Anti-blocking primary filter for air purification and filtration

Abstract

The utility model discloses an anti-blocking primary filter for air purification and filtration, which comprises a primary filter screen, a mounting frame I is arranged below the primary filter screen, four mounting grooves are formed in one side of the outer side wall of the mounting frame I, the inner walls of the four mounting grooves are fixedly connected with mounting slideways, and the mounting slideways are fixedly connected with the primary filter screen. And the inner walls of the four mounting sliding ways are slidably connected with fixing frames, four penetrating grooves are formed in the upper end of the first mounting frame, and one sides of the four penetrating grooves communicate with one sides of the four mounting grooves in a penetrating mode correspondingly. The four L-shaped fixing blocks penetrate through the four penetrating grooves respectively, so that the L-shaped fixing blocks are attached to the mounting slide ways, then the four fixing frames are pushed, the L-shaped fixing blocks are fixed through the inner walls of the fixing frames, and the fixing frames are matched with the L-shaped fixing blocks, so that the primary filter screen can be quickly detached from the frame; and dead angles of the detached primary filter screen can be cleaned, so that the filtering effect of the primary filter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a primary filter for anti-blocking air purification filtration. Background Technique

[0002] The primary filter is the primary filtration of the air conditioning system, which can conduct preliminary and simple filtration of the air, mainly filtering and intercepting particulate impurities such as dust and dirt in the air. The primary filter can be divided into three types: plate type, folding type and bag type, and is used for pre-filtration of large air compressors, centralized ventilation air conditioning systems and return air filtration in clean rooms to extend the service life of high-efficiency filters.

[0003] At present, the primary filters used in the market fix the filter net on the frame through foam glue. After using for a period of time, it is necessary to clean and sterilize the dust on the filter net. However, there are dead corners at the positions where the filter net contacts the frame, resulting in some positions not being cleaned, thus reducing the filtration effect of the primary filter. Content of the Utility Model

[0004] The purpose of the utility model is to provide a primary filter for anti-blocking air purification filtration, so as to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a primary filter for anti-blocking air purification filtration, including a primary filter net, an installation frame one is arranged below the primary filter net, four installation grooves are opened on one side of the outer side wall of the installation frame one, the inner walls of the four installation grooves are fixedly connected with installation slides, the inner walls of the four installation slides are slidably connected with fixing frames, four through grooves are opened at the upper end of the installation frame one, and one side of the four through grooves is respectively communicated with one side of the four installation grooves through penetration. An installation frame two is arranged above the installation frame one, and four L-shaped fixing blocks are fixedly connected to the lower end of the installation frame two, and the outer side walls of the four L-shaped fixing blocks are respectively clamped with the inner walls of the four fixing frames.

[0006] As a further preferred of this technical scheme, four limiting grooves are opened on the other side of the outer side wall of the installation frame one, one side of the four limiting grooves is respectively communicated with one side of the four installation grooves through penetration, the inner walls of the four limiting grooves are slidably connected with L-shaped limiting blocks, and the lower ends of the four L-shaped limiting blocks are fixedly connected with return springs, and one ends of the four return springs are respectively fixedly connected with the inner walls of the four limiting grooves.

[0007] As a further preferred of this technical scheme, a plurality of anti-slip strips are fixedly connected to one side of the four fixing frames.

[0008] As a further preference of the present technical solution, a rubber ring is fixedly connected to the lower edge of the first installation frame.

[0009] As a further preference of the present technical solution, two lifting grooves are provided at the upper end of the second installation frame.

[0010] As a further preference of the present technical solution, a sealing gasket is fixedly connected to the upper end of the first installation frame.

[0011] The utility model provides a primary filter for anti-blocking air purification filtration, which has the following

[0012] beneficial effects:

[0013] (1) In the utility model, by passing four L-shaped fixing blocks through four through grooves respectively, the L-shaped fixing blocks are fitted with the installation slides, and then pushing four fixing frames, the inner walls of the fixing frames fix the L-shaped fixing blocks. The cooperation between the fixing frames and the L-shaped fixing blocks can quickly disassemble the primary filter screen from the frame, and the disassembled primary filter screen can be cleaned at dead corners, thereby improving the filtering effect of the primary filter.

