Horizontal self-priming centrifugal pump

Abstract

The present application relates to the field of centrifugal pump, concretely is a kind of horizontal self-priming centrifugal pump, including bracing plate, the bracing plate is used to support the support treatment of overall equipment;Water suction mechanism, the water suction mechanism is used to overflow when entering water, handle part water flow;Pressure relief mechanism, the pressure relief mechanism is used to when water pressure in pump is too large, the water flow treatment of discharge;Centrifugal mechanism, the centrifugal mechanism is used to produce rotation to water flow, and make water flow produce centrifugal force and flow out outward;The top of the bracing plate is fixedly connected with pump shell, the top of the pump shell is fixedly connected with water outlet pipe, the horizontal self-priming centrifugal pump, by the movement of half-open impeller towards the inside of water seal component, so that the blade on half-open impeller will be more and more close to the vertical plane where regulation block is located, thus with the rotation of half-open impeller, part centrifugal water flow will impact on regulation block, thereby play the role of reducing the flow and flow rate of water flow from water outlet pipe.

Description

A horizontal self-priming centrifugal pump Technical Field

[0001] This invention relates to the field of centrifugal pump technology, specifically a horizontal self-priming centrifugal pump. Background Technology

[0002] A self-priming centrifugal pump is a type of centrifugal pump. It refers to a centrifugal pump that, except for the initial priming before startup, does not require priming upon subsequent startups and can automatically extract gas from the suction pipe to transport liquid normally.

[0003] The pump has an additional suction chamber at the inlet, and the suction pipe is located above the impeller centerline. After the pump stops, some liquid remains in the suction chamber. When the pump is restarted, the liquid remaining in the suction chamber circulates within the pump, drawing gas from the suction pipe into the impeller. After mixing inside the impeller (internal mixing type) or at the impeller outlet (external mixing type), the mixture enters the gas-liquid separation chamber added at the outlet to separate the gas and liquid. The gas is discharged outside the pump, and the liquid flows back into the suction chamber until the suction pipe is full of liquid, allowing for normal liquid transport.

[0004] The existing horizontal self-priming centrifugal pumps have the following problems: 1. The pipes are sealed and connected by sealing rings. However, when the water pressure inside the pipe or the centrifugal pump is too high and the sealing rings are impacted for a long time, the sealing rings will crack and water will overflow; 2. The existing centrifugal pumps regulate the frequency and rate of water delivery by external pressing equipment. This not only causes wear on the external pipes, but also the efficiency and effect of the regulation are much lower than those of internal regulation. Summary of the Invention

[0005] The present invention provides a horizontal self-priming centrifugal pump to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a horizontal self-priming centrifugal pump, including a support plate, which is used to support the overall equipment;

[0007] A water suction mechanism is used to handle the overflow of some water when water is introduced;

[0008] Pressure relief mechanism, which is used to release water when the water pressure inside the pump is too high;

[0009] A centrifugal mechanism is used to rotate the water flow and cause the water flow to flow outward by centrifugal force;

[0010] The top of the support plate is fixedly connected to the pump casing, the top of the pump casing is fixedly connected to the water outlet pipe, the water suction mechanism and the pressure relief mechanism are both fixedly installed on the outside of the pump casing, the centrifugal mechanism is located inside the pump casing, and the bottom of the centrifugal mechanism is fixedly connected to the support plate.

[0011] The centrifugal mechanism includes a chamber plate, which is fixedly connected to the inside of the pump casing, and a centrifugal assembly is fixedly installed on the outside of the chamber plate.

[0012] The centrifugal assembly includes a water seal component. An adjustment block is fixedly connected to the inner side of the water seal component. The water seal component is fixedly connected to the outer side of the chamber plate. A smooth rod is fixedly connected to the inner side of the water seal component. An inner locking block is fixedly connected to the end of the smooth rod away from the water seal component. The inner locking block is fixedly connected to the inner side of the water seal component. A bearing is slidably fitted to the outer side of the smooth rod. A semi-open impeller is fitted to the inner side of the bearing. A connecting shaft is fixedly connected to the inner side of the semi-open impeller. The connecting shaft is rotatably connected to the outer side of both the water seal component and the pump casing. An adjustment component is fixedly connected to the end of the connecting shaft away from the semi-open impeller.

[0013] Preferably, the water suction mechanism includes a sleeve, and a locking element is provided on the outside of the sleeve. The sleeve is fixedly installed on the outside of the pump housing by the locking element. A water suction pipe is provided inside the sleeve. A guide rail and a driver are fixedly connected to the outside of the water suction pipe. A lead screw is fixedly connected to the outside of the output end of the driver. The end of the lead screw away from the driver is rotatably connected to the guide rail.

[0014] Preferably, a movable plate is threadedly connected to the outer side of the lead screw, an extension plate is fixedly connected to the top of the movable plate, and outer connecting rings are symmetrically connected to both ends of the extension plate.

[0015] Preferably, an inner sliding plate is fixedly connected to the bottom of the movable plate, the inner sliding plate is slidably adapted to the inside of the water suction pipe, the end of the inner sliding plate away from the movable plate is pressed and adapted to an inclined block, the inclined block is inserted into the inside of the water suction pipe and extends to the outside, the top of the inclined block is pressed and adapted to a sealing ring, and the top of the sealing ring is fixedly connected to a slip ring.

[0016] Preferably, a limiting disk and an inner rail are fixedly connected to the inner side of the sleeve, the inner rail is slidably adapted to the slip ring, and a sealing ring is squeezed and adapted to the outer side of the sealing ring, and the sealing ring is fixedly connected to the inner side of the sleeve.

[0017] Preferably, a fixed tube is fixedly installed inside the cavity plate, a support shaft is fixedly connected to the inner side of the fixed tube, an uneven turntable is rotatably connected to the outer side of the support shaft, a baffle is provided on the side of the uneven turntable, the baffle is fixedly connected to the inner side of the fixed tube, and a one-way component is provided on the side of the fixed tube, the one-way component is fixedly installed inside the pump casing.

[0018] Preferably, the one-way component includes a support block, which is fixedly connected to the inner side of the pump housing, and a spring buffer rod is fixedly connected to the outer side of the support block. A one-way blocking disc is fixedly connected to the end of the spring buffer rod away from the support block.

[0019] Preferably, the pressure relief mechanism includes a flange, which is fixedly installed on the outside of the pump casing. An inner retaining ring is fixedly connected to the inside of the flange, and a first limiting strip is fixedly connected to the outside of the flange. A rotating shaft is fixedly connected to the center of the inside of the flange, and a pressure relief disc is rotatably connected to the outside of the rotating shaft.

[0020] Preferably, a sealing pad is fixedly connected to the inner side of the pressure relief plate, the top of the sealing pad is squeezed and adapted to the inner solid ring, a second limiting strip is squeezed and adapted to the outer side of the pressure relief plate, and a horizontal rail is slidably adapted to both ends of the second limiting strip. The horizontal rail is fixedly connected to the outer side of the flange, and a return spring is fixedly connected to the inside of the horizontal rail. The end of the return spring away from the horizontal rail is fixedly connected to the second limiting strip.

[0021] Preferably, the adjusting assembly includes a second bearing, which is press-fitted to the outside of the coupling shaft. A sliding rod is fixedly connected to the outside of the second bearing. Half rings are symmetrically connected to both ends of the sliding rod. A coupling is slidably fitted to the outside of the sliding rod. A third bearing is fixedly connected inside the coupling. A motor is press-fitted to the inside of the third bearing. The bottom of the motor is fixedly connected to a support plate. A telescopic rod is fixedly connected to the outer end of the motor output end. The end of the telescopic rod away from the motor is fixedly connected to the coupling shaft.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The unevenly stressed turntable rotates counterclockwise via the support shaft. The length of the support shaft to the bottom of the unevenly stressed turntable is longer than the length of the support shaft to the top of the unevenly stressed turntable. At the same time, a baffle is set on the right side of the unevenly stressed turntable to ensure that the unevenly stressed turntable can only rotate clockwise. Then, the water in the right half of the pump casing will enter the left half of the pump casing through the fixed pipe. The above operation is repeated until the air inside the pump casing is completely expelled.

[0024] 2. The contact surface between the sealing ring and the inclined block is curved. Therefore, the sealing ring under pressure will move outward along the inner rail through the slip ring, so that the outer side of the sealing ring will be squeezed and matched with the sealing ring. This will increase the stability and connection between the sealing ring and the water pipe, while also increasing the sealing performance and reducing the impact of water pressure on the sealing ring.

[0025] 3. Before the water flowing in the suction pipe enters the pump casing, it impacts the one-way plug. Then, the spring buffer rod connected to the inside of the one-way plug stretches, and the part that originally sealed the pump casing and the sleeve opens, thus allowing the water to flow into the pump casing in one direction, while the water in the pump casing cannot flow back into the suction pipe.

[0026] 4. As the semi-open impeller moves toward the interior of the water seal component, the blades on the semi-open impeller will get closer and closer to the vertical surface where the control block is located. Therefore, as the semi-open impeller rotates, some of the centrifugal water flow will hit the control block, thereby reducing the flow rate and velocity of the water flowing out of the outlet pipe. Attached Figure Description

[0027] Figure 1 is a schematic diagram of the external structure of a horizontal self-priming centrifugal pump according to the present invention.

[0028] Figure 2 is a schematic cross-sectional view of the overall structure of the present invention.

[0029] Figure 3 is a schematic diagram of the water absorption mechanism of the present invention.

[0030] Figure 4 is a schematic diagram of the full cross-section of the water absorption mechanism of the present invention.

[0031] Figure 5 is an enlarged cross-sectional view of some components of the water absorption mechanism of the present invention.

[0032] Figure 6 is a cross-sectional schematic diagram of the water absorption mechanism of the present invention.

[0033] Figure 7 is an enlarged structural schematic diagram of point A in Figure 6 of this invention.

[0034] Figure 8 is a cross-sectional view of the centrifuge mechanism of the present invention.

[0035] Figure 9 is an enlarged structural schematic diagram of point B in Figure 8 of the present invention.

[0036] Figure 10 is a schematic diagram of the full cross-sectional structure of the unidirectional component of the present invention.

[0037] Figure 11 is a schematic diagram of the full cross-section of the pressure relief mechanism of the present invention.

[0038] Figure 12 is a cross-sectional view of the centrifuge assembly of the present invention.

[0039] Figure 13 is an enlarged structural schematic diagram of some components of the centrifugal assembly of the present invention.

[0040] Figure 14 is a cross-sectional view of the adjustment component of the present invention.

[0041] In the diagram: 1. Support plate; 2. Pump casing; 3. Suction mechanism; 4. Pressure relief mechanism; 5. Centrifugal mechanism; 6. Outlet pipe; 31. Suction pipe; 32. Sleeve; 33. Locking element; 34. Rail; 35. Driver; 36. Lead screw; 37. Moving plate; 38. Extension plate; 39. Outer connecting ring; 30. Inner moving plate; 301. Inclined block; 302. Sealing ring; 303. Slip ring; 304. Sealing ring; 305. Limiting plate; 306. Inner rail; 51. One-way assembly; 52. Dividing plate; 53. Centrifugal assembly; 54. Fixed pipe; 55. Support shaft; 56. Uneven turntable; 57. Stop bar; 511. Support block; 51 2. Spring buffer support rod; 513. One-way blocking disc; 41. Flange; 42. Inner retaining ring; 43. No. 1 limit bar; 44. Rotating shaft; 45. Pressure relief disc; 46. Sealing gasket; 47. Horizontal rail; 48. No. 2 limit bar; 49. Return spring; 531. Water seal component; 532. Polished rod; 533. Inner locking block; 534. No. 1 bearing; 535. Semi-open impeller; 536. Coupling; 537. Adjustment component; 538. Control block; 5371. No. 2 bearing; 5372. Sliding rod; 5373. Coupling; 5374. Half ring; 5375. No. 3 bearing; 5376. Motor; 5377. Telescopic rod. Detailed Implementation

[0042] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. It should be understood that the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0043] Please refer to Figures 1 to 14. The present invention provides a technical solution: as shown in Figures 1, 2, 3, 4, 5, 6 and 7, it includes a support plate 1, which is used to support the overall equipment.

[0044] The water suction mechanism 3 is used to handle the overflow of some water when water is introduced;

[0045] Pressure relief mechanism 4 is used to release water when the water pressure inside the pump is too high.

[0046] Centrifugal mechanism 5, which is used to rotate the water flow and cause the water flow to flow outward by centrifugal force;

[0047] The top of the support plate 1 is fixedly connected to the pump casing 2, the top of the pump casing 2 is fixedly connected to the water outlet pipe 6, the water suction mechanism 3 and the pressure relief mechanism 4 are both fixedly installed on the outside of the pump casing 2, the centrifugal mechanism 5 is set inside the pump casing 2, and the bottom of the centrifugal mechanism 5 is fixedly connected to the support plate 1.

[0048] The suction mechanism 3 includes a sleeve 32, with a locking element 33 on the outside of the sleeve 32. The sleeve 32 is fixedly installed on the outside of the pump housing 2 by the locking element 33. A suction pipe 31 is provided inside the sleeve 32. A rail 34 and a driver 35 are fixedly connected to the outside of the suction pipe 31. A lead screw 36 is fixedly connected to the outside of the output end of the driver 35. The end of the lead screw 36 away from the driver 35 is rotatably connected to the rail 34. A moving plate 37 is threadedly connected to the outside of the lead screw 36. An extension plate 38 is fixedly connected to the top of the moving plate 37. External connecting rings 39 are symmetrically connected to both ends of the extension plate 38. The bottom of the moving plate 37... An inner sliding plate 30 is fixedly connected to the sleeve 32. The inner sliding plate 30 is slidably adapted to the inside of the suction pipe 31. An inclined block 301 is pressed and adapted to the end of the inner sliding plate 30 away from the moving plate 37. The inclined block 301 is inserted into the inside of the suction pipe 31 and extends to the outside. A sealing ring 302 is pressed and adapted to the top of the inclined block 301. A slip ring 303 is fixedly connected to the top of the sealing ring 302. A limit plate 305 and an inner rail 306 are fixedly connected to the inside of the sleeve 32. The inside of the inner rail 306 is slidably adapted to the slip ring 303. A sealing ring 304 is pressed and adapted to the outside of the sealing ring 302. The sealing ring 304 is fixedly connected to the sleeve 32. Inside the pump casing 2, before venting the pump, the suction pipe 31 needs to be inserted into the sleeve 32 along the sealing ring 304 and limited by the limiting plate 305. The sealing ring 304 prevents water from overflowing. Then, the driver 35 is started, causing the lead screw 36 connected to it to rotate clockwise. The moving plate 37, which is threaded onto the outside of the lead screw 36, moves along the rail 34 toward the driver 35. Then, the inner moving piece 30, which is fixedly connected to the bottom of the moving plate 37, moves inward along the inner cavity of the suction pipe 31 and presses the inclined block 301 upward. The contact surfaces between the inner moving plate 30 and the inclined block 301 are both inclined surfaces. Therefore, the inclined block 301, which is squeezed and moves upward, will squeeze the sealing ring 302. The contact surface between the sealing ring 302 and the inclined block 301 is curved. Therefore, the sealed ring 302, which is squeezed, will move outward along the inner rail 306 through the slip ring 303. Finally, the outer side of the sealing ring 302 will be squeezed and matched with the sealing ring 304, thereby increasing the stability and connection between the sealing ring 304 and the water suction pipe 31. At the same time, it also increases the sealing performance and reduces the impact of water pressure on the sealing ring 304.

[0049] The one-way component 51 includes a support block 511, which is fixedly connected to the inner side of the pump housing 2. A spring buffer rod 512 is fixedly connected to the outer side of the support block 511, and a one-way blocking disc 513 is fixedly connected to the end of the spring buffer rod 512 away from the support block 511. Before the water flowing in the suction pipe 31 enters the pump housing 2, it impacts the one-way blocking disc 513. Subsequently, the spring inside the spring buffer rod 512 connected to the inner side of the one-way blocking disc 513 will be stretched, and the part that originally sealed the pump housing 2 and the sleeve 32 will be opened, thereby allowing water to flow into the pump housing 2 in one direction, while the water in the pump housing 2 cannot flow back into the suction pipe 31.

[0050] As shown in Figures 8, 9, 10, and 11, the centrifugal mechanism 5 includes a chamber plate 52, which is fixedly connected to the inside of the pump casing 2. A centrifugal assembly 53 is fixedly installed on the outside of the chamber plate 52. A fixed pipe 54 is fixedly installed inside the chamber plate 52. A support shaft 55 is fixedly connected to the inside of the fixed pipe 54. An uneven rotating disk 56 is rotatably connected to the outside of the support shaft 55. A baffle 57 is provided on the side of the uneven rotating disk 56 and is fixedly connected to the inside of the fixed pipe 54. A one-way component 51 is provided on the side of pipe 54. The one-way component 51 is fixedly installed inside the pump casing 2. By pre-leaving some water inside the pump casing 2 and then starting the motor 5376, the connecting shaft 536 connected to it via the telescopic rod 5377 will rotate inside the pump casing 2. At the same time, the semi-open impeller 535 connected to the other end of the connecting shaft 536 will rotate clockwise. As the semi-open impeller 535 rotates clockwise inside the water seal component 531, the water pre-leaked inside the pump casing 2... Water will generate centrifugal force and be thrown outwards. Simultaneously, water in the left half of the pump casing 2 will be drawn into the right half of the cavity through the semi-open impeller 535. The dividing plate 52 divides the inner cavity of the pump casing 2 into left and right parts. Air trapped in the right half of the pump casing 2 will be pressurized and discharged outwards through the outlet pipe 6. As the water flow rises in the right half of the pump casing 2 and is centrifugally pushed outwards, the water will impact the right half of the uneven rotating disc 56, subsequently... The uneven force turntable 56 will rotate counterclockwise through the support shaft 55. The length of the support shaft 55 and the bottom of the uneven force turntable 56 is longer than the length of the support shaft 55 and the top of the uneven force turntable 56. At the same time, a baffle 57 is provided on the right side of the uneven force turntable 56 so that the uneven force turntable 56 can only rotate clockwise. Then, the water in the right half of the pump housing 2 will enter the left half of the pump housing 2 through the fixed pipe 54. The above operation is repeated until the air inside the pump housing 2 is completely discharged.

[0051] The pressure relief mechanism 4 includes a flange 41, which is fixedly installed on the outside of the pump casing 2. An inner retaining ring 42 is fixedly connected to the inside of the flange 41. A first limiting strip 43 is fixedly connected to the outside of the flange 41. A rotating shaft 44 is fixedly connected to the center of the inside of the flange 41. A pressure relief plate 45 is rotatably connected to the outside of the rotating shaft 44. A sealing gasket 46 is fixedly connected to the inside of the pressure relief plate 45. The top of the sealing gasket 46 is pressed and fitted with the inner retaining ring 42. A second limiting strip 48 is pressed and fitted to the outside of the pressure relief plate 45. Both ends of the second limiting strip 48 are slidably fitted with a horizontal rail 47. The horizontal rail 47 is fixedly connected to the outside of the flange 41. A return spring 49 is fixedly connected inside the horizontal rail 47. The end of the return spring 49 away from the horizontal rail 47 is... The second limiting strip 48 is fixedly connected. Then, when the water pressure in the left half of the pump housing 2 is too high, the water flow will squeeze the lower half of the pressure relief plate 45 to the left. Then, the pressure relief plate 45 will deflect counterclockwise through the rotating shaft 44. At the same time, it will also squeeze the second limiting strip 48 outward. Subsequently, the return spring 49 connected to the other side of the second limiting strip 48 will be compressed, causing the part of the bottom of the pressure relief plate 45 that is in contact with the pump housing 2 to open a gap, thereby allowing the accumulated water flow to be depressurized. In addition, as the pressure relief plate 45 deflects counterclockwise, the sealing pad 46 fixedly connected to its inner upper side will move against the inner solid ring 42. The sealing pad 46 is expandable and waterproof.

[0052] As shown in Figures 12, 13, and 14, the centrifugal assembly 53 includes a water seal component 531. An adjustment block 538 is fixedly connected to the inner side of the water seal component 531. The water seal component 531 is fixedly connected to the outer side of the chamber plate 52. A smooth rod 532 is fixedly connected to the inner side of the water seal component 531. An inner locking block 533 is fixedly connected to the end of the smooth rod 532 away from the water seal component 531. The inner locking block 533 is fixedly connected to the inner side of the water seal component 531. A first bearing 534 is slidably adapted to the outer side of the smooth rod 532. A semi-open impeller 535 is squeezed and adapted to the inner side of the first bearing 534. A connecting shaft 536 is fixedly connected to the inner side of the semi-open impeller 535. The connecting shaft 536 is rotatably connected to the outer side of the water seal component 531 and the pump casing 2, respectively. An adjustment component 537 is fixedly connected to the end of the connecting shaft 536 away from the semi-open impeller 535.

[0053] The adjusting assembly 537 includes a second bearing 5371, which is pressed and fitted onto the outside of the connecting shaft 536. A sliding rod 5372 is fixedly connected to the outside of the second bearing 5371. Half rings 5374 are symmetrically connected to both ends of the sliding rod 5372. A coupling 5373 is slidably fitted onto the outside of the sliding rod 5372. A third bearing 5375 is fixedly connected inside the coupling 5373. A motor 5376 is pressed and fitted onto the inside of the third bearing 5375. The bottom of the motor 5376 is fixedly connected to the support plate 1. A telescopic rod 5377 is fixedly connected to the outer end of the output end of the motor 5376. The end of the telescopic rod 5377 away from the motor 5376 is fixedly connected to the connecting shaft 536. By manually moving the sliding rod 5372 outward, it connects to the bottom of the motor 5376. The second bearing 5371 will move outward along with the connecting shaft 536. At the same time, the telescopic rod 5377, which is fixedly connected to the outer end of the connecting shaft 536, will retract. The semi-open impeller 535, which is fixedly connected to the other end of the connecting shaft 536, will move along with the first bearing 534. Then, the non-rotating part of the surface of the first bearing 534 will move along the smooth rod 532. As the semi-open impeller 535 moves towards the inside of the water seal component 531, the blades on the semi-open impeller 535 will get closer and closer to the vertical surface where the control block 538 is located. Therefore, as the semi-open impeller 535 rotates, some of the centrifugal water flow will hit the control block 538, thereby reducing the flow rate and velocity of the water flowing out of the outlet pipe 6.

[0054] In use, the invention works as follows: First, some water is left inside the pump casing 2. Then, the motor 5376 is started, causing the connecting shaft 536, which is connected to the motor via the telescopic rod 5377, to rotate inside the pump casing 2. Simultaneously, the semi-open impeller 535, connected to the other end of the connecting shaft 536, rotates clockwise. As the semi-open impeller 535 rotates clockwise inside the water seal component 531, the water left inside the pump casing 2 generates centrifugal force and is thrown outwards. At the same time, water in the left half of the pump casing 2 is drawn in through the semi-open impeller 535. Inside the right half of the cavity, and immediately inside the right half of the pump housing 2, the air trapped inside will be compressed and discharged outward through the outlet pipe 6. As the water flow in the right half of the pump housing 2 rises and is centrifugally flowed outward, the water flow will impact the right half of the uneven rotating disk 56. Subsequently, the uneven rotating disk 56, under force, will rotate counterclockwise through the support shaft 55. Then, the water in the right half of the pump housing 2 will enter the left half of the pump housing 2 through the fixed pipe 54. The above operation is repeated until the air inside the pump housing 2 is completely discharged.

[0055] Then, the suction pipe 31 is placed into the water tank. Because the air inside the pump casing 2 has been purged, the air pressure inside the pump casing 2 will be much lower than the outside air pressure. Then, the water inside the water tank will be forced into the pump casing 2 along the suction pipe 31. Then, through the rotation of the semi-open impeller 535, the water will generate centrifugal motion and flow out along the outlet pipe 6.

[0056] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made by those skilled in the art based on the above concepts without creative effort shall fall within the scope of protection of the present invention.

Claims

1. A horizontal self-priming centrifugal pump, characterized in that, include: Support plate (1), which is used to support the overall equipment; water suction mechanism (3), which is used to handle the overflow of some water when water enters; pressure relief mechanism (4), which is used to release water when the water pressure inside the pump is too high; centrifugal mechanism (5), which is used to rotate the water flow and make the water flow outward by generating centrifugal force; the top of the support plate (1) is fixedly connected to the pump casing (2), the top of the pump casing (2) is fixedly connected to the water outlet pipe (6), the water suction mechanism (3) and the pressure relief mechanism (4) are both fixedly installed on the outside of the pump casing (2), the centrifugal mechanism (5) is set inside the pump casing (2), and the centrifugal machine The bottom of the structure (5) is fixedly connected to the support plate (1); wherein the centrifugal mechanism (5) includes a chamber plate (52), the chamber plate (52) is fixedly connected to the inside of the pump casing (2), and a centrifugal assembly (53) is fixedly installed on the outside of the chamber plate (52); the centrifugal assembly (53) includes a water seal component (531), an adjustment block (538) is fixedly connected to the inside of the water seal component (531), the water seal component (531) is fixedly connected to the outside of the chamber plate (52), a smooth rod (532) is fixedly connected to the inside of the water seal component (531), and an inner locking block (533) is fixedly connected to the end of the smooth rod (532) away from the water seal component (531). 3) Fixedly connected to the inner side of the water seal component (531), the outer side of the polished rod (532) is slidably fitted with a first bearing (534), the inner side of the first bearing (534) is pressed and fitted with a semi-open impeller (535), the inner side of the semi-open impeller (535) is fixedly connected with a connecting shaft (536), the connecting shaft (536) is rotatably connected to the outer side of the water seal component (531) and the pump casing (2), and the end of the connecting shaft (536) away from the semi-open impeller (535) is fixedly connected with an adjusting component (537); the adjusting component (537) includes a second bearing (5371), the second bearing (5371) is pressed and fitted to the outer side of the connecting shaft (536), the second bearing (5371) is fixedly connected to the inner side of the water seal component (531) and the pump casing (2), the second bearing (5371) is rotatably connected to the outer side of the water seal component (531) and the pump casing (2), the second bearing (5371) is fixedly connected to the inner side of the water seal component (531) and the pump casing (2), the second bearing (5371) is rotatably connected to the outer side of the pump casing (536), the second bearing (5371) is rotatably connected to the outer side of the water seal component (531) and the pump casing (2 ... A sliding rod (5372) is fixedly connected to the outer side of bearing No. 1 (5371). Half rings (5374) are symmetrically connected to both ends of the sliding rod (5372). A coupling (5373) is slidably adapted to the outer side of the sliding rod (5372). Bearing No. 3 (5375) is fixedly connected inside the coupling (5373). A motor (5376) is pressed and adapted to the inner side of bearing No. 3 (5375). The bottom of the motor (5376) is fixedly connected to the support plate (1). A telescopic rod (5377) is fixedly connected to the outer end of the output end of the motor (5376). The end of the telescopic rod (5377) away from the motor (5376) is fixedly connected to the coupling (536).

2. A horizontal self-priming centrifugal pump according to claim 1, characterized in that: The water suction mechanism (3) includes a sleeve (32), and a locking member (33) is provided on the outside of the sleeve (32). The sleeve (32) is fixedly installed on the outside of the pump housing (2) by the locking member (33). A water suction pipe (31) is provided inside the sleeve (32). A rail (34) and a driver (35) are fixedly connected to the outside of the water suction pipe (31). A lead screw (36) is fixedly connected to the outside of the output end of the driver (35). The end of the lead screw (36) away from the driver (35) is rotatably connected to the rail (34).

3. A horizontal self-priming centrifugal pump according to claim 2, characterized in that: The outer side of the lead screw (36) is threaded with a movable plate (37), the top of the movable plate (37) is fixedly connected with an extension plate (38), and the two ends of the extension plate (38) are symmetrically connected with outer connecting rings (39).

4. A horizontal self-priming centrifugal pump according to claim 3, characterized in that: The bottom of the movable plate (37) is fixedly connected to an inner sliding piece (30), which is slidably adapted to the inside of the water suction pipe (31). The end of the inner sliding piece (30) away from the movable plate (37) is pressed and adapted to a inclined block (301). The inclined block (301) is inserted into the inside of the water suction pipe (31) and extends to the outside. The top of the inclined block (301) is pressed and adapted to a sealing ring (302), and the top of the sealing ring (302) is fixedly connected to a slip ring (303).

5. A horizontal self-priming centrifugal pump according to claim 4, characterized in that: The inner side of the sleeve (32) is fixedly connected to the limiting plate (305) and the inner rail (306). The inner rail (306) on the side away from the sleeve (32) is slidably adapted to the slip ring (303). The outer side of the sealing ring (302) is squeezed and adapted to the sealing ring (304). The sealing ring (304) is fixedly connected to the inner side of the sleeve (32).

6. A horizontal self-priming centrifugal pump according to claim 1, characterized in that: A fixed tube (54) is fixedly installed inside the cavity plate (52). A support shaft (55) is fixedly connected to the inner side of the fixed tube (54). An uneven turntable (56) is rotatably connected to the outer side of the support shaft (55). A baffle (57) is provided on the side of the uneven turntable (56). The baffle (57) is fixedly connected to the inner side of the fixed tube (54). A one-way component (51) is provided on the side of the fixed tube (54). The one-way component (51) is fixedly installed inside the pump casing (2).

7. A horizontal self-priming centrifugal pump according to claim 6, characterized in that: The one-way component (51) includes a support block (511), which is fixedly connected to the inner side of the pump housing (2). A spring buffer rod (512) is fixedly connected to the outer side of the support block (511), and a one-way blocking disc (513) is fixedly connected to the end of the spring buffer rod (512) away from the support block (511).

8. A horizontal self-priming centrifugal pump according to claim 1, characterized in that: The pressure relief mechanism (4) includes a flange (41), which is fixedly installed on the outside of the pump casing (2). An inner retaining ring (42) is fixedly connected to the inside of the flange (41). A first limiting strip (43) is fixedly connected to the outside of the flange (41). A rotating shaft (44) is fixedly connected to the center of the inside of the flange (41). A pressure relief plate (45) is rotatably connected to the outside of the rotating shaft (44).

9. A horizontal self-priming centrifugal pump according to claim 8, characterized in that: A sealing pad (46) is fixedly connected to the inner side of the pressure relief plate (45). The top of the sealing pad (46) is squeezed and adapted to the inner solid ring (42). A second limiting strip (48) is squeezed and adapted to the outer side of the pressure relief plate (45). Both ends of the second limiting strip (48) are slidably adapted to the horizontal rail (47). The horizontal rail (47) is fixedly connected to the outer side of the flange (41). A return spring (49) is fixedly connected inside the horizontal rail (47). The end of the return spring (49) away from the horizontal rail (47) is fixedly connected to the second limiting strip (48).

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