Fan coil lower rear air return filter screen capable of being installed in interchangeable mode

Abstract

The utility model belongs to the technical field of fan coil installation, and particularly relates to a fan coil lower rear air return filter screen capable of being installed in an interchangeable mode, which comprises an air baffle, a filter screen installation frame and a filter screen, the filter screen installation frame is of a frame type structure composed of two pairs of end plates and side plates which are oppositely arranged, and the filter screen is installed in the filter screen installation frame. The filter screen installation frame is connected with one end of the wind shield, and the included angle between the filter screen installation frame and the wind shield is 90 degrees. By adjusting the installation direction of the filter screen, the filter screen can be installed at the return air inlet on one side of the fan coil and the return air inlet on the other side can be blocked at the same time, the interchange function of the rear return air filter screen and the lower return air filter screen in field installation is achieved, the structure is simple and practical, and installation is flexible and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan coil installation, and in particular relates to a rear return air filter screen under a fan coil that can be installed interchangeably. Background Art

[0002] The return air mode of the traditional concealed horizontal fan coil unit return air box is divided into bottom return air and rear return air, which is determined according to the on-site building structure layout, and is equipped with filters of different specifications. However, there are often some temporary design changes on site, which requires the original return air mode to be changed. Figure 1 and Figure 2 Since the traditional lower and rear return air filters have different structures and specifications, they cannot be interchanged on site and can only be returned or exchanged. This increases transportation costs and installation time. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide an interchangeable lower and rear return air filter for a fan coil unit, so as to solve the problem that the traditional lower and rear return air filters have different structures and specifications and cannot be interchanged on site. They can only be replaced or returned, thereby increasing transportation costs and installation time.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: an interchangeable fan coil lower rear return air filter, including a wind shield, a filter mounting frame, and a filter. The filter mounting frame is a frame structure composed of two pairs of end plates and side plates respectively arranged opposite to each other. The filter is installed in the filter mounting frame. The filter mounting frame is connected to one end of the wind shield, and the angle between the filter mounting frame and the wind shield is 90 degrees.

[0005] The beneficial effect of the utility model is that by adjusting the installation direction of the filter, the filter can be installed at the return air outlet on one side of the fan coil unit while blocking the return air outlet on the other side, thereby realizing the interchangeability of the rear return air filter and the lower return air filter during on-site installation. The structure is simple and practical, and the installation is flexible and convenient.

[0006] In order to effectively block the rear and lower return air vents of the fan coil unit;

[0007] As a further improvement of the above technical solution: the windshield comprises a main board body, the main board body is a board structure with a flat surface, and a plurality of through-hole mechanisms are provided on the main board body.

[0008] The beneficial effect of this improvement is that the main board body can be abutted against the outer surface of the fan and quickly fixed to the fan surface by using bolts or rivets to block the inner return air outlet.

[0009] In order to ensure the stability of the connection between the wind shield and the filter mounting frame;

[0010] As a further improvement of the above technical solution: one end of the main board body is bent to form a connecting section, the connecting section is an angle iron structure, and a side wing plate of the connecting section flatly fits the surface of the end plate.

[0011] The beneficial effect of this improvement is that the connecting section can be firmly connected to the flat and adjacent end plate by any one of riveting, welding and bolting.

[0012] In order to ensure the stability of the connection between the side panels and the end panels;

[0013] As a further improvement of the above technical solution: the upper and lower ends of the side plate are bent to form a bent plate, and the surface of the bent plate is smoothly connected to the surface of the end plate.

[0014] The beneficial effect of this improvement is that the bent plate can be firmly connected to the flat and adjacent end plate by any one of riveting, welding and bolting.

[0015] In order to ensure that the filter mounting frame is firmly installed on the fan housing;

[0016] As a further improvement of the above technical solution: the side plate is an angle iron structure, one side wing plate of the side plate fits the surface of the filter screen, and the other side wing plate of the side plate is provided with a plurality of through-hole structures.

[0017] The beneficial effect of this improvement is that the side plate can be abutted against the outer surface of the fan and quickly fixed to the fan surface by using bolts or rivets to block the inner return air outlet.

