WO2023078326A1

WO2023078326A1 - Electromagnetic pump having flow monitoring function

Info

Publication number: WO2023078326A1
Application number: PCT/CN2022/129464
Authority: WO
Inventors: 肖�琳; 冯启军
Original assignee: 骏马精密工业(惠州)有限公司
Priority date: 2021-11-05
Filing date: 2022-11-03
Publication date: 2023-05-11
Also published as: CN114001008A; CN114001008B

Abstract

An electromagnetic pump having a flow monitoring function, comprising a tube body (10), a piston (20), a first elastic member (31), a second elastic member (32), a coil (40), a first flow stopping assembly (51), a second flow stopping assembly (52), a magnetic member (60), and a sensor (70). The two ends of the tube body (10) are provided with a water inlet (11) and a water outlet (12), respectively. The magnetic member (60) is provided in the tube body (10) and is distributed in the direction approaching the water outlet (12). The sensor (70) is provided on the exterior the tube body (10) and is distributed in the direction approaching the water outlet (12). The described electromagnetic pump can achieve real-time monitoring, and the situation of dry running or excessive conveying is prevented.

Description

Solenoid pump with flow monitoring

technical field

The invention belongs to the technical field of electromagnetic vibrating pumps, in particular to an electromagnetic pump with a flow monitoring function.

Background technique

Electromagnetic pump refers to the pump in which the current-carrying fluid in the magnetic field flows in a certain direction under the action of electromagnetic force; its principle is: the current passes through the electromagnetic winding to form an alternating magnetic field, and the interaction between the magnetic field and the current in the conductive fluid makes the fluid The pressure gradient generated by the electromagnetic force interacts with the movable pump body to drive the pump body to vibrate, thereby promoting the output of fluid movement. Therefore, this type of electromagnetic pump is also called electromagnetic vibration pump, and some small electromagnetic vibration pumps are widely used in household appliances, such as electric irons, coffee machines, cleaning machines and other household appliances that require water supply and infusion. A small electromagnetic vibration pump with simple structure, light volume, safe and reliable use, to meet the requirements of its structure and technical purpose.

Existing electromagnetic pumps are usually used to transport water, and then use flowmeters to calculate the flow through the electromagnetic pumps to achieve flow monitoring, but the flowmeters and electromagnetic pumps are set separately, and there are always certain errors in the detection results; and the existing The electromagnetic pump cannot transmit the working signal, and only has the function of simply transporting water. The control system of the electrical appliance cannot monitor the current working status of the electromagnetic pump, so that the electromagnetic pump may run dry or over-delivery and cannot be controlled in time. In the working state, the service life of the electromagnetic pump is greatly shortened.

Contents of the invention

The purpose of the present invention is to provide an electromagnetic pump with a flow monitoring function, which aims to solve the problem that the control system of the electric appliance in the prior art cannot detect the working state of the electromagnetic pump, which causes the electromagnetic pump to fail even if it runs dry or over-delivers. The technical problem that cannot be controlled in time and shortens the service life of the electromagnetic pump.

In order to achieve the above purpose, an electromagnetic pump with a flow monitoring function provided by an embodiment of the present invention includes a pipe body, a piston, a first elastic member, a second elastic member, a coil, a first flow stop assembly, and a second flow stop assembly , magnetic parts and sensors; the inside of the tube body is hollow, and the two ends of the tube body are respectively provided with a water inlet and a water outlet, and the water inlet communicates with the external water inlet channel and is used to suck water flow, and in The water outlet at the other end outputs water flow; the piston is movably arranged in the tube body and moves back and forth along the two ends of the tube body for sucking or outputting water flow; the first elastic member and the second elastic member The elastic parts are respectively arranged at both ends of the piston and are used to reset the piston; the coil is sleeved on the outside of the pipe body and used to control the reciprocating movement of the piston along the two ends of the pipe body; The first flow stop assembly and the second flow stop assembly are sequentially arranged between the piston and the water outlet and both are used to prevent water flow from flowing backward; the magnetic part is arranged in the pipe body and is close to the water outlet The direction of the arrangement; the sensor is arranged outside the tube and arranged in the direction close to the water outlet, for detecting the displacement of the magnetic member and transmitting the signal to the control system of the electrical appliance.

