PTFE filter bag convenient to maintain

Abstract

The invention provides a PTFE filter bag convenient to maintain, and relates to the technical field of filter materials. A clamping mechanism is further included, the clamping mechanism comprises a mounting ring, a plurality of sets of reinforcing plates are mounted on the inner side of the mounting ring, a supporting frame is arranged on the lower end face of the mounting ring, and the supporting frame and the reinforcing plates are used in cooperation with the filter bag; a mounting mechanism is further included and comprises a mounting plate, a mounting groove is formed in the surface of the mounting plate, a two-way threaded sleeve is arranged on the upper end face of the mounting plate, the directions of threads on the upper side and the lower side in the two-way threaded sleeve are opposite, and an unlocking ring is connected to the upper end face of the two-way threaded sleeve. According to the PTFE filter bag convenient to maintain, the clamping mechanism is matched with the mounting mechanism, the complex mounting mode that a traditional filter bag depends on multi-bolt fastening and hoop locking is changed, the functions of rapid clamping and fixing and tool-free unlocking of the filter bag are achieved, and the problem that in the prior art, due to the fact that a filter bag mounting and fixing structure is complex, dismounting and mounting operation is tedious and time-consuming is solved.

Description

Technical Field

[0001] This invention relates to the field of filter material technology, and more specifically, to a PTFE filter bag that is easy to maintain. Background Technology

[0002] In existing technologies, PTFE filter bags, as the core filtration element of baghouse dust collectors, play a crucial role in capturing particulate matter in high-temperature flue gas purification systems such as coal-fired power plants, cement kilns, and steel sintering plants. The quality of their installation and fixing directly affects the sealing performance and filtration efficiency of the dust collection system. However, traditional PTFE filter bag installation and fixing methods generally employ complex mechanical connection structures such as multi-bolt fastening, clamp locking, and flange docking. While this multi-component combination fixing method ensures the strength of the connection and the reliability of the seal, it makes the installation and disassembly of the filter bags extremely complex. The process is complex and cumbersome. When filter bags become damaged, clogged, or have reduced filtration performance due to long-term use and need to be replaced or repaired, operators must first remove all fixing bolts or clamps one by one. Because these fasteners often rust, accumulate dust, or become stuck due to thermal expansion after long-term operation in high-temperature flue gas environments, problems such as bolts being stuck and unable to be turned or clamps being deformed and difficult to remove are frequently encountered during disassembly. It is necessary to use auxiliary methods such as soaking with penetrants, heating with heat guns, or even cutting to forcibly remove the fasteners, which prolongs maintenance downtime and seriously affects the normal operation and production efficiency of the dust removal system.

[0003] The complex installation and fixing structure of traditional PTFE filter bags not only makes the disassembly and assembly process cumbersome and time-consuming, but more seriously, this installation method highly relies on specialized tools and skilled technicians, resulting in high labor and time costs for filter bag maintenance and replacement. Furthermore, it hinders rapid response when emergency filter bag replacement is needed due to sudden malfunctions. Because filter bag installation involves tightening bolts of various sizes, locking clamps, and installing seals, operators must carry a complete set of specialized tools, including wrenches, sockets, screwdrivers, clamp pliers, and torque wrenches. These tools are not only numerous and inconvenient to carry, but the fastener specifications used by different manufacturers and models of dust collectors often differ. Operators need to prepare specialized tools of corresponding specifications for different equipment. If the tool specifications are incompatible or the workmanship is poor, the problem becomes more serious. If equipment is missing or damaged, the entire maintenance operation will come to a standstill, requiring the temporary purchase or allocation of tools before it can continue, significantly delaying the maintenance progress. In actual production, when a dust collector suddenly experiences filter bag damage leading to excessive emissions, or when severe filter bag blockage causes a surge in system resistance affecting production, companies often face the emergency need to replace the filter bags. However, the complex disassembly and assembly process and the high dependence on specialized tools and personnel make the emergency response slow: from discovering the fault, contacting professionals, preparing tools and equipment, arriving at the site, and completing the disassembly and assembly, the entire emergency maintenance process often takes a long time to restore the system to normal operation. Prolonged downtime not only causes production line losses and the risk of exceeding environmental emission standards, but may also lead to a deterioration of the workshop working environment due to the failure of the dust collection system, endangering the health and safety of workers. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, the present invention provides a PTFE filter bag that is easy to maintain, so as to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A maintenance-friendly PTFE filter bag includes a filter bag; it also includes a clamping mechanism, the clamping mechanism including a mounting ring, multiple sets of reinforcing plates mounted on the inner side of the mounting ring, and a support frame provided on the lower end face of the mounting ring, the support frame and reinforcing plates being used in conjunction with the filter bag; it also includes an installation mechanism, the installation mechanism including an installation plate, the surface of the installation plate having an installation groove, the upper end face of the installation plate having a bidirectional threaded sleeve, the upper and lower threads of the bidirectional threaded sleeve having opposite directions, and an unlocking ring connected to the upper end face of the bidirectional threaded sleeve.