[0014] (2) When the fixing frames fix the L-shaped fixing blocks in the utility model, the reaction force of the return springs pushes the L-shaped limit blocks outwards, so that one side of the L-shaped limit blocks catches the fixing frames. The cooperation between the L-shaped limit blocks and the return springs can prevent the primary filter screen from being unstable when installed in the first installation frame and the second installation frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural diagram of the utility model;

[0016] Figure 2 is Figure 1 a partial enlarged view of area A in

[0017] Figure 3 is an exploded structural diagram of the first installation frame in the utility model;

[0018] Figure 4 is Figure 3 a partial enlarged view of area B in

[0019] In the figure: 1, primary filter screen; 2, first installation frame; 3, sealing gasket; 4, second installation frame; 5, lifting groove; 6, rubber ring; 7, installation groove; 8, fixing frame; 9, installation slide; 10, L-shaped limit block; 11, limit groove; 12, anti-slip strip; 13, L-shaped fixing block; 14, return spring; 15, through groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0021] The present utility model provides a technical solution: As Figure 1 - Figure 4 shown, in this embodiment, a primary filter for anti-blocking air purification and filtration includes a primary filter screen 1. Below the primary filter screen 1, there is an installation frame one 2. On one side of the outer side wall of the installation frame one 2, four installation grooves 7 are opened. The inner walls of the four installation grooves 7 are fixedly connected with installation slides 9. The inner walls of the four installation slides 9 are slidably connected with fixing frames 8. Four through grooves 15 are opened at the upper end of the installation frame one 2. One side of the four through grooves 15 is respectively in through communication with one side of the four installation grooves 7. Above the installation frame one 2, there is an installation frame two 4. Four L-shaped fixing blocks 13 are fixedly connected to the lower end of the installation frame two 4. The outer side walls of the four L-shaped fixing blocks 13 are respectively clamped with the inner walls of the four fixing frames 8. Pass the four L-shaped fixing blocks 13 through the four through grooves 15 respectively, so that the L-shaped fixing blocks 13 are attached to the installation slides 9, and then push the four fixing frames 8. The inner wall of the fixing frame 8 fixes the L-shaped fixing blocks 13. The cooperation of the fixing frame 8 and the L-shaped fixing blocks 13 can quickly disassemble the primary filter screen 1 from the frame, and the disassembled primary filter screen 1 can be cleaned without dead corners, thereby improving the filtering effect of the primary filter.

[0022] As Figure 2 and Figure 4 shown, on the other side of the outer side wall of the installation frame one 2, four limiting grooves 11 are opened. One side of the four limiting grooves 11 is respectively in through communication with one side of the four installation grooves 7. The inner walls of the four limiting grooves 11 are slidably connected with L-shaped limiting blocks 10. The lower ends of the four L-shaped limiting blocks 10 are fixedly connected with return springs 14. One ends of the four return springs 14 are respectively fixedly connected with the inner walls of the four limiting grooves 11. When the fixing frame 8 fixes the L-shaped fixing blocks 13, the reaction force of its return spring 14 pushes the L-shaped limiting blocks 10 outwards, so as to clamp one side of the L-shaped limiting blocks 10 to the fixing frame 8. The cooperation of the L-shaped limiting blocks 10 and the return springs 14 can prevent the primary filter screen 1 from being unstable when installed in the installation frame one 2 and the installation frame two 4.

[0023] As Figure 2 and Figure 4 shown, a plurality of anti-slip strips 12 are fixedly connected to one side of the four fixing frames 8. The anti-slip strips 12 are used to increase friction and facilitate the disassembly of the primary filter screen 1 from the installation frame one 2.

[0024] As Figure 1 - Figure 4As shown, a rubber ring 6 is fixedly connected to the lower edge of the first mounting frame 2. The rubber ring 6 is used to prevent gaps between the first mounting frame 2 and the equipment, so as to prevent some gases from entering the workshop without being filtered.

