Filter absorber with replaceable filter material

Abstract

The utility model relates to the technical field of filter absorbers, in particular to a filter material replaceable type filter absorber which comprises a mounting frame fixedly mounted in an inner cavity of a filter absorber body, a filter plate is detachably mounted in an inner cavity of the mounting frame, and a dust overflow prevention mechanism is arranged at the top end of the inner cavity of the mounting frame. The dust overflow prevention mechanism comprises two winding drums symmetrically and rotatably connected to the top end of an inner cavity of the mounting frame, sealing pieces are wound on the peripheral walls of the winding drums, limiting plates fixedly connected with the sealing pieces are vertically and slidably connected to the positions, located on the two sides of the filter plate, of the inner cavity of the mounting frame, and inserting blocks are fixedly mounted at the bottom ends of the limiting plates; an inserting groove matched with the inserting block is formed in the bottom end of the inner cavity of the mounting frame; the two sides of the filter plate are wrapped by the sealing pieces, so that dust on the surface of the filter plate can be prevented from overflowing to the periphery of the inner cavity of the filter absorber main body in the dismounting process, the dust overflowing range caused by dismounting of the filter plate can be conveniently narrowed, and the filter absorber can be conveniently used by workers.

Description

Technical Field

[0001] The utility model relates to the technical field of filter absorbers, in particular to a filter absorber with replaceable filter material. Background Art

[0002] The filter absorber used in civil air defense projects is composed of an active free radical generator, a fine filter unit, a gas filter unit, inlet and outlet air diffusers, a blind cover and accessories, and is more common in daily life.

[0003] In the prior art, there is a utility model patent with the announcement number CN220802388U and the name of a filter absorber for civil air defense projects, which includes a filter absorber main body and an auxiliary structure. An air inlet is provided on one side of the filter absorber main body, and an air outlet is provided on the side of the filter absorber main body away from the air inlet. One side of the air inlet is connected to an air inlet pipe with the aid of the auxiliary structure. An adjustment structure is provided on the inner wall of the filter absorber main body. The adjustment structure includes two slide rails. The two slide rails are fixedly connected to the filter absorber main body. The inner walls of the two slide rails are both slidably connected to sliding bars. The sides of the two sliding bars close to each other are fixedly connected to the same connecting plate. The inner wall of the connecting plate is fixedly connected to the filter plate. One side of the two slide rails is fixedly connected to a fixed plate. The utility model solves the problem that the filter plate inside the filter absorber is inconvenient to disassemble.

[0004] The filter plate inside the patented filter absorber is easy for the staff to install and remove. However, the patented device requires sliding the filter plate when removing the filter plate. When the filter plate is subjected to slight vibration, the dust on its surface will diffuse outward to the surrounding of the inner cavity of the filter absorber, thereby increasing the labor burden of the staff and making it inconvenient to use. Utility Model Content

[0005] The purpose of the utility model is to provide a filter absorber with replaceable filter material.

[0006] The technical problem solved by the utility model is that the existing equipment needs to slide the filter plate when disassembling it, and the dust on the surface of the filter plate will diffuse outward when the filter plate is slightly vibrated, which will cause the internal contamination of the filter absorber.

[0007] The utility model can be implemented by the following technical solutions: a filter absorber with replaceable filter material, comprising a mounting frame fixedly mounted in the inner cavity of the filter absorber body, a filter plate detachably mounted in the inner cavity of the mounting frame, the filter plate comprising a U-shaped fixing frame and a filter screen in its inner cavity, a dust overflow prevention mechanism provided at the top of the inner cavity of the mounting frame, the dust overflow prevention mechanism comprising two winding drums symmetrically connected to the top of the inner cavity of the mounting frame, the winding drums being rotatably connected to the top of the inner cavity of the mounting frame via a rotating rod, a torsion spring being sleeved on the outer peripheral wall of the rotating rod and located on both sides of the winding drum, a sealing sheet being wound around the outer peripheral wall of the winding drum, and the sealing sheet being preferably a plastic sheet;

[0008] The inner cavity of the mounting frame and both sides of the filter plate are vertically slidably connected with a limit plate fixedly connected to the sealing plate, the bottom end of the limit plate is fixedly installed with an insert block, and the bottom end of the inner cavity of the mounting frame is provided with a slot that matches the insert block;

[0009] A limiting component for limiting the position of the inserting block is provided at the bottom end of the inner cavity of the installation frame.