[0009] Preferably, the outer wall of the mounting ring is connected to multiple sets of clamping plates, each set of clamping plates is provided with an adjusting rod on its outer wall, the connection between the mounting ring and the clamping plate is provided with an unlocking groove, and the filter bag is sleeved between the mounting ring and the clamping plate and clamped and fixed by the clamping plate.

[0010] Preferably, a pitch ring is sleeved on the outer side of the multiple sets of adjusting rods, and an adjusting ring is connected to the outer side of the pitch ring.

[0011] Preferably, the bidirectional threaded sleeve is internally threaded with a first threaded ring, and a first push ring is connected to the inner side of the first threaded ring. The bidirectional threaded sleeve is internally threaded with a second threaded ring, and a second push ring is connected to the inner side of the second threaded ring. The second threaded ring is located below the first threaded ring.

[0012] Preferably, the inner sidewalls of the first push ring and the second push ring are provided with multiple sets of guide strips, and the lower end face of the first push ring and the upper end face of the second push ring are provided with multiple sets of limiting grooves, with two sets of limiting strips on both sides of each set of limiting grooves.

[0013] Preferably, a fixing ring is fixedly connected to the upper surface of the mounting plate. The inner sidewall of the fixing ring has multiple sets of first inclined grooves and multiple sets of second inclined grooves. The first inclined grooves and the second inclined grooves are arranged in opposite directions and are staggered. The upper end of the fixing ring is provided with multiple sets of first fixing plates, which correspond to the first inclined grooves. The lower end of the fixing ring is provided with multiple sets of second fixing plates, which correspond to the second inclined grooves.

[0014] Preferably, the outer wall of the fixing ring is provided with multiple sets of interval grooves and multiple sets of guide grooves, with one set of interval grooves corresponding to one set of guide grooves. Each set of first inclined grooves and second inclined grooves corresponds to one set of interval grooves and guide grooves, and the guide grooves are adapted to guide strips.

[0015] Preferably, a first slider is slidably connected in the first inclined groove, a first connecting rod is connected to the side wall of the first slider, the first connecting rod is slidably connected to the corresponding interval groove, a first top spring is provided on the upper end surface of the first slider, and the other end of the first top spring is fixedly connected to the lower end surface of the first fixing plate.

[0016] Preferably, a second slider is slidably connected in the second inclined groove, a second connecting rod is connected to the side wall of the second slider, the second connecting rod is slidably connected to the corresponding interval groove, a second top spring is provided on the lower end face of the second slider, the other end of the second top spring is fixedly connected to the upper end face of the second fixing plate, and the inner side walls of the first slider and the second slider are tightly abutting against the outer side wall of the clamping plate.

