A high-efficiency long-life variable speed circulating pump and assembly

Abstract

This utility model provides a high-efficiency, long-life variable-speed circulating pump and its components, including a circulating pump with a pump chamber fixedly connected to its lower part. An inlet pipe and a drain pipe are fixedly connected to both ends of the pump chamber, and the inlet and drain pipes are connected by a pipeline. A frequency converter has a connecting part fixedly installed at its bottom, which connects to the inside of the circulating pump. A heat insulation plate is installed inside the frequency converter, and a first heat-conducting groove is fixedly connected to the connecting part. A filter assembly includes a connecting pipe with a first sealing ring fixedly connected inside. In this utility model, the connecting part at the bottom of the frequency converter, separated by a heat insulation plate, allows the heat generated by the circulating pump to enter the cavity through the connecting part and then be guided to the outside for heat dissipation through the heat-conducting groove. This heat dissipation ensures that all components of the circulating pump operate at a suitable temperature, extends the service life of the circulating pump, ensures stable and efficient operation of the circulating pump, and guarantees the normal operation of the entire circulating pump.

Description

Technical Field

[0001] This utility model relates to the field of circulating pump technology, specifically to a high-efficiency, long-life variable speed circulating pump and its components. Background Technology

[0002] A circulating pump is a mechanical device that uses the rotation of an impeller to generate power, causing fluid to circulate continuously in a pipe or system. It uses a motor to drive the impeller to rotate at high speed, applying force to the fluid, reducing flow resistance, and maintaining directional circulation. Circulating pumps play a crucial role in various scenarios: in heating systems, they continuously circulate hot water, allowing heat to be evenly distributed throughout the rooms; in industrial cooling systems, they circulate coolant, carrying away the heat generated by equipment operation and ensuring normal equipment function; in water treatment systems, they drive water flow to achieve purification, filtration, and other treatment processes, ensuring water quality meets standards.

[0003] In modern circulating pumps, the controller or frequency converter is often directly connected to the pump body. However, during operation, the internal motor continuously runs, and the impeller rubs against the liquid, consuming energy and converting it into heat. This heat is transferred to the controller or frequency converter housing connected to the pump body. If this heat cannot dissipate in time, the temperature of the internal electronic components of the controller or frequency converter will rise, accelerating component aging and reducing their lifespan. When the temperature exceeds the normal operating range of the components, it can cause circuit failures, leading to abnormal control signal transmission, unstable frequency converter output, and other problems. This, in turn, can cause fluctuations in the pump's speed and uneven flow, affecting the normal operation of the entire system. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency, long-life variable speed circulating pump and its components to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-efficiency, long-life variable speed circulating pump, comprising:

[0007] A circulating pump has a pump chamber fixedly connected to its lower part. An inlet pipe and a drain pipe are fixedly connected to both ends of the pump chamber, and the inlet pipe and the drain pipe are connected by a pipeline, which is installed inside the pump chamber.

[0008] The inverter has a connecting part fixedly installed at its bottom, which is connected to the inside of the circulating pump. The inverter has a heat insulation plate installed inside, and a cavity is formed between the heat insulation plate and the connecting part. A first heat conduction groove is fixedly connected to the connecting part for heat dissipation and a second heat conduction groove is connected to the cover.

[0009] Preferably, the cover has a heat dissipation vent, and a second heat conduction groove is fixedly connected below the heat dissipation vent. When the cover is combined with the frequency converter, the second heat conduction groove is inserted into the first heat conduction groove.

[0010] Preferably, the cover is provided with multiple buttons, the positions of which correspond to the button positions on the control board inside the inverter. Inverter components are fixedly connected to the heat insulation plate, and a power cord is fixedly connected to the side of the inverter for supplying power to the inverter components.

[0011] Preferably, a first connecting block is fixedly connected to the side of the frequency converter, and a connecting groove is provided on the first connecting block; a second connecting block is fixedly connected to the side of the cover, and a connecting strip is fixedly connected to the second connecting block.

[0012] A circulating pump assembly, comprising:

[0013] The circulating pump described in any of the foregoing technical solutions;

[0014] The filter assembly includes a connecting pipe, which is fixedly connected to the side of the pump chamber. The connecting pipe passes through the pump chamber and is connected to the side wall of the internal pipe. A first sealing ring is fixedly connected inside the connecting pipe.

