Accelerator pedal

Abstract

The invention discloses an accelerator pedal and relates to the field of accelerator pedals, the accelerator pedal comprises a shell, a pedal arm, a rotor, a wedge block and a spring, and an arc-shaped friction wall is formed on the inner wall of the shell; the rotor is rotationally installed on the shell, and the movable end of the rotor is provided with a friction block abutting against the friction wall. One end of the pedal arm is installed on the outer side of the shell, the movable end of the pedal arm extends to form a pressing rod, and the pressing rod penetrates through the shell and then abuts against the movable end of the rotor. The two ends of the spring abut against the shell and the wedge block respectively, the wedge block is arranged between the rotor and the spring, the wedge block abuts against the rotor and the friction block, and the wedge block can move in the length direction of the rotor. According to the accelerator pedal, the pedal arm and the rotor are linked through the pressing rod, the spring is squeezed back and forth through the wedge block, the elastic force of the spring is transmitted to the friction block so as to generate friction with the friction wall, the structure is reasonable, the number of parts is small, the assembling steps and the product weight can be reduced, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of accelerator pedals, in particular to an accelerator pedal. Background Art

[0002] Currently, electronic accelerator pedals commonly used in the market detect the pedal through sensors and use electronic signals to control the vehicle speed. After observation, it is found that the existing accelerator pedals have the problems of large number of parts, large part size, many assembly steps, and high cost.

[0003] In view of this, the present invention is deeply conceived to solve the many deficiencies and inconveniences caused by the imperfect structural design of the existing accelerator pedal, and actively studies and improves the trial production to develop and design the present invention. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an accelerator pedal that reduces the number of parts and product weight, reduces assembly steps, and reduces production costs.

[0005] In order to achieve the above object, the solution of the present invention is: A throttle pedal comprises a housing, a pedal arm, a rotor, a wedge block and a spring, wherein an inner wall of the housing is formed with an arc-shaped friction wall; The rotor is rotatably mounted on the housing, and a friction block abutting against the friction wall is provided at the movable end of the rotor; One end of the pedal arm is mounted on the outside of the housing, and a pressure rod extends from the movable end of the pedal arm. The pressure rod passes through the housing and abuts against the movable end of the rotor. The two ends of the spring are respectively in contact with the housing and the wedge block. The wedge block is arranged between the rotor and the spring, and the wedge block is in contact with the rotor and the friction block. The wedge block can move along the length direction of the rotor.

[0006] Furthermore, a boss is provided inside the shell, and the rotor includes a sleeve and a pressure arm. The sleeve is sleeved on the boss, and the pressure arm can swing around the axis of the boss. The friction block is arranged at the end of the pressure arm.

[0007] Furthermore, the friction block includes a hinged portion, and the end of the pressure arm is provided with a limiting groove corresponding to the hinged portion, and the hinged portion is movably fitted in the limiting groove.

[0008] Furthermore, a friction portion that fits with the friction wall is formed on one side of the friction block close to the friction wall, and an abutment portion that fits with the surface of the wedge block is provided on one side of the friction block close to the wedge block.

[0009] Furthermore, the end of the pressure rod is arc-shaped, and the rotor is provided with an inclined groove corresponding to the pressure rod, and the pressure rod is in active contact with the inclined groove.

[0010] Furthermore, the shell is provided with an opening, and the end of the pressure rod extends into the shell after passing through the opening; a check block is transversely arranged at the end of the pressure rod, and the check block is in active contact with the inner wall of the shell on the peripheral side of the opening.

[0011] Furthermore, the rotor is provided with a slide groove along its length direction, and the surface of the wedge block is provided with a sliding block corresponding to the slide groove, and the sliding block is movably fitted in the slide groove.

[0012] Furthermore, the surface of the wedge block is concave to form a receiving groove, and a convex column is provided in the middle of the receiving groove. One end of the spring is embedded in the receiving groove and sleeved on the convex column. A stop block is also provided on the peripheral side of the receiving groove, and the stop block is set between the spring and the friction block.

[0013] Furthermore, a spring base is provided in the housing, and the other end of the spring is mounted on the spring base.

[0014] Furthermore, a mounting portion is provided at one end of the pedal arm, and the mounting portion includes an I-shaped plate, a connecting plate with certain flexibility, and a wedge-shaped guide block, the I-shaped plate is connected to the pedal arm through the connecting plate, and the guide block is arranged at the bottom of the I-shaped plate; The housing is provided with a mounting groove at a position corresponding to the mounting portion, a clamping groove is provided at the bottom of the mounting groove, the I-shaped plate is installed in the mounting groove, and the guide block and the clamping groove are mutually limited.