[0017] Preferably, both the first and second connecting rods have sliding grooves on their side walls, the sliding grooves are adapted to corresponding limiting strips, the limiting strips are embedded in the sliding grooves and slidably connected to them, the first and second connecting rods are slidably connected to the limiting grooves, the first push ring abuts against multiple sets of second connecting rod side walls, and the second push ring abuts against multiple sets of first connecting rod side walls.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides a PTFE filter bag that is easy to maintain and has the following beneficial effects:

[0020] This easy-to-maintain PTFE filter bag, through a clamping mechanism and a variable-pitch ring adjustment system, changes the complex installation method of traditional filter bags that relies on multiple bolts and clamps. It achieves rapid clamping and tool-free unlocking of the filter bag, solving the problem of cumbersome and time-consuming disassembly and assembly operations caused by the complex installation and fixing structure of existing filter bags. The device has multiple sets of clamping plates connected to the outer wall of the mounting ring. Each set of clamping plates has an adjusting rod on its outer wall. A variable-pitch ring is fitted outside the multiple adjusting rods, and an adjusting ring is connected to the outside of the variable-pitch ring. An unlocking groove is provided at the connection between the mounting ring and the clamping plate. The filter bag is fitted between the mounting ring and the clamping plate and clamped and fixed by the clamping plate. When the filter bag needs to be installed, the operator only needs to rotate the adjusting ring by hand. The adjusting ring drives the variable-pitch ring connected to the inner side to rotate synchronously, turning the side of the variable-pitch ring with the smaller diameter to the corresponding position of the adjusting rod. The variable-pitch ring structure applies radial compressive force to the adjusting rod. Under the action of compressive force, the adjusting rod is forced to tilt towards the axis of the mounting ring, which in turn drives the clamping plate connected to its other end to expand outward at a certain angle through leverage. The unlocking groove is designed... The design provides necessary deformation space for the slight tilting movement of the clamping plates, avoiding the problem of the clamping plates and mounting rings being unable to open due to rigid constraints. At this time, the multiple sets of clamping plates are in an outward expanding and released state, no longer exerting clamping force on the filter bag. The operator can easily put the filter bag into the annular space between the mounting ring and the clamping plates from above. The reinforcing plate and support frame on the inner side of the mounting ring provide reliable mechanical support for the inner wall of the filter bag, preventing it from collapsing and deforming due to the internal and external pressure difference during operation. After the filter bag is put in place, the operator only needs to rotate the adjusting ring in the opposite direction to drive the variable pitch ring to rotate in the opposite direction synchronously, so that the end of the variable pitch ring with a smaller diameter moves out of the corresponding position of the adjusting rod. At this time, the variable pitch ring releases the radial squeezing force on the adjusting rod. The adjusting rod resets under its own elasticity or gravity and drives the clamping plates to retract inward. The multiple sets of clamping plates apply radial clamping pressure evenly to the outer wall of the filter bag from all sides to form a reliable annular clamping and fixing. The entire filter bag putting and clamping and fixing process can be completed with only one simple action of rotating the adjusting ring, reducing labor intensity and time costs.

