Sand and water shield assembly

Abstract

The technical scheme discloses a sandproof and sand-clearing water-blocking cover assembly, which comprises a cover piece and a replacement piece; the cover piece is internally hollow, the inner wall of the cover piece is provided with a first water-blocking ring and a second water-blocking ring with gradually increasing height, and the position, at which the cover piece is matched with the replacement piece, is provided with a ring-shaped clamping convex; the replacement piece is provided with a clamping concave at the position matched with the clamping convex, and the cover piece and the replacement piece are matched through the clamping convex and the clamping concave; the replacement piece is provided with a brush body, the clamping concave is arranged on the brush body, and the brush body is further provided with brush hairs, which face the end cover and clean the end cover. The technical scheme solves the technical problem of optimizing the structure of the original water-blocking cover and preventing dust from accumulating between the water-blocking cover and the end cover.

Description

Technical Field

[0001] This utility model relates to a water-blocking cover component used in an electric motor for sand prevention and clearing, which has several optimized and innovative designs to improve its sand prevention and clearing effect. Background Technology

[0002] Motors are a common type of component, and they can be installed vertically or horizontally. When these motors are installed, they are usually covered with a waterproof cover to prevent water from entering. When the motor is installed horizontally, a lot of dust will accumulate between the water cover and the motor end cover due to the gap. As the service life of the water cover shortens and it deforms, this dust will squeeze into the inside of the water cover, thereby destroying the original water-blocking effect of the water cover. Utility Model Content

[0003] The purpose of this utility model is to provide a sand-proof and sand-clearing water-blocking cover assembly. The technical problem to be solved is to optimize the structure of the original water-blocking cover and prevent dust from accumulating between the water-blocking cover and the end cap.

[0004] A sand-proof and water-blocking cover assembly includes a cover and a replacement part. The cover is hollow inside, and its inner wall has a first and a second annular water-sealing ring with gradually increasing height. The cover and the replacement part have an annular protrusion at the position where they mate. The replacement part has a recess at the position where it mates with the protrusion. The cover and the replacement part are fitted together by the protrusion and the recess. The replacement part has a brush body, and the recess is arranged on the brush body. The brush body also has bristles that face the end cover and clean it.

[0005] The brush body is shaped like a bowl.

[0006] The sand-proof and water-blocking cover assembly is coupled with a rotating shaft, which has two waterproof inner rings, and the two waterproof inner rings are respectively equipped with a first water-sealing ring and a second water-sealing ring.

[0007] The height ratio of the first sealing ring and the second sealing ring can be designed to be 1:2 or 1:3.

[0008] An oil seal and a bearing are fitted between the end cover and the rotating shaft. The oil seal is located inside the end cover and on the inner side, while the bearing is located inside the end cover and on the outer side.

[0009] The beneficial effects of this utility model are as follows: The water-blocking cover used in this invention is designed with bristles, which can clean the dust between the end cap and the water-blocking cover, thus avoiding the accumulation of dust; by designing the water-blocking cover as a separate sealing part and a replacement part, it is convenient to replace the replacement part at any time; by designing multiple water-sealing rings, the water-blocking effect of the water-blocking cover can be significantly improved; by designing the locking protrusions and recesses, taking advantage of the fact that both the sealing part and the replacement part are elastic parts, the replacement part can fit well on the sealing part, ensuring the assembly of these two parts without the need for other fasteners. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the assembly of the water-blocking cover and the rotating shaft; Figure 2 This is a schematic diagram of the assembly of the water-blocking cover and the rotating shaft in another embodiment; In the picture 1. Sealing element; 11. First sealing ring; 12. Second sealing ring; 13. Engraving; 2. Replacement parts; 21. Brush body; 22. Recess; 23. Brush bristles; 3. Shaft; 31. Waterproof inner ring; 4. Oil seal; 5. End cap; 6. Bearings. Detailed Implementation

[0011] Please refer to Figure 1 The sand-proof and water-blocking cover assembly shown in the figure mainly consists of a cover 1 and a replacement part 2. The cover 1 is used to fit the entire water-blocking cover assembly onto the rotating shaft 3, and the replacement part 2 is used to clean the end cover 5 and replace it periodically. In practical applications, the shape, structure, material, and quantity of the above components can be optimized, or existing components can be used for equivalent replacement as needed, or other components can be added on the basis of the above two components.

