Fan inlet filter cotton fixing device

Abstract

The utility model discloses a fan inlet filter cotton fixing device which comprises a box body used for being communicated with a fan inlet, ventilation openings identical with the fan inlet in size are formed in the front face and the rear face of the box body, filter cotton used for completely covering the fan inlet is arranged in the box body, and the area of the filter cotton is larger than that of the ventilation openings. The fan inlet is round, the box body and the filter cotton are cuboid, and the area of the fan inlet is smaller than that of an incircle of the filter cotton. A front grid plate and a rear grid plate which are used for clamping the filter cotton in the middle are arranged in the box body. The front grid plate and the rear grid plate are hinged through a hinge shaft. The filter cotton is convenient to detach, and meanwhile the filter cotton can be prevented from being directly wetted by rainwater.

Description

Technical Field

[0001] This utility model relates to the field of air inlet filtration technology, specifically to a fan inlet filter cotton fixing device. Background Technology

[0002] In industrial production and ventilation systems, fans play a crucial role, responsible for introducing or expelling air into or from specific areas to ensure air circulation and maintain indoor environmental quality. However, dust, particles, and other pollutants in the air often negatively impact the performance and lifespan of fans. Therefore, installing filter cotton at the fan inlet has become a common solution.

[0003] Currently, filter cotton is usually required to be installed at the inlet of the fan. The existing installation method is to cut the original sheet-like filter cotton into a circular shape that fits the fan inlet and then clamp the filter cotton onto the fan inlet. This operation is inconvenient and can easily result in the filter cotton exceeding the size of the fan inlet, causing the filter cotton to get wet from rain. Cutting the filter cotton is also very inconvenient, requiring a cutting template to cut the filter cotton into a perfect circle, which is time-consuming, labor-intensive, and troublesome to install. Utility Model Content

[0004] The purpose of this utility model is to provide a fan inlet filter cotton fixing device, which facilitates the disassembly of the filter cotton and prevents the filter cotton from being directly wetted by rainwater.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0006] A fan inlet filter cotton fixing device includes a housing for connecting to the fan inlet. The housing has ventilation openings on its front and rear sides, the same size as the fan inlet. The housing contains filter cotton that completely covers the fan inlet, with the filter cotton's area larger than the ventilation openings. Its function is to allow the filter cotton to be fixed to the fan inlet without cutting it, making installation convenient.

[0007] Furthermore, the fan inlet is circular, while the housing and filter cotton are both cuboid in shape, with the area of ​​the fan inlet smaller than the area of ​​the filter cotton's inscribed circle. This design ensures that the filter cotton completely covers the fan inlet, based on the dimensional relationship between the fan inlet and the filter cotton.

[0008] Furthermore, the housing is equipped with a front mesh plate and a rear mesh plate for clamping the filter cotton in the middle. The function of the front and rear mesh plates is to clamp the filter cotton.

[0009] Furthermore, the front mesh plate and the rear mesh plate are hinged together by a hinge shaft. This design allows for easy removal of the front mesh plate, filter cotton, and rear mesh plate together from the housing.

[0010] Furthermore, the top of the housing has an opening, and a top cover is provided on the top of the housing to cover the opening. The purpose of this top cover is to prevent rainwater from directly wetting the filter cotton.

[0011] Furthermore, the hinge shaft is located on one side of the bottom of the housing. Its function is to provide support for the bottom of the filter cotton and to facilitate the direct lifting of the filter cotton while removing the front and rear mesh plates.

[0012] Furthermore, the bottom of the top cover is provided with an insert for embedding into the top of the box. Its function is to secure the top cover to the box by means of the insert.

[0013] Furthermore, the insert is interference-fitted with the housing.

[0014] Furthermore, a handle is provided on the top surface of the top cover. The function of the handle is to facilitate lifting the top cover.

[0015] Furthermore, the housing is connected to the fan inlet by bolts or flanges.

[0016] The beneficial effects of this utility model are:

[0017] 1. The housing design allows the filter cotton to be fixed to the fan inlet without cutting it, making installation convenient;

[0018] 2. By considering the size relationship between the fan inlet and the filter cotton, the filter cotton can completely cover the fan inlet;

[0019] 3. The design of the connection between the front and rear mesh panels makes it easy to remove the front mesh panel, filter cotton, and rear mesh panel directly from the box. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of Example 1;

[0021] Figure 2 This is a schematic diagram of the three-dimensional exploded structure of Example 1.

