CN213655104U

CN213655104U - Flow pump

Info

Publication number: CN213655104U
Application number: CN202022535548.XU
Authority: CN
Inventors: 陈元圣
Original assignee: Dongguan Jingchi Electronics Co ltd
Current assignee: Dongguan Jingchi Electronics Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-07-09
Anticipated expiration: 2030-11-05

Abstract

The utility model relates to a flow pump integrating liquid pumping and flow control, which comprises a pump liquid module for pumping liquid and a detection module for flow detection; the liquid pumping module and the detection module are fixedly connected by screws; a liquid inlet cavity and a liquid outlet cavity are arranged between the liquid pumping module and the detection module; the detection module consists of a rotor module, a bottom cover, a liquid inlet and outlet shunting cover and an inductor for inducing the rotor; the rotor module consists of a rotor bracket and a rotor; the rotor module and the liquid inlet and outlet shunting cover are fixedly embedded in the bottom cover; the inductor is arranged outside the bottom cover; the detection module is provided with a liquid inlet connecting pipe and a liquid outlet connecting pipe; the detection module is provided with a detection cavity; the liquid inlet hole is communicated with the detection cavity and the liquid inlet connecting pipe; the detection module is provided with a detection liquid outlet channel which is communicated with the detection cavity and the lower chamber of the liquid inlet cavity; the detection module is provided with a pump-out liquid channel communicated with the lower chamber of the liquid outlet cavity and the liquid outlet connecting pipe; the flow pump does not need an external flowmeter, and has the advantages of compact structure, accurate and stable performance and the like compared with other metering pumps.

Description

Flow pump

Technical Field

The utility model relates to a liquid is pumped and is sent and measuring equipment field, especially a water pump flow metering device.

Background

The existing liquid pump and the existing flow meter are independent products, and the existing liquid pump and the existing flow meter are connected through a connecting pipe to form a flow control system, so that the liquid pump and the flow meter are controlled. The liquid pumping and flow control system is widely applied to medical equipment machinery, machine equipment, experimental instruments, water dispensers, coffee machines, electric cookers, intelligent toilets and other household appliances. The connecting pipe connecting mode is adopted, the structure space is large, the production efficiency is low, the production and manufacturing cost needs to be additionally increased, and the problems that the matching performance is poor, the flow control debugging difficulty is difficult and not accurate and the like are caused when the pump and the flowmeter are not simultaneously produced and controlled are solved. Although the existing product combining the flowmeter and the pump is available, the method is limited to the defects of narrow application range, low precision, high difficulty in production control and the like of simple combination of the flowmeter and the water pump.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to above-mentioned prior art not enough, provide a flow pump.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a flow pump comprises a liquid pumping module for pumping liquid and a detection module for detecting flow; the liquid pumping module and the detection module are fixedly connected together through screws; the detection module is arranged on the lower side of the liquid pumping module; the detection module consists of a rotor module for flow detection, a bottom cover, a liquid inlet and outlet shunting cover and an inductor for inducing the rotor; the rotor module consists of a rotor bracket and a rotor; the rotor bracket is provided with a detection cavity front cavity, a liquid inlet hole and a rotating shaft for supporting the rotor; the liquid inlet and outlet shunting cover is fixedly embedded in the first mounting cavity on the upper side of the bottom cover; the rotor module is fixedly embedded in a second mounting cavity between the bottom cover and the liquid inlet shunting cover; the sensor is arranged on the outer side of the bottom cover and is opposite to the detection cavity; a liquid inlet connecting pipe and a liquid outlet connecting pipe are arranged outside the detection module; a liquid inlet cavity lower chamber and a liquid outlet cavity lower chamber are arranged on the upper side of the detection module; a detection cavity containing a detection cavity front chamber is arranged in the detection module; the liquid inlet hole of the rotor bracket is communicated with the detection cavity and the liquid inlet connecting pipe; the detection module is provided with a detection liquid outlet channel which is communicated with the detection cavity and the lower chamber of the liquid inlet cavity; the detection module is provided with a pump-out liquid channel communicated with the lower chamber of the liquid outlet cavity and the liquid outlet connecting pipe; a liquid inlet cavity is formed by a liquid inlet cavity lower chamber on the upper side of the detection module and the lower side of the liquid pumping module; and a liquid outlet cavity is formed by the lower liquid outlet cavity chamber at the upper side of the detection module and the lower side of the liquid pumping module.

