installed at the front and rear of the middle of the piston control block. One end of a control terminal is fixedly connected to the surface of the piston control block, and the control terminal passes through the return spring and extends out of the linkage mechanism housing.

[0007] In addition, the three-wheeled vehicle rear wheel linkage braking mechanism proposed in the above embodiments of this utility model may also have the following additional technical features:

[0008] As a further improvement of this utility model, both piston one and piston two are equipped with piston rubber rings.

[0009] As a further improvement of this utility model, a through hole is provided on the side of the piston control block.

[0010] As a further improvement of this utility model, the rear wheel oil circuit interface one and the rear wheel oil circuit interface two adopt threaded interfaces.

[0011] As a further improvement of this utility model, the control terminal is connected to the piston control block by thread or welding.

[0012] By means of the above solution, this utility model has at least the following advantages: compared with conventional tricycle braking devices, by adding a tricycle rear wheel linkage braking mechanism between the brake pedal and the rear wheel, and driving the brake caliper with the help of a hydraulic mechanism, the braking effect and safety can be effectively improved, and the service life of the braking system and passenger comfort can be effectively improved. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the rear wheel linkage braking mechanism of a tricycle;

[0014] Figure 2 This is a structural diagram of the rear wheel linkage braking mechanism of a tricycle;

[0015] In the diagram: 1. Linkage mechanism housing, 2. Rear wheel oil circuit interface one, 3. Rear wheel oil circuit interface two, 4. Control terminal, 5. Oil cylinder one, 6. Oil cylinder two, 7. Piston one, 8. Piston two, 9. Piston control block, 10. Return spring one, 11. Return spring two, 12. Sliding cavity. Detailed Implementation

[0016] The following description, in conjunction with the accompanying drawings, describes the rear wheel linkage braking mechanism of this utility model for a tricycle.

[0017] In Embodiment 1 of this application, as Figure 1 and Figure 2 As shown, the rear wheel linkage braking mechanism of this tricycle (hereinafter referred to as "the present invention") includes a linkage mechanism housing 1, a rear wheel oil circuit interface 2, and a sliding cavity 12. The linkage mechanism housing 1 has a rear wheel oil circuit interface 2 and a rear wheel oil circuit interface 3 on both sides. Two parallel cylinders, cylinder 5 and cylinder 6, are installed inside the linkage mechanism housing 1. Cylinder 5 and cylinder 6 are connected to the sliding cavity 12. The bottom of cylinder 5 is connected to the rear wheel oil circuit interface 2, and the bottom of cylinder 6 is connected to the rear wheel oil circuit interface 3. A piston 7 is installed in cylinder 5, and a piston 8 is installed in cylinder 6. The ends of piston 7 and piston 8 are fixedly connected to a piston control block 9 in the sliding cavity 12. A return spring 10 and a return spring 21 are respectively installed at the front and rear of the middle of the piston control block 9. One end of a control terminal 4 is fixedly connected to the surface of the piston control block 9. The control terminal 4 passes through the return spring 21 and extends out of the linkage mechanism housing 1.

[0018] The utility model patent CN203612161U discloses a three-wheeled motorcycle with a combined braking control device (hereinafter referred to as "the patent"). This patent integrates the front and rear wheel braking mechanisms of the three-wheeled motorcycle onto a brake distribution shaft. During braking, it eliminates the need for separate hand and foot braking of the front and rear wheels; simply pressing the foot brake pedal activates the rear wheel brake via the rear wheel brake lever, and the front wheel brake via the front wheel brake cable. The braking of the front and rear wheels of the three-wheeled motorcycle is synchronized and exerts the same braking force. While the effect is good, the brake distribution shaft of this patent is set at the bottom of the tricycle through the distribution shaft mounting plate, which occupies a large space and has a complicated installation process. At the same time, when the brake distribution shaft rotates during installation, long-term friction will generate metal debris, which will create a gap between the brake distribution shaft and the distribution shaft mounting plate, affecting the braking timeliness. In contrast, this invention adds a rear wheel linkage braking mechanism between the brake pedal and the rear wheel of the tricycle, and drives the brake caliper with a hydraulic mechanism, which can effectively improve the braking effect and safety, and can effectively improve the service life of the braking system and the comfort of the passengers.

