Spunlace filter felt with waterproof and antistatic performance

Abstract

The utility model discloses a spunlace filter felt with waterproof anti-static performance, which comprises a processing box, a filter device is arranged in the processing box, the filter device comprises a filter layer, an anti-static layer and a waterproof layer, the anti-static layer is adhered to one side of the filter layer, the waterproof layer is adhered to the other side of the anti-static layer, and quick clamping devices are arranged on two sides of the filter layer. The quick clamping device comprises an unlocking sleeve, a fixed sleeve, a fixed rod, a movable groove, a movable block, a clamping groove and a rotating shaft, the unlocking sleeve is arranged on the outer side of the fixed sleeve in a sleeving mode, the movable groove is formed in the inner side of the unlocking sleeve, the movable block is installed in the movable groove through the rotating shaft, the clamping groove is formed in the side wall of the fixed rod, and a locking mechanism is arranged on the outer side of the fixed sleeve; the locking mechanism comprises a matching plate, a locking sleeve, an ejector rod, a receding hole, a locking rod, locking grooves and a connecting spring, the matching plate is arranged on the outer side of the fixing sleeve in a sleeving mode, the ejector rod is connected to one side of the unlocking sleeve, the receding hole is formed in the matching plate, one end of the locking rod is connected with the outer wall of the unlocking sleeve through the connecting spring, and the multiple locking grooves are formed in the outer side of the fixing sleeve.

Description

Technical Field

[0001] This utility model relates to the field of filter felt technology, and more specifically, it relates to a spunlace filter felt with waterproof and antistatic properties. Background Technology

[0002] In the current technological context, spunlace filter felt with waterproof and antistatic properties is increasingly widely used as a key filter material in the dust removal field. In existing technology CN201720433410.4, the device includes a filter felt surface layer, an antistatic layer bonded to the top of the surface layer, a waterproof layer bonded to the top of the antistatic layer, a protective layer including a protective layer, a water-absorbing layer fixedly connected to the top of the protective layer, and a release paper layer fixedly connected to the top of the water-absorbing layer. This needle-punched filter felt with waterproof and antistatic properties solves the problems of existing filter felts having simple composition, poor waterproof effect, lack of antistatic effect, and inconvenient use. However, this device suffers from the structural problem of inconvenient installation and disassembly of the entire filter felt.

[0003] Firstly, existing filter felts, after being made into filter bags and filter cartridges, are mainly used for filtering and purifying industrial dust. However, the installation and disassembly of these filter materials are usually quite cumbersome. In industrial production, frequent replacement and maintenance are necessary, but the complexity of existing technology requires operators to spend a lot of time and energy to complete this process. This cumbersome operation not only reduces work efficiency but may also cause damage to filter bags or filter cartridges due to improper operation, increasing maintenance costs.

[0004] In addition, although some equipment has adopted some devices to simplify the replacement or maintenance of filter felts, the structure of these devices is often relatively simple and their working mechanism is not perfect. This design deficiency leads to low installation stability, and the installation structure is prone to loosening or even falling off under the influence of gas impact, equipment vibration or other external factors. This unstable state not only affects the filtration effect, but may also cause safety accidents, such as equipment failure. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a spunlace filter felt with waterproof and antistatic properties to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a spunlace filter felt with waterproof and antistatic properties, comprising a treatment box, characterized in that: a filter device is provided in the treatment box, the filter device comprising a filter layer, an antistatic layer, and a waterproof layer, the antistatic layer being bonded to one side of the filter layer, the waterproof layer being bonded to the other side of the antistatic layer, and quick-locking devices being provided on both sides of the filter layer, the quick-locking devices comprising an unlocking sleeve, a fixing sleeve, a fixing rod, a movable groove, a movable block, a slot, and a rotating shaft, the unlocking sleeve being rotatably fitted onto the outside of the fixing sleeve, the fixing sleeve being detachably fitted onto the outside of the fixing rod, and the movable groove being formed in the unlocking sleeve. Inside the sleeve, the movable block is movably installed in the movable groove via a rotating shaft, and one side of the movable block is engaged in the slot. The slot is opened on the side wall of the fixed rod. A locking mechanism is provided on the outside of the fixed sleeve. The locking mechanism includes a mating plate, a locking sleeve, a push rod, a clearance hole, a locking rod, a locking groove, and a connecting spring. The mating plate is rotatably sleeved on the outside of the fixed sleeve, the locking sleeve is sleeved on the outside of the unlocking sleeve, the push rod is connected to one side of the unlocking sleeve, the clearance hole is opened on the mating plate, one end of the locking rod is connected to the outer wall of the unlocking sleeve via the connecting spring, and the other end of the locking rod is inserted into the locking groove. Multiple locking grooves are opened on the outside of the fixed sleeve.

