Filter and method for mounting and dismounting the same

Abstract

The application relates to the technical field of filters, and discloses a filter which comprises a filter box, a placing plate and a filter core body, a limiting opening is formed in the top of the filter box, an air inlet pipe is connected to the right side of the filter box, a filter core mounting mechanism is arranged in the filter box, the filter core mounting mechanism comprises a limiting ring located at the top of the placing plate, a disc spring is fixedly arranged in the limiting ring, and a pressing plate is arranged outside the disc spring. According to the application, the limiting ring and the placing plate are quickly adsorbed and connected through magnetic blocks, and the clamping plate is driven by the electric push rod to clamp and fix the limiting ring, so that the complicated mode of completely relying on manual screwing of multiple nuts in the prior art is abandoned. An operator only needs to control the extension and retraction of the electric push rod, and can easily complete the installation and dismounting operation of the filter core, so that time and manpower are greatly saved. Moreover, the mechanical fixing mode can ensure that the fixing force is uniform and consistent every time.

Description

Technical Field

[0001] This invention relates to the field of filter technology, specifically to a filter and its installation and disassembly method. Background Technology

[0002] An air filter is a device that uses porous filter materials to capture dust from a gas-solid two-phase flow and purify the gas. It delivers air with low dust content into the room to ensure the process requirements of clean rooms and the air cleanliness of general air-conditioned rooms. A search revealed a compact, quick-installation and disassembly air filter and its operating method disclosed in Chinese Patent No. CN114130129B. This invention includes a filter housing with a suspended tray inside. A filter element is mounted on the tray. An eccentric tube is installed on one side wall of the filter housing, with a straight pipe at its opening to form an air inlet. An exhaust pipe corresponding to the filter element is located on the top surface of the filter housing, with an exhaust duct forming the middle of the exhaust pipe. However, this device only relies on the lower positioning ring to limit the bottom of the filter element. After the filter element is pushed in horizontally, there is no initial positioning guidance. Manual alignment can easily lead to filter element misalignment. When tightening the wing nuts later, local jamming can easily occur, causing the filter element to be misaligned with the upper positioning ring, resulting in sealing failure and leakage. The six wing nuts rely entirely on manual tightening, and the operating torque cannot be uniformly controlled, which can easily lead to some nuts being under-tightened and others being over-tightened. Moreover, in industrial environments with high vibration, high humidity, and high dust, the wing parts of the wing nuts are prone to dust accumulation and corrosion. With long-term use, there is a risk of them becoming difficult to tighten or loosening and failing. As a result, the overall installation efficiency of the device is low and leakage is likely to occur. Therefore, a filter and its installation and disassembly method are proposed to solve the above-mentioned problems. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a filter and its installation and disassembly method, which offers the advantages of more convenient and efficient installation. It solves the problems of the current device relying solely on the lower positioning ring to limit the bottom of the filter element, lacking initial positioning guidance after the filter element is horizontally pushed in, making manual alignment prone to filter element misalignment, and causing localized jamming when tightening the wing nuts, leading to eccentricity between the filter element and the upper positioning ring, sealing failure, and leakage. Furthermore, the six wing nuts rely entirely on manual tightening, making it difficult to uniformly control the operating torque, resulting in some nuts being under-tightened and others over-tightened. In addition, in industrial environments with high vibration, high humidity, and high dust, the wing parts of the wing nuts are prone to dust accumulation and corrosion, posing a risk of becoming difficult to tighten or loosening with long-term use. Therefore, the overall installation efficiency of this device is low, and leakage is likely to occur.

[0004] Technical solution To achieve the above objectives, the present invention provides the following technical solution: a filter, comprising a filter box, a placement plate and a filter element body, wherein a limiting port is provided on the top of the filter box, an air inlet pipe is connected to the right side of the filter box, and a filter element installation mechanism is provided inside the filter box; The filter element installation mechanism includes a limiting ring located at the top of the placement plate, a disc spring fixedly installed inside the limiting ring, a clamping plate installed outside the disc spring, a rubber airbag installed on the inner wall of the limiting port, an air guiding component installed inside the filter box, and an adjustment component installed inside the filter box.

