Magnetic drive pump capable of preventing medium particle impurities from entering and using method

Abstract

The invention discloses a magnetic drive pump capable of preventing medium particle impurities from entering and a using method, belongs to the technical field of magnetic drive pumps, and aims to solve the problems that filter screen plate resources are wasted and the utilization rate of a filter screen plate is reduced due to the fact that the filter screen plate cannot manage and control different areas. The magnetic drive pump capable of preventing the medium particle impurities from entering comprises a magnetic drive pump body and a feeding pipe installed at the input end of the magnetic drive pump body, a filter screen plate is installed in the feeding pipe, a rotating shaft is rotatably connected to the interior of the filter screen plate, an impeller is fixedly connected to one end of the rotating shaft, a plugging plate is coaxially fixed to the other end of the rotating shaft, and the plugging plate is fixedly connected to the other end of the magnetic drive pump body. According to the invention, batch use of the filter screen plates is realized by rotating the blocking position of the blocking plate, and when partial areas of the filter screen plates are blocked due to impurity accumulation, the blocking plate can be rotated to switch to an unused area to continue working, so that overall replacement is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic pumps, and in particular to a magnetic pump capable of preventing medium particle impurities from entering and a use method thereof. Background Art

[0002] As a fluid conveying equipment widely used in the industrial field, magnetic pumps play an important role in many working conditions with their unique working principle and advantages. Magnetic pumps mainly use magnetic transmission to achieve contactless power transmission. This method avoids the problem of medium leakage caused by seal wear in traditional mechanical seal pumps. It is particularly suitable for conveying media with special properties such as corrosive, toxic, flammable and explosive, and containing particulate impurities.

[0003] In existing magnetic pump application scenarios, the filter plate in the magnetic pump is generally installed as a single whole. When conveying media containing particulate impurities, after a period of use, the particulate impurities will accumulate on the filter plate in large quantities, causing the filter plate to quickly become clogged. Once the filter plate is clogged, the staff needs to immediately stop the machine and replace it, which is not only cumbersome to operate and increase labor intensity, but also frequently interrupts the production process and reduces production efficiency.

[0004] In addition, when a certain area of ​​the existing filter plate is blocked by impurities during use, it is impossible to effectively isolate and switch the area from other unused areas, and it is impossible to effectively manage and control different areas of the filter plate, resulting in a waste of filter plate resources and reducing the utilization rate of the filter plate.

[0005] In view of the above problems, a magnetic pump and a method of use which can prevent medium particle impurities from entering are proposed. Summary of the invention

[0006] The object of the present invention is to provide a magnetic pump and a method of use that can prevent medium particle impurities from entering. The present invention is used to work, thereby solving the problem that the filter plate in the above background cannot manage and control different areas, resulting in a waste of filter plate resources and reducing the utilization rate of the filter plate.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a magnetic pump capable of preventing medium particle impurities from entering, comprising a magnetic pump body and a feed pipe installed at the input end of the magnetic pump body, a filter plate installed in the feed pipe, a rotating shaft rotatably connected inside the filter plate, an impeller fixedly connected to one end of the rotating shaft, a sealing plate coaxially fixed to the other end of the rotating shaft, and a pressing plate slidably connected inside the sealing plate;

[0008] Also includes:

[0009] A blocking assembly, which facilitates driving the pressing plate to fit against the filter plate for blocking it.

[0010] A limiting assembly, which includes a first limiting member and a second limiting member, and the first limiting member and the second limiting member facilitate restricting the rotation of the blocking plate.

[0011] A driving assembly, which facilitates driving the first limiting member and the second limiting member to move horizontally.

[0012] Further, the blocking assembly includes a cavity opened inside the blocking plate, and a plurality of springs are fixedly connected inside the cavity. Two ends of the plurality of springs are respectively fixedly connected with the inner wall of the blocking plate and the bottom wall of the pressing plate. A convex rod is fixedly connected to the inner wall of the pressing plate, and the convex rod is slidably connected with the blocking plate.

