Oil brake braking system of electro-tricycle

Abstract

The utility model relates to an electro-tricycle oil brake braking system which comprises a foot brake assembly, a brake reset spring, a foot brake pull rod, a parking device, a hand brake cable, a rocker brake assembly, a hand brake reset spring, a brake master cylinder and a rear axle. The rear axle comprises a brake oil pipe, a first hand brake cable, a second hand brake cable, a first oil brake assembly and a second oil brake assembly. The rocker brake assembly comprises an oil brake unit and a parking unit, the oil brake unit comprises a main sleeve, a first rocker arm, a first supporting sleeve, a second supporting sleeve, a second rocker arm, a first positioning sleeve, a second positioning sleeve and a third supporting sleeve, and a through hole is formed in the main sleeve; the first supporting sleeve and the second supporting sleeve are arranged at the two ends of the main casing pipe, matched with the main casing pipe in a rotating mode and fixedly arranged on a vehicle frame. The braking device is simple and compact in structure, easy to install and maintain, good in braking effect, high in safety and capable of being used for light loads.

Description

Technical Field

[0001] The utility model relates to the field of electric tricycles, and in particular to an oil brake system for an electric tricycle. Background Art

[0002] Electricity is an important energy source that is environmentally friendly, clean, and has a high conversion rate. It is widely used in production and life. Using electricity to drive the replacement of transportation vehicles, promote the low-carbon development of the transportation industry, reduce transportation costs, save energy, and protect the environment is one of the important research topics in countries around the world. After decades of development, electric tricycles, with their strong applicability, maneuverability, simple maintenance, easy repair, and low price, are widely used in short-distance transportation fields such as families, urban and rural areas, individual rentals, factories, mining areas, sanitation, and community cleaning.

[0003] With the widespread popularity of electric tricycles, safety, practicality and comfort have also become research topics for major manufacturers. In the existing technology, oil brakes have been widely used in heavy-duty vehicles, small trucks and family cars. As an emerging industry, electric tricycles mostly use mechanical pull-rod brakes in the existing technology, that is, pull-rods pull drum brakes or mechanical disc brakes. Due to comfort issues, most existing electric tricycles use rear axles with spring steel plates and soft connections. Although this setting improves comfort, the rear axle will produce displacement when loading cargo, which seriously causes the brakes to be too tight or too loose during driving, or even locked or no brakes, seriously affecting safety.

[0004] Because the existing technology has poor braking effect and low safety.

[0005] Therefore, there is an urgent need for an electric tricycle oil brake system to solve a series of problems such as poor braking effect and low safety when the electric tricycle is traveling. Summary of the Invention

[0006] The purpose of the present invention is to provide an oil brake system for an electric tricycle in order to solve the above problems in the prior art.

[0007] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0008] An oil brake system for an electric tricycle includes a frame 1, a foot brake assembly 2, a brake return spring 3, a front brake line 4, a foot brake lever 5, a parking device 6, a hand brake line 7, a rocker brake assembly 8, a hand brake return spring 9, a brake master cylinder 10, a rear axle 11, a right rear wheel 12, a left rear wheel 13, a front wheel 14, and a front brake assembly 15. The rear axle 11 includes a brake oil pipe 1101, a first hand brake line 1102, a second hand brake line 1103, a first oil brake assembly 1104, and a second oil brake assembly 1105. The foot brake assembly 2 includes a foot brake plate 201, a foot brake bend 202, The foot brake rocker arm 203, the foot brake sleeve 204 and the foot brake shaft 205, the foot brake bend 202 is provided with the foot brake plate 201 at one end and the foot brake sleeve 204 at the other end, and the foot brake rocker arm 203 is radially and perpendicularly arranged at the connection between the foot brake sleeve 204 and the foot brake bend 202, the foot brake sleeve 204 has a through hole inside, the foot brake shaft 205 is rotatably matched with the foot brake sleeve 204 and is fixed on the frame 1, the rocker brake assembly 8 includes an oil brake unit and a parking unit, the oil brake unit includes a main sleeve 800, a first rocker arm 801, a first support sleeve 80 2. The second support sleeve 803, the second rocker arm 804, the first positioning sleeve 805, the second positioning sleeve 806, the third support sleeve 807, the main sleeve 800 has a through hole inside, the first support sleeve 802 and the second support sleeve 803 are arranged at both ends of the main sleeve 800 and rotate with it and are fixed on the frame 1, the first rocker arm 801 is fixed on the outer wall of the main sleeve and is hingedly connected to the foot brake rod 5 to the foot brake assembly 2, the second rocker arm 804 is fixed on the outer wall of the main sleeve 800 and is connected to the brake master cylinder 10, the The parking unit includes a parking synchronization shaft 808, a first handbrake rocker arm 809, and a second handbrake rocker arm 810. The first handbrake rocker arm 809 and the second handbrake rocker arm 810 are fixed at both ends of the parking synchronization shaft 808 and are placed in the through hole of the main sleeve 800 and rotate with it. The first handbrake rocker arm 809 is connected to the parking device 6 and the first handbrake line 1102 to the first oil brake assembly 1104 respectively with the handbrake line 7, and the second handbrake rocker arm 810 and the second handbrake line 1103 are connected to the second oil brake assembly 1105.