Optionally, a first cavity for installing the piston, a second cavity for installing the first flow stop assembly, and a third cavity for installing the second flow stop assembly are sequentially provided in the body of the tube; The water inlet, the first cavity, the second cavity, the third cavity and the water outlet communicate with each other.

Optionally, the piston is movably arranged in the first cavity and divides the first cavity into a first left cavity and a first right cavity; the first elastic member is arranged in the first cavity The second elastic member is arranged in the first right cavity and abuts against the right end of the piston to drive the piston to return to the right. The piston resets to the left.

Optionally, the piston is provided with a pressure relief chamber running through both ends thereof, and the two ends of the pressure relief chamber communicate with the first left cavity and the first right cavity respectively, and the piston is further There is at least one pressure relief hole running through the other end thereof, one end of the pressure relief hole communicates with the first left cavity, and the other end of the pressure relief hole communicates with the first right cavity.

Optionally, the first flow stop assembly includes a third elastic member, a first stop member and a sealing member; both the third elastic member and the sealing member are arranged in the second cavity, and the One end of the third elastic member abuts against the inner wall of the second cavity, and the other end of the third elastic member is elastically connected to one end of the first stopper.

Optionally, the second stopper assembly includes a fastener, a fourth elastic member, and a second stopper; the fastener is disposed in the third cavity, and one end of the fourth elastic member Abutting against the fastener, the other end of the fourth elastic member is elastically connected to one end of the second stopper, and the other end of the second stopper is movably connected to the second cavity .

Optionally, the magnetic member is disposed in the third cavity, and one end of the magnetic member is elastically connected to the fourth elastic member, and the other end of the magnetic member is connected to the second stopper. The sensor is arranged outside the third cavity to detect the displacement of the magnetic element.

Optionally, one end of the magnetic member is provided with a first abutting groove that matches the shape of the fourth elastic member and is used to abut against the fourth elastic member, and the other end of the magnetic member is provided with a first abutting groove that matches the shape of the fourth elastic member. The shape of the second stopper is matched with the second abutting groove for abutting against the second stopper.

Optionally, the magnetic member is provided with a number of overflow holes that run through both ends of the center, and the two ends of each overflow hole communicate with the first abutment groove and the second abutment groove respectively. .

Optionally, the magnetic part is arranged in the third cavity, and the magnetic part is snap-fitted with the second stopper; or the magnetic part is arranged in the third cavity , and the magnetic part is fixedly connected with the second stopper.

The above one or more technical solutions in the electromagnetic pump with flow monitoring function provided by the embodiments of the present invention have at least one of the following technical effects: the electromagnetic pump with flow monitoring function of the present invention is provided with an internal hollow pipe body, The two ends of the pipe body are respectively provided with a water inlet and a water outlet, and the water inlet and the water outlet are connected. There is a piston inside the pipe body. The piston is controlled by a coil arranged on the outside of the pipe body. The coil can control the movement of the piston. When the piston moves back and forth along the two ends of the length of the pipe body, the functions of water absorption and water pressure can be realized respectively, which realizes the process of sucking water flow from the water inlet and spraying water flow from the water outlet. One end of the piston is set in turn There are a first flow stop assembly and a second flow stop assembly. When the piston is at rest, the size of the space formed between the first flow stop assembly and the second flow stop assembly is relatively constant. When the piston starts to move and approaches the When the water outlet is opened, the space between the first flow-stop component and the second flow-stop component will become larger, and the pressure between the first flow-stop component and the second flow-stop component will drop, so that the pipe body will drain the water Inhale from the water inlet, and when the piston starts to move towards the water inlet, the first flow stop component will open, and the water flow will continue to flow into the pipe body during the water suction process of the water inlet, and after the water flow fills the pipe body, the pipe body will The internal pressure gradually rises, and the water flow will be pressed to the position between the first flow-stop component and the second flow-stop component. At this time, the water inlet process ends, and the first flow-stop component tightens the piston to prevent the water from flowing back to the side of the piston. At this time, the piston starts to move toward the water outlet, and the pressure in the pipe body continues to rise, and the piston continuously compresses the water flow between the first flow-stop component and the second flow-stop component, and finally the second flow-stop component opens, and the water flow It will be pressed to one end of the second flow-stop component and sprayed from the water outlet. At this time, the water outlet process is over, and the second flow-stop component is closed to prevent the water from flowing back into the pipe from the water outlet. When the second flow-stop component When it is opened and the water flow is sprayed out, the second flow-stop component will drive the magnetic part to move towards the end of the water outlet. A sensor is installed on the outside of the water outlet. When the magnetic part moves, the sensor can detect the action signal of the magnetic part. , and transmit the signal to the control system of the electrical appliance in real time, the control system of the electrical appliance calculates the flow rate according to the received signal, and can judge the current working state by comparing the received signal, so as to judge whether there has been water passing through, Effectively avoid dry running or excessive delivery of the device, and realize real-time monitoring.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only of the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative efforts.

