Water pump strainer with self-cleaning structure

Abstract

The utility model belongs to water taking pump auxiliary equipment technical field relates to a kind of water taking pump trash cover with self-cleaning structure.The trash cover is based on support rod, support ring, guard plate, water inlet tube and other components are fixed thereon.Filtration plate is provided on mounting ring, main shaft is rotatably connected with upper and lower filtration plates, and scraper wheel, upper scraping rod and impeller are slidably arranged.Support rod is provided with discharge ring.When in use, the trash cover and water taking pump are placed in water, and the water taking pump drives water flow, so that the impeller drives the rotation of main shaft and related components, realizing self-cleaning of the filtration plate, and the sundries are discharged through the discharge ring.The trash cover solves the problems of water taking pump trash and filtration plate cleaning through unique structural design, and ensures the efficient operation of water taking pump.

Description

Technical Field

[0001] This application relates to the field of auxiliary equipment technology for water intake pumps, and specifically to a water intake pump debris shield with a self-cleaning structure. Background Technology

[0002] In practical applications of water intake pumps, various impurities in the water can adversely affect their normal operation. Traditional water intake pump debris traps are often just simple filter screens. During use, debris easily adheres to the filter screen, causing blockage and affecting the pump's suction efficiency. In severe cases, this can even lead to pump malfunction. Moreover, most of these traditional devices lack effective self-cleaning mechanisms, requiring regular manual cleaning of the filter screen. This not only increases maintenance costs and workload but may also affect the pump's continuous and stable operation if cleaning is not done in a timely manner.

[0003] With the increasing demands for the efficiency and stability of water intake pumps, there is an urgent need for a water intake pump debris shield that can effectively intercept debris and has a reliable self-cleaning function to ensure the efficient and stable operation of the water intake pump. Summary of the Invention

[0004] To address the aforementioned technical problems, this application solves the problem that during the water intake process, the water intake pump's efficiency is reduced or even malfunctions due to debris clogging the filter device in the water, and the traditional filter device lacks an effective self-cleaning mechanism.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a water intake pump sludge shield with a self-cleaning structure, comprising a support rod, on which multiple support rings, a protective plate, and a water inlet cylinder are fixedly mounted. A handle and a sealing cloth are installed on the end of the support ring. An mounting ring is fixedly mounted on the support rod, and an upper filter plate is fixedly mounted on the mounting ring. A main shaft is rotatably mounted on the upper filter plate, and a lower filter plate for preliminary filtration is rotatably mounted on the main shaft. A scraper wheel for cleaning the upper filter plate and an upper scraper for cleaning the lower filter plate are slidably mounted on the main shaft. An impeller that rotates with the water flow is also slidably mounted on the main shaft. Two discharge rings are provided on the support rod, and multiple discharge grooves are provided on the discharge rings.

[0006] To better realize this application, the two end faces of the upper filter plate are further recessed inward to form arc-shaped grooves, and each of the two end faces of the upper filter plate is in contact with a scraper wheel.

[0007] To better realize this application, the scraper wheel is further provided with multiple scrapers, each of which is inclined and cooperates with the arc-shaped groove end face of the upper filter plate.

[0008] To better realize this application, the impeller blade length is further greater than half the radius of the inner wall of the upper filter plate.

[0009] To better realize this application, a spiral scraper is further provided at the end of the upper scraper away from the main shaft. The spiral scraper has a spiral structure and is provided with an inclined surface.

[0010] To better realize this application, the main shaft is further provided with threads and grooves, and the threads are screwed with a lower fixing bolt, a middle fixing bolt and an upper fixing bolt to limit the position of the upper scraper, the lower filter plate, the scraper wheel and the impeller. The grooves of the main shaft are used to facilitate the installation and driving of the impeller, the scraper wheel and the upper scraper to rotate.

[0011] The technical solution provided in this application has the following advantages compared with the prior art:

[0012] 1. This application sets up an impeller, which is driven by the water flow generated by the water pump to rotate. This, in turn, drives the main shaft and the connected scraper wheel and upper scraper to rotate, thereby achieving automatic cleaning of the filter plate, reducing the frequency of manual cleaning, improving the continuous working efficiency of the water pump, and solving the problem of frequent manual cleaning required by traditional filtration devices.

