CN114658642B - Automatic controller for water pump - Google Patents

Abstract

The utility model relates to a water pump automatic control ware, including the controller body that has water inlet and delivery port, still including the fixed block that has two connectors, annular runner has been seted up in the fixed block, be equipped with the separate piece on the connector, be equipped with first check valve and second check valve on the separate piece, be equipped with the isolation board on the connector, the isolated board connector separates into the first way that does not communicate each other and second way, this part connector that the controller body was kept away from to the separate piece is called the intercommunication mouth, the isolated board separates annular runner into the third way that does not communicate each other and fourth way, first way only communicates with the third way, third way communicates with the water inlet, the second way only communicates with the fourth way, fourth way communicates with the delivery port, be equipped with the restriction piece in the fourth way, when one of them connector advances water, the restriction piece is used for restricting the water reflux that the delivery port comes to this connector. The operator can connect the water outlet pipe of the water pump to any connecting port for use.

Description

Automatic controller for water pump

Technical Field

The application relates to the field of water pump controllers, in particular to an automatic water pump controller.

Background

The water pump controller starts and stops the water pump according to the detected water source state, the pipeline water consumption, the pipeline pressure change and other data.

The invention patent with publication number of CN102767509A discloses an improved electronic pressure controller, which comprises a middle body with a water inlet and a water outlet, a pressure membrane component arranged in a content cavity of the middle body, a pressure regulating rod component tightly pressed on the pressure membrane component, a check valve component arranged in the water inlet and a flow floater component arranged at the water outlet; the magnet arranged in the pressure diaphragm assembly and the flow floater assembly is provided with a control circuit board assembly of a magnetic control element reed switch at the corresponding position of the magnet; the upper part of the middle body is fixedly connected with a pressure regulating head body; the pressure regulating head body wraps the pressure regulating rod assembly; the manual pressure regulating cap is rotatably arranged above the pressure regulating head body and at the same time arranged at the top of the pressure regulating rod assembly; and a control box assembly containing a control circuit board assembly is connected below the middle body.

The related technical scheme has the following defects: when the electronic pressure controller is installed, an operator needs to install the water outlet pipe of the water pump on the water inlet of the automatic water pump controller, and if the water outlet pipe of the water pump is installed on the water outlet by mistake, the electronic pressure controller cannot be used.

Disclosure of Invention

In order to prevent an operator from connecting a water outlet pipe of a water pump with a water inlet of an electronic pressure controller in error, the application provides an automatic controller of the water pump.

The application provides a water pump automatic control ware adopts following technical scheme:

the utility model provides a water pump automatic control ware, includes the controller body that has water inlet and delivery port, still includes the fixed block that has two connectors, in the controller body embedding fixed block, set up annular runner in the fixed block, annular runner intercommunication water inlet and delivery port and two connectors, two connectors are located the both sides of water inlet and delivery port respectively, be equipped with the separate piece on the connector, be equipped with first check valve and second check valve on the separate piece respectively, be equipped with the isolation board on the connector, the isolation board is located the one side that the connector is close to annular runner, the isolation board will be located the separate piece and be close to the first and the second that the part connector of controller body is separated into each other and do not communicate, the separate piece is kept away from the part connector of controller body and is called the intercommunication mouth, the isolation board separates into the third that is not communicate each other with the annular runner and four, the first is only with the third that is linked together, the third is linked together with the water inlet, the second is only with the fourth that is linked together, the fourth is linked together with the delivery port, the first check valve is equipped with the restriction when the first check valve is followed the first check valve and is corresponding to the second flow to the water outlet, and one of the restriction water outlet is used for flowing from the first to the second flow to the corresponding one in the first one of the first check valve when this one of the first flow to the water outlet.

Through adopting above-mentioned technical scheme, operating personnel can connect the outlet pipe of water pump on arbitrary connector, the water pump is pressed water in the continuous passageway of this connector, water can only flow to first way from first check valve, then flow to the water inlet of controller body through the third way, water is come out from the delivery port through the controller body after, under the effect of restriction spare, water can not flow back to the connector with pump body connection, water can flow to the second way of another connector along the fourth way, then flow to the external world from the second check valve again, realize going out water, can prevent that operating personnel from connecting up the mistake with the outlet pipe of water pump and the water inlet of water pump automatic controller, make water pump automatic controller normal use.

