CN218625549U - Multifunctional water pump - Google Patents

Abstract

An object of the utility model is to provide a multifunctional water pump, including the main part, be equipped with the pump cover in the main part, the pump cover is connected with the disk seat, and the disk seat is connected with the valve block fixing base, and the valve block fixing base is connected with three bowls of diaphragms, and three bowls of diaphragms are connected with the diaphragm mount, and the diaphragm mount is connected with the motor fixing base, and the motor fixing base is connected with the motor, is equipped with the sealed diaphragm that is used for forming two upper and lower independent cavities between pump cover and the disk seat, be equipped with inhalant canal on the pump cover, be equipped with two cavitys in the pump cover at least, pass through the passageway UNICOM between cavity and the cavity, the cavity includes inhalant canal of inhalant canal, is equipped with the bending part of thin wall in the sealed diaphragm, and the bending part center is equipped with the boss that is used for sealing the water outlet valve port; the utility model discloses a multi-functional water pump has and only ends, antidrip, pressure protection, flow detection etc. and synthesizes integrative function, and above function can the selectivity assemble the water pump on, and the water pump is long-pending less, convenient assembling, low cost more accords with present complete machine designing requirement.

Description

Multifunctional water pump

Technical Field

The utility model belongs to the technical field of the suction pump utensil, especially, relate to a water pump with end contrary, drip proof, pressure protection, flow detection synthesize integrative function.

Background

The main function of the existing micro water pump is to convert the rotary motion into the up-and-down motion of the rubber part through an eccentric mechanism, form negative pressure in the cavity of the three-bowl diaphragm through the action of two one-way valves, suck water into the water pump from the outside through atmospheric pressure, and discharge the water in the cavity which moves up and down continuously through the diaphragm to form circulation; need external a set of flowmeter to the higher occasion of flow precision, thereby lead to whole space volume bigger installation not down, and need set up corresponding subassembly cooperation specially and connect water pump and flowmeter.

At present miniature pump guarantees that the water tank water level is far above the mounted position of water pump with external check valve more, and under the perpendicular water pressure effect of water tank, the condition of dripping appears in the water pump end to lead to stewing and place for a long time after, slow seepage appears in product water outlet end, influence customer experience.

At present miniature pump is because the inlet and outlet water pipe way generally can all advance one and go out, goes out the water end when the water pump because other reasons such as foreign matter, leads to the water pump to go out the water end and blocks up, and the continuous drumming of diaphragm in the water pump can lead to the inside pressure of water pump to last the increase to the pump line that will connect bursts, and the inventor is to above problem, has set up a protection device in inside, can be according to the pressure value of setting for, the inside self-refluxing of automatic formation cavity, thereby protection water pump and whole product.

At present, along with the development in the field of small household appliances, the product design is more and more miniaturized, and the multifunctional water pump is developed, so that the inventor designs a comprehensive multifunctional water pump by integrating the advantages of assembly and overall body type while solving the problems.

Disclosure of Invention

The utility model aims to provide a water pump with integrated functions of non-return, drip-proof, pressure protection and flow detection; in order to achieve the above object, the specific technical solution of the present invention is: the utility model provides a multifunctional water pump, includes the main part, is equipped with the pump cover in the main part, and the pump cover is connected with the disk seat, and the disk seat is connected with the valve block fixing base, and the valve block fixing base is connected with three bowls of diaphragms, and three bowls of diaphragms are connected with the diaphragm mount, and the diaphragm mount is connected with the motor fixing base, and the motor fixing base is connected with the motor.

Furthermore, a sealing diaphragm used for forming an upper independent chamber and a lower independent chamber is arranged between the pump cover and the valve seat, and a water inlet channel is arranged on the pump cover.

Furthermore, a sealing gasket is arranged between the valve seat and the valve plate fixing seat, the three bowls of membranes are pressed by the valve plate fixing seat and the membrane fixing frame, the motor is connected with the motor fixing seat through screws, a motor shaft is arranged on the motor, an eccentric block is arranged on the motor shaft and assembled with a connecting rod, the connecting rod is in interference fit with the swing frame, a through hole is formed in the swing frame, the three bowls of membranes are connected through the through hole, and the three bowls of membranes sequentially penetrate through the pump cover, the valve seat, the valve plate fixing seat and the membrane fixing frame to be connected with the motor fixing seat through fastening screws to form a main body.

