CN116857199A

CN116857199A - Plastic magnetic pump

Info

Publication number: CN116857199A
Application number: CN202311127454.0A
Authority: CN
Inventors: 韦宽宏
Original assignee: Yancheng Jingzhao Machine Pump Manufacturing Co ltd
Current assignee: Yancheng Jingzhao Machine Pump Manufacturing Co ltd
Priority date: 2023-09-04
Filing date: 2023-09-04
Publication date: 2023-10-10
Anticipated expiration: 2043-09-04
Also published as: CN116857199B

Abstract

The invention belongs to the technical field of magnetic pumps, and particularly discloses a plastic magnetic pump which comprises a pump body, wherein an impeller is arranged in the pump body, the impeller comprises fan blades, a fixing plate and a fixing shaft, the fixing plate is fixedly sleeved on the fixing shaft, the fan blades are fixedly arranged on the fixing plate, one end of the fixing shaft, which is far away from the fan blades, is fixedly connected with an inner magnetic rotor, and the inner magnetic rotor is positioned outside the pump body. Through being equipped with the feed liquor subassembly, at the in-process that the pump body used, along with the rotation of impeller, liquid medium can enter into the catheter inside through the inlet opening on the catheter under the effect of impeller, and the liquid medium that enters into in the catheter later can enter into corresponding intake flume through a plurality of outlet pipes to finally enter into between spacer bush and the interior magnetic rotor through the connecting hole on the intake flume, thereby accelerate the velocity of flow of liquid medium between spacer bush and the interior magnetic rotor, and then improve the cooling effect of liquid medium to the spacer bush.

Description

Plastic magnetic pump

Technical Field

The invention belongs to the technical field of magnetic pumps, and particularly relates to a plastic magnetic pump.

Background

The magnetic pump (also called as magnetic drive pump) mainly comprises a pump head, a magnetic driver (magnetic cylinder), an electric motor, a base and other parts. The magnetic driver of the magnetic pump consists of an outer magnetic rotor, an inner magnetic rotor and a non-magnetic isolating sleeve. When the motor drives the outer magnetic rotor to rotate through the coupler, the magnetic field can penetrate through the air gap and the nonmagnetic substance isolation sleeve to drive the inner magnetic rotor connected with the impeller to synchronously rotate, so that the contactless synchronous transmission of power is realized, and the dynamic sealing structure easy to leak is converted into a static sealing structure with zero leakage. Because the pump shaft and the inner magnetic rotor are completely sealed by the pump body and the isolation sleeve, the problems of running, overflowing, dripping and leaking are thoroughly solved.

However, when the existing magnetic pump is used, when the outer magnetic rotor drives the inner magnetic rotor to synchronously rotate, a rotating magnetic field is generated between the inner magnetic rotor and the outer magnetic rotor, and the isolating sleeve positioned between the inner magnetic rotor and the outer magnetic rotor performs a magnetic line cutting motion relative to the rotating magnetic field, so that induced current, also called magnetic vortex, is generated on the surface of the isolating sleeve. The eddy current can raise the temperature of the isolation sleeve, and once the temperature of the isolation sleeve is raised to exceed the highest using temperature of the permanent magnet, the use of the permanent magnet is influenced. Although the liquid medium conveyed in the existing magnetic pump can cool the isolation sleeve to a certain extent, the gap between the isolation sleeve and the inner magnetic rotor is smaller, so that the flow speed of the liquid medium between the inner magnetic rotor and the isolation sleeve is slower, and the cooling effect of the liquid medium on the isolation sleeve is poor.

Disclosure of Invention

In view of the above, the present invention provides a plastic magnetic pump to solve the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a plastics magnetic drive pump, includes the pump body, be equipped with the impeller in the pump body, the impeller includes flabellum, fixed plate and fixed axle, the fixed sleeve joint is on the fixed axle, flabellum fixed mounting is on the fixed plate, the fixed axle is kept away from the one end fixedly connected with inner magnetic rotor of flabellum, and inner magnetic rotor is located the pump body outside, the fixed axle is located the position rotation between fixed plate and the inner magnetic rotor and has cup jointed solid fixed ring, a plurality of dead levers of fixedly connected with between the outside of solid fixed ring and the pump body, the fixed axle is located the position between fixed plate and the inner magnetic rotor and has still cup jointed the feed liquor subassembly.