[0005] Preferably, the filter box includes a U-shaped enclosure, a top plate is installed on the top of the enclosure, a bottom plate is installed on the bottom of the enclosure, and a sealing plate is provided on the front side of the enclosure.

[0006] Preferably, the filter box is provided with an assembly mechanism, which includes slots located at the top and bottom of the enclosure plate. The top plate and the bottom plate are each equipped with a plug that interlocks with the slots on opposite sides. The front side of the enclosure plate has two sliding grooves. The sealing plate is fixedly installed with two sliders that are adapted to the sliding grooves on the side near the enclosure plate. The front side of the top plate and the bottom plate are each equipped with a locking screw.

[0007] Preferably, the ten disc springs are equidistantly distributed inside the limiting ring, and the ten disc springs are respectively connected to the ten abutment plates, with the filter element body located inside the limiting ring.

[0008] Preferably, the air guiding assembly includes a receiving box located at the bottom of the top plate, an electric air pump is installed inside the receiving box, an air guiding pipe connected to the rubber airbag is installed at the output end of the electric air pump, and an exhaust pipe is installed at the bottom of the rubber airbag.

[0009] Preferably, a solenoid valve is installed on the outside of the exhaust pipe, and a magnetic block is installed at the bottom of the limiting ring. The limiting ring and the placement plate are connected to each other by the magnetic block.

[0010] Preferably, the top of the placement plate is equipped with two electric push rods, and the output ends of the two electric push rods are fixedly equipped with clamps, which are located on the left and right sides of the limiting ring, respectively.

[0011] Preferably, the adjusting component includes a sliding opening, two sliding openings are provided on the inner rear wall of the enclosure, two limiting rods are installed on the rear side of the placement plate, a horizontal plate is slidably connected to the rear side of the enclosure, a hydraulic rod is fixedly installed on the rear side of the enclosure, the limiting rod passes through the sliding opening and is connected to the horizontal plate, and a flange is provided on the top of the top plate.

[0012] Preferably, the bottom of the hydraulic rod is connected to the horizontal plate, a protective cover is installed on the rear side of the enclosure plate, the protective cover is sleeved on the outside of the hydraulic rod and the horizontal plate, and the flange is located at the top of the limiting port.

[0013] Preferably, the method for installing and removing the filter includes the following steps: The installation and removal of the filter includes the following steps: Step 1: Assembly of the filter box: Place the enclosure panel in the appropriate position, align the inserts on the top and bottom panels with the slots on the top and bottom of the enclosure panel respectively, and slowly insert them to ensure that they are inserted in place; Step 2: Install the filter element mounting mechanism: Step 201: Attach the limiting ring to the placement plate using the magnetic block, start the electric push rod to make the clamping plate clamp the limiting ring from both sides to ensure its stability, and then put the filter element body into the limiting ring. The disc spring and the clamping plate will automatically adjust to clamp and fix the filter element body. Step 202: Install the air guide assembly to the bottom of the top plate, connect the electric air pump, air guide tube and rubber air bag, and install the exhaust pipe and solenoid valve; Step 203: The controller-driven retraction moves the filter element body upward to the limit port, and the electric air pump is started to inflate the rubber air bag, so that there is no gap between the rubber air bag and the filter element body, ensuring no leakage. Step 204: Align the slider on the sealing plate with the groove on the front side of the enclosure plate, slide the sealing plate to the appropriate position, and then use the locking screw to lock the front sides of the top plate and bottom plate to the sealing plate to complete the assembly.

[0014] Step 3: When the equipment needs to be disassembled, first turn off the electric air pump and hydraulic rod, and disconnect the power supply; Step 301: Open the sealing plate and the solenoid valve outside the exhaust pipe to release the gas in the rubber airbag and cause it to contract; the hydraulic rod drives the placement plate to move downward, so that the filter element body separates from the limiting port; Step 302: Activate the electric push rod to loosen the clamping plate from the limiting ring, disconnect the magnetic block at the bottom of the limiting ring from the placement plate, and carefully remove the filter body and the limiting ring. Step 303: Finally, remove the top plate and bottom plate respectively to complete the disassembly of the filter box.