Furthermore, at least two cavities are arranged in the pump cover, the cavities are communicated with one another through channels, and each cavity comprises a water inlet cavity of the water inlet channel.

Furthermore, a thin-wall bending part is arranged in the sealing diaphragm, and a boss for sealing the water outlet valve port is arranged in the center of the bending part.

Further, a sealing seat is installed between the pump cover and the valve seat, a spring is installed on the sealing seat, a boss is arranged on the sealing membrane, the spring is also installed on the boss and elastically supports the pump cover, a water outlet channel and a water outlet valve port are arranged in the valve seat, the water outlet channel is communicated with the water outlet valve port, a backflow valve port with a protection effect is arranged in the water outlet channel, and a guide column used for limiting the spring on the sealing seat is arranged on the backflow valve port.

Furthermore, a first cavity is arranged in the pump cover, a water inlet cavity with a channel communicated with the water inlet channel is formed in the first cavity, a second cavity is further arranged in the pump cover, a second channel is arranged on the second cavity and communicated with the first cavity, a first hole used for communicating the backflow valve port with the second cavity is formed in the sealing diaphragm, and a second hole used for communicating the water inlet channel with the valve seat is further formed in the sealing diaphragm.

Furthermore, the edge of the sealing diaphragm wall is provided with a rib for sealing the valve seat, and a groove for coupling with the rib of the sealing diaphragm is arranged in the valve seat.

Furthermore, a small bundling hole for reducing a water flow path is formed in the water inlet channel, a rotor is installed in the water inlet channel, the rotor is over against the lower portion of the small bundling hole, and a magnetic induction element over against the rotor is installed on one side of the water inlet channel of the pump cover.

Furthermore, a special-shaped contraction part for enabling the rotor to rotate more smoothly is further arranged below the small cluster hole, and therefore the flow detection precision is guaranteed.

Furthermore, the rotor is provided with blades for pushing the rotor to move, and the blades contain magnetic elements.

Furthermore, the two sides below the small bundling holes are provided with symmetrical positioning ribs, a rotor fixing frame is arranged below the small bundling holes, symmetrical supporting columns are arranged on the rotor fixing frame, positioning grooves are formed in the supporting columns, and the water inlet channel is in pin-socket connection with the positioning grooves in the rotor fixing frame through the positioning ribs.

Further, be equipped with the guide way that is used for giving the rotor direction on the pillar, the guide way below is equipped with the mounting hole that is used for installing the rotor, and the both sides of rotor are equipped with the bump, and the rotor leads through bump cooperation guide way and gets into in the mounting hole, and inhalant canal one side is equipped with the circuit board mount pad, is equipped with the circuit board subassembly in the circuit board mount pad, is equipped with the magnetic induction component in the circuit board subassembly.

Compared with the prior art, the utility model has the advantages that when the water inlet channel bears the pressure of water, the small drawing pin and the water outlet valve plate are made of thin materials, the leakage is easy to open under the action of water pressure, the water flow passes through the water inlet channel and is divided into two paths, and the water flow passes through the first channel and the second channel and enters the first cavity and the second cavity; the other path of water flow opens a small drawing pin to enter the three bowl membranes, and opens the water outlet valve plate to touch the water outlet valve port; because the water pressure on the upper end of the water outlet valve port is the same as the water pressure on the lower end of the water outlet valve port which is abutted against the water outlet valve port, and the boss of the sealing membrane on the upper end of the water outlet valve port has pressure under the action of the spring, the water can not flow out from the water outlet channel, and the drip-proof function is achieved.

