Flat plate type filter with high-rigidity plastic shell

Abstract

The utility model relates to a high-rigidity flat plate type filter with a plastic shell, and belongs to the technical field of filters. Comprising a plastic shell, a supporting frame and a filter element, the two ends of the plastic shell are open, the supporting frame is arranged in the plastic shell, the filter element is arranged in the plastic shell, and the supporting frame is fixedly connected to the interior of the plastic shell and divides the interior of the plastic shell into a plurality of filling cavities; the filter element comprises a plurality of filter element units which are arranged in the filling cavities in a one-to-one correspondence mode, a flange is arranged on the sealing end face of the plastic shell, a plurality of installation holes are evenly distributed in the flange in the circumferential direction of the flange, and an annular sealing ring is arranged on the surface, away from the plastic shell, of the flange. According to the utility model, the problems of heavy weight and complicated structure of a flat plate type filter in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to a high-rigidity plastic shell flat plate filter, belonging to the technical field of filters. Background Art

[0002] At present, almost all flat-plate filters on the market use filter housings made of metal, mainly aluminum profile housings, with a small amount of stainless steel and carbon steel housings. The connection methods used are top tightening, compression tightening and liquid tank sealing.

[0003] The metal shell does not meet the weight requirements of the aerospace system filter, and the liquid tank seal connection method does not meet the vibration resistance requirements of the filter after connection. Both the top tightening method and the compression method require force to be applied to the rear end of the filter (non-sealed end face) to tighten. Therefore, at least 4 clamping rods with a length greater than the depth dimension of the filter (or 1 square box with a length greater than the depth dimension) need to be led out from the sealing surface of the equipment where the filter is installed, and a clamping block is added to perform compression. This greatly increases the weight and design difficulty of the clamping mechanism on the equipment where the filter is installed, and also increases the weight of the equipment itself.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a high-rigidity plastic shell flat-plate filter, which solves the problem of heavy weight and complex structure of the flat-plate filter in the prior art.

[0006] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0007] A high-rigidity plastic shell flat filter comprises a plastic shell with open ends, a support frame arranged inside the plastic shell, and a filter element arranged inside the plastic shell. The support frame is fixedly connected to the inside of the plastic shell and divides the inside of the plastic shell into a plurality of filling cavities. The filter element comprises a plurality of filter element units and is arranged one-to-one in each filling cavity. A flange is provided on the sealing end face of the plastic shell, and a plurality of mounting holes are evenly distributed around the flange in a circumferential direction. An annular sealing ring is provided on the surface of the flange away from the plastic shell.

[0008] The utility model is further configured as follows: the plastic shell includes a pair of end plates and a pair of side plates, the pair of end plates are respectively located at the two ends of the side plates, the pair of end plates and the pair of side plates cooperate to form a frame-like structure, and a first connecting member is provided between the side plates and the end plates, the first connecting member includes a first connecting hole opened at the end of the side plate and penetrating along the thickness thereof, a first threaded hole opened on the end face of the end plate and corresponding to the first connecting hole, and a first screw passing through the first connecting hole and threadedly connected to the first threaded hole.

[0009] The utility model is further configured as follows: a mortise and tenon structure is provided between the side plate and the end plate, and the mortise and tenon structure includes a plug-in groove opened at the end of the side plate and penetrating along the thickness direction thereof, and a plug-in block fixedly connected to the end face of the end plate and matching with the plug-in groove.

[0010] The utility model is further configured as follows: a plurality of second connecting members are arranged between the flange and the sealing end face of the plastic shell, the second connecting members include a second connecting hole opened in the flange and penetrating along the thickness direction thereof, a second threaded hole opened in the end face of the plastic shell and corresponding to the second connecting hole, and a second screw passing through the second connecting hole and threadedly connected to the second threaded hole.

[0011] The utility model is further configured as follows: an annular groove is provided on the end surface of the flange away from the plastic shell, and the annular sealing ring is arranged in the annular groove and protrudes from the end surface of the flange.

[0012] The utility model is further configured as follows: the support frame comprises a transverse plate and a longitudinal plate which are perpendicular to each other and in a cross structure, and both ends of the transverse plate and both ends of the longitudinal plate are in contact with the inner wall of the plastic shell.

[0013] The utility model is further configured as follows: a first groove is opened in the middle of one side of the horizontal plate, a second groove is opened in the middle of the other side of the vertical plate, and the horizontal plate and the vertical plate are plugged into each other through the first groove and the second groove.