[0015] Beneficial effects Compared with the prior art, the present invention provides a filter and its installation and disassembly method, which has the following beneficial effects: 1. This filter and its installation / removal method, through the use of structures such as sliding hydraulic rods, provide precise initial positioning guidance for the horizontal insertion of the filter element, effectively avoiding filter element misalignment and ensuring that the filter element accurately enters the working position. After the filter element is installed in place, the unique clamping structure can adaptively adjust the clamping force according to the actual situation of the filter element, keeping the filter element stable throughout the filtration process and preventing it from becoming misaligned with the upper positioning ring due to shaking. Combined with a reliable sealing design, it fundamentally eliminates gas leakage due to seal failure, ensuring the filter's filtration effect and gas purification quality.

[0016] 2. This filter and its installation / disassembly method utilize magnetic blocks to quickly connect the limiting ring to the placement plate, and an electric push rod to clamp and fix the limiting ring, eliminating the cumbersome traditional method of manually tightening multiple nuts. Operators only need to control the extension and retraction of the electric push rod to easily complete the installation and disassembly of the filter element, greatly saving time and manpower. Moreover, this mechanical fixing method ensures uniform and consistent fixing force each time, avoiding the problems of some nuts being under-tightened and others over-tightened when manually tightening wing nuts as seen in the comparative patent, improving the reliability and stability of installation, and significantly enhancing the overall installation and disassembly efficiency.

[0017] 3. The filter and its installation and disassembly method, by adjusting the hydraulic rod in the assembly to move the horizontal plate through extension and retraction, and then by using the limit rod and sliding port to move the placement plate and filter element up and down, realizes flexible adjustment of the filter element position, which can meet the filtration needs under different working conditions. The protective cover plays a good role in protecting key components such as the hydraulic rod and horizontal plate, preventing them from being corroded in high humidity and dusty environments, and ensuring the stability and reliability of the adjustment function. Attached Figure Description

[0018] Figure 1 This is a frontal three-dimensional schematic diagram of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a rear view schematic diagram of the sealing plate of the present invention; Figure 4 This is a schematic cross-sectional view of the limiting ring of the present invention; Figure 5 This is a bottom view of the top plate of the present invention; Figure 6 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 7 This is a rear three-dimensional schematic diagram of the enclosure panel of the present invention; Figure 8 This is a three-dimensional schematic diagram of the limiting ring of the present invention viewed from below; Figure 9This is a partial rear view of the enclosure panel of the present invention.

[0019] In the diagram: 1. Filter box, 101. Enclosure plate, 102. Top plate, 103. Bottom plate, 104. Sealing plate, 2. Placement plate, 3. Filter element body, 4. Limiting port, 5. Air inlet pipe, 6. Filter element installation mechanism, 601. Limiting ring, 602. Disc spring, 603. Clamping plate, 604. Rubber airbag, 605. Air guiding assembly, 6051. Receiving box, 6052. Electric air pump, 6053. Air guiding pipe, 6054. Exhaust pipe, 606. Adjustment assembly, 6061. Sliding port, 6062. Limiting rod, 6063. Horizontal plate, 6064. Hydraulic rod, 7. Assembly mechanism, 701. Slot, 702. Insert block, 703. Slide groove, 704. Slider, 705. Locking screw, 8. Magnetic block, 9. Electric push rod, 10. Clamping plate, 11. Protective cover, 12. Flange. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-9 A filter includes a filter box 1, a placement plate 2 and a filter element body 3. A limiting port 4 is opened on the top of the filter box 1. An air inlet pipe 5 is connected to the right side of the filter box 1. A filter element installation mechanism 6 is provided inside the filter box 1. The filter element installation mechanism 6 includes a limiting ring 601 located at the top of the placement plate 2, a disc spring 602 fixedly installed inside the limiting ring 601, a clamping plate 603 installed outside the disc spring 602, a rubber airbag 604 installed on the inner wall of the limiting port 4, an air guiding component 605 installed inside the filter box 1, and an adjustment component 606 installed inside the filter box 1.

