High pressure submersible pump
By introducing a filter screen mechanism and a toggle plate into the submersible pump, the problem of poor cleaning performance of dry submersible pumps in water bodies with a lot of debris has been solved, and stable water pumping effect has been achieved in a variety of water bodies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-06-02
AI Technical Summary
When existing dry submersible pumps are used in water containing silt and a lot of debris, the scraper and brush bristles are easily obstructed, resulting in poor cleaning of the outer periphery of the filter screen and affecting the pumping effect.
A high-pressure submersible pump was designed. By installing a filter screen mechanism inside the pump body, the filter screen is rotated by the paddle and equipped with a deflector plate to automatically remove debris, avoid clogging, and ensure filtration effect.
It enables stable and safe water pumping in various water bodies, avoids filter clogging, and improves the reliability and efficiency of water pumping.
Smart Images

Figure CN224315197U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of submersible pumps, specifically a high-pressure submersible pump. Background Technology
[0002] Submersible pumps are essential equipment for deep well water extraction. During operation, the entire unit is submerged in water to extract groundwater to the surface. They are used for domestic water supply, mine rescue operations, industrial cooling, farmland irrigation, seawater lifting, ship ballast adjustment, and even for fountain landscaping. Dry-type submersible pumps use ordinary electric motors and rely on the casing contacting well water for stator water cooling. Oil-immersed pumps use transformer oil for oil-cooled motors, allowing simultaneous cooling of both the stator and rotor. However, because dry-type submersible pumps are typically placed directly into the water source to extract water, impurities in the water can easily enter the pump body due to the suction, potentially damaging internal structural components.
[0003] In related technologies, please refer to Chinese Patent No. CN221503629U, which specifically discloses a lightweight, high-pressure resistant dry submersible pump. When using this lightweight, high-pressure resistant dry submersible pump, first install the corresponding structural components in suitable positions. When the dry submersible pump needs to be used, take out the external threaded ring carrying the filter screen, and screw the external threaded ring into the inner side of the ring seat. This allows the ring frame inside the ring seat to provide auxiliary protection for the filter screen. Simultaneously, the ring seat can easily be screwed into the ring body at the bottom of the pump body, allowing the filter screen to filter and intercept water entering the pump body, preventing debris from entering. At the same time, the rotating impeller inside the pump body easily drives the pipe seat connected to the impeller to rotate. The irregular shaft can only slide inside the tube seat and cannot rotate on its own. At the same time, the irregular shaft can be easily inserted into the rotating tube, and the two fit together. However, they cannot rotate on their own. Then, the tube seat can easily drive the rotating tube to rotate through the irregular shaft. The rotation of the rotating tube can then drive the scraper connected to the outer circumference of the filter screen to rotate. The rotation of the scraper can then drive the bristles to clean the outer circumference of the filter screen, so that debris will not adhere to the surface of the filter screen. This allows the filter screen to stably protect the water inlet of the dry submersible pump, so that the dry submersible pump can stably and safely pump water.
[0004] The applicant discovered a deficiency in the use of the aforementioned lightweight, high-pressure resistant dry submersible pump: although the scraper rotation facilitates the cleaning of the outer periphery of the filter screen by driving the bristles, preventing debris from adhering to the surface of the filter screen and thus enabling the filter screen to stably protect the water inlet of the dry submersible pump.
[0005] However, when using the brush to clean the outer periphery of the filter screen, the applicability of the submersible pump is reduced. The comparison document shows that it can only be used in some water bodies without silt and a lot of debris, because silt and a lot of debris will obstruct the scraper and brush, preventing the scraper and brush from rotating properly, and therefore cannot effectively clean the outer periphery of the filter screen.
[0006] In view of this, this technical solution proposes a high-pressure submersible pump to better solve the problems mentioned above. Utility Model Content
[0007] The technical solution adopted by this utility model is as follows: a high-pressure submersible pump, including a pump body, a protective shell is provided below the pump body, and a support base for supporting the pump body is fixed at the bottom of the protective shell. A water inlet hole for water inlet is opened inside the protective shell.
