Controllable precision micro-pump with pressure

Abstract

This invention relates to the field of water pump technology, and in particular to a controllable, pressurized, precision micro water pump, comprising a water inlet assembly including a bottom cover, a water inlet pipe communicating with the inner cavity of the bottom cover, and a water volume monitoring device disposed within the water inlet pipe. A water-passing sleeve is disposed at the center of the inner cavity of the bottom cover, and a plurality of first gaskets are arranged in a ring array on the inner wall of the water-passing sleeve. A reset spring and a dynamic sealing gasket are disposed inside the water-passing sleeve. The dynamic sealing gasket is cylindrical, and its outer wall matches and fits the inner wall of the ring array of first gaskets. One end of the first gasket is connected to the bottom end of the water-passing sleeve, and the other end of the first gasket protrudes from the water-passing sleeve. This invention effectively solves the problems of diaphragm water pumps in water dispensers being unable to interrupt water flow when there is water pressure in the water source, unable to prevent backflow of water, and unable to accurately calculate the amount of water dispensed.

Description

Technical Field

[0001] This invention relates to the field of water pump technology, and in particular to a controllable, high-precision micro water pump under pressure. Background Technology

[0002] Most household water dispensers use diaphragm pumps to deliver and pressurize drinking water. However, when a water dispenser is connected to a pressurized water source, a separate valve needs to be installed at the outlet of the diaphragm pump to ensure that when the water dispenser is not connected to a water source, the pressurized water source will not push open the one-way valve in the diaphragm pump and flow out from the outlet of the diaphragm pump.

[0003] Currently, after water is dispensed from the water dispenser, there is a possibility that the water from the dispenser outlet may flow back into the diaphragm pump chamber. This backflowing water carries bacteria and microorganisms from the air at the water dispenser outlet. Once the backflowing water enters the diaphragm pump chamber, the bacteria and microorganisms multiply inside the chamber, thus contaminating the subsequent purified water source.

[0004] Furthermore, the diaphragm pumps currently used in water dispensers cannot accurately calculate the amount of water to be delivered, requiring the use of other components to set the water volume. To solve these problems, we propose a controllable, pressurized, precision micro water pump. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] In view of the problems of diaphragm water pumps in the above or existing technologies, such as the inability to interrupt water flow when there is water pressure in the water source, the inability to prevent backflow of water, and the inability to accurately calculate the amount of water, this invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a controllable, pressurized, and precise micro water pump.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a controllable, pressurized, precision micro water pump, including a water inlet assembly, which includes a bottom cover, a water inlet pipe communicating with the inner cavity of the bottom cover, and a water volume monitoring device disposed in the water inlet pipe. A water-passing sleeve column is disposed at the center of the inner cavity of the bottom cover, and a plurality of first gaskets are arranged in a ring array on the inner wall of the water-passing sleeve column. A reset spring and a dynamic sealing gasket are disposed inside the water-passing sleeve column. The dynamic sealing gasket is cylindrical, and the outer wall of the dynamic sealing gasket matches and fits the inner wall of the ring array of first gaskets. One end of the first gasket is connected to the bottom end of the water-passing sleeve column, and the other end of the first gasket protrudes from the water-passing sleeve column. The water volume monitoring device includes a multi-dimensional microfiltration liner disposed in the water inlet pipe, a magnetic pole turbine rotor fixedly connected to the multi-dimensional microfiltration liner, and a Hall chip disposed outside the water inlet pipe and corresponding to the magnetic pole turbine rotor.

[0009] As a preferred embodiment of the controllable pressurized precision micro water pump of the present invention, wherein: an inner claw is provided at the inlet of the water inlet pipe, and a pressure cap is sleeved on the circumferential side wall of the inner claw, the pressure cap is snapped into the outer wall of the water inlet pipe, a sealing ring is provided inside the water inlet pipe, and the sealing ring is located at the end of the inner claw near the multidimensional microfiltration liner.

[0010] As a preferred embodiment of the controllable pressurized precision micro water pump of the present invention, it further includes a water pump cavity assembly, which includes a valve stem movable seat disposed above the bottom cover. The valve stem movable seat has a valve stem cavity and a first water flow channel. A water passage hole is opened at the center of the valve stem cavity. A water flow outlet is opened on the side wall of the valve stem cavity. The valve stem cavity and the first water flow channel are connected through the water flow outlet.

