Single-peak dust cover

Abstract

The utility model relates to the field of automobile parts, in particular to a single-peak dust cover which comprises a cover body, the cover body comprises a first sealing part, a second sealing part and a connecting part, one end of the connecting part is connected to the first sealing part, the other end of the connecting part is connected to the second sealing part, and an inner cavity of the connecting part communicates with an inner cavity of the first sealing part and an inner cavity of the second sealing part. An opening of the first sealing part is smaller than an opening of the second sealing part, and a plurality of anti-abrasion strips are connected to the peripheral face of the connecting part at intervals. Through the arrangement of the anti-abrasion strips, the surfaces of the anti-abrasion strips are used for resisting external impact, so that the connecting parts are not prone to being abraded due to the external impact, the operation stability of the tripod bearing and the bell housing is guaranteed, the replacement frequency of the single-peak dust cover is reduced, and the service life of the single-peak dust cover is prolonged.

Description

Technical Field

[0001] This application relates to the field of automotive parts, and in particular to a single-peak dust cover. Background Technology

[0002] Dust covers are items that serve to prevent dust. In automobiles, the two ends of the dust cover are fixed to the outside of the bell-shaped housing and the bearing of the three ball pins by clamps, thereby preventing external sand and debris from entering the bell-shaped housing and affecting the use of the constant velocity universal joint.

[0003] Dust covers are easily worn down by external impacts during use. Sand and gravel impurities can enter the inner cavity of the dust cover through the damaged parts, interfering with the operation of the three-ball bearing and the outer side of the bell-shaped housing. Damaged dust covers need to be replaced, thus reducing their service life. Utility Model Content

[0004] To address the issue of dust cover lifespan, this application provides a single-peak dust cover.

[0005] This application provides a single-peak dust cover, which adopts the following technical solution:

[0006] A single-peak dust cover includes a cover body, the cover body including a sealing part one, a sealing part two, and a connecting part. One end of the connecting part is connected to the sealing part one, and the other end of the connecting part is connected to the sealing part two. The inner cavity of the connecting part communicates with the inner cavity of the sealing part one and the inner cavity of the sealing part two. The opening of the sealing part one is smaller than the opening of the sealing part two. Multiple anti-wear strips are spaced apart on the outer circumferential surface of the connecting part.

[0007] By adopting the above technical solution, one end of the connecting part is connected between sealing part one and sealing part two, and the opening of sealing part one is smaller than the opening of sealing part two. Sealing part one is used to cover smaller components such as three-ball bearings, and sealing part two is used to cover larger components such as bell-shaped housings. Multiple anti-wear strips are connected at intervals on the outer circumference of the connecting part to increase the thickness of the connecting part. The surface of the anti-wear strips is used to resist external impacts, making the connecting part less susceptible to wear from external impacts, thereby ensuring the stability of the operation of the three-ball bearings and bell-shaped housings, reducing the number of times the single-peak dust cover needs to be replaced, and thus extending the service life of the single-peak dust cover.

[0008] Optionally, the surface of the anti-wear strip away from the connecting part is provided with an anti-wear surface, which is in the shape of a rounded convexity.

[0009] By adopting the above technical solution, the anti-wear surface is convex in an arc shape, which reduces the direct collision between the anti-wear strip and the contact surface of external impact, reduces the wear on the anti-wear strip, and further extends the service life of the single-peak anti-wear strip.

[0010] Optionally, the connecting part includes a supporting section, a deformable section, and a fixing section. One end of the deformable section is connected to the end face of the fixing section, and the other end of the deformable section is connected to the end face of the supporting section. The end of the supporting section away from the deformable section is connected to the two end faces of the sealing part. The end of the fixing section away from the deformable section is connected to one end face of the sealing part. The outer diameter of the supporting section is larger than the outer diameter of the fixing section, and the anti-wear strip is connected to the end face of the supporting section that protrudes from the deformable section.

[0011] By adopting the above technical solution, the outer diameter of the support section is larger than that of the fixed section, and the anti-wear strip is connected to the end face of the protruding deformation section of the support section, so that the anti-wear strip is located at the position of the single-peak dust cover most susceptible to external impact, thereby achieving centralized protection of the support section and improving the wear resistance of the single-peak dust cover.

[0012] Optionally, the deformable segment has a deformable surface on its surface, the deformable surface is arc-shaped, and the centerline of the deformable surface faces the fixed segment.

[0013] By adopting the above technical solution, the deformable surface is arc-shaped and the centerline of the deformable surface is oriented towards the fixed section. The deformable surface can optimize the stress distribution, reduce local stress concentration, and thus improve the overall stability of the single-peak dust cover.

[0014] Optionally, a fixing ring groove for inserting a clamp is provided on the outer peripheral surface of the sealing part.

[0015] By adopting the above technical solution, the clamp is embedded in the fixing ring groove, and the inner wall of the fixing ring groove abuts against the outer wall of the clamp to form a positioning, thereby facilitating the installation of the sealing part on the three-ball pin bearing and improving the installation efficiency of the single-peak dust cover.