[0014] The utility model is further configured as follows: both side edges of the transverse plate and the longitudinal plate are fixedly connected with baffles extending along their respective length directions, and the baffles are perpendicular to the transverse plate and the longitudinal plate.

[0015] The utility model is further configured as follows: the non-sealed end surface of the plastic shell is provided with a first rib folded inwardly, and the inner edge of the flange extends toward the center of the plastic shell to form a second rib.

[0016] The utility model is further configured as follows: the periphery of the filter element unit is fixedly connected to the inner wall of the filling cavity by means of sealant.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. By integrally making the plastic housing of rigid plastic material and providing a flange at the end face of the plastic housing, and installing the flat filter through the cooperation of the flange and the annular sealing ring, not only is the overall weight greatly reduced, with the weight being only about half of that of the aluminum profile, but also the traditional top-tightening method, pressing method and liquid tank sealing method are replaced, and the weight and design difficulty of the pressing mechanism on the equipment for installing the filter can be greatly reduced;

[0019] 2. By providing a support frame inside the plastic housing, the overall structural strength of the filter housing is enhanced, and according to different usage conditions, the support frame can be adjusted into shapes such as "one" shape, "two" shape, "three" shape, "nian" shape, "sa" shape, etc. to adapt to different vibration intensities of the filter;

[0020] 3. By dividing the plastic housing into side plates and end plates for assembly connection, and dividing the support frame into cross plates and longitudinal plates for assembly connection, it is convenient for disassembly, assembly and transportation, and a double fixing method of a first connecting piece and a mortise and tenon structure is provided between the side plates and the end plates, increasing the rigidity and strength of the connection;

[0021] 4. By respectively providing a first edge stop and a second edge stop at both end faces of the plastic housing, and providing edge strips at both side edges of the cross plate and the longitudinal plate, so that after the overall plastic housing is assembled, both ends of each filling cavity have a positioning structure, making the filter element unit more stable in the filling cavity.

[0022] 5. By using the support frame to divide the interior of the plastic housing into several filling cavities, and respectively sealing and connecting the filter element units with sealant in each filling cavity, to ensure that the filtered gas will not be short-circuited when passing through the front and rear end faces of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0024] Figure 2 is Figure 1 a partial enlarged view of part A in

[0025] Figure 3 It is an exploded structural schematic diagram of the plastic housing part of the present utility model.

[0026] Figure 4 It is a structural schematic diagram of the plastic housing and the support frame part of the present utility model.

[0027] Figure 5 It is a structural schematic diagram of the plastic housing and the support frame part of the present utility model.

[0028] Figure 6It is a structural schematic diagram of the filter element unit and the support frame part in the utility model.

[0029] Figure 7 It is a schematic diagram of the exploded structure of the support frame part of the utility model.

[0030] In the figure: 1. plastic shell; 2. support frame; 3. filter element unit; 4. end plate; 5. side plate; 6. mortise and tenon structure; 7. plug-in slot; 8. plug-in block; 9. first connecting member; 10. first connecting hole; 11. first threaded hole; 12. first screw; 13. flange; 14. mounting hole; 15. second connecting member; 16. second connecting hole; 17. second threaded hole; 18. second screw; 19. annular sealing ring; 20. annular groove; 21. horizontal plate; 22. longitudinal plate; 23. filling cavity; 24. sealant; 25. first groove; 26. second groove; 27. baffle; 28. first rib; 29. ​​second rib. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific illustrations.

[0032] like Figure 1-Figure 7 As shown, a high-rigidity plastic shell flat filter includes a plastic shell 1 with open ends, a support frame 2 arranged inside the plastic shell 1, and a filter element arranged inside the plastic shell 1, wherein the plastic shell 1 and the support frame 2 are preferably made of hard plastic, and the plastic shell 1 includes a pair of end plates 4 and a pair of side plates 5, the pair of end plates 4 are respectively located at the two ends of the side plates 5, and the pair of end plates 4 and the pair of side plates 5 cooperate to form a frame structure.

[0033] In order to ensure the stability of the connection between the end plate 4 and the side plate 5, a mortise and tenon structure 6 is provided between the side plate 5 and the end plate 4. The mortise and tenon structure 6 includes a plug-in groove 7 opened at the end of the side plate 5 and penetrating along the thickness direction thereof, and a plug-in block 8 fixedly connected to the end face of the end plate 4 and matching with the plug-in groove 7. The plug-in groove 7 and the plug-in block 8 are preferably set to be waist-shaped.