[0011] As a preferred embodiment of the controllable pressure-controlled precision micro water pump of the present invention, wherein: a second gasket is arranged in an annular array on the inner wall of the valve stem cavity, and a disc matching the inner wall of the second gasket in the annular array is movably arranged inside the valve stem cavity; a valve stem is welded to the bottom end of the disc; and the valve stem passes through the water passage hole and is fixedly connected to the top end of the dynamic sealing gasket; a third gasket is arranged in an annular array at the bottom end of the inner wall of the valve stem cavity; and the diameter of the valve stem is smaller than the diameter of the water passage hole.

[0012] As a preferred embodiment of the controllable pressurized precision micro water pump of the present invention, the pump cavity assembly further includes a water outlet channel frame disposed above the valve stem movable seat, an umbrella-shaped valve fixing seat disposed above the water outlet channel frame, and an isolation sealing gasket disposed between the water outlet channel frame and the umbrella-shaped valve fixing seat. The water outlet channel frame has a second water flow channel matching the first water flow channel, and both the water outlet channel frame and the umbrella-shaped valve fixing seat have an annular water cavity communicating with the second water flow channel on their respective sides that are in contact with each other. Both the water outlet channel frame and the umbrella-shaped valve fixing seat have a drainage cavity at their center positions near the isolation sealing gasket, and a partition ring plate is disposed between the drainage cavity and the annular water cavity. A raised column is disposed at the center position of the drainage cavity on the water outlet channel frame, and a water outlet pipe communicating with the drainage cavity is disposed on the side wall of the drainage cavity on the water outlet channel frame.

[0013] As a preferred embodiment of the controllable pressure-controlled precision micro water pump of the present invention, wherein: the umbrella-shaped valve fixing seat has a transition cavity in an annular array on the side away from the isolation sealing gasket, and the transition cavity has a first through hole and a second through hole, the first through hole connecting the annular water cavity and the transition cavity, and the second through hole connecting the drainage cavity.

[0014] As a preferred embodiment of the controllable pressurized precision micro water pump of the present invention, wherein: a mounting column is provided on the side of the umbrella-shaped valve fixing seat near the water outlet channel frame, and a rubber seat is sleeved on the mounting column, and a rubber sheet is provided on the top of the rubber seat, and the rubber sheet and the second through hole are correspondingly sealed.

[0015] As a preferred embodiment of the controllable pressurized precision micro water pump of the present invention, a dynamic sealing film is provided between the water outlet channel frame and the valve stem movable seat.

[0016] As a preferred embodiment of the controllable pressurized precision micro water pump of the present invention, it further includes a drive component, which includes a cup fixing seat disposed on the umbrella-shaped valve fixing seat, and a plurality of cups are installed in a ring array on the cup fixing seat, wherein the cups in the ring array correspond to and match the transition cavity of the ring array.

[0017] As a preferred embodiment of the controllable pressurized precision micro water pump of the present invention, wherein: a drive disk is fixedly installed on the ring array of the diaphragm cups, and a sleeve is provided at the top of the drive disk; the drive assembly also includes a motor base disposed on the diaphragm cup fixing seat, and a motor is fixedly installed on the motor base; an eccentric drive shaft is fixedly installed on the output shaft of the motor, and the eccentric drive shaft is inserted into the sleeve.

[0018] The beneficial effects of the controllable pressurized precision micro water pump of the present invention are as follows: By installing a water volume monitoring device inside the water inlet pipe, when the water source flows into the water inlet pipe, the water flow impacts the multi-dimensional microfiltration liner and drives the magnetic pole turbine rotor to rotate. The rotating magnetic pole turbine rotor calculates the water volume through the corresponding Hall chip.

[0019] This invention connects to a pressurized water source. When the motor is not working, all components are in standby mode. The pressurized water source pushes the sealing gasket to seal the water passage hole. The higher the water pressure, the better the sealing performance. When used as a diaphragm water pump in a water dispenser, there is no need to design a separate valve at the outlet of the diaphragm water pump, thus saving costs.

