An oil brake electric tricycle device capable of starting two systems complementary brakes in emergency

Abstract

The utility model relates to electric tricycle technical field, and disclose a kind of oil brake electric tricycle device of emergency starting double system complementary brake, brake pedal drives brake lever, front brake axle rotation, and it is passed to rear brake axle by first foot brake rocker arm, linkage pull rod, second foot brake rocker arm transmission, brake is realized by brake rocker arm acting on rear axle;In sub-brake assembly, sub-brake pull rod is pushed support plate by connecting rod, inner rocker arm, brake pad support is opened brake around connecting axle seat, double system complementary solves the emergency braking problem of main brake failure, and sub-brake has no travel switch design to eliminate half slope start to slip car hidden danger, improves driving safety and control convenience.

Description

Technical Field

[0001] This utility model relates to the field of electric tricycle technology, specifically to a hydraulic brake electric tricycle device that can be activated in an emergency with dual-system complementary braking. Background Technology

[0002] In the field of electric three-wheeled freight motorcycles, the braking system is a core component ensuring driving safety. It enables the vehicle to decelerate or stop through the braking mechanism, improving handling safety during driving and is widely used in logistics transportation, daily travel, and other scenarios. Its core function is to achieve the braking effect through the linkage of braking components, utilizing friction or hydraulic transmission, while meeting the requirements for braking efficiency and response speed under different road conditions.

[0003] In practical applications, the braking system of an electric three-wheeled freight motorcycle typically includes the following key components:

[0004] 1. Main Braking System: As the main braking component, it includes the brake pedal, transmission mechanism (such as levers and hydraulic lines), and brake actuators (such as brake pads and wheel hubs), which achieve vehicle braking through driver operation.

[0005] 2. Limit switch: A circuit control component associated with the main brake pedal, used to control the connection and disconnection between the motor and the controller, ensuring that the motor stops working when braking and resumes operation when the brake is released.

[0006] 3. Braking transmission components: including rocker arms, brake levers, etc., are used to transmit the force of the brake pedal to the brake actuators, realizing the transmission of force and triggering of braking action.

[0007] 4. Frame and supporting components: Provide the mounting base for all components of the braking system, ensuring the stability and coordination of each component during braking.

[0008] Currently, various technical solutions have been adopted in the industry to realize the braking function of electric three-wheeled freight motorcycles. Some vehicles use a common lever brake structure, which achieves braking through lever transmission; other models use a hydraulic oil brake system, which uses oil pressure to improve the braking effect; and there are also devices that achieve linkage control of the motor through the cooperation of limit switches and brake pedal.

[0009] However, the above-mentioned implementation methods still have the following problems: during the operation of electric three-wheeled freight motorcycles, ordinary lever brakes suffer from insufficient tension and poor braking effect, while hydraulic oil brake systems are prone to failure due to their complex structure; at the same time, there is a time difference in the return of the limit switch and the main brake pedal, which can easily cause the vehicle to roll away in special road conditions such as slopes, making it difficult to start on a hill, thus affecting driving safety and convenience. In response to the above problems, this application proposes an oil brake electric three-wheeled vehicle device that can start dual-system complementary braking in an emergency. While realizing dual-system complementary braking and solving the emergency braking problem, it effectively addresses the problem of starting on a hill, providing a better solution for the safe operation of electric three-wheeled freight motorcycles. Utility Model Content

[0010] To address the shortcomings of existing technologies, a hydraulic brake electric tricycle device with dual-system complementary braking that can be activated in an emergency is proposed. This device not only achieves dual-system complementary braking and solves the emergency braking problem, but also effectively addresses the challenge of starting on a slope, providing a better solution for the safe operation of electric tricycle freight motorcycles.

