Steering engine sensor cover capable of preventing FOD rubber part lip edge from sliding

Abstract

The utility model relates to the technical field of automobile steering systems, in particular to a steering engine sensor cover capable of preventing an FOD rubber part lip from sliding, which comprises a sensor cover body, a boss ring and a plurality of convex inclined planes, the boss ring is arranged on the end face of the sensor cover body, and the convex inclined planes are arranged on the end face of the sensor cover body. The convex inclined planes are arranged between the boss ring and the edge of the sensor cover body, and the sections of the convex inclined planes are zigzag. Compared with the prior art, the outer side of the boss ring of the sensor cover body is additionally provided with a plurality of rings of convex inclined surfaces, so that the risk of sealing failure caused by outward sliding of an FOD rubber part during compression is reduced, and the installability is improved; the convex inclined surface with the sawtooth structure increases the effective length of the sealing surface, reduces the width of the end surface of the sensor cover body, and improves the sealing performance and economical efficiency of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile steering systems, in particular to a steering sensor cover which prevents the lip edge of a FOD rubber piece from slipping. Background Art

[0002] In the automotive field, for the entire vehicle under-steering system: FOD is generally a rubber part, such as Figure 1 As shown, the FOD rubber part 2 is installed between the front visor 1 of the whole vehicle and the steering gear sensor cover 3, and is compressed between the front visor 1 of the whole vehicle and the steering gear sensor cover 3 to achieve sealing between the lower steering and the vehicle cockpit.

[0003] In the actual process of loading, the FOD rubber parts are prone to deformation due to insufficient sealing width or uneven force between the FOD rubber parts and the steering gear sensor cover, which causes the lower lip of the FOD rubber parts to slide outward and collapse. After the rubber lip of the FOD rubber parts seal slides outward, it is easy to cause the FOD rubber parts sealing step to flip to the bottom of the steering gear sensor cover end face, causing sealing failure. When the whole vehicle wades, the water will flow into the cockpit along the gap between the FOD lip and the steering gear sensor cover. In severe cases, it will cause EPS hardware failure, loss of power assistance, and cause a vehicle safety accident.

[0004] Therefore, it is necessary to design a steering gear sensor cover that prevents the lip of the FOD rubber part from slipping, so as to limit the sealing failure caused by the deformation and slippage of the lip of the FOD rubber part and improve the installability and sealing effectiveness. Summary of the invention

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a steering gear sensor cover that prevents the lip of the FOD rubber part from slipping, so as to limit the sealing failure caused by the deformation and slippage of the lip of the FOD rubber part and improve the installability and sealing effectiveness.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a steering gear sensor cover for preventing the lip of an FOD rubber part from slipping, comprising a sensor cover body, a boss ring, and a raised inclined surface. The end surface of the sensor cover body is provided with a boss ring, and several circles of raised inclined surfaces are arranged on the end surface of the sensor cover body and are located between the boss ring and the edge of the sensor cover body. The cross-sections of the several circles of raised inclined surfaces are serrated.

[0007] A FOD rubber piece is installed on the end surface of the sensor cover body, and the raised inclined surface presses against the contact surface of the FOD rubber piece, and the contact surface of the FOD rubber piece is compressed into a serrated shape.

[0008] The raised inclined surface includes an outer inclined surface and an inner inclined surface, wherein the inner inclined surface is close to the boss ring, the outer inclined surface is close to the edge of the sensor cover body, and the upper end of the outer inclined surface is connected to the upper end of the inner inclined surface.

[0009] The inclination angle of the outer inclined surface is smaller than the inclination angle of the inner inclined surface.

[0010] The included angle between the outer inclined surface and the inner inclined surface is an obtuse angle.

[0011] The connection between the outer inclined surface and the inner inclined surface is an arc structure.

[0012] The end surface of the sensor cover body is provided with a square protrusion structure, and the square protrusion structure is located on the inner side of the boss ring.

[0013] Compared with the prior art, the utility model adds several circles of raised inclined surfaces on the outer side of the boss circle of the sensor cover body, thereby reducing the risk of sealing failure caused by outward sliding of the FOD rubber part when compressed, and improving the installability; the raised inclined surface with a serrated structure increases the effective length of the sealing surface, reduces the end face width of the sensor cover body, and improves the sealing and economy of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the installation position of the FOD rubber part in the prior art.

[0015] Figure 2 It is a schematic diagram of the utility model.

[0016] Figure 3 It is a cross-sectional view of the utility model after installation with the FOD rubber part.

[0017] Figure 4 This is an enlarged view of the cooperation between the raised inclined surface and the FOD rubber part of the utility model.

[0018] Figure 5 It is the force diagram of the fitting place between the utility model and the FOD rubber part. Implementation

[0019] The utility model is now further described with reference to the accompanying drawings.

[0020] See also Figure 2 , Figure 3 and Figure 4 The utility model is a steering gear sensor cover for preventing the lip of a FOD rubber part from slipping, comprising a sensor cover body, a boss ring, and a raised inclined surface. The end surface of the sensor cover body 31 is provided with a boss ring 32, and a plurality of raised inclined surfaces 33 are arranged on the end surface of the sensor cover body 31 and are located between the boss ring 32 and the edge of the sensor cover body 31. The cross-sections of the plurality of raised inclined surfaces 33 are sawtooth-shaped.