[0020] In this invention, the rubber seat and the rubber sheet form a one-way valve in the second through hole, so that the water in the transition chamber can be squeezed downward by the pressure generated by the reciprocating agitation of the rubber cup and enter the drainage chamber, and cannot flow back from the drainage chamber to the transition chamber, thereby avoiding the occurrence of water backflow. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of a controllable, pressurized, precision micro water pump.

[0023] Figure 2 This is a schematic diagram of the internal structure of the inlet component of a controllable, pressurized, precision micro water pump.

[0024] Figure 3 This is a schematic diagram of the valve stem movable seat structure for a controllable, pressurized, high-precision micro water pump.

[0025] Figure 4 This is a schematic diagram of the internal structure connecting the inlet assembly and the valve stem movable seat of a controllable, high-precision, pressurized micro water pump.

[0026] Figure 5 This is a schematic diagram of the water outlet channel skeleton structure of a controllable, pressurized, precision micro water pump.

[0027] Figure 6 This is a schematic diagram of the structure of the umbrella-shaped valve mounting seat near the piston cup of a controllable, pressurized, precision micro water pump.

[0028] Figure 7 This is a schematic diagram of the structure of the umbrella-shaped valve mounting seat of a controllable, high-precision, pressurized micro water pump, which fits against the isolation sealing gasket.

[0029] Figure 8 This is a schematic diagram of the internal structure of the outlet channel frame, isolation sealing gasket, and umbrella valve mounting seat of a controllable, pressurized, precision micro water pump.

[0030] Figure 9 This is a schematic diagram of the exploded structure of a controllable, pressurized, precision micro water pump. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1, referring to Figures 1 to 9 This is the first embodiment of the present invention. This embodiment provides a controllable, pressurized, precision micro water pump, which solves the problems of diaphragm pumps not being able to interrupt water flow when there is water pressure in the water source, not being able to prevent backflow, and not being able to accurately calculate the amount of water. It includes a water inlet assembly 100, which includes a bottom cover 101, a water inlet pipe 102 communicating with the inner cavity of the bottom cover 101, and a water volume monitoring element 103 disposed within the water inlet pipe 102. A water-passing sleeve column 101a is disposed at the center of the inner cavity of the bottom cover 101, and a plurality of first gaskets 101b are arranged in a ring array on the inner wall of the water-passing sleeve column 101a. A composite... The spring 104 and the dynamic sealing gasket 105 are cylindrical, and the outer wall of the dynamic sealing gasket 105 matches and fits the inner wall of the first gasket 101b in the annular array. One end of the first gasket 101b is connected to the bottom end of the water-passing sleeve column 101a, and the other end of the first gasket 101b protrudes from the water-passing sleeve column 101a. The water volume monitoring device 103 includes a multi-dimensional microfiltration liner 103a disposed in the water inlet pipe 102, a magnetic pole turbine rotor 103b fixedly connected to the multi-dimensional microfiltration liner 103a, and a Hall chip 103c disposed outside the water inlet pipe 102 and corresponding to the magnetic pole turbine rotor 103b.

[0035] In this embodiment, the water inlet pipe 102 is connected to a water source, and the water flows from the water inlet pipe 102 toward the inner cavity of the bottom cover 101. The flow passes through the multi-dimensional microfiltration liner 103a inside the water inlet pipe 102. When the water flows through the multi-dimensional microfiltration liner 103a, it pushes the multi-dimensional microfiltration liner 103a to rotate inside the water inlet pipe 102, thereby driving the magnetic pole turbine rotor 103b, which is fixedly connected to the multi-dimensional microfiltration liner 103a, to rotate. The rotation of the magnetic pole turbine rotor 103b cooperates with the Hall chip 103c to calculate the water intake by detecting the change in the magnetic field.

[0036] Furthermore, the multiple first pads 101b arranged in the annular array are used to limit the vertical movement of the dynamic sealing gasket 105 of the cylinder, and to prevent the vertically moving dynamic sealing gasket 105 from adhering to the inner wall of the water-passing sleeve column 101a. At the same time, the multiple first pads 101b arranged in the annular array all protrude from the top of the water-passing sleeve column 101a. So after the water flows into the internal cavity of the bottom cover 101 and fills it, it will enter the interior of the water-passing sleeve column 101a through the gap between the multiple first pads 101b in the annular array. At this time, if the water inlet pipe 102 is connected to a pressurized water source and the motor 306 is not working, the reset spring 104 will push the dynamic sealing gasket 105 upward to adhere to the water passage hole 201c on one side of the valve stem movable seat 201. This enables the diaphragm water pump to cut off the flow by itself when the motor is not working, saving the cost of setting up a separate valve.

