CN204593771U - A kind of carry filter screen mounting guide rail air-intaking box and fan coil and air-conditioning - Google Patents

Abstract

The utility model relates to a return air box, a fan coil unit and an air conditioner with its own filter screen installation guide rail. The air return box is composed of left and right side panels, upper and lower top covers, and a filter screen is arranged at the air outlet at the rear of the air return box. , it is characterized in that guide grooves are provided on the inner wall of the rear part of the left and right side plates of the return air box, structures corresponding to the guide grooves are provided on the left and right sides of the filter screen, and the filter screen is arranged from bottom to top along the The guide groove is inserted into the tuyere at the rear of the air return box, and the lower top cover fixes the bottom of the filter screen. The utility model integrates the filter screen installation mechanism and the return air box, which saves the complicated special frame for filter screen installation in structure and saves costs, and is very convenient to install and disassemble, with high efficiency, and the guide groove is integrally formed. Good reliability, high precision, convenient for daily cleaning and maintenance of the filter.

Description

A return air box, a fan coil unit and an air conditioner with its own filter installation guide rail

technical field

The utility model relates to a return air box, a fan coil unit and an air conditioner, in particular to a return air box, a fan coil unit and an air conditioner with its own filter screen installation guide rail, and belongs to the technical field of air conditioner manufacturing.

Background technique

At present, the filter screen of ordinary fan coil units is usually installed at the opening of the air return box. The installation of the filter screen must have a special installation frame, which includes four installation frames welded together, and then installed on the machine return air box with four screws. The structure is cumbersome, installation and disassembly are inconvenient, and cleaning and maintenance cannot be performed conveniently.

Utility model content

The technical problem to be solved by the utility model is to provide a return air box, a fan coil unit and an air conditioner with a built-in filter screen installation guide rail, which solves the problems existing in the prior art, and has a simple structure and is very convenient to install and disassemble.

The technical scheme of the utility model for solving the above-mentioned technical problems is as follows: a return air box with its own filter installation guide rail, the return air box is composed of left and right side panels, upper and lower top covers, and the air outlet at the rear of the return air box is provided with The filter screen is provided with guide grooves on the inner wall of the rear part of the left and right side plates of the return air box, and the left and right sides of the filter screen are provided with structures corresponding to the guide grooves. The guide groove is inserted into the tuyere at the rear of the air return box, and the lower top cover fixes the bottom of the filter screen.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, one guide groove is arranged vertically.

Further, an inwardly recessed groove is provided on the inner wall of the rear part of the left and right side plates of the return air box. The end is provided with a folded edge in the same direction as the recess of the groove, and the raised part between the groove and the folded edge forms the guide groove.

Further, on the inner wall of the rear part of the left and right side plates of the air return box, two inwardly recessed grooves are parallelly provided, and the two grooves are vertically arranged, and run through up and down or in the middle, and the two grooves The raised portion between the grooves forms the guide groove.

The beneficial effect of adopting the above-mentioned further solution is that the guide groove can be vertically arranged as a line, and there are two ways to form it, which can be a protrusion between the groove and the flange, or a protrusion between two grooves, forming The guide groove and the left and right side panels of the return air box are integrally formed, which has good reliability, and the filter screen is also very convenient to insert.

Further, there are multiple guide slots vertically arranged, and the filter screen is inserted into the air outlet at the rear of the air return box along one of the guide slots from bottom to top.

Further, on the inner wall of the rear part of the left and right side plates of the return air box, there are a plurality of inwardly sunken grooves parallel to each other. The plurality of grooves are all vertically arranged, and penetrate up and down or are segmented in the middle. The raised portions of the strip between said grooves form said guide grooves.

The beneficial effect of adopting the above further solution is that multiple guide grooves can be arranged vertically, formed by protrusions between multiple grooves, and the filter screen can be inserted into one of them, providing multiple options for insertion methods and distances.

Further, after the filter screen is inserted into the air outlet at the rear of the air return box along the guide groove from bottom to top, screws are installed on the lower top cover, and the screws are against the bottom of the filter screen.

The beneficial effect of adopting the above-mentioned further solution is that after the filter screen is inserted, the screw is installed on the lower top cover, and the bottom of the filter screen can be held against and fixed by hand tightening. The screws can be two horizontally arranged on the left and right, or multiple evenly arranged horizontally.

The utility model also provides a fan coil unit comprising the structure of the return air box, and an air conditioner comprising the fan coil unit.

The beneficial effects of the utility model are: the utility model integrates the filter screen installation mechanism and the air return box into a whole, which saves the complicated special frame for filter screen installation from the structure, saves the cost, and is very convenient to install and disassemble. High efficiency, integrated guide groove, good reliability, high precision, convenient for daily cleaning and maintenance of the filter screen.

Description of drawings

Fig. 1 is the structural representation of prior art;

Fig. 2 is the structural representation of the utility model after installation;

Fig. 3 is the structural representation when filter screen of the present utility model is inserted;

Fig. 4 is a schematic structural view of the left and right side panels of the return air box of the present invention;

Fig. 5 is the structural representation of A-A in Fig. 4;

FIG. 6 is an enlarged structural schematic diagram at B in FIG. 5 .

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Air return box, 2. Filter screen, 3. Screw, 4. Groove, 5. Flange, 6. Guide groove.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Figure 1, in the prior art, the filter screen 2 of the fan coil unit is usually installed at the opening of the return air box 1, and the installation of the filter screen 2 must have a special installation frame, which includes four installation frames welded together, and then Install it on the air return box 1 with four screws.

