Intelligent water pump with improved structure

Abstract

The utility model relates to an intelligent water pump with an improved structure, which comprises a machine barrel and a pump body arranged at the end part of the machine barrel, an impeller is arranged in a pump cavity of the pump body, a motor for driving the impeller to rotate is arranged in the machine barrel, and an intelligent control module is arranged on the outer side of the pump body. A water flow detection switch and a pressure detection switch of the intelligent control module are both arranged in a shell of the intelligent control module, a detection chamber is arranged in the shell for placing a water flow induction main body and a pressure induction main body, and therefore water flow parameters in the detection chamber can be detected in time to control the water pump to operate intelligently. In addition, the water flow sensing main body and the pressure sensing main body can be separated from the shell from inside to outside to realize quick assembly or quick disassembly, so that the complexity of the internal structure of the intelligent control module in the prior art is greatly simplified, and the assembly process of the intelligent control module is simplified; therefore, the structure and the assembly of the intelligent control module are simpler, and meanwhile, the complexity of the pump body can be simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump control, and relates to an intelligent water pump with an improved structure. Background Art

[0002] A water pump is a device that transports fluids through the rotation of a motor, and an automatic water pump refers to a fluid pump in which the fluid is automatically controlled. In order to achieve automatic control of the water pump, a pressure switch is generally installed at the fluid outflow channel of the pump body, and a check valve is installed at the fluid inflow channel of the pump body. The pressure switch in the pump body cooperates with the check valve to achieve the effect of automatic stopping and starting. The pressure switch is used to detect the fluid hydraulic pressure in the fluid outflow channel. When the hydraulic pressure in the fluid outflow channel is higher than the set value, the power supply of the fluid pump motor is cut off and the motor stops rotating; when the hydraulic pressure in the fluid outflow channel is lower than the set value, the power supply of the fluid pump motor is connected and the motor starts rotating. The earliest automatic water pump, whose pressure sensor and check valve are installed inside the pump body, has very limited space inside the pump body. Installing a pressure switch and a check valve inside will undoubtedly increase the structural complexity of the fluid pump, and increase the manufacturing difficulty and manufacturing cost of the fluid pump.

[0003] Therefore, some automatic water pumps that can set pressure sensors outside the pump body appeared later, such as the "A Fluid Pump Intelligent Controller" disclosed in the Chinese Utility Model Patent Application No. 201821262734.7 (Authorization Announcement No. CN208702660U), which includes a shell with a flow channel inside, one end of the shell is provided with a water inlet connection end for connecting to the water outlet end of the fluid pump, the other end of the shell is provided with a water outlet connection end for connecting to an external water pipe, and the water inlet connection end of the flow channel is provided with a sensor that can sense the flow of fluid therein and control the start and stop of the motor of the fluid pump. The valve structure has a flow channel with a pump body pressure detection port, and a fluid pressure detection sensor is provided in the outer shell to control whether the motor of the fluid pump is started by sensing the hydraulic pressure changes in the flow channel. The fluid pressure detection sensor is connected to the pump body pressure detection port, so that the user can install the fluid pump intelligent controller directly on the existing fluid pump, and the fluid pump intelligent controller can be used to control the operation of the fluid pump, which simplifies the structure of the fluid pump and makes the operation more convenient. By installing one fluid pump intelligent controller on different fluid pumps, the operation control of most existing fluid pumps can be completed.

[0004] However, although this type of intelligent controller can reduce the complexity of the fluid pump that is matched with it during use, it also has shortcomings: in order to adapt to different water pumps, the entire intelligent controller must be integrated into one, resulting in a more complex internal structure of the intelligent controller and cumbersome assembly, which increases the overall manufacturing cost of the intelligent controller to a certain extent.

[0005] Therefore, how to provide an intelligent water pump that can simplify the overall structure of the pump body, better integrate the control module for automatically controlling the water pump with the pump body, and also make the structure and assembly of the control module simpler is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide an intelligent water pump with an improved structure, which can make the structures and assemblies of the pump body and the automatic control module simpler by optimizing the connection structure between the pump body and the automatic control module, aiming at the above-mentioned prior art.