[0037] It should be noted that the sealing direction of the dynamic sealing gasket 105 sealing the water passage 201c is the same as the water flow direction. The initial sealing force is the elastic compression of the return spring 104. When pressurized water enters the water passage sleeve 101a, the water pressure will compress the dynamic sealing gasket 105, thereby making the sealing effect of the dynamic sealing gasket 105 better. An inner claw 106 is provided at the water inlet of the water inlet pipe 102, and a pressure cap 107 is sleeved on the circumferential side wall of the inner claw 106. The pressure cap 107 is snapped into the outer wall of the water inlet pipe 102. A sealing ring 108 is provided inside the water inlet pipe 102, and the sealing ring 108 is located at the end of the inner claw 106 near the multidimensional microfiltration liner 103a.

[0038] An inner claw 106 is provided at the inlet of the water inlet pipe 102, and a pressure cap 107 is fitted on the circumferential side wall of the inner claw 106. The pressure cap 107 is snapped into the outer wall of the water inlet pipe 102. A sealing ring 108 is provided inside the water inlet pipe 102, and the sealing ring 108 is located at the end of the inner claw 106 near the multidimensional microfiltration liner 103a.

[0039] In this embodiment, the pressure cap 107 is sleeved on the outside of the inner claw 106, and then the inner claw 106 is inserted into the inside of the water inlet pipe 102 port. The pressure cap 107 is sleeved on the outside of the water inlet pipe 102 port, and the pressure cap 107 and the outside of the water inlet pipe 102 port are snapped together to fix the inner claw 106. The inner claw 106 is set at the water inlet pipe 102 port to clamp and fix the inserted water source pipe.

[0040] Furthermore, the inner diameter of the part where the multi-dimensional microfiltration liner 103a is rotatably installed inside the water inlet pipe 102 is smaller than the inner diameter of the part where the inner claw 106 of the water inlet pipe 102 is inserted. The two different inner diameters form a step, and the sealing ring 108 is set at the step and then squeezed and fixed by the inner claw 106 to achieve a seal between the water inlet pipe 102 and the water source pipe.

[0041] Example 2, refer to Figures 1 to 9 This is the second embodiment of the present invention. Unlike the previous embodiment, it also includes a water pump cavity assembly 200, which includes a valve stem movable seat 201 disposed above the bottom cover 101. The valve stem movable seat 201 has a valve stem cavity 201a and a first water flow channel 201b. A water passage hole 201c is provided at the center of the valve stem cavity 201a. A water flow outlet 201d is provided on the side wall of the valve stem cavity 201a. The valve stem cavity 201a and the first water flow channel 201b are connected through the water flow outlet 201d.

[0042] The inner wall of the valve stem cavity 201a is provided with a second gasket 201e arranged in an annular array, and a disc 109 matching the inner wall of the second gasket 201e in the annular array is movably arranged inside the valve stem cavity 201a. A valve stem 110 is welded to the bottom end of the disc 109, and the valve stem 110 passes through the water passage hole 201c and is fixedly connected to the top end of the dynamic sealing gasket 105. A third gasket 201f is arranged in an annular array at the bottom end of the inner wall of the valve stem cavity 201a. The diameter of the valve stem 110 is smaller than the diameter of the water passage hole 201c.

[0043] In this embodiment, the valve stem movable seat 201 and the bottom cover 101 are fixedly connected at the top, and a sealing gasket is provided between the valve stem movable seat 201 and the bottom cover 101. The sealing performance between the valve stem movable seat 201 and the bottom cover 101 is improved by the sealing gasket. After the valve stem movable seat 201 and the bottom cover 101 are fixedly connected at the top, the first gasket 101b protruding from the water-passing sleeve column 101a fits against the bottom end of the valve stem movable seat 201. The dynamic sealing gasket 105, the water-passing hole 201c and the valve stem 110 are all coaxially arranged.

