Miniature water suction pump with controllable precision under pressure

Abstract

The invention relates to the technical field of water suction pumps, in particular to a controllable pressure precision miniature water suction pump which comprises a water inlet assembly, the water inlet assembly comprises a bottom cover, a water inlet pipe communicated with an inner cavity of the bottom cover and a water quantity monitoring part arranged in the water inlet pipe, and a water passing sleeve column is arranged at the center of the inner cavity of the bottom cover; a plurality of first filler strips are arranged on the inner wall of the water passing sleeve column in an annular array mode, a reset spring and a movable sealing gasket are arranged in the water passing sleeve column, the movable sealing gasket is a cylinder, the outer wall of the movable sealing gasket is attached to the inner walls of the first filler strips in the annular array in a matched mode, one ends of the first filler strips are connected with the bottom end of the water passing sleeve column, and the other ends of the first filler strips are connected with the water passing sleeve column. According to the diaphragm water pump for the water dispenser, the problems that a diaphragm water pump of the water dispenser cannot interrupt water flow under the condition that a water source has water pressure, the water flow cannot be prevented from flowing back, and the water yield cannot be accurately calculated are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of water pumps, in particular to a micro water pump with controllable pressure accuracy. Background Art

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

[0003] At the same time, after the water dispenser is connected to water, the water at the water outlet of the water dispenser tends to flow back into the diaphragm water pump cavity. The backflowing water will carry bacteria and microorganisms in the air at the water outlet of the water dispenser, causing the backflowing water to enter the diaphragm water pump cavity. After that, bacteria and microorganisms multiply inside the cavity, thereby contaminating the subsequent purified water source.

[0004] Moreover, the diaphragm water pump currently used in water dispensers cannot accurately calculate the amount of water delivered, so it is necessary to cooperate with other components to achieve the setting of the water volume. In order to solve these problems, we proposed a controllable pressure-precision micro water pump. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the above-mentioned problems or the problems in the prior art that the diaphragm water pump cannot interrupt the water flow when the water source has water pressure, cannot prevent the water flow from flowing back, and cannot accurately calculate the amount of water output, the present invention is proposed.

[0007] Therefore, the object of the present invention is to provide a micro water pump with controllable pressure accuracy.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: a controllable pressure-precision micro water pump, comprising a water inlet assembly, which comprises a bottom cover, a water inlet pipe connected to the inner cavity of the bottom cover, and a water volume monitoring component arranged in the water inlet pipe, a water jacket column is arranged at the center of the inner cavity of the bottom cover, and a plurality of first pads are arranged in a circular array on the inner wall of the water jacket column, a reset spring and a dynamic sealing gasket are arranged inside the water jacket column, the dynamic sealing gasket is a cylinder, and the outer wall of the dynamic sealing gasket matches and fits with the inner wall of the first pads in the circular array, one end of the first pad is connected to the bottom end of the water jacket column, and the other end of the first pad protrudes from the water jacket column, the water volume monitoring component comprises a multidimensional microfiltration lining arranged in the water inlet pipe, and also comprises a magnetic pole turbine rotor fixedly connected to the multidimensional microfiltration lining, and a Hall chip arranged outside the water inlet pipe and corresponding to the magnetic pole turbine rotor.

[0009] As a preferred solution of the controllable pressure-precision micro water pump of the present invention, an inner claw is provided at the water inlet of the water inlet pipe, and a pressure cover is sleeved on the circumferential side wall of the inner claw, the pressure cover and the outer wall of the water inlet pipe are clamped, a sealing ring is provided inside the water inlet pipe, and the sealing ring is provided at one end of the inner claw close to the multi-dimensional microfiltration lining.

[0010] As a preferred solution of the controllable pressure-precision micro water pump of the present invention, it also includes a water pump chamber assembly, which includes a valve stem movable seat arranged above the bottom cover, a valve stem chamber and a first water flow channel are provided on the valve stem movable seat, and a water through hole is provided at the center of the valve stem chamber, a water flow outlet is provided on the side wall of the valve stem chamber, and the valve stem chamber and the first water flow channel are connected through the water flow outlet.

[0011] As a preferred solution of the controllable pressure-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 hole and is fixedly connected to the top end of the dynamic sealing gasket, a third gasket is arranged in an annular array on 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 hole.