As shown in Figure 2 and Figure 3, a return air box with its own filter installation guide rail, the return air box 1 is composed of left and right side panels, upper and lower top covers, and a filter is arranged at the air outlet at the rear of the return air box 1 The net 2 is characterized in that a guide groove 6 is provided on the inner wall of the rear part of the left and right side plates of the return air box 1, and the left and right sides of the filter screen 2 are provided with structures corresponding to the guide groove 6. The filter screen 2 is inserted into the tuyere at the rear of the air return box 1 along the guide groove 6 from bottom to top, and the bottom of the filter screen 2 is fixed by the lower top cover.

In the utility model, the guide groove 6 is vertically arranged, and is integrally formed with the left and right side plates of the air return box 1, which has good reliability, and the filter screen is also very convenient to insert. And guide groove 6 can be provided with one, also can be provided with multiple in parallel.

When one guide groove 6 is provided, the guide groove 6 can be formed in two ways.

As shown in Fig. 4, Fig. 5 and Fig. 6, one is that an inwardly recessed groove 4 is provided on the inner wall of the rear part of the left and right side plates of the return air box 1, and the groove 4 is vertically arranged, and Up and down through or in the middle section, the rear end of the left and right side panels of the return air box 1 is provided with a folded edge 5 in the same direction as the groove 4, and the raised part between the groove 4 and the folded edge 5 The guide groove 6 is formed.

The other is that two inwardly recessed grooves 4 are parallelly provided on the inner wall of the rear part of the left and right side plates of the return air box 1, and the two grooves 4 are all vertically arranged, and are connected up and down or divided in the middle. Section, the raised part between the two grooves 4 forms the guide groove 6 .

When there are multiple guide grooves 6, the filter screen 2 is inserted from bottom to top along one of the guide grooves 6 into the tuyere at the rear of the return air box 1, and the inner walls of the rear of the left and right side panels of the return air box 1 A plurality of inwardly recessed grooves 4 are provided in parallel on the top, and the plurality of grooves 4 are all vertically arranged, and run through up and down or in the middle, and the raised part between two adjacent grooves 4 The guide groove 6 is formed. The guide groove 6 is formed by protrusions between a plurality of grooves 4, and the filter screen 2 is inserted into one of them, providing multiple options of insertion methods and distances.

When the groove 4 is set, it can be connected up and down, or it can be segmented in the middle. As long as the guide groove 6 is formed, and the left and right sides of the filter screen correspond to the structure of the formed guide groove 6, it can be inserted to realize the utility model. New technical solutions.

After the filter screen 2 is inserted into the air outlet at the rear of the air return box 1 along the guide groove 6 from bottom to top, as shown in Figure 2, install screws 3 on the lower top cover, and tighten the screws by hand 3 can be pressed against the bottom of the filter screen 2 to fix it. The screws 3 can be two horizontally arranged on the left and right, or multiple evenly arranged horizontally.

The utility model also relates to a fan coil unit comprising the structure of the return air box, and an air conditioner comprising the fan coil unit.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (9)

1. A return air box with its own filter screen installation guide rail, the return air box (1) is composed of left and right side panels, upper and lower top covers, and a filter screen (2 ), it is characterized in that guide grooves (6) are provided on the inner wall of the rear part of the left and right side plates of the return air box (1), and the left and right sides of the filter screen (2) are provided with the guide grooves (6) ), the filter screen (2) is inserted into the air outlet at the rear of the air return box (1) from bottom to top along the guide groove (6), and the lower top cover fixes the filter screen (2) bottom of. 2. According to claim 1, a return air box with a guide rail for installing a filter screen is characterized in that, one guide groove (6) is arranged vertically. 3. According to claim 2, a kind of air return box with its own filter screen installation guide rail is characterized in that, on the inner wall of the rear part of the left and right side panels of the air return box (1), an inwardly recessed groove ( 4), the groove (4) is arranged vertically, and runs through up and down or is segmented in the middle, and the rear end of the left and right side panels of the air return box (1) is provided with a folded edge in the same direction as the groove (4) (5), the protruding part between the groove (4) and the flange (5) forms the guide groove (6). 4. According to claim 2, a return air box with its own filter screen installation guide rail is characterized in that two inwardly recessed air return boxes are provided in parallel on the inner wall of the rear part of the left and right side panels of the return air box (1). Groove (4), the two grooves (4) are all arranged vertically, and run through up and down or in the middle, and the raised part between the two grooves (4) forms the guide groove (6 ). 5. According to claim 1, a return air box with its own filter screen installation guide rail, characterized in that, the guide groove (6) is vertically provided with multiple lines, and the filter screen (2) is arranged along one of them from bottom to top. A guide slot (6) is inserted into the air outlet at the rear of the air return box (1). 6. According to claim 5, a return air box with its own filter screen installation guide rail is characterized in that, on the inner wall of the rear part of the left and right side panels of the return air box (1), a plurality of inwardly recessed bars are provided in parallel. Grooves (4), a plurality of said grooves (4) are arranged vertically, and run through up and down or in the middle, and the raised part between two adjacent said grooves (4) forms said guide groove (6). 7. According to any one of claims 1 to 6, a return air box with its own filter screen installation guide rail, characterized in that the filter screen (2) is inserted into the guide slot (6) from bottom to top After returning to the tuyere at the rear of the air box (1), install a screw (3) on the lower top cover, and the screw (3) is against the bottom of the filter screen (2). 8. A fan coil unit, characterized in that it comprises the air return box (1) with its own filter screen installation guide rail as claimed in claims 1 to 7. 9. An air conditioner, comprising the fan coil unit according to claim 8.