The outside rotation of interior magnetic rotor has cup jointed the spacer sleeve, spacer sleeve and the detachable fixed connection of pump body are in the same place, the outside rotation of spacer sleeve has cup jointed outer magnetic rotor, one side perpendicular fixedly connected with pivot that the pump body was kept away from to outer magnetic rotor, the one end that outer magnetic rotor was kept away from to the pivot is connected with the motor, detachable is connected with the outer tube between motor and the pump body, the outer tube cup joints in the outside of outer magnetic rotor, the inside fixedly connected with plectane of outer tube, the plectane rotates and cup joints in the pivot.

Further, the feed liquor subassembly includes annular catheter, the catheter is located the inside of the pump body, one side that the catheter is close to interior magnetic rotor is perpendicular fixedly connected with a plurality of outlet pipes, the outlet pipe runs through and inserts in the pump body one side that is close to the spacer sleeve, the inlet channel has been seted up to the position that spacer sleeve is relative with the outlet pipe, and the outlet pipe is pegged graft in the inlet channel, a plurality of connecting holes have been seted up in the inlet channel one side that is close to interior magnetic rotor center, a plurality of inlet holes have been seted up in the one side that the catheter was kept away from to the outlet pipe run through, the top fixedly connected with inlet tube of catheter, the inlet tube runs through and inserts at the top of the pump body, and the inlet tube is located the external part of pump and installs first valve.

Further, interior magnetic rotor is sleeve form, and interior magnetic rotor's opening is relative with the pivot, interior magnetic rotor's inboard is equipped with the connecting axle, the one end that the connecting axle is close to the fixed axle corresponds one side inner wall vertical fixation with interior magnetic rotor, the surface fixedly connected with auger blade of connecting axle, and auger blade can promote the direction that the liquid is close to the fixed axle, connecting axle and fixed axle are hollow design, the both ends of fixed axle communicate each other, and the fixed axle also communicates each other with the relative one end of connecting axle, a plurality of through-holes have been seted up in the surface penetration of connecting axle, the one end that the connecting axle was kept away from to the fixed axle is equipped with the baffle, fixedly connected with a plurality of connecting blocks between baffle and the fixed axle.

Further, the inner wall thickness of interior magnetic rotor and spacer sleeve is thickened gradually to the direction of keeping away from each other respectively, the inner wall thickness of the pump body is thickened gradually to the direction that is close to the spacer sleeve, the top of the pump body and the one side that the outer tube was kept away from to the pump body are connected with water outlet connection pipe and water inlet connection pipe respectively, and water outlet connection pipe is located the thinnest position of pump body inner wall, the bottom of the pump body is connected with the drain pipe, install the second valve on the drain pipe, and the drain pipe is also located the thinnest position of pump body inner wall.

Further, the isolation sleeve is fixedly connected with a positioning protrusion at the position opposite to the connecting shaft, and the positioning protrusion is rotationally inserted in the axle center of the corresponding end of the connecting shaft.

Further, the edge of the isolation sleeve, which is close to one end of the pump body, protrudes outwards, a sealing ring is fixedly connected to one side, which is opposite to the pump body, of the isolation sleeve, an annular sealing groove matched with the sealing ring is formed in the pump body at the corresponding position of the sealing ring, and the sealing ring is inserted into the annular sealing groove.

Further, a plurality of poking plates are annularly distributed on one side, close to the liquid guide tube, of the fixing plate, the poking plates are vertically and fixedly connected with the fixing plate, the poking plates are opposite to a water inlet hole on the liquid guide tube, a guide strip is obliquely and fixedly connected in the water inlet hole, one end, close to the positive rotation of the fixing plate, of the guide strip is located outside the water inlet hole, and the guide strip is not in contact with the poking plates.

