A magnetic pump

Abstract

The present invention provides a magnetic pump, which belongs to the technical field of magnetic pumps. It comprises a pump body mounting part, wherein a sealing protection part is installed inside the pump body mounting part, and the sealing protection part is used for corrosion prevention; a magnetic coupling part is installed inside the pump body mounting part; the magnetic coupling part is used for magnetic coupling of the sealing protection part; two demagnetization detection parts are installed on the magnetic coupling part; the demagnetization detection parts are used to test the coupling connectivity; a pressure control part is installed on the sealing protection part; and a pressure detection part is installed on the sealing protection part. The present invention can realize automatic detection of the magnetic coupling connection quality as the pump is driven by setting a demagnetization detection part. When the strength of the magnetic coupling connection is reduced, the drive motor can be directly controlled to cut off the power supply, which can avoid the drive motor from idling or intermittent rotation, causing overheating; so as to solve the problem that the existing magnetic pump is not convenient for automatic detection of overload or demagnetization, and is not convenient for automatic control of pressure supply and leakage prevention.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic pumps, in particular to a magnetic pump. Background Art

[0002] A magnetic pump is a fluid conveying device that achieves contactless power transmission through magnetic transmission. It mainly uses an electric motor to drive an external magnet to directly use magnetic force outside the pump casing to control the rotation of the impeller. Its core feature is to replace traditional mechanical seals with static seals, effectively solving the problem of medium leakage. It is especially suitable for scenarios where flammable, explosive, toxic or highly corrosive media are conveyed.

[0003] The current magnetic pump is not convenient for automatically detecting overload or demagnetization. Magnetic coupling of the magnetic pump is a basic requirement to ensure the operation of the magnetic pump. Once demagnetization occurs, it is easy to cause problems such as idling, further causing hidden dangers such as motor overheating, and also affecting the conveying efficiency. Although the magnetic pump is not prone to leakage, the internal rotating shaft is still prone to corrosion, and the internal sealing is poor. It is also not convenient for automatic control of pressure and leakage prevention, which can easily affect the service life. Therefore, the present application provides a magnetic pump to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a magnetic pump to solve the problem that the existing magnetic pumps are not convenient for automatic detection of overload or demagnetization and are not convenient for automatic control of pressure supply and leakage prevention.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A magnetic pump comprises a pump body mounting part, a sealing protection part is installed inside the pump body mounting part, and the sealing protection part is used for corrosion protection; a magnetic coupling part is installed inside the pump body mounting part; the magnetic coupling part is used to magnetically couple the sealing protection part; two demagnetization detection parts are installed on the magnetic coupling part; the demagnetization detection parts are used to test the coupling connectivity; a pressure control part is installed on the sealing protection part; a pressure detection part is installed on the sealing protection part; the pressure control part is used to prevent air pressure leakage of the sealing protection part; the pump body mounting part comprises: a driving motor and a connecting tube, the end of the driving motor is fixed with a connecting tube by a thread; the output shaft of the driving motor is located in the connecting tube; and an air vent is provided on the connecting tube.

[0007] Optionally, the pump body mounting part also includes an isolation sleeve fixedly connected to the connecting cylinder; the isolation sleeve is non-magnetic; a pump casing is fixedly mounted on the isolation sleeve; the pump casing is fixedly mounted on the connecting cylinder by bolts, and the bolts on the pump casing pass through the isolation sleeve; a water inlet and a water outlet are provided on the pump casing; the isolation sleeve is located on the inner side of the connecting cylinder.

[0008] Optionally, the sealing protection component includes a rotating shaft fixedly mounted inside the isolation sleeve; two bearings are fixedly mounted on the rotating shaft, and the outer rings of the two bearings on the rotating shaft are mounted with inner magnets, and a circle of permanent magnets is provided inside the inner magnets; one end of the rotating shaft close to the exhaust pipe is provided with a through hole for ventilation; a row of sealing rings is fixedly mounted on the outer wall of the inner magnet; the outer sides of a row of the sealing rings are respectively attached to the inner wall of the isolation sleeve; an impeller is fixedly mounted on the end of the inner magnet; the impeller is located inside the pump casing; two detection magnets are fixedly mounted on the inner magnet; the two detection magnets are symmetrically arranged; the sealing ring is used to seal and protect the two bearings on the outside of the rotating shaft.

