Parking and braking dual-function integrated pedal

Abstract

The utility model discloses a parking and braking dual-function integrated pedal. The parking and braking dual-function integrated pedal comprises a supporting frame, a braking arm, a braking pedal, a parking arm, a parking pedal, a parking lock hook, a parking lock block and other core assemblies. Spatial integration and function reuse of service braking and parking braking are achieved through mechanical linkage, the integral pedal design is adopted, a traditional split type braking system is integrated into a single lever structure, transverse space occupation is remarkably reduced, and the brake system is particularly suitable for compact vehicle types such as golf carts and the like; the unlocking block is linked through the accelerator pedal, acceleration can be started only after the parking locking state is forcibly released, and the safety risk of direct starting of parking without releasing is eliminated; a double-torsion-spring return mechanism ensures quick reset after parking is released, and mechanical clamping stagnation is avoided; the number of parts is reduced through integrated design, and the material and manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of low-speed electric vehicle technology, specifically to a dual-function integrated pedal for parking and braking. Background Technology

[0002] Traditional low-speed electric vehicles (such as golf carts, sightseeing vehicles, etc.) generally adopt a split braking system design, with the service brake and parking brake functions being implemented by independent pedals or operating mechanisms: (1) The service brake is usually integrated into the brake pedal directly in front of the driver's foot, and the braking force is transmitted through a hydraulic or mechanical linkage mechanism; (2) The parking brake is independently set on the driver's side, and the driver needs to manually operate a mechanical lever or button to lock it.

[0003] This split design has the following technical defects: (1) The service brake and parking brake mechanisms are arranged separately, which requires additional lateral and longitudinal space in the driver's cab. This exacerbates the contradiction between the layout of the passenger compartment and functional components, especially in models such as golf carts with short wheelbase and compact interior space; (2) The split system requires independent transmission components (such as dual hydraulic lines and mechanical cables), sensors and controllers. The increased number of parts leads to high material and processing costs.

[0004] Therefore, there is an urgent need for a pedal mechanism that can integrate the functions of service braking and parking braking to meet the comprehensive requirements of low-speed electric vehicles for compactness, economy and reliability. Utility Model Content

[0005] In order to overcome the shortcomings of separate service brakes and parking brakes in low-speed electric vehicles, this utility model provides an integrated pedal with dual functions of parking and braking.

[0006] The technical solution adopted by this utility model is as follows: a dual-function integrated pedal for parking and braking, comprising: a support frame; a brake arm hinged to the support frame; a brake pedal fixedly connected to the brake arm; a parking arm hinged to the brake arm in the form of a lever; a parking pedal hinged to the brake pedal, forming an integral pedal in appearance, the parking pedal being drivenly connected to the rear end of the parking arm; a parking lock hook fixed to the front end of the parking arm; and a parking lock block fixed to the support frame; the parking lock hook and the parking lock block have two states: engaged and disengaged, and the parking pedal drives the parking arm to rotate, thereby causing the parking lock hook to switch between the two positions.

[0007] Preferably, a parking rocker arm is provided between the parking pedal and the rear end of the parking arm for transmission connection.

[0008] Preferably, a parking arm return spring is provided between the parking arm and the brake arm, and a parking pedal return spring is provided between the parking pedal and the brake pedal.

[0009] Preferably, the parking arm return spring and the parking pedal return spring are torsional springs.

[0010] Preferably, the unlocking block with a cam profile is rotatably mounted on the support frame, and is connected with the accelerator and accelerator pedal assembly to contact and rotate the parking arm.

[0011] Preferably, the accelerator and accelerator pedal assembly comprises an accelerator, an accelerator arm and an accelerator pedal, and the accelerator arm is connected with the unlocking block through an unlocking link and an unlocking swing rod.

[0012] Preferably, the parking lock hook has a main hook groove matched with the outer shape of the parking lock block, and the hook bottom of the main hook groove is provided with an inner recessed auxiliary groove.

[0013] Preferably, the side of the parking lock block in force contact with the main hook groove is provided with an anti-skid tooth.

[0014] Preferably, the brake arm is hinged to the support frame in the form of a lever suspension.

[0015] The utility model has the following beneficial effects:

[0016] 1. Spatial integration design: the parking pedal and the brake pedal are integrated into an integrated pedal structure, reducing the horizontal space occupation, especially suitable for narrow cabin space such as golf carts;

[0017] 2. Anti-misoperation: the unlocking block is connected with the accelerator pedal, and the accelerator pedal can be stepped down only after the parking lock state is forcibly released, eliminating the risk of starting directly without releasing the parking;

[0018] 3. Quick return: the double-return-spring structure adopts a torsional spring structure, and the parking is automatically reset quickly after being released, avoiding mechanical jamming;

[0019] 4. Low cost: the integrated pedal structure reduces the number of parts, and reduces the material cost and the manufacturing cost. DRAWINGS

[0020] Figure 1 is a three-dimensional schematic view of an embodiment of the utility model.

