Lightweight high-speed magnetic drive centrifugal pump

Abstract

The present application relates to the technical field of centrifugal pump, disclose a light high-speed magnetic drive centrifugal pump, including mutually fixed installation first shell and second shell, first shell is provided with first flow guide mechanism, first flow guide mechanism includes flow guide piece, flow guide piece fixedly installed in first shell inner wall, first shell inside is provided with impeller, the second flow guide mechanism is provided on the impeller, the second flow guide mechanism includes first blade and second blade fixedly installed on both sides of impeller, the rotation direction of first blade and second blade is opposite to the rotation direction of flow guide piece.The present application sets up flow guide piece to first shell, and first flow guide surface and second flow guide surface are set up to multiple flow guide pieces, the action generated by two can make water flow rotate along the axial direction of first shell and move radially, can make water flow pass through second shell smoothly and be discharged from water outlet, avoid the increase of local pressure and cause loss.

Description

Technical Field

[0001] This invention belongs to the field of centrifugal pump technology, and more specifically, relates to a lightweight high-speed magnetically driven centrifugal pump. Background Technology

[0002] The aeration liquid in the aeration tank usually contains a large number of bubbles. When using a conventional pump for transportation, since the conventional pump relies on the compression of the liquid during operation, when it transports the aeration liquid, the large number of bubbles in the aeration liquid causes the overall volume of the liquid to be compressed, thereby converting pressure energy into internal energy. At this time, the overall energy efficiency of the pump is reduced.

[0003] Centrifugal pumps rely on the centrifugal force of the liquid itself during rotation to drive the operation. They do not compress the liquid significantly during operation, which greatly reduces the pressure energy converted into internal energy in the liquid, making them suitable for transporting aerated liquids.

[0004] Chinese Patent CN203655659U discloses a miniature single-suction vertical centrifugal pump, comprising a miniature motor and its rotor-driven impeller, and a cavity enclosing the impeller. The cavity, according to the orientation of its inner wall, includes the following portions: an upper portion facing the upper end face of the impeller; a lower portion facing the lower end face of the impeller, where the pump's suction inlet is located or leads to; and a side portion facing the outer edge of the impeller, leading to the pump's discharge outlet. A channel is provided in the upper portion of the cavity, connecting an opening in its inner wall to an opening in its outer wall. This design can improve the severe noise problem when the water level in the tank where the pump operates is below the upper portion of the cavity.

[0005] However, this technical solution still has at least the following drawbacks: although it can effectively solve the noise problem of centrifugal pumps, it does not significantly improve the overall efficiency of centrifugal pumps. Therefore, this invention is proposed. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a lightweight high-speed magnetically driven centrifugal pump. By setting a flow guide in the first housing and setting a first flow guide surface and a second flow guide surface in the flow guide, the water flow can rotate axially and move radially along the first housing, allowing the water flow to pass smoothly through the second housing and be discharged from the outlet, avoiding the loss caused by local pressure increase. By setting a first blade and a second blade in the impeller, the water flow can move radially along the impeller under the action of centrifugal force. At the same time, the angle design of the first blade and the second blade can accelerate the movement of the water flow in the axial direction of the impeller, so as to drive the water flow further towards the second housing, thereby improving energy efficiency.

[0007] The technical solution adopted by this invention to solve its technical problem is:

[0008] A lightweight, high-speed magnetically driven centrifugal pump includes a first housing and a second housing fixedly installed together. A first flow guiding mechanism is provided inside the first housing. The first flow guiding mechanism includes a flow guiding element, which is fixedly installed on the inner wall of the first housing. An impeller is provided inside the first housing. A second flow guiding mechanism is provided on the impeller. The second flow guiding mechanism includes a first blade and a second blade fixedly installed on both sides of the impeller. The rotation direction of the first blade and the second blade is opposite to the rotation direction of the flow guiding element. When the impeller rotates, the first blade and the second blade agitate the water flow to rotate, causing it to move radially along the first housing through centrifugal force and enter the flow guiding element.

[0009] In a preferred embodiment of the present invention, the flow guide includes a first flow guide surface and a second flow guide surface. The first flow guide surface and the second flow guide surface are inclined. When the water flows through the first flow guide surface, it moves circumferentially along the first shell. When it flows through the second flow guide surface, it moves both circumferentially and radially along the first shell.