[0009] The present invention is further configured such that a fixing plate is connected to one end of both the fixing rod and the fixing sleeve.

[0010] The present invention is further configured such that a reset spring is provided in the movable groove, one end of the reset spring is connected to the movable block, and the other end of the reset spring is in contact with the inner wall of the movable groove.

[0011] The present invention is further provided with a threaded sleeve on the outside of the fixed sleeve. The threaded sleeve is detachably fitted onto the outside of the threaded sleeve by means of threads, and the threaded sleeve plays a role in limiting the position of the mating plate.

[0012] The present invention is further configured such that a push spring is sleeved on the outer side of the top rod, one end of the push spring is connected to the locking sleeve, and the other end of the push spring is in contact with the mating plate. The push spring simplifies the overall operation.

[0013] The present invention is further provided with anti-slip strips on the outer sides of the unlocking sleeve, locking sleeve and threaded sleeve, which improves the operating feel of the unlocking sleeve, locking sleeve and threaded sleeve.

[0014] The present invention is further configured such that an installation sleeve and a sealing sleeve are respectively provided on both sides of the filter layer, and an installation plate is connected to the outer side of both the installation sleeve and the sealing sleeve.

[0015] The present invention is further configured such that a door is hinged to one side of the processing box, and a connecting pipe is connected to the outside of the processing box.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a spunlace filter felt with waterproof and antistatic properties, which has the following beneficial effects:

[0018] 1. The filtration device, through its innovative multi-layer structural design, effectively solves the problem of insufficient waterproof and antistatic performance of existing filter felts. The ingenious combination of the filter layer, antistatic layer, and waterproof layer significantly enhances the device's waterproof and antistatic capabilities. In particular, the waterproof layer adopts a three-layer structure of carbon fiber protective layer, absorbent cotton layer, and release paper layer, while the antistatic layer features a metal compound conductive fiber layer, a carbon organic composite conductive fiber layer, and an antistatic surface layer. This design fully leverages the advantages of various materials to achieve excellent waterproof and antistatic performance. This design allows the filter felt to maintain good filtration effect in high humidity environments while effectively preventing static electricity accumulation, greatly improving the safety and reliability of the device.

[0019] 2. The quick-release device cleverly solves the problem of cumbersome installation and removal of filter felt in existing technologies. Through the coordinated action of components such as the unlocking sleeve, fixing sleeve, fixing rod, movable groove, movable block, card slot and rotating shaft, the filter felt can be installed and removed quickly. This design not only greatly reduces maintenance time and improves work efficiency, but also reduces the risk of equipment damage caused by improper operation. This quick replacement mechanism makes the equipment perform well in industrial environments that require frequent maintenance, greatly reducing downtime and maintenance costs.

[0020] 3. The innovative design of the locking mechanism effectively solves the problem of unstable installation structure in existing technologies. Through the precise cooperation of components such as the mating plate, locking sleeve, top rod, clearance hole, locking rod, locking groove, and connecting spring, multiple locking of the quick-clamping device is achieved. This design not only enhances the stability of the overall structure, but also effectively prevents loosening and falling off under the influence of external factors such as gas impact or equipment vibration. This multiple locking mechanism ensures the stability of the filter felt under various complex working conditions, greatly improves the reliability and safety of the equipment, and provides a comprehensive and efficient solution for industrial dust removal systems. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a spunlace filter felt with waterproof and antistatic properties according to this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of the removal processing box in this utility model;

[0023] Figure 3 This is a schematic diagram of the filter layer in this utility model;

[0024] Figure 4This is a schematic diagram of the structure of the fast card device and locking mechanism of this utility model;

[0025] Figure 5 This is a cross-sectional structural diagram of the fast card device and locking mechanism of this utility model;

[0026] Figure 6 for Figure 5 A magnified schematic diagram of the partial structure at point A in the middle;

[0027] Figure 7 This is a cross-sectional view of the fast card device and locking mechanism of this utility model from a second angle.