[0013] Further, a ring frame is fixedly connected to the inner wall of the feed pipe, and a resisting rod is fixedly connected to the ring frame. Four resisting rods are arranged in a circumferential distribution, and the surface of the convex rod is provided with a rounded corner.

[0014] Further, two stoppers are fixedly connected to the ring frame, and the two stoppers are symmetrically and staggeredly arranged.

[0015] Further, the first limiting member includes a first chute opened on the inner bottom wall of the feed pipe, a first block-shaped magnet is slidably connected inside the first chute, and a first insertion rod is fixedly connected to the first block-shaped magnet.

[0016] Further, the second limiting member includes a second chute opened on the inner side wall of the feed pipe, a second block-shaped magnet is slidably connected inside the second chute, and a second insertion rod is fixedly connected to the second block-shaped magnet.

[0017] Further, the driving assembly includes a mounting bracket fixedly connected to the side wall of the connecting pipe, an electric push rod is fixedly connected to the mounting bracket, a slider is fixedly connected to the output end of the electric push rod, and a strip-shaped magnet is fixedly connected to the side of the slider.

[0018] Further, the first block-shaped magnet and the second block-shaped magnet are slidably attached to the inner wall of the connecting pipe, the strip-shaped magnet is slidably attached to the outer wall of the connecting pipe, and the first block-shaped magnet and the second block-shaped magnet are magnetically connected to the strip-shaped magnet.

[0019] Further, insertion holes are opened on the surface of the blocking plate, and a clamping connection relationship can be respectively formed between the insertion holes and the first insertion rod and the second insertion rod.

[0020] The present invention also proposes another technical solution: a method for using a magnetic pump that can prevent medium particle impurities from entering, including the following steps:

[0021] S1: Check the state of the blocking plate in the initial position, confirm that it cannot rotate, ensure that the abutment rod and the convex rod are in contact with each other so that the pressing plate is attached to the surface of the unused area of ​​the filter plate, and at the same time confirm whether the block effectively blocks and limits the pressing plate from both ends, and ensure whether the second limiter limits the blocking plate in the initial state;

[0022] S2: After confirming that the area of ​​the filter plate that is not blocked by the compression plate is in an open state, start the magnetic pump, and the medium flows in from the feed pipe, passes through the open area of ​​the filter plate, and enters the magnetic pump body after being filtered by the filter plate, thereby achieving efficient interception and filtration of impurities in the medium and ensuring the normal operation of the magnetic pump;

[0023] S3: When it is observed during use that particulate impurities gradually accumulate on the surface of the filter plate and reach a level that affects the normal passage of the medium, the first plug rod or the second plug rod in the driving component is started to limit or release the blocking plate to meet the limiting requirements of the blocking plate in different states, thereby realizing the limiting and separation of the blocking plate by the limiting component;

[0024] S4: After the restriction is released, as the medium continues to flow in, the impact force acts on the impeller, and the impeller drives the rotating shaft and the blocking plate to rotate, thereby adjusting the blocking position of the blocking plate and the pressing plate, realizing the batch use of the filter plate and improving the utilization rate of the filter plate;

[0025] S5: During the adjustment process, the protruding rod gradually separates from the abutting rod, and the spring drives the protruding rod and the pressing plate to be embedded in the cavity of the sealing plate and separate from the filter plate, ensuring that the impurities accumulated on the surface of the filter plate will not float due to the force and accumulate in the unused area, thereby ensuring the normal use of the filter plate.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention can effectively filter the medium in the area not blocked by the clamping plate through the cooperation of the sealing plate, the clamping plate and the limiting assembly, so as to prevent impurities from entering the magnetic pump body, and realize the batch use of the filter plate by rotating the sealing position of the sealing plate. When a part of the filter plate is blocked due to the accumulation of impurities, the sealing plate can be rotated to switch to the unused area to continue working, thus avoiding the overall replacement, improving the utilization rate of the filter plate and reducing the maintenance cost; the sealing plate can effectively prevent the impurities accumulated on the surface of the filter plate from floating due to the force and polluting the unused area during the rotation and adjustment process, thereby ensuring that the filter plate can maintain a good filtering effect at different stages; the limiting assembly and the driving assembly cooperate with each other, so that the rotation of the sealing plate can be accurately limited at different working stages, so that the sealing plate is in the corresponding position for stable use, thereby ensuring the normal operation of the magnetic pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the overall axial structure of the present invention;