Further, the outer surface of the inner magnetic rotor is fixedly connected with a plurality of strip-shaped protrusions, and the strip-shaped protrusions are distributed on the outer surface of the inner magnetic rotor in a ring shape.

The invention has the technical effects and advantages that:

1. according to the invention, the liquid inlet component is arranged, in the use process of the pump body, along with the rotation of the impeller, liquid medium can enter the liquid guide tube through the water inlet hole on the liquid guide tube under the action of the impeller, then the liquid medium entering the liquid guide tube can enter the corresponding water inlet grooves through the plurality of water outlet pipes, and finally the liquid medium enters the space between the isolation sleeve and the inner magnetic rotor through the connecting holes on the water inlet grooves, so that the flow velocity of the liquid medium between the isolation sleeve and the inner magnetic rotor is accelerated, and the cooling effect of the liquid medium on the isolation sleeve is improved.

2. According to the invention, the auger blade is arranged on the inner side of the inner magnetic rotor, when the inner magnetic rotor rotates, the connecting shaft and the auger blade are driven by the inner magnetic rotor to rotate together, and along with the rotation of the auger blade, the auger blade can push the liquid medium on the inner side of the inner magnetic rotor to a direction close to the fixed shaft, and along with the push of the liquid medium on the inner side of the inner magnetic rotor, the liquid medium on the inner side of the inner magnetic rotor can enter the inner side of the connecting shaft through the through hole on the connecting shaft and then the liquid medium entering the connecting shaft can flow out through the gap between the end part of the fixed shaft and the baffle plate, so that the flow speed of the liquid medium on the inner side of the inner magnetic rotor is accelerated, and the cooling effect of the liquid medium on the inner magnetic rotor and the isolation sleeve is improved.

3. According to the invention, the poking plate is arranged, when the impeller rotates, the poking plate rotates together under the drive of the impeller, so that the liquid medium in the pump body is poked continuously, meanwhile, as the poking plate is opposite to the water inlet hole of the liquid guide pipe, and the flow guide strip is arranged in the water inlet hole, when the liquid medium meets the flow guide strip in the water inlet hole under poking of the poking plate, the liquid medium rapidly enters the liquid guide pipe under the action of the flow guide strip, then the liquid medium entering the liquid guide pipe can enter the corresponding water inlet groove through the plurality of water outlet pipes, and finally enters the space between the isolation sleeve and the inner magnetic rotor through the connecting holes on the water inlet groove, so that the flow velocity of the liquid medium between the isolation sleeve and the inner magnetic rotor is accelerated, and the cooling effect of the isolation sleeve is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a perspective view of an external magnetic rotor and impeller in accordance with the present invention.

Fig. 3 is a cross-sectional view of the principal surface of fig. 2 in the present invention.

Fig. 4 is a main sectional view of all structures except the motor in the present invention.

Fig. 5 is a first perspective view of the liquid inlet component of the present invention.

Fig. 6 is a second perspective view of the liquid inlet assembly of the present invention.

Fig. 7 is a perspective view of the spacer and the positioning boss according to the present invention.

Fig. 8 is a schematic perspective view of the pump body, the fixing ring, the liquid inlet assembly and other structures in the invention.

In the figure: 1. a pump body; 2. an impeller; 201. a fan blade; 202. a fixing plate; 203. a fixed shaft; 3. an inner magnetic rotor; 4. a fixing ring; 5. a liquid inlet component; 51. a catheter; 52. a water outlet pipe; 53. a water inlet tank; 54. a water inlet pipe; 55. a first valve; 6. a spacer sleeve; 7. an outer magnetic rotor; 8. a rotating shaft; 9. a motor; 10. an outer sleeve; 11. a circular plate; 12. a connecting shaft; 13. auger blades; 14. a baffle; 15. a water outlet connecting pipe; 16. a water inlet connecting pipe; 17. a drain pipe; 18. a second valve; 19. positioning the bulge; 20. a seal ring; 21. an annular seal groove; 22. a poking plate; 23. a flow guiding strip; 24. and a strip-shaped protrusion.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.