The water outlet channel has the beneficial effects that when the water outlet channel is blocked or the pressure of the water outlet channel is increased due to external reasons, the pressure of the water outlet channel continuously rises under the continuous action of the three bowl-shaped membranes, and when the pressure is greater than the sealing action of the spring above the backflow valve port on the sealing seat, the water pressure in the water outlet channel pushes the sealing seat away, flows through the backflow valve port, and is communicated with the water inlet channel through the communicated cavity II, so that the water outlet channel sequentially passes through the water inlet channel, the valve seat, the small drawing pin, the three bowl-shaped membranes, the water outlet valve plate, the water outlet valve port, the water outlet channel, the backflow valve port, the cavity II, the cavity I and the internal circulation loop of the water inlet channel, the water pump and a pipeline connected with the water pump are protected, and the protection function is achieved.

The water pump has the advantages that the water outlet channel cannot open the backflow valve port due to the existence of water pressure, the backflow valve port acts on the sealing diaphragm, and the spring is connected to the upper end of the boss of the sealing diaphragm, so that the water outlet channel of the water pump can bear certain water pressure under the action of the spring, the water outlet valve port cannot be opened by water flow, and the water flow cannot flow out of the water inlet channel, so that the non-return function is achieved.

The water inlet channel of the pump cover has the beneficial effects that the cluster small holes are opposite to the blades of the rotor, so that water flow is accelerated after passing through the cluster small holes to push the blades of the rotor to rotate, N/S pole conversion of the magnetic element is formed, the magnetic induction element induces N/S pole change and transmits the N/S pole change to the circuit board assembly to be converted into an electric pulse signal, the number of times that the water flow pushes the rotor to rotate through the cluster small holes can be converted by calculating the output pulse number of the electric pulse signal, and therefore the water flow passing through the water inlet channel of the pump cover is calculated.

To sum up, the utility model discloses a multifunctional water pump has and ends contrary, antidrip, pressure protection, flow detection etc. and synthesizes integrative function, and above function can the selectivity assemble the water pump on, and the water pump is long-pending less, convenient assembling, and low cost more accords with present complete machine design requirement.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of the overall structure of the explosion state reference of the present invention.

Fig. 2 is the cross-sectional structure state reference schematic diagram of the pump cover of the utility model.

Fig. 3 is the structure state of the pump cover of the present invention refers to the schematic diagram.

Fig. 4-5 are schematic reference views of the structural states of the valve seat of the present invention.

Fig. 6 is a schematic view of the rotor fixing base according to the present invention.

Fig. 7 is a reference schematic diagram of the structure state after the rotor is encapsulated by the rubber of the present invention.

Fig. 8 is a reference schematic diagram of the position structure of the rotor and the circuit board sensor of the present invention.

Fig. 9 is the reference schematic diagram of the state of the sealing structure connected with the valve seat valve port and the pump cover.

Fig. 10-11 are schematic views for reference of the structural state of the sealing diaphragm according to the present invention.

Fig. 12 is a schematic view of the overall structure of the present invention.

Fig. 13 is a schematic view of the protection water flow path state reference of the present invention.

Fig. 14 is a schematic view of the flow detection and drip-proof water flow path state reference of the present invention.

Fig. 15 is a reference schematic diagram of the non-return water flow path state of the present invention.

The symbols in the figure illustrate: 1. a pump cover; 2. a tower spring; 3. a straight column spring; 4. a sealing seat; 5. sealing the membrane; 6. a water outlet valve plate; 7. a small drawing pin; 8. a membrane fixing frame; 9. a connecting rod; 10. a motor fixing screw; 11. a motor; 12. a motor fixing seat; 13. an eccentric block; 14. placing a frame; 15. three bowls of diaphragms; 16. a valve plate fixing seat; 17. a gasket; 18. a valve seat; 19. a circuit board assembly; 20. a rotor fixing frame; 21. a rotor; 22. fastening screws; 30. a water inlet channel; 31. a constriction; 32. positioning the ribs; 33. bundling small holes; 35. a first channel; 36. a second channel; 37. a tower spring positioning post; 38. a straight spring positioning column; 39. a circuit board mounting base; 40. sealing the ribs; 52. a water outlet channel; 53. a guide post; 54. a groove; 55. a return valve port; 56. a water outlet valve port; 61. positioning a groove; 62. a guide groove; 63. mounting holes; 71. a magnetic element; 72. encapsulating plastic; 81. a magnetic induction element; 91. ribs; 92. a boss; 93. a bend region; 100. a main body; 101. a first cavity; 102. and a second cavity.

