Booster water pump of household water pipe network

Abstract

The invention relates to the technical field of booster water pumps, and particularly discloses a booster water pump of a household water pipe network, which comprises a pump shell, a rotor structure and a stator structure are respectively arranged in the pump shell, and a separation layer is arranged between the rotor structure and the stator structure. A rotor mounting cavity for mounting a rotor structure and a stator mounting cavity for mounting a stator structure are respectively formed in the separation layer; a water storage shell is arranged on the pump shell, a pressurization water cavity and an impeller chamber are formed in the water storage shell and communicate with each other through a water guide channel in a penetrating mode, and a water inlet pipe is connected to the end, facing the interior of the pressurization water cavity, of the water guide channel. Through cooperation of the inflation and deflation assembly and the water collecting pipe structure, when the water pump stops using, the water storage shell is inflated and pressurized, water liquid in the rotor mounting cavity is guided into the water storage shell through the water guide pipe, the connecting hole channel and the like, the rotor structure and the water liquid are separated, corrosion and oxidation of the water liquid to the rotor are reduced, and the durability of a rotor part is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of booster water pumps, and in particular to a booster water pump for a household water pipe network. Background Art

[0002] Household water use often suffers from weak water flow due to floor height, pipe layout or insufficient water source pressure. Booster pumps can improve the user experience of showering, washing and water-using appliances by increasing water pressure and ensuring stable water flow.

[0003] The water supply network booster with publication number CN2872059Y includes a water storage tank 3, a booster water pump 7 and its control circuit. The water inlet of the water storage tank is connected to the water supply network, and the water outlet is connected to the booster water pump 7. The water storage tank 3 is equipped with an exhaust valve 2, a pressure gauge 2 and a water level gauge 5.

[0004] An intelligent pressurizing device for a city water supply network, with publication number CN211499053U, includes a control cabinet, a non-negative pressure tank, a water pump connected to the non-negative pressure tank, a pressure stabilizing tank connected to the water pump outlet, a pressurizing device connected to the pressure stabilizing tank, and a pressure sensor.

[0005] The booster pumps in existing household water networks have the following technical problems in actual application: 1. The stator structure is easily corroded by water, resulting in a shortened motor life; 2. The rotor structure is in long-term contact with water, which is prone to corrosion and oxidation, affecting the performance and service life of the water pump; 3. The response time when the water pump starts is long and the water filling efficiency is low; 4. After shutdown, water is easily accumulated in the rotor installation cavity, and drainage is not thorough, exacerbating component damage; 5. The presence of air during the boosting process may affect the boosting effect, and water is easy to flow back to the water source. Summary of the Invention

[0006] (1) Technical problems solved

[0007] The purpose of the present invention is to provide a booster water pump for a household water network in order to solve the above problems.

[0008] (2) Technical solution

[0009] To achieve the above objectives, the present invention provides the following technical solutions:

[0010] The present invention provides a booster water pump for a household water network, comprising a pump housing, wherein a rotor structure and a stator structure are respectively disposed within the pump housing, a partition layer is disposed between the rotor structure and the stator structure, and a rotor mounting cavity for mounting the rotor structure and a stator mounting cavity for mounting the stator structure are respectively formed on the partition layer;

[0011] The pump housing is provided with a water storage shell, wherein a pressurized water chamber and an impeller chamber are respectively formed in the water storage shell, and the pressurized water chamber and the impeller chamber are connected to each other through a water guide channel, and one end of the water guide channel facing the pressurized water chamber is connected to a water inlet pipe;

[0012] The water storage shell is provided with an air charging and discharging assembly for achieving inflation and pressurization and exhaust negative pressure therein, and a water collecting pipe structure is provided between the water storage shell and the rotor mounting cavity. When the air charging and discharging assembly inflates and pressurizes the water storage shell, the water in the rotor mounting cavity can be introduced into the water storage shell through the water collecting pipe structure.

[0013] Furthermore, a first flange is provided on the pump casing, and a second flange is provided on the water storage casing. The first flange and the second flange are fixedly connected to each other by bolts. One end of the positioning plug shaft is fixedly connected to the partition layer, and the other end of the positioning plug shaft passes through the pump casing. The outer side of the positioning plug shaft located in the pump casing is protruded with a boss, and the boss is provided with a sealing gasket for abutting and sealing with the inner side of the pump casing.