The invention provides a plastic magnetic pump as shown in fig. 1-8, which comprises a pump body 1, wherein an impeller 2 is arranged in the pump body 1, the impeller 2 comprises fan blades 201, a fixing plate 202 and a fixing shaft 203, the fixing plate 202 is fixedly sleeved on the fixing shaft 203, the fan blades 201 are fixedly arranged on the fixing plate 202, one end of the fixing shaft 203, which is far away from the fan blades 201, is fixedly connected with an inner magnetic rotor 3, the inner magnetic rotor 3 is positioned outside the pump body 1, a fixing ring 4 is rotatably sleeved at the position of the fixing shaft 203 between the fixing plate 202 and the inner magnetic rotor 3, a plurality of fixing rods are fixedly connected between the outer side of the fixing ring 4 and the pump body 1, a liquid inlet assembly 5 is sleeved at the position of the fixing shaft 203 between the fixing plate 202 and the inner magnetic rotor 3, the liquid inlet assembly 5 comprises an annular liquid guide tube 51, the liquid guide tube 51 is positioned in the pump body 1, one side, which is close to the inner magnetic rotor 3, of the liquid guide tube 51 is vertically and fixedly connected with a plurality of water outlet pipes 52, the water outlet pipes 52 are inserted into one side, which is close to the isolation sleeve 6, which is opposite to the water outlet pipes 52, of the water outlet pipes 53 are inserted into the water inlet grooves 53, the water inlet holes 53 are inserted into the water inlet pipes 52, the water inlet holes 54 are inserted into the water inlet holes 54 and the water inlet pipe 52, the water inlet pipe 52 are inserted into the water inlet pipe 52, the water inlet pipe 52 and the water inlet and the water outlet 52 and the water outlet water inlet and the water outlet air.

The outside rotation of interior magnetic rotor 3 has cup jointed spacer sleeve 6, spacer sleeve 6 is in the same place with pump body 1 detachable fixed connection, spacer sleeve 6's outside rotation has cup jointed outer magnetic rotor 7, one side perpendicular fixedly connected with pivot 8 of keeping away from pump body 1 of outer magnetic rotor 7, one end that outer magnetic rotor 7 was kept away from to pivot 8 is connected with motor 9, detachable is connected with outer tube 10 between motor 9 and the pump body 1, outer tube 10 cup joints in outer magnetic rotor 7's outside, the inside fixedly connected with plectane 11 of outer tube 10, plectane 11 rotates and cup joints in pivot 8.

When the liquid medium cooling device is used, as the motor 9 is started, the motor 9 drives the outer magnetic rotor 7 to rotate through the rotating shaft 8, as the outer magnetic rotor 7 rotates, the inner magnetic rotor 3 and the impeller 2 can start to rotate under the driving of the outer magnetic rotor 7, as the impeller 2 rotates, the impeller 2 can suck a liquid medium into the pump body 1 through the water inlet connecting pipe 16, as the liquid medium enters the pump body 1, the liquid medium can enter the liquid guide pipe 51 through the water inlet hole on the liquid guide pipe 51 under the action of the impeller 2, then the liquid medium entering the liquid guide pipe 51 can enter the corresponding water inlet groove 53 through the plurality of water outlet pipes 52, and finally enters the space between the isolation sleeve 6 and the inner magnetic rotor 3 through the connecting holes on the water inlet groove 53, so that the flow speed of the liquid medium between the isolation sleeve 6 and the inner magnetic rotor 3 is accelerated, and the cooling effect of the liquid medium on the isolation sleeve 6 is improved.