[0010] In a preferred embodiment of the present invention, the first blade is inclined from the outside of the impeller toward the center, and the direction of inclination is opposite to the direction of impeller rotation. The second blade is inclined from the center of the impeller toward the outside, and the direction of inclination is the same as the direction of impeller rotation. When the first blade rotates, the water flows radially and axially toward the second housing at the same time. When the second blade rotates, the water flows into the first housing.

[0011] In a preferred embodiment of the present invention, the impeller has a notch on its side and a guide slope on one side of the notch. When the impeller rotates, the guide slope generates a thrust in the axial direction of the impeller on the water flow. The impeller also has a water passage hole, which is inclined along the circumference of the impeller so that when the impeller rotates, the water flow enters the second blade from one side of the first blade through the water passage hole.

[0012] In a preferred embodiment of the present invention, a water outlet is installed on the second housing, and an exhaust mechanism is also provided on the second housing. The exhaust mechanism includes a mounting bracket, on which a plunger is rotatably mounted. The bottom of the plunger moves through the second housing and extends to the outside, and the shape of the bottom of the plunger is adapted to the inner wall of the second housing. A groove is provided on the side of the plunger.

[0013] In a preferred embodiment of the present invention, a water inlet is installed inside the second housing, an inducer wheel is provided inside the water inlet, the inducer wheel is fixedly connected to the impeller via a rotating shaft, a water inlet pipe is provided at one end of the water inlet, a water suction pipe is installed at one end of the water inlet pipe, and an adjustment mechanism is provided on the outside of the water suction pipe for adjusting the cross-sectional area of ​​the water suction pipe.

[0014] In a preferred embodiment of the present invention, the adjusting mechanism includes a squeezing rod fixedly installed on the suction pipe, and a fixing plate is fixedly installed on one side of the squeezing rod. An insert rod is installed on the fixing plate, a movable ring is movably sleeved on the insert rod, a collar is rotatably installed on the movable ring, and a rotating rod is movably inserted into the collar. When the rotating rod rotates, it drives the squeezing rod to move to squeeze the suction pipe.

[0015] In a preferred embodiment of the present invention, the adjusting mechanism further includes mounting plates fixedly installed on the upper and lower sides of the water suction pipe. The end of the rotating rod is rotatably connected to the mounting plate. A driving assembly is provided on the mounting plate at the top. The driving assembly includes a cylinder fixedly installed on the mounting plate. A first pull rod is fixedly and rotatably installed on the output end of the cylinder. A second pull rod is rotatably installed on one end of the first pull rod. One end of the second pull rod is fixedly connected to one end of the rotating rod.

[0016] In a preferred embodiment of the present invention, a filtration mechanism is provided between the water inlet and the water inlet pipe. The filtration mechanism includes a filter tube, and both ends of the filter tube are connected to the water inlet and the water inlet pipe, respectively. A filter element is movably connected inside the filter tube, and a filter screen is installed inside the filter element. An adjusting rod is rotatably connected to the filter tube, and the adjusting rod is fixedly connected to the filter element.

[0017] In a preferred embodiment of the present invention, a magnetic coupler is provided at one end of the first housing. The magnetic coupler includes a first rotor, a second rotor, and a mounting shell. The second rotor is fixedly connected to the impeller. A power source is installed at one end of the mounting shell, and the output end of the power source is fixedly connected to the first rotor.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The present invention provides a flow guide to the first shell and provides a first flow guide surface and a second flow guide surface to the multiple flow guides. The combined effect of the two can make the water flow rotate axially and move radially along the first shell, and can make the water flow smoothly pass through the second shell and be discharged from the outlet, avoiding the loss caused by the increase of local pressure.

[0020] This invention uses a first blade and a second blade on an impeller to enable water flow to move radially along the impeller under centrifugal force. At the same time, the angle design of the first blade and the second blade can accelerate the movement of water flow in the axial direction of the impeller, so that it can drive the water flow to move further towards the second housing, thereby improving energy efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the lightweight high-speed magnetically driven centrifugal pump of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the second housing of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure at the inducer wheel of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the flow guide component of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure at the first blade of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure at the second blade of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the magnetic coupler of the present invention;

[0028] Figure 8 This is a schematic diagram of the plunger structure of the present invention;

[0029] Figure 9 This is a schematic diagram of the plunger in the closed state of the present invention;

[0030] Figure 10 This is a schematic diagram of the plunger in the open state of the present invention;

[0031] Figure 11 This is a schematic diagram of the structure of the water suction pipe of the present invention;

[0032] Figure 12 This is a schematic diagram of the structure at the rotating rod of the present invention;

[0033] Figure 13 This is a schematic diagram of the filter structure of the present invention.

