Medium efficiency filter

Abstract

The utility model discloses a medium-efficiency filter in the technical field of air filters, and aims to solve the problems that frame bodies of medium-efficiency filters in the prior art are generally fixed in size, frame bodies of different sizes cannot be switched according to actual working requirements, and filter bags are generally fixed in the frame bodies, so that the filter bags cannot be switched. Therefore, the filter bag is inconvenient to take out for maintenance work. The mounting frame comprises a plurality of frame bodies, every two adjacent frame bodies are spliced and fixed through a connecting mechanism, grooves are symmetrically formed in the two sides of the inner wall of each frame body, limiting mechanisms are arranged on the sides, on the grooves, of the outer wall of each frame body, and a filter bag is arranged on one side of the outer wall of the mounting frame; the air filter is suitable for air filtration, and two adjacent frame bodies can be spliced, so that a plurality of frame bodies can be spliced according to actual working requirements so as to adapt to different working conditions, and the practicability of the air filter is ensured; and when the filter bag needs to be replaced, the whole frame body can be directly replaced, or the limiting mechanism is detached to replace the mounting frame.

Description

Technical Field

[0001] The utility model relates to a medium-efficiency filter and belongs to the technical field of air filters. Background Art

[0002] Medium efficiency filters belong to the F series of air filters. They are mainly used for intermediate filtration in central air conditioning ventilation systems, and industrial purification in pharmaceuticals, hospitals, electronics, and food. They can also be used as front-end filters for high-efficiency filtration to reduce the load of high-efficiency filtration and extend its service life. Due to the large windward surface, the amount of air dust is large and the wind speed is low, so they are considered to be the best medium efficiency filter structure. Bag-type medium efficiency filters are mainly used for intermediate filtration in air conditioning systems to protect the next level of filters in the system and the system itself. In places where air purification cleanliness is not strictly required, the air treated by the medium efficiency filter can also be directly delivered to users.

[0003] The frame size of existing medium-efficiency filters is usually fixed, and it is impossible to switch frames of different sizes according to actual work needs, which affects the practicality of the device. In addition, the filter bag is usually fixed inside the frame, which makes it inconvenient to take out the filter bag for maintenance, affecting the convenience of the device. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a medium efficiency filter to solve the problem that the frame size of the medium efficiency filter is usually fixed, and frames of different sizes cannot be switched according to actual work requirements, and the filter bag is usually fixed inside the frame, which makes it inconvenient to take out the filter bag for maintenance.

[0005] In order to solve the above technical problems, the utility model is implemented by adopting the following technical solutions:

[0006] The utility model provides a medium efficiency filter, comprising a plurality of frames, two adjacent frames are spliced ​​and fixed by a connecting mechanism, grooves for placing installation frames are symmetrically opened on both sides of the inner wall of the frame, a limiting mechanism is provided on one side of the groove on the outer wall of the frame, and a filter bag is provided on one side of the outer wall of the installation frame;

[0007] The connecting mechanism includes a slide groove opened on one side of the outer wall of the frame, and sliding blocks that are slidably connected are symmetrically provided on both sides of the inner wall of the slide groove. The outer wall of the slider is provided with a limit block on the outer side of the slide groove. The outer wall of the frame is provided with a limit groove matching the limit block on the side away from the slide groove. One end of the slider is provided with a mounting block on the outer side of the slide groove, and the mounting block is detachably connected to the frame.

[0008] Furthermore, the limiting mechanism includes a slide plate slidably arranged on the outer wall of the frame, the slide plate is located at one side of the groove, and the outer wall of the slide plate is threadedly connected with a bolt.

[0009] Furthermore, a push plate is provided on the inner wall of the groove in a sliding connection, and the push plate is elastically connected to the inner wall of the groove via a plurality of springs.

[0010] Furthermore, brackets are symmetrically arranged on one side of the outer wall of the frame, and the filter bag is located inside two of the brackets.

