Plate frame type air filter

Abstract

The utility model relates to the technical field of air filters, and discloses a plate frame type air filter which comprises an upper galvanized iron net, the upper galvanized iron net is connected with a lower galvanized iron net through a fixing assembly, the two sides of the outer wall of the lower galvanized iron net are fixedly connected with fixing cylinders, and the inner walls of the fixing cylinders are both slidably connected with moving plates. Buttons are fixedly connected to the inner walls of the moving plates, second springs are arranged between the moving plates and the fixing cylinders, and clamping assemblies are arranged on the inner walls of the upper galvanized iron net and the inner walls of the fixing blocks. According to the plate and frame type air filter, the inserting block is pressed into the fixing block through the button, the moving plate is sprung through the second spring, the moving plate drives the button to reset, when the fixing block is inserted into the lower galvanized iron net, the first spring sprungs the sliding plate, the sliding plate drives the inserting block to be inserted into the lower galvanized iron net, and therefore the plate and frame type air filter is disassembled and assembled. The filter screen is convenient to clean and maintain, and the service life of the filter is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to a plate-frame air filter. Background Art

[0002] Before filling the filter material of the plate and frame air filter, first stick a layer of galvanized iron mesh (or stainless steel mesh) on the air outlet surface of the filter material. After filling the filter material, cover it with another layer of galvanized iron mesh (or stainless steel mesh). These two layers of iron mesh can not only protect the filter material from being blown apart, but are generally used in the coarse and medium efficiency filtration system of air conditioners to extend the service life of bag and HFPA filters and coarse filters for factory exhaust gas and processing dust collection.

[0003] After searching, a plate-and-frame air filter with announcement number CN219647012U includes a first galvanized iron mesh and a second galvanized iron mesh, wherein the outer wall of the first galvanized iron mesh is fixedly connected to a fixed frame, and the fixed frames are provided with a plurality of fixed frames, and the inner walls of the plurality of fixed frames are movably connected to the limit blocks through connecting pieces. For the plate-and-frame air filter, when the knob is pressed downward, the knob pushes the guide rod downward, and the guide rod pushes the pressure plate of the outer wall to squeeze the reset spring to produce displacement, causing the limit block at the end of the guide rod to protrude out of the limit groove, and then the knob is turned, and the knob rotates the guide rod, and during the rotation of the guide rod, the limit block at the end will gradually match the cross section of the through hole, and then the knob is released, and the reset spring rebounds to move the pressure plate and the guide rod upward, and the guide rod will move the limit block upward from the through hole until the limit block and the guide rod are completely separated from the inside of the second galvanized iron mesh;

[0004] Based on the above patent, the existing plate filters on the market mentioned in its background technology need to use two galvanized iron meshes to clamp the filter material between them during use, and use bolts and nuts to tighten the four corners of the two iron meshes. The threads between the bolts and the nuts are tightened to gradually reduce the gap in the iron mesh. However, this fastening method makes the operator's operating steps cumbersome and inconvenient to disassemble. In response to this technical problem, the present application proposes a plate and frame air filter. Utility Model Content

[0005] In order to solve the problem in the prior art that during use, the filter material needs to be clamped between two galvanized iron meshes, and bolts and nuts are used to tighten the two iron meshes at the four corners. This fastening method makes the operator's operation steps cumbersome and inconvenient to disassemble. The present application provides a plate and frame air filter, which presses the plug block into the inside of the fixed block through a button, and then the second spring bounces the moving plate, and the moving plate drives the button to reset. When the fixed block is inserted into the lower galvanized iron mesh, the first spring bounces the slide plate, and the slide plate drives the plug block to be inserted into the inside of the lower galvanized iron mesh, thereby disassembling and installing the plate and frame air filter, facilitating the convenient cleaning and maintenance of the filter mesh and extending the service life of the filter.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A plate-and-frame air filter comprises an upper galvanized iron mesh, which is connected to a lower galvanized iron mesh via a fixing assembly, fixed cylinders are fixedly connected to the outer walls of the lower galvanized iron mesh on both sides, movable plates are slidably connected to the inner walls of the movable plates, buttons are fixedly connected to the inner walls of the movable plates, a second spring is arranged between the movable plate and the fixed cylinder, clamping assemblies are arranged on the inner walls of the upper galvanized iron mesh and the fixed block, and a sealing assembly is arranged on the inner wall of the upper galvanized iron mesh.