[0034] A first connecting member 9 is provided between the side plate 5 and the end plate 4. The first connecting member 9 includes a first connecting hole 10 opened at the end of the side plate 5 and penetrating along the thickness thereof, a first threaded hole 11 opened at the end surface of the end plate 4 and corresponding to the first connecting hole 10, and a first screw 12 passing through the first connecting hole 10 and threadedly connected to the first threaded hole 11.

[0035] The sealing end face of the plastic housing 1 is provided with a flange 13. The flange 13 is preferably made of hard plastic. A plurality of mounting holes 14 are evenly distributed around the circumferential direction of the flange 13. A plurality of second connecting members 15 are provided between the flange 13 and the sealing end face of the plastic housing 1. The second connecting member 15 includes a second connecting hole 16 opened in the flange 13 and penetrating along its thickness direction, a second threaded hole 17 opened in the end face of the plastic housing 1 and corresponding to the second connecting hole 16, and a second screw 18 passing through the second connecting hole 16 and threadedly connected to the second threaded hole 17. The second screw 18 is preferably a countersunk head screw to ensure the flatness of the end face of the flange 13, which is beneficial to the sealing between the filter and the equipment for installing the filter after installation.

[0036] The surface of the flange 13 away from the plastic housing 1 is provided with an annular sealing ring 19. An annular groove 20 is opened on the end face of the flange 13 away from the plastic housing 1. The annular sealing ring 19 is arranged in the annular groove 20 and protrudes from the end face of the flange 13. During the installation of the filter, the annular sealing ring 19 on the end face of the flange 13 is compressed to achieve the sealing between the filter and the equipment for installing the filter.

[0037] The support frame 2 includes a cross plate 21 and a longitudinal plate 22 that are perpendicular to each other and in a cross structure. Both ends of the cross plate 21 and both ends of the longitudinal plate 22 are abutted against the inner wall of the plastic housing 1. By arranging the support frame 2 inside the plastic housing 1, the overall structural strength of the filter housing is enhanced, and according to different operating conditions, the support frame 2 can be adjusted into shapes such as "one" shape, "two" shape, "three" shape, "卄" shape, "卅" shape, etc. to adapt to different vibration intensities of the filter.

[0038] The support frame 2 is fixedly connected inside the plastic housing 1 and divides the inside of the plastic housing 1 into four filling cavities 23. The filter element includes four filter element units 3 and is correspondingly arranged inside each filling cavity 23. To ensure the sealing and stability between the filter element and the inner wall of the filling cavity 23, the peripheries of the filter element units 3 are fixedly connected to the inner wall of the filling cavity 23 through a sealing adhesive 24. By using the support frame 2 to divide the inside of the plastic housing 1 into several filling cavities 23 and sealingly connecting the filter element units 3 in each filling cavity 23 with the sealing adhesive 24 respectively, it is ensured that the filtered gas will not short-circuit when passing through the front and rear end faces of the filter.

[0039] A first cutting groove 25 is opened in the middle of one side of the cross plate 21, and a second cutting groove 26 is opened in the middle of the other side of the longitudinal plate 22. The cross plate 21 and the longitudinal plate 22 are inserted into each other through the first cutting groove 25 and the second cutting groove 26. On both sides of the cross plate 21 and the longitudinal plate 22, there are fixedly connected strip-shaped blocks 27 extending along their respective length directions. The strip-shaped blocks 27 are perpendicular to both the cross plate 21 and the longitudinal plate 22. The non-sealing end face of the plastic housing 1 is provided with a first flange 28 that is folded inward, and the inner edge of the flange 13 extends towards the center of the plastic housing 1 and forms a second flange 29.

[0040] By respectively setting a first retaining edge 28 and a second retaining edge 29 on the two end surfaces of the plastic shell 1, and respectively setting retaining strips on the two side edges of the transverse plate 21 and the longitudinal plate 22, after the plastic shell 1 is assembled as a whole, both ends of each filling cavity 23 have positioning structures, so that the filter element unit 3 is more stable in the filling cavity 23.