[0014] Furthermore, the rotor mounting cavity is open on one side toward the impeller chamber and is in communication with the impeller chamber, the stator mounting cavity is open on the side opposite to the impeller chamber and is connected to an end cover by bolts, and the stator structure includes a plurality of stator bodies arranged in the stator mounting cavity, and the stator bodies are fixed in the stator mounting cavity by a stator bracket.

[0015] Furthermore, the rotor structure includes a rotating shaft, one end of which is rotatably connected to the separation layer, and a number of evenly distributed rotor bodies are arranged on the rotating shaft with its axial direction as the center. The rotor bodies are all fixed on the rotating shaft through a rotor bracket, and the end of the rotor bracket is rotatably arranged at the water guide channel position through a bearing.

[0016] Furthermore, the water collecting pipe structure includes a water pipe, a pipe joint is provided on one side of the upper part of the water storage shell, a connecting channel is provided in the positioning plug shaft, the upper end of the water pipe and the pipe joint are connected to each other, the lower end of the water pipe and the positioning plug shaft are connected to each other and communicated with the lower end of the connecting channel, and the upper end of the connecting channel is communicated with the bottom side of the rotor mounting cavity through a number of second water guide holes.

[0017] Furthermore, the water storage shell is respectively connected to a drain pipe and a water inlet pipe, the drain pipe is connected to the impeller chamber, the water inlet pipe is connected to the pressurized water chamber, and the connection port of the water inlet pipe and the pressurized water chamber is lower than the upper water inlet of the water inlet pipe.

[0018] Furthermore, the inflation and deflation assembly includes a vent pipe connected to the top side of the water storage shell, an inflation and deflation pump is provided on one side of the vent pipe, an electromagnetic valve is provided on the vent pipe, and an air pressure sensor is provided on the top side of the pressurized water chamber.

[0019] Furthermore, a plurality of first water guide holes are formed on a side wall of the rotor bracket close to the top end of the rotor bracket. The first water guide holes are evenly distributed along the circumference of the rotor bracket and are communicated with the rotor installation cavity.

[0020] Furthermore, a sealing shoulder plate is provided on the side of the separation layer facing the stator mounting cavity. The sealing shoulder plate and the separation layer are an integrally formed structure, and when the first flange and the second flange are butt-connected to each other, the sealing shoulder plate fits tightly against the end of the water storage shell, thereby enhancing the sealing of the stator mounting cavity and preventing water from leaking out of the rotor mounting cavity.

[0021] Furthermore, a water hole is provided on the bottom side of the pump casing for draining water when water accumulates inside the pump casing.

[0022] (3) Beneficial effects

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The rotor structure and stator structure are separated by a separation layer to form independent rotor installation cavities and stator installation cavities, which effectively prevents water from corroding the stator structure, avoids damage to the motor due to water ingress, and significantly extends the service life of the motor.

[0025] 2. The air charging and discharging components cooperate with the water collecting pipe structure. When the water pump stops using, the water storage shell is inflated and pressurized, and the water in the rotor installation cavity is introduced into the water storage shell through the water guide pipe, connecting channel, etc., so as to separate the rotor structure from the water, reduce the corrosion and oxidation of the rotor by the water, and improve the durability of the rotor components.

[0026] 3. During startup, the air charging and discharging components create negative pressure in the pressurized water chamber, accelerating the flow of water from the water inlet pipe, shortening the filling time of the impeller chamber, and reducing the response time. At the same time, the negative pressure state can also play a role in initial pressurization, thereby improving the working efficiency of the water pump.

[0027] 4. The connection position of the water inlet pipe and the pressurized water chamber is lower than the water inlet position at the upper end of the water inlet pipe. When the machine is shut down for inflation and pressurization, it can prevent water from flowing back to the water source end, ensuring that the water in the rotor installation chamber is completely emptied; the water hole on the bottom side of the pump casing can drain the accumulated water in the pump casing in time to avoid damage to internal components caused by accumulated water.