Preferably, the third channel is provided with two third one-way valves, the two third one-way valves correspond to the two first channels respectively, the two third one-way valves are arranged close to the water inlet and are respectively positioned at two sides of the water inlet, and the third one-way valves only allow water entering in the corresponding first channels to flow to the water inlet through the third channel.

Through adopting above-mentioned technical scheme, the third check valve is used for cutting apart the third once more, and after the water pump is installed on one of them connector, the water that gets into in this connector can get into in the water inlet of third rethread corresponding third check valve entering water pump controller, and another third check valve is used for preventing water to flow to another connector along the third again, can improve the flow efficiency of water in the third, makes water pump controller play the effect fast.

Preferably, both ends of the isolation plate are respectively connected to the separation block and the inner wall of the annular flow channel in a sliding manner, the isolation plate slides between the first one-way valve and the second one-way valve, one end, close to the separation block, of the isolation plate faces the two side faces of the first channel and the second channel, limiting blocks are fixed on the two side faces of the isolation plate, the limiting blocks are used for limiting the moving range of the isolation plate, and the limiting blocks do not shade the first one-way valve and the second one-way valve.

Through adopting above-mentioned technical scheme, when the delivery port of water pump is connected on one of them connector, this connector is equivalent to the inlet tube and uses, and when water passes through first the time this moment, can promote the insulating plate and remove towards one side of second the way to increase first the flow path, reduce the pressure that first inner wall and insulating plate received.

Preferably, springs are arranged on the side surfaces of the two sides of the isolation plate facing the first channel and the second channel, and when no external force acts on the isolation plate, the springs drive the isolation plate to move to the center positions of the first one-way valve and the second one-way valve.

Through adopting above-mentioned technical scheme, the spring can help the insulating board to reset, and when water promotes the insulating board and removes simultaneously, can slow down the travel speed of insulating board, also can control the travel distance of insulating board according to rivers size simultaneously, makes first or second can adjust to more suitable flow path size.

Preferably, the flow limiting piece comprises two driving pieces and two flow limiting blocks, the two flow limiting blocks are respectively connected in the fixed block in a sliding mode, the two flow limiting blocks are respectively located at two sides of the water outlet, the two flow limiting blocks respectively correspond to the two second channels, the two driving pieces respectively correspond to the two flow limiting blocks, the driving pieces drive the corresponding flow limiting blocks to slide, and when water enters the first channel of one connecting port, the corresponding flow limiting blocks are blocked in the fourth channel and limit water coming out of the water outlet to flow back into the second channel of the connecting port.

By adopting the technical scheme, the driving piece drives the flow limiting block to slide in the fixed block, and the water in the fourth channel is prevented from flowing back into one connecting port connected with the water outlet of the water pump as much as possible by enabling the flow limiting block to move to be far away from the fourth channel or to be blocked in the two states of the fourth channel.

Preferably, the length direction of the current limiting block is parallel to the sliding direction of the current limiting block and is inclined, and when the current limiting block moves towards one side of the controller body to be blocked on the fourth inner wall, the distance from one end, close to the controller body, of the current limiting block to one end, far away from the controller body, of the current limiting block to the water outlet is gradually increased.

Through adopting above-mentioned technical scheme, when the restriction piece keeps off and plays the effect of restriction backward flow in the fourth way, the water that flows from the delivery port of controller body can act on the restriction piece and promote the restriction piece towards restriction piece one side, because the restriction piece is the slope setting, the component of rivers effect on the restriction piece can press the restriction piece on the fourth way inner wall to increase the stability of restriction piece when being impacted by water.

Preferably, the driving piece includes pivot, rotating block, linkage piece, first gear and rack, set up the movable groove on the intercommunication mouth inner wall, the pivot rotates along the length direction of perpendicular to connector and connects in the movable groove, the rotating block is fixed in the pivot, the one end of rotating block stretches into the intercommunication mouth, first gear rotates along the axis direction that is on a parallel with the pivot and connects in the fixed block, the rack is fixed on the restriction piece and along the slip direction sliding connection who is on a parallel with the restriction piece in the fixed block, rack meshing is connected on first gear, the pivot rotates through linkage piece driving gear, coaxial coupling has the torsional spring to be used for driving the rotating block and always rotates to the butt on the movable groove inner wall towards one side of keeping away from the second way in the pivot, when water flows to first from the intercommunication mouth, the rotating block rotates towards first side, and the restriction backward flow is played in the fourth way to the corresponding restriction piece, when water flows to the intercommunication mouth from the second way, the rotating block rotates towards one side of keeping away from the second way, fourth way shifts out.