[0016] Optionally, the outer circumferential surface of the sealing part two is provided with a fixing ring groove two for the clamp to be inserted.

[0017] By adopting the above technical solution, the clamp is embedded in the second fixing ring groove, and the inner wall of the second fixing ring groove abuts against the outer wall of the clamp to form a positioning, thereby facilitating the installation of the second sealing part on the bell-shaped shell, and further improving the installation efficiency of the single-peak dust cover.

[0018] Optionally, a sealing ring is fixed to the inner wall of the sealing part near the fixing ring groove, and the surface of the sealing ring can press against the outer peripheral surface of the three-ball pin bearing to form a seal.

[0019] By adopting the above technical solution, the sealing ring is located on the inner wall of the sealing part near the fixed ring groove. The clamp applies pressure to the inner wall of the fixed ring groove, causing the inner wall of the sealing part and the three ball pin bearing to clamp the two sides of the sealing ring to form a seal, thereby improving the sealing efficiency of the single-peak dust cover.

[0020] Optionally, a sealing ring is fixed to the inner wall of the sealing part two near the fixing ring groove two, and the surface of the sealing ring two can press against the outer peripheral surface of the bell-shaped shell to form a seal.

[0021] By adopting the above technical solution, the second sealing ring is located on the inner wall of the second sealing part near the second fixed ring groove. The clamp applies pressure to the inner wall of the second fixed ring groove, causing the inner wall of the second sealing part and the surface of the bell-shaped shell to clamp the two sides of the second sealing ring to form a seal, thereby further improving the sealing efficiency of the single-peak dust cover.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The anti-wear strip is designed to resist external impacts, making the connection less susceptible to wear from external impacts. This ensures the stability of the three-ball bearing and bell housing, reduces the frequency of replacement of the single-peak dust cover, and extends the service life of the single-peak dust cover.

[0024] 2. The anti-wear surface reduces direct collision between the anti-wear strip and the contact surface of external impact, reduces wear on the anti-wear strip, and further extends the service life of the single-peak anti-wear strip;

[0025] 3. The design of the support section, deformation section, and fixing section ensures that the anti-wear strip is located at the position of the single-peak dust cover most susceptible to external impact, thereby achieving centralized protection of the support section and improving the wear resistance of the single-peak dust cover. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application.

[0027] Figure 2 This is a cross-sectional view of an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Cover body; 11. Sealing part one; 111. Fixing ring groove one; 12. Sealing part two; 121. Fixing ring groove two; 13. Connecting part; 131. Support section; 132. Deformation section; 1321. Deformation surface; 133. Fixing section; 2. Anti-wear strip; 21. Anti-wear surface; 3. Sealing ring one; 31. Sealing surface; 4. Sealing ring two. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0030] This application discloses a single-peak dust cover. (Refer to...) Figure 1 and Figure 2The single-peak dust cover includes a cover body 1, which includes a sealing part 11, a sealing part 2 12, and a connecting part 13. The connecting part 13 includes a support section 131, a deformation section 132, and a fixing section 133. In this embodiment, the support section 131, the deformation section 132, and the fixing section 133 are all annular. The outer diameter of the support section 131 is larger than the outer diameter of the fixing section 133. One end of the deformation section 132 along the axial direction is integrally formed and fixed to the end face of the fixing section 133, and the other end of the deformation section 132 along the axial direction is integrally formed and fixed to the end face of the support section 131. The end face of the deformation section 132 is provided with a deformation surface 1321, which is arc-shaped, and the centerline of the deformation surface 1321 faces the fixing section 133.

[0031] Reference Figure 1 and Figure 2 Multiple anti-wear strips 2 are integrally formed and fixed on the end face of the protruding deformation section 132 of the support section 131. The multiple anti-wear strips 2 are evenly distributed around the axis of the support section 131. The end face of the anti-wear strip 2 away from the support section 131 is provided with an anti-wear surface 21. The anti-wear surface 21 is in the shape of a round arc protrusion, so that the anti-wear strip 2 is located at the position of the single-peak dust cover most susceptible to external impact, thereby achieving concentrated protection of the support section 131 and improving the wear resistance of the single-peak dust cover.

[0032] Reference Figure 1 and Figure 2 The opening of sealing part 11 is smaller than the opening of sealing part 2 12. The end of the support section 131 away from the deformation section 132 along its axis is integrally formed and fixed to the end face of sealing part 2 12. The end of the fixing section 133 away from the deformation section 132 along its axis is integrally formed and fixed to the end face of sealing part 11. The inner cavity of sealing part 11 is used to cover the three-ball pin bearing. A fixing ring groove 111 for clamping is coaxially formed on the outer circumferential surface of sealing part 11. The inner wall of fixing ring groove 111 abuts against the surface of clamping to form positioning, thereby facilitating the fixing of sealing part 11 on the three-ball pin bearing. Simultaneously, a sealing ring 3 is integrally formed and fixed on the inner wall of the sealing part 11 near the fixing ring groove 111. The end face of the sealing ring 3 facing the axis of the sealing part 11 is provided with a sealing surface 31, which is arc-shaped and convex. When the clamp is embedded in the fixing ring groove 111 and the sealing part 11 is clamped and fixed to the outer circumferential surface of the three-ball pin bearing, the inner wall of the sealing part 11 and the outer circumferential surface of the three-ball pin bearing squeeze both sides of the sealing ring 3. The sealing surface 31 is deformed under pressure and presses against the outer circumferential surface of the three-ball pin bearing to form a seal, thereby improving the sealing effect of the single-peak dust cover.