The liquid in the liquid inlet connecting pipe flows to the detection cavity from the liquid inlet hole of the rotor support along the tangential direction of the rotation of the rotor, a vortex is formed in the detection cavity to push the rotor to rotate, the liquid in the detection cavity flows to the liquid inlet cavity from the liquid outlet detection channel, the liquid in the liquid inlet cavity is pumped to the liquid outlet cavity under the action of the pumping liquid of the liquid pumping module, and finally the liquid flows to the liquid outlet connecting pipe from the liquid outlet cavity through the liquid outlet pumping channel.

In the technical scheme, the structure that the liquid inlet hole and the rotating shaft are arranged on the same rotor bracket is more stable to flow detection; the rotating shaft of the rotor bracket and the rotor bracket are in any one of split embedded type or integrated forming; rotor support's feed liquor hole sets up along rotor pivoted tangential direction, rotor support's feed liquor hole and detection chamber between be equipped with C type guiding gutter, C type guiding gutter and feed liquor jogged joint department be equipped with feed liquor hole technology plane, feed liquor hole technology plane's modular structure do benefit to the mould structure position accurate location in feed liquor hole to make the liquid that detects the chamber from feed liquor hole flow direction more accurate stable.

In the technical scheme, a sealing ring is arranged between the bottom cover and the rotor module and used for sealing the front chamber of the detection cavity, and liquid flowing into the detection cavity can only pass through the liquid inlet hole; a first sealing gasket is arranged between the bottom of the first mounting cavity of the bottom cover and the liquid inlet and outlet shunting cover and is used for sealing the rear chamber of the detection cavity and a liquid outlet channel; a liquid outlet cavity sealing pressing bone is arranged on the top end face of the wall of the lower chamber of the liquid outlet cavity, a liquid inlet cavity sealing pressing bone is arranged on the top of the wall of the first mounting cavity of the bottom cover, and a second sealing gasket is arranged between the liquid pumping module and the detection module; the second sealing gasket is used for sealing a liquid inlet cavity and a liquid outlet cavity between the liquid pumping module and the detection module.

In the above technical scheme, the liquid inlet connecting pipe of the detection module is arranged at any position of the bottom surface or the side surface of the bottom cover, and the liquid outlet connecting pipe of the detection module is arranged at any position of the bottom surface or the side surface of the bottom cover; the first mounting cavity is arranged on the upper side of the bottom cover, the second mounting cavity is arranged at the bottom of the first mounting cavity, a first liquid outlet channel communicated with the liquid outlet connecting pipe is further arranged at the bottom of the first mounting cavity, and a sealing concave table for mounting a sealing ring is arranged at the bottom of the second mounting cavity; and an inductor installation cavity is arranged at the position, right facing the rotor, of the outer side of the bottom cover and used for installing an inductor.

In the technical scheme, a liquid outlet cavity lower chamber of the detection module is arranged in the middle of the upper side of the liquid inlet and outlet shunt cover, and a liquid outlet valve positioning column and a liquid outlet valve limiting surrounding bone of the liquid pumping module are arranged in the liquid outlet cavity lower chamber; a liquid inlet groove is formed in the periphery of the outer side of the lower liquid outlet cavity, and the liquid inlet groove and the first bottom cover mounting cavity form a lower liquid inlet cavity chamber of the detection module; a detection cavity rear chamber is arranged at the lower side of the liquid inlet and outlet flow dividing cover, and a detection liquid outlet channel is arranged between the liquid inlet groove and the detection cavity rear chamber and communicated with the liquid inlet groove and the liquid outlet groove; the liquid outlet cavity is provided with a second liquid outlet channel of the pump.