[0007] The technical solution adopted by the present invention to solve the above technical problems is as follows: An intelligent water pump with an improved structure includes a barrel and a pump body provided at the end of the barrel. A pump chamber is formed inside the pump body, and an impeller is disposed in the pump chamber. A motor for driving the impeller to rotate is provided in the barrel. An inlet and a first outlet communicating with the pump chamber are further provided on the pump body. An intelligent control module is also provided on the pump body. The intelligent control module includes a housing, a water flow detection switch and a pressure detection switch. The housing is detachably connected to the outer wall of the pump body. A detection chamber communicating with the first outlet is formed inside the housing. A second outlet for allowing the fluid in the detection chamber to flow out is further provided on the housing. The water flow sensing body of the water flow detection switch and the pressure sensing body of the pressure detection switch are both disposed inside the detection chamber to detect water flow parameters for controlling the intelligent operation of the water pump, and both the water flow sensing body and the pressure sensing body can be detached from the housing from the inside out to achieve rapid assembly or disassembly.

[0008] In order to optimize the internal structure of the detection chamber, so that it can better accommodate the water flow sensing body and the pressure sensing body while also facilitating the assembly or disassembly of the water flow sensing body and the pressure sensing body, preferably, the detection chamber includes a first detection chamber and a second detection chamber that communicate with each other. The first detection chamber has an opening at the bottom to facilitate the water flow sensing body of the water flow detection switch to enter the first detection chamber from the outside to the inside. The second detection chamber has an opening at the side to facilitate the pressure sensing body of the pressure detection switch to enter the second detection chamber from the outside to the inside.

[0009] In order to enable the outer shell to be better docked on the pump body and enable the water flow detection switch to be quickly disassembled or assembled, preferably, a first docking surface is formed at the bottom of the outer shell, a second docking surface adapted to the first docking surface is formed on the pump body, the first water outlet is arranged on the second docking surface, the bottom opening of the first detection chamber is arranged on the first docking surface and docked to the first water outlet, the pump body and the outer shell are detachably connected together by setting a first fastener, the water flow sensing body of the water flow detection switch is arranged at the bottom opening of the first detection chamber, and in a state where the pump body and the outer shell are disassembled and separated, the water flow sensing body can be detached from the outer shell from the inside out, and a first magnetic component matched with the water flow sensing body is arranged on the side of the outer shell to facilitate the water flow detection switch to sense water flow.

[0010] In order to enable the pressure detection switch to be better installed in the outer shell and enable the pressure detection switch to be quickly disassembled or assembled, preferably, a cover for closing the side opening is further arranged at the side opening of the second detection chamber, so as to facilitate the pressure sensing body of the pressure detection switch to be assembled from the outside in or disassembled from the inside out, and a second magnetic component matched with the pressure sensing body is arranged on the cover to facilitate the pressure detection switch to sense pressure.

[0011] In order to enable the cover to be better opened or closed, preferably, a first internal thread is arranged on the inner wall of the side opening of the second detection chamber, a connecting portion capable of extending into the side opening is formed on the cover, and an external thread capable of being threadedly connected to the first internal thread is arranged on the outer side wall of the connecting portion.

[0012] In order to facilitate the connection of the water pump to an external water pipe, preferably, a connecting sleeve for connecting to the external water pipe is further arranged at the second water outlet of the outer shell, and a second internal thread for facilitating the quick assembly or disassembly of the water pipe is arranged on the inner wall of the connecting sleeve.

[0013] In order to prevent the water flow in the pump body from flowing back, preferably, a check valve for preventing water flow back is arranged at the water inlet of the pump body, a valve cover is further arranged outside the check valve, the valve cover is detachably connected to the pump body by setting a third fastener, and a through hole capable of penetrating the water inlet is arranged on the valve cover.

[0014] To optimize the overall structure of the check valve and enable it to better extend its service life, preferably, the check valve includes a valve seat and a valve stem. The valve seat has a valve port for water flow to pass through. The valve stem is inserted through the valve seat and can slide up and down relative to the valve seat. A valve disc assembly for blocking the valve port is provided at the first end of the valve stem below the valve seat. A return spring is also provided between the valve stem and the valve seat, which can always keep the valve stem in an upward movement trend to drive the valve disc assembly to block the valve port without external force. The valve seat is also provided with a first limiting portion extending upward. A second limiting portion adapted to the first limiting portion is provided at the second end of the valve stem above the valve seat. The valve disc assembly can overcome the elastic force of the return spring under the impact of water flow and drive the valve stem to move downward to open the valve port. During the downward movement of the valve stem from top to bottom, the second limiting portion can abut against the first limiting portion to limit the excessive downward movement of the valve stem to improve the fatigue strength of the return spring.

