Waterproof structure of automobile windscreen wiper

Abstract

The utility model discloses an automobile windscreen wiper waterproof structure which is characterized in that the automobile windscreen wiper waterproof structure comprises a windscreen wiper swing shaft (11), an outer decorative plate (14) and a metal plate (15), the windscreen wiper swing shaft (11) and the outer decorative plate (14) are connected through waterproof sleeve rubber (12), the windscreen wiper swing shaft (11) and the metal plate (15) are connected through a waterproof output shaft cover (13), and four sections of sealing structures (21) are arranged at the matched position of the waterproof output shaft cover (13) and the windscreen wiper swing shaft (11). A sealing ring structure (23) is arranged at the matched part of the waterproof output shaft cover (13) and the metal plate (15); and a thin-wall telescopic structure (22) is arranged at the transition part of the four-section sealing structure (21) and the sealing ring structure (23).

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of automobile wiper waterproof structures, mainly used in automobile wiper transmission assembly. BACKGROUND

[0002] Wiper transmission assembly is usually arranged between vent cover and water channel, to ensure the movement gap between wiper output shaft and vent cover, vent cover aperture is larger, in addition to leaves and large particles impurities possibly entering water channel, rainwater can also flow from vent cover aperture to swing shaft and rocker arm cooperation place, to avoid rainwater corrosion wiper assembly, existing scheme is all installed waterproof cover on swing shaft, and the sealing property and reliability of waterproof cover are limited, rainwater is difficult to avoid flowing on assembly parts.

[0003] As Figure 5 And Figure 6 As shown in waterproof schematic diagram of existing wiper assembly, to avoid rainwater corrosion rocker arm and connecting rod, etc. Figure 5 Waterproof cover and support are an entirety in the middle, waterproof cover outermost circle designs upward flanging, rainwater is guided by gap; Figure 6 Waterproof cover of the waterproof cover is plastic piece installed on swing shaft, and is still guided by flow mode to avoid rainwater contacting connecting rod and rocker arm. Since vent cover opening is larger, leaves and flying dirt and other impurities can enter the above waterproof structure, causing water guide port to be blocked. (1 is support waterproof cover in the figure, 2 is swing shaft waterproof cover).

[0004] However, for some cars without water channel, outer trim plate below is sheet metal, and all important parts such as wire harness and controller are below sheet metal, swing shaft needs to pass through sheet metal and outer trim plate and cooperate with wiper arm movement, and the waterproofness requirement of such car is higher. SUMMARY

[0005] The utility model aims at providing a kind of automobile wiper waterproof structure, for the car without water channel, to prevent rainwater from entering sheet metal below and corroding wiper mechanism assembly, protect other important parts of car.

[0006] The technical scheme of the utility model:

[0007] A kind of automobile wiper waterproof structure, including wiper swing shaft, outer trim plate and sheet metal, wiper swing shaft and outer trim plate are connected with waterproof sleeve rubber, wiper swing shaft and sheet metal are connected with waterproof output shaft cover, the part that waterproof output shaft cover cooperates with wiper swing shaft is equipped with four sealing structures, the part that waterproof output shaft cover cooperates with sheet metal is equipped with sealing ring structure, the part that four sealing structures and sealing ring structure transition is thin-walled telescopic structure.

[0008] Further, the waterproof sleeve rubber material is rubber, and is compressed and clamped into outer trim plate 14 aperture.

[0009] Further, the waterproof sleeve rubber is in interference fit with the outer trim panel.

[0010] Further, the waterproof output shaft cover is in interference fit with the sheet metal.

[0011] Further, the waterproof output shaft cover is in interference fit with the sheet metal.

[0012] The utility model has the following characteristics:

[0013] 1, this utility model relative to prior art wiper waterproof structure can reduce the material.

[0014] 2, in guaranteeing the movement gap of waterproof sleeve rubber on wiper swing shaft and outer trim panel, the opening on the outer trim panel is as small as possible, and more rainwater is avoided from entering the sheet metal.

[0015] 3, waterproof output shaft cover is designed on the sheet metal, and four-segment sealing structure is adopted in cooperation of waterproof output shaft cover and wiper swing shaft, waterproof output shaft cover does not move during work, and has a certain interference with the moving wiper swing shaft, so that water can be effectively prevented from entering the lower sheet metal.

[0016] 4, waterproof sleeve rubber is in interference fit with the outer trim panel, and water leakage is prevented.

[0017] 5, waterproof output shaft cover is in interference fit with the sheet metal, and water is prevented from flowing down along the swing shaft.

[0018] 6, four-segment sealing structure is adopted at the cooperation place of waterproof output shaft cover and wiper swing shaft, water can be effectively prevented, and the friction force with the swing shaft can be reduced, and friction noise during swing shaft rotation is avoided.

[0019] 7, the sealing ring structure of waterproof output shaft cover is in cooperation with the sheet metal, can prevent loosening, and water leakage is avoided.