Through adopting above-mentioned technical scheme, the rivers of different directions can drive the turning block and rotate towards different directions to drive the pivot and rotate towards different directions, the pivot rotates and drives the gear through the linkage piece and rotate, thereby drives the current limiting piece and slides on the fixed block, finally realizes automatic current limiting.

Preferably, a first arc groove is formed in the side surface, far away from the separation block, of the rotating block, the first arc groove is used for receiving water flowing from the communication port to the first channel, a first arc surface is formed in the side surface, close to the separation block, of the rotating block, and the first arc surface is used for guiding water flowing from the second channel to the communication port.

Through adopting above-mentioned technical scheme, when letting in water in the connector, water can flow to first arc inslot, first arc inslot through increasing the area of contact with water to better drive rotating block rotates towards separate piece one side, when being used for out water in the connector, water can strike first cambered surface on and flow along first cambered surface, can reduce the direct impact of water to the pressure that causes the rotating block on the rotating block.

In summary, the present application includes at least one of the following beneficial technical effects:

through setting the fixed block and the two connectors, and matching with a series of structures in the fixed block, an operator can connect the water outlet pipe of the water pump to any connector, so that the water inlet and the water outlet are not needed to be distinguished;

through setting up mobilizable isolation board, when the delivery port of water pump is connected on one of them connector, this connector is equivalent to the inlet tube and uses, and when water passes through first the time this moment, can promote the isolation board and remove towards one side of second the way to increase first the flow path, reduce the pressure that first inner wall and isolation board received.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present application.

Fig. 2 is a cross-sectional view taken along line A-A of fig. 1.

Fig. 3 is a sectional view taken along line B-B of fig. 1.

Fig. 4 is an enlarged view at C in fig. 3.

Fig. 5 is a cross-sectional view of one of the connectors according to an embodiment of the present application when water is being fed.

Fig. 6 is an enlarged view at D in fig. 5.

Fig. 7 is a schematic structural view of a driving member according to an embodiment of the present application.

Fig. 8 is a sectional view taken along line E-E of fig. 1.

Reference numerals illustrate: 1. a controller body; 11. a water inlet; 12. a water outlet; 13. a sliding groove; 131. a spring; 2. a fixed block; 21. a connection port; 211. a first pass; 212. a second pass; 213. a communication port; 2131. a movable groove; 22. an annular flow passage; 221. a third pass; 222. fourth pass; 2221. a moving groove; 23. a separation block; 231. a first one-way valve; 232. a second one-way valve; 24. an isolation plate; 241. a limiting block; 242. a slide block; 25. a third one-way valve; 26. a flow restrictor; 261. a flow-limiting block; 27. a driving member; 271. a rotating shaft; 272. a rotating block; 2721. a first arc groove; 2722. a first cambered surface; 273. a first gear; 274. a rack; 28. a linkage member; 281. a second gear; 282. a first synchronization belt; 283. a second timing belt; 284. a third timing belt; 285. a first synchronizing wheel; 286. a second synchronizing wheel; 287. and a third synchronizing wheel.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-8.

The embodiment of the application discloses an automatic controller of a water pump.

Referring to fig. 1 and 2, the automatic water pump controller of the present embodiment includes a controller body 1 having a water inlet 11 and a water outlet 12, and a fixed block 2 having two connection ports 21, wherein the controller body 1 is embedded in the fixed block 2, an annular flow passage 22 is provided in the fixed block 2, the annular flow passage 22 encloses the controller body 1, the outer ends of the water inlet 11 and the water outlet 12 extend to the annular flow passage 22 and are communicated with the annular flow passage 22, the two connection ports 21 are respectively located at both sides of the water inlet 11 and the water outlet 12, and the inner ends of the two connection ports 21 are communicated with the annular flow passage 22. The water inlet 11 and the water outlet 12 are arranged opposite to each other, the two connecting ports 21 are arranged opposite to each other, and the water inlet 11 and the connecting ports 21 are arranged perpendicular to each other.