[0010] A further technical improvement of the present invention is that the limiting assembly includes two connecting blocks symmetrically and slidingly connected to the bottom end of the inner cavity of the installation frame, the inner cavity of the connecting block is horizontally elastically and slidingly connected with a movable card block, and a card slot matching the movable card block is opened on one side of the insertion block, and the side of the movable card block close to the connecting block is arc-shaped, thereby facilitating the movable card block to enter the inner cavity of the corresponding card slot.

[0011] A further technical improvement of the present utility model is that a driving member for driving the two connecting blocks to move relative to each other is also provided at the bottom end of the inner cavity of the installation frame. The driving member includes a bidirectional screw rotatably connected to the bottom end of the inner cavity of the installation frame. The two sections of the external thread of the bidirectional screw with opposite thread rotation directions are both threaded with screw sleeves fixedly connected to the connecting block. The screw sleeves are slidably connected to the inner cavity of the installation frame. Rotating the bidirectional screw causes the two screw sleeves to move relative to each other in the inner cavity of the installation frame.

[0012] A further technical improvement of the present invention is that one end of the bidirectional screw passes through the mounting frame and extends to the outside of the mounting frame, and a rotary handle is fixedly installed on the end of the bidirectional screw extending to the outside of the mounting frame, and the outer peripheral wall of the rotary handle is engraved with anti-slip grooves, which makes it easier for users to turn the rotary handle.

[0013] A further technical improvement of the present invention is that a limit frame is fixedly installed at the top and bottom of the middle part of the inner cavity of the installation frame, a slider is fixedly installed at the top and bottom of the filter plate, and a sliding groove is opened in the inner cavity of the limit frame for sliding the slider.

[0014] A further technical improvement of the present invention is that a side of the limiting plate close to the limiting frame is horizontally elastically slidably connected to an extrusion block for limiting the filter plate, and a connecting channel for the extrusion block to pass through the inner cavity of the limiting frame.

[0015] A further technical improvement of the present invention is that an inner groove is provided on one side of the filter plate for facilitating its installation and removal, and the provision of the inner groove facilitates the user to slide the filter plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the filter plate is fully inserted into the inner cavity of the slot, the elastic force of the spring causes the movable block in the connecting block to enter the slot on one side of the plug block, thereby facilitating the position of the limit plate. By using the sealing sheet to wrap the two sides of the filter plate, it is not only possible to prevent dust on the surface of the filter plate from overflowing to the surrounding area of ​​the inner cavity of the filter absorber body during disassembly, but also convenient to reduce the scope of dust overflow due to disassembly of the filter plate, thereby facilitating the subsequent centralized cleaning of the staff and convenient use.

[0018] 2. The utility model only needs to slide the filter plate to complete the installation and removal work, thereby enabling the equipment to replace or repair and clean the filter plate in the filter absorber body, thereby improving the filtering and exhaust effects of the filter absorber body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structural connection between the mounting frame and the filter plate of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure connection of the installation frame of the utility model;

[0023] Figure 4 For this utility model Figure 3 A partial enlarged view of point A in the middle;

[0024] Figure 5 For this utility model Figure 3 A partial enlarged view of point B in the middle.

[0025] In the picture:

[0026] 1. Filter absorber body;

[0027] 2. Revolving door;

[0028] 3. Mounting frame; 31. Limiting frame; 32. Inner groove; 33. Rotating rod; 34. Winding drum; 35. Sealing piece; 36. Limiting plate; 37. Extrusion block; 38. Push rod; 39. Insert block; 310. Slot; 311. Torsion spring;

[0029] 4. Filter plate; 41. Inner groove;

[0030] 5. Receiving groove; 51. Bidirectional screw; 52. Screw sleeve; 53. Transmission plate; 54. Connecting block; 55. Moving block; 56. Rotary handle. DETAILED DESCRIPTION

[0031] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0032] See also Figure 1-5 As shown, this embodiment provides a technical solution, a filter absorber with replaceable filter material, including a filter absorber main body 1, the inner cavity of the filter absorber main body 1 is fixedly installed with a filter material installation frame 3, the inner cavity of the installation frame 3 is removably provided with a filter plate 4, and the front of the filter absorber main body 1 is rotatably connected to a rotating door 2 for convenient installation and removal of the filter plate 4.