[0015] To optimize the overall structure of the water pump and enable it to better achieve intelligent control, preferably, a control box is also provided on the outer side of the barrel. A control board and a power supply for power supply are provided in the control box. The control board is electrically connected to a water flow detection switch, a pressure detection switch, and a motor to control the intelligent operation of the motor according to the detected water flow parameters.

[0016] Compared with the prior art, the advantages of the present utility model are as follows: By providing an intelligent control module on the outer side of the pump body, and making the water flow detection switch and the pressure detection switch of the intelligent control module both built on the outer shell of the intelligent control module, and also by providing a detection chamber in the outer shell for placing the water flow sensing body of the water flow detection switch and the pressure sensing body of the pressure detection switch, the water flow parameters passing through the detection chamber can be detected in time to control the intelligent operation of the water pump. In addition, by enabling both the water flow sensing body and the pressure sensing body to be detached from the outer shell from inside to outside, rapid assembly or rapid disassembly is achieved, thus greatly simplifying the internal structural complexity of the intelligent control module in the prior art and also simplifying the assembly process of the intelligent control module, and further making the structure and assembly of the intelligent control module simpler. Moreover, since the intelligent control module is placed on the outer side of the pump body for mutual docking, while achieving rapid assembly or rapid disassembly, there is no need to additionally provide an installation space inside the pump body, which also simplifies the complexity of the pump body to a certain extent and finally reduces the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of this embodiment;

[0018] Figure 2 is an exploded state structural schematic diagram of this embodiment;

[0019] Figure 3 is a cross-sectional schematic diagram of this embodiment;

[0020] Figure 4 is a schematic diagram of the decomposed state structure of the intelligent control module in this embodiment;

[0021] Figure 5 is a schematic cross-sectional view of the intelligent control module in this embodiment (the cross-sectional position is at the first magnetic component);

[0022] Figure 6 is a schematic cross-sectional view of the intelligent control module in this embodiment (the cross-sectional position is at the second magnetic component);

[0023] Figure 7 is a schematic cross-sectional view of the check valve in this embodiment. Detailed implementation manners

[0024] The following further describes the present utility model in detail with reference to the embodiments of the drawings.

[0025] Figures 1 to 7 The shown is a schematic diagram of this embodiment. The structurally improved intelligent water pump in this embodiment mainly includes a barrel 1, a pump body 2, a motor 3, an intelligent control module 4, a check valve 7, etc.

[0026] Refer to Figures 1 to 3 As shown, the pump body 2 is arranged at the end of the barrel 1. A pump chamber 2a is formed inside the pump body 2. An impeller 2b is arranged inside the pump chamber 2a. The motor 3 is arranged in the pump chamber 2a of the barrel 1 to drive the impeller 2b to rotate. The pump body 2 is also provided with a water inlet 2c and a first water outlet 2d communicating with the pump chamber 2a. It is characterized in that: an intelligent control module 4 is further included and arranged on the pump body 2. The intelligent control module 4 includes a housing 4a, a water flow detection switch 4b and a pressure detection switch 4c. The housing 4a is detachably connected to the outer wall of the pump body 2. A detection chamber 5 communicating with the first water outlet 2d is also formed inside the housing 4a. The housing 4a is also provided with a second water outlet 4a1 communicating with the detection chamber 5 for the fluid in the detection chamber 5 to flow out. The water flow sensing body 41 of the water flow detection switch 4b and the pressure sensing body 42 of the pressure detection switch 4c are both arranged inside the detection chamber 5 to detect water flow parameters to control the intelligent operation of the water pump, and both the water flow sensing body 41 and the pressure sensing body 42 can be detached from the housing 4a from the inside to the outside to achieve rapid assembly or disassembly.

[0027] Among them, in order to optimize the internal structure of the detection chamber 5 so that it can better accommodate the water flow sensing body 41 and the pressure sensing body 42 while also facilitating the assembly or disassembly of the water flow sensing body 41 and the pressure sensing body 42, refer to Figures 4 to 6As shown, in this embodiment, the detection chamber 5 includes a first detection chamber 5a and a second detection chamber 5b that are in communication with each other. The first detection chamber 5a has a bottom opening 5a1 to facilitate the water flow sensing body 41 of the water flow detection switch 4b to enter the first detection chamber 5a from the outside to the inside. The second detection chamber 5b has a side opening 5b1 to facilitate the pressure sensing body 42 of the pressure detection switch 4c to enter the second detection chamber 5b from the outside to the inside.