[0025] As Figure 1 and Figure 3 shown, two lifting slots 5 are provided at the upper end of the second mounting frame 4. The function of the lifting slots 5 is to facilitate the separation of the first mounting frame 2 and the second mounting frame 4 by the staff.

[0026] As Figure 1 - Figure 4 shown, a sealing gasket 3 is fixedly connected to the upper end of the first mounting frame 2. The sealing gasket 3 is used to seal the gap between the first mounting frame 2 and the second mounting frame 4.

[0027] The utility model provides a primary filter for anti-blocking air purification and filtration. The specific working principle is as follows:

[0028] When the primary filter screen 1 is used for a long time and the primary filter screen 1 is cleaned, first press the L-shaped limiting block 10 downward, and the return spring 14 deforms. The L-shaped limiting block 10 completely enters the limiting groove 11, so that the L-shaped limiting block 10 releases the restriction on the fixing frame 8. Then push the fixing frame 8 so that the fixing frame 8 slides on the installation slideway 9. When the fixing frame 8 slides to the other end of the installation groove 7, the reaction force of the return spring 14 fixes the fixing frame 8. The same operation is performed on the other three fixing frames 8 on the first mounting frame 2. The staff separates the first mounting frame 2 and the second mounting frame 4 through the lifting slot 5, and then takes out the primary filter screen 1 from the first mounting frame 2 for cleaning. After cleaning, the primary filter screen 1 is put into the first mounting frame 2. The four L-shaped fixing blocks 13 are respectively passed through the four through grooves 15 so that the L-shaped fixing blocks 13 are attached to the installation slideway 9. Then push the four fixing frames 8, and the inner wall of the fixing frame 8 fixes the L-shaped fixing blocks 13. When the fixing frame 8 fixes the L-shaped fixing blocks 13, the reaction force of its return spring 14 pushes the L-shaped limiting block 10 outwards, so that one side of the L-shaped limiting block 10 catches the fixing frame 8.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clogging-resistant primary filter for air purification and filtration, comprising a primary filter screen (1), characterized in that: A mounting frame (2) is provided below the primary filter (1), and four mounting grooves (7) are provided on one side of the outer wall of the mounting frame (2), and the inner walls of the four mounting grooves (7) are fixedly connected to mounting slideways (9), and the inner walls of the four mounting slideways (9) are slidably connected to fixing frames (8). Four through grooves (15) are provided at the upper end of the mounting frame (2), and one side of the four through grooves (15) is respectively connected to one side of the four mounting grooves (7). A mounting frame (4) is provided above the mounting frame (2), and four L-fixing blocks (13) are fixedly connected to the lower end of the mounting frame (4), and the outer walls of the four L-fixing blocks (13) are respectively engaged with the inner walls of the four fixing frames (8).

2. The anti-clogging primary filter for air purification and filtration according to claim 1, characterized in that: Four limiting grooves (11) are provided on the other side of the outer wall of the installation frame (2), one side of the four limiting grooves (11) is respectively connected to one side of the four installation grooves (7), the inner walls of the four limiting grooves (11) are slidably connected with L-shaped limiting blocks (10), the lower ends of the four L-shaped limiting blocks (10) are fixedly connected with return springs (14), and one end of the four return springs (14) is respectively fixedly connected to the inner walls of the four limiting grooves (11).

3. The anti-clogging primary filter for air purification and filtration according to claim 1, characterized in that: One side of each of the four fixing frames (8) is fixedly connected with a plurality of anti-slip strips (12).

4. The anti-clogging primary filter for air purification and filtration according to claim 1, characterized in that: A rubber ring (6) is fixedly connected to the lower edge of the mounting frame 1 (2).

5. The anti-clogging primary filter for air purification and filtration according to claim 1, characterized in that: The upper end of the second installation frame (4) is provided with two lifting grooves (5).

6. The anti-clogging primary filter for air purification and filtration according to claim 1, characterized in that: A sealing gasket (3) is fixedly connected to the upper end of the mounting frame 1 (2).

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