[0015] Preferably, the filter assembly further includes a filter ball, which is inserted into the pipe through a connecting pipe to filter the water entering the water inlet pipe. The filter ball is hollow inside, and multiple filter holes are opened on the surface of the filter ball. A connecting cylinder is fixedly connected to the side of the filter ball, and the other end of the connecting cylinder is fixedly connected to the lower end face of the rubber block. The upper end face of the rubber block is engaged with the lower end face of the first sealing ring.

[0016] Preferably, a connecting rod is fixedly connected to the center of the upper end face of the rubber block, a circular handle is fixedly connected to the top of the connecting rod, a tension spring is fixedly connected to the top of the handle, and a movable block is fixedly connected to the other end of the tension spring. The movable block is inserted into the sealing cover through a circular groove.

[0017] Preferably, a second sealing ring is fixedly connected to the lower edge of the sealing cover, a movable groove is provided on the side of the circular groove, the other end of the movable groove extends to the center of the sealing cover, and the sealing cover is fixedly connected to the connecting pipe by bolts.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention features a connecting section at the bottom of the frequency converter, divided by a heat insulation plate. The cavity is connected to the external space via a first and a second heat-conducting groove. The heat generated by the circulating pump enters the cavity through the connecting section and is then dissipated to the outside through the heat-conducting groove. This heat dissipation ensures that all components of the circulating pump operate at a suitable temperature, maintains the performance of the seals, reduces bearing wear, and extends the service life of the circulating pump. This ensures stable and efficient operation of the circulating pump and guarantees the normal operation of the entire circulating pump.

[0020] This utility model features a connecting block between the cover and the frequency converter. By cooperating with the connecting strip and the connecting groove, the cover and the frequency converter can be closed. The operation is simple and does not require tools, making it easy to open the cover at any time to inspect, repair or replace the internal parts of the frequency converter.

[0021] This invention, by setting up a filter component, prevents impurities from entering the circulating pump with the water flow, effectively protecting the pump's impeller, pump body, and other key components, preventing damage due to wear or blockage caused by impurities, extending the service life of the circulating pump, and ensuring smooth liquid flow in the pipeline, thereby improving the working efficiency of the circulating pump.

[0022] In this invention, the filter assembly can be quickly removed by the handle, causing the rubber block to deform and detach from the first sealing ring, thus making it easy to remove and convenient for replacing the filter assembly or cleaning the filter ball before reinstalling it back into the pipeline. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this utility model from another perspective;

[0025] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the frequency converter of this utility model;

[0026] Figure 4 This is a three-dimensional schematic diagram of the internal installation of the frequency converter of this utility model;

[0027] Figure 5 This is a three-dimensional schematic diagram of the connection between the box lid and the partition of this utility model;

[0028] Figure 6 This is a three-dimensional schematic diagram of the connection between the cover and the frequency converter of this utility model;

[0029] Figure 7 A three-dimensional schematic diagram of the filter assembly of this utility model;

[0030] Figure 8 This is a three-dimensional schematic diagram of the internal structure of the filter assembly of this utility model;

[0031] Figure 9 This is a three-dimensional schematic diagram of the connecting pipe of this utility model;

[0032] Figure 10 This is a three-dimensional schematic diagram of the connecting rod and handle of this utility model.

[0033] In the diagram: 1-Circulating pump; 2-Pump chamber; 201-Pipe; 3-Inlet pipe; 4-Drain pipe; 5-Power cord; 6-Inverter; 601-First connecting block; 602-Connecting groove; 603-Display screen; 604-Control board; 605-First heat conduction groove; 606-Cavity; 607-Heat insulation plate; 7-Cover; 701-Second connecting block; 702-Connecting strip; 703-Button; 704-Heat dissipation vent; 7 05-Second heat conduction groove; 8-Connecting part; 9-Connecting pipe; 901-First sealing ring; 10-Sealing cover; 1001-Bolt; 1002-Second sealing ring; 1003-Moving groove; 1004-Circular groove; 11-Rubber block; 1101-Connecting rod; 1102-Handle; 1103-Tension spring; 1104-Moving block; 1105-Filter ball; 1106-Filter hole; 1107-Connecting cylinder. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1:

[0036] Please see Figures 1 to 6 This utility model provides a technical solution:

[0037] A high-efficiency, long-life variable speed circulating pump, comprising:

[0038] A circulating pump 1 is fixedly connected to a pump chamber 2 at its lower end. A water inlet pipe 3 and a water outlet pipe 4 are fixedly connected to both ends of the pump chamber 2, respectively. The water inlet pipe 3 and the water outlet pipe 4 are connected by a pipe 201, which is installed inside the pump chamber 2.