[0009] Optionally, the magnetic coupling component includes an outer magnet fixedly mounted on the output shaft of the drive motor; the outer magnet is located outside the isolation sleeve; a circle of permanent magnets is provided on the outer magnet; the circle of permanent magnets on the outer magnet is used to magnetically attract a circle of permanent magnets inside the inner magnet; an extrusion ball head is fixedly mounted on the inner side of the outer magnet; the end of the extrusion ball head is an arc-shaped structure.

[0010] Optionally, the demagnetization detection component includes a detection shell fixedly installed on the end of the external magnetic steel; a magnetic block is slidably inserted into the inside of the detection shell; the magnetic block is aligned with the detection magnet; a tension spring is sleeved inside the detection shell; both ends of the tension spring inside the detection shell are fixedly connected between the magnetic block and the detection shell; and a gap is provided between the end of the magnetic block and the isolation sleeve.

[0011] Optionally, the demagnetization detection component further includes a demagnetization switch fixedly mounted inside the detection shell; the demagnetization switch is located above the magnetic attraction block; the demagnetization switch is electrically connected to the drive motor, and the drive motor has its own switch.

[0012] Optionally, when a circle of permanent magnets on the outer magnetic steel magnetically attracts a circle of permanent magnets inside the inner magnetic steel, the detection magnet maintains magnetic attraction to the magnetic attraction block.

[0013] Optionally, the pressure control component includes a pressure piston cylinder fixedly mounted on the isolation sleeve near the extrusion ball head; an exhaust pipe is fixedly mounted on the bottom of the pressure piston cylinder; the end of the exhaust pipe is fixedly mounted on the isolation sleeve; the end of the exhaust pipe is connected to the through hole on the rotating shaft; a one-way valve is provided on the exhaust pipe; an intake pipe is fixedly mounted on the pressure piston cylinder, and a one-way valve is provided on the intake pipe.

[0014] Optionally, the pressure control component also includes a piston shaft slidably sleeved on the pressure piston cylinder; the end of the piston shaft is an arc-shaped structure; the end of the piston shaft is aligned with the extrusion ball head; the tail of the piston shaft is connected to a spring, and the spring at the tail of the piston shaft is located inside the pressure piston cylinder; an electromagnet is fixedly mounted on the isolation sleeve; the electromagnet is aligned with the piston shaft; the electromagnet is used to magnetically attract the piston shaft; the piston shaft is used to inject air between the inside of the isolation sleeve and the inner magnetic steel; there is original air pressure between the inside of the isolation sleeve and the inner magnetic steel.

[0015] Optionally, the pressure detection component includes a detection sleeve fixedly mounted on the isolation sleeve; an extrusion switch is fixedly mounted inside the detection sleeve; a piston column is slidably sleeved on the detection sleeve; the end of the piston column is squeezed and fitted with the extrusion switch, and the extrusion switch is electrically connected to the electromagnet.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting a magnetic coupling part in conjunction with a sealing protection part, and using the two bearings on the rotating shaft to connect the internal magnetic steel, dry grinding of the internal magnetic steel is avoided, and the rotation accuracy is also higher, which is more suitable for long-term use and can improve the smoothness of rotation. At the same time, this structure uses a row of the sealing rings to improve the sealing inside the pump casing, further prevent corrosion of the two bearings on the outside of the rotating shaft, and can improve the service life of this structure.

