Externally-hung side-pulling multi-layer filter screen frame

Abstract

The utility model discloses an externally-hung side-pulling multilayer filter screen frame, which relates to the field of air conditioner filtering equipment, and adopts a rectangular frame structure, a left side plate and a right side plate are symmetrically arranged on the left side and the right side of the frame, and an upper side plate and a lower side plate are symmetrically arranged on the upper side and the lower side of the filter screen frame, the front sides and the rear sides of the left ends and the right ends of the upper sliding way and the lower sliding way are symmetrically provided with wind shields, the front sides and the rear sides of the middles of the upper sliding way and the lower sliding way are symmetrically provided with middle reinforcing plates, and the wind shields and the middle reinforcing plates are fixedly connected with the upper side plate and the lower side plate. A middle slide way is fixed between the two middle reinforcing plates and fixedly connected with the corresponding wind shield, a first filter screen containing cavity is formed between the upper portion of the middle slide way and the upper slide way, and a second filter screen containing cavity is formed between the lower portion of the middle slide way and the lower slide way. The utility model solves the problem that the middle filter screen is easy to fall off due to insufficient strength of the existing externally-hung filter screen frame, and does not reduce the filter space at the same time.

Description

Technical Field

[0001] The utility model relates to the field of air-conditioning filtering equipment, and particularly relates to an externally-mounted side-drawing multi-layer filter screen frame. Background Art

[0002] The externally-mounted filter screen frame is an important part of an air handling unit and also an important component of a central air-conditioning system, and is widely used in industries such as commerce, medicine, and electronics. The externally-mounted filter screen frame in the air handling unit generally adopts the method of having no support in the middle slideway or having support in the middle slideway but occupying the air inlet space. Since the conventional externally-mounted filter screen is convenient to manufacture, it is widely used.

[0003] As Figure 1 shown in the middle slideway, although it is simple to manufacture, with two sheet metals spot-welded together and locked to the side plates with screws on both sides and no support in the middle, this kind of frame has a fatal defect, that is, when the filter screen is layered in two layers or more, due to no support in the middle, the strength of the whole frame is relatively poor, especially in the middle filter screen slideway part, there will be a depression in the middle, resulting in the filter screen falling out from the middle. As is well known, many units will connect air ducts at the air inlet. If the filter screen falls into the air duct, it will be very troublesome to replace, thus bringing great trouble to users.

[0004] As Figure 2 shown in the middle slideway, it is also made by spot-welding two sheet metals together. Although there is a section of empty space in the middle, supports can be made to ensure the strength of the filter screen frame and also ensure that the filter screen in the middle part will not fall out, but a part of the filtering space is reduced, and the structure is still not ideal. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and provide an externally-mounted side-drawing multi-layer filter screen frame, which solves the problem that the existing externally-mounted filter screen frame has insufficient strength and the middle filter screen is easy to fall off, and at the same time does not reduce the filtering space.

[0006] The purpose of the utility model is completed by the following technical solutions: This externally-mounted side-drawing multi-layer filter screen frame adopts a rectangular frame structure, with a left side plate and a right side plate symmetrically arranged on its left and right sides, and an upper side plate and a lower side plate symmetrically arranged on the upper and lower sides of the filter screen frame. Among them, upper slideways are arranged on the opposite surfaces of the upper side plate and the lower side plate, lower slideways corresponding to the upper slideways are arranged on the lower side plate, windshields are symmetrically arranged on the front and rear sides at both left and right ends of the upper slideway and the lower slideway, and middle reinforcing plates are symmetrically arranged on the front and rear sides in the middle of the two, and both the windshields and the middle reinforcing plates are fixedly connected to the upper side plate and the lower side plate; a middle slideway is fixed between the two middle reinforcing plates, and both ends of the middle slideway are fixedly connected to the corresponding windshields. A first filter screen accommodating cavity is formed between the upper part of the middle slideway and the upper slideway, and a second filter screen accommodating cavity is formed between the lower part of the middle slideway and the lower slideway.

[0007] As a further technical solution, external sealing plates are provided on both the left side plate and the right side plate. After the first filter screen accommodating cavity and the second filter screen accommodating cavity are inserted with filter screens, they are locked and fixed to the corresponding left side plate and right side plate through the external sealing plates.

[0008] As a further technical solution, the middle slideway includes a middle reinforcing structure with an "H"-shaped cross-section, and two side reinforcing structures with rectangular cross-sections are symmetrically arranged on both sides of the middle reinforcing structure.