[0011] Furthermore, a same movable plate is provided between the two brackets, the movable plate is located at one side of the filter bag, and a plurality of clamping mechanisms are provided on the outer wall of the movable plate close to the filter bag.

[0012] Furthermore, the clamping mechanism includes a fixing frame arranged on one side of the outer wall of the movable plate, a slidably connected clamping plate is provided on one side of the inner wall of the fixing frame, the clamping plate is elastically connected to the inner wall of the fixing frame through a plurality of return springs, a pull rod is provided at one end of the clamping plate, and one end of the pull rod extends to the outside of the fixing frame and is sleeved with a handle.

[0013] Furthermore, the movable plate is slidably connected to the bracket, an adjusting rod is provided on the inner wall of the bracket at one side of the movable plate, and an output end of the adjusting rod is fixedly connected to the movable plate.

[0014] Furthermore, a friction pad is matchedly provided on the side of the outer wall of the clamping plate away from the return spring.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The medium-efficiency filter, through the cooperation of the slider, the limit block and the limit groove, enables two adjacent frames to be assembled, so that the present application can assemble multiple frames according to actual work needs to adapt to different working conditions, thereby ensuring the practicality of the device; when the filter bag needs to be replaced, the entire frame can be directly replaced, or the limit mechanism can be disassembled and the installation frame can be replaced, thereby ensuring the convenience of the device;

[0017] 2. The medium-efficiency filter, through the cooperation of the clamping plate and the fixing frame, clamps one side of the filter bag, further ensuring the fixing effect of the filter bag, and at the same time plays a positioning effect on the filter bag, preventing the filter bags from excessively expanding with wind pressure and shielding each other, reducing the effective filtration area and efficiency, so that each filter bag does not cover each other, can effectively filter, and ensure the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of a medium efficiency filter provided according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of a front cross-section of a frame provided according to an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the main structure of the installation frame provided according to an embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the top view of the structure of the bracket provided according to the embodiment of the utility model;

[0022] Figure 5 It is a side view structural schematic diagram of a medium efficiency filter provided according to an embodiment of the utility model;

[0023] Figure 6 It is a schematic diagram of the top structure of the fixing frame provided according to the embodiment of the utility model.

[0024] In the figure: 1. frame; 2. mounting frame; 3. groove; 4. filter bag; 5. slide groove; 6. slider; 7. limit block; 8. mounting block; 9. slide plate; 10. bolt; 11. push plate; 12. bracket; 13. movable plate; 14. fixing frame; 15. clamping plate; 16. reset spring; 17. pull rod; 18. handle; 19. adjustment rod; 20. friction pad. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] like Figure 1-4 As shown, the utility model provides a medium-efficiency filter, comprising a plurality of frames 1, wherein two adjacent frames 1 are spliced ​​and fixed by a connecting mechanism, and grooves 3 for placing an installation frame 2 are symmetrically provided on both sides of the inner wall of the frame 1, and a limiting mechanism is provided on one side of the groove 3 on the outer wall of the frame 1, and a filter bag 4 is provided on one side of the outer wall of the installation frame 2; the connecting mechanism comprises a slide groove 5 provided on one side of the outer wall of the frame 1, and sliding blocks 6 for sliding connection are symmetrically provided on both sides of the inner wall of the slide groove 5, and a limiting block 7 is provided on the outer side of the slide groove 5 on the outer wall of the slider 6, and a limiting groove matching the limiting block 7 is provided on the side of the outer wall of the frame 1 away from the slide groove 5, and a mounting block 8 is provided on one end of the slider 6 on the outer side of the slide groove 5, and the mounting block 8 is detachably connected to the frame 1.