In the above technical solution, the detection cavity of the detection module is composed of a front detection cavity chamber of the rotor support, a rear detection cavity chamber of the liquid inlet and outlet flow dividing cover, and a second installation cavity of the bottom cover; the liquid pumping channel of the detection module consists of a first liquid outlet channel of the liquid inlet and outlet shunting cover, a second liquid outlet channel of the bottom cover and a liquid outlet connecting pipe.

In the above technical scheme, the rotor includes a main rotating body and an induction magnet, the induction magnet is disposed in the main rotating body, the rotor is provided with a rotating shaft hole matched with the rotating shaft, the rotating shaft hole is any one of a blind hole and a through hole, the rotor rotates around the rotating shaft, the rotor is provided with a plurality of blades, and the blades are uniformly distributed in a circumferential manner around a center shaft of the main rotating body.

In the above technical scheme, when the rotating shaft hole of the rotor is a blind hole, the top of the rotor is provided with a hemispherical protrusion for reducing the rotating friction of the rotor, and the top of the rotating shaft of the rotor bracket is provided with any one of a spherical head or a fire arrow head for reducing the rotating friction of the rotor.

In the technical scheme, when the rotating shaft hole of the rotor is a through hole, the top of the rotor is provided with a circle of upper flange which is used for reducing the rotating friction of the rotor, the bottom of the rotor is provided with a circle of lower flange which is used for reducing the rotating friction of the rotor,

in the technical scheme, the inductor comprises a magnetic induction IC, a PCB and a lead-out wire, and is arranged in an induction cavity outside the bottom cover and fixedly connected in an inductor installation cavity by using packaging glue; or the inductor consists of a magnetic induction IC, a PCB and a terminal connector and is fixedly connected in the inductor mounting cavity; when the sensor works, the sensor senses the magnetic field change at the position of the sensor, which is generated by the rotation of the rotor, and feeds a generated signal back to an external central processing unit for controlling the pump to work to carry out calculation control.

In the technical scheme, positioning columns are uniformly arranged on the periphery of the wall of the first mounting cavity of the bottom cover and used for mounting and positioning the detection module and the liquid pumping module, and screw holes are formed in the centers of the positioning columns; the liquid pumping module is provided with a positioning hole and a screw hole corresponding to the bottom cover positioning column; the screw passes through the screw hole of bottom and pump liquid module and becomes complete flow pump with detection module and pump liquid module fixed connection.

The utility model has the advantages that: a flow pump integrating liquid pumping and flow control comprises a liquid pumping module for pumping liquid and a detection module for flow detection; the liquid pumping module and the detection module are fixedly connected together through screws; the detection module is arranged on the lower side of the liquid pumping module; the detection module consists of a rotor module for flow detection, a bottom cover, a liquid inlet and outlet shunting cover and an inductor for inducing the rotor; the rotor module consists of a rotor bracket and a rotor; the rotor bracket is provided with a detection cavity front cavity, a liquid inlet hole and a rotating shaft for supporting the rotor; the liquid inlet and outlet shunting cover is fixedly embedded in the first mounting cavity on the upper side of the bottom cover; the rotor module is fixedly embedded in a second mounting cavity between the bottom cover and the liquid inlet shunting cover; the inductor is arranged at the position, opposite to the rotor, of the outer side of the bottom cover; a liquid inlet connecting pipe and a liquid outlet connecting pipe are arranged outside the detection module; a liquid inlet cavity lower chamber and a liquid outlet cavity lower chamber are arranged on the upper side of the detection module; a detection cavity containing a detection cavity front chamber is arranged in the detection module; the liquid inlet hole of the rotor bracket is communicated with the detection cavity and the liquid inlet connecting pipe; the detection module is provided with a detection liquid outlet channel which is communicated with the detection cavity and the lower chamber of the liquid inlet cavity; the detection module is provided with a pump-out liquid channel communicated with the lower chamber of the liquid outlet cavity and the liquid outlet connecting pipe. The structure that the liquid inlet hole and the rotating shaft for supporting the rotor are arranged on the same rotor bracket ensures that the liquid in the detection cavity pushes the rotor to work more accurately and stably and the production management and control are easier; the flow pump has the advantages that the flow detection module is designed into the bottom cover form of a common pump, the detection module and the pump liquid module are perfectly integrated, a flow sensor is not required to be additionally connected, and compared with other metering pumps, the flow pump has the advantages of compact structure, high matching performance, more accurate and stable performance, good flow control and the like.