[0012] As a preferred solution of the controllable pressure-precision micro water pump of the present invention, the water pump chamber assembly also includes a water outlet channel skeleton arranged above the valve stem movable seat, an umbrella-shaped valve fixing seat arranged above the water outlet channel skeleton, and an isolation sealing gasket arranged between the water outlet channel skeleton and the umbrella-shaped valve fixing seat, a second water flow channel matching the first water flow channel is opened on the water outlet channel skeleton, and an annular water cavity connected to the second water flow channel is opened on the side where the water outlet channel skeleton and the umbrella-shaped valve fixing seat are fitted to each other, a drainage cavity is opened at the center position of the water outlet channel skeleton and the umbrella-shaped valve fixing seat close to the isolation sealing gasket, and a dividing ring plate is arranged between the drainage cavity and the annular water cavity, a padding column is arranged at the center position of the drainage cavity on the water outlet channel skeleton, and a water outlet pipe connected to the drainage cavity side wall on the water outlet channel skeleton is arranged.

[0013] As a preferred solution of the controllable pressure-precision micro water pump of the present invention, a transition cavity is provided in a circular array on the side of the umbrella-shaped valve fixing seat away from the isolation sealing gasket, and a first through hole and a second through hole are provided on the transition cavity, the first through hole connects the annular water cavity and the transition cavity, and the second through hole connects the drainage cavity.

[0014] As a preferred solution of the controllable pressure-precision micro water pump of the present invention, a mounting column is arranged on one side of the umbrella-shaped valve fixing seat close to the water outlet channel skeleton, and a rubber seat is sleeved on the mounting column, a rubber is arranged on the top of the rubber seat, and the rubber and the second through hole are correspondingly sealed.

[0015] As a preferred solution of the controllable pressure-precision micro water pump of the present invention, a dynamic sealing rubber film is arranged between the water outlet channel skeleton and the valve stem movable seat.

[0016] As a preferred solution of the controllable pressure-precision micro water pump of the present invention, it also includes a driving assembly, which includes a leather cup fixing seat arranged on the umbrella-shaped valve fixing seat, and a plurality of leather cups are installed in an annular array on the leather cup fixing seat, and the leather cups in the annular array correspond to and match the transition chambers of the annular array.

[0017] As a preferred solution of the controllable pressure-precision micro water pump of the present invention, wherein: a driving disk is fixedly installed on the leather cup of the annular array, and a sleeve column is arranged on the top of the driving disk, the driving assembly also includes a motor base arranged on the leather cup fixing seat, and a motor is fixedly installed on the motor base, an eccentric driving shaft is fixedly installed on the output shaft of the motor, and the eccentric driving shaft is inserted in the sleeve column.

[0018] The beneficial effects of the controllable pressure-precision micro water pump of the present invention are as follows: the present invention installs a water volume monitoring component inside the water inlet pipe, so that when water flows in from the water inlet pipe, the water flow impacts the multi-dimensional microfiltration lining to drive the magnetic pole turbine rotor to rotate, and the rotating magnetic pole turbine rotor calculates the water volume through the corresponding Hall chip.

[0019] The present invention is connected to a pressurized water source. When the motor is not working, all components are in a standby state. The pressurized water source drives the sealing gasket to seal the water hole. The greater the water pressure, the higher the sealing performance. When the diaphragm water pump is used in a water dispenser, there is no need to design a separate valve at the water outlet of the diaphragm water pump, thereby saving costs.

[0020] In the present invention, the rubber seat and the rubber form a one-way valve in the second through hole, so that the water in the transition chamber can push the rubber downward and enter the drainage chamber through the pressure generated by the reciprocating agitation of the leather cup, and cannot flow back from the drainage chamber to the transition chamber, thereby avoiding the occurrence of water backflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0022] Figure 1 It is an overall schematic diagram of a micro water pump with controllable pressure precision.

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

[0024] Figure 3 The schematic diagram of the valve stem movable seat structure of a micro water pump with controllable pressure precision.

[0025] Figure 4 This is a schematic diagram of the internal structure of the connection between the water inlet component and the valve stem movable seat of a controllable pressure-precision micro water pump.

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

[0027] Figure 6 It is a structural schematic diagram of the umbrella-shaped valve fixing seat of the controllable pressure precision micro water pump close to the leather cup side.