[0029] Specifically, when it is necessary to assemble two adjacent frames 1, first align the groove 3 of one of the frames 1 with the position of the limit groove of the other frame 1. At this time, remove the mounting block 8 so that the slider 6 can slide inside the slide groove 5. Manually push the two corresponding sliders 6 away from each other, and the limit block 7 moves with the slider 6 until the limit block 7 moves to the outside of the frame 1. At this time, fit the groove 3 of one of the frames 1 with the position of the limit groove of the other frame 1, and the limit block 7 is located on one side of the limit groove. Then manually push the slider 6 to return to its original position, so that the limit block 7 moves to the inside of the limit groove. Finally, the mounting block 8 is re-fixed on the frame 1 to complete the assembly of the two frames 1. Similarly, multiple frames 1 can be assembled according to actual work needs, so that the present application can assemble multiple frames 1 according to actual work needs to adapt to different working conditions, thereby ensuring the practicability of the device; when the filter bag 4 needs to be removed separately, the limit mechanism can be removed, and then the mounting frame 2 can be taken out of the groove 3 to drive the filter bag 4 to be taken out, and the replacement of the filter bag 4 can be completed. The entire frame 1 can also be directly removed for replacement, thereby ensuring the convenience of the device. Optionally, the mounting block 8 is connected to the frame 1 by a screw thread.

[0030] The utility model cooperates with the slider 6, the limit block 7 and the limit groove so that two adjacent frames 1 can be assembled, so that the present application can assemble multiple frames 1 according to actual work needs to adapt to different working conditions, thereby ensuring the practicality of the device; when the filter bag 4 needs to be replaced, the entire frame 1 can be directly replaced, or the limit mechanism can be disassembled and the installation frame 2 can be replaced, thereby ensuring the convenience of the device.

[0031] In one embodiment, the limiting mechanism includes a slide plate 9 slidably arranged on the outer wall of the frame 1, the slide plate 9 is located on one side of the groove 3, and the outer wall of the slide plate 9 is threadedly connected with a bolt 10. When it is necessary to limit the installation frame 2, after the installation frame 2 is placed inside the groove 3, the sliding slide plate 9 is located on one side of the installation frame 2, thereby blocking and limiting the installation frame 2. After moving to the desired position, the bolt 10 is rotated to limit the position of the slide plate 9 and the frame 1, thereby ensuring the stability of the device; the inner wall of the groove 3 is provided with a push plate 11 that is slidably connected, and the push plate 11 is elastically connected to the inner wall of the groove 3 through multiple springs. When the installation frame 2 is placed inside the groove 3, the push plate 11 cooperates with the spring to ensure that the installation frame 2 is tightly fitted with the slide plate 9, further ensuring the stability of the installation frame 2 when it is fixed.

[0032] like Figure 5-6 As shown, in one embodiment, a bracket 12 is symmetrically provided on one side of the outer wall of the frame 1, the filter bag 4 is located on the inner sides of the two brackets 12, a same movable plate 13 is provided between the two brackets 12, the movable plate 13 is located on one side of the filter bag 4, a plurality of clamping mechanisms are provided on the outer wall of the movable plate 13 close to the filter bag 4, the clamping mechanism comprises a fixing frame 14 provided on one side of the outer wall of the movable plate 13, a slidably connected splint 15 is provided on one side of the inner wall of the fixing frame 14, the splint 15 is elastically connected to the inner wall of the fixing frame 14 through a plurality of reset springs 16, a pull rod 17 is provided at one end of the splint 15, one end of the pull rod 17 extends to the outside of the fixing frame 14 and is sleeved with a handle 18.

[0033] Specifically, the bracket 12 supports and protects the filter bag 4. During operation, the handle 18 is manually pulled to move toward the outside of the fixing frame 14. At this time, the reset spring 16 is compressed, and the handle 18 drives the pull rod 17 and the clamping plate 15 to move, and then the end of the filter bag 4 away from the installation frame 2 is placed on the inner side of the fixing frame 14. At this time, the filter bag 4 is located on one side of the clamping plate 15, and then the handle 18 is released. The reset spring 16 drives the pull rod 17 and the clamping plate 15 to return to their original positions. At this time, the clamping plate 15 cooperates with the fixing frame 14 to clamp one side of the filter bag 4, further ensuring the fixing effect of the filter bag 4, and at the same time The filter bag 4 has a positioning effect, which prevents the filter bag 4 from over-expanding due to wind pressure and shielding each other, thereby reducing the effective filtering area and efficiency, so that each filter bag 4 does not cover each other, can effectively filter, and ensures the practicality of the device; optionally, the outer wall of the clamp 15 away from the reset spring 16 is matched with a friction pad 20 to ensure that the clamp 15 fixes the filter bag 4 to ensure stability. Similarly, the inner wall of the fixing frame 14 is also provided with a friction pad 20; optionally, a through hole is opened on one side of the outer wall of the bracket 12. When multiple frames 1 are spliced ​​together, a connecting rod can be inserted into multiple through holes at the same time, which plays a further positioning role for the multiple frames 1.