[0012] The sealing cap 1 in the figure is a three-dimensional hollow ring structure. It features a first water-sealing ring 11 and a second water-sealing ring 12 at the position facing the rotating shaft 3. The height of the first water-sealing ring 11 is lower than the height of the second water-sealing ring 12. These two water-sealing rings cooperate with the two waterproof inner rings 31 of the rotating shaft 3 to achieve a good water-sealing effect. Specifically, the height ratio of the first water-sealing ring 11 to the second water-sealing ring 12 can be designed as 1:2 or 1:3 for better waterproofing. The sealing cap 1 also features a ring-shaped locking protrusion 13 at the position where it mates with the replacement part 2, facilitating subsequent fitting with the replacement part 2. In practical applications, the positions of the first water-sealing ring 11 and the second water-sealing ring 12 can be adjusted as needed. Figure 2 As shown.

[0013] The replacement part 2 in the figure is also a three-dimensional hollow ring structure, which includes a brush body 21 and a combing part. The brush body 21 adopts a bowl-shaped design and has a recessed recess 22 structure at the position where it mates with the locking protrusion 13 of the water seal cap. In this way, the water seal cap and the replacement part 2 can be interlocked through the convex and concave fit. The aforementioned brush bristles 23 are a common structure. Since the replacement part 2 is made of soft material, when the rotating shaft 3 rotates, the sealing cap 1 and the replacement part 2 will rotate synchronously, thereby causing the replacement part 2 to rotate and clean the end cap 5, which can achieve a better cleaning effect.

[0014] The rotating shaft 3 in the figure is a conventional round shaft structure. The end cover 5 is fitted onto the rotating shaft 3, and an oil seal 4 and a bearing 6 are arranged at the joint position of the two. The oil seal 4 is inside the end cover 5 and located on the inner side, while the bearing 6 is inside the end cover 5 and located on the outer side.

[0015] The specific embodiments described above are merely illustrative of the present technical solution and are not intended to limit the present technical solution. In the description of the present technical solution, it should be noted that terms such as "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are only for the convenience of describing the present technical solution and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present technical solution.

[0016] Furthermore, in the description of this technical solution, it should be noted that, unless otherwise explicitly specified and limited, the terms "fixed" and "fitting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral 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 technical solution according to the specific circumstances.

[0017] Although embodiments of the present technical solution have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present technical solution, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sand-proof, sand-clearing, and water-blocking cover assembly, characterized in that: The device includes a cover (1) and a replacement part (2). The cover (1) is hollow inside. The inner wall of the cover (1) has a first water-sealing ring (11) and a second water-sealing ring (12) with gradually increasing height. The cover (1) has an annular protrusion (13) at the position where it mates with the replacement part (2). The replacement part (2) has a recess (22) at the position where it mates with the protrusion (13). The cover (1) and the replacement part (2) are mutually fitted and matched through the protrusion (13) and the recess (22). The replacement part (2) has a brush body (21). The recess (22) is arranged on the brush body (21). The brush body (21) also has bristles (23). The bristles (23) face the end cap (5) and clean the end cap (5).

2. The sand-proof, sand-clearing, and water-blocking cover assembly according to claim 1, characterized in that: The brush body (21) is bowl-shaped.

3. The sand-proof, sand-clearing, and water-blocking cover assembly according to claim 2, characterized in that: The sand-proof and water-blocking cover assembly is fitted with a rotating shaft (3), which has two waterproof inner rings (31), and the two waterproof inner rings (31) are respectively equipped with a first water-sealing ring (11) and a second water-sealing ring (12).

4. The sand-proof, sand-clearing, and water-blocking cover assembly according to claim 3, characterized in that: The height ratio of the first sealing ring (11) and the second sealing ring (12) can be designed to be 1:2 or 1:

3.

5. The sand-proof, sand-clearing, and water-blocking cover assembly according to claim 4, characterized in that: An oil seal (4) and a bearing (6) are fitted between the end cover (5) and the shaft (3). The oil seal (4) is located inside the end cover (5) and on the inner side, while the bearing (6) is located inside the end cover (5) and on the outer side.

Images