[0028] In the diagram: 1. Processing box; 2. Filter layer; 3. Antistatic layer; 4. Waterproof layer; 5. Unlocking sleeve; 6. Fixing sleeve; 7. Fixing rod; 8. Movable groove; 9. Movable block; 10. Slot; 11. Rotating shaft; 12. Mating plate; 13. Locking sleeve; 14. Top rod; 15. Clearance hole; 16. Locking rod; 17. Locking groove; 18. Connecting spring; 19. Fixing plate; 20. Return spring; 21. Threaded sleeve; 22. Push spring; 23. Anti-slip strip; 24. Mounting sleeve; 25. Sealing sleeve; 26. Mounting plate; 27. Box door; 28. Connecting pipe. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0032] Please see Figures 1-7A spunlace filter felt with waterproof and antistatic properties includes a treatment box 1. The treatment box 1 contains a filter device comprising a filter layer 2, an antistatic layer 3, and a waterproof layer 4. The antistatic layer 3 is bonded to one side of the filter layer 2, and the waterproof layer 4 is bonded to the other side of the antistatic layer 3. Quick-lock devices are provided on both sides of the filter layer 2. Each quick-lock device includes an unlocking sleeve 5, a fixing sleeve 6, a fixing rod 7, a movable groove 8, a movable block 9, a slot 10, and a rotating shaft 11. The unlocking sleeve 5 is rotatably fitted onto the outside of the fixing sleeve 6, and the fixing sleeve 6 is detachably fitted onto the outside of the fixing rod 7. The movable groove 8 is located inside the unlocking sleeve 5, and the movable block 9 is movably mounted on the movable groove 6 via the rotating shaft 11. In the moving groove 8, one side of the movable block 9 is engaged in the slot 10. The slot 10 is opened on the side wall of the fixed rod 7. A locking mechanism is provided on the outside of the fixed sleeve 6. The locking mechanism includes a mating plate 12, a locking sleeve 13, a push rod 14, a clearance hole 15, a locking rod 16, a locking groove 17, and a connecting spring 18. The mating plate 12 is rotatably sleeved on the outside of the fixed sleeve 6. The locking sleeve 13 is sleeved on the outside of the unlocking sleeve 5. The push rod 14 is connected to one side of the unlocking sleeve 5. The clearance hole 15 is opened on the mating plate 12. One end of the locking rod 16 is connected to the outer wall of the unlocking sleeve 5 through the connecting spring 18. The other end of the locking rod 16 is inserted into the locking groove 17. Multiple locking grooves 17 are opened on the outside of the fixed sleeve 6.

[0033] Both the fixing rod 7 and the fixing sleeve 6 have a fixing plate 19 connected to one end.

[0034] A reset spring 20 is provided in the movable groove 8. One end of the reset spring 20 is connected to the movable block 9, and the other end of the reset spring 20 is in contact with the inner wall of the movable groove 8.

[0035] A threaded sleeve 21 is provided on the outside of the fixed sleeve 6. The threaded sleeve 21 is detachably fitted onto the outside of the threaded sleeve 21 by means of threads.

[0036] A push spring 22 is sleeved on the outside of the push rod 14. One end of the push spring 22 is connected to the locking sleeve 13, and the other end of the push spring 22 is in contact with the mating plate 12.

[0037] Anti-slip strips 23 are provided on the outer sides of the unlocking sleeve 5, locking sleeve 13 and threaded sleeve 21.