Drawings

Fig. 1 is a schematic structural view of a flow pump of the present invention.

Fig. 2 is the utility model relates to a flow pump module split sketch map.

Fig. 3 is a schematic view of a split structure of a flow pump of the present invention.

Fig. 4 is a partial structure sectional view (a) of the flow pump of the present invention.

Fig. 5 is a sectional view of the partial structure of a flow pump according to the present invention.

Fig. 6 is a schematic structural diagram of a flow pump detection module of the present invention.

Fig. 7 is a schematic structural view of a bottom cover (upper side) of a flow pump according to the present invention.

Fig. 8 is a schematic view of the bottom cover (lower side) of the flow pump of the present invention.

Fig. 9 is a cross-sectional view of a bottom cover of a flow pump according to the present invention.

Fig. 10 is a schematic structural view of the liquid inlet/outlet flow dividing cover (upper side) of the flow pump of the present invention.

Fig. 11 is a schematic structural view of the liquid inlet/outlet flow dividing cover (lower side) of the flow pump of the present invention.

Fig. 12 is a cross-sectional view of the inlet/outlet flow dividing cover of the flow pump of the present invention.

Fig. 13 is a schematic structural diagram of a rotor module (embodiment one) of a flow pump according to the present invention.

Fig. 14 is a schematic view of a split structure of a rotor module (solution one) of a flow pump according to the present invention.

Fig. 15 is a cross-sectional view of a rotor module (embodiment one) of a flow pump according to the present invention.

Fig. 16 is a schematic structural view of a rotor holder (embodiment one) of a flow pump according to the present invention.

Fig. 17 is a schematic view of a rotor (blind hole) structure of a flow pump according to the present invention.

Fig. 18 is a cross-sectional view of a rotor (blind hole) of a flow pump according to the present invention.

Fig. 19 is a schematic view of a rotor (through hole) structure of a flow pump according to the present invention.

Fig. 20 is a sectional view of a rotor (through hole) of a flow pump according to the present invention.

Fig. 21 is a schematic structural diagram of a rotor module (embodiment two) of a flow pump according to the present invention.

Fig. 22 is a schematic view of a split structure of a rotor module (scheme two) of a flow pump according to the present invention.

Fig. 23 is a schematic structural view of a rotor holder (embodiment two) of a flow pump according to the present invention.

In the figure, 1, a liquid pumping module; 2. a detection module; 3. a bottom cover; 31. a first mounting cavity; 32. a second mounting cavity; 33. a first liquid outlet channel; 34. a liquid outlet connecting pipe; 35. a liquid inlet connecting pipe; 36. sealing the concave platform; 37. a sensor mounting cavity; 38. A positioning column; 39. a screw hole; 310. a first installation cavity wall; 311. The liquid inlet cavity is sealed and pressed with the bone; 4. an inductor; 41. sensing the IC; 42. a PCB board; 43. leading out the electric wire; 44. packaging glue; 5. a rotor module; 51. a rotor support; 511. a detection chamber antechamber; 512. a rotating shaft; 513. a spherical head; 514. a liquid inlet hole; 515. c-shaped diversion trenches; 516. a liquid inlet hole process plane; 517. a rotor support through hole; 52. a rotor; 521. a main swivel; 522. A blade; 523. a hemispherical protrusion; 524. a rotating shaft hole; 525. an induction magnet; 526. a lower flange; 527. an upper flange; 6. a first gasket; 7. a liquid inlet and outlet shunting cover; 71. a lower chamber of the liquid outlet cavity; 72. a liquid inlet tank; 73. a detection chamber rear chamber; 74. detecting a liquid outlet channel; 75. a second liquid outlet channel; 76. a liquid outlet valve positioning column; 77. the liquid outlet valve is limited to surround the bone; 78 to form a lower chamber wall of the liquid outlet cavity; 79. the liquid outlet cavity is sealed and pressed with the bone; 8. a second gasket; 9. a seal ring; 10. a screw; 101. a detection chamber; 102. a liquid inlet cavity lower chamber; 103. a liquid inlet cavity; 104. a liquid outlet cavity; 105. the fluid channel is pumped out.