[0015] After adopting the above structure, the accelerator pedal of the present invention links the pedal arm and the rotor through the pressure rod, squeezes the spring back and forth through the wedge block, and transmits the spring force to the friction block to generate friction with the friction wall. The structure is reasonable and the number of parts is small, which can reduce the assembly steps and product weight, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention.

[0017] Figure 2 It is an exploded view of a preferred embodiment of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the shell in a preferred embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the structure of the pedal arm in a preferred embodiment of the present invention.

[0020] Figure 5 The structure of the rotor in the preferred embodiment of the present invention is shown in FIG. Figure 1 .

[0021] Figure 6 The structure of the rotor in the preferred embodiment of the present invention is shown in FIG. Figure 2 .

[0022] Figure 7 The structure of the wedge block in the preferred embodiment of the present invention is shown in FIG. Figure 1 .

[0023] Figure 8 The structure of the wedge block in the preferred embodiment of the present invention is shown in FIG. Figure 2 .

[0024] Fig. 9 It is a schematic diagram of the structure of the friction block in a preferred embodiment of the present invention.

[0025] Explanation of the reference numerals in the accompanying drawings: 1. Shell; 11. Friction wall; 12. Boss; 13. Opening; 14. Spring base; 15. Mounting groove; 16. Clamping groove; 2. Pedal arm; 21. Mounting portion; 211. I-shaped plate; 212. Connecting plate; 213. Guide block; 22. Pressure rod; 23. Check block; 24. Buffer block; 3. Rotor; 31. Sleeve; 32. Pressure arm; 33. Inclined groove; 34. Limiting groove; 35. Slide groove; 4. Wedge block; 41. Slider; 42. Accommodating groove; 43. Boss; 44. Stopper; 5. Friction block; 51. Articulated portion; 52. Friction portion; 53. Abutment portion; 6. Spring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0028] like Figures 1 to 9 As shown, a preferred embodiment of an accelerator pedal of the present invention comprises a housing 1, a pedal arm 2, a rotor 3, a wedge block 4 and a spring 6. An arc-shaped friction wall 11 is formed on the inner wall of the housing 1; the rotor 3 is rotatably mounted on the housing 1, and a friction block 5 abutting against the friction wall 11 is provided at the movable end of the rotor 3; one end of the pedal arm 2 is mounted on the outer side of the housing 1, and a pressure rod 22 extends from the movable end of the pedal arm 2, and the pressure rod 22 passes through the housing 1 and abuts against the movable end of the rotor 3; two ends of the spring 6 abut against the housing 1 and the wedge block 4 respectively, the wedge block 4 is arranged between the rotor 3 and the spring 6, and the wedge block 4 abuts against the rotor 3 and the friction block 5, and the wedge block 4 can move along the length direction of the rotor 3.

[0029] Specifically, after one end of the pedal arm 2 is installed on the housing 1, the end away from the installation position is the movable end, and the pressure rod 22 is arranged on the bottom surface of the middle part of the pedal arm 2. After the rotor 3 is installed on the housing 1, the end away from the installation position is the movable end, the upper end surface of the movable end of the rotor 3 contacts the pressure rod 22, and the lower end surface is connected to the wedge block 4; the friction block 5 is located between the rotor 3 and the friction wall 11, and generates sliding friction with the friction wall 11 as the rotor 3 rotates. The lower end of the spring 6 is installed on the housing 1, and the upper end of the spring 6 is installed on the lower end surface of the wedge block 4. An angle is formed between the upper end and the lower end of the spring 6, so that the spring 6 is set to be curved, and axial and radial components can be generated when rebounding.

[0030] In this embodiment, a sensor (not shown in the figure) for detecting the rotation angle of the rotor 3 is installed on the rotor 3 .

[0031] During operation, the pedal arm 2 drives the movable end of the rotor 3 to rotate downward through the pressure rod 22, and drives the rotor 3 to rotate upward through the spring 6. During the movement, the friction block 5 contacts and rubs against the friction wall 11, generating friction force.

[0032] When the pedal arm 2 is pressed down, the pressure is transmitted to the rotor 3 via the pressure rod 22, and the movable end of the rotor 3 rotates downward, thereby driving the wedge block 4 to squeeze the spring 6. The elastic force generated by the compression of the spring 6 is transmitted to the wedge block 4. The axial force of the spring 6 presses the wedge block 4 against the lower end surface of the rotor 3, and the radial force of the spring 6 presses the wedge block 4 against the friction block 5, so that the friction block 5 contacts and rubs against the friction wall 11. When the pedal arm 2 is released, the spring 6 drives the movable end of the rotor 3 to rotate upward, and lifts the pedal arm 2 through the pressure rod 22, thereby returning to the initial position.