[0020] 8, the thin-wall telescopic structure of waterproof output shaft cover can be telescopic and deflected, and the cooperation problem caused by swing shaft position deviation is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic diagram of the utility model;

[0022] Figure 2 It is the assembly sectional view of waterproof sleeve rubber and outer trim panel;

[0023] Figure 3 It is the assembly sectional view of waterproof output shaft cover and sheet metal;

[0024] Figure 4 It is the structure schematic diagram (including solid and sectional view) of waterproof output shaft cover;

[0025] Figure 5It is a schematic view of the existing rain scraping mechanism setting waterproof structure on the support;

[0026] Figure 6 It is a schematic view of the existing rain scraping mechanism setting waterproof cover on the swing shaft;

[0027] Marked in the figure: 1, support waterproof cover, 2, swing shaft waterproof cover, 11, rain scraping swing shaft, 12, waterproof sleeve rubber, 13, waterproof output shaft cover, 14, outer trim panel, 15, sheet metal. DETAILED DESCRIPTION

[0028] The utility model is further explained below through the drawings and examples.

[0029] A kind of automobile rain scraping waterproof structure, including rain scraping swing shaft 11, outer trim panel 14 and sheet metal 15, rain scraping swing shaft 11 and outer trim panel 14 are connected with waterproof sleeve rubber 12, rain scraping swing shaft 11 and sheet metal 15 are connected with waterproof output shaft cover 13, the part that waterproof output shaft cover 13 cooperates with rain scraping swing shaft 11 is equipped with four sealed structures 21, this structure can effectively waterproof, also can reduce the friction with swing shaft, avoid friction noise when swing shaft rotates;The part that waterproof output shaft cover 13 cooperates with sheet metal 15 is equipped with sealing ring structure 23, this structure can prevent loosening, avoid water leakage;The part that four sealed structures 21 and sealing ring structure 23 transition is thin-walled telescopic structure 22, this structure can be telescopic and swing, avoid the matching problem caused by swing shaft position deviation.

[0030] The waterproof sleeve rubber 12 is made of rubber, and is compressed and clamped into the opening of the outer trim panel 14.

[0031] The waterproof sleeve rubber 12 is in interference fit with the outer trim panel 14 to prevent water leakage.

[0032] The waterproof output shaft cover 13 is in interference fit with the sheet metal 15 to prevent water flowing down along the swing shaft.

[0033] The waterproof output shaft cover 13 is in the shape of a volcanic crater.

[0034] The utility model has the following characteristics:

[0035] 1. The utility model can reduce the use of materials compared with the existing rain scraping waterproof structure.

[0036] 2. Under the premise of ensuring the movement gap of the waterproof sleeve rubber on the rain scraping swing shaft and the outer trim panel, the opening on the outer trim panel is as small as possible to avoid more rainwater entering the sheet metal.

[0037] 3. A waterproof output shaft cover is designed on the sheet metal, the waterproof output shaft cover and the wiper shaft cooperate with four-segment sealing structure, the waterproof output shaft cover is static during working, and has a certain interference with the moving wiper shaft, so that water can be effectively prevented from entering the sheet metal below. The waterproof sleeve, waterproof output shaft cover, outer panel and sheet metal are assembled together to achieve waterproof.

[0038] 4. The waterproof sleeve and the outer panel are interference-fitted to prevent water leakage.

[0039] 5. The waterproof output shaft cover and the sheet metal are interference-fitted to prevent water from flowing down along the wiper shaft.

[0040] 6. The waterproof output shaft cover and the wiper shaft cooperate with four-segment sealing structure to effectively prevent water, and can also reduce the friction with the wiper shaft to avoid friction noise when the wiper shaft rotates.

[0041] 7. The sealing ring structure of the waterproof output shaft cover cooperates with the sheet metal to prevent loosening and avoid water leakage.

[0042] 8. The thin-walled telescopic structure of the waterproof output shaft cover can be telescopic and deflected to avoid the fitting problem caused by the position deviation of the wiper shaft.

[0043] The above is only a specific embodiment of the present application, any skilled person in the art of the present application can easily think of changes or replacements within the scope of the disclosed technology, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An automobile wiper waterproof structure, characterized by: Including wiper swing shaft (11), outer panel (14) and sheet metal (15), wiper swing shaft (11) and outer panel (14) are connected with waterproof sleeve rubber (12) between, wiper swing shaft (11) and sheet metal (15) are connected with waterproof output shaft cover (13) between, waterproof output shaft cover (13) is equipped with four sealing structures (21) in the part of cooperation with wiper swing shaft (11), waterproof output shaft cover (13) is equipped with sealing ring structure (23) in the part of cooperation with sheet metal (15), the part of transition of four sealing structures (21) and sealing ring structure (23) is thin wall expansion structure (22).

2. The waterproof structure of the automobile wiper according to claim 1, characterized in that: The waterproof sleeve rubber (12) is made of rubber, which is compressed and clamped into the opening of the outer panel (14).

3. The waterproof structure of the automobile wiper according to claim 1, characterized in that: The waterproof sleeve rubber (12) is in interference fit with the outer panel (14).

4. The waterproof structure of the automobile wiper according to claim 1, characterized in that: The waterproof output shaft cover (13) is in interference fit with the sheet metal (15).

5. The waterproof structure of the automobile wiper according to claim 1, characterized in that: The waterproof output shaft cover (13) is in the shape of a volcanic crater.

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