Accelerator pedal

Abstract

The utility model provides an accelerator pedal, include: casing, casing defines the installation space, and the inner side wall on the installation space is fixed with first connecting shaft, and the bottom wall on the installation space is integrative with first recess; The pedal arm of installation space outside, pedal arm installs on the casing, the connecting rod of going into the installation space, the upper end rotatablely connected pedal arm of connecting rod, cylinder friction piece, cylinder friction piece fixedly covers and sets on first connecting shaft, the rotor in the installation space, the rear end of rotor is equipped with the socket joint hole, socket joint hole rotatablely covers and sets on cylinder friction piece, and the inner side wall of socket joint hole and the outer peripheral wall of cylinder friction piece contact forms the friction surface, and the lower end rotatablely connected with connecting rod of the front end of rotor, and the rear end and the front end of rotor are equipped with second recess, spring, the upper end of spring connects first recess, and the lower end of spring connects second recess. Its structure simplifies, cost reduction, has the effect of reducing friction and friction noise simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an accelerator pedal. Background Technology

[0002] The existing friction system of automotive accelerator pedal has three major drawbacks: First, the friction plate and rotor adopt a two-color injection molding process, which results in a complex mold structure, high mold opening costs, and high parts costs; second, the large friction force causes obvious friction noise, affecting the driving experience; third, the system requires an additional independent spring base, which not only increases parts costs but may also exacerbate friction noise between multiple components, further reducing the user experience. Utility Model Content

[0003] The present invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the purpose of this invention is to provide an accelerator pedal that has a simple structure, low manufacturing cost, and can reduce frictional noise and friction.

[0004] To achieve the above objectives, this utility model proposes an accelerator pedal, comprising: The housing defines an installation space, a first connecting shaft is fixedly provided on the inner side wall of the installation space, and a first groove is integrally formed on the bottom wall of the installation space. A pedal arm located outside the mounting space, the pedal arm being mounted on the housing; A connecting rod that passes through the mounting space, the upper end of the connecting rod being rotatably connected to the pedal arm; A cylindrical friction plate, wherein the cylindrical friction plate is fixedly sleeved on the first connecting shaft; The rotor located in the installation space has a sleeve hole at its rear end, which is rotatably fitted onto the cylindrical friction plate. The inner wall of the sleeve hole contacts the outer peripheral wall of the cylindrical friction plate to form a friction surface. The front end of the rotor is rotatably connected to the lower end of the connecting rod. A second groove is integrally formed between the rear end and the front end of the rotor. A spring, the upper end of which is connected to the first groove, and the lower end of which is connected to the second groove.

[0005] According to the present invention, an accelerator pedal is integrally formed by the housing and the first groove, eliminating the need for a traditional independent spring base, reducing the number of parts and lowering friction during assembly of multiple components; the cylindrical friction plate and the rotor are separated, eliminating the need for the existing two-color injection molding process, simplifying the mold structure and reducing manufacturing costs; the cylindrical friction plate is rotatably fitted into the rotor's socket, forming a precise friction surface, and the cylindrical friction plate is fixedly fitted onto the first connecting shaft and coaxially engaged with the rotor, ensuring uniform frictional contact and effectively eliminating excess friction area. This accelerator pedal has a simplified structure, reduced costs, and also reduces friction and frictional noise.

[0006] In addition, the accelerator pedal according to the above embodiments of this utility model may also have the following additional technical features: Optionally, a first boss is provided in the first groove, and the upper end of the spring is sleeved on the first boss.

[0007] Optionally, a second boss is provided in the second groove, and the lower end of the spring is sleeved on the second boss.

[0008] Optionally, the outer end of the socket is provided with an end cap.

[0009] Optionally, the front end of the rotor is provided with a second connecting shaft, and the lower end of the connecting rod is provided with a first slot that is adapted to the second connecting shaft.

[0010] Optionally, the housing is provided with a mounting groove and a second slot located in the mounting groove. The pedal arm is provided with an I-shaped plate, a buckle and a flexible connecting plate. The I-shaped plate is inserted into the mounting groove, and the buckle is engaged in the second slot to prevent the I-shaped plate from disengaging from the mounting groove. When the pedal arm is subjected to a stepping force, the flexible connecting plate deforms to allow the pedal arm to swing.

[0011] Optionally, the bottom of the connecting rod is further provided with a first limiting member, which is used to abut against the housing to limit the maximum lifting height of the rotor and the pedal arm.