[0044] Furthermore, when the pump body is working, the disc 109 is pushed downward by the moving sealing sheet 207, thereby driving the valve stem 110 to push the moving sealing gasket 105 downward and disengage from the water passage hole 201c to release the seal. At this time, the water in the inner cavity of the bottom cover 101 passes through the gap between the multiple first gaskets 101b in the annular array, and then flows into the valve stem cavity 201a from the gap between the water passage hole 201c and the valve stem 110, and then flows into the first water flow channel 201b from the water outlet 201d on the side wall of the valve stem cavity 201a.

[0045] It should be noted that the dynamic sealing gasket 105 and the inner wall of the first gasket 101b of the annular array are matched and fitted, and the disc 109 and the inner wall of the second gasket 201e of the annular array are matched. Furthermore, the disc 109 and the dynamic sealing gasket 105 are connected by the valve stem 110, so that when the disc 109 moves up and down, the valve stem 110 and the water passage 201c are always in a coaxial state and will not tilt, thus ensuring the stability of the pump body's water flow.

[0046] In addition, the third pad 201f, which is arranged in a ring array at the bottom of the valve stem cavity 201a, ensures that the disc 109 does not stick to block the water passage hole 201c when it moves down to the bottom position. At the same time, the second pad 201e, which is arranged in a ring, not only limits the disc 109, but also creates a certain gap between the side wall of the disc 109 and the inner wall of the valve stem cavity 201a to allow water to flow.

[0047] The water pump chamber assembly 200 also includes a water outlet channel frame 202 disposed above the valve stem movable seat 201, an umbrella valve fixing seat 203 disposed above the water outlet channel frame 202, and an isolation sealing gasket 204 disposed between the water outlet channel frame 202 and the umbrella valve fixing seat 203. The water outlet channel frame 202 has a second water flow channel 202a that matches the first water flow channel 201b, and both the water outlet channel frame 202 and the umbrella valve fixing seat 203 have a second water flow channel 202a that matches the first water flow channel 201b on their respective sides. The two water flow channels 202a connect to the annular water cavity 202b. The outlet channel frame 202 and the umbrella valve fixing seat 203 are both provided with drainage chambers 202c at the center of the side near the isolation sealing gasket 204. A partition ring plate 202d is provided between the drainage chamber 202c and the annular water cavity 202b. A raised column 202e is provided at the center of the drainage chamber 202c on the outlet channel frame 202, and an outlet pipe 202f is provided on the side wall of the drainage chamber 202c on the outlet channel frame 202, which is connected to it.

[0048] In this embodiment, the isolation sealing gasket 204 is used for sealing between the water outlet channel frame 202 and the umbrella valve fixing seat 203. The isolation sealing gasket 204 has multiple through holes, which make the water outlet channel frame 202 and the umbrella valve fixing seat 203 interconnected, and make the water outlet cavity 202b and the drainage cavity 202c completely isolated.

[0049] Furthermore, the first water flow channel 201b and the second water flow channel 202a are connected, and the water in the valve stem cavity 201a flows into the ring water cavity 202b through the first water flow channel 201b and the second water flow channel 202a.

[0050] The umbrella valve fixing seat 203 has a transition cavity 203a in an annular array on the side away from the isolation sealing gasket 204. The transition cavity 203a has a first through hole 203b and a second through hole 203c. The first through hole 203b connects the water circulation cavity 202b and the transition cavity 203a, and the second through hole 203c connects the drainage cavity 202c.

[0051] An installation column 203d is provided on the side of the umbrella valve fixing seat 203 near the water outlet channel frame 202, and a rubber seat 205 is sleeved on the installation column 203d. A rubber sheet 206 is provided on the top of the rubber seat 205, and the rubber sheet 206 and the second through hole 203c are sealed accordingly.

[0052] In this embodiment, the transition cavity 203a and the ring water cavity 202b of the ring array are connected through the first through hole 203b. The water flow in the ring water cavity 202b enters the transition cavity 203a through the first through hole 203b. The drainage cavity 202c is connected to the second through hole 203c. The water flow in the transition cavity 203a flows into the drainage cavity 202c through the second through hole 203c and is then transported out from the water outlet pipe 202f.

[0053] Specifically, the rubber seat 205 is sleeved on the mounting post 203d, and the other end of the rubber seat 205 abuts against the raised post 202e. The rubber sheet 206 is set at one end of the annular sidewall of the rubber seat 205 near the mounting post 203d. The water in the transition cavity 203a is pushed open by the drive assembly 300 and flows into the drainage cavity 202c.