[0021] This easy-to-maintain PTFE filter bag features a bidirectional threaded sleeve driven push-ring linkage inclined slider compression locking mechanism. Combined with the opposing inclined arrangement of the first and second sliders, it achieves bidirectional synchronous pressure locking of the clamping plate, effectively solving the problems of loosening and sealing failure that easily occur with traditional unidirectional filter bag fixing methods when facing alternating airflow impacts. This improves the installation stability and sealing reliability of the filter bag under both forward and reverse airflow conditions. After the filter bag is initially clamped by the clamping mechanism and inserted into the installation slot, the operator needs to rotate the unlocking ring to complete the final pressure locking. The unlocking ring drives the bidirectional threaded sleeve to rotate synchronously. The movement is due to the opposite rotation directions of the upper and lower threads on the inner side of the bidirectional threaded sleeve, forming a differential thread transmission mechanism. The unidirectional rotation of the bidirectional threaded sleeve simultaneously drives the first threaded ring to move upward and the second threaded ring to move downward. That is, the two threaded rings move in opposite directions along the axial direction. As the first threaded ring moves upward, it simultaneously drives the first push ring to move upward. Multiple sets of limiting strips on the lower end face of the first push ring are embedded in the grooves opened on the side walls of multiple sets of second connecting rods, forming a composite kinematic pair of axial limiting and circumferential guiding. Therefore, when the first push ring moves upward, it simultaneously drives multiple sets of second sliders to move upward along the second inclined groove. The second top spring always provides an upward elastic thrust to the second sliders. The spring preload, combined with the guiding effect of the inclined groove, causes the second slider to not only move upward but also slide along the second inclined groove towards the smaller diameter end, i.e., towards the axis of the fixed ring. This inclined movement of the second slider causes its inner wall to apply a continuously increasing radial compressive force to the corresponding outer wall of the clamping plate, achieving a pressure locking effect on the clamping plate from top to bottom. Simultaneously, the second threaded ring moves downward, driving the second push ring to move downward as well. The second push ring, through the engagement transmission relationship between its upper end limit strip and the first connecting rod slide groove, drives multiple sets of first sliders to move downward along the first inclined groove. The first top spring always provides a downward elastic thrust to the first slider. Similarly, while moving downwards, the slider slides along the first inclined groove towards the smaller diameter end, i.e., towards the axis of the fixed ring. The inner wall of the first slider applies a continuously increasing radial extrusion force to the outer wall of the corresponding clamping plate, thereby achieving a pressure locking effect on the clamping plate from below. Through this locking mechanism of bidirectional synchronous extrusion, the first slider and the second slider apply radial pressure to the inside from the upper and lower ends of the clamping plate, respectively. The design of the first slider and the second slider being set in opposite directions enables the locking mechanism to effectively cope with the bidirectional alternating airflow impact load faced by the filter bag in actual operation, and fully ensure the sealing performance and filtration efficiency of the dust removal system during long-term operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a PTFE filter bag that is easy to maintain according to the present invention;

[0023] Figure 2 In this invention Figure 1 A schematic diagram of the cross-sectional structure;

[0024] Figure 3 This is a schematic diagram of the structure of the filter bag and mounting ring in this invention;

[0025] Figure 4 In this invention Figure 3 A schematic diagram of the cross-sectional structure;

[0026] Figure 5 This is a schematic diagram of the clamping plate and support frame in this invention;

[0027] Figure 6 This is a schematic diagram of the mounting plate and the bidirectional threaded sleeve in this invention;

[0028] Figure 7 In this invention Figure 6 A schematic diagram of the cross-sectional structure;

[0029] Figure 8 This is an exploded structural diagram of the first and second threaded rings in this invention;

[0030] Figure 9 This is an exploded view of the fixed ring and the first slider in this invention;

[0031] Figure 10 This is a schematic diagram of the structure of the first threaded ring and the first push ring in this invention;

[0032] Figure 11 This is a schematic diagram of the structure of the first slider and the second slider in this invention;

[0033] Figure 12 This is a cross-sectional view of the mounting ring in this invention.

[0034] In the diagram: 11. Filter bag; 21. Mounting ring; 22. Reinforcing plate; 23. Support frame; 24. Clamping plate; 25. Adjusting rod; 26. Unlocking groove; 27. Variable pitch ring; 28. Adjusting ring; 31. Mounting plate; 32. Mounting groove; 33. Bidirectional threaded sleeve; 34. Unlocking ring; 35. First threaded ring; 36. First push ring; 37. Second threaded ring; 38. Second push ring; 39. Guide bar; 310. Limiting groove; 311. Limiting bar; 312. Fixing ring; 313. First inclined groove; 314. Second inclined groove; 315. First fixing plate; 316. Second fixing plate; 317. Spacing groove; 318. Guide groove; 319. First slider; 320. First connecting rod; 321. First top spring; 322. Second slider; 323. Second connecting rod; 324. Second top spring; 325. Slide groove. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally 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 intended to limit this invention.

