Buckle type bag filter

Abstract

The utility model relates to the technical field of filters, and discloses a buckle type bag filter which comprises a fixed seat and a plurality of filter bags mounted on the fixed seat, a plurality of mounting ports matched with the upper parts of the filter bags are formed in the fixed seat, a plurality of rotating frames are rotationally connected to the upper surface of the fixed seat, and the rotating frames are arranged on the fixed seat. Mounting openings are formed in the fixed seat, U-shaped feeding openings matched with the mounting openings are formed in the rotating frames, two rotating frames are arranged on the two sides of each mounting opening, clamping units are arranged between the ends of the two symmetrical rotating frames and the upper surface of the fixed seat, the side face of the upper portion of the filter bag is located between the rotating frames and the fixed seat, and the clamping units are used for fixing and extruding the two rotating frames. According to the utility model, the upper part of the filter bag is tightly pressed on the upper surface of the fixed seat by rotating the two rotating frames, and the two rotating frames are extruded and fixed through the clamping units, so that the upper part of the filter bag is uniformly stressed, the damage of the filter bag caused by more filtered matters in the filter bag is prevented, the filter bag is convenient to replace, and the stability of the filter bag after installation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a snap - type bag filter. Background Art

[0002] The bag filter is a new type of filtration system. The liquid flows in from the inlet, and after being filtered by the filter bag, it flows out from the outlet. The impurities are intercepted in the filter bag, and it can be used continuously after replacing the filter bag.

[0003] In order to facilitate the replacement of the filter bag of the bag filter, many improvements have been made to the bag filter in the prior art. For example, the patent with the publication number CN220460164U discloses a snap - type bag filter, which includes a bottom plate. A filter bag is arranged on the lower surface of the bottom plate. A cover plate is fitted and connected inside the bottom plate. A pressing plate is fixedly connected to the lower surface of the cover plate. A clamping plate is fixedly connected to the rear surface of the pressing plate. By installing the cover plate, the clamping plate and the pressing plate, the mouth of the filter bag extends into the inside of the bottom plate, so that the mouth of the filter bag can enter the filter bag placement groove. After the filter bag is placed, the cover plate can be placed on the surface of the bottom plate. The clamping plate can penetrate through the inside of the clamping groove and be connected to the bottom plate. The pressing plate can extend into the inside of the filter bag placement groove and fit with the mouth of the filter bag for extrusion fixation, so that the filter bag is convenient to replace during use.

[0004] The above - mentioned patent has obvious beneficial effects, but there are still the following deficiencies in actual operation:

[0005] In the above - mentioned comparative document, the pressing plate can extend into the inside of the filter bag placement groove and fit with the mouth of the filter bag for extrusion fixation. In actual situations, when there is a large amount of filter material in the filter bag, the filter bag is subjected to a large downward pulling force. And in the above - mentioned comparative document, the contact area between the pressing plate and the filter bag is small. When there is a large amount of filter material in the filter bag, it may cause the position of the filter bag squeezed by the pressing plate to rupture. Also, when the filter bag needs to be replaced in the above - mentioned comparative document, the cover plate needs to be taken out. After the filter bag is replaced, the pressing plate needs to be aligned with the clamping groove for placement and installation, making it rather troublesome to replace the filter bag. Therefore, it is urgent in this field to improve the snap - type bag filter to solve the defects of the prior art. Summary of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a snap - type bag filter, which is convenient for replacing the filter bag and improves the stability of the filter bag after installation.

[0007] To achieve the above object, the present utility model provides the following technical solution: A snap-type bag filter, comprising a fixed seat and a plurality of filter bags mounted on the fixed seat. The fixed seat is provided with a plurality of mounting openings adapted to the upper portions of the filter bags. The upper surface of the fixed seat is rotatably connected with a plurality of rotating frames. The rotating frames are provided with feeding openings in a U shape and adapted to the mounting openings. On both sides of each mounting opening, two rotating frames are provided. A clamping unit is provided between the ends of the two symmetric rotating frames and the upper surface of the fixed seat. The upper side surface of the upper portion of the filter bag is located between the rotating frame and the fixed seat. The clamping unit is used for fixing and squeezing the two rotating frames.