[0030] Figure 3 It is a front view structural schematic diagram of the connecting pipe of the present invention;

[0031] Figure 4 This is a schematic diagram of the axial structure of the connecting pipe of the present invention;

[0032] Figure 5 It is a schematic diagram of the rear view structure of the connecting pipe of the present invention;

[0033] Figure 6 It is a schematic diagram of the connection structure of the blocking plate, the ring frame and the abutment rod;

[0034] Figure 7 It is a schematic diagram of the connection structure of the plugging plate and the pressing plate;

[0035] Figure 8 It is a schematic diagram of the drive component structure;

[0036] Figure 9 It is a schematic diagram of the connection structure of the filter plate, impeller and rotating shaft.

[0037] In the figure: 1. magnetic pump body; 2. feed pipe; 3. filter plate; 4. rotating shaft; 5. impeller; 6. blocking plate; 61. plug hole; 62. cavity; 7. blocking assembly; 71. spring; 72. protruding rod; 73. clamping plate; 8. ring frame; 81. abutment rod; 82. block; 9. first limiting member; 91. first slide groove; 92. first block magnet; 93. first plug rod; 10. second limiting member; 101. second slide groove; 102. second block magnet; 103. second plug rod; 11. driving assembly; 111. mounting frame; 112. electric push rod; 113. slider; 114. strip magnet. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In order to solve the technical problem that the existing magnetic pump filter plate 3 is quickly blocked due to the accumulation of particle impurities after being used once, the staff needs to immediately stop the machine to replace the filter plate 3, thereby reducing the utilization rate of the filter plate 3. Figure 1 - Figure 9As shown, the following preferred technical solutions are provided:

[0040] A magnetic pump that can prevent medium particle impurities from entering, includes a magnetic pump body 1 and a feed pipe 2 installed at the input end of the magnetic pump body 1. The specific structure of the magnetic pump body 1 includes key components such as a pump casing, an inner magnetic rotor, an outer magnetic rotor, and an isolation sleeve. The inner and outer magnetic rotors transmit power through magnetic coupling, and the isolation sleeve isolates the conveying medium from the outside world. Its working principle is to use magnetic transmission to achieve contactless power transmission, avoiding the problem of medium leakage caused by seal wear in traditional mechanical seal pumps. It is suitable for working conditions of conveying special media containing particulate impurities. Since the magnetic pump body 1 belongs to the existing technology in this field and is not a major innovation, it will not be described in detail.

[0041] A filter plate 3 is installed in the feed pipe 2. The filter plate 3 has strength and corrosion resistance. The filter plate 3 is circular in shape, fits the inner wall of the feed pipe 2, is firmly installed and well sealed, and can prevent unfiltered media from passing through the edge of the filter plate 3. The filter plate 3 is rotatably connected to a rotating shaft 4. An impeller 5 is fixedly connected to one end of the rotating shaft 4, and a sealing plate 6 is coaxially fixed to the other end of the rotating shaft 4. The sealing plate 6 is composed of two symmetrical fan-shaped plates. Through the staggered arrangement, the filtration area can be increased during the process. A clamping plate 73 is slidably connected to the sealing plate 6. The shape of the clamping plate 73 is adapted to the cavity 62 in the sealing plate 6 to ensure smooth sliding and good sealing in the sealing plate 6. This design can prevent the impurities blocked on the surface of the filter plate 3 from falling into the unused area of ​​the filter plate 3 when the sealing plate 6 rotates, so as to prevent it from being contaminated and affecting normal use.