[0018] By setting up a demagnetization detection component, the quality of the magnetic coupling connection can be automatically detected as the pump is driven, which can avoid the situation where partial demagnetization goes undetected due to factors such as long-term high-temperature transportation. When the strength of the magnetic coupling connection is reduced, the drive motor can be directly controlled to cut off power, which can avoid the drive motor from idling or intermittent rotation, causing overheating and other problems. It can directly prompt the staff to carry out maintenance, reduce safety hazards, ensure the service life of the drive motor, and avoid the problem of poor magnetic coupling strength affecting the pumping pressure and pumping efficiency.

[0019] By setting up a pressure detection component in conjunction with a pressure control component, automatic control and detection of the internal sealing of this structure can be achieved. At the same time, this structure can automatically control the air pressure compensation work when leakage occurs, and can maintain continuous pressurization protection. It can continuously supply air pressure to prevent corrosive liquids from seeping into the inside of the isolation sleeve and between the inner magnetic steel, which can further improve the sealing quality of this structure. At the same time, this structure can perform real-time compensation through air pressure control, and can drive pressure during the process of driving the motor to drive the pump, which can ensure timely pressure supply and simple and direct control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the magnetic pump;

[0022] Figure 2 This is a cross-sectional view of the internal structure of the magnetic pump;

[0023] Figure 3 It is a cross-sectional view of the local structure of the magnetic pump;

[0024] Figure 4 This is a three-dimensional enlarged structural diagram of the pump body mounting parts;

[0025] Figure 5 It is a schematic diagram of the three-dimensional enlarged structure of the magnetic coupling component;

[0026] Figure 6 This is a schematic diagram of the three-dimensional enlarged structure of the pump casing;

[0027] Figure 7 It is a schematic diagram of the three-dimensional enlarged structure of the sealing protection component;

[0028] Figure 8 It is a schematic diagram of the three-dimensional enlarged structure of the sealing protection component;

[0029] Figure 9 for Figure 2 A magnified view of the structure of the middle B region;

[0030] Figure 10 for Figure 8 A magnified view of the structure of the middle D region;

[0031] Figure 11 for Figure 2 A magnified view of the structure of region E in the middle.

[0032] Reference numerals:

[0033] 1. Pump body mounting parts; 101. Drive motor; 102. Connecting cylinder; 103. Isolation sleeve; 104. Pump casing; 2. Sealing protection parts; 201. Rotating shaft; 202. Inner magnet; 203. Sealing ring; 204. Impeller; 205. Detection magnet; 3. Magnetic coupling parts; 301. Outer magnet; 302. Squeeze ball head; 4. Demagnetization detection parts; 401. Detection casing; 402. Demagnetization switch; 403. Magnetic block; 5. Pressure control parts; 501. Pressure piston cylinder; 502. Exhaust pipe; 503. Intake pipe; 5. Pressure control parts; 504. Piston shaft; 505. Electromagnet; 6. Pressure detection parts; 601. Detection sleeve; 602. Squeeze switch; 603. Piston column.

[0034] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0035] The following describes a magnetic pump provided by the present invention in detail with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are optimal and preferred embodiments, and those skilled in the art may employ alternative implementations for some known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0036] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0037] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0038] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0039] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0040] like Figures 1 to 11 As shown, an embodiment of the present invention provides a magnetic pump, including a pump body mounting part 1, a sealing protection part 2 is installed inside the pump body mounting part 1, and the sealing protection part 2 is used for corrosion protection; a magnetic coupling part 3 is installed inside the pump body mounting part 1; the magnetic coupling part 3 is used to magnetically couple the sealing protection part 2; two demagnetization detection parts 4 are installed on the magnetic coupling part 3; the demagnetization detection parts 4 are used to test the coupling connectivity; a pressure control part 5 is installed on the sealing protection part 2; a pressure detection part 6 is installed on the sealing protection part 2; the pressure control part 5 is used to prevent the sealing protection part 2 from air pressure leakage; the pump body mounting part 1 includes: a driving motor 101 and a connecting tube 102, the end of the driving motor 101 is fixedly installed with the connecting tube 102 by threads; the output shaft of the driving motor 101 is located in the connecting tube 102; and the connecting tube 102 is provided with an air vent.