[0039] The inverter 6 has a connecting part 8 fixedly installed at its bottom. The connecting part 8 is connected to the inside of the circulating pump 1. The inverter 6 has a heat insulation plate 607 installed inside. A cavity 606 is formed between the heat insulation plate 607 and the connecting part 8. A first heat conduction groove 605 is fixedly connected to the connecting part 8 for heat dissipation and a second heat conduction groove 705 connected to the cover 7.

[0040] In this embodiment, when the circulating pump 1 is running, the internal motor continuously operates, and the impeller rubs against the liquid, all of which consume energy and convert it into heat energy. The heat energy is stored inside the housing above the circulating pump 1 and enters the cavity 606 below the frequency converter 6 through the connecting part 8 on the side of the circulating pump 1 housing. The cavity 606 inside the frequency converter 6 is separated by a heat insulation plate 607. A circuit board is provided above the heat insulation plate 607. The circuit board is electrically connected to the display screen 603, control board 604 and other frequency converter components. A rubber pad (not shown in the figure) is provided between the circuit board and the heat insulation plate 607. The rubber pad can serve as an additional heat insulation layer to help the heat insulation plate 607 reduce heat transfer, prevent excessively high temperatures from affecting the performance and lifespan of the components on the circuit board, and prevent leakage between the circuit board and the heat insulation plate 607, avoiding short circuit faults and ensuring the safety of operators and the normal operation of the frequency converter 6.

[0041] The top of the heat insulation plate 607 has a first heat conduction groove 605, which is inserted into the second heat conduction groove 705 at the lower end of the cover 7. Heat is conducted through the first heat conduction groove 605 to the second heat conduction groove 705, and then dissipated through the heat dissipation vent 704 on the cover 7, thereby achieving heat dissipation. Heat dissipation can ensure that the components of the circulating pump 1 work at a suitable temperature, maintain the performance of the seals, reduce bearing wear, and extend the service life of the circulating pump 1, ensuring the stable and efficient operation of the circulating pump 1 and guaranteeing the normal operation of the entire circulating pump 1.

[0042] Specifically, users can adjust the parameters of the frequency converter 6 by pressing buttons, and adjust the motor speed by changing the power supply frequency, thereby controlling the flow and head of the circulating pump 1 to achieve speed change and meet the needs of different working conditions.

[0043] Specifically, the cover 7 has a heat dissipation vent 704, and a second heat conduction groove 705 is fixedly connected below the heat dissipation vent 704. When the cover 7 and the inverter 6 are combined, the second heat conduction groove 705 is inserted into the first heat conduction groove 605.

[0044] Specifically, the cover 7 is provided with multiple buttons, the positions of which correspond to the positions of buttons 703 on the control board 604 inside the inverter 6. The heat insulation plate 607 is provided with inverter components such as the display screen 603 and the control board 604 via a circuit board. A rubber pad is provided between the circuit board and the heat insulation plate 607. A power cord 5 is fixedly connected to the side of the inverter 6 for supplying power to the inverter components.

[0045] In this embodiment, the connecting strip 702 on the second connecting block 701 on the side of the cover 7 is aligned with the connecting groove 602 on the first connecting block 601 on the side of the inverter 6, and then pushed in to complete the closure of the cover 7 and the inverter 6. The operation is simple and does not require tools, making it easy to open the cover 7 at any time to inspect, repair or replace the internal parts of the inverter 6. Furthermore, the connecting strip 702 and the connecting groove 602 fit tightly together, making the connection between the cover 7 and the inverter 6 stable.

[0046] Specifically, a first connecting block 601 is fixedly connected to the side of the inverter 6, and a connecting groove 602 is provided on the first connecting block 601. A second connecting block 701 is fixedly connected to the side of the cover 7, and a connecting strip 702 is fixedly connected to the second connecting block 701.