[0038] In this embodiment, when the entire filter felt needs to be replaced, first open the box door 27, then rotate the mating plate 12, causing the mating plate 12 to move the clearance hole 15. When the clearance hole 15 moves to the position corresponding to the top rod 14, push the locking sleeve 13. The locking sleeve 13 moves the top rod 14, and then the top rod 14 passes through the clearance hole 15. At the same time, the locking sleeve 13 and the mating plate 12 cooperate to compress the push spring 22. When the push spring 22 is compressed to its limit, rotate the unlocking sleeve 5, and then the unlocking sleeve 5 moves the movable groove 8. Then the movable groove 8 moves the movable block 9 through the rotating shaft 11. Then the side wall of the fixed sleeve 6 compresses the movable block 9, and then the movable block 9 gradually slides out of the slot 10 and enters the slot 10. In the movable slot 8, the movable block 9 will press the reset spring 20 connected to one side, and then the movable block 9 will slide completely out of the slot 10 and enter the movable slot 8. Then, the fixing sleeve 6 and the fixing rod 7 will be pulled to both sides respectively, so that the mounting plate 26 can be removed from the inside of the processing box 1. Then, the mounting sleeve 24, the sealing sleeve 25 and the filter felt as a whole will be removed from the processing box 1. Then, the mounting sleeve 24 and the sealing sleeve 25 will be removed from both ends of the filter felt as a whole. Then, the filter felt as a whole will be maintained or replaced. After maintenance or replacement, the mounting sleeve 24 and the sealing sleeve 25 will be installed on both ends of the maintained or replaced filter felt as a whole. Then, the mounting sleeve 24, the sealing sleeve 25 and the filter felt as a whole will be installed on the corresponding inside of the processing box 1. Position the fixing rod 7, then pass it through the processing box 1 and mounting plate 26 from the outside of the processing box 1. Then, fit the fixing sleeve 6 from the inside of the box to the outside of the fixing rod 7, so that the fixing plate 19 connected to one end of the fixing sleeve 6 and the fixing rod 7 fixes the mounting plate 26 and the processing box 1. Then, rotate the unlocking sleeve 5 in the opposite direction, so that the unlocking sleeve 5 drives the movable groove 8 to rotate and reset. Then, the movable groove 8 drives the movable block 9 to rotate and reset through the rotating shaft 11. Then, the movable block 9 will gradually lose the limit of the side wall of the fixing sleeve 6. Then, the reset spring 20 will slowly push the movable block 9 to rotate and reset along the rotating shaft 11. Then, the movable block 9 will gradually move out of the movable groove 8 and enter the slot 10. Then, the slot 10 and the slot 10 will form a locking relationship, thereby making The fixing rod 7 engages with the fixing sleeve 6, and then the locking sleeve 13 is released. The push spring 22 pushes the locking sleeve 13 to reset, and then the locking sleeve 13 drives the top rod 14 to reset. After the push spring 22 is fully reset, the mating plate 12 is rotated again, so that the mating plate 12 drives the clearance hole 15 to a position that does not correspond to the top rod 14. This allows the top rod 14 and the mating plate 12 to cooperate in limiting the locking sleeve 13 and preventing it from sliding. Then, the inner wall of the locking sleeve 13 will again limit the outer end of the locking rod 16 to prevent it from moving. Then, the locking rod 16 will cooperate with the locking groove 17 to limit the unlocking sleeve 5 and prevent it from moving, thus ensuring the stability of the installation structure. Then, the box door 27 can be closed.

[0039] Please see Figures 1-3As a further implementation of the overall equipment: the filter layer 2 is provided with a mounting sleeve 24 and a sealing sleeve 25 on both sides, and a mounting plate 26 is connected to the outside of the mounting sleeve 24 and the sealing sleeve 25.

[0040] A door 27 is hinged to one side of the processing box 1, and a connecting pipe 28 is connected to the outside of the processing box 1.

[0041] More specifically, in practical applications, the waterproof and antistatic spunlace filter felt employs a multi-layer structure to enhance its performance and practicality. The waterproof layer 4's function is primarily achieved through a three-layer structure: a top carbon fiber protective layer, a middle high-efficiency absorbent cotton layer, and a bottom special release paper layer. These three materials are evenly distributed and work together to achieve optimal waterproofing. The antistatic layer 3's performance is achieved through a composite structure comprising three key layers: a metal compound conductive fiber layer, a carbon organic composite conductive fiber layer, and an antistatic surface layer. The metal compound conductive fiber layer is made by chemically reacting innovative cuprous sulfate wire with specific polymer materials, ensuring excellent conductivity and formability. The carbon organic composite conductive fiber layer utilizes carbonized... Combining the advantages of polyacrylonitrile fibers and pitch fibers, the surface layer is woven from a mixture of antistatic agents and textile fibers, further enhancing the antistatic effect. This multi-layered structure is designed based on the corona discharge mechanism. When static electricity accumulates to a certain level, a gentle corona discharge occurs between the conductive fibers, effectively eliminating static electricity without generating sparks, greatly improving safety. Through this innovative multi-layered design, this spunlace filter felt not only overcomes the shortcomings of traditional products in terms of waterproof performance but also significantly improves its antistatic capabilities. This improvement allows the filter felt to maintain high efficiency and stable performance in various complex industrial environments, greatly enhancing its practicality and safety, and providing a comprehensive solution for industrial dust removal.