[0028] 5. The first flange and the second flange are fixed by bolts, and cooperate with sealing gaskets and sealing shoulder plates to form a multiple sealing structure, which effectively prevents water leakage, enhances the sealing of the stator installation cavity, and ensures the normal operation of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0031] Figure 2 This invention Figure 1 A schematic diagram of a three-dimensional structure in a first direction;

[0032] Figure 3 This invention Figure 1 AA cross-sectional structural diagram;

[0033] Figure 4 This invention Figure 3 A schematic diagram of the partially enlarged structure at point B;

[0034] Figure 5 This invention Figure 3 A schematic diagram of the partially enlarged structure at point C;

[0035] Figure 6 This invention Figure 3 A schematic diagram of the local enlarged structure at D;

[0036] Figure 7 This invention Figure 1 A schematic diagram of the second direction three-dimensional structure.

[0037] The accompanying drawings are described as follows: 1. Pump housing; 101. First flange; 102. Water hole; 2. Water storage housing; 201. Drain pipe; 202. Water inlet pipe; 203. Second flange; 204. Pipe joint; 205. Pressurized water chamber; 206. Impeller chamber; 207. Water guide channel; 3. Air charging and discharging assembly; 301. Ventilation pipe; 302. Solenoid valve; 303. Air charging and discharging pump; 4. Water guide pipe; 5. Water inlet pipe; 6. Rotor structure; 601. Rotor bracket; 602. Rotor body; 603, bearing; 604, first water guide hole; 605, rotating shaft; 7, blade; 8, partition layer; 801, end cover; 802, sealing shoulder plate; 803, stator mounting cavity; 804, rotor mounting cavity; 805, positioning plug shaft; 806, boss; 807, sealing gasket; 808, connecting channel; 809, second water guide hole; 9, stator structure; 901, stator body; 902, stator bracket; 903, fixed shaft; 10, air pressure sensor. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 7 As shown, the present invention provides a booster water pump for a household water network, including a pump casing 1, in which a rotor structure 6 and a stator structure 9 are respectively arranged. A water hole 102 is opened on the bottom side of the pump casing 1 for discharging water when water accumulates inside the pump casing 1.

[0040] A separation layer 8 is provided between the rotor structure 6 and the stator structure 9, wherein the separation layer 8 is used to ensure that the stator structure 9 is not corroded by water and prolong the life of the motor. A rotor installation cavity 804 for installing the rotor structure 6 and a stator installation cavity 803 for installing the stator structure 9 are respectively formed on the separation layer 8; a water storage shell 2 is provided on the pump housing 1, and a pressurized water chamber 205 and an impeller chamber 206 are respectively formed in the water storage shell 2. The pressurized water chamber 205 and the impeller chamber are connected to each other through a water guide channel 207. One end of the water channel 207 is connected to a water inlet pipe 5 facing the pressurized water chamber 205; the water storage shell 2 is provided with an air charging and discharging component 3 for achieving air inflation and pressurization and exhaust negative pressure therein. The air charging and discharging component 3 cooperates with the water collecting pipe structure. When the water pump stops using, the water in the rotor mounting cavity 804 is emptied by inflation and pressurization, so that the rotor structure 6 is separated from the water, reducing the corrosion and oxidation of the rotor by the water; at startup, the exhaust negative pressure is used to accelerate the filling of the water, shorten the response time, and improve the working efficiency of the water pump.

[0041] A water collecting pipe structure is provided between the water storage shell 2 and the rotor installation cavity 804. When the inflation and deflation assembly 3 inflates and pressurizes the water storage shell 2, the water in the rotor installation cavity 804 can be introduced into the water storage shell 2 through the water collecting pipe structure.