[0008] Preferably, the clamping unit includes fixed blocks fixedly connected to the opposite side surfaces of the two ends of the rotating frame. The upper surface of the fixed seat is fixedly provided with a plurality of threaded columns. The side surfaces of the threaded columns are sleeved with pressing plates adapted to two adjacent fixed blocks. The side surfaces of the threaded columns are threadedly connected with rotating rings for squeezing the pressing plates.

[0009] Preferably, the lower surface of the rotating frame is fixedly connected with a pressing ring in a U shape and with an arc-shaped cross section. The upper surface of the fixed seat is provided with an arc-shaped groove adapted to the pressing ring.

[0010] Preferably, the side surfaces of the threaded columns are sleeved with springs and two cushion rings. The two cushion rings are respectively located on the upper and lower sides of the pressing plate. The spring is located between the upper surface of the fixed seat and the lower surface of one cushion ring.

[0011] Preferably, the lower surface of the pressing plate is fixedly connected with a limiting strip. The upper surface of the fixed block is provided with a limiting groove adapted to the limiting strip.

[0012] Preferably, a U-shaped handle is provided between the opposite side surfaces of the rotating frame. The opposite side walls at both ends of the handle are rotatably connected with sliding blocks. The opposite side surfaces of the rotating frame are respectively provided with sliding grooves adapted to the sliding blocks.

[0013] Preferably, arc-shaped embedding grooves are provided at the opposite ends of the two symmetric rotating frames. Sealing rings are embedded in the embedding grooves.

[0014] In view of the deficiencies of the prior art, the present utility model provides a snap-type bag filter, which overcomes the deficiencies of the prior art. The beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, by rotating the two rotating frames, the upper portion of the filter bag is pressed against the upper surface of the fixed seat, and the two rotating frames are squeezed and fixed by the clamping unit. The upper portion of the filter bag is uniformly stressed, preventing damage to the filter bag caused by too much filter material in the filter bag. At the same time, when the filter bag needs to be replaced, the clamping unit is released, and the two rotating frames are rotated away from the mounting opening again, so that the filter bag can be replaced, which is convenient for replacing the filter bag and improves the stability of the filter bag after installation.

[0016] 2. In the present utility model, after the rotating frame rotates to the position of the mounting opening, at this time, due to the support of the spring, the height of the pressing plate is higher than that of the fixed block. At this time, only the pressing plate needs to be rotated without moving it up and down. At the same time, it is more convenient for the operator to replace the filter bag by cooperating with the limiting strip being clamped in the limiting groove to prevent the pressing plate from rotating when the rotating ring is rotated.

[0017] 3. In the present utility model, when it is necessary to rotate the rotating frame, the position of the handle can be adjusted by moving the handle, and the sliding block slides in the sliding groove. Then, the rotating frame can be rotated by the handle, which is convenient for the operator to rotate the rotating frame.

[0018] Other features and advantages of the present utility model will be described in the subsequent description. And, partly, it will be obvious from the description, or understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide further understanding of the present utility model and constitute a part of the description. They are used together with the embodiments of the present utility model to explain the present utility model, but do not constitute a limitation to the present utility model.

[0020] Figure 1 It is a schematic structural diagram after the filter bag is installed in the present utility model;

[0021] Figure 2 It is a schematic structural diagram of a partial fixed seat and the filter bag in the present utility model;

[0022] Figure 3 It is a schematic structural diagram of two rotating frames in the present utility model;

[0023] Figure 4 It is a schematic structural diagram of a partial cross-section of the fixed seat and a rotating frame in the present utility model

[0024] Figure 5 It is Figure 3 the enlarged structural diagram at A in

[0025] Figure 6 It is Figure 4 the enlarged structural diagram at B in

[0026] In the figure: 1, fixed seat; 2, filter bag; 3, installation opening; 4, rotating frame; 5, feed inlet; 6, clamping unit; 7, fixed block; 8, threaded column; 9, pressing plate; 10, rotating ring; 11, pressing ring; 12, arc groove; 13, spring; 14, gasket ring; 15, limiting strip; 16, limiting groove; 17, handle; 18, sliding block; 19, sliding groove; 20, embedding groove; 21, sealing ring. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Embodiment 1