[0033] The inner cavity of the mounting frame 3 is provided with a mounting groove, and the top and bottom ends of the middle part of the inner cavity of the mounting groove are fixedly installed with a limit frame 31, the top and bottom ends of the filter plate 4 are fixedly installed with sliders, and the inner cavity of the limit frame 31 is provided with a sliding groove for the slider to slide, and the filter plate 4 is provided with an inner groove 41 on the side close to the rotating door 2.

[0034] A dust-preventing mechanism is provided at the top of the inner cavity of the mounting frame 3. The dust-preventing mechanism includes two inner grooves 32 symmetrically opened at the top of the inner cavity of the mounting frame 3. A rotating rod 33 is rotatably connected between the two inner side walls of the inner groove 32 through a bearing. A winding drum 34 is fixedly sleeved on the outer peripheral wall of the rotating rod 33. A sealing sheet 35 is wound on the outer peripheral wall of the winding drum 34. The bottom end of the sealing sheet 35 passes through the mounting frame 3 and extends into the mounting groove of the mounting frame 3. Two limiting plates 36 are symmetrically and vertically slidably connected to the inner cavity of the mounting groove and located on both sides of the limit frame 31. The limiting plates 36 are fixedly connected to the sealing sheet 35.

[0035] Torsion springs 311 are sleeved on the outer peripheral wall of the rotating rod 33 and on both sides of the winding drum 34;

[0036] A squeeze block 37 is elastically and slidably connected horizontally to one side of the limit plate 36 near the limit frame 31. A communication channel for the squeeze block 37 to pass through is formed through one side of the limit frame 31. A lever 38 is fixedly mounted on one side of the squeeze block 37. One end of the lever 38 passes through the limit plate 36 and extends to the outside of the limit plate 36.

[0037] An inserting block 39 is fixedly mounted on one side of the limiting plate 36 away from the sealing sheet 35 , and a slot 310 matching with the inserting block 39 is formed at the bottom end of the inner cavity of the mounting frame 3 .

[0038] The bottom end of the inner cavity of the mounting frame 3 is provided with a limiting component for limiting the insertion block 39. The limiting component includes a receiving groove 5 opened at the bottom end of the inner cavity of the mounting frame 3. A bidirectional screw 51 is rotatably connected between the two inner side walls of the receiving groove 5 through a bearing. The side of the bidirectional screw 51 near the end is provided with two sections of external threads with opposite thread rotation directions. The two sections of external threads of the bidirectional screw 51 with opposite thread rotation directions are both threadedly sleeved with a screw sleeve 52 that is slidably connected to the inner cavity of the receiving groove 5. A transmission plate 53 is fixedly connected to the screw sleeve 52, and a connecting block 54 is fixedly installed on one side of the transmission plate 53. The inner cavity of the connecting block 54 is horizontally elastically slidably connected to a moving block 55, and a slot that cooperates with the moving block 55 is opened on one side of the insertion block 39.

[0039] One end of the bidirectional screw 51 passes through the installation frame 3 and extends to the outside of the installation frame 3 . A rotary handle 56 is fixedly mounted on the end of the bidirectional screw 51 extending to the outside of the installation frame 3 .

[0040] Before disassembling the filter plate 4, the utility model rotates the rotating door 2 to expose the mounting frame 3 and the filter plate 4, and then slides the levers 38 on both sides of the filter plate 4 respectively. The sliding of the lever 38 causes the extrusion block 37 to slide, and the sliding of the extrusion block 37 facilitates the release of the limit of the filter plate 4. After the limit is released, the two limit plates 36 slide downward respectively. The downward sliding of the limit plates 36 causes the sealing sheet 35 wound on the outer peripheral wall of the winding drum 34 to cover both sides of the filter plate 4. As the limit plates 36 continue to slide downward, the plug block 39 fixed at the bottom end thereof enters the mounting frame 3 and the filter plate 4 is released. When the insert block 39 is completely inserted into the inner cavity of the insert block 310, the elastic force of the spring causes the movable block 55 in the connecting block 54 to enter the slot on one side of the insert block 39, thereby limiting the position of the limiting plate 36. By using the sealing sheet 35 to wrap both sides of the filter plate 4, it is not only possible to prevent dust on the surface of the filter plate 4 from overflowing to the surrounding area of ​​the inner cavity of the filter absorber body 1 during the disassembly process, but also to reduce the scope of dust overflow caused by the removal of the filter plate 4, thereby facilitating the subsequent centralized cleaning of the dust by the staff.