[0009] As a further technical solution, fixing grooves are formed on the outer walls of the two side reinforcing structures for cooperating with the fixing holes formed on the wind deflector and the middle reinforcing plate, so that the middle slideway is fixedly connected to the wind deflector and the middle reinforcing plate through threaded connections, and the inner walls of the wind deflector and the middle reinforcing plate are pressed against the two side reinforcing structures.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. After the middle reinforcing plate, the two side wind deflectors and the middle slideway are fixed, and then the two side wind deflectors are fixed to the upper and lower side plates and the left and right side plates, the strength of the entire filter screen frame can be ensured to be high and not easily deformed;

[0012] 2. The middle slideway is provided with a middle reinforcing structure with an "H" shape, and two filter screen accommodating cavities can be formed in cooperation with the upper and lower slideways, and filter screens can be installed respectively. After the filter screens are installed, they are fixed to the left and right side plates through the external sealing plates, so that the filter screens are not easily dropped;

[0013] 3. Two side reinforcing structures are further arranged on both sides of the middle slideway to improve the compressive resistance of the slideway and enhance the overall strength. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the prior art Figure 1 。

[0015] Figure 2 is a schematic structural diagram of the prior art Figure 2 。

[0016] Figure 3 is a schematic structural diagram of the present utility model.

[0017] Figure 4 is a schematic structural diagram of the middle slideway in the present utility model.

[0018] Description of the reference numerals: left side plate 11, right side plate 12, upper side plate 21, lower side plate 22, wind deflector 3, middle slideway 4, middle reinforcing structure 41, two side reinforcing structures 42, fixing groove 421, upper slideway 51, lower slideway 52, middle reinforcing plate 6, external sealing plate 7, first filter screen accommodating cavity 81, second filter screen accommodating cavity 82, fixing hole 9. Detailed implementation mode

[0019] The following will introduce the present utility model in detail with reference to the accompanying drawings:

[0020] Embodiment: As shown in the attached Figure 3 、 4 As shown, this externally mounted side-drawn multi-layer filter screen frame includes a left side plate 11, a right side plate 12, an upper side plate 21, a lower side plate 22, a wind deflector 3, a middle slideway 4, a middle reinforcement structure 41, side reinforcement structures 42, fixing grooves 421, an upper slideway 51, a lower slideway 52, a middle reinforcement plate 6, an external sealing plate 7, a first filter screen accommodating cavity 81, a second filter screen accommodating cavity 82, and fixing holes 9.

[0021] Referring to the attached Figure 3 , this filter screen frame adopts a rectangular frame structure. A left side plate 11 is arranged on the left side of the filter screen frame, and a right side plate 12 is arranged on the right side. The left side plate 11 and the right side plate 12 are symmetrical to each other. An upper side plate 21 is arranged on the upper side of the filter screen frame, and a lower side plate 22 is arranged on the lower side. The upper side plate 21 and the lower side plate 22 are also symmetrical to each other. Among them, an upper slideway 51 is arranged on the surface of the upper side plate 21 opposite to the lower side plate 22, and a lower slideway 52 corresponding to the upper slideway 51 is arranged on the lower side plate 22, that is, the upper slideway 51 and the lower slideway 52 are symmetrically arranged inside the upper side plate 21 and the lower side plate 22. A group of wind deflectors 3 are symmetrically arranged at positions of the filter screen frame close to the left side plate 11 and close to the right side plate 12. Each group of wind deflectors 3 includes two (symmetrical front and back), a total of four wind deflectors 3, and the wind deflectors 3 do not contact the left side plate 11 / right side plate 12.

[0022] The left end of the upper slideway 51 is located between a group of left-side wind deflectors 3, and the right end is located between a group of right-side wind deflectors 3. Similarly, the left end of the lower slideway 52 is located between a group of left-side wind deflectors 3, and the right end is located between a group of right-side wind deflectors 3, that is, the left and right ends of both the upper slideway 51 and the lower slideway 52 are located between the wind deflectors 3. At the same time, two middle reinforcement plates 6 (a total of two) are symmetrically arranged on the front and back sides of the middle parts of both the upper slideway 51 and the lower slideway 52, and the upper and lower ends of each wind deflector 3 and the middle reinforcement plate 6 are fixedly connected to the upper side plate 21 / lower side plate 22 by bolts. A middle slideway 4 is fixedly installed between the two middle reinforcement plates 6. The two ends of the middle slideway 4 are fixedly connected to the corresponding wind deflectors 3. A first filter screen accommodating cavity 81 is formed between the upper part of the middle slideway 4 and the upper slideway 51, and a second filter screen accommodating cavity 82 is formed between the lower part of the middle slideway 4 and the lower slideway 52.

[0023] Furthermore, an external sealing plate 7 is arranged on both the left side plate 11 and the right side plate 12. After the filter screens are placed in the first filter screen accommodating cavity 81 and the second filter screen accommodating cavity 82, they are fixedly locked by screwing the external sealing plate 7 to the corresponding left side plate 11 and right side plate 12.