Detailed Description

Other advantages and capabilities of the present disclosure will be readily apparent to those skilled in the art from the present disclosure by describing the embodiments of the present disclosure in detail below with reference to the accompanying drawings, wherein the embodiments of the present disclosure are described by specific examples. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without inventive step, are intended to be within the scope of the present disclosure.

It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to or other than one or more of the aspects set forth herein.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present disclosure, and the drawings only show the components related to the present disclosure rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided to provide a thorough understanding of the examples; however, it will be understood by those skilled in the art that the aspects may be practiced without these specific details; the utility model discloses an embodiment provides a multi-functional water pump, and the following further explanation that combines the figure does.

The utility model discloses a preferred embodiment, see fig. 1-15 and know, multifunctional water pump, including main part 100, be equipped with pump cover 1 on the main part 100, pump cover 1 is connected with disk seat 18, is equipped with sealed diaphragm 5 between pump cover 1 and the disk seat 18 to two independent cavities about forming.

Preferably, the pump cover 1 is provided with a water inlet channel 30, the water inlet channel 30 is provided with a small cluster hole 33 for reducing a water flow path, two sides of the lower portion of the small cluster hole 33 are provided with symmetrical positioning ribs 32, a rotor fixing frame 20 is arranged below the small cluster hole 33, the rotor fixing frame 20 is provided with symmetrical supporting columns, the supporting columns are provided with positioning grooves 61, and the water inlet channel 30 is in pin-plug connection with the positioning grooves 61 on the rotor fixing frame 20 through the positioning ribs 32.

Preferably, the pillar is provided with a guide groove 62 for guiding the rotor 21, a mounting hole 63 for mounting the rotor 21 is arranged below the guide groove 62, the rotor 21 is provided with a salient point, and the rotor 21 is guided into the mounting hole 63 by the salient point matching with the guide groove 62, so that the mounting is completed.

Preferably, four blades for pushing the rotor 21 to move are arranged on the rotor 21, salient points are arranged on two sides of the rotor 21, the blades are made of rubber-coated plastics 72 through a rubber coating process, and magnetic elements 71 are contained in the rubber-coated plastics 72.

Preferably, the pump cover 1 is provided with a circuit board mounting seat 39 on one side of the water inlet passage 30, a circuit board assembly 19 is mounted in the circuit board mounting seat 39, a magnetic induction element 81 is mounted in the circuit board assembly 19, and the magnetic induction element 81 is positioned in the same horizontal line with the rotor 21, even though the magnetic element 71 can be induced by the magnetic induction element 81.

Preferably, the small cluster holes 33 are opposite to the blades of the rotor 21, so that the water flow accelerates after passing through the small cluster holes 33, and the blades of the rotor 21 are pushed to rotate, thereby forming N/S pole conversion of the magnetic element 71, the magnetic sensing element 81 senses the N/S pole change and transmits the N/S pole change to the circuit board assembly 19, and converts the N/S pole change into an electric pulse signal, and the electric pulse signal is calculated to convert the electric pulse signal into the number of times that the water flow pushes the rotor 21 to rotate through the small cluster holes 33, thereby calculating the water flow passing through the water inlet channel 30 of the pump cover 1, and it should be mentioned that if the position of the magnetic sensing element 81 and the rotor 21 are not in the same horizontal line, the magnetic sensing element 81 cannot sense the N/S pole change output by the magnetic element 71.

Preferably, a special-shaped contraction part 31 for enabling the rotor 21 to rotate more smoothly is further arranged below the small bundling hole 33, so that the flow detection precision is guaranteed.

Preferably, a first cavity 101 is arranged in the pump cover 1, a tower-shaped spring positioning column 37 is arranged in the first cavity 101, a first channel 35 is arranged on the first cavity 101 and communicated with the water inlet channel 30, a second cavity 102 is further arranged in the pump cover 1, a straight spring positioning column 38 is arranged in the second cavity 102, a second channel 36 is arranged on the second cavity 102 and communicated with the first cavity 101, and a sealing rib 40 used for being coupled with the sealing membrane 5 is arranged between the first cavity 101 and the second cavity 102 in the ring wall of the pump cover 1.