[0022] Attached reference numerals: 1. Fan inlet; 2. Housing; 3. Ventilation opening; 4. Filter cotton; 5. Front mesh plate; 6. Rear mesh plate; 7. Hinge shaft; 8. Top cover; 9. Embedded body; 10. Handle. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0024] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model 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 this utility model.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1

[0027] A fan inlet 1 filter cotton 4 fixing device, such as Figure 1 As shown, the device includes a housing 2 for connecting to the fan inlet 1. The housing 2 has ventilation openings 3 on both its front and rear sides, the same size as the fan inlet 1. Inside the housing 2 is a filter cotton 4 that completely covers the fan inlet 1, with the area of ​​the filter cotton 4 being larger than the area of ​​the ventilation openings 3. Its function is to allow the filter cotton 4 to be fixed to the fan inlet 1 without needing to be cut, making installation convenient.

[0028] Specifically, such as Figure 2 As shown, the fan inlet 1 is circular, while the housing 2 and filter cotton 4 are both cuboid. The area of ​​the fan inlet 1 is smaller than the area of ​​the inscribed circle of the filter cotton 4. This is to ensure that the filter cotton 4 completely covers the fan inlet 1, based on the dimensional relationship between the fan inlet 1 and the filter cotton 4.

[0029] Specifically, such as Figure 2 As shown, the housing 2 is equipped with a front mesh plate 5 and a rear mesh plate 6 for clamping the filter cotton 4 in the middle. Their function is to clamp the filter cotton 4 by means of the front mesh plate 5 and the rear mesh plate 6.

[0030] Specifically, such as Figure 2 As shown, the front mesh plate 5 and the rear mesh plate 6 are hinged together by a hinge shaft 7. This design allows for easy removal of the front mesh plate 5, filter cotton 4, and rear mesh plate 6 together from the housing 2.

[0031] Specifically, such as Figure 2 As shown, the top of the housing 2 has an opening, and a top cover 8 is provided on the top of the housing 2 to cover the opening. Its function is to prevent rainwater from directly wetting the filter cotton 4.

[0032] Specifically, such as Figure 2 As shown, the hinge shaft 7 is located on one side of the bottom inside the housing 2. Its function is to support the bottom of the filter cotton 4 and to facilitate the direct lifting of the filter cotton 4 while removing the front mesh plate 5 and the rear mesh plate 6.

[0033] Specifically, such as Figure 2 As shown, the bottom of the top cover 8 is provided with an insert 9 for embedding into the top of the box 2. Its function is to fix the top cover 8 onto the box 2 by means of the insert 9.

[0034] Specifically, such as Figure 2 As shown, the insert 9 is interference-fitted with the housing 2.

[0035] Specifically, such as Figure 2 As shown, a handle 10 is provided on the top surface of the top cover 8. Its function is to facilitate lifting the top cover 8 by means of the handle 10.

[0036] Specifically, such as Figure 2 As shown, the housing 2 and the fan inlet 1 are connected by bolts or flanges.

[0037] The working principle of this embodiment is explained as follows: When installing the filter cotton 4, first clamp the filter cotton 4 between the front grid plate 5 and the rear grid plate 6, then place the end with the hinge shaft 7 facing down into the box 2 from top to bottom, and then cover it with the top cover 8.

[0038] 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 substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A fan inlet filter cotton fixing device, characterized in that: The utility model relates to a filter box for fan inlet, which comprises a box (2) connected with a fan inlet (1), ventilation openings (3) with the same size as the fan inlet (1) are arranged on the front and back surfaces of the box (2), a front grid plate (5) and a rear grid plate (6) for clamping filter cotton (4) in the middle are arranged in the box (2), the front grid plate (5) and the rear grid plate (6) are hinged through a hinge shaft (7), and the area of the filter cotton (4) between the front grid plate (5) and the rear grid plate (6) is greater than the area of the ventilation opening (3).

2. The filter cotton fixing device for fan inlet according to claim 1, characterized in that: The fan inlet (1) is circular, the box (2) and the filter cotton (4) are cuboid, and the area of the fan inlet (1) is less than the area of the inscribed circle of the filter cotton (4).

3. The filter cotton fixing device for fan inlet according to claim 1, characterized in that: The box (2) is open at the top, and a top cover (8) is arranged on the top of the box (2).

4. The filter cotton fixing device for fan inlet according to claim 3, characterized in that: The hinge shaft (7) is arranged on one side of the bottom of the box (2).

5. The filter cotton fixing device for fan inlet according to claim 3, characterized in that: An embedding body (9) is arranged on the bottom of the top cover (8) for embedding into the top of the box (2).

6. The filter cotton fixing device for fan inlet according to claim 5, characterized in that: The embedding body (9) is in interference fit with the box (2).

7. The filter cotton fixing device for fan inlet according to claim 3, characterized in that: A handle (10) is arranged on the top surface of the top cover (8).

8. The filter cotton fixing device for fan inlet according to claim 1, characterized in that: The box (2) and the fan inlet (1) are connected through bolts or flanges.

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