Integrally-formed air filter

Abstract

The utility model discloses an integrally-formed air filter, and aims to solve the problems that a filter bag of an existing air filter is easy to fall off and a filter substance is relatively single. The device comprises an upper mold, a lower mold, a frame and a plurality of filter bags, the multiple filter bags are sequentially connected from head to tail, the multiple filter bags are all installed on the lower mold through the frame, a polyurethane foaming agent is injected into each filter bag, and part of the polyurethane foaming agent surrounds the frame after being formed; the upper mold and the lower mold are detachably connected; the upper mold is used for molding a polyurethane foaming agent and the plurality of connected filter bags into an integrated structure; according to the filter, the multiple filter bags are sequentially connected from head to tail, so that the multiple filter bags are integrally formed, the possibility that the filter bags fall off from the frame is reduced, and the filter can effectively remove pollutants such as dust, bacteria and pollen through the arrangement that the polyurethane foaming agent and the filter bags are integrally formed.

Description

Technical Field

[0001] The present application relates to the technical field of filters, and in particular to an integrally formed air filter. Background Art

[0002] Air filter refers to the device for air filtration, which mainly includes five types: coarse filter, medium filter, high filter, sub-high efficiency filter and high efficiency filter. Each type has different standards and performance. Air filter, pressure valve and oil mist collector are called the three major pneumatic parts, which are generally used in clean workshops, factories, operating rooms, laboratories, etc., or for dust prevention of electronic machinery and communication equipment. The pollution sources of clean rooms mainly refer to two categories: dust and bacteria.

[0003] Many companies use multi-bag air filters in production to filter indoor air. However, most of the existing multi-bag air filters can only filter dust when in use, and can only filter out dust in the air, but cannot eliminate bacteria and harmful substances in the air. The function is too single and can no longer meet the needs of users.

[0004] In addition, the existing installation method of the air filter is to put a filter bag between the upper frame and the lower frame, and then fix the upper frame and the lower frame together by using hot melt adhesive. In mass production, a large amount of hot melt adhesive is consumed, and in subsequent use, the upper frame and the lower frame may not be tightly closed, causing the filter bag to fall off the smooth edge of the frame. Utility Model Content

[0005] To this end, the present application provides an integrally formed air filter to solve the problem that the upper frame and the lower frame of the existing filter frame fixed with hot melt adhesive are not tight enough, thereby causing the filter bag to fall off.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] An integrally formed air filter comprises an upper mold, a lower mold, a frame and a plurality of filter bags;

[0008] Multiple filter bags are connected in sequence from the beginning to the end, and the multiple filter bags are installed on the lower mold through the frame. Polyurethane foaming agent is injected into each filter bag, and part of the polyurethane foaming agent is formed around the frame;

[0009] The upper mold and the lower mold are detachably connected;

[0010] The upper mold is used to mold the polyurethane foaming agent and the connected multiple filter bags into an integrated structure.

[0011] Optionally, the upper mold includes a first bottom plate and a mold block, the first bottom plate is detachably connected to the lower mold, a plurality of mold blocks are arranged at intervals on the surface of the first bottom plate, and the plurality of mold blocks are inserted into the filter bag in a one-to-one correspondence.

[0012] Optionally, the lower mold includes a mold plate; the first bottom plate is detachably connected to the mold plate, a plurality of mold holes are spaced apart on the mold plate, a plurality of filter bags are arranged one by one on the mold holes, and the plurality of connected filter bags are connected to the mold plate through a frame.

[0013] Optionally, the frame includes a frame body and crossbeams, a plurality of crossbeams are arranged at intervals in the frame body, the bag edge of the filter bag is arranged between the frame body and the mold plate, and the plurality of crossbeams press the connection structure between two adjacent filter bags onto the mold plate in a one-to-one correspondence.

[0014] Optionally, the upper mold further includes an upper frame, and the lower mold further includes a second bottom plate and a lower frame;

[0015] The upper frame and the lower frame are detachably connected, the outer periphery of the first bottom plate is provided with the upper frame, the outer periphery of the mold plate is provided with the second bottom plate, and the outer periphery of the second bottom plate is provided with the lower frame;

[0016] The frame is installed between the mold plate and the lower frame, and the bag edge of the filter bag is located between the second bottom plate and the frame;

[0017] During operation, the surface of the upper frame abuts against the surface of the lower frame.

[0018] Optionally, the lower mold also includes an inner step, and an inner step is arranged between the lower frame and the second bottom plate. The frame also includes a boss, and the boss is arranged on the surface of the frame; the boss is installed on the groove structure composed of the inner step, the mold plate and the second bottom plate.