In addition, in order to ensure normal and smooth operation of the pump body 1, before the pump body 1 is started, the pump body 1 is generally required to be subjected to a pumping operation, so that air in the pump body 1 is discharged, and during pumping, liquid medium can be injected into the pump body 1 through the water inlet pipe 54, and along with continuous injection of the liquid medium, the air in the pump body 1 can move upwards under extrusion of the liquid medium and finally is collected at the water outlet connecting pipe 15 at the top of the pump body 1, and at the moment, along with the starting of the pump body 1, the gas collected at the water outlet connecting pipe 15 can be smoothly discharged out of the pump body 1 through the water outlet connecting pipe 15, so that the pumping efficiency is improved.

In addition, when the viscosity of the liquid medium pumped in the pump body 1 is high, after the pump body 1 is used, the pump body 1 needs to be cleaned, at this time, clean water can be injected into the pump body 1 through the water inlet pipe 54, and along with the injection of the clean water, the clean water can directly enter the inner side of the isolation sleeve 6 through the liquid guide pipe 51, the water outlet pipe 52, the water inlet groove 53 and the connecting hole in sequence, so that the inner side of the isolation sleeve 6 and the inner magnetic rotor 3 are cleaned.

As shown in fig. 2 and 3, the inner magnetic rotor 3 is in a sleeve form, the opening of the inner magnetic rotor 3 is opposite to the rotating shaft 8, a connecting shaft 12 is arranged on the inner side of the inner magnetic rotor 3, one end, close to the fixed shaft 203, of the connecting shaft 12 is vertically and fixedly connected with the inner wall of one side, corresponding to the inner magnetic rotor 3, of the inner magnetic rotor 3, an auger blade 13 is fixedly connected to the outer surface of the connecting shaft 12, the auger blade 13 can push liquid in a direction close to the fixed shaft 203, the connecting shaft 12 and the fixed shaft 203 are of hollow design, two ends of the fixed shaft 203 are mutually communicated, one end, opposite to the fixed shaft 203 and the connecting shaft 12, of the connecting shaft 12 is mutually communicated, a plurality of through holes are formed in the surface of the connecting shaft 12 in a penetrating manner, a baffle 14 is arranged at one end, far away from the connecting shaft 12, of the fixed shaft 203, and a plurality of connecting blocks are fixedly connected between the baffle 14 and the fixed shaft 203.

Through being provided with auger blade 13 in the inboard of inner magnetic rotor 3, when inner magnetic rotor 3 rotates, impeller 2 can rotate together under the drive of inner magnetic rotor 3, thereby draw in the liquid medium to the pump body 1 inside through intake connection pipe 16, liquid medium that later enters into in the pump body 1 can discharge pump body 1 through play water connecting pipe 15, simultaneously, along with the rotation of inner magnetic rotor 3, connecting axle 12 and auger blade 13 also rotate together under the drive of inner magnetic rotor 3, and along with the rotation of auger blade 13, auger blade 13 can promote the liquid medium of inner magnetic rotor 3 inboard to the direction that is close to fixed axle 203, and along with the liquid medium of inner magnetic rotor 3 inboard is promoted, the liquid medium of inner magnetic rotor 3 inboard can enter into the connecting axle 12 inboard through the through-hole on connecting axle 12, then the liquid medium that enters into in the connecting axle 12 can flow through the clearance of fixed axle 203 tip and baffle 14, thereby accelerate the velocity of the inboard liquid medium of inner magnetic rotor 3, and the cooling effect of spacer sleeve 6 are improved.

In addition, through being provided with baffle 14, when external liquid medium is inhaled to the inside of pump body 1 under impeller 2's effect, baffle 14 can block the liquid medium that just gets into, avoids liquid medium directly to enter into fixed axle 203 inside to guarantee that the inside liquid medium of interior magnetic rotor 3 can flow out through fixed axle 203 smoothly under the effect of auger blade 13, and then guarantee the cooling effect of liquid medium to interior magnetic rotor 3 inboard.