[0013] 2: This application adopts a multi-stage filtration structure with upper and lower filter plates, and the filter holes of the upper filter plate are smaller than those of the lower filter plate, which effectively improves the dirt interception effect and can more comprehensively intercept debris of different sizes in the water, ensuring the water quality sucked into the water pump and avoiding damage to the water pump caused by debris.

[0014] 3: In this application, the two end faces of the upper filter plate are designed as inwardly recessed arc-shaped grooves, which not only improves the vortex effect of the water flow and enhances the suction of the water source, but also uses centrifugal force to move the impurities to the outside, improves the impurity discharge efficiency, and optimizes the filtration and impurity discharge process.

[0015] 4: This application provides multiple inclined scrapers on the scraper wheel, which cooperate with the arc-shaped groove end face of the upper filter plate. When rotating, they can effectively scrape off debris and promote water flow, further promoting the discharge of debris and the circulation of water.

[0016] 5: In this application, the impeller blade length is designed to be greater than half the radius of the inner wall of the upper filter plate, which can better adapt to the rotating water flow, avoid the reduction of impeller driving force due to the hollowing caused by the high-speed rotation of the water flow, and ensure stable self-cleaning power.

[0017] 6: This application provides a spiral scraper at the end of the upper scraper away from the main shaft. While scraping away debris from the lower filter plate, it can also clean debris from the inner wall of the water inlet cylinder, keeping the water inlet unobstructed and ensuring that external water sources can enter smoothly.

[0018] 7: This application improves the stability and service life of the device by setting threads and grooves on the main shaft and using fixing bolts to restrict the position of each component. This not only facilitates the installation and driving rotation of each component, but also avoids damage to the components due to swinging and collision during rotation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this application;

[0020] Figure 2 A cross-sectional view of the front of this application;

[0021] Figure 3 This is a broken cross-sectional view from the isometric perspective of this application;

[0022] Figure 4 This is a schematic diagram of the impeller structure of this application;

[0023] Figure 5 This is a schematic diagram of the material discharge ring structure of this application;

[0024] Figure 6 This is a schematic diagram of the scraper bar structure in this application;

[0025] Figure 7 This is an exploded view of the parts on the spindle of this application;

[0026] Figure 8 This is a schematic diagram of the spiral scraper of this application;

[0027] Figure 9 This is a schematic diagram of the two scraper wheels in this application.

[0028] In the diagram: 101-Support rod; 102-Support ring; 103-Protective plate; 104-Sealing cloth; 105-Handle; 106-Water inlet cylinder; 107-Water inlet shell; 108-Mounting ring; 109-Upper filter plate; 110-Main shaft; 111-Scraper wheel; 112-Impeller; 113-Lower filter plate; 114-Upper scraper; 115-Spiral scraper; 116-Lower fixing bolt; 117-Intermediate fixing bolt; 118-Upper fixing bolt; 119-Discharge ring; 120-Support block. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] like Figures 1 to 9 As shown, a water intake pump sludge shield with a self-cleaning structure includes a support rod 101. Multiple support rings 102, a protective plate 103, and a water inlet cylinder 106 are fixedly mounted on the support rod 101. A handle 105 and a sealing cloth 104 are installed on the end of the support ring 102. An mounting ring 108 is fixedly mounted on the support rod 101, and an upper filter plate 109 is fixedly mounted on the mounting ring 108. A main shaft 110 is rotatably mounted on the upper filter plate 109, and a lower filter plate 113 for preliminary filtration is rotatably mounted on the main shaft 110. A scraper wheel 111 for cleaning the upper filter plate 109 and an upper scraper 114 for cleaning the lower filter plate 113 are slidably mounted on the main shaft 110. An impeller 112 that rotates with the water flow is also slidably mounted on the main shaft 110. Two discharge rings 119 are provided on the support rod 101, and multiple discharge grooves are provided on the discharge rings 119.

[0032] Specifically, by disassembling and assembling the sealing cloth 104, the water pump is placed in the protective area enclosed by the support rod 101, and the water supply pipe is inserted into the through hole on the sealing cloth 104. The water pump is fixed on the upper support ring 102. The height of the lower suction port of the water pump is set to be greater than the height of the upper surface of the water inlet shell 107. Thus, before placing the water pump, the debris shield of this application and the water pump can be placed horizontally outside, with the end of the water pump away from the suction port aligned with the position of the handle 105, and the suction port of the water pump facing the direction of the water inlet cylinder 106. This allows for comparison to determine the approximate location of the suction port of the water pump and to observe whether the debris shield of this specification is suitable for the water pump.