Preferably, the tower spring positioning post 37 is provided with a conical surface, which facilitates the centering and assembling of the tower spring 2.

Preferably, a water outlet channel 52 is arranged in the valve seat 18, the water outlet channel 52 is communicated with a water outlet valve port 56, a backflow valve port 55 with a protection function is arranged in the water outlet channel 52, and an annular guide column 53 for positioning and limiting the straight column spring 3 is arranged on the backflow valve port 55.

Preferably, a groove 54 is provided in said valve seat 18 for coupling with the sealing diaphragm 5.

Preferably, the sealing diaphragm 5 is provided with a first hole 111 for communicating the return valve port 55 with the second cavity 102, and the sealing diaphragm 5 is further provided with a second hole 112 for communicating the water inlet channel 30 with the valve seat 18.

Preferably, a thin-walled bending part 93 is arranged in the sealing diaphragm 5, and a boss 92 for sealing the water outlet valve port 56 is arranged in the center of the bending part 93.

Preferably, the sealing diaphragm 5 wall is provided along with ribs 91 for sealing against the valve seat 18.

Preferably, the tower spring 2 is mounted on the boss 92 of the sealing diaphragm 5, and the tower spring 2 is further mounted with the tower spring positioning post 37 of the pump cover 1.

Preferably, a sealing seat 4 and a straight column spring 3 for sealing the return valve port 55 are installed in the annular guide column 53 of the return valve port 55, the straight column spring 3 is installed on the sealing seat 4, and the straight column spring 3 is further installed with the straight spring positioning column 38 of the pump cover 1.

Preferably, water outlet valve plates 6 and small drawing pins 7 are respectively installed in the valve plate fixing seat 16 to form two one-way seals, the valve plate fixing seat 16 is connected with the membrane fixing frame 8, the middle of the valve plate fixing seat is sleeved with three bowls of membranes 15, a sealed cavity is formed in the three bowls of membranes 15, meanwhile, the seal between the valve plate fixing seat 16 and the membrane fixing frame 8 is guaranteed, positioning columns at the tail parts of the three bowls of membranes 15 are connected with positioning holes in the swing frame 14, the swing frame 14 is connected with the motor 11 through the connecting rod 9 and the eccentric block 13, the rotary motion of the motor 11 is converted into the up-and-down movement of the three bowls of membranes 15, the motor 11 is connected with the above components through the motor fixing screws 10 and the motor fixing seat 12, and the whole component is in through connection through the three fastening screws 22.

The specific using method or steps are as follows: the water feeding and discharging function-the motor 11 rotates, and the rotating motion of the motor is converted into the up-and-down motion in the cavity of the three-bowl membrane 15 through the eccentric block 13 connected with the motor shaft, the connecting rod 9 connected with the eccentric block 13 and the swing frame 14, so that the change of the air pressure in the cavity is formed.

Specifically, the small drawing pin 7 mounted on the valve plate fixing seat 16 and the three bowls of membranes 15 of the water outlet valve plate 6 form a one-way communicated cavity, air pressure is reduced along with the movement of the membranes in the cavity, negative pressure is formed inside the cavity, and therefore the water supply function can be achieved.

The drip-proof function is that when the water inlet channel 30 bears the pressure of water, the small drawing pin 7 and the water outlet valve sheet 6 are made of thin rubber materials and are easy to open under the action of water pressure, water flows through the water inlet channel 30 and is divided into two paths, and one path of water flows through the first channel 35 and the second channel 36 and enters the first cavity 101 and the second cavity 102;

specifically, the other path of water flow opens the small drawing pin 7 to enter the three bowls of membranes 15, opens the water outlet valve sheet 6 and touches the water outlet valve port 56;

because the water pressure on the upper end of the water outlet valve port 56 is the same as the water pressure on the lower end of the water outlet valve port 56, and the boss of the sealing membrane 5 on the upper end of the water outlet valve port 56 has pressure under the action of the spring, the water can not flow out from the water outlet channel 52.