[0021] Figure 2 is an exploded schematic view of an embodiment of the utility model.

[0022] Figure 3 is a mounting schematic view of the brake arm and the parking arm in an embodiment of the utility model.

[0023] Figure 4 is a left view schematic view of an embodiment of the utility model.

[0024] support frame 2;

[0025] brake arm 3;

[0026] brake pedal 4;

[0027] parking arm 7;

[0028] parking pedal 8;

[0029] parking lock hook 9, main hook groove 9.1, auxiliary groove 9.2;

[0030] parking lock block 10, anti-skid tooth 10.1;

[0031] parking rocker 11;

[0032] parking arm return spring 13;

[0033] parking pedal return spring 14;

[0034] unlocking block 17;

[0035] accelerator 18;

[0036] acceleration arm 19;

[0037] acceleration pedal 20;

[0038] unlocking connecting rod 21;

[0039] unlocking swing rod 22. DETAILED DESCRIPTION

[0040] The utility model will be further explained in connection with the embodiments and drawings.

[0041] In the embodiments, as Figures 1-4As shown, it is a parking and braking dual-function integrated pedal of a mechanical braking system, comprising: a support frame 2; a brake arm 3 hinged to the support frame 2; a brake pedal 4 fixedly connected with the brake arm 3; a parking arm 7 hinged to the brake arm 3 in the form of a lever; a parking pedal 8 hinged to the brake pedal 4, which forms a whole pedal in appearance, the parking pedal 8 is in transmission connection with the rear end of the parking arm 7; a parking lock hook 9 fixed to the front end of the parking arm 7; a parking lock block 10 fixed to the support frame 2; the parking lock hook 9 and the parking lock block 10 have two states of clamping and separation, the parking pedal 8 drives the parking arm 7 to rotate, so as to drive the parking lock hook 9 to switch between the two positions. The embodiment realizes the spatial integration and functional reuse of the driving brake and the parking brake through mechanical linkage, integrates the parking pedal 8 and the brake pedal 4 into the same pedal structure, significantly reduces the horizontal space occupation, and solves the layout contradiction problem of the traditional split type design in compact vehicles (such as golf carts). The lever mechanism of the parking arm 7 and the brake arm 3 realizes the cooperative operation of the two functions, reduces the number of parts, and reduces the assembly complexity. The integrated design reduces the use of independent transmission components (such as hydraulic pipelines and mechanical cables), and reduces the material cost and maintenance cost.

[0042] In the embodiment, as shown in Figure 3 , a parking rocker 11 is arranged between the parking pedal 8 and the rear end of the parking arm 7 for transmission connection. The design of the parking rocker 11 shortens the physical distance between the parking arm 7 and the parking pedal 8, saving space. In addition, the hinged end of the parking rocker 11 and the parking arm 7 adopts a long hole to ensure the degree of freedom of rotation of the parking arm 7, buffer the impact force, and avoid the clamping or abnormal sound caused by the direct rigid connection of the parking pedal 8 and the parking arm 7.

[0043] In the embodiment, as shown in Figure 3 , a parking arm return spring 13 is arranged between the parking arm 7 and the brake arm 3, and a parking pedal return spring 14 is arranged between the parking pedal 8 and the brake pedal 4. The double return spring structure quickly completes automatic reset after the parking is released, avoiding mechanical clamping. The parking arm return spring 13 and the parking pedal return spring 14 both adopt torsional springs, which are small in size and compact in structure, and are suitable for the limited internal space of low-speed electric vehicles.

[0044] In the embodiment, as shown in Figure 1 , Figure 2 , it further comprises an unlocking block 17 with a cam profile, the unlocking block 17 is rotatably installed on the support frame 2, and the unlocking block 17 is linked with the accelerator and accelerator pedal assembly, contacts with the parking arm 7 and drives the parking arm 7 to rotate. The unlocking block 17 is linked with the accelerator and accelerator pedal assembly, and the parking lock can be released only after acceleration, avoiding the risk that the parking is not released when the vehicle starts, and the position of the parking arm 7 is adjusted in real time through the rotary motion of the unlocking block 17, ensuring the strict synchronization of the parking lock state and the vehicle running state.