[0041] Finally, the filter plate 4 can be disassembled by sliding the filter plate 4 through the inner groove 41 provided on one side of the filter plate 4.

[0042] Before installing the filter plate 4, clean the area surrounded by the two sealing sheets 35. After cleaning, slide the filter plate 4 into the inner cavity of the installation frame 3, and then rotate the bidirectional screw 51 to make the two screw sleeves 52 move in opposite directions. The screw sleeves 52 drive the connecting block 54 fixedly connected thereto to move synchronously. The movement of the connecting block 54 can simultaneously release the limit of the two limit plates 36. After the limit is released, the two limit plates 36 are reset by the action of the torsion spring 311. After the two limit plates 36 are reset, the elastic force of the spring can limit the two sides of the filter plate 4 through the extrusion block 37, thereby ensuring the stability of the filter plate 4 during installation and facilitating subsequent use.

[0043] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A filter absorber with replaceable filter material, comprising a mounting frame (3) fixedly mounted in the inner cavity of a filter absorber body (1), wherein a filter plate (4) is detachably mounted in the inner cavity of the mounting frame (3), characterized in that: A dust overflow prevention mechanism is provided at the top of the inner cavity of the installation frame (3), and the dust overflow prevention mechanism comprises two winding drums (34) symmetrically connected to the top of the inner cavity of the installation frame (3), the outer peripheral wall of the winding drum (34) is wound with a sealing sheet (35), and the inner cavity of the installation frame (3) and both sides of the filter plate (4) are vertically slidably connected with a limit plate (36) fixedly connected to the sealing sheet (35), the bottom end of the limit plate (36) is fixedly installed with an insert block (39), and the bottom end of the inner cavity of the installation frame (3) is provided with a slot (310) that matches the insert block (39); A limiting component for limiting the position of the insert block (39) is provided at the bottom end of the inner cavity of the installation frame (3).

2. The filter absorber with replaceable filter material according to claim 1, characterized in that: The limiting assembly comprises two connecting blocks (54) symmetrically slidably connected to the bottom end of the inner cavity of the installation frame (3); the inner cavity of the connecting blocks (54) is horizontally elastically slidably connected to a movable card block (55); and one side of the inserting block (39) is provided with a card slot that matches the movable card block (55).

3. The filter absorber with replaceable filter material according to claim 2, characterized in that: The bottom end of the inner cavity of the installation frame (3) is also provided with a driving member for driving the two connecting blocks (54) to move relative to each other, and the driving member includes a bidirectional screw (51) rotatably connected to the bottom end of the inner cavity of the installation frame (3), and the two sections of the external thread of the bidirectional screw (51) with opposite thread rotation directions are both threadedly sleeved with a screw sleeve (52) fixedly connected to the connecting block (54).

4. The filter absorber with replaceable filter material according to claim 3, characterized in that: One end of the bidirectional screw (51) passes through the installation frame (3) and extends to the outside of the installation frame (3); a rotary handle (56) is fixedly mounted on the end of the bidirectional screw (51) extending to the outside of the installation frame (3).

5. The filter absorber with replaceable filter material according to claim 1, characterized in that: A limit frame (31) is fixedly mounted on the top and bottom of the middle inner cavity of the installation frame (3), a slider is fixedly mounted on the top and bottom of the filter plate (4), and a sliding groove for the slider to slide is provided in the inner cavity of the limit frame (31).

6. The filter absorber with replaceable filter material according to claim 5, characterized in that: The limiting plate (36) is horizontally elastically slidably connected to a squeeze block (37) for limiting the filter plate (4) on one side close to the limiting frame (31), and a connecting channel for the squeeze block (37) to pass through is provided through the inner cavity of the limiting frame (31).

7. The filter absorber with replaceable filter material according to claim 1, characterized in that: An inner groove (41) is provided on one side of the filter plate (4) for facilitating its installation and removal.

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