[0011] To achieve the aforementioned objectives, this utility model provides the following technical solution: a hydraulic brake electric tricycle device capable of emergency-starting dual-system complementary braking, comprising a front brake axle, bearings fitted at both ends of the front brake axle, and a connecting bracket fixedly mounted on one side of each bearing; a bent brake lever fixedly mounted on one side of the front brake axle, and a brake pedal fixedly mounted on the other end of the brake lever; a first foot brake rocker arm for connection fixedly mounted on the front brake axle, the first foot brake rocker arm having a through hole through which a linkage rod for linkage is inserted; the other end of the linkage rod being inserted into a second foot brake rocker arm, the second foot brake rocker arm being fixedly mounted on a rear brake axle; brake rockers for braking connection fixedly mounted at both ends of the rear brake axle; and a plurality of connecting brackets for connection equidistantly fitted on the rear brake axle, further comprising:

[0012] The auxiliary brake assembly includes a brake wall plate, a brake pad bracket, a connecting shaft seat, and an adjusting component. The connecting shaft seat is fixedly installed on the inner wall surface of the brake wall plate. There are two sets of brake pad brackets, and one end of each brake pad bracket is hinged to the connecting shaft seat. The other ends of the two sets of brake pad brackets are connected together through the adjusting component.

[0013] The adjusting component is hollow, and adjusting rods are installed at both ends of the inner wall of the adjusting component. The adjusting component also has adjusting thread grooves inside. The two sets of adjusting rods are threaded together at one end inside the adjusting component, and the other ends of the two sets of adjusting rods are fixedly connected to the ends of the two sets of brake pad brackets respectively.

[0014] A support plate is also snapped between the two sets of brake pad brackets. A side slot is provided on one side of the support plate. An inner rocker arm is hinged to one set of brake pad brackets by a screw. An abutment groove is provided on the side of the inner rocker arm corresponding to the side slot. The abutment groove fits into the side slot.

[0015] The other end of the inner rocker arm has a rocker arm bend for connection, and the brake wall plate has a secondary brake hole for connection at the position corresponding to the rocker arm bend.

[0016] A connecting rod is fitted onto the bent rocker arm, and one end of the connecting rod extends through the auxiliary brake hole to the outside of the brake wall plate.

[0017] The end of the connecting rod is snapped with a secondary brake lever, and the other end of the secondary brake lever is snapped together with the second foot brake rocker arm on the side of the rear brake shaft.

[0018] Compared with the prior art, this utility model provides a hydraulic brake electric tricycle device that can be activated in an emergency with dual-system complementary braking, which has the following advantages:

[0019] 1. The secondary braking system enhances driving safety: When the secondary brake needs to be activated, pressing the brake pedal transmits the force to the connecting rod via the secondary brake lever. The connecting rod is connected to the rocker arm of the inner rocker arm by bending, causing the inner rocker arm to rotate. The inner rocker arm engages with the side slot of the support plate through its own contact groove, pushing the support plate to move. The support plate then causes the two sets of brake pad brackets to rotate and open around the connecting shaft seat, so that the brake pads contact the wheel hub to generate friction and achieve braking. During this process, the secondary brake lever engages with the second foot brake rocker arm of the rear brake axle, and the inner rocker arm is hinged to the brake pad bracket. The close linkage between the various structures forms an independent and reliable braking path, providing additional braking protection for vehicle driving. In case of emergencies, it can quickly respond to achieve braking and effectively improve driving safety.

[0020] 2. Flexible and adjustable brake pad clearance: The adjusting rods at both ends of the adjusting component are connected to two sets of brake pad brackets, and the adjusting rods are threadedly connected to the adjusting thread groove inside the adjusting component. When it is necessary to adjust the brake clearance, rotate the adjusting component, and the adjusting thread groove drives the two sets of adjusting rods to extend and retract synchronously, thereby pulling or pushing the brake pad bracket to rotate around the connecting shaft seat, changing the opening range of the brake pad bracket. This linkage structure allows the brake clearance to be flexibly adjusted according to the wear degree of the brake pads, ensuring that the brake pads and the wheel hub always maintain a reasonable contact distance, ensuring the stability and consistency of the braking effect, and extending the service life of the brake pads and related components.