[0038] Please see Figures 1-12 A PTFE filter bag that is easy to maintain includes a filter bag 11; it also includes a clamping mechanism, which includes an installation ring 21, multiple sets of reinforcing plates 22 installed on the inner side of the installation ring 21, a support frame 23 provided on the lower end face of the installation ring 21, the support frame 23 and the reinforcing plates 22 are used in conjunction with the filter bag 11, multiple sets of clamping plates 24 are connected to the outer wall of the installation ring 21, each set of clamping plates 24 is provided with an adjusting rod 25 on the outer wall of the outer wall, an unlocking groove 26 is provided at the connection between the installation ring 21 and the clamping plate 24, the filter bag 11 is sleeved between the installation ring 21 and the clamping plate 24 and clamped and fixed by the clamping plate 24, a pitch ring 27 is sleeved on the outer side of the multiple sets of adjusting rods 25, and an adjusting ring 28 is connected to the outer side of the pitch ring 27;

[0039] It also includes an installation mechanism, which includes an installation plate 31. The surface of the installation plate 31 has an installation groove 32. The upper end face of the installation plate 31 has a bidirectional threaded sleeve 33. The upper and lower threads of the bidirectional threaded sleeve 33 have opposite directions. An unlocking ring 34 is connected to the upper end face of the bidirectional threaded sleeve 33. A first threaded ring 35 is threadedly connected inside the bidirectional threaded sleeve 33. A first push ring 36 is connected to the inner side of the first threaded ring 35. A second threaded ring 37 is threadedly connected inside the bidirectional threaded sleeve 33. A second push ring 38 is connected to the inner side of the second threaded ring 37. The second threaded ring 37 is located below the first threaded ring 35. Multiple sets of guide strips 39 are provided on the inner walls of both the first push ring 36 and the second push ring 38. The lower end face of the first push ring 36 is connected to the second push ring 38. Multiple sets of limiting grooves 310 are formed on the upper surface of ring 38. Two sets of limiting strips 311 are provided on both sides of each limiting groove 310. A fixing ring 312 is fixedly connected to the upper surface of mounting plate 31. Multiple sets of first inclined grooves 313 and multiple sets of second inclined grooves 314 are formed on the inner side wall of fixing ring 312. The first inclined grooves 313 and second inclined grooves 314 are arranged in opposite directions and are staggered. Multiple sets of first fixing plates 315 are provided at the upper end of fixing ring 312. The first fixing plates 315 correspond to the first inclined grooves 313. Multiple sets of second fixing plates 316 are provided at the lower end of fixing ring 312. The second fixing plates 316 correspond to the second inclined grooves 314. Multiple sets of interval grooves 317 and multiple sets of guide grooves 318 are formed on the outer side wall of fixing ring 312. A set of interval grooves 317 corresponds to a set of guide grooves 318. Each set of first inclined grooves 313 and second inclined grooves 314 corresponds to a set of interval grooves 317 and guide grooves 318. The guide grooves 318 are adapted to guide strips 39. A first slider 319 is slidably connected in the first inclined groove 313. A first connecting rod 320 is connected to the side wall of the first slider 319. The first connecting rod 320 is slidably connected to the corresponding interval groove 317. A first top spring 321 is provided on the upper end face of the first slider 319. The other end of the first top spring 321 is fixedly connected to the lower end face of the first fixing plate 315. A second slider 322 is slidably connected in the second inclined groove 314. A second connecting rod 323 is connected to the side wall of the second slider 322. The second slider 322 is slidably connected to the corresponding interval groove 317. The lower end face of the second slider 322 is provided with a second top spring 324. The other end of the second top spring 324 is fixedly connected to the upper end face of the second fixing plate 316. The inner side walls of the first slider 319 and the second slider 322 are tightly abutted against the outer side wall of the clamping plate 24. The side walls of the first connecting rod 320 and the second connecting rod 323 are provided with sliding grooves 325. The sliding grooves 325 are adapted to the corresponding limiting strips 311. The limiting strips 311 are embedded in the sliding grooves 325 and slidably connected to them. The first connecting rod 320 and the second connecting rod 323 are slidably connected to the limiting grooves 310. The first push ring 36 abuts against the side walls of multiple sets of second connecting rods 320. The second push ring 38 abuts against the side walls of multiple sets of first connecting rods 323.