[0042] It also includes a sealing component 7, which is convenient for driving the clamping plate 73 to fit the filter plate 3 to seal it. The sealing component 7 includes a cavity 62 opened inside the sealing plate 6, and a plurality of springs 71 are fixedly connected in the cavity 62. The two ends of the plurality of springs 71 are respectively fixedly connected to the inner wall of the sealing plate 6 and the bottom wall of the clamping plate 73. The spring 71 provides sufficient elastic force to make the clamping plate 73 fit tightly against the filter plate 3 to prevent particulate impurities from floating again with the transportation of the medium. The inner wall of the clamping plate 73 is fixedly connected with a protruding rod 72, and the protruding rod 72 is slidably connected to the sealing plate 6.

[0043] Specifically, in the initial state, Figure 3 As shown, the blocking plate 6 is in a horizontal position, at which time the resistance rod 81 and the protruding rod 72 are in contact with each other, and the protruding rod 72 slides downward under the action of the resistance force and stretches the spring 71. The tension of the spring 71 drives the clamping plate 73 to fit tightly against the surface of the unused area of ​​the filter plate 3. At the same time, the block 82 blocks and limits the clamping plate 73 from both ends. In this state, the second plug rod 103 in the second limiting member 10 is embedded in the socket 61 on the surface of the blocking plate 6, forming a limiting effect, thereby preventing the blocking plate 6 from rotating.

[0044] When the magnetic pump starts to work, the medium flows in from the feeding pipe 2. Since the blocking plate 6 is limited and fixed in the initial state, the impeller 5 will not rotate as the medium flows in. At this time, the area of the filter screen plate 3 not blocked by the pressing plate 73 is in an open state, and the medium can smoothly pass through this open area, enter the magnetic pump body 1 after being filtered by the filter screen plate 3, effectively preventing impurities in the medium from entering. As the medium continuously flows, the particulate impurities therein gradually accumulate on the filter screen plate 3. When the impurities accumulate to affect the normal passage of the medium, the restriction of the second limiting member 10 on the blocking plate 6 is released, and the blocking plate 6 can rotate at this time to adjust the position to be blocked, so as to facilitate the reuse of the filter screen plate 3.

[0045] Under the current technical background, the filter screen plate 3 in the magnetic pump is usually installed in the form of a single whole. After a period of use, the particulate impurities carried in the medium will gradually accumulate, resulting in the blockage of the filter screen plate 3. Once this situation occurs, the staff needs to immediately stop the machine and replace the filter screen plate 3, which undoubtedly brings a lot of inconvenience to the work.

[0046] In contrast, the above - adopted design realizes the batch use of the filter screen plate 3. Through ingenious structural design and functional layout, when a certain area of the filter screen plate 3 is blocked due to impurity accumulation, there is no need for overall replacement. Only the corresponding treatment of this part of the area is required, and then it can be switched to other unused areas of the filter screen plate 3 to continue working. This method reduces the frequent replacement of the filter screen plate 3 during use, improves the use efficiency of the filter screen plate 3, effectively reduces the maintenance cost and downtime, and provides a more efficient and convenient solution for actual production.

[0047] To solve the technical problem that the blocking plate 6 will continuously rotate with the rotation of the impeller 5 during the blocking process, as Figure 8 shown, the following preferred technical solutions are provided:

[0048] The limiting assembly includes a first limiting member 9 and a second limiting member 10. The first limiting member 9 and the second limiting member 10 are convenient for restricting the rotation of the blocking plate 6. The first limiting member 9 includes a first sliding groove 91 opened on the inner bottom wall of the feeding pipe 2. The first sliding groove 91 provides a sliding track for the first block - shaped magnet 92. The first block - shaped magnet 92 can stably slide in the first sliding groove 91. The first block - shaped magnet 92 is slidably connected in the first sliding groove 91, and a first insertion rod 93 is fixedly connected to the first block - shaped magnet 92. When it is necessary to restrict the rotation of the blocking plate 6 in the horizontal direction, the first insertion rod 93 can be inserted into the jack 61 pre - opened on the surface of the blocking plate 6, thereby realizing the limitation of the blocking plate 6 and making it unable to rotate.