[0021] 3. The integrated linkage design of the secondary brake assembly enhances operational convenience and reliability: The secondary brake lever is snapped into the connecting rod, which is sleeved on the rocker arm bend. The inner rocker arm is hinged to the brake pad bracket via a screw, and simultaneously engages with the side slot of the support plate via an abutment groove. The support plate is snapped between the two sets of brake pad brackets, and the components form a complete force transmission chain. When the secondary brake is operated, the force is transmitted from the secondary brake lever through the connecting rod, the inner rocker arm, and the support plate to the brake pad bracket. The entire transmission path is clear and the linkage is smooth, making the secondary brake operation responsive and the force transmission stable. This linkage design not only makes the use of the secondary brake more convenient, but also provides stable braking assistance for vehicle start-up in special road conditions such as on a slope, avoiding operational jamming or failure, and significantly improving the convenience and reliability of driving control. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the side structure of this utility model;

[0024] Figure 3 This is a schematic diagram showing the disassembled structure of the auxiliary brake assembly of this utility model;

[0025] Figure 4 This is a schematic diagram of the support plate structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the adjusting component of this utility model;

[0027] Figure 6 This is a schematic diagram of the internal rocker arm structure of this utility model.

[0028] In the diagram: 1. Front brake shaft; 2. Bearing; 3. Connecting frame one; 4. Brake lever; 5. Brake pedal; 6. First foot brake rocker arm; 7. Through hole; 8. Linkage rod; 9. Second foot brake rocker arm; 10. Rear brake shaft; 11. Brake rocker arm; 12. Connecting frame two; 13. Brake wall plate; 14. Brake pad bracket; 15. Connecting shaft seat; 16. Adjusting component; 17. Adjusting rod; 18. Adjusting threaded groove; 19. Support plate; 20. Side slot; 21. Inner rocker arm; 22. Contact groove; 23. Rocker arm bend; 24. Secondary brake hole; 25. Connecting rod; 26. Secondary brake lever. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 An emergency-activated dual-system complementary braking hydraulic brake electric tricycle device includes a front brake axle 1, bearings 2 sleeved at both ends of the front brake axle 1, and a connecting bracket 3 fixedly installed on one side of each bearing 2. A bent brake lever 4 is fixedly installed on one side of the front brake axle 1, and a brake pedal 5 is fixedly installed at the other end of the brake lever 4. A first foot brake rocker arm 6 for connection is also fixedly installed on the front brake axle 1. The first foot brake rocker arm 6 has a through hole 7, and a linkage rod 8 for linkage is inserted into the through hole 7. The other end of the linkage rod 8 is inserted into a second foot brake rocker arm 9, and the second foot brake rocker arm 9 is fixedly installed on a rear brake axle 10. Brake rocker arms 11 for braking connection are fixedly installed at both ends of the rear brake axle 10. A plurality of connecting brackets 12 for connection are also equidistantly sleeved on the rear brake axle 10. The device also includes:

[0031] The auxiliary brake assembly includes a brake wall plate 13, a brake pad bracket 14, a connecting shaft seat 15, and an adjusting component 16. The connecting shaft seat 15 is fixedly installed on the inner wall of the brake wall plate 13. There are two sets of brake pad brackets 14, and one end of each brake pad bracket 14 is hinged to the connecting shaft seat 15. The other ends of the two sets of brake pad brackets 14 are connected together through the adjusting component 16. The front brake shaft 1 rotates stably through the bearing 2 and the connecting bracket 3. The brake pedal 5 drives the brake lever 4 to rotate the front brake shaft 1, which is then transmitted to the rear brake shaft 10 through the first foot brake rocker arm 6, the linkage rod 8, and the second foot brake rocker arm 9. The rear brake shaft 10 achieves braking through the brake rocker arm 11. In the auxiliary brake assembly, the brake pad bracket 14 uses the connecting shaft seat 15 as a fulcrum and is connected through the adjusting component 16 to achieve linkage, forming a complete braking transmission chain. The auxiliary brake assembly provides independent support for braking and lays the foundation for subsequent braking adjustment and linkage.

[0032] The adjusting component 16 is hollow, with adjusting rods 17 installed at both ends of its inner wall. The adjusting component 16 also has adjusting threaded grooves 18 inside. One end of each adjusting rod 17 inside the adjusting component 16 is threadedly connected to the adjusting threaded groove 18, and the other end of each adjusting rod 17 is fixedly connected to the ends of two sets of brake pad supports 14. When the adjusting component 16 is rotated, the adjusting threaded groove 18 drives the adjusting rods 17 at both ends to move axially, thereby changing the relative distance between the two sets of brake pad supports 14. Flexible adjustment of the braking clearance is achieved through threaded transmission, adapting to different brake pad wear conditions, ensuring stable contact between the brake pads and the wheel hub during braking, and extending the service life of the device.