[0008] As a further improvement of the present invention, the fixing assembly includes fixing blocks fixedly connected on both sides of the bottom end of the upper galvanized iron mesh, the inner walls of the fixing blocks are slidably connected with slides, the opposite ends of the slides are fixedly connected with plug blocks, a first spring is arranged between the fixing blocks and the slides, and the outer walls of the plug blocks are slidably connected to the inner walls of the lower galvanized iron mesh.

[0009] As a further improvement of the utility model, the clamping assembly includes a connecting tube fixedly connected to the upper galvanized iron mesh and the inner wall of the fixed block on both sides, the inner walls of the plurality of connecting tubes are slidably connected to a limiting plate, the opposite ends of the limiting plates are fixedly connected to a fixing column, the opposite ends of the fixing columns are fixedly connected to a clamping plate, and a third spring is arranged between the limiting plate and the connecting tube.

[0010] As a further improvement of the utility model, the sealing assembly includes a slider slidably connected to the inner wall of the galvanized iron mesh, the front end of the slider is fixedly connected to a screw, the outer wall of the screw is threadedly connected to a knob, and the front end of the fixed block is fixedly connected to a mounting plate.

[0011] As a further improvement of the present invention, one end of the second spring is connected to the movable plate, and the other end of the second spring is connected to the inner wall of the fixed cylinder.

[0012] As a further improvement of the present invention, one end of the first spring is connected to the slide plate, and the other end of the first spring is connected to the inner wall of the fixing block.

[0013] As a further improvement of the present utility model, one end of the third spring is connected to the limiting plate, and the other end of the third spring is connected to the inner wall of the connecting tube.

[0014] As a further improvement of the utility model, the inner wall of the mounting plate is provided with an oblique groove.

[0015] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0016] 1. In the utility model, the insert block is pressed into the interior of the fixed block by a button, and then the movable plate is elastically moved by the second spring, and the movable plate drives the button to reset. When the fixed block is inserted into the lower galvanized iron mesh, the first spring elastically moves the slide plate, and the slide plate drives the insert block to be inserted into the interior of the lower galvanized iron mesh, thereby disassembling and installing the plate and frame air filter, making it easy to clean and maintain the filter screen and extend the service life of the filter.

[0017] 2. In the utility model, the slider is driven to slide inside the upper galvanized iron mesh by pulling the screw rod. When the screw rod moves, the inclined groove inside the mounting plate becomes tighter and tighter. When the sliding is tightest, the knob is turned, and the knob is rotated on the screw rod. When it is rotated to a suitable position, it is fixed, thereby sealing the joint to prevent air leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an isometric view of a plate-and-frame air filter proposed by the utility model;

[0019] Figure 2 This is a diagram showing the internal structure of an upper galvanized iron mesh of a plate-frame air filter proposed by the utility model;

[0020] Figure 3 for Figure 2 A magnified image;

[0021] Figure 4 This is a cross-sectional view of an upper galvanized iron mesh of a plate-frame air filter proposed by the utility model;

[0022] Figure 5 A cross-sectional view of a connecting tube of a plate-frame air filter proposed by the utility model;

[0023] Figure 6 A cross-sectional view of a fixing block of a plate-frame air filter proposed by the utility model;

[0024] Figure 7 This is a diagram showing the internal structure of the lower galvanized iron mesh of a plate-frame air filter proposed by the utility model;

[0025] Figure 8 The utility model is a cross-sectional view of a fixing cylinder of a plate-frame air filter.