[0028] Figure 7 This is a schematic diagram of the structure of the umbrella-shaped valve fixing seat of the controllable pressure-precision micro water pump attached to one side of the isolation sealing gasket.

[0029] Figure 8 This is a schematic diagram of the internal structure of the water outlet channel skeleton, isolation sealing gasket and umbrella-type valve fixing seat of a controllable pressure-precision micro water pump.

[0030] Fig. 9 Schematic diagram of the explosion structure of a micro water pump with controllable pressure precision. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1, reference Figures 1 to 9 , which is the first embodiment of the present invention, and provides a micro water pump with controllable pressure accuracy, which solves the problem that the diaphragm water pump cannot interrupt the water flow, cannot prevent the water flow from flowing back, and cannot accurately calculate the amount of water when the water source has water pressure. It includes a water inlet assembly 100, which includes a bottom cover 101, a water inlet pipe 102 connected to the inner cavity of the bottom cover 101, and a water volume monitoring component 103 arranged in the water inlet pipe 102. A water jacket column 101a is arranged at the center of the inner cavity of the bottom cover 101, and a plurality of first pads 101b are arranged in an annular array on the inner wall of the water jacket column 101a, and a complex The dynamic sealing gasket 105 is a cylinder, and the outer wall of the dynamic sealing gasket 105 matches and fits with the inner wall of the first pad 101b of the annular array, one end of the first pad 101b is connected to the bottom end of the water jacket column 101a, and the other end of the first pad 101b protrudes from the water jacket column 101a, the water volume monitoring component 103 includes a multi-dimensional microfiltration lining 103a arranged in the water inlet pipe 102, and also includes a magnetic pole turbine rotor 103b fixedly connected to the multi-dimensional microfiltration lining 103a, and a Hall chip 103c arranged 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 source flows from the water inlet pipe 102 toward the inner cavity of the bottom cover 101, and the flow passes through the multidimensional microfiltration lining 103a in the water inlet pipe 102. When the water flows through the multidimensional microfiltration lining 103a, it pushes the multidimensional microfiltration lining 103a to rotate in the water inlet pipe 102, thereby driving the magnetic pole turbine rotor 103b fixedly connected to the multidimensional microfiltration lining 103a to rotate. The rotation of the magnetic pole turbine rotor 103b cooperates with the Hall chip 103c, and the water intake amount is calculated 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 upward and downward movement of the dynamic sealing gasket 105 of the cylinder, and make the dynamic sealing gasket 105 that moves up and down not fit the inner wall of the water jacket column 101a. At the same time, the multiple first pads 101b arranged in the annular array all protrude from the top of the water jacket column 101a. Then, after the water flows into the internal cavity of the bottom cover 101 and fills it up, it will enter the interior of the water jacket column 101a from the gaps between the multiple first pads 101b of 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 fit the water hole 201c on one side of the valve stem movable seat 201, thereby realizing that the diaphragm water pump can 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 seal 105 sealing the water hole 201c is the same as the water flow direction, and the initial sealing force is the elastic force of the return spring 104. When the pressurized water source enters the inside of the water jacket column 101a, the water pressure will squeeze the dynamic seal 105, thereby making the sealing effect of the dynamic seal 105 better. An inner claw 106 is provided at the water inlet of the water inlet pipe 102, and a gland 107 is sleeved on the circumferential side wall of the inner claw 106. The gland 107 is clamped with 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 provided at one end of the inner claw 106 close to the multi-dimensional microfiltration liner 103a.

[0038] An inner claw 106 is provided at the water inlet of the water inlet pipe 102, and a pressure cover 107 is sleeved on the circumferential side wall of the inner claw 106. The pressure cover 107 is clamped with 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 arranged at one end of the inner claw 106 close to the multi-dimensional microfiltration lining 103a.

[0039] In this embodiment, the pressure cap 107 is sleeved on the outside of the circumference 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 clamped to fix the inner claw 106. The inner claw 106 is set at the water inlet pipe 102 port to clamp and fix the water source pipe that is inserted in.