[0028] Secondly, in order to enable the outer shell 4a to be better docked on the pump body 2 and enable the water flow detection switch 4b to be quickly disassembled or assembled, referring to Figure 2 and Figure 5 As shown, in this embodiment, a first docking surface 4a2 is formed at the bottom of the outer shell 4a, and a second docking surface 2e that can be adapted to the first docking surface 4a2 is formed on the pump body 2. The first water outlet 2d is provided on the second docking surface 2e. The bottom opening 5a1 of the first detection chamber 5a is provided on the first docking surface 4a2 and is docked to the first water outlet 2d. The pump body 2 and the outer shell 4a are detachably connected together by providing a first fastener 6. The water flow sensing body 41 of the water flow detection switch 4b is provided at the bottom opening 5a1 of the first detection chamber 5a. When the pump body 2 and the outer shell 4a are in a disassembled and separated state, the water flow sensing body 41 can be detached from the outer shell 4a from the inside to the outside, and a first magnetic component 43 that matches the water flow sensing body 41 is provided on the side of the outer shell 4a to facilitate the water flow detection switch 4b to perform water flow sensing.

[0029] Furthermore, in order to enable the pressure detection switch 4c to be better installed in the outer shell 4a, referring to Figure 2 and Figure 6 As shown, in this embodiment, a cover 5b2 for closing the side opening 5b1 is further provided at the side opening 5b1 of the second detection chamber 5b, so as to facilitate the assembly of the pressure sensing body 42 of the pressure detection switch 4c from the outside to the inside or the disassembly from the inside to the outside. A second magnetic component 44 that matches the pressure sensing body 42 is provided on the cover 5b2 to facilitate the pressure detection switch 4c to perform pressure sensing.

[0030] It should be explained here that the water flow detection switch 4b and the pressure detection switch 4c here both belong to the prior art. The water flow detection switch 4b mainly includes a water flow sensing body 41 and a first magnetic component 43, and realizes water flow sensing according to the mutual induction between the water flow sensing body 41 and the first magnetic component 43. The pressure detection switch 4c mainly includes a pressure sensing body 42 and a second magnetic component 44, and realizes pressure sensing according to the mutual induction between the pressure sensing body 42 and the second magnetic component 44. Among them, the water flow detection switch 4b is mainly used to control the start of the motor 3, and the pressure detection switch 4c mainly controls the shutdown or speed reduction of the motor 3. Since the intelligent control of the water pump using the water flow detection switch 4b and the pressure detection switch 4c belongs to the prior art, the working principle will not be specifically elaborated here, and only the installation structure of the pump body 2 and the intelligent control module 4 will be improved and optimized.

[0031] In this embodiment, in order to enable the cover 5b2 to be better opened or closed, refer to Figure 2 As shown, in this embodiment, a first internal thread 5b3 is provided on the inner wall of the side opening 5b1 of the second detection chamber 5b. A connecting portion 5b4 that can extend into the side opening 5b1 is formed on the cover 5b2, and an external thread 5b5 that can be threadedly connected to the first internal thread 5b3 is provided on the outer side wall of the connecting portion 5b4.

[0032] In this embodiment, in order to facilitate the connection of the water pump to an external water pipe, refer to Figure 2 As shown, a connecting sleeve 4a3 for externally connecting a water pipe is also specially provided at the second water outlet 4a1 of the housing 4a. A second internal thread 4a4 that facilitates the quick assembly or disassembly of the water pipe is also provided on the inner wall of the connecting sleeve 4a3.

[0033] In this embodiment, in order to prevent the water flow in the pump body 2 from flowing back, refer to Figure 3 and Figure 7 As shown, a check valve 7 is also specially provided at the water inlet 2c of the pump body 2. A valve cover 7a is also provided outside the check valve 7. The valve cover 7a is detachably connected to the pump body 2 by setting a third fastener 7b, and a through hole 7a1 that can penetrate the water inlet 2c is also provided on the valve cover 7a.