[0033] A support plate 19 is also snapped between the two sets of brake pad brackets 14. A side slot 20 is provided on one side of the support plate 19. An inner rocker arm 21 is hinged to one set of brake pad brackets 14 by a screw. An abutment groove 22 is provided on the side of the inner rocker arm 21 corresponding to the side slot 20. The abutment groove 22 fits into the side slot 20. When the inner rocker arm 21 rotates, the abutment groove 22 cooperates with the side slot 20 of the support plate 19, pushing the support plate 19 to drive the two sets of brake pad brackets 14 to move synchronously. The slot cooperation realizes the stable transmission of force, ensuring that the two sets of brake pad brackets 14 move in unison, and improving the balance and reliability of braking.

[0034] The other end of the inner rocker arm 21 is provided with a rocker arm bend 23 for connection. The brake wall plate 13 is provided with a secondary brake hole 24 for connection at the position corresponding to the rocker arm bend 23. The rocker arm bend 23 passes through the secondary brake hole 24, so that the inner rocker arm 21 is connected to the external component. The brake wall plate 13 provides motion guidance and support for the rocker arm bend 23, realizes the linkage between the inner rocker arm 21 and the external transmission component, ensures the stability of the force transmission path, and restricts the movement trajectory of the inner rocker arm 21, thereby improving the accuracy of the secondary brake operation.

[0035] A connecting rod 25 is fitted on the rocker arm bend 23. One end of the connecting rod 25 extends through the auxiliary brake hole 24 to the outside of the brake wall plate 13. The connecting rod 25 is connected to the inner rocker arm 21 through the rocker arm bend 23. External force is transmitted to the inner rocker arm 21 through the connecting rod 25. The auxiliary brake hole 24 provides movement space and guidance for the connecting rod 25, establishing a transmission bridge between external operation and the inner rocker arm 21, making the force transmission more direct and improving the response speed of the auxiliary brake.

[0036] A secondary brake lever 26 is snapped onto the end of the connecting rod 25. The other end of the secondary brake lever 26 is snapped onto the second foot brake rocker arm 9 on one side of the rear brake shaft 10. In use, the secondary brake lever 26 transmits the force of the second foot brake rocker arm 9 to the connecting rod 25, which in turn drives the brake pad bracket 14 to move via the inner rocker arm 21 and the support plate 19. This achieves linkage between the secondary brake system and the rear brake shaft 10, enabling the secondary brake operation to work in tandem with the vehicle's braking system, thereby improving the reliability and ease of operation during emergency braking.

[0037] Example 1: When emergency braking is required while the vehicle is in motion, the force is transmitted to the secondary brake lever 26. The secondary brake lever 26 drives the connecting rod 25 to move. The connecting rod 25 transmits the force to the inner rocker arm 21 through the sleeved rocker arm bend 23 (the rocker arm bend 23 passes through the secondary brake hole 24 of the brake wall plate 13). The inner rocker arm 21 rotates around the hinge point with the brake pad bracket 14. Its contact groove 22 engages with the side slot 20 of the support plate 19, pushing the support plate 19 to move. This, in turn, drives the two sets of brake pad brackets 14 to rotate and open around the connecting shaft seat 15 as the fulcrum, so that the brake pads contact the wheel hub to generate friction and achieve braking. After braking, if it is necessary to adjust the brake clearance, the adjusting component 16 can be rotated. The adjusting thread groove 18 inside the adjusting component 16 drives the adjusting rods 17 at both ends to extend and retract, changing the opening range of the brake pad brackets 14, ensuring the stability of the next braking effect. This process, through the linkage of various components of the secondary brake system, provides independent and reliable emergency braking protection for the vehicle, significantly improving driving safety.