[0008] The protective shell is rotatably installed with a filter screen mechanism for filtering water. The filter screen mechanism includes a filter screen placed inside the protective shell for filtering water. A fixing plate is fixed at the bottom of the filter screen, and a fixing ring is fixed at the top of the filter screen. The fixing ring is rotatably installed at the lower side of the pump body at the water inlet position via a bearing.
[0009] The fixed ring has a fixed seat installed inside via a connecting rod, and the top of the fixed seat is equipped with a pump body blade connecting seat that is used for transmission connection with the internal blades of the pump body via a drive shaft.
[0010] In a preferred embodiment, a handle and a power cord are provided on the top of the pump body, and the power cord is electrically connected to the internal components of the pump body to form a circuit.
[0011] In a preferred embodiment, a water outlet pipe for drainage is connected to an external water pipe on the lower right side of the pump body.
[0012] In a preferred embodiment, the water inlets are arranged in a ring inside the protective shell, and there are no fewer than four water inlets.
[0013] In a preferred embodiment, the filter screen, the fixing plate, and the fixing ring have the same diameter, and the fixing plate seals the bottom of the filter screen.
[0014] In a preferred embodiment, the outer walls of the filter screen, the fixing plate, and the fixing ring are fixed in a ring shape with a prying plate that can be used to pry away debris in the water, and there are no fewer than four prying plates.
[0015] In a preferred embodiment, the connecting rod is fixed in a ring shape between the fixing ring and the fixing seat.
[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: this technical solution is better suited for pumping water from various water bodies. By linking with the internal impeller of the pump body and driving the filter screen to rotate, it is not easy for debris to clog the filter screen, thereby enabling the pump body to pump water stably and safely.
[0017] In this invention, the pump body impeller connecting seat is connected to the impeller inside the pump body, and the fixing ring is installed at the water inlet position below the pump body through the bearing. When the pump body is started, the impeller inside the pump body drives the filter screen mechanism to rotate as a whole, so that the debris is not easy to clog the filter screen. At the same time, the actuating plate can automatically push away the debris near the filter screen, thus ensuring the filtration effect of the filter screen on the water, so that the pump body can stably and safely pump water. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the filter screen cover mechanism of this utility model;
[0020] Figure 3 This is a schematic diagram of the filter structure of this utility model.
[0021] The markings in the diagram are: 1-Pump body; 2-Handle; 3-Power cord; 4-Outlet pipe; 5-Protective shell; 6-Support base; 7-Inlet hole; 8-Filter screen cover mechanism; 9-Filter screen; 10-Fixing plate; 11-Fixing ring; 12-Bearing; 13-Actuating plate; 14-Connecting rod; 15-Fixing seat; 16-Drive shaft; 17-Pump body impeller connecting seat. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] The following will combine Figures 1-3 A high-pressure submersible pump according to an embodiment of the present invention will be described in detail.
[0024] refer to Figure 1As shown, a high-pressure submersible pump includes a pump body 1. A handle 2 and a power cord 3 are provided on the top of the pump body 1. The power cord 3 is electrically connected to the internal components of the pump body 1 to form a circuit. Both the power cord 3 and the pump body 1 are waterproof. A water outlet pipe 4 for drainage is provided on the lower right side of the pump body 1 and connected to an external water pipe. A protective shell 5 is provided on the bottom of the pump body 1. A support base 6 for supporting the pump body 1 is fixed at the bottom of the protective shell 5. Water inlet holes 7 are provided inside the protective shell 5. The water inlet holes 7 are distributed in a ring inside the protective shell 5, and there are no fewer than four water inlet holes 7.
[0025] refer to Figure 1-3 As shown, a filter screen mechanism 8 for filtering water is rotatably installed inside the protective shell 5. The filter screen mechanism 8 includes a filter screen 9 placed inside the protective shell 5 for filtering water. A fixing plate 10 is fixed to the bottom of the filter screen 9, and a fixing ring 11 is fixed to the top of the filter screen 9. The filter screen 9, the fixing plate 10 and the fixing ring 11 have the same diameter. The fixing plate 10 seals the bottom of the filter screen 9. The fixing ring 11 is rotatably installed at the water inlet position on the lower inner side of the pump body 1 through a bearing 12. The outer walls of the filter screen 9, the fixing plate 10 and the fixing ring 11 are fixed with a ring of actuating plates 13 for removing debris in the water. There are no fewer than four actuating plates 13.