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

[0041] Example 2, reference Figures 1 to 9 , which is the second embodiment of the present invention. Different from the previous embodiment, it also includes a water pump chamber assembly 200, which includes a valve stem movable seat 201 arranged above the bottom cover 101, and a valve stem chamber 201a and a first water flow channel 201b are opened on the valve stem movable seat 201, and a water hole 201c is opened at the center of the valve stem chamber 201a, a water flow outlet 201d is opened on the side wall of the valve stem chamber 201a, and the valve stem chamber 201a and the first water flow channel 201b are connected through the water flow outlet 201d.

[0042] A second gasket 201e is arranged in a circular array on the inner wall of the valve stem cavity 201a, and a disc 109 matching the inner wall of the second gasket 201e in the circular 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 hole 201c and is fixedly connected to the top of the dynamic sealing gasket 105, a third gasket 201f is arranged in a circular array on the bottom end of the inner wall of the valve stem cavity 201a, and the diameter of the valve stem 110 is smaller than the diameter of the water hole 201c.

[0043] In this embodiment, the valve stem movable seat 201 and the top end of the bottom cover 101 are fixedly connected, and a sealing gasket is arranged between the valve stem movable seat 201 and the bottom cover 101, and the sealing gasket is used to improve the sealing performance between the valve stem movable seat 201 and the bottom cover 101. After the valve stem movable seat 201 and the top end of the bottom cover 101 are fixedly connected, the first pad 101b protruding from the water sleeve column 101a fits the bottom end of the valve stem movable seat 201, and the dynamic sealing gasket 105, the water 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 dynamic sealing rubber 207, thereby driving the valve stem 110 to push the dynamic sealing gasket 105 downward to disengage from the water hole 201c and release the seal. At this time, the water flow in the inner cavity of the bottom cover 101 passes through the middle gap of the multiple first pads 101b of the annular array, and then flows into the valve stem cavity 201a from the gap between the water hole 201c and the valve stem 110, and then flows into the first water flow channel 201b from the water flow 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 strip 101b of the annular array are matched and fit together, the disc 109 and the inner wall of the second gasket strip 201e of the annular array are matched together, and the disc 109 and the dynamic sealing gasket 105 are connected through the valve stem 110, so that when the disc 109 moves up and down, the positions of the valve stem 110 and the water hole 201c are always in a coaxial state, and no tilting occurs, thereby ensuring the stability of water pumping by the pump body.

[0046] In addition, a third pad 201f is arranged in an annular array at the bottom end of the valve stem cavity 201a, so that when the disc 109 moves to the bottommost position, it is ensured that the disc 109 does not fit and block the water hole 201c. At the same time, multiple second pads 201e are arranged in an annular shape. In addition to limiting the position of the disc 109, a certain gap is also created 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 further includes a water outlet channel frame 202 disposed above the valve stem movable seat 201, an umbrella-shaped valve fixing seat 203 disposed above the water outlet channel frame 202, and an isolation sealing pad 204 disposed between the water outlet channel frame 202 and the umbrella-shaped valve fixing seat 203. The water outlet channel frame 202 is provided with a second water flow channel 202a matching the first water flow channel 201b, and the side where the water outlet channel frame 202 and the umbrella-shaped valve fixing seat 203 are attached to each other is provided with a second water flow channel 202a matching the first water flow channel 201b. The two water flow channels 202a are connected to an annular water cavity 202b, and a drainage cavity 202c is provided at the center position of the water outlet channel skeleton 202 and the umbrella-shaped valve fixing seat 203 close to the isolation sealing gasket 204, and a separating ring plate 202d is provided between the drainage cavity 202c and the annular water cavity 202b, a raising column 202e is provided at the center position of the drainage cavity 202c on the water outlet channel skeleton 202, and a water outlet pipe 202f connected thereto is provided on the side wall of the drainage cavity 202c on the water outlet channel skeleton 202.

[0048] In this embodiment, the isolation sealing gasket 204 is used for sealing installed between the water outlet channel skeleton 202 and the umbrella-shaped valve fixing seat 203, and a plurality of through holes are opened on the isolation sealing gasket 204, so that the water outlet channel skeleton 202 and the annular water cavity 202b on the umbrella-shaped valve fixing seat 203 are interconnected, and the annular water cavity 202b and the drainage cavity 202c are 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 annular water cavity 202b through the first water flow channel 201b and the second water flow channel 202a.