[0040] In this invention, the filter bag 11 can be quickly replaced without the need for specialized tools through the cooperation of the clamping mechanism and the installation mechanism. Specifically, when the filter bag 11 needs to be installed, the operator first needs to rotate the adjusting ring 28, so that the adjusting ring 28 drives the inner connected variable pitch ring 27 to rotate synchronously. The smaller side of the variable pitch ring 27 is rotated to the position corresponding to the adjusting rod 25, which squeezes the adjusting rod 25. The adjusting rod 25 is pressed and tilts towards the axis of the installation ring 21, thereby causing the clamping plate 24 connected to its other end to expand outward slightly. The design of the unlocking groove 26 allows the clamping plate 24 to tilt slightly with the adjusting rod 25. At this time, multiple clamping plates 24 will not obstruct the filter bag. After the filter bag 11 is installed, it is placed between the mounting ring 21 and the clamping plate 24. The reinforcing plate 22 and the support frame 23 support the inner side of the filter bag 11. After the filter bag 11 is in place, the operator needs to rotate the adjusting ring 28 in the opposite direction, which will drive the variable pitch ring 27 to rotate in the opposite direction at the same time, so that the smaller diameter end of the variable pitch ring 27 rotates out of the corresponding position of the adjusting rod 25. At this time, the variable pitch ring 27 releases the pressure on the adjusting rod 25, and the adjusting rod 25 drives the clamping plate 24 to reset. The clamping plate 24 clamps and fixes the outer side of the filter bag 11. Then, the clamping mechanism that fixes the filter bag 11 is inserted into the mounting groove 32, so that the bottom of the multiple sets of clamping plates 24 abuts against the upper surface of the mounting plate 31.

[0041] Next, the worker needs to rotate the unlocking ring 34. The unlocking ring 34 will drive the bidirectional threaded sleeve 33 to rotate synchronously. Because the threads on the inner side of the bidirectional threaded sleeve 33 are opposite, the rotation of the bidirectional threaded sleeve 33 will drive the first threaded ring 35 and the second threaded ring 37 to move in opposite directions. When the filter bag 11 needs to be installed, the first threaded ring 35 and the second threaded ring 37 need to be driven to move in opposite directions. The first threaded ring 35 moves upward, and the first threaded ring 35 drives the first push ring 36 to move upward synchronously. This is because the multiple sets of limiting strips 311 set at the lower end of the first push ring 36 are embedded in multiple sets of... The sliding groove 325 on the side wall of the connecting rod 323 allows the first push ring 36 to simultaneously drive multiple sets of second sliders 322 to move upward. Simultaneously, the second top spring 324 provides an upward thrust to the second sliders 322, causing them to slide along the second inclined groove 314 towards the smaller diameter end. This results in the inner wall of the second slider 322 pressing against the outer wall of the corresponding clamping plate 24. During this process, the guide strip 39 on the inner side of the first push ring 36 slides along the corresponding guide groove 318, and the second connecting rod 323 also slides along the corresponding interval groove 317. As the sliding mechanism progresses, the limiting strip 311 slides along the slide groove 325. Similarly, the second threaded ring 37 moves downward, causing the second push ring 38 to move downward simultaneously. The second push ring 38 causes multiple sets of first connecting rods 320 to move downward along with the first slider 319. At the same time, the first top spring 321 continuously provides a downward thrust to the first slider 319. Therefore, the first slider 319 will slide along the first inclined groove 313 towards the end with the smaller diameter of the first inclined groove 313. Consequently, the inner wall of the first slider 319 presses against the outer wall of the corresponding clamping plate 24, thus creating a dynamic interaction between the first slider 319 and the second slider 319. Under the action of 322, the clamping plate 24 further strengthens the clamping and fixing of the filter bag 11, thereby completing the fixing of the filter bag 11; when the filter bag 11 is working, the gas to be filtered passes through the filter bag 11 from bottom to top, the dust is filtered and adheres to the outer wall of the filter bag 11. When the filter bag 11 needs to be cleaned, pulse air will be blown from top to bottom to blow off the dust adhering to the outer side of the filter bag 11. Therefore, the filter bag 11 will be subjected to upward or downward force when it is working. Therefore, the first slider 319 and the second slider 322 are set in opposite directions to make the filter bag 11 more stable when it is working.