[0041] like Figures 3 to 8As shown, the pump body mounting member 1 also includes an isolation sleeve 103 fixedly sleeved on the connecting cylinder 102; the isolation sleeve 103 is non-magnetic; a pump housing 104 is fixedly mounted on the isolation sleeve 103; the pump housing 104 is fixedly mounted on the connecting cylinder 102 by bolts, and the bolts on the pump housing 104 pass through the isolation sleeve 103; a water inlet and a water outlet are provided on the pump housing 104; the isolation sleeve 103 is located on the inner side of the connecting cylinder 102; the sealing protection member 2 includes a rotating shaft 201 fixedly mounted inside the isolation sleeve 103; the rotating shaft 201 There are two bearings fixedly sleeved on the upper part, and the outer rings of the two bearings on the rotating shaft 201 are sleeved with inner magnetic steel 202, and a circle of permanent magnets is arranged inside the inner magnetic steel 202; the end of the rotating shaft 201 close to the exhaust pipe 502 is provided with a through hole for ventilation; a row of sealing rings 203 are fixedly sleeved on the outer wall of the inner magnetic steel 202; a row of sealing rings 203 are respectively attached to the inner wall of the isolation sleeve 103; an impeller 204 is fixedly installed on the end of the inner magnetic steel 202; the impeller 204 is located inside the pump housing 104; a Two detection magnets 205; two detection magnets 205 are symmetrically arranged; the sealing ring 203 is used to seal and protect the two bearings on the rotating shaft 201; the magnetic coupling member 3 includes an outer magnet 301 fixedly mounted on the output shaft of the drive motor 101; the outer magnet 301 is located outside the isolation sleeve 103; a circle of permanent magnets is provided on the outer magnet 301; the circle of permanent magnets on the outer magnet 301 is used to magnetically attract the circle of permanent magnets inside the inner magnet 202; an extrusion ball head 302 is fixedly mounted on the inner side of the outer magnet 301; the extrusion The end of the ball head 302 is an arc-shaped structure, and a magnetic coupling part 3 is used in conjunction with a sealing protection part 2. The two bearings on the rotating shaft 201 are used to connect the inner magnetic steel 202, which avoids dry grinding of the inner magnetic steel 202. At the same time, the rotation accuracy is also higher, which is more suitable for long-term use and can improve the smoothness of rotation. At the same time, this structure uses a row of sealing rings 203 to improve the sealing inside the pump housing 104, further prevent the two bearings on the rotating shaft 201 from corrosion, and can increase the service life of this structure, making the structure more reasonable.

[0042] like Figures 3 to 9As shown, the demagnetization detection component 4 includes a detection shell 401 fixedly mounted on the end of the outer magnetic steel 301; a magnetic block 403 is slidably inserted inside the detection shell 401; the magnetic block 403 is aligned with the detection magnet 205; a tension spring is sleeved inside the detection shell 401; both ends of the tension spring inside the detection shell 401 are fixedly connected between the magnetic block 403 and the detection shell 401; a gap is provided between the end of the magnetic block 403 and the isolation sleeve 103; the demagnetization detection component 4 also includes a demagnetization switch 402 fixedly mounted inside the detection shell 401; the demagnetization switch 402 is located above the magnetic block 403; the demagnetization switch 402 is electrically connected to the drive motor 101, and the drive motor 101 has its own switch; when a circle of permanent magnets on the outer magnetic steel 301 magnetically attracts a circle of permanent magnets inside the inner magnetic steel 202, the detection magnet 205 maintains the magnetic attraction of the magnetic block 403, and the demagnetization detection component 4 can be used to realize automatic detection of magnetic coupling connection quality as the pump is driven. The amount can avoid the situation where partial demagnetization goes undetected under factors such as long-term high-temperature transportation. When the magnetic coupling connection strength is reduced, the drive motor 101 can be directly controlled to be powered off, which can avoid the drive motor 101 from idling or intermittent rotation, causing overheating and other problems. The staff can be directly prompted to carry out maintenance, reducing safety hazards, and ensuring the service life of the drive motor 101. At the same time, it can avoid the problem of affecting the pumping pressure and pumping efficiency when the magnetic coupling strength is poor, avoid affecting the pumping volume accuracy, and have a more reasonable structure. Once the magnetic coupling strength is poor, the magnetic block 403 can be misaligned with the detection magnet 205. At this time, the detection magnet 205 no longer magnetizes the magnetic block 403. Under the pull of the tension spring on the magnetic block 403, the magnetic block 403 can retract and squeeze the demagnetization switch 402. At this time, the demagnetization switch 402 can control the drive motor 101 to power off, stop continuing the rotation drive, and perform protection work.