[0050] A transition cavity 203a is provided in a circular array on one side of the umbrella-shaped valve fixing seat 203 away from the isolation sealing pad 204, and a first through hole 203b and a second through hole 203c are provided on the transition cavity 203a. The first through hole 203b connects the annular water cavity 202b and the transition cavity 203a, and the second through hole 203c connects the drainage cavity 202c.

[0051] A mounting column 203d is provided on one side of the umbrella valve fixing seat 203 close to the water outlet channel frame 202, and a rubber seat 205 is sleeved on the mounting column 203d. A rubber 206 is provided on the top of the rubber seat 205, and the rubber 206 and the second through hole 203c are correspondingly sealed.

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

[0053] Specifically, the rubber seat 205 is sleeved and installed on the mounting column 203d, and the other end of the rubber seat 205 is in contact with the raising column 202e. The rubber 206 is arranged on one end of the annular side wall of the rubber seat 205 close to the mounting column 203d. Under the action of the driving component 300, the water in the transition chamber 203a expands the rubber 206 and flows into the drainage chamber 202c.

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

[0055] Example 3, reference Figures 1 to 9 , which is the third embodiment of the present invention. Different from the previous embodiment, it also includes a driving assembly 300, which includes a leather cup fixing seat 301 arranged on the umbrella-shaped valve fixing seat 203, and a plurality of leather cups 302 are installed in an annular array on the leather cup fixing seat 301, and the annular array leather cups 302 correspond to and match the transition chamber 203a of the annular array.

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

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

[0058] In this embodiment, the multiple leather cups 302 in the annular array are formed by integral injection molding, and have a connecting rubber at the bottom. The multiple leather cups 302 formed by integral injection molding are installed from the bottom of the leather cup fixing seat 301 to the top, and the connecting rubber on the leather cup 302 is used for sealing the connection between the umbrella-shaped valve fixing seat 203 and the leather cup fixing seat 301.

[0059] Specifically, the multiple leather cups 302 in the annular array reciprocate up and down in turn, generating negative pressure on the cavity inside the umbrella-shaped valve fixed seat 203, the water outlet channel skeleton 202, and the valve stem movable seat 201, so that the dynamic sealing film 207 bulges downward, pushing the disc 109 to move downward, thereby unlocking the seal of the dynamic sealing gasket 105.

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

[0061] Furthermore, the driving disk 303 is provided with a plurality of mounting holes in a circular array, and the mounting holes are snap-fitted to the connecting ends of the leather cup 302. When the motor 306 is started, its output shaft drives the eccentric driving shaft 307 to rotate. When the eccentric driving shaft 307 rotates, it drives the driving disk 303 to be pulled back and forth, so that the leather cup 302 connected to the driving disk 303 is reciprocated, so that negative pressure is generated inside the water pump chamber assembly 200, thereby realizing the water flow delivery.

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

[0063] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0064] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0065] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A micro water pump with controllable pressure accuracy, characterized by: include, A water inlet assembly (100), comprising a bottom cover (101), a water inlet pipe (102) communicating with the inner cavity of the bottom cover (101), and a water volume monitoring component (103) disposed in the water inlet pipe (102); A water jacket column (101a) is arranged at the center of the inner cavity of the bottom cover (101), and a plurality of first gasket strips (101b) are arranged in an annular array on the inner wall of the water jacket column (101a); a return spring (104) and a dynamic sealing gasket (105) are arranged inside the water jacket column (101a); the dynamic sealing gasket (105) is a cylinder, and the outer wall of the dynamic sealing gasket (105) matches and fits with the inner wall of the first gasket strips (101b) in the annular array; One end of the first gasket strip (101b) is connected to the bottom end of the water jacket column (101a), and the other end of the first gasket strip (101b) protrudes from the water jacket column (101a); The water volume monitoring component (103) comprises a multidimensional microfiltration lining (103a) arranged in the water inlet pipe (102), a magnetic pole turbine rotor (103b) fixedly connected to the multidimensional microfiltration lining (103a), and a Hall chip (103c) arranged outside the water inlet pipe (102) and corresponding to the magnetic pole turbine rotor (103b).

2. The controllable pressure precision micro water pump according to claim 1, characterized in that: An inner claw (106) is provided at the water inlet of the water inlet pipe (102), and a pressure cover (107) is sleeved on the circumferential side wall of the inner claw (106), the pressure cover (107) and the outer wall of the water inlet pipe (102) are clamped together, and a sealing ring (108) is provided inside the water inlet pipe (102), and the sealing ring (108) is arranged at one end of the inner claw (106) close to the multi-dimensional microfiltration lining (103a).