[0009] Preferably, the foot brake assembly 2 is hingedly connected in sequence to the foot brake lever 5 to the oil brake unit to the master brake cylinder 10 for linkage.

[0010] Preferably, one end of the brake return spring 3 is connected to the foot brake assembly 2 and the other end is connected to the vehicle frame 1 .

[0011] Preferably, the parking device 6 sequentially connects the handbrake line 7 to the parking unit to the first handbrake line 1102 to the first oil brake assembly 1104 and the second handbrake line 1103 to the second oil brake assembly 1105 for synchronous linkage.

[0012] Preferably, one end of the handbrake return spring 9 is connected to the first handbrake rocker arm 809 and the other end is connected to the vehicle frame 1 .

[0013] Preferably, the master brake cylinder 10 and the brake oil pipe 1101 are connected to the first oil brake assembly 1104 and the second oil brake assembly 1105 .

[0014] Preferably, the first oil brake assembly 1104 and the second oil brake assembly 1105 are provided with a hydraulic slave pump, a friction plate and a hand brake device. When the master brake cylinder 10 is actuated, the hydraulic slave pump connected to the first oil brake assembly 1104 and the second oil brake assembly 1105 drives the friction plate to brake synchronously. When the parking unit is actuated, the hand brake device brakes synchronously.

[0015] Preferably, the first positioning sleeve 805 and the first supporting sleeve 802 and the second positioning sleeve 806 and the second supporting sleeve 803 are symmetrically matched to fix and limit positions to prevent the main sleeve 800 from axially moving.

[0016] Working principle and beneficial effects: Compared with the existing technology, this application adopts an oil brake system with good braking effect and high safety. The rear axle handbrake line is symmetrically distributed on both sides of the frame, which is more beautiful and easier to maintain.

[0017] Compared with the prior art, the present invention has a simple and compact structure, is easy to install and maintain, has a good braking effect, and is highly safe, thereby solving the problems of poor braking effect and low safety in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is a schematic diagram of a rocker brake assembly of the present invention.

[0019] FIG2 is a schematic diagram of the oil brake unit of the present invention.

[0020] FIG3 is a schematic diagram of a parking unit according to the present invention.

[0021] FIG4 is a schematic diagram of the first rocker arm of the present invention.

[0022] FIG5 is a schematic diagram of the second rocker arm of the present invention.

[0023] FIG6 is a schematic diagram of a first handbrake rocker arm of the present invention.

[0024] FIG7 is a schematic diagram of a second handbrake rocker arm of the present invention.

[0025] FIG8 is a schematic diagram of the foot brake assembly of the present invention.

[0026] FIG9 is a front view of an installation embodiment of the present invention.

[0027] FIG. 10 is a rear view of an installation embodiment of the present invention.

[0028] FIG11 is a top view of an installation embodiment of the present invention.

[0029] In the figure, 1. Frame; 2. Footbrake assembly; 3. Brake return spring; 4. Front brake cable; 5. Footbrake lever; 6. Parking lever; 7. Handbrake cable; 8. Rocker brake assembly; 9. Handbrake return spring; 10. Master brake cylinder; 11. Rear axle; 1101. Brake oil pipe; 1102. First handbrake cable; 1103. Second handbrake cable; 1104. First oil brake assembly; 1105. Second oil brake assembly; 12. Right rear wheel; 13. Left rear wheel; 14. Front wheel; 15. Front brake assembly; 800. Main sleeve; 801. First rocker arm; 802. First support sleeve; 803. Second support sleeve; 804. Second rocker arm; 805. First positioning sleeve; 806. Second positioning sleeve; 807. Third support sleeve; 808. Parking synchronization shaft; 809. First handbrake rocker arm; 810. Second handbrake rocker arm; 201. Foot brake plate; 202. Foot brake bend; 203. Foot brake rocker arm; 204. Foot brake sleeve; 205. Foot brake shaft. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of the present invention.

