Multifunctional bushing for pedal structure

Abstract

The utility model discloses a multifunctional bushing for a pedal structure, which comprises a hollow cylinder body, a plurality of cavities are circumferentially distributed on the end face of the cylinder body, a plurality of reinforcing ribs are circumferentially and uniformly distributed on the inner side face and the outer side face of the cylinder body, the cavities and the reinforcing ribs are oppositely arranged, a plurality of convex blocks are circumferentially distributed on the edge of the cavity end of the cylinder body, and the convex blocks are arranged on the inner side face and the outer side face of the cylinder body. The radial ends of the protruding blocks extend to form concentric arc-shaped strips, the arc-shaped strips are inclined, and the adjacent arc-shaped strips are symmetrical. According to the utility model, the problems of clamping stagnation and shaking in the radial direction and the axial direction can be effectively solved, and the operation driving experience of a driver is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive brake and clutch pedal components, and in particular a multifunctional bushing for pedal structure. Background Technology

[0002] With the rapid development of China's automotive industry, people have increasingly higher demands for vehicle reliability, comfort, and safety. Automotive structural design has also shifted from a rough-and-ready approach to a more refined one. As a crucial tool for drivers to transmit commands, the car's pedals also require increasingly sophisticated and refined design.

[0003] like Figure 1 As shown, the traditional bushing structure mainly consists of a hollow cylinder 1 and an annular skirt 2 forming a boss-like structure. In the pedal structure, the traditional bushing does not have the function of compensating for clearance and eliminating interference fit; if the clearance between the central shaft and the shaft tube in the pedal structure is too small, the bushing is prone to jamming, resulting in high pedal movement resistance, severe bushing wear, and a significantly shortened lifespan; if the clearance between the central shaft and the shaft tube in the pedal structure is too large, the bushing is prone to loosening and abnormal noise, causing the pedal to be loose and wobbly. Utility Model Content

[0004] This utility model provides a multifunctional bushing for pedal structures, aiming to solve the problem that traditional bushings do not have the ability to compensate for gaps and eliminate interference fits.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a multifunctional bushing for a pedal structure, comprising a hollow cylinder, characterized in that: multiple cavities are circumferentially distributed on the end face of the cylinder, multiple reinforcing ribs are evenly distributed on the inner and outer sides of the cylinder, the cavities and reinforcing ribs are arranged opposite to each other, multiple protrusions are circumferentially distributed at the edge of the cavity end of the cylinder, and concentric arc-shaped strips extend from the radial ends of the protrusions, the arc-shaped strips are inclined, and adjacent arc-shaped strips are symmetrical.

[0006] The above technical solution is further defined as follows: the outer diameter of the cylinder is Φ=16~17mm, and the inner diameter is Φ=13~14mm.

[0007] The above technical solution is further specified in that the cavity thickness is 1 to 1.2 mm.

[0008] The above technical solution is further specified in that the thickness of the reinforcing rib is 0.2 to 0.3 mm.

[0009] The above technical solution is further defined as follows: the outer diameter of the protrusion and the arc strip is Φ=20~22mm, and the spacing between adjacent arc strips is 2~3mm.

[0010] To further define the above technical solution, the other end of the cylinder is conical.

[0011] To further define the above technical solution, the cylindrical body, reinforcing ribs, protrusions, and arc-shaped strips are a single unit, made of POM material.

[0012] Beneficial effects: 1) The cavity structure eliminates the radial interference fit between the central shaft and the shaft tube, solving the problem of pedal assembly jamming; the arrangement of reinforcing ribs compensates for radial clearance and enhances the strength of the bushing, thus improving the service life of the bushing and making the shaft tube less prone to shaking, resulting in a tight fit and greatly improving the assembly efficiency of the pedal; 2) The distribution structure of the arc-shaped strips can eliminate or compensate for axial clearance, solving the problem of pedal jamming and shaking during axial assembly, greatly improving assembly efficiency; 3) This utility model can effectively solve the problems of radial and axial jamming and shaking, improving the driver's operating and driving experience. Attached Figure Description

[0013] Figure 1 This is a structural diagram from the background technology.

[0014] Figure 2 This utility model is a three-dimensional Figure 1 .

[0015] Figure 3 This utility model is a three-dimensional Figure 3 .