[0042] When the filter bag 11 needs to be removed for replacement, the operation is simply reversed. Specifically, the operator first rotates the unlocking ring 34 in the reverse direction. The unlocking ring 34 drives the bidirectional threaded sleeve 33 to rotate in the reverse direction simultaneously. The bidirectional threaded sleeve 33 drives the first threaded ring 35 and the second threaded ring 37 to move towards each other. The first threaded ring 35 drives the first push ring 36 to move downwards simultaneously. The first push ring 36 pushes multiple sets of second connecting rods 323, causing the second slider 322 to slide along the second inclined groove 314 towards the larger diameter end of the second inclined groove 314. The second top spring 324 is further compressed. Simultaneously, the second threaded ring 37 drives the second push ring 38 to move upwards simultaneously. The second push ring 38 pushes multiple sets of first connecting rods 323 to move upwards simultaneously. Rod 320 drives the first slider 319 to slide along the first inclined groove 313 to the larger diameter end of the second inclined groove 314. The first top spring 321 is further compressed. At this time, the first slider 319 and the second slider 322 release the tight compression of the corresponding clamping plate 24. Then, the operator can take the entire clamping mechanism out of the mounting groove 32. After taking it out, rotate the adjusting ring 28. The adjusting ring 28 drives the pitch ring 27 to rotate, so that the smaller diameter end of the pitch ring 27 rotates to the corresponding position of the adjusting rod 25, which compresses the adjusting rod 25. The adjusting rod 25 drives the clamping plate 24 connected below to expand outward, thereby releasing the clamping and fixing of the filter bag 11, and the filter bag 11 can be removed.

[0043] In all the solutions mentioned above, for connections between two components, welding, bolt and nut connection, bolt or screw connection, or other known connection methods can be selected according to the actual situation. They will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention 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 the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0044] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their electrical connection relationships and specific circuit structures will not be elaborated here.

[0045] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be elaborated upon in this invention.

[0046] Of all the solutions mentioned above, those involving the connection between solar panels and batteries can be equipped with essential accessories such as inverters, battery charging controllers, cables, fuses, and brackets. Their control principles and circuit connections are all existing, well-known, and mature technologies, so their electrical connection relationships and specific circuit structures will not be elaborated here.

Claims

1. A maintenance-friendly PTFE filter bag, comprising a filter bag (11); and further comprising a clamping mechanism including a mounting ring (21), characterized in that: Multiple sets of reinforcing plates (22) are installed inside the mounting ring (21). A support frame (23) is provided on the lower end face of the mounting ring (21). The support frame (23) and the reinforcing plates (22) are used in conjunction with the filter bag (11). The mounting ring (21) also includes an installation mechanism, which includes an installation plate (31). An installation groove (32) is provided on the surface of the installation plate (31). A bidirectional threaded sleeve (33) is provided on the upper end face of the installation plate (31). The threads on the upper and lower sides of the bidirectional threaded sleeve (33) are opposite in direction. An unlocking ring (34) is connected to the upper end face of the bidirectional threaded sleeve (33).

2. The PTFE filter bag for easy maintenance according to claim 1, characterized in that: The outer wall of the mounting ring (21) is connected to multiple sets of clamping plates (24). Each set of clamping plates (24) has an adjusting rod (25) on its outer wall. An unlocking groove (26) is provided at the connection between the mounting ring (21) and the clamping plate (24). The filter bag (11) is sleeved between the mounting ring (21) and the clamping plate (24) and is clamped and fixed by the clamping plate (24).