[0042] See the instructions attached Figure 3 、 Figure 5 and Figure 6As shown, a first annular flange 101 is provided on the pump casing 1, and a second flange 203 is correspondingly provided on the water storage casing 2. The two flanges are rigidly fixedly connected by a number of evenly distributed high-strength bolts passing through screw holes. The bolt connection can adjust the pre-tightening force to ensure that the flange surfaces fit tightly, and cooperate with sealant or gaskets to prevent liquid leakage; one end of the positioning plug shaft 805 is fixedly connected to the bottom of the partition layer 8, and the other end of the positioning plug shaft passes through the preset through hole at the bottom of the pump casing 1. The outer side of the positioning plug shaft 805 located in the pump casing 1 is raised to form an annular boss 806, and a sealing gasket 807 is provided on the lower side of the annular boss 806. When the positioning plug shaft 805 is inserted into the pump casing 1, the sealing gasket 807 is squeezed by the annular boss 806 and the inner wall of the pump casing 1 to produce elastic deformation to form a radial seal. Block the water leakage path; the rotor installation cavity 804 is completely open on the side facing the impeller chamber 206 and is connected to the impeller chamber 206, so that the water in the impeller chamber can flow into the immersed rotor structure to achieve cooling; the stator installation cavity 803 is open on the side opposite to the impeller chamber, and the end cover 801 is fixed by several bolts. A waterproof sealing strip is pasted on the inside of the end cover. Several stator bodies 901 of the stator structure 9 are welded or bolted to the inner wall of the stator installation cavity through a U-shaped stator bracket 902; the partition layer 8 is integrally formed with an annular sealing shoulder plate 802 along the edge on the side facing the stator installation cavity 803. When the two flange bolts are tightened, the sealing shoulder plate is squeezed and fits tightly with the end plane of the water storage shell, forming double protection with the flange sealing structure, blocking the water penetration path to the stator installation cavity.

[0043] See the instructions attached Figure 2 、 Figure 3 and Figure 6 As shown, the water collection pipe structure includes a water pipe 4, a pipe joint 204 is provided on one side of the upper portion of the water storage shell 2, and a connecting channel 808 is provided within the positioning plug shaft 805. The upper end of the water pipe 4 is connected to the pipe joint 204, and the lower end of the water pipe 4 is connected to the positioning plug shaft 805 and communicates with the lower end of the connecting channel 808. The upper end of the connecting channel 808 communicates with the bottom side of the rotor mounting cavity 804 through a plurality of second water guide holes 809. Through the above-mentioned specific structural design, the core function of the water collection pipe structure is to guide the water in the rotor mounting cavity 804 into the water storage shell 2 when the inflation and deflation assembly 3 inflates and pressurizes the water storage shell 2, thereby separating the rotor structure 6 from the water and preventing component corrosion or starting resistance caused by residual water.

[0044] See the instructions attached Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, the rotor structure 6 includes a rotating shaft 605, one end of which is rotatably connected to the separation layer 8. A number of rotor bodies 602 are evenly distributed on the rotating shaft 605 with its axial direction as the center. The rotor bodies 602 are fixed to the rotating shaft 605 through a rotor bracket 601. The end of the rotor bracket 601 is rotatably set at the position of the water guide channel 207 through a bearing 603.

[0045] See the instructions attached Figure 1 、 Figure 2 、 Figure 3 and Figure 7 As shown, the water storage shell 2 is respectively connected to a drain pipe 201 and a water inlet pipe 202, the drain pipe 201 is connected to the impeller chamber 206, and the water inlet pipe 202 is connected to the pressurized water chamber 205, and the connection position of the water inlet pipe 202 and the pressurized water chamber 205 is lower than the upper end water inlet position of the water inlet pipe 5.

[0046] Water filling stage: The air filling and deflation component 3 first draws negative pressure to the pressurized water chamber 205, and the water inlet pipe 202 is quickly filled with water under the action of atmospheric pressure. Due to the low-position design of the connection port, the water first fills the pressurized water chamber 205 and then flows into the impeller chamber 206 through the water inlet pipe 5;

[0047] Pressurization stage: The rotor structure 6 drives the water in the impeller chamber 206 to be discharged from the drain pipe 201. At the same time, the water in the pressurized water chamber 205 is continuously replenished to the impeller chamber 206 through the water guide channel 207, forming a cycle.

[0048] Emptying stage: When the inflation and deflation assembly 3 is inflated and pressurized, the air pressure in the pressurized water chamber 205 guides the water in the rotor installation chamber 804 back through the water collecting pipe structure. At this time, the low-position connection port of the water inlet pipe 202 can prevent the water from flowing back to the water source end, ensuring complete emptying.