Fig. 1 is a cross-sectional view of an electromagnetic pump with a flow monitoring function provided by an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a pipe body of an electromagnetic pump with a flow monitoring function provided by an embodiment of the present invention.

Fig. 3 is a partial sectional view of an electromagnetic pump with a flow monitoring function provided by an embodiment of the present invention.

Fig. 4 is a structural schematic diagram of a magnetic part of an electromagnetic pump with a flow monitoring function provided by an embodiment of the present invention.

Fig. 5 is another structural schematic diagram of the magnetic part of the electromagnetic pump with flow monitoring function provided by the embodiment of the present invention.

Fig. 6 is another cross-sectional view of the electromagnetic pump with flow monitoring function provided by the embodiment of the present invention.

Fig. 7 is another partial cross-sectional view of the electromagnetic pump with flow monitoring function provided by the embodiment of the present invention.

Fig. 8 is another cross-sectional view of the second elastic member of the electromagnetic pump with flow monitoring function provided by the embodiment of the present invention.

Fig. 9 is another structural schematic diagram of the second elastic member of the electromagnetic pump with flow monitoring function provided by the embodiment of the present invention.

Fig. 10 is another structural schematic diagram of the magnetic part of the electromagnetic pump with flow monitoring function provided by the embodiment of the present invention.

Wherein, each reference sign in the figure:

10—pipe body 11—water inlet 12—water outlet

13—the second cavity 14—the third cavity 15—the first left cavity

16—the first right cavity 20—piston 21—pressure relief chamber

22—Pressure relief hole 31—First elastic piece 32—Second elastic piece

40—coil 51—the first stop component 52—the second stop component

60—Magnetic part 61—First abutting groove 62—Second abutting groove

63—Overflow hole 70—Sensor 511—The third elastic member

512—the first stopper 513—seal 521—fastener

522—the fourth elastic piece 523—the second flow stop piece 601—the snap-in groove

5231—Clip block 5232—Clip piece 5233—Through slot.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the embodiments of the present invention and should not be construed as limitations of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical ", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the embodiments of the present invention, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense unless otherwise clearly specified and limited. Disassembled connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention according to specific situations.

In one embodiment of the present invention, as shown in FIGS. 1 to 3 , an electromagnetic pump with a flow monitoring function is provided, including a pipe body 10 , a piston 20 , a first elastic member 31 , a second elastic member 32 , and a coil 40 , a first flow stop assembly 51, a second flow stop assembly 52, a magnetic member 60 and a sensor 70; the inside of the pipe body 10 is hollow, and the two ends of the pipe body 10 are respectively provided with a water inlet 11 and an outlet The water inlet 12, the water inlet 11 communicates with the external water inlet channel and is used to inhale water flow, and the water outlet 12 at the other end outputs water flow; the piston 20 is movably arranged in the pipe body 10 and moves along the pipe Both ends of the body 10 move back and forth for inhaling or outputting water flow; the first elastic member 31 and the second elastic member 32 are respectively provided at both ends of the piston 20 and both are used to reset the piston 20; The coil 40 is sleeved on the outside of the tube body 10, and is used to control the reciprocating movement of the piston 20 along both ends of the tube body 10; the first stopper assembly 51 and the second stopper assembly 52 are sequentially It is arranged between the piston 20 and the water outlet 12 and is used to prevent water flow from flowing backward; the magnetic member 60 is arranged in the pipe body 10 and arranged in a direction close to the water outlet 12; the sensor 70 It is arranged outside the pipe body 10 and close to the water outlet 12 to detect the displacement of the magnetic member 60 and transmit the signal to the control system of the electrical appliance.