[0034] Figure label:

[0035] 100. First housing; 101. Flow guide; 102. First flow guide surface; 103. Second flow guide surface; 104. Second housing; 105. Water outlet; 106. Water inlet; 107. Inducer wheel;

[0036] 200. Impeller; 201. First blade; 202. Water passage; 203. Second blade; 204. Notch; 205. Guide slope;

[0037] 300. Mounting bracket; 301. Plunger; 302. Groove;

[0038] 400. Inlet pipe; 401. Suction pipe; 402. Mounting plate; 403. Cylinder; 404. First pull rod; 405. Second pull rod; 406. Rotating rod; 407. Collar; 408. Movable ring; 409. Insert rod; 410. Fixing plate; 411. Pressing rod;

[0039] 500, Power source; 501, Mounting housing; 502, First rotor; 503, Second rotor;

[0040] 600. Filter tube; 601. Filter element; 602. Filter screen; 603. Adjusting rod. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0042] Example 1:

[0043] like Figures 1 to 13 As shown, a lightweight high-speed magnetically driven centrifugal pump includes a first housing 100 and a second housing 104 fixedly installed together. A first flow guiding mechanism is provided inside the first housing 100. The first flow guiding mechanism includes a flow guiding element 101, which is fixedly installed on the inner wall of the first housing 100. An impeller 200 is provided inside the first housing 100. A second flow guiding mechanism is provided on the impeller 200. The second flow guiding mechanism includes a first blade 201 and a second blade 203 fixedly installed on both sides of the impeller 200. The rotation direction of the first blade 201 and the second blade 203 is opposite to the rotation direction of the flow guiding element 101. When the impeller 200 rotates, the first blade 201 and the second blade 203 agitate the water flow to rotate so that it moves radially along the first housing 100 through centrifugal force and enters the flow guiding element 101.

[0044] like Figure 3 , Figure 4 As shown, in a specific embodiment, the flow guide 101 includes a first flow guide surface 102 and a second flow guide surface 103. The first flow guide surface 102 and the second flow guide surface 103 are inclined. When the water flows through the first flow guide surface 102, it moves circumferentially along the first housing 100. When it flows through the second flow guide surface 103, it moves both circumferentially and radially along the first housing 100. In this configuration, multiple flow guides 101 are provided to increase the guiding effect on the water flow. The portion of the first housing 100 where the flow guides 101 are installed is arc-shaped to guide the water flow.

[0045] like Figure 3 , Figure 5 , Figure 6As shown, further, the first blade 201 is inclined from the outside of the impeller 200 towards the center, and the direction of inclination is opposite to the rotation direction of the impeller 200. The second blade 203 is inclined from the center of the impeller 200 towards the outside, and the direction of inclination is the same as the rotation direction of the impeller 200. When the first blade 201 rotates, it causes the water flow to move radially and axially towards the second housing 104 simultaneously. When the second blade 203 rotates, it causes the water flow to enter the first housing 100. In this configuration, the water outlet angle at the outer ends of the first blade 201 and the second blade 203 is relatively large to increase the velocity of the water flow in the tangential direction and reduce the velocity in the radial direction, avoiding energy loss caused by high-speed impact on the first housing 100. At the same time, the water flow enters the guide member 101 smoothly after maintaining rotation in the same direction as the impeller 200.

[0046] like Figure 5 , Figure 6 As shown, further, the impeller 200 has a notch 204 on its side, and a guide slope 205 is provided on one side of the notch 204. When the impeller 200 rotates, the guide slope 205 generates an axial thrust on the water flow. The impeller 200 also has a water passage hole 202, which is inclined along the circumference of the impeller 200 so that when the impeller 200 rotates, the water flow passes through the water passage hole 202 from the side of the first blade 201 to the side of the second blade 203. In this configuration, the water passage hole 202 allows water to flow from the side of the first blade 201 to the side of the second blade 203, ensuring water flow on both sides of the impeller 200, reducing the axial force on the impeller 200. Simultaneously, the inclined arrangement of the water passage hole 202 allows water to enter the water passage hole 202 when the impeller rotates and moves in the opposite direction to the water flow.