As shown in fig. 3 and 4, the inner wall thicknesses of the inner magnetic rotor 3 and the spacer sleeve 6 are respectively thickened gradually in a direction away from each other, the inner wall thickness of the pump body 1 is thickened gradually in a direction close to the spacer sleeve 6, the top of the pump body 1 and one side of the pump body 1 away from the outer sleeve 10 are respectively connected with a water outlet connecting pipe 15 and a water inlet connecting pipe 16, the water outlet connecting pipe 15 is positioned at the thinnest position of the inner wall of the pump body 1, the bottom of the pump body 1 is connected with a water drain pipe 17, a second valve 18 is mounted on the water drain pipe 17, and the water drain pipe 17 is also positioned at the thinnest position of the inner wall of the pump body 1.

In order to ensure normal and smooth operation of the pump body 1, before the pump body 1 is started, the pump body 1 is generally required to be subjected to pumping operation, so that air in the pump body 1 is discharged, while during pumping, the second valve 18 is closed, the first valve 55 is opened, then liquid medium is injected into the pump body 1 through the water inlet pipe 54, and along with continuous injection of the liquid medium, the air in the pump body 1 can move upwards under extrusion of the liquid medium, and because the inner magnetic rotor 3, the isolation sleeve 6 and the inner wall of the pump body 1 are all of inclined surfaces, air can be smoothly discharged from the inner sides of the isolation sleeve 6 and the inner magnetic rotor 3 and finally is collected at the water outlet connecting pipe 15 at the top of the pump body 1, and at this time, along with starting of the pump body 1, the air collected at the water outlet connecting pipe 15 can be smoothly discharged out of the pump body 1 through the water outlet connecting pipe 15, so that pumping efficiency is improved.

In addition, when the viscosity of the liquid medium pumped in the pump body 1 is high, after the pump body 1 is used, the pump body 1 needs to be cleaned, at this time, the first valve 55 and the second valve 18 can be opened, clean water is injected into the pump body 1 through the water inlet pipe 54, and along with the injection of the clean water, the clean water can directly enter the inner side of the isolation sleeve 6 through the liquid guide pipe 51, the water outlet pipe 52, the water inlet groove 53 and the connecting hole in sequence, so that the inner side of the isolation sleeve 6 and the inner magnetic rotor 3 are cleaned, and because the inner walls of the isolation sleeve 6 and the inner magnetic rotor 3 are designed to be inclined surfaces, the cleaned sewage can also flow out of the inner sides of the isolation sleeve 6 and the inner magnetic rotor 3 rapidly, so that the residual of the sewage is avoided, and finally the sewage generated by cleaning can be discharged out of the pump body 1 through the water outlet pipe 17.

As shown in fig. 7, a positioning protrusion 19 is fixedly connected to a position of the spacer sleeve 6 opposite to the connecting shaft 12, and the positioning protrusion 19 is rotatably inserted into an axle center of a corresponding end of the connecting shaft 12.

When the isolation sleeve 6 is connected with the pump body 1, the positioning protrusion 19 on the inner side of the isolation sleeve 6 can be spliced with one end, far away from the fixed shaft 203, of the connecting shaft 12, so that the connecting shaft 12 is limited, and the stability of the connecting shaft 12 and the auger blade 13 during rotation is ensured.

As shown in fig. 7 and 8, the edge of the spacer sleeve 6 near one end of the pump body 1 protrudes outwards, and a sealing ring 20 is fixedly connected to one side of the portion of the spacer sleeve 6 protruding outwards opposite to the pump body 1, an annular sealing groove 21 matched with the sealing ring 20 is formed in the pump body 1 at the position corresponding to the sealing ring 20, and the sealing ring 20 is inserted into the annular sealing groove 21.

When the isolation sleeve 6 is connected with the pump body 1, the sealing ring 20 on the isolation sleeve 6 can be spliced with the annular sealing groove 21 on the pump body 1, so that the air tightness of the connection of the isolation sleeve 6 and the pump body 1 is improved, and the leakage of a liquid medium in the pump body 1 into the outer magnetic rotor 7 through the connection of the isolation sleeve and the pump body 1 is avoided.