[0029] Please refer to Figures 1-6 , a snap - type bag filter, comprising a fixed seat 1 and a plurality of filter bags 2 installed on the fixed seat 1. A plurality of installation openings 3 adapted to the upper parts of the filter bags 2 are provided on the fixed seat 1. A plurality of rotating frames 4 are rotatably connected to the upper surface of the fixed seat 1. A feed inlet 5 in a U - shape and adapted to the installation openings 3 is provided in the rotating frames 4. Two rotating frames 4 are provided on both sides of each installation opening 3. A clamping unit 6 is provided between the ends of the two symmetric rotating frames 4 and the upper surface of the fixed seat 1. The upper side of the filter bag 2 is located between the rotating frame 4 and the fixed seat 1. The clamping unit 6 is used to fix and squeeze the two rotating frames 4. The clamping unit 6 includes fixed blocks 7 fixedly connected to the opposite side surfaces of the two ends of the rotating frame 4. A plurality of threaded columns 8 are fixedly installed on the upper surface of the fixed seat 1. A pressing plate 9 adapted to the two adjacent fixed blocks 7 is sleeved on the side surface of the threaded column 8. A rotating ring 10 for squeezing the pressing plate 9 is threadedly connected to the side surface of the threaded column 8.

[0030] Specific implementation method in this embodiment: When installing the filter bag 2 in this embodiment, first rotate the two corresponding rotating frames 4 away from the installation port 3 on the fixed seat 1, pass the filter bag 2 through the position of the installation port 3, and turn up the upper edge of the filter bag 2 to fit on the upper surface of the fixed seat 1. Then, rotate the two rotating frames 4 to the end to merge them again by rotation. The rotating frame 4 presses the upper part of the filter bag 2 on the upper surface of the fixed seat 1. At this time, rotate the pressing plate 9 sleeved on the side of the threaded column 8. The pressing plate 9 rotates to the upper sides of the two fixing blocks 7, and squeeze the pressing plate 9 by tightening the rotating ring 10. The pressing plate 9 presses on the fixing block 7, and the fixing block 7 presses on the rotating frame 4. Thus, the two rotating frames 4 press the upper part of the filter bag 2 on the upper surface of the fixed seat 1. The upper part of the filter bag 2 is uniformly stressed, preventing damage to the filter bag 2 caused by too much filter material in the filter bag 2. At the same time, when the filter bag 2 needs to be replaced, loosen the rotating ring 10, rotate the pressing plate 9, and rotate the two rotating frames 4 away from the installation port 3 again, then the filter bag 2 can be replaced, which is convenient for replacing the filter bag 2 and improves the stability of the filter bag 2 after installation.

[0031] Embodiment Two

[0032] Please refer to Figure 4 and Figure 6 This embodiment includes the above embodiment, and further includes: A pressing ring 11 with a U-shaped cross-section and an arc-shaped cross-section is fixedly connected to the lower surface of the rotating frame 4. An arc-shaped groove 12 adapted to the pressing ring 11 is provided on the upper surface of the fixed seat 1. A spring 13 and two cushion rings 14 are sleeved on the side of the threaded column 8. The two cushion rings 14 are respectively located on the upper and lower sides of the pressing plate 9. The spring 13 is located between the upper surface of the fixed seat 1 and the lower surface of one cushion ring 14. A limiting strip 15 is fixedly connected to the lower surface of the pressing plate 9. A limiting groove 16 adapted to the limiting strip 15 is provided on the upper surface of the fixing block 7.

[0033] Specific implementation method in this embodiment: After the clamping unit 6 presses the rotating frame 4, the arc-shaped pressing ring 11 clamps the upper edge of the filter bag 2 in the arc-shaped groove 12, improving the stability of the filter bag 2 after installation and preventing the filter bag 2 from sliding down. The function of the spring 13 is to support the pressing plate 9. When the rotating frame 4 rotates to the position of the installation port 3, at this time, due to the support of the spring 13, the height of the pressing plate 9 is higher than that of the fixing block 7. At this time, only need to rotate the pressing plate 9 without moving the pressing plate 9 up and down, which is more convenient for the operator to replace the filter bag 2. The function of the cushion ring 14 is to reduce the friction when the rotating ring 10 rotates, and at the same time cooperate with the limiting strip 15 to be clamped in the limiting groove 16 to prevent the pressing plate 9 from rotating when the rotating ring 10 rotates, improving the convenience when replacing the filter bag 2.