[0047] like Figure 2 , Figure 8 , Figure 9 , Figure 10As shown, a water outlet 105 is installed on the second housing 104, and an exhaust mechanism is also provided on the second housing 104. The exhaust mechanism includes a mounting bracket 300, on which a plunger 301 is rotatably mounted. The bottom of the plunger 301 moves through the second housing 104 and extends to the outside. The bottom of the plunger 301 is adapted to the shape of the inner wall of the second housing 104. A groove 302 is provided on the side of the plunger 301. In this configuration, the plunger 301 is installed on one side of the top of the second housing 104, and its intersection with the inner wall of the second housing 104 is inclined. When the plunger 301 rotates 90 degrees, the groove 302 on its side connects the inside and outside of the second housing 104 to allow gas to be discharged. When the plunger 301 is reset, the groove 302 is completely located outside the second housing 104, so that the second housing 104 cannot exhaust gas through the groove 302. At the same time, the bottom of the plunger 301 is adapted to the shape of the inner wall of the second housing 104 so that when the plunger 301 is in the reset state, the second housing 104 is kept in a continuous smooth state.

[0048] Example 2:

[0049] like Figure 3 , Figure 11 , Figure 12 As shown, in a specific embodiment, a water inlet 106 is installed inside the second housing 104. An inducer wheel 107 is installed inside the water inlet 106. The inducer wheel 107 is fixedly connected to the impeller 200 via a rotating shaft. A water inlet pipe 400 is provided at one end of the water inlet 106, and a suction pipe 401 is installed at the other end. An adjustment mechanism is provided on the outside of the suction pipe 401 to adjust the cross-sectional area of ​​the suction pipe 401. In this configuration, the inducer wheel 107 is used to increase the water pressure at the water inlet 106, preventing the precipitation of air bubbles in the water due to excessively low pressure.

[0050] like Figure 11 , Figure 12As shown, the adjusting mechanism further includes a squeezing rod 411 fixedly installed on the suction pipe 401, and a fixing plate 410 fixedly installed on one side of the squeezing rod 411. An insert rod 409 is installed on the fixing plate 410, and a movable ring 408 is movably sleeved on the insert rod 409. A collar 407 is rotatably installed on the movable ring 408, and a rotating rod 406 is movably inserted into the collar 407. When the rotating rod 406 rotates, it drives the squeezing rod 411 to move and squeeze the suction pipe 401. The adjusting mechanism also includes... The device includes mounting plates 402 fixedly installed on the upper and lower sides of the suction pipe 401. The end of the rotating rod 406 is rotatably connected to the mounting plates 402. A drive assembly is provided on the mounting plate 402 at the top. The drive assembly includes a cylinder 403 fixedly installed on the mounting plate 402. A first pull rod 404 is fixedly and rotatably installed on the output end of the cylinder 403. A second pull rod 405 is rotatably installed on one end of the first pull rod 404. One end of the second pull rod 405 is fixedly connected to one end of the rotating rod 406. In this configuration, there are two sets of rotating rods 406, located at both ends of the suction pipe 401. Each set of rotating rods 406 consists of two symmetrically distributed semicircles. When the two sets of rotating rods 406 rotate to a state parallel to the cross-section of the suction pipe 401, the rotating rods 406 of each set form a circle to open the suction pipe 401. Conversely, if the two sets of rotating rods 406 rotate to an inclined state, the area of ​​each set of rotating rods 406 in the axial direction of the suction pipe 401 decreases, thereby driving the squeezing rod 411 to squeeze the suction pipe 401 and reduce its cross-sectional area.

[0051] like Figure 1 , Figure 2 , Figure 13 As shown in the specific embodiment, a filtration mechanism is provided between the water inlet 106 and the water inlet pipe 400. The filtration mechanism includes a filter tube 600, with both ends of the filter tube 600 connected to the water inlet 106 and the water inlet pipe 400, respectively. A filter element 601 is movably connected inside the filter tube 600, and a filter screen 602 is installed inside the filter element 601. An adjusting rod 603 is rotatably connected to the filter tube 600, and the adjusting rod 603 is fixedly connected to the filter element 601. In this configuration, when the centrifugal pump is working, impurities are filtered after water flows through the filter screen 602. The filter screen 602 is composed of two planar meshes fixed vertically. After the filter screen 602 has been used for a period of time, the filter element 601 can be driven to rotate by rotating the adjusting rod 603. The filter element 601 drives the filter screen 602 to rotate, thereby replacing the filter surface of the filter screen 602 and extending its service life.