[0049] The second limiting member 10 includes a second sliding groove 101 formed in the inner side wall of the feeding pipe 2. A second block-shaped magnet 102 is slidably connected in the second sliding groove 101, and a second insertion rod 103 is fixedly connected to the second block-shaped magnet 102. The operating timing and position of the first limiting member 9 are different from those of the second limiting member 10. When the blocking plate 6 rotates to a specific position (such as rotating to a state perpendicular to the initial position by 90 degrees), the first limiting member 9 re-limits the blocking plate 6 to ensure that the blocking plate 6 is stably in this position, so that the pressing plate 73 can closely fit on the used area of the filter screen plate 3, preventing impurities from floating and polluting the unused area.

[0050] The driving assembly 11 facilitates driving the first limiting member 9 and the second limiting member 10 to move horizontally. To conveniently drive the first limiting member 9 and the second limiting member 10 to move horizontally, the driving assembly 11 includes a mounting frame 111 fixedly connected to the side wall of the connecting pipe. An electric push rod 112 is fixedly connected to the mounting frame 111, and a slider 113 is fixedly connected to the output end of the electric push rod 112. When the electric push rod 112 works, it can push the slider 113 to move horizontally, and a strip-shaped magnet 114 is fixedly connected to the side of the slider 113.

[0051] The first block-shaped magnet 92 and the second block-shaped magnet 102 are in sliding contact with the inner wall of the connecting pipe, and the strip-shaped magnet 114 is in sliding contact with the outer wall of the connecting pipe. The first block-shaped magnet 92 and the second block-shaped magnet 102 are both magnetically connected to the strip-shaped magnet 114. By means of magnetic connection, when the strip-shaped magnet 114 moves horizontally under the drive of the electric push rod 112, it can drive the first block-shaped magnet 92 and the second block-shaped magnet 102 to move synchronously in their respective sliding grooves. For example, when it is necessary to release the restriction of the second limiting member 10 on the blocking plate 6, the electric push rod 112 pushes the slider 113, causing the strip-shaped magnet 114 to slide in the second sliding groove 101, so that the second insertion rod 103 is pulled out of the insertion hole 61 of the blocking plate 6, releasing the limit on the blocking plate 6 and enabling it to rotate.

[0052] Insertion holes 61 are formed on the surface of the blocking plate 6. The insertion holes 61 can respectively form a clamping relationship with the first insertion rod 93 and the second insertion rod 103. The insertion holes 61 can accurately be inserted and matched with the first insertion rod 93 or the second insertion rod 103, so as to limit the blocking plate 6 in a vertical or horizontal state.

[0053] Specifically, when the device is in the initial state, the blocking plate 6 maintains a horizontal posture. At this time, the electric push rod 112 has not been started, and the second insertion rod 103 in the second limiting member 10 accurately inserts into the preset insertion hole 61 on the surface of the blocking plate 6, forming a limiting constraint on the blocking plate 6, making it unable to rotate, ensuring the stability of the unused area of the filter screen plate 3 at both ends in the initial state.

[0054] During the operation and use of the device, as the medium continuously flows, the particulate impurities contained therein gradually accumulate on the filter screen plate 3. When the accumulation amount of the impurities reaches a certain level and affects the normal passage of the medium, it is necessary to release the restriction on the blocking plate 6 so that it can rotate. At this time, the electric push rod 112 in the driving assembly 11 starts to work, pushing the slider 113 to move, and then driving the strip-shaped magnet 114 to move horizontally along the outer wall of the connecting pipe. Since there is a magnetic connection relationship between the first block-shaped magnet 92 and the second block-shaped magnet 102 and the strip-shaped magnet 114, they are respectively stressed and slide horizontally in their respective first chutes 91 and second chutes 101. This sliding process causes the second insertion rod 103 to be pulled out from the insertion hole 61 of the blocking plate 6, thereby releasing the restriction of the second limiting member 10 on the blocking plate 6 and prompting the blocking plate 6 to rotate and be adjusted.