Specifically, the electromagnetic pump with flow monitoring function of the present invention is provided with a hollow pipe body 10, and the two ends of the pipe body 10 are respectively provided with a water inlet 11 and a water outlet 12, and the water inlet 11 and the water outlet 12 Connected, a piston 20 is arranged inside the pipe body 10, and the piston 20 is controlled by a coil 40 arranged outside the pipe body 10. The coil 40 can control the movement of the piston 20. When moving, the functions of water absorption and water pressure can be realized respectively, which realizes the process of sucking water flow from the water inlet 11 and spraying water flow from the water outlet 12. One end of the piston 20 is provided with a first flow stop assembly 51 and a second stop assembly in turn. Two flow stop components 52, when the piston 20 is at rest, the size of the space formed between the first flow stop component 51 and the second flow stop component 52 is relatively constant, when the piston 20 starts to move and approaches the water inlet 11 At this time, the space before the first flow-stop assembly 51 and the second flow-stop assembly 52 will become larger, and the pressure between the first flow-stop assembly 51 and the second flow-stop assembly 52 will drop, so that the pipe body will Water is sucked from the water inlet 11, and when the piston 20 starts to move toward the water inlet 11, the first flow stop assembly 51 will be opened, and the water flow will continuously flow into the pipe body 10 during the water inlet 11, and in the After the water flow fills the pipe body 10, the pressure inside the pipe body 10 gradually rises, and the water flow will be pressed to the position between the first flow stop assembly 51 and the second flow stop assembly 52. At this time, the water inlet process ends, and the first flow stop assembly The component 51 presses against the piston 20 to prevent the water flow back to the side of the piston 20. At this time, the piston 20 starts to move towards the water outlet 12. At this time, the pressure in the pipe body 10 continues to rise, and the piston 20 continuously compresses the first flow-stopping component. 51 and the second flow-stop assembly 52, and finally the second flow-stop assembly 52 is opened, the water flow will be pressed to one end of the second flow-stop assembly 52, and sprayed out from the water outlet 12, at this moment, the water outlet process ends, The second stopper assembly 52 is closed to prevent the water from pouring back into the pipe body 10 from the water outlet 12 . One end of the water outlet 12 is displaced, and a sensor 70 is installed on the outside of the water outlet 12. When the magnetic part 60 moves, the sensor 70 can detect the action signal of the magnetic part 60 and transmit the signal to the control system of the electrical appliance in real time. , the control system of the electrical appliance calculates the flow rate according to the received signal, and can judge the current working state by comparing the received signal, so as to judge whether there has been water passing through, effectively avoiding dry running or excessive delivery of the device situation, to achieve real-time monitoring.

In another embodiment of the present invention, as shown in FIGS. 1 to 3 , the first cavity for installing the piston 20 and the second cavity for installing the first flow stop assembly 51 are sequentially provided in the pipe body 10 . Cavity 13 and the third cavity 14 where the second stop assembly 52 is installed; the water inlet 11, the first cavity, the second cavity 13, the third cavity 14 and the The water outlets 12 communicate with each other. Specifically, a first cavity, a second cavity 13 and a third cavity 14 are sequentially opened in the length direction of the pipe body 10, and the water inlet 11, the first cavity, the second cavity 13, and the third cavity 14 and the water outlet 12 are communicated from left to right in order to form a passage, then when the pipe body 10 absorbs water, the water flow will pass through the water inlet 11, the first cavity, the second cavity 13, the third cavity 14, and finally It is output from the water outlet 12 to realize the pressurized injection action of the water flow.

In another embodiment of the present invention, as shown in FIGS. 1-3 , the piston 20 is movably disposed in the first cavity and divides the first cavity into a first left cavity 15 and a second cavity. A right cavity 16; the first elastic member 31 is arranged in the first left cavity 15 and abuts against the left end of the piston 20 to drive the piston 20 to reset to the right; the second elastic member 32 is disposed in the first right cavity 16 and abuts against the right end of the piston 20 to drive the piston 20 to return to the left. Specifically, the first elastic member 31 of this solution is a spring, the piston 20 is movably arranged in the first cavity, and the coil 40 can control the piston 20 to move back and forth in the length direction in the first cavity, and the piston 20 moves the first cavity A cavity is divided into the first left cavity 15 and the first right cavity 16, a first elastic member 31 is arranged in the first left cavity 15, the left end of the first elastic member 31 and the first left cavity 15 The inner wall abuts, the right end of the first elastic member 31 is connected with the left end of the piston 20 and drives the piston 20 to reset to the right, and a second elastic member 32 is arranged in the first right cavity 16, and the right end of the second elastic member 32 is connected to the second elastic member 32. The inner wall of a right cavity 16 abuts, the left end of the second elastic member 32 is connected with the right end of the piston 20 and drives the piston 20 to return to the left, and through the cooperation of the first elastic member 31 and the second elastic member 32, the piston 20 It can always be reset to prevent the piston 20 from being stuck.