Referring to fig. 3 and 4, a partition block 23 for partitioning the connection port 21 is fixed to the connection port 21, a first check valve 231 and a second check valve 232 are respectively mounted on the partition block 23, an isolation plate 24 is slidingly connected to the connection port 21 along the length direction perpendicular to the connection port 21, the isolation plate 24 is located at one side of the connection port 21 close to the annular flow passage 22, two ends of the isolation plate 24 are slidingly connected to the partition block 23 and the inner wall of the annular flow passage 22 respectively, the isolation plate 24 partitions the part of the connection port 21 located at one side of the partition block 23 close to the controller body 1 into a first channel 211 and a second channel 212 which are not communicated with each other, and meanwhile, the part of the connection port 21 of the partition block 23 far from the controller body 1 is called a communication port 213, and the two isolation plates 24 partition the annular flow passage 22 into a third channel 221 and a fourth channel 222 which are not communicated with each other. The first channel 211 communicates with only the third channel 221, the water inlet 11 communicates with only the third channel 221, the second channel 212 communicates with only the fourth channel 222, the water outlet 12 communicates with only the fourth channel 222, the first one-way valve 231 only supplies water to flow from the communication port 213 to the corresponding first channel 211, and the second one-way valve 232 only supplies water to flow from the second channel 212 to the corresponding communication port 213.

Referring to fig. 3, a flow restrictor 26 is disposed in the fourth channel 222, and the flow restrictor 26 is used to restrict water from the water outlet 12 from flowing back into the second channel 212 of one of the connectors 21 when water is fed into the first channel 211 of the other connector 21.

Referring to fig. 3 and 4, an operator can connect the water outlet pipe of the water pump to any connection port 21, the water pump presses the water into the connection channel of the connection port 21, the water can only flow from the first one-way valve 231 to the first channel 211 and then flow to the water inlet 11 of the controller body 1 through the third channel 221, after the water passes through the water outlet 12 of the controller body 1, the water can not flow back to the connection port 21 connected with the pump body under the action of the flow limiting piece 26, the water can flow to the second channel 212 of the other connection port 21 along the fourth channel 222 and then flow to the outside from the second one-way valve 232, so that water outlet is realized, and the operator can be prevented from connecting the water outlet pipe of the water pump with the water inlet 11 of the automatic controller of the water pump by mistake, so that the automatic controller of the water pump can be used normally.

Referring to fig. 3 and 4, the inner wall of one side of the annular flow passage 22 far from the isolation joint 21 coincides with part of the outer wall of the controller body 1, the outer wall of the controller body 1 is provided with a sliding groove 13, one end of the isolation plate 24 far from the isolation block 23 is fixed with a sliding block 242, and the sliding block 242 is slidably connected in the movable groove 2131 along the sliding direction parallel to the isolation plate 24. Two springs 131 are arranged in the sliding groove 13, the two springs 131 are respectively positioned at two sides of the sliding block 242, two ends of the springs 131 are respectively abutted on the end wall of the sliding block 242 and the sliding block 242, and the springs 131 are always in a compressed state. When no external force acts on the isolation plate 24, the spring 131 drives the isolation plate 24 to move to the center positions of the first check valve 231 and the second check valve 232. Limiting blocks 241 are fixed on two side surfaces of the insulating plate 24, which are close to the separating block 23, towards the first channel 211 and the second channel 212, the two limiting blocks 241 are respectively used for being abutted against the inner wall of the first channel 211 or the second channel 212 to limit the moving range of the insulating plate 24, the insulating plate 24 is prevented from moving to exceed or shelter the first check valve 231 and the second check valve 232, and the limiting blocks 241 do not shelter the first check valve 231 and the second check valve 232.

Referring to fig. 3 and 4, when the water outlet 12 of the water pump is connected to one of the connection ports 21, the connection port 21 is equivalent to a water inlet pipe, and when water passes through the first channel 211, the isolation plate 24 is pushed to move toward the second channel 212, so as to increase the flow path of the first channel 211 and reduce the pressure applied to the inner wall of the first channel 211 and the isolation plate 24. The spring 131 can help the isolation plate 24 to reset, and simultaneously when the water pushes the isolation plate 24 to move, the moving speed of the isolation plate 24 can be slowed down, and the moving distance of the isolation plate 24 can be controlled according to the water flow, so that the first channel 211 or the second channel 212 can be adjusted to a proper flow path size.