[0016] Figure 4 This is a state diagram of the arc-shaped strip in this utility model. Detailed Implementation

[0017] like Figure 2 , Figure 3 and Figure 4 As shown, a multifunctional bushing for a pedal structure includes a hollow cylinder 1. Six cavities 3 are circumferentially distributed on the end face of the cylinder. Multiple reinforcing ribs 4 are evenly distributed circumferentially on both the inner and outer sides of the cylinder. The cavities and reinforcing ribs are arranged opposite each other. This allows the cavities to be compressed during the assembly of the shaft tube and central shaft if the radial clearance is insufficient, ensuring uniform and tight contact between the bushing and the shaft tube / central shaft, preventing assembly jamming. If the clearance between the shaft tube and central shaft is too large, the reinforcing ribs can compensate for some of the dimensional changes, eliminating the risk of loosening. Three protrusions 5 are circumferentially distributed at the edge of the cavity end of the cylinder. Each of the protrusions has concentric arc-shaped strips 6 extending from its radial end. The arc-shaped strips are inclined and adjacent arc-shaped strips are symmetrical. Each protrusion has two arc-shaped strips, thus forming a three-section flange skirt. When the axial clearance between the shaft tube and the central shaft needs to be adjusted, the three-section flange skirt can be squeezed or loosened along the axial direction to reduce or increase the inclination angle between the flange skirt end face and the cylinder end face, thereby changing the bushing's own axial clearance and compensating for the axial assembly dimensions. This can eliminate interference and clearance in the axial direction, effectively preventing the driver's comfort from being affected by the inflexible movement of the pedal.

[0018] The outer diameter of the cylinder is Φ=17mm, and the inner diameter is Φ=13mm; the cavity thickness is 1.2mm; the reinforcing rib thickness is 0.2mm; the outer diameter of the protrusion and the arc strip is Φ=21mm, and the spacing between adjacent arc strips is 2mm;

[0019] like Figure 2 , Figure 3 and Figure 4 As shown, the other end of the cylinder 1 is conical, and the conical shape has a guiding function, which facilitates the insertion of the cylinder into the shaft tube;

[0020] like Figure 2 , Figure 3 and Figure 4 As shown, the cylinder 1, reinforcing rib 4, protrusion 5 and arc strip 6 are an integral unit made of POM material; the integral structure is easy to produce and helps to reduce production costs; POM material has good wear resistance and strong stability.

[0021] Assembly Instructions: The bushing designed in this utility model is installed between the central shaft and the shaft tube of the brake pedal arm to solve the interference and clearance problems between the central shaft and the shaft tube; the circumferentially distributed inclined arc strips act like springs, so the deformation of the arc strips can be flexibly adjusted according to the tightness of the assembly.

Claims

1. A multifunctional bushing for a pedal structure, comprising a hollow cylinder, characterized in that: There are multiple cavities distributed circumferentially on the end surface of the cylinder, and multiple reinforcing ribs are evenly distributed circumferentially on the inner and outer side surfaces of the cylinder. The cavities and the reinforcing ribs are arranged opposite to each other. There are multiple protrusions distributed circumferentially at the edge of the cavity end of the cylinder, and concentric arc strips are extended from the radial ends of the protrusions. The arc strips are inclined and adjacent arc strips are symmetrical.

2. A multifunctional bushing for a pedal structure according to claim 1, characterized in that: The outer diameter of the cylinder is Φ=16-17 mm, and the inner diameter is Φ=13-14 mm.

3. A multifunctional bushing for a pedal structure according to claim 1 or 2, characterized in that: The thickness of the cavity is 1 to 1.2 mm.

4. A multifunctional bushing for a pedal structure according to claim 3, characterized in that: The reinforcing rib has a thickness of 0.2 to 0.3 mm.

5. A multifunctional bushing for a pedal structure according to claim 1, 2 or 4, characterized in that: The outer diameter of the protrusion and the arc strip is Φ=20-22 mm, and the spacing between adjacent arc strips is 2-3 mm.

6. A multifunctional bushing for a pedal structure according to claim 5, characterized in that: The other end of the cylinder is in a cone shape.

7. A multifunctional bushing for a pedal structure according to claim 1 or 2 or 4 or 6, characterized in that: The cylinder, the reinforcing ribs, the convex blocks and the arc strips are integrated into one body and are made of POM material.

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