As shown in fig. 2, 3 and 6, a plurality of poking plates 22 are annularly distributed on one side of the fixing plate 202 close to the liquid guide tube 51, the poking plates 22 are vertically and fixedly connected with the fixing plate 202, the poking plates 22 are opposite to a water inlet hole on the liquid guide tube 51, a guide strip 23 is obliquely and fixedly connected in the water inlet hole, one end of the guide strip 23 close to the positive rotation of the fixing plate 202 is positioned outside the water inlet hole, and the guide strip 23 is not contacted with the poking plates 22.

Through being provided with the deflector 22, when impeller 2 rotates, the deflector 22 rotates together under the drive of impeller 2 to constantly stir the liquid medium in the pump body 1, simultaneously, because deflector 22 is relative with the inlet opening of catheter 51, and be provided with guide bar 23 in the inlet opening, therefore when the liquid medium runs into the guide bar 23 in the inlet opening under the deflector 22 stir, liquid medium enters into catheter 51 fast under the effect of guide bar 23, the liquid medium that later enters into in the catheter 51 can enter into corresponding intake groove 53 through a plurality of outlet pipes 52, and finally enter into between spacer sleeve 6 and the interior magnetic rotor 3 through the connecting hole on the intake groove 53, thereby accelerate the velocity of flow of liquid medium between spacer sleeve 6 and the interior magnetic rotor 3, and then improve the cooling effect of liquid medium to spacer sleeve 6.

As shown in fig. 2 and 4, the outer surface of the inner magnetic rotor 3 is fixedly connected with a plurality of strip-shaped protrusions 24, and the plurality of strip-shaped protrusions 24 are annularly distributed on the outer surface of the inner magnetic rotor 3.

Through being provided with bar protruding 24, when interior magnetic rotor 3 rotates under the effect of outer magnetic rotor 7, the bar protruding 24 on interior magnetic rotor 3 surface can stir the liquid medium between spacer sleeve 6 and the interior magnetic rotor 3 to accelerate the velocity of flow of this position liquid medium, and then cooperate intake groove 53 to the water conservancy diversion effect of liquid medium, further improve the cooling effect of liquid medium to spacer sleeve 6.

The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.

Claims

1. The utility model provides a plastics magnetic drive pump, includes the pump body (1), its characterized in that: the novel centrifugal pump is characterized in that an impeller (2) is arranged in the pump body (1), the impeller (2) comprises fan blades (201), a fixing plate (202) and a fixing shaft (203), the fixing plate (202) is fixedly sleeved on the fixing shaft (203), the fan blades (201) are fixedly installed on the fixing plate (202), one end, far away from the fan blades (201), of the fixing shaft (203) is fixedly connected with an inner magnetic rotor (3), the inner magnetic rotor (3) is positioned outside the pump body (1), the fixing shaft (203) is positioned between the fixing plate (202) and the inner magnetic rotor (3) and is rotatably sleeved with a fixing ring (4), a plurality of fixing rods are fixedly connected between the outer side of the fixing ring (4) and the pump body (1), and a liquid inlet component (5) is sleeved at the position, located between the fixing plate (202) and the inner magnetic rotor (3), of the fixing shaft (203); the external rotation of interior magnetic rotor (3) has cup jointed spacer sleeve (6), spacer sleeve (6) and the detachable fixed connection of pump body (1) are in the same place, the outside rotation of spacer sleeve (6) has cup jointed outer magnetic rotor (7), one side that outer magnetic rotor (7) kept away from pump body (1) is perpendicular fixedly connected with pivot (8), one end that outer magnetic rotor (7) was kept away from in pivot (8) is connected with motor (9), detachable be connected with outer tube (10) between motor (9) and pump body (1), outer tube (10) cup joint in the outside of outer magnetic rotor (7), the inside fixedly connected with plectane (11) of outer tube (10), plectane (11) rotate and cup joint on pivot (8);