3. The controllable pressure precision micro water pump according to claim 1 or 2, characterized in that: It also includes a water pump chamber assembly (200), which includes a valve stem movable seat (201) arranged above the bottom cover (101), a valve stem chamber (201a) and a first water flow channel (201b) are provided on the valve stem movable seat (201), and a water hole (201c) is provided at the center of the valve stem chamber (201a), a water flow outlet (201d) is provided on the side wall of the valve stem chamber (201a), and the valve stem chamber (201a) and the first water flow channel (201b) are connected through the water flow outlet (201d).

4. The controllable pressure precision micro water pump according to claim 3, characterized in that: The inner wall of the valve stem cavity (201a) is provided with a second gasket strip (201e) in an annular array, and a disc (109) matching the inner wall of the second gasket strip (201e) in the annular array is movably provided 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 hole (201c) and is fixedly connected to the top end of the dynamic sealing gasket (105); A third gasket strip (201f) is provided 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 hole (201c).

5. The controllable pressure precision micro water pump according to claim 4, characterized in that: The water pump chamber assembly (200) further comprises a water outlet channel frame (202) arranged above the valve stem movable seat (201), an umbrella-shaped valve fixing seat (203) arranged above the water outlet channel frame (202), and an isolation sealing gasket (204) arranged between the water outlet channel frame (202) and the umbrella-shaped valve fixing seat (203); The water outlet channel skeleton (202) is provided with a second water flow channel (202a) matching the first water flow channel (201b), and a water annular cavity (202b) communicating with the second water flow channel (202a) is provided on the side where the water outlet channel skeleton (202) and the umbrella-shaped valve fixing seat (203) are in contact with each other, and a drainage cavity (202c) is provided at the center of the side of the water outlet channel skeleton (202) and the umbrella-shaped valve fixing seat (203) close to the isolation sealing gasket (204), and a separation ring plate (202d) is provided between the drainage cavity (202c) and the water annular cavity (202b), a heightening column (202e) is provided at the center of the drainage cavity (202c) on the water outlet channel skeleton (202), and a water outlet pipe (202f) communicating with the drainage cavity (202c) is provided on the side wall of the drainage cavity (202c) on the water outlet channel skeleton (202).

6. The controllable pressure precision micro water pump according to claim 5, characterized in that: A transition cavity (203a) is provided in a circular array on one side of the umbrella-shaped valve fixing seat (203) away from the isolation sealing pad (204), and a first through hole (203b) and a second through hole (203c) are provided on the transition cavity (203a), wherein the first through hole (203b) is connected to the annular water cavity (202b) and the transition cavity (203a), and the second through hole (203c) is connected to the drainage cavity (202c).

7. The controllable pressure precision micro water pump according to claim 6, characterized in that: A mounting column (203d) is provided on one side of the umbrella-shaped valve fixing seat (203) close to the water outlet channel frame (202), and a rubber seat (205) is sleeved on the mounting 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 correspondingly sealed.

8. The controllable pressure precision micro water pump according to claim 7, characterized in that: A dynamic sealing rubber sheet (207) is provided between the water outlet channel skeleton (202) and the valve stem movable seat (201).

9. The controllable pressure precision micro water pump according to claim 8, characterized in that: It also includes a driving assembly (300), which includes a leather cup fixing seat (301) arranged on the umbrella-shaped valve fixing seat (203), and a plurality of leather cups (302) are installed in an annular array on the leather cup fixing seat (301), and the leather cups (302) in the annular array correspond to and match the transition chambers (203a) of the annular array.

10. The micro water pump with controllable pressure accuracy as claimed in claim 9, characterized in that: A driving disk (303) is fixedly mounted on the leather cups (302) of the annular array, and a connecting sleeve column (304) is arranged on the top of the driving disk (303); The driving assembly (300) further comprises a motor base (305) arranged on the leather cup fixing seat (301), and a motor (306) is fixedly mounted on the motor base (305), an eccentric driving shaft (307) is fixedly mounted on the output shaft of the motor (306), and the eccentric driving shaft (307) is inserted into the connecting sleeve (304).

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