[0042] In summary, during the use or operation of the entire equipment: when the filter felt needs to be replaced, first open the box door 27, then rotate the mating plate 12, causing the mating plate 12 to move the clearance hole 15. When the clearance hole 15 moves to the position corresponding to the top rod 14, push the locking sleeve 13. The locking sleeve 13 moves the top rod 14, and then the top rod 14 will pass through the clearance hole 15. At the same time, the locking sleeve 13 and the mating plate 12 will cooperate to compress the push spring 22. When the push spring 22 is compressed to its limit, rotate the unlocking sleeve 5, and then the unlocking sleeve 5 will move the movable groove 8. Then the movable groove 8 will move the movable block 9 through the rotating shaft 11. Then the side wall of the fixed sleeve 6 will compress the movable block 9, and then the movable block 9 will gradually move out of the slot 10. The movable block 9 slides out and enters the movable groove 8. Then, the movable block 9 will press the reset spring 20 connected on one side. The movable block 9 will then slide completely out of the slot 10 and enter the movable groove 8. Then, the fixing sleeve 6 and the fixing rod 7 will be pulled to both sides to remove the mounting plate 26 from the inside of the processing box 1. Then, the mounting sleeve 24, the sealing sleeve 25, and the filter felt as a whole will be removed from the processing box 1. Then, the mounting sleeve 24 and the sealing sleeve 25 will be removed from both ends of the filter felt as a whole. Then, the filter felt as a whole will be maintained or replaced. After maintenance or replacement, the mounting sleeve 24 and the sealing sleeve 25 will be installed on both ends of the maintained or replaced filter felt as a whole. Then, the mounting sleeve 24, the sealing sleeve 25, and the filter felt as a whole will be installed into the processing box 1. At the corresponding inner position, the fixing rod 7 passes through the processing box 1 and the mounting plate 26 from the outside of the processing box 1. Then, the fixing sleeve 6 is fitted from the inside of the box to the outside of the fixing rod 7, so that the fixing plate 19 connected to one end of the fixing sleeve 6 and the fixing rod 7 fixes the mounting plate 26 and the processing box 1. Then, the unlocking sleeve 5 is rotated in the opposite direction, so that the unlocking sleeve 5 drives the movable groove 8 to rotate and reset. Then, the movable groove 8 drives the movable block 9 to rotate and reset through the rotating shaft 11. Then, the movable block 9 will gradually lose the limit of the side wall of the fixing sleeve 6. Then, the reset spring 20 will slowly push the movable block 9 to rotate and reset along the rotating shaft 11. Then, the movable block 9 will gradually move out of the movable groove 8 and enter the slot 10. Then, the slot 10 and the slot 10 will form a locking relationship, thus... The fixing rod 7 is engaged with the fixing sleeve 6. Then, the locking sleeve 13 is released, and the push spring 22 pushes the locking sleeve 13 to reset. Then, the locking sleeve 13 drives the top rod 14 to reset. After the push spring 22 is fully reset, the mating plate 12 is rotated again, so that the mating plate 12 drives the clearance hole 15 to a position that does not correspond to the top rod 14. This allows the top rod 14 and the mating plate 12 to cooperate in limiting the locking sleeve 13 and preventing it from sliding. Then, the inner wall of the locking sleeve 13 will again limit the outer end of the locking rod 16 to prevent it from moving. Then, the locking rod 16 will cooperate with the locking groove 17 to limit the unlocking sleeve 5 and prevent it from moving, thus ensuring the stability of the installation structure. Then, the box door 27 can be closed.