[0012] Optionally, a second limiting member extends downward from one side of the pedal surface of the pedal arm, the second limiting member being used to abut against the housing to limit the extreme downward swing position of the pedal arm. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the accelerator pedal according to an embodiment of the present utility model; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 This is a partial structural diagram of the accelerator pedal according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the shell structure according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the pedal arm according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the connecting rod according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the structure of the cylindrical friction plate according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the rotor according to an embodiment of the present utility model; Figure 9 for Figure 8 A structural diagram from another perspective; Explanation of reference numerals in the attached figures: 1. Housing; 11. Installation space; 12. First connecting shaft; 13. First groove; 14. First boss; 15. Mounting groove; 16. Second slot; 2. Pedal arm; 21. I-beam; 22. Buckle; 23. Flexible connecting plate; 24. Second limiting member; 3. Connecting rod; 31. First limiting member; 32. First slot; 4. Cylindrical friction plate; 5. Rotor; 51. Sleeve hole; 52. Second groove; 53. Second boss; 54. End cap; 55. Second connecting shaft; 6. Spring. Detailed Implementation

[0014] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0015] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0016] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0017] The following is for reference. Figures 1-9 The implementation of the accelerator pedal proposed in the embodiments of this utility model will be described in detail.

[0018] The accelerator pedal according to an embodiment of the present invention includes: The housing 1 defines an installation space 11. A first connecting shaft 12 is fixedly provided on the inner side wall of the installation space 11, and a first groove 13 is integrally formed on the bottom wall of the installation space 11. The pedal arm 2 is located outside the mounting space 11 and is mounted on the housing 1. A connecting rod 3 is inserted into the installation space 11, and the upper end of the connecting rod 3 is rotatably connected to the pedal arm 2; a cylindrical friction plate 4 is fixedly sleeved on the first connecting shaft 12; The rotor 5 is located in the installation space 11. The rear end of the rotor 5 is provided with a sleeve hole 51. The sleeve hole 51 is rotatably fitted on the cylindrical friction plate 4. The inner side wall of the sleeve hole 51 contacts the outer peripheral wall of the cylindrical friction plate 4 to form a friction surface. The front end of the rotor 5 is rotatably connected to the lower end of the connecting rod 3. A second groove 52 is integrally formed between the rear end and the front end of the rotor 5. Spring 6, with its upper end connected to the first groove 13 and its lower end connected to the second groove 52.

[0019] In other words, the pedal arm 2 is located above the housing 1, and the rear end of the pedal arm 2 is connected to the rear end of the housing 1. The housing 1 is provided with an installation space 11, and a first connecting shaft 12 is provided on the inner wall of the installation space 11. The cylindrical friction plate 4 is coaxially sleeved on the first connecting shaft 12, so that the cylindrical friction plate 4 and the first connecting shaft 12 are relatively fixed. The rotor 5 is located in the installation space 11, and the rotor 5 is coaxially and rotatably sleeved on the cylindrical friction plate 4 through the sleeve hole 51, so that the rotor 5 can swing around the rotation axis of the cylindrical friction plate 4. When the rotor 5 swings, the inner wall of the sleeve hole 51 can form friction with the outer wall of the cylindrical friction plate 4. The restoring force of the rotor 5 swinging is realized by the spring 6, and the lower end of the spring 6 is connected to The spring 6 is integrally formed in the first groove 13 on the housing 1. The upper end of the spring 6 is connected to the second groove 52 on the rotor 5. The pedal arm 2 transmits force to the rotor 5 through the connecting rod 3, causing the rotor 5 to swing. The connecting rod 3 passes through the preset hole in the housing 1. The upper end of the connecting rod 3 is rotatably connected to the pedal arm 2 outside the mounting space 11, and the lower end of the connecting rod 3 is rotatably connected to the rotor 5 inside the mounting space 11. When the pedal arm 2 is stepped on, the front end of the rotor 5 is subjected to the force applied by the pedal arm 2. At the same time, the rotor 5 is subjected to the elastic force applied by the spring 6. The elastic force applied by the spring 6 can cause the lower part of the inner sidewall of the sleeve hole 51 to exert force toward the cylindrical friction plate 4. In this way, only a small amount of elastic force is converted into friction force.