[0019] Optionally, the upper mold also includes a first clamping part, the lower mold also includes a second clamping part, the surface of the upper frame is provided with multiple first clamping parts, the surface of the lower frame is provided with multiple second clamping parts, and the multiple first clamping parts are connected with the multiple second clamping parts in a one-to-one corresponding clamping connection.

[0020] Optionally, the lower mold further includes an upper step, and the surface of the lower frame is provided with the upper step;

[0021] During operation, the surface of the first bottom plate abuts against the surface of the upper step.

[0022] Optionally, the length and width of the frame through hole between each two adjacent beams are equal to the length and width of the corresponding mold hole.

[0023] Compared with the prior art, this application has at least the following beneficial effects:

[0024] 1. The present application realizes the integration of multiple filter bags by sequentially connecting multiple filter bags from the beginning to the end, and reduces the possibility of the filter bags falling off the frame by arranging multiple filter bags on the lower mold;

[0025] 2. The present application further reduces the possibility of the filter bag falling off the frame by forming the foaming agent and the filter bag in one piece and surrounding the frame after forming a part of the polyurethane foaming agent;

[0026] 3. The present application adopts the setting that the polyurethane foaming agent and the filter bag are integrally formed so that the filter can effectively remove pollutants such as dust, bacteria, and pollen. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more intuitively illustrate the prior art and the present application, exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing the present application; for example, those skilled in the art are capable of easily making conventional adjustments or further optimizations to the increase / decrease / attribution division, specific shapes, positional relationships, connection methods, and dimensional ratios of certain unit components based on the technical concepts and exemplary drawings disclosed in the present application.

[0028] Figure 1 An assembly diagram of an integrally formed air filter provided in one embodiment of the present application;

[0029] Figure 2 An exploded view of an integrally formed air filter provided by one embodiment of the present application;

[0030] Figure 3 A structural diagram of an upper mold of an integrally formed air filter provided in one embodiment of the present application;

[0031] Figure 4 for Figure 3 A partial enlarged view of

[0032] Figure 5 A structural diagram of a lower mold of an integrally formed air filter provided in one embodiment of the present application;

[0033] Figure 6 for Figure 5 One of the partial enlarged pictures;

[0034] Figure 7 for Figure 5 The second partial enlarged picture;

[0035] Figure 8 A structural diagram of an integrally formed air filter frame provided in one embodiment of the present application;

[0036] Fig. 9for Figure 8 A partial enlarged view of

[0037] Fig.10 This is a structural diagram after multiple filter bags are connected;

[0038] Description of reference numerals:

[0039] 1. upper mold; 11. upper frame; 12. mold block; 13. first clamping part; 14. first bottom plate;

[0040] 2. lower mold; 21. mold plate; 22. inner step; 23. mold hole; 24. second bottom plate; 25. lower frame; 26. upper step; 27. second clamping part;

[0041] 3. frame; 31. frame body; 32. beam; 33. boss; 34. frame through hole;

[0042] 4. Filter bag; 42. Bag edge. DETAILED DESCRIPTION

[0043] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0044] In the description of this application: unless otherwise specified, "plurality" means two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to, and do not have special meanings in terms of technical connotations. For example, they should not be understood as emphasizing the importance or order, etc. The expressions "including", "comprising", "having", etc. also mean "not limited to" certain units, components, materials, steps, etc.

[0045] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this application are usually used to indicate the general relative position relationship for the purpose of intuitive understanding by referring to the drawings, and are not absolute limitations on the position relationship in the actual product.

[0046] In one embodiment of the present application, an integrally formed air filter is provided. Figure 1-Figure 10 As shown, it includes an upper mold 1, a lower mold 2, a frame 3 and a plurality of filter bags 4;

[0047] Multiple filter bags 4 are connected in sequence from the beginning to the end, and the multiple filter bags 4 are installed on the lower mold 2 through the frame 3. Polyurethane foaming agent is injected into each filter bag 4, and part of the polyurethane foaming agent is formed around the frame 3;

[0048] The upper mold 1 and the lower mold 2 are detachably connected;

[0049] The upper mold 1 is used to mold the polyurethane foaming agent and the connected plurality of filter bags 4 into an integrated structure.

[0050] Specifically, AB (polyurethane foaming agent, black material and white material) foaming agent is injected into multiple filter bags 4 through a foaming machine, heated to 40°C, and foamed for 15 minutes. Then, the upper mold 1 is installed between the upper mold 1 and the lower mold 2, and the upper mold 1 is inserted on the multiple filter bags 4. The filter bags 4 and the polyurethane foaming agent are pressed into one through the upper mold 1; the multiple filter bags 4 are hung on the lower mold 2 through the connecting structure between the multiple filter bags 4.