[0055] When the blocking plate 6 rotates and adjusts to the vertical state, both ends of the blocking plate 6 respectively abut against the two stoppers 82, and the first insertion rod 93 is exactly in the same horizontal plane as the insertion hole 61 on the blocking plate 6. At this time, the electric push rod 112 is started to contract and reset. The electric push rod 112 drives the slider 113 and the strip-shaped magnet 114 to slide back together. Under the magnetic attraction, the first block-shaped magnet 92 and the second block-shaped magnet 102 are stressed again and slide horizontally in the first chute 91 and the second chute 101 respectively. Among them, the first insertion rod 93 on the end side of the first block-shaped magnet 92 quickly inserts into the insertion hole 61 of the blocking plate 6 to limit the blocking plate 6 again, ensuring that the blocking plate 6 can stably maintain the vertical position, so as to smoothly carry out the filtering operation.

[0056] Through the above structural settings, the rotation of the blocking plate 6 can be effectively and accurately restricted, avoiding the continuous rotation of the blocking plate 6 during the working process, and effectively ensuring the stable operation of the filter screen plate 3.

[0057] In order to solve the technical problem that the blocking plate 6 will scrape off impurities and pollute the unused area of the filter screen plate 3 during the rotation and adjustment process, as Figures 6 - 7 shown, the following preferred technical solutions are provided:

[0058] A ring frame 8 is fixedly connected to the inner wall of the feed pipe 2, and a contact rod 81 is fixedly connected to the ring frame 8. Four contact rods 81 are arranged in a circumferential distribution. The surface of the convex rod 72 is provided with a rounded corner. In order to reduce friction and wear when contacting the contact rod 81, and at the same time utilize the rounded corner characteristic, when the convex rod 72 contacts the contact rod 81, an extrusion effect will be generated, thereby driving the pressing plate 73 to slide out of the cavity 62 and fit the surface of the filter screen plate 3.

[0059] The ring frame 8 is fixedly connected with two stoppers 82, which are symmetrically staggered. The function of the stoppers 82 is to limit the rotation angle of the blocking plate 6, ensure that the blocking plate 6 rotates within a specified angle range, and ensure the accuracy and reliability of the action of the blocking assembly 7.

[0060] Specifically, as the medium continues to flow in, the impact force acts on the impeller 5, causing the impeller 5 to drive the rotating shaft 4 to start rotating, and the blocking plate 6 also rotates accordingly. During the rotation process, the protruding rod 72 gradually disengages from the resistance rod 81, and the resistance force on the spring 71 disappears. The spring 71 uses its elastic performance to drive the protruding rod 72 to slide upward. At the same time, the pressing plate 73 slides up with the protruding rod 72 and is embedded in the cavity 62 of the blocking plate 6, thereby disengaging from the filter plate 3, so that impurities accumulated in the used area of ​​the filter plate 3 will not be scraped off during the rotation process. At the same time, during adjustment, the second limit member 10 releases the restriction on the blocking plate 6. As the blocking plate 6 rotates, when the blocking plate 6 rotates to a position 90 degrees from the initial position When the locking cam 72 is in the closed position, the locking cam 73 is in the closed position, and the locking cam 73 is in the open position, so that the locking cam 73 is in the open position and the locking cam 73 is in the open position.

[0061] Through the above-mentioned structural setting, the sealing area used by the filter plate 3 can be effectively sealed and blocked, effectively preventing impurities accumulated on the surface of the filter plate 3 from floating due to force during the adjustment of the sealing plate 6 and contaminating the unused area, thereby avoiding contamination of the filter plate 3 and ensuring its normal use.