[0054] The rest of the structure is the same as in Example 1.

[0055] Example 3, referring to Figures 1 to 9 This is the third embodiment of the present invention. Unlike the previous embodiment, it also includes a drive component 300, which includes a cup holder 301 disposed on the umbrella valve fixing seat 203. A plurality of cup holders 302 are mounted in a ring array on the cup holder 301. The ring array cup holders 302 correspond to and match the transition cavity 203a of the ring array.

[0056] A dynamic sealing sheet 207 is provided between the water outlet channel frame 202 and the valve stem movable seat 201.

[0057] A drive disk 303 is fixedly installed on the annular array cup 302, and a connecting sleeve post 304 is provided at the top of the drive disk 303. The drive assembly 300 also includes a motor base 305 provided on the cup fixing seat 301, and a motor 306 is fixedly installed on the motor base 305. An eccentric drive shaft 307 is fixedly installed on the output shaft of the motor 306, and the eccentric drive shaft 307 is inserted into the connecting sleeve post 304.

[0058] In this embodiment, the multiple cups 302 in the ring array are integrally injection molded, and there is a connecting rubber at the bottom. The multiple integrally injection molded cups 302 are inserted and installed from the bottom to the top of the cup fixing seat 301. The connecting rubber on the cups 302 is used for sealing the connection between the umbrella valve fixing seat 203 and the cup fixing seat 301.

[0059] Specifically, the multiple cups 302 in the annular array bulge up and down in sequence, generating negative pressure on the cavities inside the umbrella valve fixing seat 203, the water outlet channel skeleton 202, and the valve stem movable seat 201, thereby causing the dynamic sealing film 207 to bulge downwards, pushing the disc 109 to move downwards, thereby unlocking the seal of the dynamic sealing gasket 105.

[0060] It should be noted that the dynamic sealing sheet 207 provided between the water outlet channel frame 202 and the valve stem movable seat 201 is used not only to unlock the seal of the dynamic sealing gasket 105, but also to seal between the water outlet channel frame 202 and the valve stem movable seat 201.

[0061] Furthermore, the drive disc 303 has multiple mounting holes arranged in a ring array, and the mounting holes are engaged with the connecting end of the cup 302. When the motor 306 starts, its output shaft drives the eccentric drive shaft 307 to rotate. When the eccentric drive shaft 307 rotates, it drives the drive disc 303 to pull back and forth, thereby causing the cup 302 connected to the drive disc 303 to bulge back and forth, which generates negative pressure inside the water pump cavity assembly 200, thus realizing the delivery of water flow.

[0062] The rest of the structure is the same as in Example 2.