[0033] Reference Figure 1 and Figure 2The inner cavity of the sealing part 12 is used to cover the bell-shaped shell. The outer circumferential surface of the sealing part 12 is coaxially provided with a fixing ring groove 121 for the clamp to be inserted. The inner wall of the fixing ring groove 121 abuts against the surface of the clamp to form a positioning, thereby facilitating the fixing of the sealing part 12 on the bell-shaped shell. At the same time, a sealing ring 4 is integrally formed and fixed coaxially near the inner wall of the fixing ring groove 121. When the clamp is inserted into the fixing ring groove 121 and the sealing part 12 is clamped and fixed to the outer circumferential surface of the bell-shaped shell, the inner wall of the sealing part 12 and the outer circumferential surface of the bell-shaped shell squeeze the two sides of the sealing ring 4. The surface of the sealing ring 4 is deformed by pressure and abuts against the outer circumferential surface of the bell-shaped shell to form a seal, thereby improving the sealing effect of the single-peak dust cover.

[0034] The implementation principle of a single-peak dust cover according to an embodiment of this application is as follows: the opening of the sealing part 11 is smaller than the opening of the sealing part 12. The sealing part 11 is used to cover smaller components such as the three-ball bearing, and the sealing part 12 is used to cover larger components such as the bell-shaped shell. The outer diameter of the support section 131 is larger than the outer diameter of the fixed section 133. Multiple anti-wear strips 2 are connected at intervals to the end face of the protruding deformation section 132 of the support section 131, so that the anti-wear strips 2 are located at the position of the single-peak dust cover most susceptible to external impact, thereby achieving concentrated protection of the support section 131 and improving the wear resistance of the single-peak dust cover. The surface of the anti-wear strips 2 is used to resist external impact, making the single-peak dust cover less susceptible to wear from external impact, thereby ensuring the stability of the operation of the three-ball bearing and the bell-shaped shell, reducing the number of times the single-peak dust cover needs to be replaced, and thus extending the service life of the single-peak dust cover.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A single-peak dust cover, characterized in that: The cover (1) includes a sealing part (11), a sealing part (12) and a connecting part (13). One end of the connecting part (13) is connected to the sealing part (11), and the other end of the connecting part (13) is connected to the sealing part (12). The inner cavity of the connecting part (13) is connected to the inner cavity of the sealing part (11) and the inner cavity of the sealing part (12). The opening of the sealing part (11) is smaller than the opening of the sealing part (12). Multiple anti-wear strips (2) are connected at intervals on the outer peripheral surface of the connecting part (13).

2. The single-peak dust cover according to claim 1, characterized in that: The surface of the anti-wear strip (2) away from the connecting part (13) is provided with an anti-wear surface (21), and the anti-wear surface (21) is in the shape of a rounded protrusion.

3. The single-peak dust cover according to claim 1, characterized in that: The connecting part (13) includes a supporting section (131), a deformable section (132) and a fixed section (133). One end of the deformable section (132) is connected to the end face of the fixed section (133), and the other end of the deformable section (132) is connected to the end face of the supporting section (131). The end of the supporting section (131) away from the deformable section (132) is connected to the end face of the second sealing part (12). The end of the fixed section (133) away from the deformable section (132) is connected to the end face of the first sealing part (11). The outer diameter of the supporting section (131) is larger than the outer diameter of the fixed section (133), and the anti-wear strip (2) is connected to the end face of the supporting section (131) that protrudes from the deformable section (132).

4. The single-peak dust cover according to claim 3, characterized in that: The deformable segment (132) has a deformable surface (1321) on its surface. The deformable surface (1321) is arc-shaped and the axis of the deformable surface (1321) faces the fixed segment (133).

5. The single-peak dust cover according to claim 1, characterized in that: The outer peripheral surface of the sealing part (11) is provided with a fixing ring groove (111) for the clamp to be inserted.

6. The single-peak dust cover according to claim 1, characterized in that: The outer circumferential surface of the sealing part 2 (12) is provided with a fixing ring groove 2 (121) for the clamp to be inserted.

7. The single-peak dust cover according to claim 5, characterized in that: The sealing part (11) is fixed with a sealing ring (3) near the inner wall of the fixing ring groove (111), and the surface of the sealing ring (3) can press against the outer peripheral surface of the three ball pin bearing to form a seal.

8. The single-peak dust cover according to claim 6, characterized in that: The sealing part 2 (12) is fixed with a sealing ring 2 (4) near the inner wall of the fixing ring groove 2 (121), and the surface of the sealing ring 2 (4) can press against the outer peripheral surface of the bell-shaped shell to form a seal.

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