[0034] Embodiment Three

[0035] Please refer to Figure 5 and Figure 6, This embodiment includes all the above embodiments, and further includes: A U-shaped handle 17 is provided between the opposite sides of the rotating frame 4. Sliding blocks 18 are rotatably connected to the opposite side walls at both ends of the handle 17. Sliding grooves 19 adapted to the sliding blocks 18 are formed on the opposite sides of the rotating frame 4. Arc-shaped embedding grooves 20 are formed at the opposite ends of the two symmetrical rotating frames 4. A sealing ring 21 is embedded in the embedding groove 20.

[0036] Specific implementation manner in this embodiment: When it is necessary to rotate the rotating frame 4, the position of the handle 17 can be adjusted by moving the handle 17, and the sliding block 18 slides in the sliding groove 19. After the position of the handle 17 is adjusted, the rotating frame 4 is rotated through the handle 17, which is convenient for the operator to rotate the rotating frame 4. When the two rotating frames 4 rotate to the ends abutting against each other, the sealing ring 21 is squeezed. After the clamping unit 6 clamps the rotating frame 4, the lower side of the rotating frame 4 closely adheres to the upper flanging position of the filter bag 2, and cooperates with the pressing ring 11 and the arc-shaped groove 12. At the same time, the handle 17 moves to one side of the rotating frame 4, and the entire installation port 3 is in a sealed state. The fixed seat 1 is connected to the filtering device and is in a sealed state with the rotating frame 4, preventing the fluid from flowing out through the gap of the rotating frame 4 when passing through the feed port 5.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A snap-on bag filter, comprising a fixing seat (1) and a plurality of filter bags (2) mounted on the fixing seat (1), characterized in that: The fixing seat (1) is provided with a plurality of mounting openings (3) adapted to the upper part of the filter bag (2); the upper surface of the fixing seat (1) is rotatably connected to a plurality of rotating frames (4); a U-shaped feed opening (5) adapted to the mounting opening (3) is provided in the rotating frame (4); two rotating frames (4) are provided on both sides of each mounting opening (3); a clamping unit (6) is provided between the ends of the two symmetrical rotating frames (4) and the upper surface of the fixing seat (1); the upper side surface of the filter bag (2) is located between the rotating frame (4) and the fixing seat (1); and the clamping unit (6) is used to fix and squeeze the two rotating frames (4).

2. A snap-on bag filter according to claim 1, characterized in that: The clamping unit (6) comprises a fixing block (7) fixedly connected to the opposite sides of the two ends of the rotating frame (4); a plurality of threaded columns (8) are fixedly mounted on the upper surface of the fixing seat (1); a clamping plate (9) adapted to two adjacent fixing blocks (7) is sleeved on the side of the threaded column (8); and a rotating ring (10) for pressing the clamping plate (9) is threadedly connected to the side of the threaded column (8).

3. A snap-on bag filter according to claim 1, characterized in that: A U-shaped clamping ring (11) with an arc-shaped cross section is fixedly connected to the lower surface of the rotating frame (4), and an arc-shaped groove (12) adapted to the clamping ring (11) is provided on the upper surface of the fixing seat (1).

4. A snap-on bag filter according to claim 2, characterized in that: The side of the threaded column (8) is sleeved with a spring (13) and two gaskets (14), the two gaskets (14) are respectively located on the upper and lower sides of the clamping plate (9), and the spring (13) is located on the upper surface of the fixing seat (1) and the lower surface of a gasket (14).

5. A snap-on bag filter according to claim 2, characterized in that: The lower surface of the clamping plate (9) is fixedly connected to a limiting strip (15), and the upper surface of the fixing block (7) is provided with a limiting groove (16) adapted to the limiting strip (15).

6. A snap-on bag filter according to claim 1, characterized in that: A U-shaped handle (17) is provided between opposite sides of the rotating frame (4); opposite side walls at both ends of the handle (17) are rotatably connected to sliding blocks (18); and opposite sides of the rotating frame (4) are provided with sliding grooves (19) adapted to the sliding blocks (18).

7. A snap-on bag filter according to claim 1, characterized in that: The two symmetrical rotating frames (4) are each provided with an arc-shaped embedding groove (20) at the facing ends thereof, and a sealing ring (21) is embedded in the embedding groove (20).

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