Detailed Description

The present invention will be described in further detail with reference to fig. 1 to 23.

A flow pump comprises a pump liquid module 1 for pumping liquid and a detection module 2 for detecting flow; the liquid pumping module 1 and the detection module 2 are fixedly connected together through a screw 11; the detection module 2 is arranged at the lower side of the liquid pumping module 1; the detection module 1 consists of a rotor module 5 for flow detection, a bottom cover 3, a liquid inlet and outlet shunting cover 7 and an inductor 4 for inducing a rotor; the rotor module 5 is composed of a rotor bracket 51 and a rotor 52; the rotor bracket 51 is provided with a detection cavity front cavity 511, a liquid inlet hole 514 and a rotating shaft 512 for supporting the rotor; the liquid inlet and outlet shunting cover 7 is fixedly embedded in a first mounting cavity 31 on the upper side of the bottom cover 3; the rotor module 5 is fixedly embedded in a second mounting cavity 32 between the bottom cover 1 and the liquid inlet diversion cover 7; the inductor 4 is arranged at the position, opposite to the rotor 52, outside the bottom cover; a liquid inlet connecting pipe 35 and a liquid outlet connecting pipe 34 are arranged outside the detection module 2; the upper side of the detection module 2 is provided with a liquid inlet cavity lower chamber 102 and a liquid outlet cavity lower chamber 71; a detection cavity 101 containing a detection cavity front chamber 511 is arranged in the detection module 2; the liquid inlet hole 514 of the rotor bracket 51 is communicated with the detection cavity 101 and the liquid inlet connecting pipe 35; the detection module 2 is provided with a detection liquid outlet channel 74 which is communicated with a detection cavity 101 and a liquid inlet cavity lower chamber 102; the detection module 2 is provided with a pump liquid outlet channel 105 communicated with the liquid outlet cavity lower chamber 71 and the liquid outlet connecting pipe 34; a liquid inlet cavity 103 is formed by a liquid inlet cavity lower chamber 102 on the upper side of the detection module 2 and the lower side of the liquid pumping module 1; the lower liquid outlet chamber 71 on the upper side of the detection module and the lower side of the liquid pumping module 1 form a liquid outlet cavity 104.

The liquid in the liquid inlet connecting pipe 35 flows from the liquid inlet hole 514 of the rotor bracket 51 to the detection cavity 101 along the tangential direction of the rotation of the rotor 52, a vortex is formed in the detection cavity 101 to push the rotor 52 to rotate, the liquid in the detection cavity 101 flows from the detection liquid outlet channel 74 to the liquid inlet cavity 103, the liquid in the liquid inlet cavity 103 is pumped to the liquid outlet cavity 104 under the pumping action of the liquid pumping module 1, and finally the liquid flows from the liquid outlet cavity 104 to the pumping liquid outlet connecting pipe 34 through the pumping liquid outlet channel 105.

The liquid inlet hole 514 and the rotating shaft 512 are arranged on the same rotor bracket 51, so that the structure is more stable to flow detection; the rotating shaft 512 of the rotor bracket and the rotor bracket 51 are in any one of split embedding type or integrated forming; the liquid inlet hole 514 of the rotor bracket is arranged along the tangential direction of the rotation of the rotor 52, a C-shaped flow guide groove 515 is arranged between the liquid inlet hole 514 of the rotor bracket 51 and the detection cavity front chamber 511, a liquid inlet hole process plane 516 is arranged at the joint of the C-shaped flow guide groove 515 and the liquid inlet hole 514, and the module structure of the liquid inlet hole process plane 516 is beneficial to the accurate control of the mold structure position of the liquid inlet hole 514, so that the liquid flowing from the liquid inlet hole 514 to the detection cavity 101 is more accurate.