[0033] The key point of the present invention is that the accelerator pedal of the present invention links the pedal arm 2 and the rotor 3 through the pressure rod 22, squeezes the spring 6 back and forth through the wedge block 4, and transmits the elastic force of the spring 6 to the friction block 5 to generate friction with the friction wall 11. It has a reasonable structure and a small number of parts, which can reduce the assembly steps and product weight, thereby reducing production costs.

[0034] In this embodiment, a boss 12 is provided inside the housing 1, and the rotor 3 includes a sleeve 31 and a pressure arm 32. The sleeve 31 is sleeved on the boss 12, and the pressure arm 32 can swing around the axis of the boss 12. The friction block 5 is arranged at the end of the pressure arm 32.

[0035] In this embodiment, the friction block 5 includes a hinged portion 51 , and a limiting groove 34 corresponding to the hinged portion 51 is provided at the end of the pressure arm 32 , and the hinged portion 51 is movably fitted in the limiting groove 34 .

[0036] The limiting groove 34 is an arc-shaped semi-enclosed groove body, and the hinge part 51 is cylindrical. The curvature of the contact surface between the hinge part 51 and the limiting groove 34 is consistent with the curvature of the inner wall of the limiting groove 34, which facilitates the friction block 5 to rotate after the wedge block 4 is displaced, thereby maintaining a larger fitting area with the friction wall 11.

[0037] In other embodiments, the friction block 5 and the rotor 3 may also be made into one part, further reducing the number of parts and assembly steps.

[0038] The friction block 5 is provided with a friction portion 52 that fits with the friction wall 11 on one side thereof close to the friction wall 11 , and a contact portion 53 that fits with the surface of the wedge block 4 is provided on one side thereof close to the wedge block 4 .

[0039] In this embodiment, the curvature of the friction part 52 matches the curvature of the friction wall 11, and the fitting effect is good. The end of the wedge block 4 is set to an arc shape, and the abutment part 53 is set to an arc groove, which has a large contact area and reduces wear.

[0040] The end of the pressure rod 22 is set to be arc-shaped, and the rotor 3 is provided with an inclined groove 33 at the corresponding pressure rod 22, and the pressure rod 22 is in active contact with the inclined groove 33. In this embodiment, the inclined groove 33 is provided on the upper end surface of the pressure arm 32 away from the sleeve 31. When the pressure rod 22 drives the pressure arm 32 to rotate, the end of the pressure rod 22 rotates in the inclined groove 33, ensuring that the pressure from the pedal arm 2 can be stably transmitted to the pressure arm 32; the contact surface between the pressure rod 22 and the inclined groove 33 is also provided with a buffer block 24.

[0041] In this embodiment, an opening 13 is provided on the surface of the shell 1, and the end of the pressure rod 22 passes through the opening 13 and extends into the shell 1; a check block 23 is laterally provided at the end of the pressure rod 22, and the check block 23 is in active contact with the inner wall of the shell 1 around the opening 13 to prevent the pressure rod 22 from detaching from the shell 1.

[0042] In this embodiment, a slide groove 35 is provided on the lower end surface of the pressure arm 32 along its length direction, and a slider 41 corresponding to the slide groove 35 is provided on the upper end surface of the wedge block 4, and the slider 41 is movably fitted in the slide groove 35. Through the mutual limitation of the slider 41 and the slide groove 35, the wedge block 4 is limited to slide back and forth relative to the pressure arm 32 only in the direction of approaching / moving away from the friction wall 11, and the structure is more stable.

[0043] In other embodiments, a sliding block 41 may be provided on the rotor 3 , and a corresponding sliding groove 35 may be provided on the wedge block 4 .

[0044] In this embodiment, the surface of the wedge block 4 is concave to form a receiving groove 42, a convex column 43 is further provided in the middle of the receiving groove 42, one end of the spring 6 is embedded in the receiving groove 42 and sleeved on the convex column 43; a stopper 44 is further provided on the peripheral side of the receiving groove 42, and the stopper 44 is arranged between the spring 6 and the friction block 5. The spring 6 is prevented from being separated from the wedge block 4, the connection between the spring 6 and the wedge block 4 is strengthened, and the radial force of the spring 6 can be more efficiently transmitted to the friction block 5 through the wedge block 4.

[0045] A spring base 14 is provided in the housing 1, and the other end of the spring 6 is mounted on the spring base 14. In this embodiment, the spring base 14 is a hollow truncated cone, and the lower end of the spring 6 is placed in the spring base 14 during assembly, without requiring extra installation steps, thereby improving assembly efficiency.