[0038] Example 2: When brake pads wear out due to long-term use, resulting in excessive brake clearance, it can be adjusted using the adjusting component 16. Specifically, rotating the adjusting component 16 causes the adjusting rods 17 at both ends to move axially along with the rotation of the adjusting component 16. This movement of the adjusting rods 17 drives the two sets of brake pad supports 14 to rotate around the connecting shaft seat 15, thereby reducing the clearance between the brake pads and the wheel hub. After adjustment, the contact area between the brake pads and the wheel hub returns to a reasonable range. At this point, operating the secondary brake causes the inner rocker arm 21 to open the brake pad supports 14 via the support plate 19, allowing the brake pads to contact the wheel hub tightly and ensuring braking performance. This process utilizes the threaded linkage between the adjusting component 16, the adjusting rods 17, and the adjusting threaded groove 18 to achieve flexible and precise adjustment of the brake clearance, effectively adapting to brake pad wear and extending the overall service life of the device.

[0039] Structural Description:

[0040] Front brake shaft 1: The front brake shaft 1 is the core transmission component at the front of the device. It is arranged horizontally with bearings 2 at both ends. It provides the mounting base for the brake lever 4 and the first foot brake rocker arm 6. It transmits the force of the brake pedal 5 to the subsequent braking components through its own rotation. It is the key carrier for front braking power transmission.

[0041] Bearing 2: Bearing 2 is sleeved on both ends of the front brake shaft 1. The inner side cooperates with the front brake shaft 1 to achieve relative rotation, and the outer side is fixedly connected to the connecting bracket 3. It can effectively reduce the frictional resistance when the front brake shaft 1 rotates, ensure its smooth rotation, and ensure the high efficiency of braking force transmission.

[0042] Connecting bracket 3: Connecting bracket 3 is fixed on one side of bearing 2. One end is connected to bearing 2, and the other end can be connected to the vehicle frame and other basic structures. It provides stable installation support for the front brake shaft 1 and related components, prevents the front brake shaft 1 from shifting when subjected to force, and ensures the stability of the front brake structure.

[0043] Brake lever 4: Brake lever 4 is bent, with one end fixedly mounted on the front brake shaft 1 and the other end fixedly connected to the brake pedal 5. It plays a role in force transmission and can convert the pressing force of the brake pedal 5 into a torque that drives the front brake shaft 1 to rotate. It is an important transmission structure connecting the brake pedal and the front brake shaft.

[0044] Brake pedal 5: The brake pedal 5 is installed in a convenient position in the driving area and is connected to the end of the brake lever 4 away from the front brake shaft 1. It is the operating component for the driver to control the braking. The driver's pedal action inputs an initial force to the braking system to control the start and stop of the braking.

[0045] First foot brake rocker arm 6: The first foot brake rocker arm 6 is fixedly installed on the front brake shaft 1 and swings synchronously with the rotation of the front brake shaft 1. The through hole 7 on it is used to connect the linkage rod 8, which can transmit the rotational force of the front brake shaft 1 to the linkage rod 8, realizing the power connection between the front and rear braking structures.

[0046] Perforation 7: Perforation 7 is a hole made in the first foot brake rocker arm 6. Its size is adapted to the linkage rod 8, allowing one end of the linkage rod 8 to be inserted and connected. This ensures that the swinging force of the first foot brake rocker arm 6 can be stably transmitted to the linkage rod 8, providing a reliable connection point for the linkage of the front and rear braking structures.

[0047] Linkage lever 8: Linkage lever 8 is a transmission component that connects the first foot brake rocker arm 6 and the second foot brake rocker arm 9. One end is inserted into the through hole 7 of the first foot brake rocker arm 6, and the other end is connected to the second foot brake rocker arm 9. It can transmit the force from the first foot brake rocker arm 6 to the relevant structure of the rear brake shaft 10 to realize the coordinated action of front and rear braking.

[0048] Second foot brake rocker arm 9: The second foot brake rocker arm 9 is fixedly installed on the rear brake shaft 10 and connected to the end of the linkage rod 8 away from the first foot brake rocker arm 6. It can drive the rear brake shaft 10 to rotate under the pull of the linkage rod 8, and transmit the braking force from the front to the rear brake shaft 10 to provide power for the rear braking.