[0031] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0032] As shown in Figures 1, 9, 10 and 11, the oil brake system of the electric tricycle includes a frame 1, a foot brake assembly 2, a brake return spring 3, a front brake line 4, a foot brake lever 5, a parking device 6, a hand brake line 7, a rocker brake assembly 8, a hand brake return spring 9, a brake master cylinder 10, a rear axle 11, a right rear wheel 12, a left rear wheel 13, a front wheel 14, and a front brake assembly 15. The rear axle 11 includes a brake oil pipe 1101, a first hand brake line 1102, a second hand brake line 1103, a first oil brake assembly 1104 and a second oil brake assembly 1105. The foot brake assembly 2 includes a foot brake plate 201 and a foot brake bend 202. , a foot brake rocker arm 203, a foot brake sleeve 204 and a foot brake shaft 205, one end of the foot brake bend 202 is provided with the foot brake plate 201 and the other end is provided with the foot brake sleeve 204 and the foot brake rocker arm 203 is radially and perpendicularly arranged at the connection between the foot brake sleeve 204 and the foot brake bend 202, the interior of the foot brake sleeve 204 is a through hole, the foot brake shaft 205 is rotatably matched with the foot brake sleeve 204 and is fixedly arranged on the frame 1, the rocker brake assembly 8 includes an oil brake unit and a parking unit, the oil brake unit includes a main sleeve 800, a first rocker arm 801, a first support sleeve 8 02, the second support sleeve 803, the second rocker arm 804, the first positioning sleeve 805, the second positioning sleeve 806, the third support sleeve 807, the main sleeve 800 has a through hole inside, the first support sleeve 802 and the second support sleeve 803 are arranged at both ends of the main sleeve 800 and rotate with it and are fixed on the frame 1, the first rocker arm 801 is fixed on the outer wall of the main sleeve and is hingedly connected to the foot brake rod 5 to the foot brake assembly 2, the second rocker arm 804 is fixed on the outer wall of the main sleeve 800 and is connected to the brake master cylinder 10, The parking unit includes a parking synchronization shaft 808, a first handbrake rocker arm 809, and a second handbrake rocker arm 810. The first handbrake rocker arm 809 and the second handbrake rocker arm 810 are fixed at both ends of the parking synchronization shaft 808 and are placed in the through hole of the main sleeve 800 and rotate with it. The first handbrake rocker arm 809 is respectively connected to the parking device 6 and the first handbrake line 1102 to the first oil brake assembly 1104 through the handbrake line 7. The second handbrake rocker arm 810 and the second handbrake line 1103 are connected to the second oil brake assembly 1105.

[0033] Specifically, the foot brake assembly 2 is hingedly connected in sequence to the foot brake lever 5 to the oil brake unit to the master brake cylinder 10 for linkage.

[0034] Specifically, one end of the brake return spring 3 is connected to the foot brake assembly 2 and the other end is connected to the vehicle frame 1 .

[0035] Specifically, the parking device 6 sequentially connects the handbrake line 7 to the parking unit to the first handbrake line 1102 to the first oil brake assembly 1104 and the second handbrake line 1103 to the second oil brake assembly 1105 for synchronous linkage.

[0036] Specifically, one end of the handbrake return spring 9 is connected to the first handbrake rocker arm 809 and the other end is connected to the vehicle frame 1 .

[0037] Specifically, the master brake cylinder 10 and the brake oil pipe 1101 are connected to the first oil brake assembly 1104 and the second oil brake assembly 1105 .

[0038] In this embodiment, the rear axle oil port connection section of the brake oil pipe 1101 adopts a hard pipe and the brake master cylinder outlet section adopts a high-pressure hydraulic hose for transition connection. This setting can reduce the rear axle displacement and vibration to generate the brake oil pipe failure rate and improve safety.

[0039] Specifically, the first oil brake assembly 1104 and the second oil brake assembly 1105 are provided with a hydraulic slave pump, a friction plate and a hand brake device. When the master brake cylinder 10 is actuated, the hydraulic slave pump connected to the first oil brake assembly 1104 and the second oil brake assembly 1105 drives the friction plate to brake synchronously. When the parking unit is actuated, the hand brake device brakes synchronously.

[0040] Specifically, the first positioning sleeve 805 and the first supporting sleeve 802 and the second positioning sleeve 806 and the second supporting sleeve 803 are symmetrically matched to fix and limit positions, thereby preventing the main sleeve 800 from axially moving.