[0034] Here, in order to optimize the overall structure of the check valve 7 and enable it to better extend the service life, refer to Figure 7As shown, the check valve 7 includes a valve seat 71 and a valve stem 72. The valve seat 71 has a valve port 71a for water flow to pass through. The valve stem 72 is inserted through the valve seat 71 and can slide up and down relative to the valve seat 71. A valve plate assembly 73 for blocking the valve port 71a is provided at the first end of the valve stem 72 below the valve seat 71. A return spring 74 is further provided between the valve stem 72 and the valve seat 71, which can always keep the valve stem 72 in an upward movement trend to drive the valve plate assembly 73 to block the valve port 71a without external force. The valve seat 71 is also provided with a first limiting portion 71b extending upward. A second limiting portion 72a adapted to the first limiting portion 71b is provided at the second end of the valve stem 72 above the valve seat 71. The valve plate assembly 73 can overcome the elastic force of the return spring 74 under the impact of water flow and drive the valve stem 72 to move downward to open the valve port 71a. During the downward movement of the valve stem 72 from top to bottom, the second limiting portion 72a can abut against the first limiting portion 71b to limit the excessive downward movement of the valve stem 72, so as to improve the fatigue strength of the return spring 74.

[0035] Reference Figure 1 and Figure 3 As shown, in this embodiment, in order to optimize the overall structure of the water pump and enable it to better achieve intelligent control, a control box 8 is specially provided on the outer side of the barrel 1. The control box 8 is provided with a control board 8a and a power supply 8b for power supply. The control board 8a is electrically connected to the water flow detection switch 4b, the pressure detection switch 4c and the motor 3 to control the motor 3 to achieve intelligent operation of the water pump according to the detected water flow parameters.

[0036] It should be additionally noted here: In this embodiment, by providing an intelligent control module 4 on the outer side of the pump body 2, and making the water flow detection switch 4b and the pressure detection switch 4c of the intelligent control module 4 be built in the outer shell 4a of the intelligent control module 4, and by providing a detection chamber 5 in the outer shell 4a for placing the water flow sensing body 41 of the water flow detection switch 4b and the pressure sensing body 42 of the pressure detection switch 4c, the water flow parameters passing through the detection chamber 5 can be detected in time to control the intelligent operation of the water pump. In addition, by enabling the water flow sensing body 41 and the pressure sensing body 42 to both detach from the outer shell 4a from the inside to the outside, rapid assembly or disassembly is achieved, thus greatly simplifying the internal structure complexity of the intelligent control module in the prior art and also simplifying the assembly process of the intelligent control module. Furthermore, the structure and assembly of the intelligent control module 4 can be made simpler. Also, since the intelligent control module 4 is placed on the outer side of the pump body 2 for mutual docking here, while achieving rapid assembly or disassembly, there is no need to additionally provide an installation space inside the pump body 2, which also simplifies the complexity of the pump body 2 to a certain extent, thereby reducing the manufacturing cost.

[0037] It should be noted that in the description of this embodiment, the orientation or positional relationship indicated by terms such as "front, back", "left, right", "inside, outside", "up, down", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. The terms "installed", "connected", and "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A smart water pump with improved structure, comprising a barrel (1) and a pump body (2) arranged at the end of the barrel (1), wherein a pump cavity (2a) is formed inside the pump body (2), and an impeller (2b) is built in the pump cavity (2a), and a motor (3) for driving the impeller (2b) to rotate is arranged inside the barrel (1), and a water inlet (2c) and a first water outlet (2d) connected to the pump cavity (2a) are also opened on the pump body (2), characterized in that: The invention also comprises an intelligent control module (4) arranged on the pump body (2), the intelligent control module (4) comprising a shell (4a), a water flow detection switch (4b) and a pressure detection switch (4c); the shell (4a) is detachably connected to the outer wall of the pump body (2); a detection chamber (5) connected to the first water outlet (2d) is formed in the shell (4a); a second water outlet (4a1) connected to the detection chamber (5) is provided on the shell (4a) for allowing the fluid in the detection chamber (5) to flow out; a water flow sensing body (41) of the water flow detection switch (4b) and a pressure sensing body (42) of the pressure detection switch (4c) are both built into the detection chamber (5) for detecting water flow parameters and controlling the intelligent operation of the water pump; and the water flow sensing body (41) and the pressure sensing body (42) can be separated from the shell (4a) from the inside to the outside to achieve rapid assembly or disassembly.

2. The structure-improved intelligent water pump according to claim 1, characterized in that: The detection chamber (5) comprises a first detection chamber (5a) and a second detection chamber (5b) which are interconnected. The first detection chamber (5a) has a bottom opening (5a1) to facilitate the water flow sensing body (41) of the water flow detection switch (4b) to enter the first detection chamber (5a) from the outside to the inside. The second detection chamber (5b) has a side opening (5b1) to facilitate the pressure sensing body (42) of the pressure detection switch (4c) to enter the second detection chamber (5b) from the outside to the inside.