[0049] Rear brake shaft 10: The rear brake shaft 10 is the core transmission component at the rear of the device. It is arranged horizontally and supported by the connecting frame 2 12. Brake rocker arms 11 are installed at both ends and are connected to the second foot brake rocker arm 9. It transmits the force to the brake rocker arm 11 through its own rotation, thereby driving the rear braking action.

[0050] Brake rocker arm 11: The brake rocker arm 11 is fixedly installed at both ends of the rear brake shaft 10 and swings as the rear brake shaft 10 rotates. One end is connected to the rear brake shaft 10, and the other end acts on the braking structure of the rear axle of the vehicle. It can convert the rotational force of the rear brake shaft 10 into the action of the braking actuator to realize the braking of the rear of the vehicle.

[0051] Connecting bracket 2 12: Connecting bracket 2 12 is equidistantly sleeved on the rear brake shaft 10. The inner side mates with the rear brake shaft 10, and the outer side is connected to the vehicle frame and other basic components. It provides stable installation support for the rear brake shaft 10 and related components, ensuring that the rear brake shaft 10 does not shift during rotation and ensuring the stability of the rear braking transmission.

[0052] Brake wall plate 13: Brake wall plate 13 is the basic mounting component of the auxiliary brake assembly. It is located in the rear wheel braking area of ​​the vehicle. The connecting shaft seat 15 is fixedly installed on the inner wall surface. At the same time, it has an auxiliary brake hole 24, which provides installation space and motion guidance for components such as brake pad bracket 14 and inner rocker arm 21. It is an important support carrier for the auxiliary brake assembly.

[0053] Brake pad bracket 14: There are two sets of brake pad brackets 14. One end is hinged to the connecting shaft seat 15 and can rotate around the connecting shaft seat 15. The other end is connected through the adjusting member 16. The support plate 19 is snapped between the two sets of brackets. It can open or return to its original position under external force, so as to drive the brake pad to contact or separate from the wheel hub. It is the actuator of the auxiliary brake.

[0054] Connecting shaft seat 15: The connecting shaft seat 15 is fixedly installed on the inner wall surface of the brake wall plate 13 and is the hinge fulcrum of the brake pad bracket 14. One end of both sets of brake pad brackets 14 is hinged to this component, so that the brake pad bracket 14 can rotate around the connecting shaft seat 15 as the center, providing a stable fulcrum for the braking action of the brake pad bracket 14.

[0055] Adjusting component 16: Adjusting component 16 is a component that connects the other end of the two sets of brake pad brackets 14. It is hollow inside and has an adjusting threaded groove 18. Adjusting rods 17 are installed at both ends. By engaging with the threaded adjustment rods 17, the relative position of the two sets of brake pad brackets 14 can be adjusted, thereby adjusting the braking clearance and ensuring stable braking effect.

[0056] Adjusting rod 17: The adjusting rod 17 is installed at both ends of the adjusting member 16. One end is located inside the adjusting member 16 and is threadedly connected to the adjusting thread groove 18. The other end is fixedly connected to the end of the brake pad bracket 14. It can extend and retract under the action of the adjusting member 16, thereby adjusting the opening range of the brake pad bracket 14 and realizing the adjustment of the brake gap.

[0057] Adjusting thread groove 18: The adjusting thread groove 18 is located inside the adjusting member 16 and is threadedly connected to one end of the adjusting rod 17 located inside the adjusting member 16. When the adjusting member 16 rotates, the adjusting rod 17 is driven to move axially through the thread transmission. It is the key structure for realizing the extension and retraction of the adjusting rod 17 and provides the transmission basis for adjusting the brake clearance.

[0058] Support plate 19: The support plate 19 is snapped between the two sets of brake pad brackets 14. A side slot 20 is provided on one side, which cooperates with the abutment slot 22 of the inner rocker arm 21. Under the push of the inner rocker arm 21, it can drive the two sets of brake pad brackets 14 to rotate and open synchronously, which plays the role of force transmission and distribution, and ensures that the two sets of brake pad brackets 14 move in unison.