[0045] In the embodiment, as shown in Figure 1 , Figure 2 The accelerator and the accelerator pedal assembly include an accelerator 18, an acceleration arm 19 and an acceleration pedal 20, and the acceleration arm 19 is in transmission connection with the unlocking block 17 through an unlocking connecting rod 21 and an unlocking swing rod 22. The two-stage transmission design of the unlocking connecting rod 21 and the unlocking swing rod 22 reduces the influence of the vibration of the acceleration pedal 20 on the unlocking block 17, and improves the accuracy of the unlocking action. The two-stage transmission replaces the traditional rigid connection, is suitable for acceleration pedals with different strokes, and is compatible with various vehicle designs.

[0046] In the embodiment, as shown in Figure 4 The parking lock hook 9 has a main hook groove 9.1 matched with the outer shape of the parking lock block 10, the hook bottom of the main hook groove 9.1 is provided with an inner recessed secondary groove 9.2, and the side of the parking lock block 10 in force contact with the main hook groove 9.1 is provided with anti-slip teeth 10.1. The double-layer clamping structure of the main hook groove 9.1 and the secondary groove 9.2 prevents the parking lock hook 9 from being detached due to vibration; the anti-slip teeth 10.1 of the parking lock block 10 are engaged with the main hook groove 9.1, the friction force is increased, the loosening caused by external interference in the parking state is further avoided, and the parking safety is improved.

[0047] In the embodiment, as shown in Figures 1-3 The brake arm 3 is hinged to the support frame 2 in the form of a lever suspension. The suspension design allows the brake arm to swing in a larger range, facilitates adjustment of the angle of the brake arm, is beneficial to optimization of man-machine engineering adjustment, and is suitable for the needs of different vehicle models.

[0048] Obviously, the above embodiments of the utility model are only examples for illustrating the utility model, and are not a limitation on the embodiments of the utility model. Other obvious changes or variations derived from the essential spirit of the utility model still belong to the protection scope of the utility model.

Claims

1. A parking and braking dual function integrated pedal, characterized in that, It comprises: a support frame (2); a brake arm (3) hinged to the support frame (2); a brake pedal (4) fixedly connected with the brake arm (3); a parking arm (7) hinged to the brake arm (3) in the form of a lever; a parking pedal (8) hinged to the brake pedal (4) and forming an integral pedal in appearance, the parking pedal (8) being in transmission connection with the rear end of the parking arm (7); a parking lock hook (9) fixed to the front end of the parking arm (7); a parking lock block (10) fixed to the support frame (2); the parking lock hook (9) and the parking lock block (10) have two states of clamping and separation, the parking pedal (8) drives the parking arm (7) to rotate, so as to drive the parking lock hook (9) to switch between two positions.

2. The park and brake dual function integrated pedal of claim 1, wherein, A parking rocker (11) is arranged between the parking pedal (8) and the rear end of the parking arm (7) for transmission connection.

3. The park and brake dual function integrated pedal of claim 1, wherein, A parking arm return spring (13) is arranged between the parking arm (7) and the brake arm (3), and a parking pedal return spring (14) is arranged between the parking pedal (8) and the brake pedal (4).

4. The park and brake dual function integrated pedal of claim 3, wherein, Both the parking arm return spring (13) and the parking pedal return spring (14) are torsional springs.

5. The park and brake dual function integrated pedal of claim 1, wherein, An unlocking block (17) with a cam profile is further included, the unlocking block (17) being rotatably installed on the support frame (2), the unlocking block (17) being in linkage with an accelerator and accelerator pedal assembly, and being in contact with the parking arm (7) and driving the parking arm (7) to rotate.

6. The park and brake dual function integrated pedal of claim 5, wherein, The accelerator and accelerator pedal assembly comprises an accelerator (18), an acceleration arm (19) and an acceleration pedal (20), the acceleration arm (19) and the unlocking block (17) being in transmission connection through an unlocking connecting rod (21) and an unlocking swing rod (22).

7. The park and brake dual function integrated pedal of claim 1, wherein, The parking lock hook (9) has a main hook groove (9.1) matching the outer shape of the parking lock block (10), the hook bottom of the main hook groove (9.1) being provided with an inner recessed secondary groove (9.2).

8. The park and brake dual function integrated pedal of claim 7, wherein, The parking lock block (10) is provided with an anti-skid tooth (10.1) on the side in force contact with the main hook groove (9.1).

9. The park and brake dual function integrated pedal of claim 1, wherein, The brake arm (3) is hinged to the support frame (2) in the form of a lever suspension.

Images