3. The structure-improved intelligent water pump according to claim 2 is characterized in that: The bottom of the housing (4a) is formed with a first docking surface (4a2); the pump body (2) is formed with a second docking surface (2e) that can be adapted to the first docking surface (4a2); the first water outlet (2d) is arranged on the second docking surface (2e); the bottom opening (5a1) of the first detection chamber (5a) is arranged on the first docking surface (4a2) and docked with the first water outlet (2d); the pump body (2) and the housing (4a) are detachably connected by a first fastener (6) The water flow sensing body (41) of the water flow detection switch (4b) is arranged at the bottom opening (5a1) of the first detection chamber (5a), and when the pump body (2) and the housing (4a) are in a disassembled state, the water flow sensing body (41) can be separated from the housing (4a) from the inside to the outside, and a first magnetic component (43) matching the water flow sensing body (41) is arranged on the side of the housing (4a) to facilitate the water flow sensing of the water flow detection switch (4b).

4. The structure-improved intelligent water pump according to claim 2 is characterized in that: A cover (5b2) for closing the side opening (5b1) is also provided at the side opening (5b1) of the second detection chamber (5b), thereby facilitating the assembly of the pressure sensing body (42) of the pressure detection switch (4c) from the outside to the inside or the disassembly from the inside to the outside. A second magnetic component (44) matching the pressure sensing body (42) is provided on the cover (5b2) to facilitate the pressure sensing of the pressure detection switch (4c).

5. The structure-improved intelligent water pump according to claim 4 is characterized in that: A first internal thread (5b3) is provided on the inner wall of the side opening (5b1) of the second detection chamber (5b), a connecting portion (5b4) capable of extending into the side opening (5b1) is formed on the cover (5b2), and an external thread (5b5) capable of being threadedly connected to the first internal thread (5b3) is provided on the outer wall of the connecting portion (5b4).

6. The structure-improved intelligent water pump according to claim 1 is characterized in that: The second water outlet (4a1) of the housing (4a) is also provided with a connecting sleeve (4a3) for externally connecting a water pipe, and the inner wall of the connecting sleeve (4a3) is also provided with a second internal thread (4a4) for facilitating rapid assembly or disassembly of the water pipe.

7. The structure-improved intelligent water pump according to any one of claims 1 to 6, characterized in that: The water inlet (2c) of the pump body (2) is also provided with a check valve (7) for preventing water from flowing back, and a valve cover (7a) is also provided on the outer side of the check valve (7). The valve cover (7a) is detachably connected to the pump body (2) by providing a third fastener (7b), and the valve cover (7a) is also provided with a through hole (7a1) that can penetrate the water inlet (2c).

8. The structure-improved intelligent water pump according to claim 7 is characterized in that: The check valve (7) comprises a valve seat (71) and a valve stem (72); the valve seat (71) has a valve port (71a) for water flow to pass through; the valve stem (72) is inserted into the valve seat (71) and can slide up and down relative to the valve seat (71); a valve plate assembly (73) for blocking the valve port (71a) is provided at the first end of the valve stem (72) below the valve seat (71); a return spring (74) is provided between the valve stem (72) and the valve seat (71) so as to enable the valve stem (72) to always maintain an upward movement trend so as to drive the valve plate assembly (73) to block the valve port (71a) without external force; the valve seat (71 ) is also provided with a first limiting portion (71b) extending upward, and a second limiting portion (72a) capable of adapting to the first limiting portion (71b) is provided at the second end of the valve stem (72) located above the valve seat (71). The valve plate assembly (73) can overcome the elastic force of the return spring (74) under the impact of water flow and drive the valve stem (72) to move downward to open the valve port (71a). During the movement of the valve stem (72) from top to bottom, the second limiting portion (72a) can resist the first limiting portion (71b) to limit the valve stem (72) from being excessively moved downward to improve the fatigue strength of the return spring (74).

9. The structure-improved intelligent water pump according to claim 1, characterized in that: A control box (8) is also provided on the outside of the barrel (1), and a control panel (8a) and a power supply (8b) are provided inside the control box (8). The control panel (8a) is electrically connected to a water flow detection switch (4b), a pressure detection switch (4c) and a motor (3) so as to control the motor (3) to realize intelligent operation of the water pump according to the detected water flow parameters.

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