The protection function is that when the water outlet channel 52 is blocked or the pressure is increased due to external reasons, the pressure of the water outlet channel 52 continuously rises under the continuous action of the three-bowl diaphragm 15, and when the pressure is greater than the sealing action of the straight column spring 3 above the return valve port 55 on the sealing seat 4, the water pressure in the water outlet channel 52 pushes the sealing seat 4 away, flows through the return valve port 55, and is communicated with the first cavity 101 and the water inlet channel 30 through the second cavity 102, so as to sequentially pass through the water inlet channel 30 → the valve seat 18 → the small drawing pin 17 → the three-bowl diaphragm 15 → the water outlet valve sheet 6 → the water outlet valve port 56 → the water outlet channel 52 → the return valve port 55 → the second cavity 102 → the first cavity 101 → the internal circulation loop of the water inlet channel 30, thereby protecting the water pump and a pipeline connected with the water pump.

The non-return function-when the water outlet channel 52 is under the existence of water pressure, the water pressure cannot open the return valve port 55 to act on the sealing diaphragm 5, and the tower spring 2 is connected to the upper end of the sealing diaphragm boss 92, so that under the action of the tower spring 2, the water outlet channel 52 of the water pump can bear certain water pressure, and the water outlet valve port 56 cannot be opened by water flow, so that the water flow cannot flow out from the water inlet channel 30.

In summary, the present disclosure is only a specific embodiment, but the scope of the present disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (16)

1. Multifunctional water pump, including the main part, be equipped with pump cover, its characterized in that in the main part: the pump cover is connected with the valve seat, the valve seat is connected with the valve block fixing seat, the valve block fixing seat is connected with the three bowls of membranes, the three bowls of membranes are connected with the membrane fixing frame, the membrane fixing frame is connected with the motor fixing seat, and the motor fixing seat is connected with the motor.

2. The multifunctional water pump of claim 1, wherein: a sealing diaphragm used for forming an upper independent chamber and a lower independent chamber is arranged between the pump cover and the valve seat, and a water inlet channel is arranged on the pump cover.

3. The multifunctional water pump of claim 2, wherein: the pump cover is at least provided with two cavities, the cavities are communicated with one another through channels, and each cavity comprises a water inlet cavity of the water inlet channel.

4. The multifunctional water pump of claim 2, wherein: the sealing diaphragm is provided with a thin-wall bending part, and the center of the bending part is provided with a boss for sealing the water outlet valve port.

5. The multifunctional water pump of claim 3, wherein: the pump cover is characterized in that a sealing seat is installed between the pump cover and the valve seat, a spring is installed on the sealing seat, a boss is arranged on the sealing membrane, the spring is installed on the boss and elastically supports the pump cover, a water outlet channel and a water outlet valve port are arranged in the valve seat, the water outlet channel is communicated with the water outlet valve port, a backflow valve port with a protection effect is arranged in the water outlet channel, and a guide column used for limiting the spring on the sealing seat is arranged on the backflow valve port.

6. The multifunctional water pump of claim 4, wherein: the pump cover is provided with a first cavity, the first cavity is provided with a water inlet cavity, the channel is communicated with the water inlet channel, the pump cover is further provided with a second cavity, the second cavity is provided with a second channel and communicated with the first cavity, the sealing diaphragm is provided with a first hole for communicating the backflow valve port with the second cavity, and the sealing diaphragm is further provided with a second hole for communicating the water inlet channel with the valve seat.

7. The multifunctional water pump of claim 2, wherein: the sealing diaphragm wall is provided with ribs for sealing the valve seat, and the valve seat is internally provided with a groove for coupling with the ribs of the sealing diaphragm.

8. The multifunctional water pump of claim 2, wherein: the water inlet channel is provided with a small bundling hole for reducing a water flow path, the water inlet channel is internally provided with a rotor, the rotor is over against the lower part of the small bundling hole, and one side of the water inlet channel of the pump cover is provided with a magnetic induction element over against the rotor.

9. The multifunctional water pump of claim 8, wherein: and a special-shaped contraction part for enabling the rotor to rotate more smoothly is further arranged below the small cluster hole, so that the flow detection precision is ensured.