[0033] In use, the debris trap and water pump of this application are placed in water, so that the liquid level is much higher than the horizontal height of the support ring 102 located in the middle. Thus, the water from the outside enters the interior of the water inlet cylinder 106 through the groove on the water inlet cylinder 106 and submerges the suction end of the water pump. Then, the water pump is started by the electronic control system, and the required water is quickly drawn in through the suction port, which drives the water flow. Because the impeller 112 is submerged in the water source, the water flow drives the impeller 112 to rotate around the axis of the main shaft 110. In turn, the impeller 112 drives the main shaft 110 and the two scraper wheels 111 and the upper scraper rod 114 above it to rotate. The scraper wheel 111 contacts the concave end face of the upper filter plate 109, thereby scraping off the end face of the upper filter plate 109 and scraping off the impurities in the sewage. Similarly, the upper scraper rod 114 scrapes off the debris on the lower filter plate 113, thereby realizing the self-cleaning operation of the filter screen structure.

[0034] Two discharge rings 119 are located above the lower filter plate 113 and the upper filter plate 109, respectively. After the scraper wheel 111 removes debris, the debris is guided and pushed by the scraper wheel 111, and driven by a portion of the water flow, it approaches and passes through the groove on the discharge ring 119, entering the space between the mounting ring 108 and the water inlet shell 107. Because the upper end of the water inlet shell 107 has an opening, and the lower end is sealed to the water inlet cylinder 106, the water flowing into this space is pushed upwards along the inner wall of the water inlet shell 107 by subsequent water flow and discharged to the outside through the opening. Debris scraped off by the upper scraper 114 is discharged through the groove of the water inlet cylinder 106. Some smaller debris passes through the filter holes of the lower filter plate 113, is conveyed upwards, filtered by the upper filter plate 109, scraped off by the scraper wheel 111, and finally discharged through the opening of the water inlet shell 107.

[0035] like Figure 2 , Figure 3 , Figure 7 and Figure 9 As shown, both end faces of the upper filter plate 109 are recessed inward to form arc-shaped grooves, and each of the two end faces of the upper filter plate 109 is in contact with a scraper wheel 111.

[0036] Specifically, the filter pore size of the upper filter plate 109 is smaller than that of the lower filter plate 113, thus forming a multi-stage filtration system and improving the dirt-trapping effect. The inward-curving arc-shaped grooves at the upper and lower ends of the upper filter plate 109 enhance the vortex effect of the water flow when the water pump is operating, causing the water to rotate on the upper and lower end faces of the upper filter plate 109. This increases the suction force on the water source and drives impurities in the water source to move outwards through centrifugal force, thereby improving the efficiency of impurity discharge.

[0037] like Figures 2 to 5 , Figure 7 and Figure 9As shown, the scraper wheel 111 is provided with multiple scrapers, each of which is inclined and cooperates with the arc-shaped groove end face of the upper filter plate 109.

[0038] Specifically, the scraper wheel 111 is equipped with 6 scrapers, each with a 45-degree tilt angle, so that when it rotates, it scrapes away the debris on the upper filter plate 109 and promotes the flow of water.

[0039] like Figure 9 The two scraper wheels 111 shown are arranged opposite to each other, and the upper filter plate 109 is located between the two scraper wheels 111. The shape of the upper filter plate 109 near one end of the upper filter plate 109 matches the inwardly recessed arc groove of the upper filter plate 109, thereby improving the effect of the scraper wheel 111 on the rotation of the water flow when it rotates.

[0040] like Figures 2 to 5 As shown, the blade length of the impeller 112 is greater than half the inner wall radius of the upper filter plate 109.

[0041] Specifically, the blade length of impeller 112 is greater than half the radius of upper filter plate 109, so that the blade with a larger coverage area can adapt to the rotating water flow and avoid the formation of a hollow in the middle due to the high speed of water flow, which would reduce the driving force on impeller 112.