the liquid inlet assembly (5) comprises an annular liquid guide tube (51), the liquid guide tube (51) is located inside the pump body (1), one side, close to the inner magnetic rotor (3), of the liquid guide tube (51) is vertically and fixedly connected with a plurality of water outlet tubes (52), the water outlet tubes (52) are inserted into one side, close to the isolation sleeve (6), of the pump body (1) in a penetrating mode, the isolation sleeve (6) is provided with a water inlet groove (53) at the position opposite to the water outlet tubes (52), the water outlet tubes (52) are inserted into the water inlet groove (53), one side, close to the center of the inner magnetic rotor (3), of the water inlet groove (53) is provided with a plurality of connecting holes in a penetrating mode, one side, close to the water outlet tubes (52), of the liquid guide tube (51) is provided with a plurality of water inlet tubes (54) in a penetrating mode, the water inlet tubes (54) are inserted into the top of the pump body (1), and the portions, located outside the pump body (1), of the water inlet tubes (54) are provided with first valves (55);

the inner magnetic rotor (3) is of a sleeve form, an opening of the inner magnetic rotor (3) is opposite to the rotating shaft (8), a connecting shaft (12) is arranged on the inner side of the inner magnetic rotor (3), one end of the connecting shaft (12) close to the fixed shaft (203) is fixedly connected with the inner wall of one side corresponding to the inner magnetic rotor (3) vertically, an auger blade (13) is fixedly connected to the outer surface of the connecting shaft (12), the auger blade (13) can push liquid to the direction close to the fixed shaft (203), the connecting shaft (12) and the fixed shaft (203) are of a hollow design, two ends of the fixed shaft (203) are mutually communicated, one end of the fixed shaft (203) opposite to the connecting shaft (12) is also mutually communicated, a plurality of through holes are formed in the surface of the connecting shaft (12), one end, far away from the connecting shaft (12), of the fixed shaft (203) is provided with a baffle (14), and a plurality of connecting blocks (14) are fixedly connected between the baffle (14) and the fixed shaft (203).

2. The plastic magnetic pump of claim 1, wherein: the inner magnetic rotor (3) and the inner wall thickness of the isolation sleeve (6) are respectively thickened in a direction far away from each other, the inner wall thickness of the pump body (1) is gradually thickened in a direction close to the isolation sleeve (6), the top of the pump body (1) and one side, far away from the outer sleeve (10), of the pump body (1) are respectively connected with a water outlet connecting pipe (15) and a water inlet connecting pipe (16), the water outlet connecting pipe (15) is located at the thinnest position of the inner wall of the pump body (1), the bottom of the pump body (1) is connected with a drain pipe (17), a second valve (18) is installed on the drain pipe (17), and the drain pipe (17) is also located at the thinnest position of the inner wall of the pump body (1).

3. The plastic magnetic pump of claim 2, wherein: the isolating sleeve (6) is fixedly connected with a positioning protrusion (19) at the position opposite to the connecting shaft (12), and the positioning protrusion (19) is rotationally inserted at the axle center of the corresponding end of the connecting shaft (12).

4. A plastic magnetic pump as claimed in claim 3, characterized in that: the edge that isolation sleeve (6) is close to one end of the pump body (1) outwards protrudes, and one side that isolation sleeve (6) outwards protrudes is opposite with the pump body (1) fixedly connected with sealing ring (20), sealing ring (20) correspond the position set up on the pump body (1) with sealing ring (20) assorted annular seal groove (21), and sealing ring (20) are pegged graft in annular seal groove (21).

5. The plastic magnetic pump of claim 1, wherein: one side of fixed plate (202) near catheter (51) annular distribution has a plurality of boards (22) of dialling, dial board (22) and fixed plate (202) vertical fixation, and dial board (22) and the inlet opening on catheter (51) are relative, inclined fixedly connected with water conservancy diversion strip (23) in the inlet opening, water conservancy diversion strip (23) are close to fixed plate (202) forward pivoted one end and are located the inlet opening outside, and water conservancy diversion strip (23) do not contact with dial board (22).

6. The plastic magnetic pump of claim 2, wherein: the outer surface of the inner magnetic rotor (3) is fixedly connected with a plurality of strip-shaped protrusions (24), and the strip-shaped protrusions (24) are annularly distributed on the outer surface of the inner magnetic rotor (3).