[0051] Each filter bag 4 is made of glass fiber or chemical fiber material.

[0052] A plurality of filter bags 4 are sewn together in sequence from head to tail.

[0053] The multiple filter bags 4 are connected in sequence from the beginning to the end to form a whole. The multiple filter bags 4 are hung on the lower mold 2 to reduce the possibility of the filter bags 4 falling off the frame 3.

[0054] The possibility of the filter bag 4 falling off from the frame 3 is further reduced by forming the foaming agent and the filter bag 4 in one piece and surrounding the frame 3 after a part of the polyurethane foaming agent is formed;

[0055] The polyurethane foaming agent and the filter bag 4 are integrally formed so that the filter can effectively remove pollutants such as dust, bacteria, and pollen.

[0056] Preferably, if Figures 3 to 10 As shown, the upper mold 1 includes a first bottom plate 14 and a mold block 12. The first bottom plate 14 is detachably connected to the lower mold 2. A plurality of mold blocks 12 are arranged at intervals on the surface of the first bottom plate 14. The plurality of mold blocks 12 are inserted into the filter bag 4 one by one.

[0057] The lower mold 2 includes a mold plate 21; the first bottom plate 14 is detachably connected to the mold plate 21, and a plurality of mold holes 23 are spaced apart on the mold plate 21, and a plurality of filter bags 4 are arranged one by one on the mold holes 23, and the plurality of connected filter bags 4 are connected to the mold plate 21 through the frame 3.

[0058] The frame 3 includes a frame body 31 and a crossbeam 32. A plurality of crossbeams 32 are arranged at intervals in the frame body 31. The bag edge 42 of the filter bag 4 is arranged between the frame body 31 and the mold plate 21. The plurality of crossbeams 32 press the connection structure between two adjacent filter bags 4 onto the mold plate 21 in a one-to-one correspondence.

[0059] Preferably, if Figures 3 to 10 As shown, the length and width of the frame through hole 34 between each two adjacent beams 32 are equal to the length and width of the corresponding mold hole 23 .

[0060] The length of the mold block 12 is between 0.5 mm and 3 mm smaller than the length of the mold hole 23;

[0061] The width of the mold block 12 is between 0.5 mm and 3 mm smaller than the width of the mold hole 23;

[0062] Specifically, the length of the mold block 12 is 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm or 3 mm smaller than the length of the mold hole 23;

[0063] The width of the die block 12 is 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm or 3 mm smaller than the width of the die hole 23;

[0064] The four sides of the mold block 12 are provided with chamfers;

[0065] Preferably, if Figures 3 to 10 As shown, the upper mold 1 further includes an upper frame 11, and the lower mold 2 further includes a second bottom plate 24 and a lower frame 25;

[0066] The upper frame 11 and the lower frame 25 are detachably connected. The upper frame 11 is disposed on the periphery of the first bottom plate 14, the second bottom plate 24 is disposed on the periphery of the mold plate 21, and the lower frame 25 is disposed on the periphery of the second bottom plate 24.

[0067] The frame 3 is installed between the mold plate 21 and the lower frame 25, and the bag edge 42 of the filter bag 4 is located between the second bottom plate 24 and the frame body 31;

[0068] During operation, the surface of the upper frame 11 abuts against the surface of the lower frame 25 .

[0069] The upper frame 11 and the lower frame 25 are connected by means of a snap connection, a rotating shaft connection, or a screw connection.

[0070] The lower mold 2 also includes an inner step 22, and an inner step 22 is arranged between the lower frame 25 and the second bottom plate 24. The frame 3 also includes a boss 33, and the boss 33 is arranged on the surface of the frame body 31; the boss 33 is installed on the groove structure composed of the inner step 22, the mold plate 21 and the second bottom plate 24.

[0071] Preferably, if Figure 5 , Figure 8 As shown, the upper mold 1 also includes a first clamping portion 13, and the lower mold 2 also includes a second clamping portion 27. The surface of the upper frame 11 is provided with multiple first clamping portions 13, and the surface of the lower frame 25 is provided with multiple second clamping portions 27. The multiple first clamping portions 13 are clamped and connected with the multiple second clamping portions 27 in a one-to-one corresponding manner.

[0072] Specifically, the number of the first clamping parts 13 and the number of the second clamping parts 27 are both four. The four first clamping parts 12 are respectively disposed at the four corners of the upper frame 11 , and the four second clamping parts 27 are respectively disposed at the four corners of the lower frame 25 .