[0020] The installation space 11 can be matched to the swing range of the rotor 5. The pedal arm 2 can be rotatably connected to the housing 1, or connected to the housing 1 using a flexible connector. The first connecting shaft 12 can be integrally formed on the housing 1. The second groove 52 can be set at the middle position in the length direction of the rotor 5. The connection between the connecting rod 3 and the rotor 5 can adopt the existing structure.

[0021] Therefore, the accelerator pedal is integrally formed by the housing 1 and the first groove 13, eliminating the need for the traditional independent spring 6 base, reducing the number of parts and reducing friction during assembly of multiple components; the cylindrical friction plate 4 and the rotor 5 are set separately, eliminating the need for the existing two-color injection molding process, simplifying the mold structure and reducing manufacturing costs; the cylindrical friction plate 4 is rotatably fitted with the sleeve hole 51 of the rotor 5, and the two form a precise friction surface, and the cylindrical friction plate 4 is fixedly fitted with the first connecting shaft 12 and coaxially cooperates with the rotor 5 to ensure uniform friction contact and effectively eliminate excess friction area. The accelerator pedal has a simplified structure, reduced cost, and also has the effect of reducing friction and friction noise.

[0022] Optionally, a first boss 14 is provided in the first groove 13, and the upper end of the spring 6 is sleeved on the first boss 14. Understandably, the first boss 14 at the center of the first groove 13 limits the inward and outward offset range of the upper end of the spring 6, thereby ensuring the reliability of the spring 6 connection and thus ensuring the stability of the friction system operation. The first boss 14 may be conical.

[0023] Optionally, a second boss 53 is provided within the second groove 52, and the lower end of the spring 6 is sleeved on the second boss 53. Understandably, the second boss 53, located at the center of the second groove 52, limits the inner and outer offset range of the upper end of the spring 6, thereby ensuring the reliability of the spring 6 connection and thus ensuring the stability of the friction system operation. The second boss 53 may be conical.

[0024] Optionally, an end cap 54 is provided at the outer end of the socket 51. Understandably, the end cap 54 not only isolates external dust, debris, and other impurities from entering the friction surface between the socket 51 and the cylindrical friction plate 4, ensuring the normal operation of the friction system; it also prevents the rotor 5 from axially shifting along the first connecting shaft 12, avoiding friction surface separation or reduced contact area, ensuring the friction system always operates stably; simultaneously, it enhances the structural strength of the socket 51, ensuring the service life of the rotor 5. The end cap 54 can be integrally formed on the rotor 5.

[0025] Optionally, the rotor 5 has a second connecting shaft 55 at its front end, and the lower end of the connecting rod 3 has a first slot 32 that mates with the second connecting shaft 55. Understandably, by using a rotating connection structure between the second connecting shaft 55 and the first slot 32, no additional bearings or bolts are needed; the rotational engagement between the connecting rod 3 and the rotor 5 can be achieved simply by the fit between the slot and the shaft. This significantly reduces the number of parts and assembly steps, lowering manufacturing costs and assembly complexity. The first slot 32 can be C-shaped, and the second connecting shaft 55 can be a complete cylinder or an incomplete cylinder exceeding a semicircle.

[0026] Optionally, the housing 1 has a mounting groove 15 and a second locking groove 16 located within the mounting groove 15. The pedal arm 2 has an I-shaped plate 21, a buckle 22, and a flexible connecting plate 23. The I-shaped plate 21 is inserted into the mounting groove 15, and the buckle 22 is engaged in the second locking groove 16 to prevent the I-shaped plate 21 from disengaging from the mounting groove 15. When the pedal arm 2 is subjected to a stepping force, the flexible connecting plate 23 deforms to allow the pedal arm 2 to swing. Understandably, the connection method of the I-shaped plate 21 and the buckle 22 eliminates the need for additional connecting parts such as bolts and rivets. The assembly of the pedal arm 2 and the housing 1 can be completed simply by insertion and snapping, significantly reducing the number of parts and assembly steps, and lowering manufacturing costs. At the same time, the flexible connecting plate 23 replaces the traditional rotating shaft structure, which not only meets the swinging requirements of the pedal arm 2 but also avoids the friction loss and noise problems of shaft connections. When the pedal arm 2 is subjected to a stepping force, the controllable deformation of the flexible connecting plate 23 can buffer the impact of stepping, making the swing more stable. After deformation, it can cooperate with the restoring force of the spring 6 to allow the pedal arm 2 to return to its original position. During installation, simply insert the I-shaped plate 21 into the mounting groove 15. When inserted into place, the buckle 22 automatically engages in the second slot 16 to prevent the pedal arm 2 from detaching from the housing 1. The second slot 16 and the mounting groove 15 can be integrally formed on the housing 1, and the I-shaped plate 21, the buckle 22, and the flexible connecting plate 23 can be integrally formed on the pedal arm 2.