[0043] like Figures 7 to 11As shown, the pressure control component 5 includes a pressure piston cylinder 501 fixedly mounted on the isolation sleeve 103 near the side of the extrusion ball head 302; an exhaust pipe 502 is fixedly mounted on the bottom of the pressure piston cylinder 501; the end of the exhaust pipe 502 is fixedly mounted on the isolation sleeve 103; the end of the exhaust pipe 502 is connected to the through hole on the rotating shaft 201; a one-way valve is provided on the exhaust pipe 502; an intake pipe 503 is fixedly mounted on the pressure piston cylinder 501, and a one-way valve is provided on the intake pipe 503; the pressure control component 5 also includes a piston shaft 504 slidably sleeved on the pressure piston cylinder 501; the end of the piston shaft 504 is an arc-shaped structure; the end of the piston shaft 504 is aligned with the extrusion ball head 302; the tail of the piston shaft 504 is connected There is a spring, and the spring at the tail of the piston shaft 504 is located inside the pressure-feeding piston cylinder 501; an electromagnet 505 is fixedly installed on the isolation sleeve 103; the electromagnet 505 is externally connected to the mains power supply and the switch, and the magnetic force disappears when the electromagnet 505 is powered off, and the electromagnet 505 is aligned with the piston shaft 504; the electromagnet 505 is used to magnetically attract the piston shaft 504; the piston shaft 504 is used to inject air between the inside of the isolation sleeve 103 and the inner magnetic steel 202; there is original air pressure between the inside of the isolation sleeve 103 and the inner magnetic steel 202; the pressure detection part 6 includes a detection sleeve 601 fixedly installed on the isolation sleeve 103; an extrusion switch 602 is fixedly installed inside the detection sleeve 601; a sliding sleeve is connected to the detection sleeve 601 There is a piston column 603; the end of the piston column 603 is squeezed and fitted with the squeezing switch 602, and the squeezing switch 602 is electrically connected to the electromagnet 505. The pressure detection component 6 is used in conjunction with the pressure control component 5 to realize automatic control and detection of the internal sealing of this structure. At the same time, this structure can automatically control the air pressure compensation work when leakage occurs, and can maintain continuous pressurization protection. It can continuously supply air pressure to prevent corrosive liquid from penetrating between the inner side of the isolation sleeve 103 and the inner magnetic steel 202, which can further improve the sealing quality of this structure. At the same time, this structure can compensate in real time through air pressure control, and can drive the pressure during the pumping process driven by the drive motor 101, which can ensure The pressure is applied in time and the control is simple and direct. When the pressure between the inner side of the isolation sleeve 103 and the inner magnetic steel 202 is reduced, the pressure acting on the piston column 603 is reduced, and the piston column 603 no longer squeezes the squeezing switch 602. At this time, the squeezing switch 602 can control the electromagnet 505 to cut off the power. At this time, the piston shaft 504 can be extended under the squeezing of the tail spring. At this time, the outer magnetic steel 301 rotates in real time to drive the squeezing ball head 302 to touch the squeezing piston column 603, and then extend again under the squeezing of the spring in the piston column 603. Then the squeezing ball head 302 rotates one circle and squeezes again, thereby realizing the one-way circulation supply of air pressure, ensuring the anti-leakage effect, and better ensuring the corrosion resistance quality.