[0026] Legend:

[0027] 1. Upper galvanized iron mesh; 2. Fixed block; 3. Slide plate; 4. Insert block; 5. First spring; 6. Lower galvanized iron mesh; 7. Fixed cylinder; 8. Moving plate; 9. Button; 10. Second spring; 11. Connecting cylinder; 12. Limiting plate; 13. Fixed column; 14. Third spring; 15. Clamp; 16. Mounting plate; 17. Slider; 18. Screw; 19. Knob. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0032] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] Embodiment 1: A plate-and-frame air filter comprises an upper galvanized iron mesh 1, which is connected to a lower galvanized iron mesh 6, fixed cylinders 7 are fixedly connected to the outer walls of the lower galvanized iron mesh 6 on both sides, movable plates 8 are slidably connected to the inner walls of the fixed cylinders 7, buttons 9 are fixedly connected to the inner walls of the movable plates 8, a second spring 10 is arranged between the movable plate 8 and the fixed cylinder 7, clamping assemblies are arranged on the inner walls of the upper galvanized iron mesh 1 and the fixed block 2, a sealing assembly is arranged on the inner wall of the upper galvanized iron mesh 1, wherein fixed blocks 2 are fixedly connected on both sides of the bottom end of the upper galvanized iron mesh 1, slide plates 3 are slidably connected to the inner walls of the fixed blocks 2, plug blocks 4 are fixedly connected to the opposite ends of the slide blocks 3, a first spring 5 is arranged between the fixed block 2 and the slide plate 3, and the outer walls of the plug blocks 4 are slidably connected to the inner walls of the lower galvanized iron mesh 6.

[0035] Specifically, pressing the button 9 presses the plug block 4 into the interior of the fixed block 2 to release the fixation. When installation is required, the button 9 is released. At this time, the second spring 10 will bounce the movable plate 8. When the movable plate 8 is bounced, the button 9 is driven to reset. When the fixed block 2 is inserted into the lower galvanized iron mesh 6, the first spring 5 will bounce the slide plate 3. When the slide plate 3 is bounced, the plug block 4 is inserted into the interior of the lower galvanized iron mesh 6 for fixation. In this way, the plate and frame air filter can be disassembled and installed, which is convenient for cleaning and maintenance of the filter and prolonging the service life of the filter.

[0036] Among them, a slider 17 is slidably connected to the inner wall of the upper galvanized iron mesh 1, the front end of the slider 17 is fixedly connected with a screw 18, the outer wall of the screw 18 is threadedly connected with a knob 19, the front end of the fixed block 2 is fixedly connected with a mounting plate 16, one end of the second spring 10 is connected to the movable plate 8, the other end of the second spring 10 is connected to the inner wall of the fixed cylinder 7, one end of the first spring 5 is connected to the slide plate 3, the other end of the first spring 5 is connected to the inner wall of the fixed block 2, one end of the third spring 14 is connected to the limit plate 12, and the other end of the third spring 14 is connected to the inner wall of the connecting cylinder 11.

[0037] Specifically, when the plate-and-frame air filter is installed, the screw 18 is pulled to drive the slider 17 to slide inside the upper galvanized iron mesh 1. When the screw 18 moves, the inclined groove inside the mounting plate 16 becomes tighter and tighter. When the sliding is tightest, the knob 19 is turned, and the knob 19 is rotated on the screw 18. When it is rotated to a suitable position, it is fixed, thereby sealing the joint to prevent air leakage.

[0038] Embodiment 2: As one of the optimized structural designs of Embodiment 1, Figure 4 - Figure 5 As shown, there are connecting tubes 11 fixedly connected on both sides of the inner walls of the upper galvanized iron mesh 1 and the fixed block 2, the inner walls of multiple connecting tubes 11 are slidably connected with limit plates 12, the opposite ends of the limit plates 12 are fixedly connected with fixed columns 13, the opposite ends of the fixed columns 13 are fixedly connected with clamping plates 15, a third spring 14 is arranged between the limit plates 12 and the connecting tubes 11, and the inner wall of the mounting plate 16 is arranged with an inclined groove.

[0039] Specifically, when fixing the filter, the clamping plate 15 is pushed inward, and then the filter is placed between the clamping plates 15. When the clamping plates 15 are released, the third spring 14 will bounce the limit plate 12. When the limit plate 12 is bounced, it drives the fixing column 13 to move. When the fixing column 13 moves, it drives the clamping plate 15 to fix the filter, thereby ensuring the filtering effect and the stability of the filter.