[0027] Optionally, the bottom of the connecting rod 3 is also provided with a first limiting member 31, which abuts against the housing 1 to limit the maximum lifting height of the rotor 5 and the pedal arm 2. Understandably, by abutting against the housing 1 with the first limiting member 31, the rotor 5 is limited to a preset lifting height, ensuring that the spring 6 operates within its elastic deformation range, preventing excessive stretching of the spring 6 and friction surface offset. Simultaneously, it limits the maximum lifting height of the pedal arm 2, placing the pedal arm 2 at a comfortable pedaling angle. The first limiting member 31 can be integrally formed with the connecting rod 3, and can be located on the front and rear sides of the connecting rod 3, extending radially from the connecting rod 3.

[0028] Optionally, a second limiting member 24 extends downward from one side of the pedal surface of the pedal arm 2. The second limiting member 24 abuts against the housing 1 to limit the extreme downward swing position of the pedal arm 2. Understandably, if the pedal arm 2 swings excessively, it will push the rotor 5 to swing excessively through the connecting rod 3, causing the spring 6 to be over-compressed. This may not only exceed the elastic limit of the spring 6 and cause permanent deformation, but also cause a sudden increase in the pressure of the inner wall of the rear end sleeve hole 51 of the rotor 5 on the cylindrical friction plate 4, aggravating the wear of the friction surface and even generating abnormal friction noise. The second limiting member 24 can abut against the bottom plate of the housing 1 outside the mounting space 11 to achieve the lowest downward swing position of the pedal arm 2.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0034] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An accelerator pedal, characterized in that, include: The housing defines an installation space, a first connecting shaft is fixedly provided on the inner side wall of the installation space, and a first groove is integrally formed on the bottom wall of the installation space. A pedal arm located outside the mounting space, the pedal arm being mounted on the housing; A connecting rod that passes through the mounting space, the upper end of the connecting rod being rotatably connected to the pedal arm; A cylindrical friction plate, wherein the cylindrical friction plate is fixedly sleeved on the first connecting shaft; The rotor located in the installation space has a sleeve hole at its rear end, which is rotatably fitted onto the cylindrical friction plate. The inner wall of the sleeve hole contacts the outer peripheral wall of the cylindrical friction plate to form a friction surface. The front end of the rotor is rotatably connected to the lower end of the connecting rod. A second groove is integrally formed between the rear end and the front end of the rotor. A spring, the upper end of which is connected to the first groove, and the lower end of which is connected to the second groove.

2. The accelerator pedal as described in claim 1, characterized in that, The first groove is provided with a first boss, and the upper end of the spring is sleeved on the first boss.

3. The accelerator pedal as described in claim 1, characterized in that, The second groove is provided with a second protrusion, and the lower end of the spring is sleeved on the second protrusion.

4. The accelerator pedal as described in claim 1, characterized in that, The outer end of the socket is provided with an end cap.

5. The accelerator pedal as described in claim 1, characterized in that, The rotor has a second connecting shaft at its front end, and the lower end of the connecting rod has a first slot that is adapted to the second connecting shaft.

6. The accelerator pedal as described in claim 1, characterized in that, The housing is provided with a mounting groove and a second slot located in the mounting groove. The pedal arm is provided with an I-shaped plate, a buckle and a flexible connecting plate. The I-shaped plate is inserted into the mounting groove, and the buckle is engaged in the second slot to prevent the I-shaped plate from detaching from the mounting groove. When the pedal arm is subjected to a stepping force, the flexible connecting plate deforms to allow the pedal arm to swing.

7. The accelerator pedal as described in claim 1, characterized in that, The bottom of the connecting rod is also provided with a first limiting member, which is used to abut against the housing to limit the maximum lifting height of the rotor and the pedal arm.

8. The accelerator pedal as described in claim 1, characterized in that, A second limiting member extends downward from one side of the pedal surface of the pedal arm. The second limiting member abuts against the housing to limit the extreme downward swing position of the pedal arm.

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