[0059] Side groove 20: The side groove 20 is a groove opened on one side of the support plate 19. Its shape matches the abutment groove 22 of the inner rocker arm 21. It is used to cooperate with the abutment groove 22 to realize the stable connection between the support plate 19 and the inner rocker arm 21, so as to ensure that the force of the inner rocker arm 21 can be accurately transmitted to the support plate 19, and push the support plate 19 to drive the brake pad bracket 14 to move.

[0060] Inner rocker arm 21: The inner rocker arm 21 is the transmission component of the secondary brake assembly. One end is hinged to a set of brake pad brackets 14 by a screw, and the other end is provided with a rocker arm bend 23. The middle part cooperates with the side slot 20 of the support plate 19 through the contact groove 22. It can transmit the force from the connecting rod 25 to the support plate 19, thereby driving the brake pad bracket 14 to move. It is a key intermediate component for transmitting the secondary brake force.

[0061] The contact groove 22 is a groove formed on one side of the inner rocker arm 21 corresponding to the side slot 20. Its shape matches the side slot 20. It is used to cooperate with the side slot 20 to realize the force transmission between the inner rocker arm 21 and the support plate 19, so as to ensure that the inner rocker arm 21 can effectively push the support plate 19 to move when it rotates, and ensure the stability of the force transmission.

[0062] Rocker arm bend 23: Rocker arm bend 23 is a bending structure at the other end of the inner rocker arm 21. Its shape is adapted to the auxiliary brake hole 24. It can pass through the auxiliary brake hole 24 of the brake wall plate 13 and connect to the connecting rod 25. It transmits the force from the connecting rod 25 to the inner rocker arm 21, providing power for the rotation of the inner rocker arm 21. At the same time, it serves to connect the inner rocker arm 21 and the connecting rod 25.

[0063] Secondary brake hole 24: The secondary brake hole 24 is a hole opened on the brake wall plate 13. Its position corresponds to the rocker arm bend 23, and its size is adapted to the rocker arm bend 23. It allows the rocker arm bend 23 to pass through, providing motion guidance and support for the rocker arm bend 23. At the same time, it enables the inner rocker arm 21 to connect with the connecting rod 25 on the outside of the brake wall plate 13 to realize the transmission of force.

[0064] Link 25: Link 25 is the transmission component of the secondary brake assembly. One end is sleeved on the rocker arm bend 23, and the other end extends through the secondary brake hole 24 to the outside of the brake wall plate 13 and is engaged with the secondary brake lever 26. It can transmit the force from the secondary brake lever 26 to the inner rocker arm 21 and is the force transmission bridge connecting the secondary brake lever 26 and the inner rocker arm 21.

[0065] Auxiliary brake lever 26: The auxiliary brake lever 26 is a transmission component of the auxiliary brake system. One end is engaged with the connecting rod 25, and the other end is engaged with the second foot brake rocker arm 9 on the side of the rear brake shaft 10. It can transmit the external operating force to the connecting rod 25, and then drive the brake pad bracket 14 to move through the inner rocker arm 21, support plate 19 and other components to realize the braking function of the auxiliary brake.

[0066] Instructions for use

[0067] When the brake pedal 5 is depressed, the brake pedal 5 causes the brake lever 4 to swing, causing the front brake shaft 1 (which is stably rotated at both ends by bearings 2 and connecting bracket 3) to rotate accordingly. The first foot brake rocker arm 6 on the front brake shaft 1 swings synchronously, and the force is transmitted to the second foot brake rocker arm 9 through the linkage rod 8 in the through hole 7. The second foot brake rocker arm 9 drives the rear brake shaft 10 (supported by connecting bracket 12) to rotate. The brake rocker arms 11 at both ends of the rear brake shaft 10 then act on the rear axle to complete the normal braking. When the auxiliary brake is activated, the auxiliary brake rod 26 transmits the force to the connecting rod 25. The connecting rod 25 is connected to the rocker arm bend 23 of the inner rocker arm 21 (which passes through the auxiliary brake hole 24 in the brake wall plate 13), driving the inner rocker arm 21 to rotate. When rotated, the contact groove 22 of the inner rocker arm 21 engages with the side slot 20 of the support plate 19, pushing the support plate 19 to open the two sets of brake pad brackets 14 with the connecting shaft seat 15 as the fulcrum. The brake pads rub against the wheel hub to achieve braking, forming a dual-system complementarity and improving driving safety. If it is necessary to adjust the brake clearance, rotate the adjusting component 16, and its internal adjusting thread groove 18 drives the adjusting rods 17 at both ends to extend and retract, changing the opening range of the brake pad brackets 14 and ensuring stable braking effect. In the secondary brake assembly, the interlocking design of the inner rocker arm 21 and the support plate 19, and the engagement of the secondary brake lever 26 and the second foot brake rocker arm 9, makes the operation response rapid and facilitates stable braking and starting on road conditions such as half-slopes, improving the convenience of operation.

