CN219529832U - Axial waterproof input shaft protective cap - Google Patents
Axial waterproof input shaft protective cap Download PDFInfo
- Publication number
- CN219529832U CN219529832U CN202320089705.XU CN202320089705U CN219529832U CN 219529832 U CN219529832 U CN 219529832U CN 202320089705 U CN202320089705 U CN 202320089705U CN 219529832 U CN219529832 U CN 219529832U
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- input shaft
- protective cap
- cap body
- plastic
- rubber
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Abstract
The utility model relates to the technical field of automobile steering, in particular to an axial waterproof input shaft protective cap which comprises a plastic protective cap body and a rubber protective sleeve, wherein the plastic protective cap body is sleeved outside an input shaft, the rubber protective sleeve is sleeved outside the upper end of the plastic protective cap body, the lower part of the rubber protective sleeve is in threaded connection with the plastic protective cap body, and the upper end of the rubber protective sleeve is in interference fit with the input shaft. Compared with the prior art, the rubber protective sleeve is additionally arranged at the upper end of the plastic protective cap body, so that the axial waterproof of the input shaft is realized, the axial water inflow and corrosion of the input shaft are avoided, and the safety performance of the whole automobile is further improved.
Description
Technical Field
The utility model relates to the technical field of automobile steering, in particular to an axial waterproof input shaft protective cap.
Background
In the existing steering gear design, a rubber protective cap is adopted for the protective cap at the input shaft, and the dustproof effect is realized through the cooperation of the upper end face of the rubber protective cap and the input shaft. However, the rubber protective cap is easy to deform in high-temperature, high-humidity and grease environments, so that gaps are formed at the matching positions of the input shaft and the rubber protective cap, water inflow is easy to occur, the service time of the whole vehicle is prolonged, and the input shaft and the oil seal are easy to corrode, so that the use safety of the whole vehicle is affected.
Therefore, it is necessary to design an axial waterproof input shaft protection cap to ensure the sealing between the input shaft and the protection cap, thereby avoiding axial water inflow and corrosion and improving the safety performance.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides an axial waterproof input shaft protective cap so as to ensure the sealing between an input shaft and the protective cap, thereby avoiding axial water inflow and corrosion and improving the safety performance.
In order to achieve the above purpose, the utility model provides an axial waterproof input shaft protective cap, which comprises a plastic protective cap body and a rubber protective sleeve, wherein the plastic protective cap body is sleeved outside an input shaft, the rubber protective sleeve is sleeved outside the upper end of the plastic protective cap body, the lower part of the rubber protective sleeve is in threaded connection with the plastic protective cap body, and the upper end of the rubber protective sleeve is in interference fit with the input shaft.
The inner side of the lower part of the plastic protective cap body is provided with a first inclined plane, the surface of the input shaft is provided with a second inclined plane, and the first inclined plane is matched with the second inclined plane.
The inner side of the upper part of the plastic protective cap body is provided with a boss, the surface of the input shaft is provided with a groove, and the boss is embedded into the groove.
Compared with the prior art, the rubber protective sleeve is additionally arranged at the upper end of the plastic protective cap body, so that the axial waterproof of the input shaft is realized, the axial water inflow and corrosion of the input shaft are avoided, and the safety performance of the whole automobile is further improved.
Drawings
FIG. 1 is a cross-sectional view of the present utility model assembled with an input shaft.
Fig. 2 is an isometric view of the plastic protective cap body of the present utility model.
Fig. 3 is a cross-sectional view of the plastic protective cap body of the present utility model.
Figure 4 is an isometric view of a rubber protective sleeve of the present utility model.
Figure 5 is a cross-sectional view of a rubber protective sleeve of the present utility model.
Description of the embodiments
The utility model will now be further described with reference to the accompanying drawings.
Referring to fig. 1-5, the utility model provides an axial waterproof input shaft protective cap, which comprises a plastic protective cap body and a rubber protective sleeve, wherein the plastic protective cap body 2 is sleeved outside an input shaft 3, the rubber protective sleeve 1 is sleeved outside the upper end of the plastic protective cap body 2, the lower part of the rubber protective sleeve 1 is in threaded connection with the plastic protective cap body 2, and the upper end of the rubber protective sleeve 1 is in interference fit with the input shaft 3, so that the axial waterproof of the input shaft is realized.
In order to ensure that the plastic protective cap body 2 is installed on the input shaft 3 in place, the inner side of the lower part of the plastic protective cap body 2 is provided with a first inclined plane 21, the surface of the input shaft 3 is provided with a second inclined plane 31, and the first inclined plane 21 is matched with the second inclined plane 31. The upper inner side of the plastic protective cap body 2 is provided with a boss 22, the surface of the input shaft 3 is provided with a groove 32, and the boss 22 is embedded into the groove 32.
When the utility model is installed, the rubber protective sleeve 1 and the plastic protective cap body 2 are preassembled, and then the preassembled small assembly is assembled on the input shaft 3.
When the utility model works, the plastic protective cap body 2 can prevent deformation under high-temperature and high-humidity environment, and when the whole vehicle is in wading or soaking working condition, the interference fit between the rubber protective sleeve 1 and the input shaft 3 can effectively prevent water from contacting with the input shaft 3. Even if the rubber protective sleeve 1 is used under the working condition of high temperature and high humidity for a long time, the rubber protective sleeve 1 is small in volume, the rubber protective sleeve 1 and the plastic protective cap body 2 are in threaded connection, the deformation is extremely small, the waterproof performance cannot be influenced, and the lower end plastic protective cap body 2 and the input shaft 3 are matched to prevent water from invading.
After the input shaft protective cap is adopted, the anti-corrosion treatment of the surface of the input shaft can be canceled, and the cost is reduced to a certain extent.
According to the utility model, the rubber protective sleeve is additionally arranged at the upper end of the plastic protective cap body, so that the axial waterproof of the input shaft is realized, the axial water inlet and corrosion of the input shaft are avoided, and the safety performance of the whole vehicle is further improved.
Claims (2)
1. The utility model provides an axial waterproof input shaft protective cap, includes plastics protective cap body, rubber protective sheath, its characterized in that: the plastic protection cap body (2) is sleeved outside the input shaft (3), a rubber protection sleeve (1) is sleeved outside the upper end of the plastic protection cap body (2), the lower portion of the rubber protection sleeve (1) is in threaded connection with the plastic protection cap body (2), the upper end of the rubber protection sleeve (1) is in interference fit with the input shaft (3), an inclined plane I (21) is arranged on the inner side of the lower portion of the plastic protection cap body (2), an inclined plane II (31) is arranged on the surface of the input shaft (3), and the inclined plane I (21) is matched with the inclined plane II (31).
2. An axially waterproof input shaft protective cap according to claim 1, wherein: the inner side of the upper part of the plastic protective cap body (2) is provided with a boss (22), the surface of the input shaft (3) is provided with a groove (32), and the boss (22) is embedded into the groove (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320089705.XU CN219529832U (en) | 2023-01-31 | 2023-01-31 | Axial waterproof input shaft protective cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320089705.XU CN219529832U (en) | 2023-01-31 | 2023-01-31 | Axial waterproof input shaft protective cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219529832U true CN219529832U (en) | 2023-08-15 |
Family
ID=87631297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320089705.XU Active CN219529832U (en) | 2023-01-31 | 2023-01-31 | Axial waterproof input shaft protective cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219529832U (en) |
-
2023
- 2023-01-31 CN CN202320089705.XU patent/CN219529832U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |