An energy-saving stainless steel vertical multistage pump

Abstract

This invention discloses an energy-saving stainless steel vertical multistage pump, relating to the field of multistage pump technology. This invention adopts pure mechanical linkage with zero additional energy consumption (extreme energy saving): the device innovatively uses the "water pressure difference generated by filter clogging" as the sole power source for cleaning and sewage discharge, and combines the first and second guide grooves of the spiral to convert linear motion into rotational motion. No additional motors or sensors are required throughout the process. This not only achieves true "energy-saving output" but also completely eliminates the risk of short circuits or malfunctions caused by adding electrical equipment, making the operation extremely stable and reliable.

Description

Technical Field

[0001] This invention relates to the field of multistage pump technology, and in particular to an energy-saving stainless steel vertical multistage pump. Background Technology

[0002] The stainless steel vertical multistage pump is a vertical, single-suction, multi-stage centrifugal pump. It features a vertical design with the motor located above the pump body and multiple impellers connected in series internally. High-efficiency delivery is achieved through staged pressurization. It is primarily used for conveying clean water or similar liquids and is widely applicable in urban water supply, centralized heating systems, and the food and pharmaceutical industries.

[0003] Vertical stainless steel multistage centrifugal pumps are made of stainless steel, offering strong corrosion resistance and are specifically designed for conveying corrosive liquids. Their compact vertical structure requires minimal space, making them ideal for installation in confined spaces. During operation, the pump's multistage pressurization design rapidly elevates the liquid to the required height, meeting high-efficiency conveying needs.

[0004] During operation, although the external filtration device performs initial interception, fine impurities remaining in the water can still enter the pump body. On the one hand, these impurities exacerbate the mechanical friction between the impeller and the pump body; on the other hand, the internal filtration device is prone to clogging when intercepting fine impurities, leading to a significant increase in system operating resistance. The combination of these two factors forces the motor to output greater power to overcome the resistance, thus significantly increasing the motor's operating load and energy consumption.

[0005] To address the aforementioned issues, there is an urgent need for innovative designs based on existing multistage pumps. Summary of the Invention

[0006] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. The present invention provides an energy-saving stainless steel vertical multistage pump to solve the problem that existing energy-saving stainless steel vertical multistage pumps, due to their simplistic output, result in large regional temperature differences that negatively impact processing efficiency.

[0007] The present invention adopts the following technical solution: an energy-saving stainless steel vertical multistage pump, comprising a pump body, inlet and outlet located on both sides of the outer wall of the pump body, an impeller assembly located inside the pump body, and a filter assembly located inside the impeller assembly, and further comprising... Cleaning components with water pressure sensing function are installed on both sides of the filter assembly; The cleaning assembly includes a first guide groove, a slide bar that can move up and down inside the first guide groove, a second guide groove, and a first movable plate and a second movable plate that slide inside the second guide groove. When the slide bar is not in use, multiple first and second movable plates are located at the upper and lower ends of the fixed frame, and the first and second movable plates are in the unfolded state. When the slide bar is in use, both the first and second movable plates are in the middle position of the fixed frame, and both the first and second movable plates are in a retracted state. One end of the first movable plate is equipped with a sewage discharge mechanism with a sealing and recycling function; The sewage discharge mechanism includes a first movable groove with a pressing function, a push plate that slides inside the first movable groove, and a rotating plate with automatic sewage discharge function. When the sliding plate is not moving, the push plate is on the outermost side inside the first moving groove, and the two rotating plates are in a sealed state; When the sliding plate moves, it causes the push plate to move inward inside the first moving groove. The push plate is located at the innermost part of the first moving groove, and the two rotating plates are in the open state.

[0008] Preferably, a drain valve is provided between the two inlets and outlets, and the drain valve is installed on the outer wall of the pump body; The impeller assembly includes a guide member, a connecting plate, and an impeller body. The impeller body is located inside the guide member, and a connecting plate is installed on one side of the guide member. A water guide hole is located in the middle of the connecting plate. The impeller body is located inside the guide member. The middle position of the guide member is connected to the outer wall of the pump shaft through a bearing. The middle positions of the impeller body and the water guide hole are both located on the outer wall of the pump shaft. The impeller body is positioned at its center, corresponding to the outer wall of the pump shaft.

[0009] Preferably, the filter assembly includes a fixing ring located in the middle of the impeller assembly, multiple fixing brackets evenly distributed on the outside of the fixing ring, and a filter screen installed on the inside of the fixing brackets. The inner side of the water guide hole is provided with a fixing ring, and multiple fixing brackets are installed on the outside of the fixing ring. The lower part of the fixing bracket is connected to the inner wall of the connecting plate, and the filter screen is installed on the inside of the fixing bracket. The top of the fixing bracket is provided with multiple first fixing grooves, and the bottom of the fixing bracket is provided with multiple second fixing grooves. The first fixing groove and the second fixing groove are both located at the four corners of the fixing frame. The first fixing groove is located on the outside of the spring and above the fixing plate. The second fixing groove is located on the outside of the cylinder and below the fixing plate. The first fixing groove and the second fixing groove are integrated with the fixing frame. The water guide hole is octagonal, the fixing bracket is trapezoidal, the top of the fixing ring is on the same horizontal plane as the top of the connecting plate, and multiple fixing brackets are distributed in an equidistant circle with the center of the fixing ring as the center.

[0010] Preferably, the cleaning assembly further includes a storage tank, a cylinder, and connecting rods for storage. The fixing frame has two storage tanks on both sides, and the cylinder is provided inside the storage tank. Connecting rods are installed on both sides of the cylinder. The outer wall of the connecting rod is connected to the inner wall of the fixing frame through a bearing. The outer connecting rod passes through the bearing and is connected to a cylinder. The outer wall of the cylinder has a first guide groove on both sides. The cylinder is located inside the water pressure groove, which is located inside the fixing frame. The outer wall of the cylinder has a second guide groove on both sides. The inner side of the first guide groove is provided with a slide rod, the upper part of which is installed on both sides of the bottom of the fixed plate. The outer wall of the fixed plate is provided with a rubber plug, and the upper part of the fixed plate is connected to the inner wall of the fixed frame by a spring.

[0011] Preferably, the middle positions of the cylinder, the connecting rod, the cylinder, and the fixing plate are all on the same horizontal line. The first guide groove and the second guide groove are both spiral in shape and are both clockwise. The connecting rod and the bearing are rotatably connected. The first guide groove and the second guide groove are both arranged in a complete single-turn spiral shape, and the pitch of the second guide groove is greater than the pitch of the first guide groove. The first guide groove and the slide rod are slidably connected, and the fixing plate and the rubber plug are tightly fitted together.

[0012] Preferably, the cleaning assembly further includes a sliding plate that can move up and down, a first movable plate and a second movable plate that can clean in all directions, a sliding plate provided on the inner side of the second guide groove, the upper sliding plate passing through the third movable groove and connected to the upper part of the second movable plate, a slider fixedly installed on the left side of the bottom of the second movable plate, the lower sliding plate passing through the third movable groove and connected to the lower part of the first movable plate, a sliding groove provided on the right side of the top of the first movable plate, and a push plate fixedly installed on the outer side of the lower sliding plate; The second guide groove is slidably connected to the sliding plate, the top of the first moving plate and the bottom of the second moving plate are tightly fitted together, and the groove and the slider are slidably connected.

[0013] Preferably, the first movable plate includes a baffle and a cleaning brush. The top of the first movable plate and the top of the second movable plate are both equipped with baffles. The inner side of the baffle is provided with a cleaning brush. The bottoms of the two cleaning brushes are respectively installed on the top of the first movable plate and the top of the second movable plate. The baffle is made of rubber, and the top of the baffle is on the same horizontal line as the top of the cleaning brush. The two first movable plates, the two baffles, and the second movable plate work together to form an accommodating space.

[0014] Preferably, the sewage discharge mechanism further includes a first movable trough, an outlet, and an inlet. The bottom of the fixed frame is provided with a first movable trough, the middle of the bottom of the fixed frame is provided with an outlet, the outer side of the outlet is provided with an inlet, the outer side of the first movable trough is provided with a second movable trough, the outer side of the inlet is provided with a connecting trough, the outer side of the connecting trough is provided with a first water passage, the inlet, the second movable trough, the connecting trough, and the first water passage are all located on the inner side of the connecting plate, the outer side of the first water passage is provided with a second water passage, the second water passage is located on the inner side of the guide member, and rotating plates are installed on both sides inside the inlet.

[0015] Preferably, the connecting groove is sloped, the push plate is slidably connected to the first moving groove and the second moving groove, and the outlet and the inlet are correspondingly arranged. The connecting plates are integrated with the water inlet, the second moving groove, the connecting groove and the first water outlet. The first moving groove is connected to the water outlet. The water inlet, the second moving groove, the connecting groove and the first water outlet are connected. The first water outlet and the second water outlet are correspondingly arranged. The second water outlet is connected to the inner cavity of the drain valve.

[0016] Preferably, the rotating plate includes a resettable torsion spring, a storage tank with sealing function, and a sealing gasket. Two rotating plates are installed on both sides inside the water inlet. A sealing gasket is installed on the outer wall of the rotating plate. The outer side of the rotating plate is connected to the inner wall of the storage tank through the torsion spring. The storage tank is installed on the inner side of the connecting plate. The outer wall of the rotating plate is tightly fitted to the outer wall of the water inlet. The rotating plate is in the shape of a triangular flag, and the outer side of the rotating plate is on the same horizontal line as the outer side of the second moving groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Pure mechanical linkage, zero additional energy consumption (ultimate energy saving): This device innovatively uses the "water pressure difference generated by filter clogging" as the sole power source for cleaning and sewage discharge. Combined with the first and second guide grooves of the spiral, it converts linear motion into rotational motion. No additional motors or sensors are required throughout the process. This not only achieves true "energy-saving output" but also completely eliminates the risk of short circuits or malfunctions caused by adding electrical equipment. The operation is extremely stable and reliable.

[0018] 2. Sealed cleaning to prevent secondary pollution: During the cleaning process, the first moving plate, the second moving plate and the rubber baffle work together to form a dynamic "sealed cleaning chamber". The scraped impurities and sewage are instantly wrapped in the sealed cavity, which effectively prevents impurities from re-entering the pump body with the water flow, avoids wear on the precision impeller assembly, and ensures the purity of the conveyed medium.

[0019] 3. Intelligent self-adaptation, extending equipment life: The device has the self-adaptive capability of "cleaning when clogged and stopping when cleaned", which can promptly remove tiny impurities on the surface of the filter screen, fundamentally avoiding the sharp increase in system operating resistance caused by filter screen clogging. This effectively prevents the main drive motor from doing unnecessary work, greatly reduces the operating burden of the motor, and thus significantly extends the overall service life of the water pump and motor. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial cross-sectional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the impeller assembly of the present invention; Figure 4 This is a partial exploded view of the impeller assembly of the present invention; Figure 5 This is a partial three-dimensional structural schematic diagram of the impeller assembly of the present invention; Figure 6 This is a three-dimensional structural diagram of the connecting plate of the present invention; Figure 7 This is a front view cross-sectional structural diagram of the connecting plate of the present invention; Figure 8 This is a three-dimensional structural diagram of the filter assembly of the present invention; Figure 9 This is a partial frontal cross-sectional view of the filter assembly of the present invention. Figure 10 For the present invention Figure 9 Enlarged structural diagram at point A in the middle; Figure 11 This is a side cross-sectional view of the filter assembly of the present invention. Figure 12 This is a three-dimensional structural diagram of the fixing frame of the present invention; Figure 13 This is a partial structural diagram of the cylindrical body of the present invention; Figure 14 This is a three-dimensional structural diagram of the slide bar of the present invention; Figure 15 This is a partial three-dimensional structural diagram of the first movable plate of the present invention; Figure 16 This is a partial three-dimensional structural diagram of the second movable plate of the present invention; Figure 17 This is a three-dimensional structural diagram of the present invention without the first movable plate. Figure 18 This is a partial cross-sectional view of the present invention without the use of a sliding rod; Figure 19 For the present invention Figure 18 Enlarged structural diagram at point A in the middle; Figure 20 This is a front cross-sectional view of the present invention without the use of a rotating plate; Figure 21 This is a three-dimensional structural diagram of the invention using the first movable plate; Figure 22 This is a partial cross-sectional structural diagram of the slide bar used in this invention; Figure 23 For the present invention Figure 22 Enlarged structural diagram at point A in the middle; Figure 24 This is a front cross-sectional view of the rotating plate used in this invention.

[0022] Figure label: 1. Pump body; 2. Inlet and outlet; 3. Drain valve; 4. Impeller assembly; 41. Guide vane; 42. Connecting plate; 43. Impeller body; 44. Water guide hole; 45. Pump shaft; 5. Filter assembly; 51. Fixing ring; 52. Fixing frame; 53. Filter screen; 54. First fixing groove; 55. Second fixing groove; 61. Storage tank; 62. Cylinder; 63. Connecting rod; 64. Cylindrical column; 65. Water pressure groove; 66. First guide groove; 67. Second guide groove; 71. Slide rod; 72. Fixing plate 73. Rubber stopper; 74. Spring; 81. Sliding plate; 82. First moving plate; 821. Baffle; 822. Cleaning brush; 83. Second moving plate; 84. Slide groove; 85. Slider; 86. Push plate; 87. Third moving groove; 91. First moving groove; 92. Outlet; 93. Inlet; 94. Second moving groove; 95. Connecting groove; 97. First water inlet; 98. Second water inlet; 99. Rotating plate; 991. Torsion spring; 992. Storage box; 993. Sealing gasket. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0025] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] The following is combined Figures 1 to 24 As shown, this embodiment of the invention provides an energy-saving stainless steel vertical multistage pump, including a pump body 1, inlet and outlet 2 located on both sides of the outer wall of the pump body 1, an impeller assembly 4 located inside the pump body 1, and a filter assembly 5 located inside the impeller assembly 4. It also includes... Cleaning components with water pressure sensing function are installed on both sides of the filter assembly 5; The cleaning assembly includes a first guide groove 66, a slide bar 71 that can move up and down inside the first guide groove 66, a second guide groove 67, and a first movable plate 82 and a second movable plate 83 that slide inside the second guide groove 67. When the slide bar 71 is not in use, multiple first movable plates 82 and second movable plates 83 are located at the upper and lower ends of the fixed frame 52, and the first movable plates 82 and second movable plates 83 are in the unfolded state. When the slide bar 71 is in use, the first moving plate 82 and the second moving plate 83 are both in the middle position of the fixed frame 52, and the first moving plate 82 and the second moving plate 83 are in the retracted state. One end of the first movable plate 82 is equipped with a sewage discharge mechanism with a sealing and recycling function; The sewage discharge mechanism includes a first movable groove 91 with a pressing function, a push plate 86 that slides inside the first movable groove 91, and a rotating plate 99 with automatic sewage discharge function. When the sliding plate 81 is not moving, the push plate 86 is on the outermost side inside the first moving groove 91, and the two rotating plates 99 are in a sealed state. When the sliding plate 81 moves, the push plate 86 moves inward inside the first moving groove 91. The push plate 86 is at the innermost side inside the first moving groove 91, and the two rotating plates 99 are in the open state.

[0029] As an optional embodiment, when the slide bar 71 moves downward to the bottom of the first guide groove 66, the first moving plate 82 and the second moving plate 83 simultaneously slide to the bottom of the second guide groove 67. At this time, the first moving plate 82 and the second moving plate 83 at both ends undergo relative displacement at the middle position of the fixing frame 52, and the whole exhibits a state of contraction towards the center. This contraction action allows the first moving plate 82 and the second moving plate 83 to adapt to different spacings inside the fixing frame 52, thereby achieving all-round, dead-angle-free cleaning of the outer wall of the filter screen 53.

[0030] A drain valve 3 is provided between the two inlets and outlets 2, and the drain valve 3 is installed on the outer wall of the pump body 1; The impeller assembly 4 includes a guide member 41, a connecting plate 42, and an impeller body 43. The impeller body 43 is located inside the guide member 41, and the connecting plate 42 is installed on one side of the guide member 41. A water guide hole 44 is located in the middle of the connecting plate 42. The impeller body 43 is located inside the guide member 41. The middle position of the guide member 41 is connected to the outer wall of the pump shaft 45 through a bearing. The middle positions of the impeller body 43 and the water guide hole 44 are both located on the outer wall of the pump shaft 45. The impeller body 43 is positioned at the middle position and is correspondingly positioned between the outer wall of the pump shaft 45.

[0031] The filter assembly 5 includes a fixing ring 51 located in the middle of the impeller assembly 4, multiple fixing brackets 52 evenly distributed on the outside of the fixing ring 51, and a filter screen 53 installed on the inside of the fixing brackets 52. The water guide hole 44 is provided with a fixing ring 51 on the inside, and multiple fixing brackets 52 are installed on the outside of the fixing ring 51. The bottom of the fixing brackets 52 is connected to the inner wall of the connecting plate 42. The filter screen 53 is installed on the inside of the fixing brackets 52. Multiple first fixing grooves 54 are provided on the top of the fixing brackets 52, and multiple second fixing grooves 55 are provided on the bottom of the fixing brackets 52. The first fixing groove 54 and the second fixing groove 55 are both located at the four corners of the fixing frame 52. The first fixing groove 54 is located on the outside of the spring 74 and above the fixing plate 72. The second fixing groove 55 is located on the outside of the cylinder 64 and below the fixing plate 72. The first fixing groove 54 and the second fixing groove 55 are integrated with the fixing frame 52. The water guide hole 44 is octagonal, the fixing bracket 52 is trapezoidal, the top of the fixing ring 51 is on the same horizontal plane as the top of the connecting plate 42, and multiple fixing brackets 52 are distributed in an equidistant circle with the center of the fixing ring 51 as the center.

[0032] As an optional embodiment, after the filter screen 53 is cleaned, the upper and lower water pressures return to balance. At this time, the spring 74 releases its elastic potential energy, pushing the slide rod 71 and the second guide groove 67 of the cleaning component to move in the opposite direction, causing the first moving plate 82 and the second moving plate 83 to unfold and reset to their initial state. The rotating plate 99 also recloses and seals under the action of the torsion spring 991. The entire cleaning and sewage discharge process requires no additional power, relying entirely on the water pressure difference and the mechanical spring 74 to achieve automated circulation, significantly reducing the operating load of the motor and the power consumption. When a thorough cleaning is required, simply open the drain valve 3 to discharge the temporarily stored impurities and the medium inside the device.

[0033] The cleaning assembly also includes a storage tank 61, a cylinder 62, and a connecting rod 63 for storage. The mounting bracket 52 has two storage tanks 61 on both sides. The cylinder 62 is located inside the storage tank 61. The connecting rod 63 is installed on both sides of the cylinder 62. The outer wall of the connecting rod 63 is connected to the inner wall of the mounting bracket 52 through a bearing. The outer connecting rod 63 passes through the bearing and is connected to the cylinder 64. The outer wall of the cylinder 64 has a first guide groove 66 on both sides. The cylinder 64 is located inside the water pressure tank 65. The water pressure tank 65 is located inside the mounting bracket 52. The outer wall of the cylinder 62 has a second guide groove 67 on both sides. The inner side of the first guide groove 66 is provided with a slide rod 71. The upper part of the slide rod 71 is installed on both sides of the bottom of the fixing plate 72. The outer wall of the fixing plate 72 is provided with a rubber plug 73. The upper part of the fixing plate 72 is connected to the inner wall of the fixing frame 52 by a spring 74.

[0034] As an optional embodiment, the rubber plug 73 is disposed in the water pressure groove 65, which tightly divides its internal space into two independent chambers. The rubber plug 73 and the groove wall form a seamless interference seal, which effectively blocks the fluid communication between the two chambers. Under this high sealing condition, the water pressure introduced into one chamber can act on the surface of the rubber plug 73 without loss, thereby smoothly and efficiently pushing the fixed plate 72 to produce axial displacement.

[0035] The middle positions of the cylinder 62, the connecting rod 63, the cylinder 64, and the fixing plate 72 are all on the same horizontal line. The first guide groove 66 and the second guide groove 67 are both spiral in shape and are both clockwise. The connecting rod 63 is rotatably connected to the bearing. The first guide groove 66 and the second guide groove 67 are both arranged in a complete single-turn spiral shape, and the pitch of the second guide groove 67 is greater than the pitch of the first guide groove 66. The first guide groove 66 and the slide rod 71 are slidably connected, and the fixing plate 72 and the rubber plug 73 are tightly fitted together.

[0036] As an optional embodiment, the first guide groove 66 and the second guide groove 67 are both arranged in a complete single-turn spiral shape. When the fixed plate 72 moves downward, it will drive the cylinder 64 and the cylindrical body 62 to rotate synchronously one revolution. Since the pitch of the second guide groove 67 is greater than that of the first guide groove 66, the sliding plate 81 can generate a larger axial displacement during the process of the cylinder 62 completing a single rotation, thereby moving accurately and quickly to the middle position of the fixed frame 52. When the device operates for a long time, causing impurities to accumulate and clog the surface of the filter screen 53, the water pressure below the filter screen 53 will be significantly higher than the water pressure above it. This pressure difference causes the water below to flow through the second fixing groove 55 at the bottom of the fixing frame 52 into the water pressure groove 65. The thrust of the water pressure acts on the rubber plug 73, causing the slide rod 71 to slide downward along the first guide groove 66. Since the first guide groove 66 is arranged in a clockwise spiral shape, the downward movement of the slide rod 71 will simultaneously drive the cylinder 64 and the connecting rod 63 to rotate within the bearing, thereby driving the cylinder 62 to rotate. This device innovatively utilizes the water pressure difference generated by filter clogging as the sole power source for cleaning and sewage discharge. Combined with the spiral first guide groove 66, it converts linear motion into rotational motion, eliminating the need for additional motors or sensors. This not only achieves true "energy-saving output" but also completely eliminates the risk of failure caused by adding electrical equipment.

[0037] The cleaning assembly also includes a sliding plate 81 that can move up and down, a first moving plate 82 and a second moving plate 83 that can be cleaned in all directions. The inner side of the second guide groove 67 is provided with a sliding plate 81. The upper sliding plate 81 passes through the third moving groove 87 and is connected to the upper part of the second moving plate 83. A slider 85 is fixedly installed on the left side of the bottom of the second moving plate 83. The lower sliding plate 81 passes through the third moving groove 87 and is connected to the lower part of the first moving plate 82. A sliding groove 84 is provided on the right side of the top of the first moving plate 82. A push plate 86 is fixedly installed on the outer side of the lower sliding plate 81. The second guide groove 67 is slidably connected to the sliding plate 81, the top of the first moving plate 82 and the bottom of the second moving plate 83 are tightly fitted together, and the slide groove 84 and the slider 85 are slidably connected.

[0038] The first movable plate 82 includes a baffle 821 and a cleaning brush 822. The top of the first movable plate 82 and the top of the second movable plate 83 are both equipped with baffles 821. The inner side of the baffle 821 is provided with a cleaning brush 822. The bottoms of the two cleaning brushes 822 are respectively installed on the top of the first movable plate 82 and the top of the second movable plate 83. The baffle 821 is made of rubber. The top of the baffle 821 is on the same horizontal line as the top of the cleaning brush 822. The two upper and lower first moving plates 82, the two upper and lower baffles 821 and the second moving plate 83 cooperate to form a receiving space.

[0039] As an optional embodiment, the rotation of the cylinder 62 is converted into linear motion through the spiral second guide groove 67 on its surface, driving the sliding plate 81 to slide inside. The sliding plate 81 drives the first moving plate 82 and the second moving plate 83 to retract towards the center position. During this process, the cleaning brush 822 at the top of the two plates scrapes away impurities from the outer wall of the filter screen 53 from all directions. At the same time, with the help of the rubber baffle 821, the scraped impurities and sewage are tightly wrapped in the sealed containment cavity formed by the first moving plate 82, the second moving plate 83 and the baffle 821, effectively preventing secondary pollution. During the cleaning process, the first moving plate 82, the second moving plate 83 and the rubber baffle 821 work together to form a dynamic "closed cleaning chamber". Impurities are wrapped inside the chamber the moment they are scraped off, preventing them from re-entering the pump body 1 with the water flow and greatly protecting the precision impeller assembly 4 from wear.

[0040] The sewage discharge mechanism also includes a first moving trough 91, an outlet 92, and an inlet 93. The bottom of the fixed frame 52 is provided with the first moving trough 91, the middle of the bottom of the fixed frame 52 is provided with the outlet 92, the outside of the outlet 92 is provided with the inlet 93, the outside of the first moving trough 91 is provided with the second moving trough 94, the outside of the inlet 93 is provided with the connecting trough 95, the outside of the connecting trough 95 is provided with the first water passage 97, the inlet 93, the second moving trough 94, the connecting trough 95 and the first water passage 97 are all located inside the connecting plate 42, the outside of the first water passage 97 is provided with the second water passage 98, the second water passage 98 is located inside the guide member 41, and rotating plates 99 are installed on both sides inside the inlet 93.

[0041] The connecting groove 95 is set with a slope, and the push plate 86 is slidably connected to the first moving groove 91 and the second moving groove 94. The outlet 92 and the inlet 93 are set accordingly. The connecting plate 42 is integrated with the inlet 93, the second moving groove 94, the connecting groove 95 and the first water outlet 97. The first moving groove 91 is connected to the outlet 92. The inlet 93, the second moving groove 94, the connecting groove 95 and the first water outlet 97 are connected. The first water outlet 97 and the second water outlet 98 are correspondingly connected. The second water outlet 98 is connected to the inner cavity of the drain valve 3.

[0042] As an optional embodiment, the inlet 93, the connecting groove 95 and other channels are highly integrated with the internal flow channel of the pump body 1, and the sewage outlet finally converges at the drain valve 3. During daily maintenance, only the drain valve 3 needs to be operated to complete the centralized discharge of impurities and sewage, which greatly simplifies the operation and maintenance process and reduces the cost of manual maintenance. The rotating plate 99 includes a resettable torsion spring 991, a storage tank 992 with sealing function, and a sealing gasket 993. Two rotating plates 99 are installed on both sides inside the water inlet 93. The outer wall of the rotating plate 99 is equipped with a sealing gasket 993. The outer side of the rotating plate 99 is connected to the inner wall of the storage tank 992 through the torsion spring 991. The storage tank 992 is installed on the inner side of the connecting plate 42. The outer wall of the rotating plate 99 is tightly fitted to the outer wall of the inlet 93. The rotating plate 99 is in the shape of a triangular flag, and the outer side of the rotating plate 99 is on the same horizontal line as the outer side of the second moving groove 94.

[0043] As an optional embodiment, when the rotating plate 99 rotates around the axis to open, its unique triangular flag-shaped profile can reserve sufficient water passage gap at the valve port, thereby effectively reducing flow resistance and allowing impurities and sewage to be discharged more smoothly and quickly. As the sliding plate 81 continues to move down to the innermost side of the second guide groove 67, the push plate 86 connected to its outer side simultaneously applies pressure to the rotating plate 99 inside the inlet 93. The rotating plate 99 overcomes the resistance of the torsion spring 991 and rotates around the axis, causing the originally sealed inlet 93 to open. At this time, the impurities and sewage in the containment cavity pass through the inlet 93, the connecting groove 95, the first water outlet 97 and the second water outlet 98 in sequence under the action of gravity and water flow, and finally flow into the inner cavity of the drain valve 3 for temporary storage. The device has an adaptive capability of "cleaning immediately when clogged and stopping immediately after cleaning", which promptly removes impurities from the filter screen 53, fundamentally solving the problem of a sharp increase in system resistance caused by the clogging of the filter screen 53, effectively reducing the operating burden of the motor, reducing ineffective energy consumption, and thus significantly extending the service life of the water pump and motor.

[0044] Working principle: In the initial state, the first water inlet 97 and the second water inlet 98 of the sewage discharge channel are filled with air to ensure the system is sealed. When the filter screen 53 is clogged due to the accumulation of impurities and a water pressure difference is generated, the high-pressure water flow pushes the rubber plug 73 and the slide rod 71 down the spiral first guide groove 66, converting linear motion into rotational motion, driving the cylinder 62 to rotate and causing the first moving plate 82 and the second moving plate 83 to retract towards the center. The cleaning brush 822 scrapes away the impurities on the filter screen, and the baffle 821 forms a sealed cavity to prevent secondary pollution.

[0045] As the slide bar 71 moves down to the bottom, the push plate 86 simultaneously opens the rotating plate 99, allowing impurities and wastewater to be quickly discharged into the second water inlet 98 for temporary storage through the sewage discharge channel. After cleaning is completed, the water pressure is restored, and the spring 74 pushes each component to automatically reset. This device cleverly utilizes the fluid pressure difference as the sole power source, with zero additional energy consumption throughout the process. It achieves extreme energy saving while adaptively reducing the load on the main motor. In daily operation, simply opening the drain valve 3 is sufficient to discharge the temporarily stored impurities and media, greatly simplifying the operation and maintenance process.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stainless steel vertical multi-stage pump with energy-saving output, comprising a pump body (1), an inlet and an outlet (2) arranged on both sides of the outer wall of the pump body (1), an impeller assembly (4) arranged inside the pump body (1), and a filter assembly (5) arranged inside the impeller assembly (4), characterized in that: Also includes Cleaning components with water pressure sensing function are installed on both sides of the filter assembly (5); The cleaning assembly includes a first guide groove (66), a slide bar (71) that can move up and down inside the first guide groove (66), a second guide groove (67), and a first movable plate (82) and a second movable plate (83) that slide inside the second guide groove (67). When the slide bar (71) is not in use, the multiple first movable plates (82) and second movable plates (83) at both ends are located at the upper and lower ends of the fixed frame (52), and the first movable plates (82) and second movable plates (83) are in the unfolded state; When the slide bar (71) is in use, the first moving plate (82) and the second moving plate (83) are both in the middle position of the fixed frame (52), and the first moving plate (82) and the second moving plate (83) are in the retracted state; One end of the first movable plate (82) is provided with a sewage discharge mechanism with a sealing and recycling function; The sewage discharge mechanism includes a first movable groove (91) with a pressing function, a push plate (86) that slides inside the first movable groove (91), and a rotating plate (99) with automatic sewage discharge. When the sliding plate (81) is not moving, the push plate (86) is on the outermost side inside the first moving groove (91), and the two rotating plates (99) are in a sealed state; When the sliding plate (81) moves, the push plate (86) moves inward inside the first moving groove (91). The push plate (86) is at the innermost side inside the first moving groove (91), and the two rotating plates (99) are in the open state.

2. The energy efficient output vertical multi-stage pump of stainless steel as claimed in claim 1, wherein: A drain valve (3) is provided between the two inlets and outlets (2), and the drain valve (3) is installed on the outer wall of the pump body (1); The impeller assembly (4) includes a guide member (41), a connecting plate (42), and an impeller body (43). The impeller body (43) is provided on the inner side of the guide member (41). The connecting plate (42) is installed on one side of the guide member (41). A water guide hole (44) is provided in the middle position of the connecting plate (42). The impeller body (43) is provided inside the guide member (41). The middle position of the guide member (41) is connected to the outer wall of the pump shaft (45) through a bearing. The middle positions of the impeller body (43) and the water guide hole (44) are both located on the outer wall of the pump shaft (45). The middle position of the impeller body (43) is correspondingly positioned between the outer wall of the pump shaft (45).

3. The energy efficient output vertical multi-stage pump of stainless steel as claimed in claim 2 wherein: The filter assembly (5) includes a fixing ring (51) located in the middle of the impeller assembly (4), multiple fixing brackets (52) evenly distributed on the outside of the fixing ring (51), and a filter screen (53) installed on the inside of the fixing brackets (52). The water guide hole (44) is provided with a fixing ring (51) on the inside. Multiple fixing brackets (52) are installed on the outside of the fixing ring (51). The bottom of the fixing bracket (52) is connected to the inner wall of the connecting plate (42). The filter screen (53) is installed on the inside of the fixing bracket (52). Multiple first fixing grooves (54) are provided on the top of the fixing bracket (52), and multiple second fixing grooves (55) are provided on the bottom of the fixing bracket (52). The first fixing groove (54) and the second fixing groove (55) are both located at the four corners of the fixing frame (52). The first fixing groove (54) is located on the outside of the spring (74) and above the fixing plate (72). The second fixing groove (55) is located on the outside of the cylinder (64) and below the fixing plate (72). The first fixing groove (54) and the second fixing groove (55) are integrated with the fixing frame (52). The water guide hole (44) is octagonal, the fixing bracket (52) is trapezoidal, the top of the fixing ring (51) is on the same horizontal plane as the top of the connecting plate (42), and multiple fixing brackets (52) are distributed in an equidistant circle with the center of the fixing ring (51) as the center.

4. The energy-saving stainless steel vertical multistage pump according to claim 3, characterized in that: The cleaning assembly also includes a storage tank (61), a cylinder (62), and a connecting rod (63) for storage. The fixing frame (52) has two storage tanks (61) on both sides. The cylinder (62) is provided inside the storage tank (61). The connecting rod (63) is installed on both sides of the cylinder (62). The outer wall of the connecting rod (63) is connected to the inner wall of the fixing frame (52) through a bearing. The outer connecting rod (63) is connected to the cylinder (64) through the bearing. The outer wall of the cylinder (64) has a first guide groove (66) on both sides. The cylinder (64) is located inside the water pressure groove (65). The water pressure groove (65) is located inside the fixing frame (52). The outer wall of the cylinder (62) has a second guide groove (67) on both sides. The first guide groove (66) has a slide rod (71) on its inner side. The slide rod (71) is installed on both sides of the bottom of the fixing plate (72). The outer wall of the fixing plate (72) is fitted with a rubber plug (73). The upper part of the fixing plate (72) is connected to the inner wall of the fixing frame (52) by a spring (74).