[0042] like Figures 5 to 8 As shown, a spiral scraper 115 is fixedly installed at one end of the upper scraper 114 away from the main shaft 110. The spiral scraper 115 has a spiral structure and is provided with an inclined surface.

[0043] Specifically, four upper scraper rods 114 are provided, and all four are connected by a ring. This ring is slidably mounted on the main shaft 110. The main shaft 110 drives the four upper scraper rods 114 to rotate through the ring, thus scraping the lower filter plate 113. When the upper scraper rods 114 rotate, they drive the upper end of the spiral scraper rod 115 to rotate. The spiral direction of the spiral scraper rod 115 matches the rotation direction of the spiral scraper rod 115, such as... Figure 6 As shown, when the upper scraper 114 rotates clockwise, it drives the upper end of the spiral scraper 115 to rotate from left to right, thereby creating a pulling force on the spiral scraper 115 rather than a pushing force. Thus, when the spiral scraper 115 rotates, the inclined surface on the spiral scraper 115 can scrape away debris on the inner wall of the water inlet cylinder 106 to a certain extent, clean the water inlet, and maintain the entry of external water sources.

[0044] like Figure 3 and Figure 7As shown, the main shaft 110 is provided with threads and grooves. The threads are screwed with a lower fixing bolt 116, a middle fixing bolt 117 and an upper fixing bolt 118 to limit the position of the upper scraper 114, the lower filter plate 113, the scraper wheel 111 and the impeller 112. The grooves of the main shaft 110 are used to facilitate the installation and driving of the impeller 112, the scraper wheel 111 and the upper scraper 114 to rotate.

[0045] Specifically, the upper and lower ends of the spindle 110 are threaded, and the ends are sealed by the lower fixing bolt 116 and the upper fixing bolt 118 respectively. The middle part is supported and limited by the ring of the component and the middle fixing bolt 117 to maintain sufficient space and prevent the components from swinging during rotation, causing contact, collision and damage.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A water intake pump screen with self-cleaning structure, characterized in that, The system includes a support rod (101), on which multiple support rings (102), a protective plate (103), and a water inlet cylinder (106) are fixedly mounted. A handle (105) and a sealing cloth (104) are installed on the end of each support ring (102). An mounting ring (108) is fixedly mounted on the support rod (101), and an upper filter plate (109) is fixedly mounted on the mounting ring (108). A main shaft (110) is rotatably mounted on the upper filter plate (109). The main shaft (110) is rotatably equipped with a lower filter plate (113) for preliminary filtration. The main shaft (110) is slidably equipped with a scraper wheel (111) for cleaning the upper filter plate (109) and an upper scraper (114) for cleaning the lower filter plate (113). The main shaft (110) is also slidably equipped with an impeller (112) that rotates with the water flow. The support rod (101) is equipped with two discharge rings (119), and the discharge rings (119) are equipped with multiple sewage discharge channels.

2. The water intake pump screen with self-cleaning structure according to claim 1, characterized in that, The two end faces of the upper filter plate (109) are recessed inward to form arc-shaped grooves, and each of the two end faces of the upper filter plate (109) is in contact with a scraper wheel (111).

3. The water intake pump screen with self-cleaning structure according to claim 1, characterized in that, The scraper wheel (111) is provided with multiple scrapers, each of which is inclined and cooperates with the arc-shaped groove end face of the upper filter plate (109).

4. The water intake pump screen with self-cleaning structure according to claim 1, characterized in that, The blade length of the impeller (112) is greater than half the radius of the inner wall of the upper filter plate (109).

5. The water intake pump screen with self-cleaning structure according to claim 1, characterized in that, The upper scraper (114) is fixedly provided with a spiral scraper (115) at one end away from the main shaft (110). The spiral scraper (115) has a spiral structure and is provided with an inclined surface.

6. The water intake pump screen with self-cleaning structure according to claim 1, characterized in that, The main shaft (110) is provided with threads and grooves. The threads are screwed with a lower fixing bolt (116), a middle fixing bolt (117) and an upper fixing bolt (118) to limit the position of the upper scraper (114), the lower filter plate (113), the scraper wheel (111) and the impeller (112). The groove of the main shaft (110) is used to facilitate the installation and driving of the impeller (112), the scraper wheel (111) and the upper scraper (114) to rotate.

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