[0062] In order to better explain the above embodiment, another embodiment is proposed, a method for using a magnetic pump that can prevent medium particle impurities from entering, comprising the following steps:

[0063] Step 1: Check the state of the blocking plate 6 in the initial position to confirm that it cannot rotate, ensure that the abutment rod 81 and the protruding rod 72 are in contact with each other so that the pressing plate 73 is attached to the surface of the unused area of ​​the filter plate 3, and at the same time confirm whether the block 82 effectively blocks and limits the pressing plate 73 from both ends, and ensure whether the second limit member 10 limits and constrains the blocking plate 6 in the initial state;

[0064] Step 2: After confirming that the area of the filter screen plate 3 not blocked by the pressing plate 73 is in an open state, start the magnetic pump. The medium flows in from the feed pipe 2, passes through the open area of the filter screen plate 3, and enters the magnetic pump body 1 after being filtered by the filter screen plate 3, thereby achieving efficient interception and filtration of impurities in the medium and ensuring the normal operation of the magnetic pump;

[0065] Step 3: During use, when it is observed that particulate impurities gradually accumulate on the surface of the filter screen plate 3 and reach a level that affects the normal passage of the medium, start the first plug rod 93 or the second plug rod 103 in the driving assembly 11 to limit or release the limit of the blocking plate 6 in order to meet the limit requirements of the blocking plate 6 in different states, and achieve the limitation and separation of the blocking plate 6 by the limiting component;

[0066] Step 4: After the restriction is released, as the medium continues to flow in, the impact force acts on the impeller 5. The impeller 5 drives the rotating shaft 4 and the blocking plate 6 to rotate, and then adjusts the blocking positions of the blocking plate 6 and the pressing plate 73, realizing the batch use of the filter screen plate 3 and improving the utilization rate of the filter screen plate 3;

[0067] Step 5: During the adjustment process, the convex rod 72 gradually disengages from the contact rod 81, and the spring 71 drives the convex rod 72 and the pressing plate 73 to embed into the cavity 62 of the blocking plate 6 and separate from the filter screen plate 3, ensuring that the impurities accumulated on the surface of the filter screen plate 3 will not float due to force and accumulate in the unused area, and ensuring the normal use of the filter screen plate 3.

[0068] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0069] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood 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.

Claims

1. A magnetic pump capable of preventing medium particles from entering, comprising a magnetic pump body (1) and a feed pipe (2) installed at the input end of the magnetic pump body (1), characterized in that: A filter plate (3) is installed in the feeding pipe (2), a rotating shaft (4) is rotatably connected inside the filter plate (3), an impeller (5) is fixedly connected to one end of the rotating shaft (4), a sealing plate (6) is coaxially fixed to the other end of the rotating shaft (4), and a pressing plate (73) is slidably connected inside the sealing plate (6); Also includes: A blocking component (7), wherein the blocking component (7) is used to drive the pressing plate (73) to fit the filter plate (3) to block the filter plate; A limiting assembly, the limiting assembly comprising a first limiting member (9) and a second limiting member (10), wherein the first limiting member (9) and the second limiting member (10) are used to limit the rotation of the blocking plate (6); A driving assembly (11), wherein the driving assembly (11) is configured to drive the first limiting member (9) and the second limiting member (10) to move horizontally.

2. A magnetic pump capable of preventing medium particle impurities from entering according to claim 1, characterized in that: The blocking assembly (7) comprises a cavity (62) opened inside the blocking plate (6), a plurality of springs (71) are fixedly connected inside the cavity (62), two ends of the plurality of springs (71) are respectively fixedly connected to the inner wall of the blocking plate (6) and the bottom wall of the clamping plate (73), a protruding rod (72) is fixedly connected to the inner wall of the clamping plate (73), and the protruding rod (72) is slidably connected to the blocking plate (6).

3. A magnetic pump capable of preventing medium particle impurities from entering according to claim 2, characterized in that: The inner wall of the feeding pipe (2) is fixedly connected with a ring frame (8), and the ring frame (8) is fixedly connected with a resistance rod (81). Four resistance rods (81) are arranged in a circumferential distribution, and the surface of the protruding rod (72) is arranged with rounded corners.