[0044] The working principle provided by the present invention is that, first, the driving motor 101 can drive a circle of permanent magnets on the outer magnetic steel 301 to magnetically couple with a circle of permanent magnets inside the inner magnetic steel 202. When the inner magnetic steel 202 is driven to rotate, the impeller 204 can be driven to rotate to realize the pumping operation. Water is introduced through the water inlet pipe on the pump housing 104 and water is discharged through the water outlet pipe on the pump housing 104. When the circle of permanent magnets on the outer magnetic steel 301 is magnetically coupled with the circle of permanent magnets inside the inner magnetic steel 202, once the magnetic coupling strength is poor, the outer magnetic steel 301 The circle of permanent magnets on the inner magnetic steel 202 is magnetically coupled to the circle of permanent magnets inside the inner magnetic steel 202, and the magnetic positioning is no longer maintained. At this time, the inner magnetic steel 202 cannot rotate in time with the outer magnetic steel 301. At this time, the magnetic block 403 can be misaligned with the detection magnet 205. At this time, the detection magnet 205 no longer magnetically attracts the magnetic block 403. Under the pull of the tension spring on the magnetic block 403, the magnetic block 403 can retract and squeeze the demagnetization switch 402. At this time, the demagnetization switch 402 can control the drive motor 101 to cut off the power and stop the rotation drive to perform protection work;

[0045] When the pressure between the inner side of the isolation sleeve 103 and the inner magnetic steel 202 decreases, the pressure acting on the piston rod 603 decreases, and the piston rod 603 no longer squeezes the squeeze switch 602. At this time, the squeeze switch 602 can control the electromagnet 505 to cut off the power. At this time, the piston shaft 504 can be extended under the pressure of the tail spring. At this time, the outer magnetic steel 301 rotates in real time, which can drive the squeezing ball head 302 to touch the piston shaft 504. The squeezing ball head 302 rotates one circle and squeezes again. As the piston shaft 504 4 is squeezed, and the air pressure in the pressure piston cylinder 501 is introduced into the space between the inner side of the isolation sleeve 103 and the inner magnetic steel 202 through the exhaust pipe 502 to compensate for the air pressure. At the same time, when the piston shaft 504 moves outward and resets, the one-way valve on the exhaust pipe 502 remains closed, and the one-way valve on the intake pipe 503 can be opened to inhale, thereby realizing the one-way circulation supply of air pressure, ensuring the anti-leakage effect and better ensuring the corrosion resistance quality. At the same time, when the squeezing ball head 302 touches the squeezing piston shaft 504, it will produce a knock in the opposite direction to provide a prompt.