Referring to fig. 3 and 4, two third check valves 25 are fixed on the third channel 221, the two third check valves 25 are disposed near the water inlet 11 and are respectively located at two sides of the water inlet 11, the two third check valves 25 respectively correspond to the two first channels 211, and only water entering in the corresponding first channels 211 flows to the water inlet 11 through the third channel 221 by the third check valves 25. The third one-way valve 25 is used for dividing the third channel 221 again, when the water pump is installed on one of the connection ports 21, water entering into the connection port 21 can enter the third channel 221 and then enter the water inlet 11 of the controller body 1 through the corresponding third one-way valve 25, the other third one-way valve 25 is used for preventing water from flowing into the other connection port 21 along the third channel 221 again, the flowing efficiency of the water in the third channel 221 can be improved, and the water directly enters into the controller body 1, so that the controller body 1 can play a role rapidly.

Referring to fig. 5 and 6, the flow limiting member 26 includes two driving members 27 and two flow limiting blocks 261, two moving grooves 2221 are formed in a side surface of the fourth channel 222, which is far away from the controller body 1, the two moving grooves 2221 respectively correspond to the two flow limiting blocks 261, and the flow limiting blocks 261 are slidably connected in the moving grooves 2221 along a depth direction parallel to the moving grooves 2221. The two moving grooves 2221 are respectively located at two sides of the water outlet 12, and the distance from one end of the moving groove 2221 close to the water outlet 12 to one end far from the water outlet 12 to the axis of the water outlet 12 gradually increases. The length direction of the current limiting block 261 is parallel to the depth direction of the moving groove 2221, two driving pieces 27 respectively correspond to the two current limiting blocks 261, and the driving pieces 27 drive the corresponding current limiting blocks 261 to slide in the moving groove 2221. The two flow limiting blocks 261 respectively correspond to the two connecting ports 21, and the flow limiting blocks 261 positioned on the same side of the water outlet 12 correspond to the connecting ports 21. When the driving member 27 drives the flow limiting block 261 to move toward the side of the controller body 1 to abut against the outer wall of the controller body 1, the flow limiting block 261 blocks in the fourth channel 222 and limits the water from the water outlet 12 from flowing back into the second channel 212 of the corresponding connection port 21.

Referring to fig. 7 and 8, the driving member 27 includes a rotating shaft 271, a rotating block 272, a linkage member 28, a first gear 273 and a rack 274, a movable groove 2131 is formed on the inner wall of the communication port 213, the rotating shaft 271 is rotationally connected in the movable groove 2131 along the length direction perpendicular to the connection port 21, the rotating block 272 is fixed on the rotating shaft 271, one end of the rotating block 272 always extends into the communication port 213, when water flows in different directions pass through the communication port 213, the rotating block 272 can rotate to be abutted on the inner wall of the movable groove 2131 towards one side close to the separation block 23 or far away from the separation block 23, and a torsion spring is coaxially connected on the rotating shaft 271 and is used for driving the rotating block 272 to rotate to be abutted on the inner wall of the movable groove 2131 towards one side far away from the separation block 23.

Referring to fig. 7 and 8, the first gear 273 is rotatably coupled in the fixed block 2 in the axial direction parallel to the rotation shaft 271, the rack 274 is fixed to the current limiting block 261 and slidably coupled in the fixed block 2 in the sliding direction parallel to the current limiting block 261, the rack 274 is engaged and coupled to the first gear 273, and the rotation shaft 271 drives the gears to rotate in the opposite direction through the link 28. When water flows from the communication port 213 to the first channel 211, the rotating block 272 rotates towards one side of the separation block 23 under the impulse of water, and the rotating shaft 271 rotates to drive the first gear 273 to rotate, so that the corresponding flow limiting block 261 is driven by the rack 274 to move towards the fourth channel 222 to abut against the outer wall of the valve body, and the function of limiting the water from the water outlet 12 to flow back to the corresponding connection port 21 is achieved. When water flows from the second passage 212 to the communication port 213, the rotation block 272 rotates toward the side away from the separation block 23, and at this time, the flow restriction block 261 moves out of the fourth passage 222, and does not perform the flow restriction function.