[0049] The liquid level difference design between the water inlet pipe 202 and the water inlet pipe 5 realizes automatic emptying of the rotor installation cavity 804 through air pressure drive during shutdown, reducing the risk of water corrosion on the rotor structure 6.

[0050] The inflation / deflation assembly 3 includes a vent tube 301 connected to the top side of the water storage housing 2. An inflation / deflation pump 303 is installed on one side of the vent tube 301. A solenoid valve 302 is also installed on the vent tube 301. A pressure sensor 10 is installed on the top side of the pressurized water chamber 205. Several first water guide holes 604 are defined on the sidewall of the rotor bracket 601 near its top. These first water guide holes 604 are evenly distributed along the circumference of the rotor bracket 601 and communicate with the rotor mounting chamber 804.

[0051] Working principle:

[0052] During use, water enters the pressurized water chamber 205 in the water storage shell 2 from the water inlet pipe 202. As the water is introduced, the water level in the pressurized water chamber 205 gradually increases until the water can be introduced into the impeller chamber 206 and the rotor installation chamber 804 through the water inlet pipe 5. As the rotor structure 6 rotates, the blades 7 are driven to rotate, thereby driving the water to be discharged from the drain pipe 201. In this process, the water can soak the rotor structure 6, playing a role in cooling down. When the drainage is not disconnected, the water level in the pressurized water chamber 205 drops below the height of the upper end of the water inlet pipe 5, and the water no longer enters the impeller chamber 206 from the water inlet pipe 5. Most of the water in the impeller chamber 206 is discharged from the drain pipe 201. A valve for controlling its on and off is provided on the water pipe connected to the water inlet pipe 202. The valve realizes the on and off of the water inlet pipe 202. After the disconnection, the air charging and discharging component 3 inflates and pressurizes the boosting water chamber 205, and the air pressure sensor 10 detects the air pressure in the boosting water chamber 205 and realizes feedback control of the air charging and discharging component 3. When inflating and pressurizing the boosting water chamber 205, part of the water in the boosting water chamber 205 fills the gap in the water inlet pipe 202, thereby causing the liquid level in the boosting water chamber 205 to drop a part. During the inflation and pressurization process, the water in the rotor mounting chamber 804 enters the boosting water chamber 205 through the water collecting pipe structure until the water in the rotor mounting chamber 804 is drained, thereby realizing the separation of the rotor structure 6 from the water when not in use; in the above process, the air charging and discharging component 3 can cooperate with the high-pressure gas tank to inflate and pressurize the boosting water chamber 205, and fill each other with protective gases such as nitrogen to better protect the rotor structure 6.

[0053] When the device is in use, the inflation and deflation component 3 first discharges the upper air in the pressurized water chamber 205 until the air pressure changes from positive pressure to a certain negative pressure, which is detected and feedback-controlled by the air pressure sensor 10. The solenoid valve 302 disconnects and closes the vent pipe 301, opens the water inlet pipe 202, and the negative pressure state in the pressurized water chamber 205 can accelerate the flow of water, which plays a role in quickly filling and introducing water into the impeller chamber 206, reducing the response time and the initial pressurization, and also avoiding the adverse effects of excessive air in the pressurized water chamber 205 on the pressurization.

[0054] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A booster pump for a household water network, characterized by: The invention comprises a pump housing (1), wherein a rotor structure (6) and a stator structure (9) are respectively arranged in the pump housing (1), a separation layer (8) is arranged between the rotor structure (6) and the stator structure (9), and a rotor installation cavity (804) for installing the rotor structure (6) and a stator installation cavity (803) for installing the stator structure (9) are respectively formed on the separation layer (8); A water storage shell (2) is provided on the pump housing (1), and a pressurized water chamber (205) and an impeller chamber (206) are respectively formed in the water storage shell (2). The pressurized water chamber (205) and the impeller chamber (206) are connected to each other through a water guide channel (207), and one end of the water guide channel (207) facing the pressurized water chamber (205) is connected to a water inlet pipe (5); The water storage shell (2) is provided with a gas charging and discharging assembly (3) for achieving inflation and pressurization of the water storage shell and exhaust of negative pressure therein, and a water collecting pipe structure is provided between the water storage shell (2) and the rotor installation cavity (804). When the gas charging and discharging assembly (3) inflates and pressurizes the water storage shell (2), the water in the rotor installation cavity (804) can be introduced into the water storage shell (2) through the water collecting pipe structure.