[0041] In this embodiment, the rear axle 11, the foot brake assembly 2, the master brake cylinder 10, and the parking device 6 are all existing technology products and can be purchased directly from the market. Therefore, their internal structures and principles are also existing technologies and will not be described in detail here. This application utilizes their functions and characteristics.

[0042] Specifically, in combination with the embodiment shown in Figures 9, 10 and 11, the components are installed on the vehicle frame in sequence. When the foot brake pedal 201 of the brake assembly 2 is stepped on, the force transmitted by the brake rod 5 pulls the rocker brake assembly 2 oil brake unit to the master brake cylinder 10 to convert mechanical energy into fluid energy and pump oil to the rear axle oil brake assembly to brake, and vice versa, it is reset by the brake return spring 3. When the parking device 6 is pulled to act, the force transmitted by the handbrake line 7 pulls the rocker brake assembly 2 parking unit to the first handbrake line and the second handbrake line to act, thereby to the rear axle oil brake assembly to brake, and vice versa, it is reset by the handbrake return spring 9.

[0043] The parts not described in detail in the present invention are prior art, so the present invention does not describe them in detail.

[0044] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0045] Although this article uses more 1, frame; 2, foot brake assembly; 3, brake return spring; 4, front brake cable; 5, foot brake lever; 6, parking device; 7, handbrake cable; 8, rocker brake assembly; 9, handbrake return spring; 10, brake master cylinder; 11, rear axle; 1101, brake oil pipe; 1102, first handbrake cable; 1103, second handbrake cable; 1104, first oil brake assembly; 1105, second oil brake assembly; 12, right rear wheel; 13, left rear wheel; 14, front wheel; 15, front brake assembly The present invention is described herein with reference to the following terms: 800, main sleeve; 801, first rocker arm; 802, first support sleeve; 803, second support sleeve; 804, second rocker arm; 805, first positioning sleeve; 806, second positioning sleeve; 807, third support sleeve; 808, parking synchronization shaft; 809, first handbrake rocker arm; 810, second handbrake rocker arm; 201, footbrake plate; 202, footbrake bend; 203, footbrake rocker arm; 204, footbrake sleeve; 205, footbrake shaft, etc., but the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

[0046] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that is the same or similar to that of the present application falls within the scope of protection of the present invention.

Claims

1. An oil brake system for an electric tricycle, comprising a foot brake assembly (2), a foot brake lever (5), a parking device (6), a hand brake line (7), a brake master cylinder (10), and a rear axle (11), wherein the rear axle (11) comprises a brake oil pipe (1101), a first hand brake line (1102), a second hand brake line (1103), a first oil brake assembly (1104), and a second oil brake assembly (1105), characterized in that: Also includes: A rocker brake assembly (8), the rocker brake assembly (8) includes an oil brake unit and a parking unit, the oil brake unit includes a main sleeve (800), a first rocker arm (801), a first support sleeve (802), a second support sleeve (803), and a second rocker arm (804), the interior of the main sleeve (800) is a through hole, the first support sleeve (802) and the second support sleeve (803) are arranged at both ends of the main sleeve (800) and are rotatably matched with the main sleeve and fixedly arranged on the vehicle frame (1), the first rocker arm (801) is fixedly arranged on the outer wall of the main sleeve (800) and is hingedly connected to the foot brake lever (5) to the foot brake assembly (2), the second rocker arm (804) is fixedly arranged on the main sleeve (800), and the second rocker arm (804) is fixedly arranged on the main sleeve (800). 00) on the outer wall and connected to the master brake cylinder (10), the parking unit includes a parking synchronization shaft (808), a first handbrake rocker arm (809), and a second handbrake rocker arm (810), the first handbrake rocker arm (809) and the second handbrake rocker arm (810) are fixedly provided at both ends of the parking synchronization shaft (808) and are placed in the through hole of the main sleeve (800) and rotated therewith, the first handbrake rocker arm (809) and the handbrake line (7) are respectively connected to the parking device (6) and the first handbrake line (1102) to the first oil brake assembly (1104), and the second handbrake rocker arm (810) and the second handbrake line (1103) are connected to the second oil brake assembly (1105).

2. The oil brake system for electric tricycle according to claim 1, characterized in that: The foot brake assembly (2) is hingedly connected in sequence to the foot brake lever (5) to the oil brake unit to the master brake cylinder (10) for linkage.

3. The oil brake system for electric tricycle according to claim 1, characterized in that: The parking device (6) sequentially connects the handbrake line (7) to the parking unit to the first handbrake line (1102) to the first oil brake assembly (1104) and the second handbrake line (1103) to the second oil brake assembly (1105) for synchronous linkage.

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