Referring to fig. 7 and 8, the linkage 28 includes a second gear 281, a first timing belt 282, a second timing belt 283, a third timing belt 284, two first timing wheels 285, two second timing wheels 286, and two third timing wheels 287, wherein one first timing wheel 285 is coaxially sleeved at one end of the rotation shaft 271 extending out of the connection port 21, the other first timing wheel 285 is rotatably connected in the fixed block 2, the axial directions of the two first timing wheels 285 are parallel to each other, the axial direction of the connection port 21 is assumed to be the axial direction of the horizontal direction, the two first timing wheels 285 are located at the same level, and the first timing belt 282 is wound around the two first timing wheels 285. One of the second synchronizing wheels 286 is coaxially fixed on the first synchronizing wheel 285 far from the rotating shaft 271, the other second synchronizing wheel 286 is rotatably connected on the fixed block 2, the axial directions of the two second synchronizing wheels 286 are mutually parallel, the second synchronizing belt 283 is wound on the two second synchronizing wheels 286, and the two second synchronizing wheels 286 are positioned on the same vertical height. One of the third synchronizing wheels 287 is coaxially fixed on the second synchronizing wheel 286 below, the other third synchronizing wheel 287 is rotatably connected to the fixed block 2, the axial directions of the two third synchronizing wheels 287 are arranged in parallel with each other, and the third synchronizing belt 284 is wound around the two second synchronizing wheels 286. The second gear 281 is coaxially fixed to the third synchronizing wheel 287, and the second gear 281 is engaged with the first gear 273.

Referring to fig. 4 and 6, a side surface of the rotating block 272 away from the separating block 23 is provided with a first arc groove 2721, the first arc groove 2721 is concave toward one side of the separating block 23, and the first arc groove 2721 is used for receiving water flowing into the first channel 211 from the communicating port 213. The side surface of the rotating block 272 close to the separating block 23 is provided with a first cambered surface 2722, the first cambered surface 2722 protrudes towards one side of the separating block 23, and the first cambered surface 2722 is used for guiding the water flowing to the communicating opening 213 from the second channel 212.

Referring to fig. 4 and 6, when water is introduced into the connection port 21, the water flows into the first arc groove 2721, and the first arc groove 2721 increases the contact area with the water, so that the rotating block 272 is better driven to rotate towards one side of the separating block 23, and when the water is discharged from the connection port 21, the water impacts the first arc surface 2722 and flows out along the first arc surface 2722, so that the pressure caused by the direct impact of the water on the rotating block 272 can be reduced.

The implementation principle of the automatic controller of the water pump is as follows: an operator can connect the water outlet pipe of the water pump to any connection port 21, and can realize normal use of the controller body 1.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. An automatic controller for a water pump, comprising a controller body (1) with a water inlet (11) and a water outlet (12), characterized in that: the controller is characterized by further comprising a fixed block (2) with two connecting ports (21), wherein the controller body (1) is embedded into the fixed block (2), an annular flow passage (22) is formed in the fixed block (2), the annular flow passage (22) is communicated with the water inlet (11) and the water outlet (12) and the two connecting ports (21), the two connecting ports (21) are respectively positioned at two sides of the water inlet (11) and the water outlet (12), a separation block (23) is arranged on the connecting ports (21), a first one-way valve (231) and a second one-way valve (232) are respectively arranged on the separation block (23), an isolation plate (24) is arranged on the connecting ports (21), the isolation plate (24) is positioned at one side, close to the annular flow passage (22), of the separation block (23) is separated into a first channel (211) and a second channel (212) which are not communicated with each other, the separation block (23) is far away from the connecting ports (21) of the controller body (1), the isolation plate (24) is called as an isolation plate (24), the isolation plate (22) is not communicated with the annular flow passage (222), the first channel (211) is only communicated with the third channel (221), the third channel (221) is communicated with the water inlet (11), the second channel (212) is only communicated with the fourth channel (222), the fourth channel (222) is communicated with the water outlet (12), the first one-way valve (231) only supplies water to flow from the communication port (213) to the corresponding first channel (211), the second one-way valve (232) only supplies water to flow from the second channel (212) to the corresponding communication port (213), a flow limiting piece (26) is arranged in the fourth channel (222), and when the first channel (211) of one connecting port (21) is filled with water, the flow limiting piece (26) is used for limiting water from the water outlet (12) to flow back into the second channel (212) of the connecting port (21).