[0052] Example 3:

[0053] like Figure 1 , Figure 2 , Figure 3 , Figure 7As shown, further, a magnetic coupler is provided at one end of the first housing 100. The magnetic coupler includes a first rotor 502, a second rotor 503, and a mounting housing 501. The second rotor 503 is fixedly connected to the impeller 200. A power source 500 is mounted at one end of the mounting housing 501, and the output end of the power source 500 is fixedly connected to the first rotor 502. In this configuration, the power source 500 can be an electric motor, which drives the first rotor 502 to rotate during operation. The first rotor 502 drives the second rotor 503 to rotate, thereby causing the impeller 200 to rotate.

[0054] The implementation principle of the lightweight high-speed magnetically driven centrifugal pump in this embodiment is as follows: During operation, the impeller 200 rotates and simultaneously drives the inducer 107 to rotate. The inducer 107 applies pressure to the water at the inlet 106 to increase the water pressure at the inlet 106, thereby suppressing the precipitation of bubbles and reducing the impact of cavitation on the centrifugal pump. After the water flows into the impeller 200, it rotates rapidly under the action of the first blade 201 and flows towards the inner wall of the first housing 100 under its own centrifugal force. At the same time, the impeller 200 rotates and water enters through the water passage 202 so that some water flows into the side where the second blade 203 is located, thereby reducing the thrust generated by the water flow on the impeller 200 in the axial direction. At the same time, when the second blade 203 rotates, it drives the water flow to move towards the edge of the impeller 200 and flows to the inner wall of the first housing 100 through the notch 204.

[0055] When the water flows at the first housing 100, it rotates and flows along the guide 101. Under the action of the first guide surface 102 and the second guide surface 103, it flows towards the second housing 104. During this process, the water in the second housing 104 rotates and flows along the inner wall and is discharged through the outlet 105.

[0056] When the centrifugal pump operates at a high power, the water intake is large. At this time, the control cylinder 403 extends, and the cylinder 403 drives the second pull rod 405 to rotate through the first pull rod 404. The second pull rod 405 drives the rotating rod 406 to rotate. The rotating rod 406 rotates until its plane is parallel to the cross-section of the suction pipe 401. During this process, the rotating rod 406 drives the insertion rod 409 to move through the collar 407 and the movable ring 408, thereby moving the squeezing rod 411. At this time, the multiple squeezing rods 411 drive the suction pipe 401 to expand, thereby increasing its cross-sectional area. When the centrifugal pump is working, the water flow rate is reduced due to the expansion of the suction pipe 401, which in turn reduces the internal negative pressure and improves the service life of the centrifugal pump.

[0057] When the centrifugal pump operates at a low power, the water intake is small. At this time, the control cylinder 403 contracts. The cylinder 403 drives the rotating rod 406 to rotate through the first pull rod 404 and the second pull rod 405. The rotating rod 406 drives the insertion rod 409 to move through the collar 407 and the movable ring 408, which in turn causes the squeezing rod 411 to move and squeeze the suction pipe 401. At this time, the cross-sectional area of ​​the suction pipe 401 decreases to appropriately increase the flow rate and avoid the centrifugal pump efficiency from decreasing due to insufficient flow. At the same time, keeping the cross-sectional area of ​​the suction pipe 401 in a reduced state during startup can accelerate the establishment of negative pressure and shorten the water filling time of the suction pipe 401.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A lightweight, high-speed magnetically driven centrifugal pump, characterized in that, The system includes a first housing (100) and a second housing (104) fixedly installed together. The first housing (100) is provided with a first flow guiding mechanism, which includes a flow guiding component (101). The flow guiding component (101) is fixedly installed on the inner wall of the first housing (100). The first housing (100) is provided with an impeller (200). The impeller (200) is provided with a second flow guiding mechanism, which includes a first blade (201) and a second blade (203) fixedly installed on both sides of the impeller (200). The rotation direction of the first blade (201) and the second blade (203) is opposite to that of the flow guiding component (101). When the impeller (200) rotates, the first blade (201) and the second blade (203) agitate the water flow to rotate so that it moves radially along the first housing (100) through centrifugal force and enters the flow guiding component (101). The flow guide (101) includes a first flow guide surface (102) and a second flow guide surface (103). The first flow guide surface (102) and the second flow guide surface (103) are inclined. When the water flows through the first flow guide surface (102), it moves circumferentially along the first shell (100). When it flows through the second flow guide surface (103), it moves both circumferentially and radially along the first shell (100). The first blade (201) is inclined from the outside of the impeller (200) towards the center, and the direction of inclination is opposite to the direction of rotation of the impeller (200). The second blade (203) is inclined from the center of the impeller (200) towards the outside, and the direction of inclination is the same as the direction of rotation of the impeller (200). When the first blade (201) rotates, it causes the water to move radially and axially towards the second housing (104) at the same time. When the second blade (203) rotates, it causes the water to enter the first housing (100). The impeller (200) has a notch (204) on its side and a guide slope (205) on one side of the notch (204). When the impeller (200) rotates, the guide slope (205) generates a thrust in the axial direction of the impeller (200) on the water flow. The impeller (200) also has a water passage hole (202). The water passage hole (202) is inclined along the circumference of the impeller (200) so that when the impeller (200) rotates, the water flow enters the second blade (203) from the side of the first blade (201) through the water passage hole (202).