[0041] The implementation principle of the utility model is:

[0042] By setting the entire plastic shell 1 to be made of hard plastic material, and setting a flange 13 on the end face of the plastic shell 1, the flat filter is installed through the cooperation of the flange 13 and the annular sealing ring 19, not only the overall weight is greatly reduced, the weight is only about half of the aluminum profile, and the traditional jacking method, pressing method and liquid tank sealing method are replaced, which can greatly reduce the weight and design difficulty of the pressing mechanism on the equipment for installing the filter.

[0043] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-rigidity plastic shell flat filter, characterized in that: The invention comprises a plastic shell (1) with open ends, a support frame (2) arranged inside the plastic shell (1), and a filter element arranged inside the plastic shell (1); the support frame (2) is fixedly connected to the inside of the plastic shell (1) and divides the inside of the plastic shell (1) into a plurality of filling chambers (23); the filter element comprises a plurality of filter element units (3) and is arranged one by one inside each filling chamber (23); a flange (13) is provided on the sealing end surface of the plastic shell (1); a plurality of mounting holes (14) are evenly distributed around the flange (13); and a ring-shaped sealing ring (19) is provided on the surface of the flange (13) away from the plastic shell (1).

2. A high-rigidity plastic shell flat filter according to claim 1, characterized in that: The plastic shell (1) comprises a pair of end plates (4) and a pair of side plates (5), wherein the pair of end plates (4) are respectively located at the two ends of the side plates (5), and the pair of end plates (4) and the pair of side plates (5) cooperate to form a frame-like structure, and a first connecting member (9) is provided between the side plates (5) and the end plates (4), and the first connecting member (9) comprises a first connecting hole (10) opened at the end of the side plate (5) and penetrating along the thickness thereof, a first threaded hole (11) opened at the end surface of the end plate (4) and corresponding to the first connecting hole (10), and a first screw (12) passing through the first connecting hole (10) and threadedly connected to the first threaded hole (11).

3. A high-rigidity plastic shell flat filter according to claim 2, characterized in that: A mortise and tenon structure (6) is provided between the side plate (5) and the end plate (4), and the mortise and tenon structure (6) comprises a plug-in slot (7) which is opened at the end of the side plate (5) and penetrates along the thickness direction thereof, and a plug-in block (8) which is fixedly connected to the end surface of the end plate (4) and matches the plug-in slot (7).

4. A high-rigidity plastic shell flat filter according to claim 1, characterized in that: A plurality of second connecting members (15) are arranged between the flange (13) and the sealing end surface of the plastic housing (1), wherein the second connecting members (15) include a second connecting hole (16) opened in the flange (13) and penetrating along the thickness direction thereof, a second threaded hole (17) opened in the end surface of the plastic housing (1) and corresponding to the second connecting hole (16), and a second screw (18) passing through the second connecting hole (16) and threadedly connected to the second threaded hole (17).

5. The high-rigidity plastic shell flat filter according to claim 1, characterized in that: An annular groove (20) is formed on the end surface of the flange (13) away from the plastic housing (1), and the annular sealing ring (19) is arranged in the annular groove (20) and protrudes from the end surface of the flange (13).

6. The high-rigidity plastic shell flat filter according to claim 1, characterized in that: The support frame (2) comprises a transverse plate (21) and a longitudinal plate (22) which are perpendicular to each other and in a cross structure, and both ends of the transverse plate (21) and both ends of the longitudinal plate (22) are in contact with the inner wall of the plastic shell (1).

7. A high-rigidity plastic shell flat filter according to claim 6, characterized in that: A first groove (25) is provided in the middle of one side of the transverse plate (21), and a second groove (26) is provided in the middle of the other side of the longitudinal plate (22). The transverse plate (21) and the longitudinal plate (22) are plugged into each other via the first groove (25) and the second groove (26).

8. The high-rigidity plastic shell flat filter according to claim 6, characterized in that: Both side edges of the transverse plate (21) and the longitudinal plate (22) are fixedly connected with blocking bars (27) extending along their respective length directions, and the blocking bars (27) are perpendicular to the transverse plate (21) and the longitudinal plate (22).

9. A high-rigidity plastic shell flat filter according to claim 8, characterized in that: The non-sealed end surface of the plastic shell (1) is provided with a first rib (28) folded inwardly, and the inner edge of the flange (13) extends toward the center of the plastic shell (1) to form a second rib (29).

10. The high-rigidity plastic shell flat filter according to claim 1, characterized in that: The periphery of the filter element unit (3) is fixedly connected to the inner wall of the filling cavity (23) via a sealant (24).

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