[0043] In practical applications, the waterproof and antistatic spunlace filter felt employs a multi-layer structure to enhance its performance and practicality. The waterproof layer 4 is primarily achieved through a three-layer structure: a top carbon fiber protective layer, a middle high-efficiency absorbent cotton layer, and a bottom special release paper layer. These three materials are evenly distributed and work together to achieve optimal waterproofing. The antistatic layer 3 achieves its performance through a composite structure, comprising three key layers: a metal compound conductive fiber layer, a carbon organic composite conductive fiber layer, and an antistatic surface layer. The metal compound conductive fiber layer is made by chemically reacting innovative cuprous sulfate wire with specific polymer materials, ensuring excellent conductivity and formability. The carbon organic composite conductive fiber layer utilizes carbonized polypropylene. Combining the advantages of both acrylic and pitch fibers, the surface layer is woven from a mixture of antistatic agents and textile fibers, further enhancing the antistatic effect. This multi-layered structure is designed based on the corona discharge mechanism. When static electricity accumulates to a certain level, a gentle corona discharge occurs between the conductive fibers, effectively eliminating static electricity without generating sparks, greatly improving safety. Through this innovative multi-layered design, this spunlace filter felt not only overcomes the shortcomings of traditional products in terms of waterproof performance but also significantly improves its antistatic capabilities. This improvement allows the filter felt to maintain high efficiency and stable performance in various complex industrial environments, greatly enhancing its practicality and safety, and providing a comprehensive solution for industrial dust removal.

[0044] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A spunlace filter felt with waterproof and antistatic properties, comprising a treatment box (1), characterized in that: A filtration device is provided in the processing box (1). The filtration device includes a filter layer (2), an antistatic layer (3), and a waterproof layer (4). The antistatic layer (3) is bonded to one side of the filter layer (2), and the waterproof layer (4) is bonded to the other side of the antistatic layer (3). Quick-lock devices are provided on both sides of the filter layer (2). The quick-lock devices include an unlocking sleeve (5), a fixing sleeve (6), a fixing rod (7), a movable groove (8), a movable block (9), a slot (10), and a rotating shaft (11). The unlocking sleeve (5) is fitted on the outside of the fixing sleeve (6), the movable groove (8) is opened on the inside of the unlocking sleeve (5), and the movable block (9) is installed on the movable part of the fixed sleeve (6) through the rotating shaft (11). In the moving groove (8), the slot (10) is opened on the side wall of the fixed rod (7), and a locking mechanism is provided on the outside of the fixed sleeve (6). The locking mechanism includes a mating plate (12), a locking sleeve (13), a top rod (14), a clearance hole (15), a locking rod (16), a locking groove (17), and a connecting spring (18). The mating plate (12) is sleeved on the outside of the fixed sleeve (6), the top rod (14) is connected to one side of the unlocking sleeve (5), the clearance hole (15) is opened on the mating plate (12), one end of the locking rod (16) is connected to the outer wall of the unlocking sleeve (5) through the connecting spring (18), and multiple locking grooves (17) are opened on the outside of the fixed sleeve (6).

2. The spunlace filter felt with waterproof and antistatic properties according to claim 1, characterized in that: A fixing plate (19) is connected to one end of both the fixing rod (7) and the fixing sleeve (6).

3. The spunlace filter felt with waterproof and antistatic properties according to claim 2, characterized in that: The movable groove (8) is provided with a reset spring (20). One end of the reset spring (20) is connected to the movable block (9), and the other end of the reset spring (20) is in contact with the inner wall of the movable groove (8).

4. The spunlace filter felt with waterproof and antistatic properties according to claim 1, characterized in that: The fixed sleeve (6) is provided with a threaded sleeve (21) on the outside, and the threaded sleeve (21) is detachably sleeved on the outside of the threaded sleeve (21) by means of threads.

5. A spunlace filter felt with waterproof and antistatic properties according to claim 4, characterized in that: A push spring (22) is sleeved on the outside of the top rod (14). One end of the push spring (22) is connected to the locking sleeve (13), and the other end of the push spring (22) is in contact with the mating plate (12).

6. A spunlace filter felt with waterproof and antistatic properties according to claim 2, characterized in that: The outer sides of the unlocking sleeve (5), locking sleeve (13) and threaded sleeve (21) are all provided with anti-slip strips (23).

7. A spunlace filter felt with waterproof and antistatic properties according to any one of claims 1-6, characterized in that: The filter layer (2) is provided with an installation sleeve (24) and a sealing sleeve (25) on both sides, and an installation plate (26) is connected to the outside of the installation sleeve (24) and the sealing sleeve (25).

8. A spunlace filter felt with waterproof and antistatic properties according to claim 7, characterized in that: The processing box (1) is hinged to one side with a door (27), and a connecting pipe (28) is connected to the outside of the processing box (1).

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