As shown in fig. 13 to 16, in the first embodiment, when the rotor holder 51 is L-shaped, the rotating shaft 512 is disposed at the bottom of the front chamber 511 of the detection chamber, and the rotating shaft 512 and the rotor holder 51 are either embedded separately or integrally formed; when the rotating shaft 512 and the rotor support 51 are in a split-type embedded type, the rotor support 51 is provided with a rotor support through hole matched with the rotating shaft 512.

As shown in fig. 21 to 23, in the second embodiment, when the rotor support 51 is U-shaped, the rotating shaft 512 is fixedly installed at the bottom of the front chamber 511 of the detection chamber or fixed by both the bottom and the top of the front chamber of the detection chamber, when the rotating shaft 512 is fixedly installed at the bottom of the front chamber of the detection chamber, the bottom is provided with a rotor support through hole 517 for installing the rotating shaft 512, and when the rotating shaft 512 is fixed by both the bottom and the top of the front chamber of the detection chamber, the bottom and the top of the front chamber of the detection chamber are respectively provided with a rotor support through hole 517 for installing the rotating shaft 512.

A sealing ring 9 is arranged between the bottom cover 3 and the rotor module 5 for the detection chamber front chamber 511, and the liquid flowing into the detection chamber 101 can only pass through the liquid inlet hole 514; a first sealing gasket 6 is arranged between the bottom of the first bottom cover installation cavity 31 and the liquid inlet and outlet shunting cover 7 and is used for sealing the detection cavity 101 and the liquid outlet channel 105; a liquid outlet cavity sealing pressing bone 79 is arranged at the top end of the liquid outlet cavity lower chamber wall 78, a liquid inlet cavity sealing pressing bone 311 is arranged at the top of the first installation cavity wall 310, and a second sealing gasket 8 is arranged between the liquid pumping module 1 and the detection module 2; the second sealing gasket 8 is used for sealing the liquid inlet cavity 103 and the liquid outlet cavity 104 between the liquid pumping module 1 and the detection module 2 so as to ensure that the two cavities are independent.

The liquid inlet connecting pipe 35 of the detection module 2 is arranged at any position of the bottom surface of the bottom cover 1 or the side surface of the bottom cover, and the liquid outlet connecting pipe 34 of the detection module 2 is arranged at any position of the bottom surface of the bottom cover 1 or the side surface of the bottom cover; the first mounting cavity 31 is arranged at the upper side of the bottom cover, the second mounting cavity 32 is arranged at the bottom of the first mounting cavity 31, the bottom of the first mounting cavity 31 is also provided with a first liquid outlet channel 33 communicated with a liquid outlet connecting pipe 34, and the bottom of the second mounting cavity 32 is provided with a sealing concave platform 36 for mounting the sealing ring 9; an inductor installation cavity 37 is arranged on the outer side of the bottom cover 1 opposite to the rotor 52 and used for installing the inductor 4.

A liquid outlet cavity lower chamber 71 of the detection module is arranged in the middle of the upper side of the liquid inlet and outlet diversion cover 7, and a liquid outlet valve limiting column 76 and a liquid outlet valve limiting surrounding bone 77 of the liquid pumping module are arranged in the liquid outlet cavity lower chamber; a liquid inlet groove 72 is formed in the periphery of the outer side of the liquid outlet cavity lower chamber 71, and the liquid inlet groove 72 and the first bottom cover installation cavity 31 form a liquid inlet cavity lower chamber 102 of the detection module; a detection cavity rear chamber 73 is arranged at the lower side of the liquid inlet and outlet flow dividing cover, and a detection liquid outlet channel 74 is arranged between the liquid inlet groove 72 and the detection cavity rear chamber 73 for communication; the liquid outlet cavity 71 is provided with a second liquid outlet channel 75 of the pump.

The detection cavity 101 of the detection module consists of a detection cavity front chamber 511 of the rotor bracket 51, a detection cavity rear chamber 73 of the liquid inlet and outlet flow dividing cover 7 and a second installation cavity 31 of the bottom cover 3; the pump-out channel 105 of the detection module is composed of a first liquid outlet channel 75 of the liquid inlet and outlet diversion cover, a second liquid outlet channel 33 of the bottom cover and a liquid outlet connecting pipe 34.