[0021] A FOD rubber part 2 is installed on the end face of the sensor cover body 31, and the raised inclined surface 33 presses against the contact surface of the FOD rubber part 2. The contact surface of the FOD rubber part 2 is compressed into a serrated shape, thereby limiting the deformation of the lip of the FOD rubber part 2 and sliding outward to avoid sealing failure.

[0022] The raised inclined surface 33 includes an outer inclined surface 331 and an inner inclined surface 332 . The inner inclined surface 332 is close to the boss ring 32 , and the outer inclined surface 331 is close to the edge of the sensor cover body 31 . The upper end of the outer inclined surface 331 is connected to the upper end of the inner inclined surface 332 .

[0023] The inclination angle β of the outer inclined surface 331 is smaller than the inclination angle α of the inner inclined surface 332 .

[0024] The angle θ between the outer inclined surface 331 and the inner inclined surface 332 is an obtuse angle. The connection between the outer inclined surface 331 and the inner inclined surface 332 is an arc structure to prevent the FOD rubber member 2 from being cut.

[0025] A square protrusion structure 34 is provided on the end surface of the sensor cover body 31 . The square protrusion structure 34 is located on the inner side of the boss ring 32 . The square protrusion structure 34 can resist the torsional deformation of the FOD rubber part 2 .

[0026] See also Figure 5 Assuming that the force of the FOD rubber part 2 acting on the outer inclined surface 331 and the inner inclined surface 332 is F, the outer inclined surface 331 decomposes the force F into F3 and F4, and the inner inclined surface 332 decomposes the force F into F1 and F2. Since the inclination angle β of the outer inclined surface 331 is smaller than the inclination angle α of the inner inclined surface 332, the inner inclined surface 332 has a larger force Fb to resist the deformation and sliding of the FOD rubber part 2 to the outside, and the outer inclined surface 331 will have a smaller component force Fa to support the deformation and sliding of the FOD rubber part 2 to the outside. Therefore, this structure can effectively prevent the lip edge of the FOD rubber part 2 from deforming and sliding to the outside.

[0027] The more the number of raised bevel surfaces 33 is, the greater the resistance to deformation along the X direction is, and the more conducive it is to preventing the lip of the FOD rubber part 2 from deforming and slipping. The serrated raised bevel surfaces 33 greatly increase the effective length of the sealing surface, which is conducive to increasing the effectiveness of physical waterproofing, improving the sealing performance of the FOD rubber part 2 and the steering gear sensor cover 3, and avoiding steering system failure due to leakage during wading.

[0028] See also Figure 4 The precision requirement for the joint between the raised inclined surface and the FOD rubber part is not high, and it can be mass-produced through the mold.

[0029] The utility model adds several circles of raised inclined surfaces on the outer side of the boss circle of the sensor cover body, thereby reducing the risk of sealing failure caused by outward sliding of the FOD rubber part when compressed, and improving the installability; the raised inclined surfaces with a serrated structure increase the effective length of the sealing surface, reduce the end face width of the sensor cover body, and improve the sealing and economy of the product.

Claims

1. A steering gear sensor cover for preventing the lip of a FOD rubber part from slipping, comprising a sensor cover body, a boss ring, and a raised inclined surface, wherein the end surface of the sensor cover body (31) is provided with a boss ring (32), characterized in that: A plurality of raised inclined surfaces (33) are arranged on the end surface of the sensor cover body (31) and are located between the boss ring (32) and the edge of the sensor cover body (31); the cross-sections of the plurality of raised inclined surfaces (33) are sawtooth-shaped; An FOD rubber piece (2) is mounted on the end surface of the sensor cover body (31), and the raised inclined surface (33) abuts against a contact surface of the FOD rubber piece (2), so that the contact surface of the FOD rubber piece (2) is compressed into a sawtooth shape.

2. A steering gear sensor cover for preventing the lip of a FOD rubber part from slipping according to claim 1, characterized in that: The raised inclined surface (33) comprises an outer inclined surface (331) and an inner inclined surface (332), wherein the inner inclined surface (332) is close to the boss ring (32), and the outer inclined surface (331) is close to the edge of the sensor cover body (31), and the upper end of the outer inclined surface (331) is connected to the upper end of the inner inclined surface (332).

3. A steering gear sensor cover for preventing the lip of a FOD rubber part from slipping according to claim 2, characterized in that: The inclination angle (β) of the outer inclined surface (331) is smaller than the inclination angle (α) of the inner inclined surface (332).

4. A steering gear sensor cover for preventing the lip of a FOD rubber part from slipping according to claim 2, characterized in that: The included angle (θ) between the outer inclined surface (331) and the inner inclined surface (332) is an obtuse angle.

5. The steering gear sensor cover for preventing the lip of the FOD rubber part from slipping according to claim 2, characterized in that: The connection between the outer inclined surface (331) and the inner inclined surface (332) is an arc structure.

6. The steering gear sensor cover for preventing the lip of the FOD rubber part from slipping according to claim 1, characterized in that: The end surface of the sensor cover body (31) is provided with a square protrusion structure (34), and the square protrusion structure (34) is located on the inner side of the boss ring (32).

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