[0047] Example 2:

[0048] Please see Figures 7 to 10 This utility model also provides a technical solution:

[0049] A circulating pump assembly, comprising:

[0050] The circulating pump 1 described in any of the foregoing technical solutions;

[0051] The filter assembly includes a connecting pipe 9, which is fixedly connected to the side of the pump chamber 2. The connecting pipe 9 passes through the pump chamber 2 and is connected to the side wall of the internal pipe 201. A first sealing ring 901 is fixedly connected inside the connecting pipe 9.

[0052] In this embodiment, the connecting pipe 9 is inserted from one side of the pump chamber 2 and connected to the side wall of the pipe 201. A first sealing ring 901 is fixedly connected to the inner wall of the connecting pipe 9. Holding the handle, the rubber block 11 connected to the bottom end of the connecting rod 1101 is squeezed into the first sealing ring 901 through the connecting rod 1101. Because rubber has elasticity and resilience, and the outer diameter of the rubber block 11 is larger than the inner diameter of the first sealing ring 901, the rubber block 11 is deformed by the inner wall of the first sealing ring 901 when it enters the first sealing ring 901. After passing through the first sealing ring 901, the rubber block 11 returns to its original shape due to its own elasticity. After the upper end surface returns to its original shape, it fits against the lower end surface of the first sealing ring 901 to prevent liquid leakage. A tension spring 1103 is fixedly connected to the upper end of the handle, and a movable spring 1103 is fixedly connected to the top of the tension spring 1103. Move block 1104, pull tension spring 1103 by hand, and put moving block 1104 into sealing cover 10 from circular groove 1004. There is a hollow interlayer in sealing cover 10 for moving block 1104 to slide. Move tension spring 1103 and moving block 1104 along moving groove 1003 to the center of sealing cover 10. After sealing cover 10 is installed, the distance between moving block 1104 and handle 1102 is sufficient to allow tension spring 1103 to deform and generate restoring tension. The tension of tension spring 1103 will be transmitted to rubber block 11 through handle and connecting rod 1101, making the fit between rubber block 11 and first sealing ring 901 tighter. Even if the liquid pressure in pipe 201 is high, it is difficult to seep out from the connection between rubber block 11 and first sealing ring 901, thus enhancing the sealing effect of connecting pipe 9.

[0053] A second sealing ring 1002 is provided on the lower end face of the sealing cover 10. If a small amount of liquid seeps out from the connection between the rubber block 11 and the first sealing ring 901, the sealing cover 10 and the second sealing ring 1002 isolate the external air from entering, forming a relatively closed space. The pressure of the gas will prevent the liquid from entering between the rubber block 11 and the sealing cover 10.

[0054] In this embodiment, after the rubber block 11 and the second sealing ring 1002 are installed in place, the filter ball 1105 is placed exactly in the center of the pipe 201. The water flowing in from the inlet pipe 3 needs to pass through the filter ball 1105. The surface of the filter ball 1105 has multiple filter holes 1106 and is hollow inside. The water flows into the filter ball 1105 through the filter holes 1106. Impurities in the water, such as sand, rust, and debris, are intercepted outside the filter holes 1106 or left inside the filter ball 1105, preventing impurities from entering the circulation pump 1 with the water flow. This effectively protects the impeller, pump body, and other key components of the circulation pump 1, preventing them from being damaged by wear or blockage caused by impurities, extending the service life of the circulation pump 1, and ensuring smooth flow of liquid in the pipe 201, thus improving the working efficiency of the circulation pump 1.

[0055] Specifically, the filter assembly also includes a filter ball 1105, which is inserted into the pipe 201 through the connecting pipe 9 to filter the water entering the water inlet pipe 3. The filter ball 1105 is hollow inside, and multiple filter holes 1106 are opened on the surface of the filter ball 1105. A connecting cylinder 1107 is fixedly connected to the side of the filter ball 1105, and the other end of the connecting cylinder 1107 is fixedly connected to the lower end face of the rubber block 11. The upper end face of the rubber block 11 is engaged with the lower end face of the first sealing ring 901.

[0056] Specifically, a connecting rod 1101 is fixedly connected to the center of the upper end face of the rubber block 11, a circular handle 1102 is fixedly connected to the top of the connecting rod 1101, a tension spring 1103 is fixedly connected to the top of the handle 1102, and a moving block 1104 is fixedly connected to the other end of the tension spring 1103. The moving block 1104 is inserted into the sealing cover 10 through the circular groove 1004.