2. A booster water pump for a household water network according to claim 1, characterized in that: The pump housing (1) is provided with a first flange (101), and the water storage housing (2) is provided with a second flange (203). The first flange (101) and the second flange (203) are fixedly connected to each other by bolts. One end of a positioning plug shaft (805) is fixedly connected to the partition layer (8), and the other end of the positioning plug shaft (805) passes through the pump housing (1). The outer side of the positioning plug shaft (805) located in the pump housing (1) is provided with a convex shoulder (806), and the convex shoulder (806) is provided with a sealing gasket (807) for abutting and sealing with the inner side of the pump housing (1).

3. A booster water pump for a household water network according to claim 2, characterized in that: The rotor installation cavity (804) is open toward one side of the impeller chamber (206) and is in communication with the impeller chamber (206); the stator installation cavity (803) is open on the side opposite to the impeller chamber (206) and is connected to an end cover (801) by bolts; the stator structure (9) comprises a plurality of stator bodies (901) disposed in the stator installation cavity (803); and the stator bodies (901) are fixedly disposed in the stator installation cavity (803) via a stator bracket (902).

4. A booster water pump for a household water network according to claim 1, characterized in that: The rotor structure (6) comprises a rotating shaft (605), one end of which is rotatably connected to a separation layer (8), and a plurality of evenly distributed rotor bodies (602) are arranged on the rotating shaft (605) with its axial direction as the center. The rotor bodies (602) are fixedly arranged on the rotating shaft (605) via a rotor bracket (601), and the end of the rotor bracket (601) is rotatably arranged at the position of the water guide channel (207) via a bearing (603).

5. A booster water pump for a household water network according to claim 3, characterized in that: The water collecting pipe structure comprises a water pipe (4), a pipe joint (204) is provided on one side of the upper portion of the water storage shell (2), a connecting channel (808) is provided in the positioning plug shaft (805), the upper end of the water pipe (4) and the pipe joint (204) are connected to each other, the lower end of the water pipe (4) and the positioning plug shaft (805) are connected to each other and communicate with the lower end of the connecting channel (808), and the upper end of the connecting channel (808) is communicated with the bottom side of the rotor installation cavity (804) through a plurality of second water guide holes (809).

6. A booster water pump for a household water network according to claim 1, characterized in that: The water storage shell (2) is respectively connected to a drain pipe (201) and a water inlet pipe (202); the drain pipe (201) and the impeller chamber (206) are in communication with each other; the water inlet pipe (202) and the pressurized water chamber (205) are in communication with each other; and the connection between the water inlet pipe (202) and the pressurized water chamber (205) is located lower than the upper water inlet of the water inlet pipe (5).

7. A booster water pump for a household water network according to claim 6, characterized in that: The inflation / deflation assembly (3) comprises a vent pipe (301) connected to the top side of the water storage shell (2); an inflation / deflation pump (303) is provided on one side of the vent pipe (301); a solenoid valve (302) is provided on the vent pipe (301); and an air pressure sensor (10) is provided on the top side of the pressurized water chamber (205).

8. A booster water pump for a household water network according to claim 4, characterized in that: A plurality of first water guide holes (604) are provided on a side wall of the rotor support (601) near the top of the rotor support (601). The first water guide holes (604) are evenly distributed along the circumference of the rotor support (601) and are in communication with the rotor installation cavity (804).

9. A booster water pump for a household water network according to claim 3, characterized in that: A sealing shoulder plate (802) is provided on the side of the separation layer (8) facing the stator installation cavity (803); the sealing shoulder plate (802) and the separation layer (8) are an integrally formed structure, and when the first flange (101) and the second flange (203) are butt-connected to each other, the sealing shoulder plate (802) is tightly fitted with the end of the water storage shell (2), thereby enhancing the sealing performance of the stator installation cavity (803) and preventing water from leaking out of the rotor installation cavity (804).

10. The booster pump for a household water network according to claim 1, characterized in that: The bottom side of the pump housing (1) is provided with a water hole (102) for draining water when water accumulates inside the pump housing (1).

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