3. The PTFE filter bag for easy maintenance according to claim 2, characterized in that: multiple sets A pitch ring (27) is sleeved on the outside of the adjusting rod (25), and an adjusting ring (28) is connected to the outside of the pitch ring (27).

4. The PTFE filter bag for easy maintenance according to claim 1, characterized in that: The bidirectional threaded sleeve (33) is internally threaded with a first threaded ring (35), and a first push ring (36) is connected to the inner side of the first threaded ring (35). The bidirectional threaded sleeve (33) is internally threaded with a second threaded ring (37), and a second push ring (38) is connected to the inner side of the second threaded ring (37). The second threaded ring (37) is located below the first threaded ring (35).

5. The PTFE filter bag for easy maintenance according to claim 4, characterized in that: The inner walls of the first push ring (36) and the second push ring (38) are provided with multiple sets of guide strips (39). The lower end face of the first push ring (36) and the upper end face of the second push ring (38) are provided with multiple sets of limiting grooves (310). Each set of limiting grooves (310) is provided with two sets of limiting strips (311) on both sides.

6. The PTFE filter bag for easy maintenance according to claim 5, characterized in that: A fixing ring (312) is fixedly connected to the upper end face of the mounting plate (31). The inner side wall of the fixing ring (312) has multiple sets of first inclined grooves (313) and multiple sets of second inclined grooves (314). The first inclined grooves (313) and the second inclined grooves (314) are arranged in opposite directions and are staggered. Multiple sets of first fixing plates (315) are provided at the upper end of the fixing ring (312). The first fixing plates (315) correspond to the first inclined grooves (313). Multiple sets of second fixing plates (316) are provided at the lower end of the fixing ring (312). The second fixing plates (316) correspond to the second inclined grooves (314).

7. The PTFE filter bag for easy maintenance according to claim 6, characterized in that: The outer wall of the fixing ring (312) has multiple sets of spacer grooves (317) and multiple sets of guide grooves (318). Each set of spacer grooves (317) corresponds to a set of guide grooves (318). Each set of first inclined grooves (313) and second inclined grooves (314) corresponds to a set of spacer grooves (317) and guide grooves (318). The guide grooves (318) are adapted to guide strips (39).

8. The PTFE filter bag for easy maintenance according to claim 7, characterized in that: A first slider (319) is slidably connected in the first inclined groove (313). A first connecting rod (320) is connected to the side wall of the first slider (319). The first connecting rod (320) is slidably connected to the corresponding interval groove (317). A first top spring (321) is provided on the upper end surface of the first slider (319). The other end of the first top spring (321) is fixedly connected to the lower end surface of the first fixing plate (315).

9. A PTFE filter bag for easy maintenance according to claim 8, characterized in that: A second slider (322) is slidably connected in the second inclined groove (314). A second connecting rod (323) is connected to the side wall of the second slider (322). The second connecting rod (323) is slidably connected to the corresponding interval groove (317). A second top spring (324) is provided on the lower end face of the second slider (322). The other end of the second top spring (324) is fixedly connected to the upper end face of the second fixing plate (316). The inner side walls of the first slider (319) and the second slider (322) are tightly abutted against the outer side wall of the clamping plate (24).

10. A PTFE filter bag for easy maintenance according to claim 9, characterized in that: The first connecting rod (320) and the second connecting rod (323) are provided with sliding grooves (325) on both sides. The sliding grooves (325) are adapted to the corresponding limiting strips (311). The limiting strips (311) are embedded in the sliding grooves (325) and slidably connected to them. The first connecting rod (320) and the second connecting rod (323) are slidably connected to the limiting grooves (310). The first push ring (36) abuts against the side walls of multiple sets of second connecting rods (320), and the second push ring (38) abuts against the side walls of multiple sets of first connecting rods (323).

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