[0034] In one embodiment, the movable plate 13 is slidably connected to the bracket 12, and an adjusting rod 19 is provided on the inner wall of the bracket 12 at one side of the movable plate 13. The output end of the adjusting rod 19 is fixedly connected to the movable plate 13. The adjusting rod 19 can be controlled to adjust the position of the movable plate 13, so that the movable plate 13 can be suitable for clamping filter bags 4 of different sizes, thereby ensuring the practicability of the device.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A medium efficiency filter, characterized in that: It comprises a plurality of frames (1), two adjacent frames (1) being spliced ​​and fixed by a connecting mechanism, grooves (3) for placing the installation frame (2) being symmetrically provided on both sides of the inner wall of the frame (1), a limiting mechanism being provided on one side of the groove (3) on the outer wall of the frame (1), and a filter bag (4) being provided on one side of the outer wall of the installation frame (2); The connection mechanism comprises a slide groove (5) provided on one side of the outer wall of the frame (1); sliding blocks (6) are symmetrically provided on both sides of the inner wall of the slide groove (5); a limit block (7) is provided on the outer wall of the slide block (6) outside the slide groove (5); a limit groove matching the limit block (7) is provided on the side of the outer wall of the frame (1) away from the slide groove (5); a mounting block (8) is provided on one end of the slide block (6) outside the slide groove (5); and the mounting block (8) is detachably connected to the frame (1).

2. The medium efficiency filter according to claim 1, characterized in that: The limiting mechanism comprises a slide plate (9) slidably arranged on the outer wall of the frame (1), the slide plate (9) is located on one side of the groove (3), and the outer wall of the slide plate (9) is threadedly connected with a bolt (10).

3. The medium efficiency filter according to claim 1, characterized in that: The inner wall of the groove (3) is provided with a push plate (11) which is slidably connected, and the push plate (11) is elastically connected to the inner wall of the groove (3) via a plurality of springs.

4. The medium efficiency filter according to claim 1, characterized in that: One side of the outer wall of the frame (1) is symmetrically provided with brackets (12), and the filter bag (4) is located inside the two brackets (12).

5. The medium efficiency filter according to claim 4, characterized in that: A same movable plate (13) is provided between the two brackets (12), the movable plate (13) is located on one side of the filter bag (4), and a plurality of clamping mechanisms are provided on the outer wall of the movable plate (13) close to the filter bag (4).

6. The medium efficiency filter according to claim 5, characterized in that: The clamping mechanism comprises a fixing frame (14) arranged on one side of the outer wall of the movable plate (13); a slidably connected clamping plate (15) is provided on one side of the inner wall of the fixing frame (14); the clamping plate (15) is elastically connected to the inner wall of the fixing frame (14) via a plurality of return springs (16); a pull rod (17) is provided at one end of the clamping plate (15); one end of the pull rod (17) extends to the outside of the fixing frame (14) and is sleeved with a handle (18).

7. The medium efficiency filter according to claim 5, characterized in that: The movable plate (13) is slidably connected to the bracket (12); an adjusting rod (19) is provided on the inner wall of the bracket (12) at one side of the movable plate (13); and an output end of the adjusting rod (19) is fixedly connected to the movable plate (13).

8. The medium efficiency filter according to claim 6, characterized in that: A friction pad (20) is matched and arranged on the side of the outer wall of the clamping plate (15) away from the return spring (16).

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