[0019] To further optimize the working efficiency and extend the service life of this application, both piston 7 and piston 8 are equipped with piston rubber rings. To prevent air in the sliding cavity 12 from affecting the movement of the piston control block 9, a through hole is provided on the side of the piston control block 9. For easy disassembly and assembly, the rear wheel oil circuit interface 2 and the rear wheel oil circuit interface 3 are threaded interfaces. To make the installation more stable, the control terminal 4 is connected to the piston control block 9 by thread or welding.

[0020] When in use, install the rear wheel linkage braking mechanism of the tricycle, connect the control lever of the brake pedal to the control terminal 4, and then connect the rear wheel oil circuit interface 1 2 and the rear wheel oil circuit interface 2 3 to the brake calipers on the rear wheel through oil pressure lines. The equipment is then ready for use.

[0021] The equipment can also be equipped with a third hydraulic cylinder and a third piston. The third piston is also connected to the piston control block 9. The three hydraulic cylinders are arranged in a triangular pattern. The control terminal 4 is connected to the center of the piston control block 9. The third hydraulic cylinder is equipped with a front wheel hydraulic circuit interface, which is connected to the front wheel brake caliper through a hydraulic line, allowing the device to control the braking of both the front and rear wheels simultaneously. This effectively improves braking efficiency.

[0022] The housing 1 of the linkage mechanism has a reserved hydraulic oil loading and unloading port, which is sealed with a threaded cap.

[0023] When this utility model is used, its specific operation is as follows:

[0024] When in use, pressing the brake pedal pulls the control terminal 4, which in turn pulls the piston control block 9. The piston control block 9 compresses piston 7 and piston 8, compressing the hydraulic oil in cylinders 5 and 6. The hydraulic pressure then drives the brake caliper to close through the pipeline, achieving braking. After releasing the brake, the return spring 10 contracts and the return spring 21 extends, causing the piston control block 9 to reset. The piston control block 9 then drives piston 7 and piston 8 to reset, thereby resetting the rear wheel caliper.

[0025] In summary, the three-wheeled rear wheel linkage braking mechanism of this utility model embodiment, by adding a three-wheeled rear wheel linkage braking mechanism between the brake pedal and the rear wheel, and using a hydraulic mechanism to drive the brake caliper, can effectively improve braking performance and safety, and can effectively improve the service life of the braking system and passenger comfort.

[0026] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A linkage brake mechanism for a rear wheel of a tricycle comprising a linkage housing (1), characterised in that, The linkage mechanism housing (1) has a rear wheel oil circuit interface 1 (2) and a rear wheel oil circuit interface 2 (3) on both sides. Two parallel oil cylinders 1 (5) and 2 (6) are installed inside the linkage mechanism housing (1). Oil cylinders 1 (5) and 2 (6) are connected to the sliding cavity (12). The bottom of oil cylinder 1 (5) is connected to the rear wheel oil circuit interface 1 (2), and the bottom of oil cylinder 2 (6) is connected to the rear wheel oil circuit interface 2 (3). Piston 1 (7) is installed in oil cylinder 1 (5), and piston 2 (8) is installed in oil cylinder 2 (6). The ends of piston 1 (7) and piston 2 (8) are fixedly connected to the piston control block (9) in the sliding cavity (12). Reset spring 1 (10) and reset spring 2 (11) are respectively installed at the front and rear of the middle part of piston control block (9). One end of control terminal (4) is fixedly connected to the surface of piston control block (9). Control terminal (4) passes through reset spring 2 (11) and extends out of linkage mechanism housing (1).

2. The three-wheeled vehicle rear wheel linkage braking mechanism according to claim 1, characterized in that, Both piston one (7) and piston two (8) are equipped with piston rubber rings.

3. The three-wheeled vehicle rear wheel linkage braking mechanism according to claim 2, characterized in that, The piston control block (9) has a through hole on its side.

4. The three-wheeled vehicle rear wheel linkage braking mechanism according to claim 1, characterized in that, The rear wheel oil circuit interface 1 (2) and the rear wheel oil circuit interface 2 (3) are threaded interfaces.

5. The three-wheeled vehicle rear wheel linkage braking mechanism according to claim 4, characterized in that, The control terminal (4) is connected to the piston control block (9) by thread or welding.

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