A front cover plate hole sealing structure

Abstract

The utility model discloses a front cover plate hole's plugging structure, including stud cap, stud, nut, the stud is equipped with first gasket, rubber block, second gasket and the block in proper order, the block is blocked in the hole outer end, the outer end surface of block is provided with counterbore, and the nut is located in the counterbore, the utility model discloses utilize rubber block, sealing ring and realize the sealing, replace bolt, and the sealing effect is good.

Description

Technical Field

[0001] This utility model relates to a front cover plate, specifically a sealing structure for a front cover plate hole. Background Technology

[0002] There is a hole in the front cover of the car water pump. After the bearing is installed, the hole needs to be sealed. Currently, bolts are screwed in to seal it, but oil leakage still occurs occasionally. Utility Model Content

[0003] To address the shortcomings of the prior art, this utility model provides a sealing structure for the front cover plate hole. This utility model utilizes rubber blocks and sealing rings to achieve sealing, replacing bolts and providing a good sealing effect.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution: a sealing structure for a front cover plate hole, comprising a stud cap, a stud, and a nut, wherein a first washer, a rubber block, a second washer, and a plug are sequentially fitted on the stud, the plug being placed at the outer end of the hole, and a countersunk hole is formed on the outer end face of the plug, and the nut is located in the countersunk hole.

[0005] The side of the first gasket that contacts the rubber block is a first convex surface.

[0006] The side of the second gasket that contacts the rubber block is a second convex surface.

[0007] The outer wall of the plug extending into the hole is provided with an annular groove, and a sealing ring is provided in the annular groove.

[0008] The inner end of the hole is provided with a tapered hole with a gradually increasing diameter, and the rubber block can be squeezed and deformed to press against the wall of the tapered hole.

[0009] In summary, this utility model achieves the following technical effects:

[0010] Both contact surfaces of the rubber block are held in contact by the convex surface. When the nut is tightened, the two washers squeeze each other, thereby flattening the rubber block. The rubber block deforms, and the two sides are squeezed out and attached to the inner wall of the hole, thus forming a sealing structure to prevent the internal oil from leaking out. Attached Figure Description

[0011] Figure 1 It is a sealing structure for the holes in the front cover plate;

[0012] Figure 2 This is a schematic diagram of the structure of hole 11;

[0013] Figure 3 yes Figure 1 Enlarged diagram of part A in the middle. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings.

[0015] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] Example:

[0021] Figure 1 It is a sealing structure for the holes in the front cover plate. Figure 2 This is a schematic diagram of the structure of hole 11. Figure 3 yes Figure 1 The enlarged schematic diagram of part A includes a stud cap 2, a stud 3, and a nut 4. A first washer 5, a rubber block 6, a second washer 7, and a plug 8 are sequentially fitted on the stud 3. The plug 8 is plugged at the outer end of the hole 11. A countersunk hole 82 is formed on the outer end face of the plug 8, and the nut 4 is located in the countersunk hole 82.

[0022] The inner end of the hole 11 is provided with a tapered hole 12 with a gradually increasing diameter. After the rubber block 6 is squeezed and deformed, it can be pressed against the wall surface of the tapered hole 12. The tapered hole facilitates the compression and contact of the rubber block to form a seal.

[0023] The side of the first gasket 5 that contacts the rubber block 6 is a first convex surface 51.

[0024] The side of the second gasket 7 that contacts the rubber block 6 is a second convex surface 71.

[0025] Both contact surfaces of the rubber block 6 are clamped and contacted by the convex surface. When the nut 4 is tightened, the two washers squeeze each other, thereby flattening the rubber block 6. The rubber block 6 is deformed, and the two sides are squeezed out and attached to the inner wall of the hole 11, thus forming a sealing structure to prevent the internal oil from leaking out.

[0026] The outer wall of the plug 8, which extends into the hole 11, is provided with an annular groove 81, and a sealing ring 9 is disposed in the annular groove 81. The sealing ring further improves the sealing effect.

[0027] This utility model embeds the nut 4 into the countersunk hole 82 of the plug 8, without occupying the space outside the hole and without hindering the installation of the front cover plate.

[0028] Working principle:

[0029] The stud cap 2 and stud 3 are integrated structures. The first washer 5, rubber block 6, second washer 7 and plug 8 are sequentially fitted onto the stud 3. The nut 4 is pre-tightened onto the stud 3. At this time, the rubber block is not squeezed. The whole structure is extended into the hole 11. The sealing section of the plug 8 enters the hole 11. The extension plate of the plug 8 is located outside the hole 11. The nut 4 is tightened. The rubber block 6 is squeezed and deformed, and its two sides protrude and adhere to the inner wall of the conical hole 12, forming a seal with the sealing ring 9.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A sealing structure for a front cover plate hole, characterized in that: The device includes a stud cap (2), a stud (3), and a nut (4). The stud (3) is fitted with a first washer (5), a rubber block (6), a second washer (7), and a plug (8) in sequence. The plug (8) is plugged at the outer end of the hole (11). The outer end face of the plug (8) is provided with a countersunk hole (82), and the nut (4) is located in the countersunk hole (82).

2. The sealing structure for a front cover plate hole according to claim 1, characterized in that: The side of the first gasket (5) that contacts the rubber block (6) is a first convex surface (51).

3. The sealing structure for a front cover plate hole according to claim 1, characterized in that: The side of the second gasket (7) that contacts the rubber block (6) is a second convex surface (71).

4. The sealing structure for a front cover plate hole according to claim 1, characterized in that: The outer wall of the plug (8) extending into the hole (11) is provided with an annular groove (81), and a sealing ring (9) is provided in the annular groove (81).

5. The sealing structure for a front cover plate hole according to claim 1, characterized in that: The inner end of the hole (11) is provided with a tapered hole (12) with a gradually increasing diameter, and the rubber block (6) can be squeezed and deformed to press against the wall surface of the tapered hole (12).

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