[0057] Specifically, the filter assembly can be easily removed by pulling the handle to deform the rubber block 11 and detach it from the first sealing ring 901, making it convenient to replace the filter assembly or clean the filter ball 1105 before reinstalling it back into the pipe 201.

[0058] Specifically, a second sealing ring 1002 is fixedly connected to the lower edge of the sealing cover 10, and a moving groove 1003 is provided on the side of the circular groove 1004. The other end of the moving groove 1003 extends to the center of the sealing cover 10, and the sealing cover 10 is fixedly connected to the connecting pipe 9 by bolts 1001.

[0059] When this utility model is in use, the internal motor of the circulating pump 1 continuously runs, and the impeller rubs against the liquid, consuming energy and converting it into heat energy. The heat energy is stored inside the housing above the circulating pump 1 and enters the cavity 606 below the frequency converter 6 through the connecting part 8 on the side of the circulating pump 1 housing. The cavity 606 inside the frequency converter 6 is separated by a heat insulation plate 607. A circuit board is provided above the heat insulation plate 607. The circuit board is electrically connected to the display screen 603, control board 604 and other frequency converter components. A rubber pad (not shown in the figure) is provided between the circuit board and the heat insulation plate 607. The rubber pad can serve as an additional heat insulation layer to help the heat insulation plate 607 reduce heat transfer, prevent excessively high temperatures from affecting the performance and lifespan of the components on the circuit board, and prevent leakage between the circuit board and the heat insulation plate 607, avoiding short circuit faults and ensuring the safety of operators and the normal operation of the frequency converter 6.

[0060] The top of the heat insulation plate 607 has a first heat conduction groove 605, which is inserted into the second heat conduction groove 705 at the lower end of the cover 7. Heat is conducted through the first heat conduction groove 605 to the second heat conduction groove 705, and then dissipated through the heat dissipation vent 704 on the cover 7, thereby achieving heat dissipation. Heat dissipation can ensure that the components of the circulating pump 1 work at a suitable temperature, maintain the performance of the seals, reduce bearing wear, extend the service life of the circulating pump 1, ensure the stable and efficient operation of the circulating pump 1, and ensure the normal operation of the entire circulating pump 1.

[0061] The connecting pipe 9 is inserted from one side of the pump chamber 2 and connects to the side wall of the pipe 201. A first sealing ring 901 is fixedly connected to the inner wall of the connecting pipe 9. Holding the handle, the rubber block 11 connected to the bottom end of the connecting rod 1101 is squeezed into the first sealing ring 901 through the connecting rod 1101. Because rubber has elasticity and resilience, and the outer diameter of the rubber block 11 is larger than the inner diameter of the first sealing ring 901, the rubber block 11 is squeezed and deformed by the inner wall of the first sealing ring 901 when it enters the first sealing ring 901. After passing through the first sealing ring 901, the rubber block 11 returns to its original shape due to its own elasticity. After the upper end surface returns to its original shape, it fits against the lower end surface of the first sealing ring 901 to prevent liquid leakage. A tension spring 1103 is fixedly connected to the upper end of the handle, and a moving block 1 is fixedly connected to the top of the tension spring 1103. 104. Hold the tension spring 1103 by hand and insert the moving block 1104 from the circular groove 1004 into the sealing cover 10. The sealing cover 10 has a hollow interlayer for the moving block 1104 to slide. Move the tension spring 1103 and the moving block 1104 along the moving groove 1003 to the center of the sealing cover 10. After the sealing cover 10 is installed, the distance between the moving block 1104 and the handle 1102 is sufficient to allow the tension spring 1103 to deform and generate a restoring tension. The tension of the tension spring 1103 will be transmitted to the rubber block 11 through the handle and the connecting rod 1101, making the fit between the rubber block 11 and the first sealing ring 901 tighter. Even if the liquid pressure in the pipe 201 is high, it is difficult for it to leak from the connection between the rubber block 11 and the first sealing ring 901, thus enhancing the sealing effect of the connecting pipe 9.