In another embodiment of the present invention, as shown in Figures 1-3, the piston 20 is provided with a pressure relief chamber 21 running through its two ends, and the two ends of the pressure relief chamber 21 are respectively connected to the first left The cavity 15 communicates with the first right cavity 16, and the piston 20 is also provided with at least one pressure relief hole 22 passing through the other end thereof, and one end of the pressure relief hole 22 is connected to the first left cavity. 15, and the other end of the pressure relief hole 22 communicates with the first right cavity 16. Specifically, a pressure relief chamber 21 is opened through the two ends of the piston 20 in the length direction, and the two ends of the pressure relief chamber 21 communicate with the first left cavity 15 and the first right cavity 16 respectively. There is also at least one pressure relief hole 22 that runs through its side wall. Two symmetrically arranged pressure relief holes 22 are formed on the side wall of the piston 20 of this program. One end of the two pressure relief holes 22 is connected to the pressure relief chamber. 21, the other ends of the two pressure relief holes 22 are connected with the first right cavity 16, so that the pressure between the first left cavity 15 and the first right cavity 16 can be balanced, even if the piston 20 is in the first cavity When the cavity moves back and forth, the pressure in the first left cavity 15 or the first right cavity 16 will not increase suddenly, which is beneficial for the pipe body 10 to absorb or eject water more smoothly.

In another embodiment of the present invention, as shown in FIGS. 1 to 3 , the first stopper assembly 51 includes a third elastic member 511 , a first stopper 512 and a sealing member 513 ; the third elastic member 511 and the sealing member 513 are both arranged in the second cavity 13, one end of the third elastic member 511 abuts against the inner wall of the second cavity 13, and the other end of the third elastic member 511 One end is elastically connected to one end of the first stopper 512 . Specifically, the third elastic member 511 of this solution is a spring, the first flow stop member 512 is a ball, and the sealing member 513 is a sealing ring. One end of the third elastic member 511 abuts against the inner wall of the right end of the second cavity 13, and the second The other end of the three elastic parts 511 is elastically connected to one end of the first stopper 512. When the piston 20 moves and approaches one end of the water inlet 11, the water inlet 11 starts to absorb water, and the water flows through the first left cavity 15 and then flows into the pressure release. The left end of chamber 21, after the pressure relief chamber 21 is filled with water flow, the water flow will flow into the first right cavity 16 from the two pressure relief holes 22 or the right end of the pressure relief chamber 21, when the first left cavity 15, the pressure relief chamber 21 1. When the two pressure relief holes 22 and the first right cavity 16 are filled with water, the pressure in the cavity will press the water flow to the end with a lower pressure, so that the water flow will rush to the first flow stop 512 (that is, the direction of the second cavity 13), when the second cavity 13 is filled with water flow, the piston 20 starts to move toward one end of the water outlet 12, and at this moment, the right end of the piston 20 will press against the first flow stop member 512 One end of the first stopper 512 is pushed to move to the other end, so that the water flow in the other end of the first stopper 512 (that is, the second cavity 13) will be pressed out of the second cavity 13 by pressure, realizing The pressurized injection of water flow, after the water flow is ejected, the pressure in the first left cavity 15 and the first right cavity 16 decreases, the piston 20 moves to realize the water absorption process, and the first flow stop member 512 is positioned between the third elastic member 511 Under the action of elasticity, it is tightly pressed on the piston 20 to stop the water spraying action.