[0046] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A magnetic pump, comprising a pump body mounting member, wherein a sealing protection member is installed inside the pump body mounting member, characterized in that: The sealing protection part is used for corrosion protection; a magnetic coupling part is installed inside the pump body mounting part; the magnetic coupling part is used for magnetic coupling of the sealing protection part; Two demagnetization detection components are installed on the magnetic coupling component; the demagnetization detection components are used to test the coupling connectivity; A pressure control component is installed on the sealing protection component; a pressure detection component is installed on the sealing protection component; the pressure control component is used to prevent the sealing protection component from air pressure leakage; The pump body mounting member includes: a driving motor and a coupling cylinder, wherein the end of the driving motor is fixedly mounted with the coupling cylinder by means of a thread; the output shaft of the driving motor is located in the coupling cylinder; and an air vent is provided on the coupling cylinder; The pump body mounting member also includes an isolation sleeve fixedly sleeved on the coupling cylinder; the isolation sleeve is non-magnetic; a pump casing is fixedly mounted on the isolation sleeve; the pump casing is fixedly mounted on the coupling cylinder by bolts, and the bolts on the pump casing pass through the isolation sleeve; the pump casing is provided with a water inlet and a water outlet; the isolation sleeve is located inside the coupling cylinder; The sealing protection component includes a rotating shaft fixedly mounted inside the isolation sleeve; two bearings are fixedly sleeved on the rotating shaft, and the outer rings of the two bearings on the rotating shaft are sleeved with inner magnetic steel, and a circle of permanent magnets is provided inside the inner magnetic steel; a row of sealing rings are fixedly sleeved on the outer wall of the inner magnetic steel; the outer sides of a row of sealing rings are respectively attached to the inner wall of the isolation sleeve; an impeller is fixedly mounted on the end of the inner magnetic steel; the impeller is located inside the pump casing; two detection magnets are fixedly mounted on the inner magnetic steel; the two detection magnets are symmetrically arranged; the sealing ring is used to seal and protect the two bearings on the rotating shaft; The magnetic coupling component includes an outer magnet fixedly mounted on the output shaft of the drive motor; the outer magnet is located outside the isolation sleeve; a circle of permanent magnets is provided on the outer magnet; the circle of permanent magnets on the outer magnet is used to magnetically attract the circle of permanent magnets inside the inner magnet; an extrusion ball head is fixedly mounted on the inner side of the outer magnet; the end of the extrusion ball head is an arc-shaped structure.

2. The magnetic pump according to claim 1, characterized in that The demagnetization detection component includes a detection shell fixedly installed on the end of the external magnetic steel; a magnetic block is slidably inserted into the inside of the detection shell; the magnetic block is aligned with the detection magnet; a tension spring is sleeved inside the detection shell; both ends of the tension spring inside the detection shell are fixedly connected between the magnetic block and the detection shell; a gap is provided between the end of the magnetic block and the isolation sleeve.

3. The magnetic pump according to claim 2, characterized in that The demagnetization detection component further includes a demagnetization switch fixedly installed inside the detection shell; the demagnetization switch is located above the magnetic attraction block; and the demagnetization switch is electrically connected to the drive motor.

4. The magnetic pump according to claim 3, characterized in that When a circle of permanent magnets on the outer magnetic steel magnetically attracts a circle of permanent magnets inside the inner magnetic steel, the detection magnet keeps magnetically attracting the magnetic attraction block.

5. The magnetic pump according to claim 1, characterized in that The pressure control component includes a pressure piston cylinder fixedly mounted on the isolation sleeve near the extrusion ball head; an exhaust pipe is fixedly mounted on the bottom of the pressure piston cylinder; the end of the exhaust pipe is fixedly mounted on the isolation sleeve; the end of the exhaust pipe is connected to the through hole on the rotating shaft; a one-way valve is provided on the exhaust pipe; an intake pipe is fixedly mounted on the pressure piston cylinder, and a one-way valve is provided on the intake pipe; a through hole for ventilation is provided on the end of the rotating shaft close to the exhaust pipe.

6. The magnetic pump according to claim 5, characterized in that The pressure control component also includes a piston shaft that is slidably sleeved on the pressure piston cylinder; the end of the piston shaft is an arc-shaped structure; the end of the piston shaft is aligned with the extrusion ball head; the tail of the piston shaft is connected to a spring, and the spring at the tail of the piston shaft is located inside the pressure piston cylinder; an electromagnet is fixedly installed on the isolation sleeve; the electromagnet is aligned with the piston shaft; the electromagnet is used to magnetically attract the piston shaft; the piston shaft is used to inject air between the inside of the isolation sleeve and the inner magnetic steel.

7. The magnetic pump according to claim 6, characterized in that The pressure detection component includes a detection sleeve fixedly installed on the isolation sleeve; a squeeze switch is fixedly installed inside the detection sleeve; a piston column is slidably sleeved on the detection sleeve; the end of the piston column is squeezed and fitted with the squeeze switch, and the squeeze switch is electrically connected to the electromagnet.

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