[0024] As Figure 4 shown, the middle slideway 4 includes a middle reinforcement structure 41 with an "H"-shaped cross-section, and on both sides of the middle reinforcement structure 41, two side reinforcement structures 42 with rectangular cross-sections are symmetrically arranged. Fixing grooves 421 are formed on the outer walls of the two side reinforcement structures 42, and fixing holes 9 are formed at positions corresponding to the fixing grooves 421 on both the windshield 3 and the middle reinforcement plate 6, so that the middle slideway 4 is fixedly connected to the windshield 3 and the middle reinforcement plate 6 by threaded connection. After fixation, the inner walls of the windshield 3 and the middle reinforcement plate 6 are pressed against the two side reinforcement structures 42, enhancing the compressive capacity of the slideway and improving the overall strength.

[0025] The installation process of the present utility model:

[0026] 1. The upper side plate 21, the lower side plate 22, the upper slideway 51 and the lower slideway 52 are correspondingly arranged and fixedly connected together by spot welding;

[0027] 2. The left side plate 11, the right side plate 12, the upper side plate 21 and the lower side plate 22 are fixedly connected together by spot welding to form a rectangular frame structure;

[0028] 3. One set of windshields 3 are respectively arranged on both sides of the upper side plate 21 and the lower side plate 22, and one set of middle reinforcement plates 6 are arranged in the middle of them, and the windshields 3 and the middle reinforcement plates 6 are fixed with screws;

[0029] 4. The middle slideway 4 is placed, and is fixedly connected with the fixing holes 9 on the two side windshields 3 and the middle reinforcement plate 6 through the fixing grooves 421 of the middle slideway 4 with screws;

[0030] 5. Filters are placed into the first filter accommodation cavity 81 and the second filter accommodation cavity 82, and then the outer sealing plate 7 and the left and right side plates 1 are fixed with screws.

[0031] It can be understood that for those skilled in the art, any equivalent replacement or change to the technical solution and the inventive concept of the present utility model should fall within the protection scope of the claims attached to the present utility model.

Claims

1. An external side-drawn multi-layer filter screen frame, characterized in that: The filter frame is a rectangular frame structure, with a left side plate (11) and a right side plate (12) symmetrically arranged on the left and right sides thereof, and an upper side plate (21) and a lower side plate (22) symmetrically arranged on the upper and lower sides of the filter frame, wherein an upper slideway (51) is arranged on the surface opposite to the lower side plate (22), and a lower slideway (52) is arranged on the lower side plate (22) corresponding to the upper slideway (51), and wind shield plates (3) are symmetrically arranged on the front and rear sides of both left and right ends of the upper slideway (51) and the lower slideway (52), and wind shield plates (3) are arranged on both sides. Intermediate reinforcing plates (6) are symmetrically arranged on the front and rear sides of the middle part, and the windshield plate (3) and the intermediate reinforcing plate (6) are fixedly connected to the upper side plate (21) and the lower side plate (22); an intermediate slideway (4) is fixed between the two intermediate reinforcing plates (6), and both ends of the intermediate slideway (4) are fixedly connected to the corresponding windshield plate (3); a first filter screen accommodating chamber (81) is formed between the upper part of the intermediate slideway (4) and the upper slideway (51), and a second filter screen accommodating chamber (82) is formed between the lower part of the intermediate slideway (4) and the lower slideway (52).

2. The external side-drawn multi-layer filter screen frame according to claim 1 is characterized in that: The left side plate (11) and the right side plate (12) are both provided with external sealing plates (7); after the first filter screen accommodating cavity (81) and the second filter screen accommodating cavity (82) are placed with the filter screen, they are locked and fixed with the corresponding left side plate (11) and right side plate (12) through the external sealing plates (7).

3. The external side-drawn multi-layer filter screen frame according to claim 1 is characterized in that: The middle slideway (4) comprises a middle reinforcement structure (41) with an H-shaped cross section, and two side reinforcement structures (42) with rectangular cross sections are symmetrically arranged on both sides of the middle reinforcement structure (41).

4. The external side-drawn multi-layer filter screen frame according to claim 3 is characterized in that: The outer walls of the two side reinforcing structures (42) are provided with fixing grooves (421) for cooperating with the fixing holes (9) provided on the wind shield (3) and the middle reinforcing plate (6), so that the middle slideway (4) is fixed to the wind shield (3) and the middle reinforcing plate (6) through threaded connection, and the inner walls of the wind shield (3) and the middle reinforcing plate (6) are pressed tightly against the two side reinforcing structures (42).

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