In another embodiment of the present invention, as shown in FIGS. 1-3 , the second stopper assembly 52 includes a fastener 521 , a fourth elastic member 522 and a second stopper 523 ; the fastener 521 is located in the third cavity 14, one end of the fourth elastic member 522 abuts against the fastening member 521, and the other end of the fourth elastic member 522 contacts the second stopper 523. One end of the second stopper 523 is elastically connected to the second cavity 13 . Specifically, the fastener 521 of this solution can be provided with a cover with external threads, the fourth elastic member 522 is a spring, the second stopper 523 is a ball, and the inner wall of the third cavity 14 is provided with internal threads. , the fastener 521 is fastened in the third cavity 14 through an external thread, one end of the fourth elastic member 522 abuts against the right end of the fastener 521, and the other end of the fourth elastic member 522 contacts the second stopper 523 One end of the second stopper 523 is elastically connected, and the other end of the second stopper 523 is flexibly connected to the second cavity 13. When the water flow is sprayed out of the second cavity 13, since the pressure in the second cavity 13 is greater than that of the third cavity 14, then the water flow will rush to the direction where the second stopper 523 (that is, the third cavity 14) is provided, and the third cavity 14 communicates with the water outlet 12, so that the water flow will spray from the water outlet 12 After the water flow is sprayed out, the pressure in the second cavity 13 decreases, and the second stopper 523 presses against the water spray in the second cavity 13 under the elastic action of the fourth elastic member 522 place, stop the water spray action.

In another embodiment of the present invention, as shown in FIGS. 1-5 , the magnetic member 60 is disposed in the third cavity 14 , and one end of the magnetic member 60 is connected to the fourth elastic member 522 Elastic connection, the other end of the magnetic member 60 abuts against the second stopper 523 , and the sensor 70 is disposed outside the third cavity 14 to detect the displacement of the magnetic member 60 . Specifically, the magnetic part 60 of this solution is a magnet, and one end of the magnetic part 60 is elastically connected to the fourth elastic part 522, and the other end of the magnetic part 60 is in contact with the second flow stop part 523, so that the device is in the process of spraying water. Among them, the second stopper 523 will drive the displacement of the magnetic member 60, and the sensor 70 can detect that the magnetic member 60 enters and transmits a signal. When the water spray is stopped, the fourth elastic member 522 will drive the magnetic member 60 to reset, and the sensor 70 It can detect the departure of the magnetic part 60 and transmit the signal, so that the current working state (that is, whether it is in the water spraying state) can be judged by detecting the displacement of the magnetic part 60, effectively avoiding dry running or excessive conveying of the device, To realize real-time monitoring, the sensor 70 in this solution is a Hall sensor 70 .

In another embodiment of the present invention, as shown in FIGS. 1 to 5 , one end of the magnetic member 60 is provided with a hole that matches the shape of the fourth elastic member 522 and is used to abut against the fourth elastic member 522 . The first abutting groove 61 , the second abutting groove 62 matching the shape of the second stopper 523 and used to abut against the second stopper 523 is defined at the other end of the magnetic member 60 . Specifically, one end of the magnetic member 60 is provided with a first abutting groove 61 matching the shape of the fourth elastic member 522 , and the other end of the magnetic member 60 is provided with a second abutting groove 61 matching the shape of the second stopper 523 . slot 62, then when the magnetic piece 60 is in contact with the fourth elastic piece 522 and the second flow stop piece 523, it can be matched more precisely to prevent offset. The first abutting groove 61 and the second abutting groove 62 are identical in shape and are all arranged in a cylindrical shape.

In another embodiment of the present invention, as shown in FIGS. 1-5 , the magnetic member 60 is provided with a plurality of overflow holes 63 that run through both ends of the center, and the two ends of each overflow hole 63 are respectively It communicates with the first abutting groove 61 and the second abutting groove 62 . Specifically, the magnetic member 60 is provided with a plurality of overflow holes 63 running through the two ends of the center, and the two ends of the plurality of overflow holes 63 communicate with the first abutting groove 61 and the second abutting groove 62 respectively, so that the magnetic When the part 60 is in action, the water flow can pass through a plurality of overflow holes 63, so that the magnetic part 60 will not generate resistance to the water flow, so as to prevent the magnetic part 60 from affecting the pressurized water spray performance of the device.

In another embodiment of the present invention, as shown in FIGS. 1-5 , the magnetic member 60 is arranged in a ring shape or a cylindrical shape. Specifically, the magnetic member 60 is arranged in a ring shape or a cylindrical shape, so as to avoid scratching the inner wall of the third cavity 14 .