[0063] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0064] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0065] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A controllable, pressure-controlled, high-precision micro water pump, characterized in that: include, The water inlet assembly (100) includes a bottom cover (101), a water inlet pipe (102) communicating with the inner cavity of the bottom cover (101), and a water volume monitoring device (103) disposed in the water inlet pipe (102). A water-passing sleeve column (101a) is provided at the center of the inner cavity of the bottom cover (101), and a plurality of first gaskets (101b) are arranged in a ring array on the inner wall of the water-passing sleeve column (101a). A reset spring (104) and a dynamic sealing gasket (105) are provided inside the water-passing sleeve column (101a). The dynamic sealing gasket (105) is a cylinder, and the outer wall of the dynamic sealing gasket (105) matches and fits the inner wall of the ring array of first gaskets (101b). One end of the first pad (101b) is connected to the bottom end of the water-passing sleeve (101a), and the other end of the first pad (101b) protrudes out of the water-passing sleeve (101a). The water monitoring device (103) includes a multi-dimensional microfiltration liner (103a) disposed inside the water inlet pipe (102), a magnetic pole turbine rotor (103b) fixedly connected to the multi-dimensional microfiltration liner (103a), and a Hall chip (103c) disposed outside the water inlet pipe (102) and corresponding to the magnetic pole turbine rotor (103b). The water pump cavity assembly (200) includes a valve stem movable seat (201) disposed above the bottom cover (101). The valve stem movable seat (201) has a valve stem cavity (201a) and a first water flow channel (201b). A water passage hole (201c) is provided at the center of the valve stem cavity (201a). A water outlet (201d) is provided on the side wall of the valve stem cavity (201a). The valve stem cavity (201a) and the first water flow channel (201b) are connected through the water outlet (201d). The water pump cavity assembly (200) also includes a water outlet channel frame (202), an umbrella valve fixing seat (203) disposed above the water outlet channel frame (202), and an isolation sealing gasket (204) disposed between the water outlet channel frame (202) and the umbrella valve fixing seat (203). The water outlet channel frame (202) is provided with a second water flow channel (202a) that matches the first water flow channel (201b). The water outlet channel frame (202) and the umbrella valve fixing seat (203) are respectively provided with an annular water cavity (202b) that communicates with the second water flow channel (202a) on the side where they fit together. The water outlet channel frame (202) and the umbrella valve fixing seat (203) are respectively provided with a drain cavity (202c) at the center of the side near the isolation sealing gasket (204). A partition ring plate (202d) is provided between the drain cavity (202c) and the annular water cavity (202b). A raised column (202e) is provided at the center of the drain cavity (202c) on the water outlet channel frame (202). The side wall of the drain cavity (202c) on the water outlet channel frame (202) is provided with a water outlet pipe (202f) that communicates with it. The umbrella valve fixing seat (203) has a transition cavity (203a) arranged in an annular array on the side away from the isolation sealing gasket (204), and the transition cavity (203a) has a first through hole (203b) and a second through hole (203c). The first through hole (203b) connects the water circulation cavity (202b) and the transition cavity (203a), and the second through hole (203c) connects the drainage cavity (202c).

2. The controllable pressurized precision micro water pump as described in claim 1, characterized in that: The inlet of the water inlet pipe (102) is provided with an inner claw (106), and a pressure cap (107) is fitted on the circumferential side wall of the inner claw (106). The pressure cap (107) is snapped into the outer wall of the water inlet pipe (102). A sealing ring (108) is provided inside the water inlet pipe (102), and the sealing ring (108) is located at one end of the inner claw (106) near the multidimensional microfiltration liner (103a).

3. The controllable pressurized precision micro water pump as described in any one of claims 1 or 2, characterized in that: The valve stem cavity (201a) is provided with a second gasket (201e) arranged in an annular array on the inner wall, and a disc (109) matching the inner wall of the second gasket (201e) is movably arranged inside the valve stem cavity (201a). A valve stem (110) is welded to the bottom end of the disc (109), and the valve stem (110) passes through the water passage hole (201c) and is fixedly connected to the top end of the dynamic sealing gasket (105). The valve stem cavity (201a) has a third gasket (201f) arranged in a ring array at the bottom of the inner wall of the valve stem cavity (201a). The diameter of the valve stem (110) is smaller than the diameter of the water passage hole (201c).

4. The controllable, pressurized, precision micro water pump as described in claim 3, characterized in that: The umbrella valve fixing seat (203) is provided with a mounting post (203d) on the side near the water outlet channel frame (202), and a rubber seat (205) is sleeved on the mounting post (203d). A rubber sheet (206) is provided at the top of the rubber seat (205), and the rubber sheet (206) is sealed to the second through hole (203c).

5. The controllable, pressurized, precision micro water pump as described in claim 4, characterized in that: A dynamic sealing sheet (207) is provided between the water outlet channel frame (202) and the valve stem movable seat (201).

6. The controllable, pressurized, precision micro water pump as described in claim 5, characterized in that: It also includes a drive assembly (300), which includes a cup holder (301) disposed on the umbrella valve holder (203), and a plurality of cups (302) are mounted in a ring array on the cup holder (301), and the cups (302) in the ring array correspond to and match the transition cavity (203a) of the ring array.

7. The controllable pressurized precision micro water pump as described in claim 6, characterized in that: A drive plate (303) is fixedly installed on the cup (302) of the ring array, and a connecting sleeve (304) is provided at the top of the drive plate (303). The drive assembly (300) further includes a motor base (305) disposed on the cup holder (301), and a motor (306) is fixedly installed on the motor base (305). An eccentric drive shaft (307) is fixedly installed on the output shaft of the motor (306), and the eccentric drive shaft (307) is inserted into the connecting sleeve (304).

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