[0022] Specifically, the limiting ring 601 provides a basic installation position for the filter element body 3. The internal disc spring 602 and the clamping plate 603 can adaptively adjust according to the size and shape of the filter element, firmly pressing the filter element body 3 against the limiting ring 601 to prevent the filter element body 3 from shaking during filtration, which could affect the filtration effect or even damage the filter element. At the same time, the elasticity of the disc spring 602 can also play a certain role in buffering and protecting the filter element body 3, reducing the impact of external vibrations on the filter element body 3.

[0023] exist Figure 1 and Figure 2In the filter box 1, there is a U-shaped baffle 101, a top plate 102 is installed on the top of the baffle 101, a bottom plate 103 is installed on the bottom of the baffle 101, and a sealing plate 104 is provided on the front side of the baffle 101.

[0024] Specifically, the filter box 1 is composed of a U-shaped baffle 101, a top plate 102, a bottom plate 103, and a sealing plate 104. Through the insertion of the slot 701 and the insertion block 702, the cooperation of the sliding groove 703 and the sliding block 704, and the locking of the locking screw 705, the overall structure of the filter box 1 is stable and can withstand the forces such as internal airflow pressure, ensuring the stable operation of the filtration process. This modular structure is convenient for installation and disassembly. When a component is damaged, it can be quickly disassembled for replacement or repair, reducing maintenance costs and time.

[0025] exist Figure 2 and Figure 3 In the filter box 1, an assembly mechanism 7 is provided inside. The assembly mechanism 7 includes slots 701 located at the top and bottom of the baffle plate 101. The top plate 102 and the bottom plate 103 are each equipped with a plug block 702 that is inserted into the slot 701. The front side of the baffle plate 101 is provided with two sliding grooves 703. The sealing plate 104 is fixedly installed with two sliders 704 that are adapted to the sliding grooves 703 on the side near the baffle plate 101. The front side of the top plate 102 and the bottom plate 103 are each equipped with a locking screw 705.

[0026] exist Figure 2 and Figure 4 In the middle, ten disc springs 602 are evenly distributed inside the limiting ring 601, and the ten disc springs 602 are respectively connected to ten abutment plates 603. The filter element body 3 is located inside the limiting ring 601.

[0027] exist Figure 3 and Figure 5 In the middle, the air guiding assembly 605 includes a receiving box 6051 located at the bottom of the top plate 102. An electric air pump 6052 is installed inside the receiving box 6051. An air guiding pipe 6053 connected to the rubber airbag 604 is installed at the output end of the electric air pump 6052. An exhaust pipe 6054 is installed at the bottom of the rubber airbag 604.

[0028] Specifically, the rubber airbag 604 on the inner wall of the limiting port 4 expands after being inflated by the electric air pump 6052 in the air guiding assembly 605, which can tightly fit the top of the filter element body 3 to form a good sealing environment, preventing unfiltered gas from leaking from the gap between the top of the filter element body 3 and the limiting port 4, thus ensuring the filtration efficiency and quality. The exhaust pipe 6054 and its external solenoid valve can release the gas in the rubber airbag 604 when it is necessary to replace the filter element body 3 or perform other operations, causing it to contract and making it easy to remove the filter element body 3.

[0029] exist Figure 3 and Figure 5 In the middle, an electromagnetic valve is installed on the outside of the exhaust pipe 6054, and a magnetic block 8 is installed at the bottom of the limiting ring 601. The limiting ring 601 and the placement plate 3 are connected to each other by magnetic attraction through the magnetic block 8.

[0030] exist Figure 2 and Figure 6 In the middle, two electric push rods 9 are installed on the top of the placement plate 3. The output ends of the two electric push rods 9 are fixedly installed with clamping plates 10. The two clamping plates 10 are located on the left and right sides of the limiting ring 601, respectively.

[0031] Specifically, the magnetic block 8 at the bottom of the limiting ring 601 is attracted to the placement plate 2, which increases the stability of the limiting ring on the placement plate 2 and facilitates the installation and removal of the limiting ring 601. The electric push rod 9 and clamping plate 10 at the top of the placement 2 can clamp and fix the limiting ring 601 from the left and right sides, further ensuring the stability of the filter body 3 during the filtration process and preventing it from shifting.