[0073] Reliable crimping between the upper mold 2 and the lower mold 3 is achieved through the one-to-one corresponding clamping connection between the plurality of first clamping parts 13 and the plurality of second clamping parts 27 .

[0074] The lower mold 2 further includes an upper step 26, and the surface of the lower frame 25 is provided with the upper step 26;

[0075] During operation, the surface of the first bottom plate 14 abuts against the surface of the upper step 26 .

[0076] When the above embodiment is in use, the mold block 12 is inserted into the mold hole 23, and the filter bag 4 is located between the mold block 12 and the mold hole 23. The filter bag 4, the foaming agent, the mold block 12 and the inner wall of the mold hole 23 form a crimping form, thereby realizing reliable molding of the filter bag 4 and the foaming agent.

[0077] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

Claims

1. An integrally formed air filter, characterized in that: It comprises an upper mold (1), a lower mold (2), a frame (3) and a plurality of filter bags (4); The plurality of filter bags (4) are connected in sequence from the beginning to the end, and the plurality of filter bags (4) are installed on the lower mold (2) through the frame (3), and each of the filter bags (4) is injected with a polyurethane foaming agent, and a portion of the polyurethane foaming agent is formed and surrounds the frame (3); The upper mold (1) and the lower mold (2) are detachably connected; The upper mold (1) is used to mold the polyurethane foaming agent and the multiple connected filter bags (4) into an integrated structure.

2. The filter according to claim 1, characterized in that The upper mold (1) comprises a first bottom plate (14) and a mold block (12); the first bottom plate (14) is detachably connected to the lower mold (2); a plurality of the mold blocks (12) are arranged at intervals on the surface of the first bottom plate (14); and the plurality of the mold blocks (12) are inserted into the filter bag (4) in a one-to-one correspondence.

3. The filter according to claim 2, characterized in that The lower mold (2) comprises a mold plate (21); the first bottom plate (14) is detachably connected to the mold plate (21); a plurality of mold holes (23) are spaced apart on the mold plate (21); a plurality of filter bags (4) are arranged on the mold holes (23) in a one-to-one correspondence; and the plurality of connected filter bags (4) are connected to the mold plate (21) via the frame (3).

4. The filter according to claim 3, characterized in that The frame (3) comprises a frame body (31) and a crossbeam (32), a plurality of the crossbeams (32) are arranged at intervals in the frame body (31), a bag edge (42) of the filter bag (4) is arranged between the frame body (31) and the mold plate (21), and the plurality of crossbeams (32) press the connection structure between two adjacent filter bags (4) onto the mold plate (21) in a one-to-one correspondence.

5. The filter according to claim 4, characterized in that The upper mold (1) further comprises an upper frame (11), and the lower mold (2) further comprises a second bottom plate (24) and a lower frame (25); The upper frame (11) and the lower frame (25) are detachably connected, the upper frame (11) is arranged on the periphery of the first bottom plate (14), the second bottom plate (24) is arranged on the periphery of the mold plate (21), and the lower frame (25) is arranged on the periphery of the second bottom plate (24); The frame (3) is installed between the mold plate (21) and the lower frame (25), and the bag edge (42) of the filter bag (4) is located between the second bottom plate (24) and the frame body (31); During operation, the surface of the upper frame (11) abuts against the surface of the lower frame (25).

6. The filter according to claim 5, characterized in that The lower mold (2) further comprises an inner step (22), and the inner step (22) is arranged between the lower frame (25) and the second bottom plate (24). The frame (3) further comprises a boss (33), and the boss (33) is arranged on the surface of the frame body (31); the boss (33) is installed on a groove-shaped structure composed of the inner step (22), the mold plate (21) and the second bottom plate (24).

7. The filter according to claim 6, characterized in that The upper mold (1) further includes a first clamping portion (13), and the lower mold (2) further includes a second clamping portion (27). A plurality of the first clamping portions (13) are arranged on the surface of the upper frame (11), and a plurality of the second clamping portions (27) are arranged on the surface of the lower frame (25). The plurality of the first clamping portions (13) and the plurality of the second clamping portions (27) are clamped and connected in a one-to-one corresponding manner.

8. The filter according to claim 7, characterized in that The lower mold (2) further comprises an upper step (26), and the surface of the lower frame (25) is provided with the upper step (26); During operation, the surface of the first bottom plate (14) abuts against the surface of the upper step (26).

9. The filter according to claim 8, characterized in that The length and width of the frame through hole (34) between each two adjacent cross beams (32) are equal to the length and width of the corresponding mold hole (23).

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