[0026] refer to Figure 1-2 As shown, a fixed seat 15 is installed inside the fixed ring 11 via a connecting rod 14. The connecting rod 14 is fixed in a ring shape between the fixed ring 11 and the fixed seat 15. A pump body blade connecting seat 17 for transmission connection with the internal blade of the pump body 1 is installed on the top of the fixed seat 15 via a drive shaft rod 16.
[0027] Advantages of this application: This technical solution is better suited for pumping water from various water bodies. By linking with the internal blades of the pump body 1 and driving the filter screen 9 to rotate, it is not easy for debris to clog the filter screen 9, thereby enabling the pump body 1 to pump water stably and safely.
[0028] Working Principle: The impeller mentioned in this technical solution is the same as the impeller proposed in the comparative document. The specific installation structure of the impeller and the pump body is not described in this technical solution. This technical solution mainly describes the working process of the filter screen 9 rotating, as follows: Connect the pump body impeller connecting seat 17 to the impeller inside the pump body 1. At the same time, install the fixing ring 11 at the water inlet position below the pump body 1 through the bearing 12. Start the pump body 1. At this time, the impeller inside the pump body 1 drives the filter screen cover mechanism 8 to rotate as a whole, so that the debris is not easy to clog the filter screen 9. At the same time, the actuating plate 13 can automatically push away the debris near the filter screen 9, thus ensuring the filtration effect of the filter screen 9 on the water, so that the pump body 1 can stably and safely pump the water source.
[0029] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A high-pressure submersible pump, comprising a pump body (1), characterized in that: A protective shell (5) is provided below the pump body (1), and a support base (6) for supporting the pump body (1) is fixed at the bottom of the protective shell (5). A water inlet hole (7) for water inlet is provided inside the protective shell (5). The protective shell (5) is rotatably installed with a filter screen mechanism (8) for filtering water. The filter screen mechanism (8) includes a filter screen (9) placed inside the protective shell (5) for filtering water. A fixing plate (10) is fixed at the bottom of the filter screen (9), and a fixing ring (11) is fixed at the top of the filter screen (9). The fixing ring (11) is rotatably installed at the water inlet position on the lower inner side of the pump body (1) via a bearing (12). The fixed ring (11) is equipped with a fixed seat (15) inside by a connecting rod (14), and the fixed seat (15) is equipped with a pump body blade connecting seat (17) for transmission connection with the blade inside the pump body (1) by a drive shaft rod (16).
2. The high-pressure submersible pump as described in claim 1, characterized in that: A handle (2) and a power cord (3) are provided on the top of the pump body (1), and the power cord (3) is electrically connected to the internal components of the pump body (1) to form a circuit.
3. A high-pressure submersible pump as described in claim 2, characterized in that: The pump body (1) is connected to a water outlet pipe (4) on the lower right side for drainage, which is connected to an external water pipe.
4. A high-pressure submersible pump as described in claim 1, characterized in that: The water inlet holes (7) are arranged in a ring inside the protective shell (5), and there are no fewer than four water inlet holes (7).
5. A high-pressure submersible pump as described in claim 1, characterized in that: The filter screen (9), the fixing plate (10) and the fixing ring (11) have the same diameter, and the fixing plate (10) seals the bottom of the filter screen (9).
6. A high-pressure submersible pump as described in claim 1, characterized in that: The outer walls of the filter screen (9), the fixed plate (10) and the fixed ring (11) are fixed with a ring-shaped actuating plate (13) for removing debris in the water, and there are no fewer than four actuating plates (13).
7. A high-pressure submersible pump as described in claim 1, characterized in that: The connecting rod (14) is fixed in a ring shape between the fixing ring (11) and the fixing seat (15).
Citation Information
Patent Citations
Light high-pressure-resistant dry type submersible pump
CN221503629U