[0032] exist Figure 7 and Figure 8 In the middle, the adjusting component 606 includes a sliding port 6061. Two sliding ports 6061 are opened on the inner rear wall of the enclosure 101. Two limiting rods 6062 are installed on the rear side of the placement plate 3. A horizontal plate 6063 is slidably connected to the rear side of the enclosure 101. A hydraulic rod 6064 is fixedly installed on the rear side of the enclosure 101. The limiting rods 6062 pass through the sliding ports 6061 and are connected to the horizontal plate 6063. A flange 12 is provided on the top of the top plate 102.

[0033] exist Figure 8 and Figure 9 In the middle, the bottom of the hydraulic rod 6064 is connected to the horizontal plate 6063. A protective cover 11 is installed on the rear side of the baffle plate 101. The protective cover 11 is sleeved on the outside of the hydraulic rod 6064 and the horizontal plate 6063. The flange 12 is located at the top of the limit port 4.

[0034] Specifically, the extension and retraction of the hydraulic rod 6064 drives the horizontal plate 6063 to move up and down. Since the limiting rod 6062 passes through the sliding port 6061 and is connected to the horizontal plate 6063, it can drive the placement plate 3 and the filter element body 3 to move up and down, thereby adjusting the position of the filter element body 3 to meet different filtration needs or adapt to different installation environments. The protective cover 11 can protect the components and prevent them from being corroded by external factors such as dust and moisture, thus extending their service life.

[0035] Example 1 This filter was used in the air filtration system of a small factory. Air from the factory workshop enters the filter box 1 through the intake pipe 5, is filtered by the filter element body 3, and then the clean air is discharged from the pipe connected to the flange 12 above the limiting port 4. During installation, following the above installation method, workers quickly completed the assembly of the filter box and the installation and debugging of the filter element mounting mechanism. During use, due to the vibration generated during factory production, the disc spring 602 and the clamping plate 603 effectively buffered the impact of vibration on the filter element body 3, ensuring the stable operation of the filter element body 3. Simultaneously, the sealing effect of the rubber airbag 604 effectively prevented the leakage of unfiltered air, improving filtration efficiency. After a period of use, the filter element body 3 needed to be replaced. Workers successfully disassembled and replaced the filter element and related components according to the disassembly method. The entire process was short and had minimal impact on factory production.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filter, comprising a filter box (1), a placement plate (2), and a filter element body (3), characterized in that: The filter box (1) has a limit port (4) on the top, an air inlet pipe (5) is connected to the right side of the filter box (1), and a filter element installation mechanism (6) is provided inside the filter box (1). The filter element installation mechanism (6) includes a limiting ring (601) located at the top of the placement plate (2), a disc spring (602) is fixedly installed inside the limiting ring (601), a clamping plate (603) is installed outside the disc spring (602), a rubber airbag (604) is installed on the inner wall of the limiting port (4), an air guiding component (605) is provided inside the filter box (1), and an adjustment component (606) is provided inside the filter box (1).

2. The filter according to claim 1, characterized in that: The filter box (1) includes a U-shaped baffle (101), a top plate (102) is installed on the top of the baffle (101), a bottom plate (103) is installed on the bottom of the baffle (101), and a sealing plate (104) is provided on the front side of the baffle (101).

3. A filter according to claim 2, characterized in that: The filter box (1) is provided with an assembly mechanism (7). The assembly mechanism (7) includes slots (701) located at the top and bottom of the baffle (101). The top plate (102) and the bottom plate (103) are each equipped with a plug (702) that is inserted into the slot (701). The front side of the baffle (101) is provided with two sliding grooves (703). The sealing plate (104) is fixedly installed with two sliders (704) that are adapted to the sliding grooves (703) on the side near the baffle (101). The front side of the top plate (102) and the bottom plate (103) are each equipped with a locking screw (705).

4. A filter according to claim 1, characterized in that: Ten disc springs (602) are equidistantly distributed inside the limiting ring (601), and the ten disc springs (602) are respectively connected to the ten abutment plates (603). The filter element body (3) is located inside the limiting ring (601).