In another embodiment of the present invention, as shown in FIGS. 6-10 , the magnetic member 60 is disposed in the third cavity 14 , and the magnetic member 60 is engaged with the second stopper 523 . or the magnetic member is disposed in the third cavity 14 , and the magnetic member 60 is fixedly connected to the second stop member 523 . Specifically, the magnetic part 60 of this solution is a magnet, and one end of the magnetic part 60 is elastically connected to the fourth elastic part 522, and the magnetic part 60 is clamped on the second flow stop part 523, then the magnetic part 60 and the second flow stop part The connection between 523 is more firm. During the water spraying process of the device, the second stopper 523 will drive the displacement of the magnetic member 60, so that the magnetic member 60 can be more sensitive when moving, and the sensor 70 can accurately detect the magnetic Part 60 enters and transmits a signal, and when the water spraying is stopped, the fourth elastic part 522 will drive the magnetic part 60 to reset. Judging the current working state (that is, whether it is in the water spraying state), effectively avoiding dry running or excessive conveying of the device, and realizing real-time monitoring, the sensor 70 in this solution is a Hall sensor 70;

Alternatively, the magnetic part of another solution is arranged in the third cavity 14, and the magnetic part 60 and the second stopper 523 are fixedly connected by secondary molding to form an integrated structure, then the magnetic part 60 and the second stopper 523 The connection between the parts 523 is more firm. During the water spraying process of the device, the second flow stop part 523 will drive the displacement of the magnetic part 60, so that the magnetic part 60 can be more sensitive when moving, and the sensor 70 can accurately detect The magnetic piece 60 enters and transmits the signal.

In another embodiment of the present invention, as shown in FIGS. 6-10 , the second stopper 523 is provided with a plurality of clamping blocks 5231 for clamping one end of the magnetic component 60 , and a plurality of clamping blocks 5231 each The clamping piece 5232 is used to clamp the other end of the magnetic component 60 , and the magnetic component 60 is located between each clamping block 5231 and each clamping piece 5232 . Specifically, the outside of the second stopper 523 is provided with four engaging blocks 5231 for engaging the left end of the magnetic element 60, and four engaging pieces 5232 for engaging the right end of the magnetic element 60. The clamping block 5231 and the four clamping pieces 5232 are integrally formed with the second stopper 523, and the magnetic member 60 is clamped between the four clamping blocks 5231 and the four clamping pieces 5232, and is just connected by the four

clamping pieces

5231 and 5232. The block 5231 and the four clips 5232 are fixed to prevent deviation, so that when the second stopper 523 moves, it can drive the magnetic member 60 to move synchronously, ensuring the accuracy of the device.

In another embodiment of the present invention, as shown in FIGS. 6-10 , the magnetic member 60 is provided with a locking groove 601 for locking the second stopper 523 . Specifically, the magnetic member 60 is provided with a clamping groove 601 that runs through both ends of its center, and the two ends of the clamping groove 601 communicate with the first abutting groove 61 and the second abutting groove 62 respectively, so as to avoid blocking the passage of water. In addition, the magnetic part 60 can be sleeved on the outside of the second flow stop part 523 through the opening slot 601 , realizing the integration of the magnetic part 60 and the second flow stop part 523 .

In another embodiment of the present invention, as shown in FIGS. 6-10 , the magnetic component 60 is sheathed on the outside of the second stopper 523 . Specifically, the magnetic part 60 of this device is sleeved on the outside of the second stopper 523, and the sensor 70 can accurately detect the magnetic part 60 to prevent the signal from being blocked. In this device, the magnetic part 60 and the second stopper 523 The integration between the magnetic parts 60 and the second stoppers 523 can also be made through integral molding to realize the integration.

In another embodiment of the present invention, as shown in FIGS. 6-10 , the second stopper 523 is a one-way valve. Specifically, the second stopper 523 is a one-way valve, and the second stopper 523 is provided with a plurality of through grooves 5233, and the two ends of the plurality of through grooves 5233 are connected with the first abutting groove 61 and the second contact groove 61 respectively. The abutment groove 62 communicates, which can avoid blocking the passage of water.