[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the installation of the rear return air filter in the prior art;

[0020] Figure 2 It is a schematic diagram of the installation of the lower return air filter in the prior art;

[0021] Figure 3 This is a schematic diagram of the installation of the utility model in the rear return air installation position;

[0022] Figure 4 This is an installation schematic diagram of the utility model in the lower return air installation position;

[0023] Figure 5 The structure of the utility model is shown in FIG. Figure 1 ;

[0024] Figure 6 The structure of the utility model is shown in FIG. Figure 2 ;

[0025] Figure 7 It is a cross-sectional view of the utility model;

[0026] In the figure: 1, wind shield; 11, main board; 12, connecting section; 2, filter mounting frame; 21, end plate; 22, side plate; 23, bending plate; 3, filter. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0028] Embodiment 1:

[0029] like Figure 3 The filter 3 is installed in the filter mounting frame 2, and the filter mounting frame 2 is connected to one end of the wind shield 1. The angle between the filter mounting frame 2 and the wind shield 1 is 90 degrees. By adjusting the installation direction of the filter, the filter can be installed at the return air outlet on one side of the fan coil unit while blocking the return air outlet on the other side, thereby realizing the interchangeability of the rear return air filter and the lower return air filter during on-site installation. The structure is simple and practical, and the installation is flexible and convenient. The wind shield 1 includes a main board body 11, and the main board body 11 is a plate structure with a smooth surface. A plurality of through-hole mechanisms are opened on the main board body 11. The main board body 11 can be abutted against the outer surface of the fan and can be quickly fixed to the fan surface by using bolts or rivets. The air outlet is blocked, and one end of the main board body 11 is bent to form a connecting section 12, and the connecting section 12 is an angle iron type structure. One side wing plate of the connecting section 12 is flatly attached to the surface of the end plate 21, and the connecting section 12 can be firmly connected to the flat end plate 21 by any one of riveting, welding, and bolting. The upper and lower ends of the side plate 22 are bent to form a bent plate 23, and the surface of the bent plate 23 is flatly connected to the surface of the end plate 21, and the bent plate 23 can be firmly connected to the flat end plate 21 by any one of riveting, welding, and bolting. The side plate 22 is an angle iron type structure, and one side wing plate of the side plate 22 is attached to the surface of the filter 3. A plurality of through-hole structures are provided on the other side wing plate of the side plate 22, and the side plate 22 can be attached to the outer surface of the fan and quickly fixed to the fan surface by using bolts or rivets to block the inner return air outlet.

[0030] The working principle of the technical solution is as follows: when in the rear return air installation position, the filter mounting frame 2 is placed against the return air outlet on the rear side of the fan coil unit, and the filter mounting frame 2 and the wind shield 1 are fixed to the fan housing with bolts, so that the wind shield 1 covers the return air outlet on the lower side of the fan coil unit; when in the lower return air installation position, the filter mounting frame 2 is placed against the return air outlet on the lower side of the fan coil unit, and the filter mounting frame 2 and the wind shield 1 are fixed to the fan housing with bolts, so that the wind shield 1 covers the return air outlet on the rear side of the fan coil unit.

[0031] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0032] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. An interchangeable fan coil unit lower rear return air filter, characterized in that: The invention comprises a windshield (1), a filter screen mounting frame (2), and a filter screen (3); the filter screen mounting frame (2) is a frame structure composed of two pairs of end plates (21) and side plates (22) which are arranged opposite to each other; the filter screen (3) is mounted in the filter screen mounting frame (2); the filter screen mounting frame (2) is connected to one end of the windshield (1); and the angle between the filter screen mounting frame (2) and the windshield (1) is 90 degrees.

2. The interchangeable fan coil unit rear return air filter according to claim 1, characterized in that: The windshield (1) comprises a main board body (11), the main board body (11) is a board structure with a flat surface, and a plurality of through-hole mechanisms are provided on the main board body (11).

3. The interchangeable fan coil lower rear return air filter according to claim 2, characterized in that: One end of the main plate (11) is bent to form a connecting section (12), the connecting section (12) being an angle iron structure, and a side wing plate of the connecting section (12) flatly fits the surface of the end plate (21).

4. The interchangeable fan coil lower rear return air filter according to claim 1, characterized in that: The upper and lower ends of the side plate (22) are bent to form a bent plate (23), and the surface of the bent plate (23) is smoothly connected to the surface of the end plate (21).

5. The interchangeable fan coil lower rear return air filter according to claim 1, characterized in that: The side plate (22) is an angle iron structure, one side wing plate of the side plate (22) fits the surface of the filter screen (3), and the other side wing plate of the side plate (22) is provided with a plurality of through-hole structures.

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