5. The energy-saving stainless steel vertical multistage pump according to claim 4, characterized in that: The middle positions of the cylinder (62), the connecting rod (63), the cylinder (64), and the fixing plate (72) are all on the same horizontal line. The first guide groove (66) and the second guide groove (67) are both spiral in shape and are both clockwise. The connecting rod (63) is rotatably connected to the bearing. The first guide groove (66) and the second guide groove (67) are both arranged in a complete single-turn spiral shape, and the pitch of the second guide groove (67) is greater than the pitch of the first guide groove (66). The first guide groove (66) and the slide rod (71) are slidably connected, and the fixing plate (72) and the rubber plug (73) are tightly fitted together.

6. The energy efficient output vertical multi-stage pump of stainless steel as claimed in claim 5 wherein: The cleaning assembly also includes a sliding plate (81) that can move up and down, a first moving plate (82) and a second moving plate (83) that can clean in all directions. The inner side of the second guide groove (67) is provided with a sliding plate (81). The upper sliding plate (81) passes through the third moving groove (87) and is connected to the upper part of the second moving plate (83). A slider (85) is fixedly installed on the left side of the bottom of the second moving plate (83). The lower sliding plate (81) passes through the third moving groove (87) and is connected to the lower part of the first moving plate (82). A groove (84) is provided on the right side of the top of the first moving plate (82). A push plate (86) is fixedly installed on the outer side of the lower sliding plate (81). The second guide groove (67) is slidably connected to the sliding plate (81), the top of the first moving plate (82) and the bottom of the second moving plate (83) are tightly fitted together, and the slide groove (84) and the slider (85) are slidably connected.

7. The energy efficient output vertical multi-stage pump of stainless steel as claimed in claim 6 wherein: The first movable plate (82) includes a baffle (821) and a cleaning brush (822). The top of the first movable plate (82) and the top of the second movable plate (83) are both equipped with baffles (821). The inner side of the baffle (821) is provided with a cleaning brush (822). The bottoms of the two cleaning brushes (822) are respectively installed on the top of the first movable plate (82) and the top of the second movable plate (83). The baffle (821) is made of rubber. The top of the baffle (821) is on the same horizontal line as the top of the cleaning brush (822). The two first moving plates (82), the two baffles (821) and the second moving plate (83) cooperate to form a receiving space.

8. The energy efficient output vertical multi-stage pump of stainless steel as claimed in claim 7, wherein: The sewage discharge mechanism also includes a first moving trough (91), an outlet (92) and an inlet (93). The bottom of the fixed frame (52) is provided with a first moving trough (91). The middle of the bottom of the fixed frame (52) is provided with an outlet (92). The outside of the outlet (92) is provided with an inlet (93). The outside of the first moving trough (91) is provided with a second moving trough (94). The outside of the inlet (93) is provided with a connecting trough (95). The outside of the connecting trough (95) is provided with a first water inlet (97). The inlet (93), the second moving trough (94), the connecting trough (95) and the first water inlet (97) are all located inside the connecting plate (42). The outside of the first water inlet (97) is provided with a second water inlet (98). The second water inlet (98) is located inside the guide (41). Rotating plates (99) are installed on both sides inside the inlet (93).

9. The energy efficient output vertical multi-stage pump of stainless steel as claimed in claim 8, wherein: The connecting groove (95) is sloped, the push plate (86) is slidably connected to the first moving groove (91) and the second moving groove (94), and the outlet (92) and the inlet (93) are correspondingly set; The connecting plate (42) is integrated with the inlet (93), the second moving groove (94), the connecting groove (95) and the first water outlet (97). The first moving groove (91) is connected to the outlet (92). The inlet (93), the second moving groove (94), the connecting groove (95) and the first water outlet (97) are connected. The first water outlet (97) and the second water outlet (98) are correspondingly connected. The second water outlet (98) is connected to the inner cavity of the drain valve (3).

10. The energy efficient output vertical multi-stage pump of stainless steel as claimed in claim 9, wherein: The rotating plate (99) includes a resettable torsion spring (991), a storage tank (992) with sealing function, and a sealing gasket (993). Two rotating plates (99) are installed on both sides inside the water inlet (93). The outer wall of the rotating plate (99) is equipped with a sealing gasket (993). The outer side of the rotating plate (99) is connected to the inner wall of the storage tank (992) through the torsion spring (991). The storage tank (992) is installed on the inner side of the connecting plate (42). The outer wall of the rotating plate (99) and the outer wall of the inlet (93) are closely fitted together. The rotating plate (99) is in the shape of a triangular flag. The outer side of the rotating plate (99) and the outer side of the second moving groove (94) are on the same horizontal line.

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