[0068] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic brake electric tricycle device capable of emergency-activated dual-system complementary braking, comprising: A front brake shaft (1) is provided with bearings (2) at both ends of the front brake shaft (1), and a connecting bracket (3) is fixedly installed on one side of the bearings (2). A brake lever (4) in the form of a bend is fixedly installed on one side of the front brake shaft (1), and a brake pedal (5) is fixedly installed on the other end of the brake lever (4). A first foot brake rocker arm (6) for connection is also fixedly installed on the front brake shaft (1). The first foot brake rocker arm (6) has a through hole (7) and a linkage rod (8) for linkage is inserted into the through hole (7). The other end of the linkage rod (8) is inserted into the second foot brake rocker arm (9) and the second foot brake rocker arm (9) is fixedly installed on the rear brake shaft (10). Both ends of the rear brake shaft (10) are fixedly mounted with brake rocker arms (11) for brake connection. The rear brake shaft (10) is also equidistantly fitted with several connecting brackets (12) for connection. The feature is that it further includes: The auxiliary brake assembly includes a brake wall plate (13), a brake pad bracket (14), a connecting shaft seat (15), and an adjusting component (16). The connecting shaft seat (15) is fixedly installed on the inner wall surface of the brake wall plate (13). There are two sets of brake pad brackets (14), and one end of each brake pad bracket (14) is hinged to the connecting shaft seat (15). The other ends of the two sets of brake pad brackets (14) are connected together through the adjusting component (16).

2. The hydraulic brake electric tricycle device with dual-system complementary braking capable of emergency start according to claim 1, characterized in that: The adjusting component (16) is hollow, and adjusting rods (17) are installed at both ends of the adjusting component (16). The adjusting component (16) also has an adjusting threaded groove (18) inside. One end of each of the two sets of adjusting rods (17) located inside the adjusting component (16) is threadedly connected to the adjusting thread groove (18), and the other end of each of the two sets of adjusting rods (17) is fixedly connected to the ends of the two sets of brake pad brackets (14).

3. The hydraulic brake electric tricycle device with dual-system complementary braking capable of emergency start according to claim 1, characterized in that: A support plate (19) is also snapped between the two sets of brake pad brackets (14). A side slot (20) is provided on one side of the support plate (19). An inner rocker arm (21) is hinged to one set of brake pad brackets (14) by a screw. An abutment groove (22) is provided on the side of the inner rocker arm (21) corresponding to the side slot (20). The abutment groove (22) fits into the side slot (20).

4. The hydraulic brake electric tricycle device with dual-system complementary braking capable of emergency start according to claim 3, characterized in that: The other end of the inner rocker arm (21) is provided with a rocker arm bend (23) for connection, and the brake wall plate (13) is provided with a secondary brake hole (24) for connection at the position corresponding to the rocker arm bend (23).

5. The hydraulic brake electric tricycle device with dual-system complementary braking capable of emergency start according to claim 4, characterized in that: A connecting rod (25) is fitted on the rocker arm bend (23), and one end of the connecting rod (25) extends through the auxiliary brake hole (24) to the outside of the brake wall plate (13).

6. The hydraulic brake electric tricycle device with dual-system complementary braking capable of emergency start according to claim 5, characterized in that: The end of the connecting rod (25) is fitted with a secondary brake lever (26), and the other end of the secondary brake lever (26) is fitted with a second foot brake rocker arm (9) on one side of the rear brake shaft (10).

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