5. A filter according to claim 2, characterized in that: The air guiding assembly (605) includes a receiving box (6051) located at the bottom of the top plate (102), an electric air pump (6052) is installed inside the receiving box (6051), an air guiding pipe (6053) connected to the rubber airbag (604) is installed at the output end of the electric air pump (6052), and an exhaust pipe (6054) is installed at the bottom of the rubber airbag (604).

6. A filter according to claim 1, characterized in that: An electromagnetic valve is installed on the outside of the exhaust pipe (6054), and a magnetic block (8) is installed at the bottom of the limiting ring (601). The limiting ring (601) and the placement plate (3) are connected to each other by the magnetic block (8).

7. A filter according to claim 1, characterized in that: The top of the placement plate (3) is equipped with two electric push rods (9), and the output ends of the two electric push rods (9) are fixedly equipped with clamps (10). The two clamps (10) are located on the left and right sides of the limiting ring (601), respectively.

8. A filter according to claim 2, characterized in that: The adjustment assembly (606) includes a sliding opening (6061). The inner rear wall of the enclosure (101) has two sliding openings (6061). The rear side of the placement plate (3) is equipped with two limiting rods (6062). The rear side of the enclosure (101) is slidably connected to a horizontal plate (6063). The rear side of the enclosure (101) is fixedly equipped with a hydraulic rod (6064). The limiting rod (6062) passes through the sliding opening (6061) and is connected to the horizontal plate (6063). The top of the top plate (102) is provided with a flange (12).

9. A filter according to claim 8, characterized in that: The bottom of the hydraulic rod (6064) is connected to the horizontal plate (6063). A protective cover (11) is installed on the rear side of the enclosure plate (101). The protective cover (11) is sleeved on the outside of the hydraulic rod (6064) and the horizontal plate (6063). The flange (12) is located on the top of the limiting port (4).

10. A filter and its installation and disassembly method, comprising the installation and disassembly method of the filter according to any one of claims 1-9, characterized in that: The installation and removal of the filter includes the following steps: Step 1: Assembly of filter box (1): Place the baffle (101) in a suitable position, align the inserts (702) on the top plate (102) and bottom plate (103) with the slots (701) on the top and bottom of the baffle (101) respectively, and slowly insert them to ensure that they are inserted in place; Step 2: Install the filter element mounting mechanism: Step 201: Attach the limiting ring (601) to the placement plate (2) using the magnetic block (8), start the electric push rod (9) to clamp the limiting ring from both sides of the clamping plate (10) to ensure its stability, and then put the filter body (3) into the limiting ring (601). The disc spring (602) and the abutment plate (603) will automatically adjust to abut and fix the filter body (3). Step 202: Install the air guide assembly (605) to the bottom of the top plate (102), connect the electric air pump (6052), air guide pipe (6053) and rubber airbag (604), and install the exhaust pipe (6054) and solenoid valve; Step 203: The retraction of the controller drive (6064) drives the filter body (3) to move upward to the limit port (4), and the electric air pump (6052) is started to inflate the rubber air bag (604) so ​​that there is no gap between the rubber air bag (604) and the filter body (3) to ensure no leakage. Step 204: Align the slider (704) on the sealing plate (104) with the groove (703) on the front side of the enclosure plate (101), slide the sealing plate (104) to the appropriate position, and then use the locking screw (705) to lock the front side of the top plate (102) and the bottom plate (103) with the sealing plate to complete the assembly. Step 3: When the equipment needs to be disassembled, first turn off the electric air pump (6052) and hydraulic rod (6064) and disconnect the power supply; Step 301: Open the solenoid valve outside the sealing plate (104) and the exhaust pipe (6054) to discharge the gas in the rubber air bag (604) and cause it to contract; the hydraulic rod (6064) drives the placement plate (2) to move downward, so that the filter element body (3) separates from the limiting port (4); Step 302: Start the electric push rod (9) to loosen the clamp (10) from the limiting ring (601), disconnect the magnetic block (8) at the bottom of the limiting ring (601) from the placement plate (2), and carefully remove the filter body (3) and the limiting ring (601). Step 303: Finally, remove the top plate (102) and bottom plate (103) respectively to complete the disassembly of the filter box (1).

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