2. The lightweight high-speed magnetically driven centrifugal pump according to claim 1, characterized in that, The second housing (104) is equipped with a water outlet (105) and a venting mechanism. The venting mechanism includes a mounting bracket (300) on which a plunger (301) is rotatably mounted. The bottom of the plunger (301) extends through the second housing (104) and outwards. The bottom of the plunger (301) is adapted to the shape of the inner wall of the second housing (104). A groove (302) is provided on the side of the plunger (301).

3. The lightweight high-speed magnetically driven centrifugal pump according to claim 2, characterized in that, The second housing (104) is equipped with a water inlet (106), and an inducer wheel (107) is provided inside the water inlet (106). The inducer wheel (107) is fixedly connected to the impeller (200) through a rotating shaft. A water inlet pipe (400) is provided at one end of the water inlet (106), and a water suction pipe (401) is installed at one end of the water inlet pipe (400). An adjustment mechanism is provided on the outside of the water suction pipe (401), and the adjustment mechanism is used to adjust the cross-sectional area of ​​the water suction pipe (401).

4. The lightweight high-speed magnetically driven centrifugal pump according to claim 3, characterized in that, The adjusting mechanism includes a squeezing rod (411) fixedly installed on the suction pipe (401), and a fixing plate (410) fixedly installed on one side of the squeezing rod (411). A plug rod (409) is installed on the fixing plate (410), and a movable ring (408) is movably sleeved on the plug rod (409). A collar (407) is rotatably installed on the movable ring (408), and a rotating rod (406) is movably inserted into the collar (407). When the rotating rod (406) rotates, it drives the squeezing rod (411) to move to squeeze the suction pipe (401).

5. The lightweight high-speed magnetically driven centrifugal pump according to claim 4, characterized in that, The adjustment mechanism also includes mounting plates (402) fixedly installed on the upper and lower sides of the water suction pipe (401). The end of the rotating rod (406) is rotatably connected to the mounting plate (402). A drive assembly is provided on the mounting plate (402) at the top. The drive assembly includes a cylinder (403) fixedly installed on the mounting plate (402). A first pull rod (404) is fixedly and rotatably installed on the output end of the cylinder (403). A second pull rod (405) is rotatably installed on one end of the first pull rod (404). One end of the second pull rod (405) is fixedly connected to one end of the rotating rod (406).

6. The lightweight high-speed magnetically driven centrifugal pump according to claim 5, characterized in that, A filtration mechanism is provided between the water inlet (106) and the water inlet pipe (400). The filtration mechanism includes a filter tube (600), and both ends of the filter tube (600) are connected to the water inlet (106) and the water inlet pipe (400) respectively. A filter element (601) is movably connected inside the filter tube (600). A filter screen (602) is installed inside the filter element (601). An adjusting rod (603) is rotatably connected to the filter tube (600), and the adjusting rod (603) is fixedly connected to the filter element (601).

7. The lightweight high-speed magnetically driven centrifugal pump according to claim 6, characterized in that, A magnetic coupler is provided at one end of the first housing (100). The magnetic coupler includes a first rotor (502), a second rotor (503), and a mounting shell (501). The second rotor (503) is fixedly connected to the impeller (200). A power source (500) is installed at one end of the mounting shell (501). The output end of the power source (500) is fixedly connected to the first rotor (502).

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