10. The multifunctional water pump of claim 8, wherein: the rotor is provided with blades for pushing the rotor to move, and the blades contain magnetic elements.

11. The multifunctional water pump of claim 8, wherein: the two sides below the small bundling holes are provided with symmetrical positioning ribs, a rotor fixing frame is arranged below the small bundling holes, symmetrical supporting columns are arranged on the rotor fixing frame, positioning grooves are formed in the supporting columns, and the water inlet channel is in pin-in connection with the positioning grooves in the rotor fixing frame through the positioning ribs.

12. The multifunctional water pump of claim 11, wherein: be equipped with on the pillar and be used for the guide way for the rotor direction, the guide way below is equipped with the mounting hole that is used for installing the rotor, and the both sides of rotor are equipped with the bump, and the rotor leads through bump cooperation guide way and gets into in the mounting hole, and inhalant canal one side is equipped with the circuit board mount pad, installs circuit board subassembly in the circuit board mount pad, installs magnetic induction element in the circuit board subassembly.

13. The multifunctional water pump of claim 6, wherein: the three-bowl diaphragm sealing device is characterized in that a sealing gasket is arranged between the valve seat and the valve plate fixing seat, the three bowls of diaphragms are pressed by the valve plate fixing seat and the diaphragm fixing seat, the motor is connected with the motor fixing seat through screws, a motor shaft is arranged on the motor, an eccentric block is arranged on the motor shaft and assembled with a connecting rod, the connecting rod is in interference fit with the swing frame, a through hole is formed in the swing frame, the three bowls of diaphragms are connected through the through hole, and the three bowls of diaphragms sequentially penetrate through the pump cover, the valve seat, the valve plate fixing seat and the diaphragm fixing seat to be connected with the motor fixing seat through fastening screws to form a main body.

14. The multifunctional water pump of claim 7, wherein: the valve block fixing seat is provided with a small drawing pin and a water outlet valve block, the valve block fixing seat is connected with the membrane fixing frame, three bowls of membranes are arranged in the middle in a pressing mode, when the water inlet channel bears the pressure of water, the small drawing pin and the water outlet valve block are made of thin materials, leakage can be easily opened under the action of water pressure, water flow passes through the water inlet channel and is divided into two paths, and one path of water flow passes through the first channel and the second channel and enters the first cavity and the second cavity; the other path of water flow opens a small drawing pin to enter the three bowls of membranes, and opens a water outlet valve plate to touch a water outlet valve port; because the water pressure on the upper end of the water outlet valve port is the same as the water pressure on the lower end of the water outlet valve port which is abutted against the water outlet valve port, and the boss of the sealing membrane on the upper end of the water outlet valve port has pressure under the action of the spring, the water can not flow out from the water outlet channel, and the drip-proof function is achieved.

15. The multifunctional water pump of claim 14, wherein: when the water outlet channel is blocked or the pressure of the water outlet channel is increased due to external reasons, the pressure of the water outlet channel continuously rises under the continuous action of the three bowl-shaped membranes, and when the pressure is greater than the sealing action of a spring above the backflow valve port on the sealing seat, the water pressure in the water outlet channel pushes the sealing seat away, flows through the backflow valve port, is communicated with the water inlet channel through the communicated cavity II, and then sequentially passes through the water inlet channel, the valve seat, the small drawing pin, the three bowl-shaped membranes, the water outlet valve plate, the water outlet valve port, the water outlet channel, the backflow valve port, the cavity II, the cavity I and the internal circulation loop of the water inlet channel, so that the water pump and a pipeline connected with the water pump are protected, and the protection function is achieved.

16. The multifunctional water pump of claim 14, wherein: the water outlet channel cannot open the backflow valve port due to the existence of water pressure, acts on the sealing diaphragm, and the upper end of the boss of the sealing diaphragm is connected with the spring, so that the water outlet channel of the water pump can bear certain water pressure under the action of the spring, the water outlet valve port cannot be opened by water flow, and the water flow cannot flow out of the water inlet channel, so that the non-return function is achieved.

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