In another embodiment of the present invention, as shown in FIGS. 6-10 , the magnetic member 60 is in the shape or arrangement of a ring. Specifically, the magnetic member 60 is arranged in the shape of a ring, matching with the outer shape of the second flow stop member 523 , so as to facilitate clamping installation.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims

An electromagnetic pump with a flow monitoring function, characterized in that: comprising:

A pipe body, the interior of the pipe body is hollow, and the two ends of the pipe body are respectively provided with a water inlet and a water outlet. The water outlet outputs water flow;

a piston, the piston is movably arranged in the tube body and moves back and forth along both ends of the tube body for sucking in or outputting water flow;

a first elastic member and a second elastic member, the first elastic member and the second elastic member are respectively arranged at both ends of the piston and are used to reset the piston;

a coil, the coil is sleeved on the outside of the tube, and is used to control the piston to move back and forth along the two ends of the tube;

A first flow-stopping assembly and a second flow-stopping assembly, the first flow-stopping assembly and the second flow-stopping assembly are sequentially arranged between the piston and the water outlet and both are used to prevent backflow of water flow;

A magnetic part, the magnetic part is arranged in the pipe body and arranged in a direction close to the water outlet;

A sensor, which is arranged outside the tube and arranged in a direction close to the water outlet, is used to detect the displacement of the magnetic member and transmit the signal to the control system of the electrical appliance.
The electromagnetic pump with flow monitoring function according to claim 1, characterized in that: the first cavity for installing the piston, the second cavity for installing the first stop assembly and The third cavity where the second stopper assembly is installed; the water inlet, the first cavity, the second cavity, the third cavity and the water outlet communicate with each other.
The electromagnetic pump with flow monitoring function according to claim 2, characterized in that: the piston is movably arranged in the first cavity and divides the first cavity into a first left cavity and a first left cavity. Right cavity; the first elastic member is arranged in the first left cavity and abuts against the left end of the piston to drive the piston to return to the right, and the second elastic member is arranged in the first In the right cavity and abut against the right end of the piston to drive the piston to return to the left.
The electromagnetic pump with flow monitoring function according to claim 3, characterized in that: the piston is provided with a pressure relief chamber running through both ends thereof, and the two ends of the pressure relief chamber are respectively connected to the first left cavity It communicates with the first right cavity, and at least one pressure relief hole runs through the other end of the piston, one end of the pressure relief hole communicates with the first left cavity, and the pressure relief hole The other end communicates with the first right cavity.
The electromagnetic pump with flow monitoring function according to claim 2, characterized in that: the first stopper assembly includes a third elastic member, a first stopper and a sealing member; the third elastic member and the The sealing elements are all arranged in the second cavity, one end of the third elastic element is in contact with the inner wall of the second cavity, and the other end of the third elastic element is in contact with the first stop element. elastic connection at one end.
The electromagnetic pump with flow monitoring function according to claim 2, characterized in that: the second flow stop assembly includes a fastener, a fourth elastic member and a second flow stop member; the fastener is arranged on the In the third cavity, one end of the fourth elastic member abuts against the fastener, the other end of the fourth elastic member is elastically connected to one end of the second stopper, and the second The other end of the stopper is movably connected with the second cavity.
The electromagnetic pump with flow monitoring function according to claim 6, characterized in that: the magnetic member is arranged in the third cavity, and one end of the magnetic member is elastically connected to the fourth elastic member, The other end of the magnetic part abuts against the second stopper, and the sensor is arranged outside the third cavity to detect the displacement of the magnetic part.
The electromagnetic pump with flow monitoring function according to claim 7, characterized in that: one end of the magnetic part is provided with a first part that matches the shape of the fourth elastic part and is used to abut against the fourth elastic part. The abutting groove, the other end of the magnetic element is provided with a second abutting groove which matches the shape of the second flow-stopping piece and is used to abut against the second flow-stopping piece.
According to the electromagnetic pump with flow monitoring function according to claim 8, it is characterized in that: said magnetic member is provided with a number of overflow holes that run through both ends of the center, and the two ends of each overflow hole are respectively connected to the The first abutting groove communicates with the second abutting groove.
The electromagnetic pump with flow monitoring function according to claim 6, characterized in that: the magnetic part is arranged in the third cavity, and the magnetic part is snap fit with the second stopper ; or the magnetic part is arranged in the third cavity, and the magnetic part is fixedly connected with the second stopper.