[0062] After the rubber block 11 and the second sealing ring 1002 are installed in place, the filter ball 1105 is placed exactly in the center of the pipe 201. The water flowing in from the inlet pipe 3 needs to pass through the filter ball 1105. The surface of the filter ball 1105 has multiple filter holes 1106 and is hollow inside. The water flows into the filter ball 1105 through the filter holes 1106. Impurities in the water, such as sand, rust, and debris, are intercepted outside the filter holes 1106 or left inside the filter ball 1105, preventing impurities from entering the circulation pump 1 with the water flow. This effectively protects the impeller, pump body and other key components of the circulation pump 1, preventing them from being damaged by wear or blockage caused by impurities, extending the service life of the circulation pump 1, and ensuring smooth flow of liquid in the pipe 201, thus improving the working efficiency of the circulation pump 1.

[0063] All other parts of this utility model not described herein are the same as existing technologies, or are known technologies, or can be implemented using existing technologies, and will not be described in detail here.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency, long-life variable speed circulating pump, characterized in that, include: A circulating pump (1) is fixedly connected to a pump chamber (2) below the circulating pump (1). A water inlet pipe (3) and a water outlet pipe (4) are fixedly connected to both ends of the pump chamber (2). The water inlet pipe (3) and the water outlet pipe (4) are connected by a pipe (201). The pipe (201) is set inside the pump chamber (2). The inverter (6) has a connecting part (8) fixedly installed at the bottom. The connecting part (8) is connected to the inside of the circulating pump (1). The inverter (6) has a heat insulation plate (607) installed inside. A cavity (606) is formed between the heat insulation plate (607) and the connecting part (8). A first heat conduction groove (605) is fixedly connected to the connecting part (8), and a second heat conduction groove (705) is used for heat dissipation and connecting to the cover (7).

2. The high-efficiency, long-life variable speed circulating pump according to claim 1, characterized in that: The cover (7) has a heat dissipation vent (704), and a second heat conduction groove (705) is fixedly connected below the heat dissipation vent (704). When the cover (7) and the inverter (6) are combined, the second heat conduction groove (705) is inserted into the first heat conduction groove (605).

3. The high-efficiency, long-life variable speed circulating pump according to claim 2, characterized in that: The cover (7) is provided with multiple buttons, the positions of which correspond to the positions of the buttons (703) on the control board (604) inside the inverter (6). The inverter components are fixedly connected to the heat insulation plate (607), and a power cord (5) is fixedly connected to the side of the inverter (6) for supplying power to the inverter components.

4. The high-efficiency, long-life variable speed circulating pump according to claim 3, characterized in that: The inverter (6) is fixedly connected to a first connecting block (601) on its side, and a connecting groove (602) is provided on the first connecting block (601). The cover (7) is fixedly connected to a second connecting block (701) on its side, and a connecting strip (702) is fixedly connected on the second connecting block (701).

5. A circulating pump assembly, characterized in that, include: The high-efficiency, long-life variable-speed circulating pump according to any one of claims 1-4; The filter assembly includes a connecting pipe (9), which is fixedly connected to the side of the pump chamber (2). The connecting pipe (9) passes through the pump chamber (2) and is connected to the side wall of the internal pipe (201). A first sealing ring (901) is fixedly connected inside the connecting pipe (9).

6. A circulating pump assembly according to claim 5, characterized in that: The filter assembly also includes a filter ball (1105), which is inserted into the pipe (201) through the connecting pipe (9) to filter the water flow entering the water inlet pipe (3). The filter ball (1105) is hollow inside, and multiple filter holes (1106) are opened on the surface of the filter ball (1105). A connecting cylinder (1107) is fixedly connected to the side of the filter ball (1105), and the other end of the connecting cylinder (1107) is fixedly connected to the lower end face of the rubber block (11). The upper end face of the rubber block (11) is engaged with the lower end face of the first sealing ring (901).

7. A circulating pump assembly according to claim 6, characterized in that: A connecting rod (1101) is fixedly connected to the center of the upper end face of the rubber block (11). A circular handle (1102) is fixedly connected to the top of the connecting rod (1101). A tension spring (1103) is fixedly connected to the top of the handle (1102). A moving block (1104) is fixedly connected to the other end of the tension spring (1103). The moving block (1104) is inserted into the sealing cover (10) through the circular groove (1004).

8. A circulating pump assembly according to claim 7, characterized in that: The lower end face edge of the sealing cover (10) is fixedly connected to a second sealing ring (1002), and a moving groove (1003) is provided on the side of the circular groove (1004). The other end of the moving groove (1003) extends to the center of the sealing cover (10), and the sealing cover (10) is fixedly connected to the connecting pipe (9) by bolts (1001).

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