4. A magnetic pump capable of preventing the entry of medium particles and impurities according to claim 3, characterized in that: Two stoppers (82) are fixedly connected to the ring frame (8), and the two stoppers (82) are symmetrically and staggeredly arranged.

5. A magnetic pump capable of preventing medium particle impurities from entering according to claim 4, characterized in that: The first limiting member (9) comprises a first sliding groove (91) provided on the inner bottom wall of the feeding tube (2), a first block magnet (92) being slidably connected in the first sliding groove (91), and a first insertion rod (93) being fixedly connected to the first block magnet (92).

6. A magnetic pump capable of preventing the entry of medium particles and impurities according to claim 5, characterized in that: The second limiting member (10) comprises a second sliding groove (101) provided on the inner wall of the feeding tube (2), a second block magnet (102) being slidably connected in the second sliding groove (101), and a second insertion rod (103) being fixedly connected to the second block magnet (102).

7. A magnetic pump capable of preventing the entry of medium particles and impurities according to claim 6, characterized in that: The driving assembly (11) comprises a mounting frame (111) fixedly connected to the side wall of the connecting pipe, an electric push rod (112) fixedly connected to the mounting frame (111), a slider (113) fixedly connected to the output end of the electric push rod (112), and a strip-shaped magnet (114) fixedly connected to the end side of the slider (113).

8. A magnetic pump capable of preventing medium particle impurities from entering according to claim 7, characterized in that: The first block magnet (92) and the second block magnet (102) slide in contact with the inner wall of the connecting tube, and the strip magnet (114) slides in contact with the outer wall of the connecting tube. The first block magnet (92) and the second block magnet (102) are both magnetically connected to the strip magnet (114).

9. A magnetic pump capable of preventing medium particle impurities from entering according to claim 8, characterized in that: The surface of the blocking plate (6) is provided with an insertion hole (61), and the insertion hole (61) can respectively form a snap-fitting relationship with the first insertion rod (93) and the second insertion rod (103).

10. A method for using a magnetic pump capable of preventing medium particle impurities from entering as described in claims 1-9, characterized in that: The steps include: S1: Check the state of the blocking plate (6) in the initial position to confirm that it cannot rotate, ensure that the abutting rod (81) and the protruding rod (72) are in contact with each other so that the pressing plate (73) is attached to the surface of the unused area of ​​the filter plate (3), and at the same time confirm whether the stopper (82) effectively blocks and limits the pressing plate (73) from both ends, and ensure whether the second limiting member (10) limits and constrains the blocking plate (6) in the initial state; S2: After confirming that the area of ​​the filter plate (3) not blocked by the pressing plate (73) is in an open state, the magnetic pump is started, and the medium flows from the feed pipe (2), passes through the open area of ​​the filter plate (3), and enters the magnetic pump body (1) after being filtered by the filter plate (3), thereby achieving efficient interception and filtration of impurities in the medium, and ensuring the normal operation of the magnetic pump; S3: When it is observed during use that particulate impurities gradually accumulate on the surface of the filter plate (3) and reach a level that affects the normal passage of the medium, the first plug rod (93) or the second plug rod (103) in the drive assembly (11) is started to limit or release the blocking plate (6) so as to meet the limiting requirements of the blocking plate (6) in different states, thereby achieving the limiting and separation of the blocking plate (6) by the limiting assembly; S4: After the restriction is released, as the medium continues to flow in, the impact force acts on the impeller (5), and the impeller (5) drives the rotating shaft (4) and the blocking plate (6) to rotate, thereby adjusting the blocking positions of the blocking plate (6) and the pressing plate (73), thereby realizing batch use of the filter plate (3) and improving the utilization rate of the filter plate (3); S5: During the adjustment process, the protruding rod (72) gradually separates from the abutting rod (81), and the spring (71) drives the protruding rod (72) and the pressing plate (73) to be embedded in the cavity (62) of the blocking plate (6) and separate from the filter plate (3), thereby ensuring that impurities accumulated on the surface of the filter plate (3) will not float due to the force and accumulate in an unused area, thereby ensuring the normal use of the filter plate (3).

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