[0046] A mounting portion 21 is provided at one end of the pedal arm 2, and the mounting portion 21 includes an I-shaped plate 211, a connecting plate 212 with a certain flexibility, and a wedge-shaped guide block 213. The I-shaped plate 211 is connected to the pedal arm 2 via the connecting plate 212, and the guide block 213 is arranged at the bottom of the I-shaped plate 211; a mounting groove 15 is provided at the housing 1 corresponding to the mounting portion 21, and a clamping groove 16 is provided at the bottom of the mounting groove 15, the I-shaped plate 211 is installed in the mounting groove 15, and the guide block 213 and the clamping groove 16 limit each other.

[0047] During the assembly process, the I-type plate 211 slides into the installation groove 15, and the groove wall of the installation groove 15 and the inner wall of the I-type plate 211 limit each other. When the I-type plate 211 moves to the preset installation position, the guide block 213 slides into the card slot 16 to complete the installation. There is no need to check whether it is installed in place, and at the same time, it prevents the installation part 21 from detaching from the installation groove 15.

[0048] In this embodiment, the connecting plate 212 is made of soft plastic. When the pedal arm 2 is pressed down, the connecting plate 212 can produce different deformation amounts according to different applied forces, so that the pedal arm 2 can rotate around the I-shaped plate 211 at a certain angle.

[0049] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An accelerator pedal, characterized in that: It includes a housing, a pedal arm, a rotor, a wedge block and a spring, wherein the inner wall of the housing is formed with an arc-shaped friction wall; The rotor is rotatably mounted on the housing, and a friction block abutting against the friction wall is provided at the movable end of the rotor; One end of the pedal arm is mounted on the outside of the housing, and a pressure rod extends from the movable end of the pedal arm. The pressure rod passes through the housing and abuts against the movable end of the rotor. The two ends of the spring are respectively in contact with the housing and the wedge block. The wedge block is arranged between the rotor and the spring, and the wedge block is in contact with the rotor and the friction block. The wedge block can move along the length direction of the rotor.

2. The accelerator pedal according to claim 1, characterized in that: A boss is arranged inside the shell, and the rotor comprises a sleeve and a pressure arm. The sleeve is sleeved on the boss, and the pressure arm can swing around the axis of the boss. The friction block is arranged at the end of the pressure arm.

3. The accelerator pedal according to claim 2, characterized in that: The friction block comprises a hinged portion, and the end of the pressure arm is provided with a limiting groove corresponding to the hinged portion, and the hinged portion is movably fitted in the limiting groove.

4. The accelerator pedal according to claim 1, characterized in that: A friction portion that fits with the friction wall is formed on one side of the friction block close to the friction wall, and an abutment portion that fits with the surface of the wedge block is provided on one side of the friction block close to the wedge block.

5. The accelerator pedal according to claim 1, characterized in that: The end of the pressure rod is arc-shaped, and the rotor is provided with an inclined groove at a position corresponding to the pressure rod, and the pressure rod is in active contact with the inclined groove.

6. The accelerator pedal according to claim 1, characterized in that: The shell is provided with an opening, and the end of the pressure rod extends into the shell after passing through the opening; a check block is transversely arranged at the end of the pressure rod, and the check block is in active contact with the inner wall of the shell on the peripheral side of the opening.

7. The accelerator pedal according to claim 1, characterized in that: The rotor is provided with a slide groove along its length direction, and the surface of the wedge block is provided with a sliding block corresponding to the slide groove, and the sliding block is movably fitted in the slide groove.

8. The accelerator pedal according to claim 1, characterized in that: The surface of the wedge block is concave to form a receiving groove, and a convex column is also provided in the middle of the receiving groove. One end of the spring is embedded in the receiving groove and sleeved on the convex column. A stopper is also provided on the peripheral side of the receiving groove, and the stopper is arranged between the spring and the friction block.

9. The accelerator pedal according to claim 1, characterized in that: A spring base is arranged in the shell, and the other end of the spring is installed on the spring base.

10. The accelerator pedal according to claim 1, characterized in that: One end of the pedal arm is provided with a mounting portion, the mounting portion includes an I-shaped plate, a connecting plate with certain flexibility and a wedge-shaped guide block, the I-shaped plate is connected to the pedal arm through the connecting plate, and the guide block is arranged at the bottom of the I-shaped plate; The housing is provided with a mounting groove at a position corresponding to the mounting portion, a clamping groove is provided at the bottom of the mounting groove, the I-shaped plate is installed in the mounting groove, and the guide block and the clamping groove are mutually limited.

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