[0040] Working principle: when disassembly is required, the button 9 is pressed to press the plug block 4 into the inside of the fixed block 2 to release the fixation; when installation is required, the button 9 is released and the second spring 10 will bounce the movable plate 8, and when the movable plate 8 is bounced, the button 9 is driven to reset; when the fixed block 2 is inserted into the lower galvanized iron mesh 6, the first spring 5 will bounce the slide plate 3, and when the slide plate 3 is bounced, the plug block 4 is driven to be inserted into the inside of the lower galvanized iron mesh 6 for fixation, so that the plate-and-frame air filter can be disassembled and installed, which is convenient for cleaning and maintenance of the filter and prolonging the service life of the filter; when the filter needs to be fixed, the clamping plate 15 is pushed inward and then the filter is placed on the When the clamping plate 15 is loosened, the third spring 14 will bounce the limit plate 12, and when the limit plate 12 is bounced, the fixing column 13 is driven to move, and when the fixing column 13 moves, the clamping plate 15 is driven to fix the filter screen, thereby ensuring the filtering effect and the stability of the filter. When the plate and frame air filter is installed, the screw 18 is pulled to drive the slider 17 to slide inside the upper galvanized iron mesh 1. When the screw 18 moves, the inclined groove inside the mounting plate 16 will slide tighter and tighter. When the sliding is tightest, the knob 19 is turned, and the knob 19 is rotated on the screw 18. When it is rotated to a suitable position, it is fixed, thereby sealing the joint to prevent air leakage.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plate-and-frame air filter, comprising an upper galvanized iron mesh (1), characterized in that: The upper galvanized iron mesh (1) is connected to the lower galvanized iron mesh (6) via a fixing assembly, and the outer walls of the lower galvanized iron mesh (6) are fixedly connected to fixing cylinders (7), the inner walls of the fixing cylinders (7) are slidably connected to movable plates (8), the inner walls of the movable plates (8) are fixedly connected to buttons (9), a second spring (10) is provided between the movable plates (8) and the fixing cylinder (7), the inner walls of the upper galvanized iron mesh (1) and the fixing blocks (2) are provided with clamping assemblies, and the inner wall of the upper galvanized iron mesh (1) is provided with a sealing assembly.

2. A plate-and-frame air filter according to claim 1, characterized in that: The fixing assembly comprises fixing blocks (2) fixedly connected to both sides of the bottom end of the upper galvanized iron mesh (1), the inner walls of the fixing blocks (2) are slidably connected to slide plates (3), the opposite ends of the slide plates (3) are fixedly connected to plug blocks (4), a first spring (5) is provided between the fixing blocks (2) and the slide plates (3), and the outer walls of the plug blocks (4) are slidably connected to the inner walls of the lower galvanized iron mesh (6).

3. A plate-and-frame air filter according to claim 1, characterized in that: The clamping assembly comprises a connecting tube (11) fixedly connected to both sides of the inner wall of the upper galvanized iron mesh (1) and the fixing block (2); the inner walls of the plurality of connecting tubes (11) are slidably connected to a limiting plate (12); the opposite ends of the limiting plates (12) are fixedly connected to a fixing column (13); the opposite ends of the fixing columns (13) are fixedly connected to a clamping plate (15); and a third spring (14) is provided between the limiting plate (12) and the connecting tube (11).

4. A plate-and-frame air filter according to claim 1, characterized in that: The sealing assembly comprises a slider (17) slidably connected to the inner wall of the upper galvanized iron mesh (1), a screw rod (18) being fixedly connected to the front end of the slider (17), a knob (19) being threadedly connected to the outer wall of the screw rod (18), and a mounting plate (16) being fixedly connected to the front end of the fixed block (2).

5. A plate-and-frame air filter according to claim 1, characterized in that: One end of the second spring (10) is connected to the movable plate (8), and the other end of the second spring (10) is connected to the inner wall of the fixed cylinder (7).

6. A plate-and-frame air filter according to claim 2, characterized in that: One end of the first spring (5) is connected to the slide plate (3), and the other end of the first spring (5) is connected to the inner wall of the fixed block (2).

7. A plate-and-frame air filter according to claim 3, characterized in that: One end of the third spring (14) is connected to the limiting plate (12), and the other end of the third spring (14) is connected to the inner wall of the connecting tube (11).

8. A plate-and-frame air filter according to claim 4, characterized in that: The inner wall of the mounting plate (16) is provided with an oblique groove.

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