2. The automatic water pump controller according to claim 1, wherein: two third one-way valves (25) are arranged on the third channel (221), the two third one-way valves (25) respectively correspond to the two first channels (211), the two third one-way valves (25) are close to the water inlet (11) and are respectively positioned on two sides of the water inlet (11), and the third one-way valves (25) only allow water entering in the corresponding first channels (211) to flow to the water inlet (11) through the third channel (221).

3. The automatic water pump controller according to claim 1, wherein: the two ends of the isolation plate (24) are respectively connected to the separation block (23) and the inner wall of the annular flow channel (22) in a sliding mode, the isolation plate (24) slides between the first one-way valve (231) and the second one-way valve (232), one end, close to the separation block (23), of the isolation plate (24) faces the first channel (211) and the two side faces of the second channel (212) respectively are fixed with limiting blocks (241), the limiting blocks (241) are used for limiting the moving range of the isolation plate (24), and the limiting blocks (241) do not cover the first one-way valve (231) and the second one-way valve (232).

4. The automatic water pump controller according to claim 3, wherein: the two side surfaces of the isolation plate (24) facing the first channel (211) and the second channel (212) are provided with springs (131), and when no external force acts on the isolation plate (24), the springs (131) drive the isolation plate (24) to move to the center positions of the first check valve (231) and the second check valve (232).

5. The automatic water pump controller according to claim 1, wherein: the flow limiting piece (26) comprises two driving pieces (27) and two flow limiting blocks (261), the two flow limiting blocks (261) are respectively connected in the fixed block (2) in a sliding mode, the two flow limiting blocks (261) are respectively located at two sides of the water outlet (12), the two flow limiting blocks (261) respectively correspond to the two second channels (212), the two driving pieces (27) respectively correspond to the two flow limiting blocks (261), the driving pieces (27) drive the corresponding flow limiting blocks (261) to slide, and when water enters the first channel (211) of one connecting port (21), the corresponding flow limiting blocks (261) are blocked in the fourth channel (222) and limit water flowing out of the water outlet (12) to flow back into the second channel (212) of the connecting port (21).

6. The automatic water pump controller according to claim 5, wherein: the length direction of the current limiting block (261) is parallel to the sliding direction of the current limiting block (261) and is inclined, and when the current limiting block (261) moves towards one side of the controller body (1) to be blocked on the inner wall of the fourth channel (222), the distance from one end, close to the controller body (1), of the current limiting block (261) to one end, far away from the controller body (1), of the current limiting block is gradually increased from the water outlet (12).

7. The automatic water pump controller according to claim 5, wherein: the driving part (27) comprises a rotating shaft (271), a rotating block (272), a linkage part (28), a first gear (273) and a rack (274), wherein a movable groove (2131) is formed in the inner wall of the communication port (213), the rotating shaft (271) is rotationally connected in the movable groove (2131) along the length direction perpendicular to the connecting port (21), the rotating block (272) is fixed on the rotating shaft (271), one end of the rotating block (272) extends into the communication port (213), the first gear (273) is rotationally connected in the fixed block (2) along the axis direction parallel to the rotating shaft (271), the rack (274) is fixed on the current limiting block (261) and is slidingly connected in the fixed block (2) along the sliding direction parallel to the current limiting block (261), the rack (274) is meshed and connected on the first gear (273), the rotating shaft (271) is rotationally driven by the linkage part (28), a torsion spring is coaxially connected on the rotating shaft (271) and is used for driving the rotating block (272) to always rotate towards the second side (212) away from the first side (213) to the first side (211) and towards the first side (211) when the first side (211) is rotationally connected, the corresponding flow limiting block (261) moves into the fourth channel (222) to play a role in limiting backflow, when water flows from the second channel (212) to the communication port (213), the rotating block (272) rotates towards the side far away from the second channel (212), and the flow limiting block (261) moves out of the fourth channel (222).

8. The automatic water pump controller according to claim 7, wherein: the rotary block (272) is far away from one side of the separation block (23) and is provided with a first arc groove (2721), the first arc groove (2721) is used for receiving water flowing into the first channel (211) from the communication port (213), one side of the rotary block (272) close to the separation block (23) is provided with a first cambered surface (2722), and the first cambered surface (2722) is used for guiding water flowing into the communication port (213) from the second channel (212).