The rotor 52 includes a main rotating body 521 and an induction magnet 525, the induction magnet 525 is disposed in the main rotating body 521, the rotor 52 is provided with a rotating shaft hole 524 matched with the rotating shaft 512, the rotating shaft hole 524 is any one of a blind hole and a through hole, the rotor 52 rotates around the rotating shaft 512, the rotor 52 is provided with a plurality of blades 522, and the blades 522 are uniformly distributed circumferentially around the central shaft of the main rotating body 521.

When the rotating shaft hole 524 of the rotor 52 is a blind hole, the top of the rotor 52 is provided with a hemispherical protrusion 523 for reducing the rotating friction of the rotor, and the rotating shaft top 512 of the rotor bracket is provided with any one of a spherical head 513 or a fire arrow for reducing the rotating friction of the rotor.

Wherein, when the rotating shaft hole 524 of the rotor is a through hole, the top of the rotor is provided with an upper flange 527 for reducing the rotating friction of the rotor, the bottom of the rotor is provided with a lower flange 526 for reducing the rotating friction of the rotor,

the inductor 4 comprises a magnetic induction IC41, a PCB 42 and a lead-out wire 43, and the inductor 4 is arranged in the inductor mounting cavity 37 on the outer side of the bottom cover and fixedly connected in the inductor mounting cavity 37 by packaging adhesive 44; or the inductor 4 consists of a magnetic induction IC41, a PCB 42 and a terminal connector and is fixedly connected in the inductor mounting cavity 37; when the inductor 4 works, the magnetic field change generated by the rotation of the rotor at the position of the inductor is induced, and the generated signal is fed back to an external central processing unit for controlling the pump to work to carry out calculation control.

Positioning columns 38 are uniformly arranged on the periphery of a first mounting cavity wall 310 of the bottom cover 3 and used for mounting and positioning the detection module 2 and the liquid pumping module 1, and a screw hole 39 is arranged in the center of each positioning column 38; the liquid pumping module 1 is provided with a positioning hole and a screw hole corresponding to the bottom cover positioning column; the screw 10 fixedly connects the detection module and the liquid pumping module through the screw hole 39 of the bottom cover and the screw hole of the liquid pumping module to form a complete flow pump.

The above embodiments are merely illustrative and not restrictive, and all equivalent changes and modifications made by the methods described in the claims are intended to be included within the scope of the present invention.

Claims

1. A flow pump characterized by: the device comprises a liquid pumping module for pumping liquid and a detection module for detecting flow; the liquid pumping module and the detection module are fixedly connected together by screws; the detection module is arranged on the lower side of the liquid pumping module; the detection module consists of a rotor module for flow detection, a bottom cover, a liquid inlet and outlet shunting cover and an inductor for inducing the rotor; the rotor module consists of a rotor bracket and a rotor; the rotor bracket is provided with a detection cavity front cavity, a liquid inlet hole and a rotating shaft for supporting the rotor; the liquid inlet and outlet shunting cover is embedded and fixed in the first mounting cavity on the upper side of the bottom cover; the rotor module is fixedly embedded in a second mounting cavity between the bottom cover and the liquid inlet shunting cover; the inductor is arranged at the position, opposite to the rotor, of the outer side of the bottom cover; a liquid inlet connecting pipe and a liquid outlet connecting pipe are arranged outside the detection module; a liquid inlet cavity lower chamber and a liquid outlet cavity lower chamber are arranged on the upper side of the detection module; a detection cavity containing a detection cavity front chamber is arranged in the detection module; the liquid inlet hole of the rotor bracket is communicated with the detection cavity and the liquid inlet connecting pipe; the detection module is provided with a detection liquid outlet channel which is communicated with the detection cavity and the lower chamber of the liquid inlet cavity; the detection module is provided with a pump-out liquid channel communicated with the lower chamber of the liquid outlet cavity and the liquid outlet connecting pipe; a liquid inlet cavity is formed by a lower chamber of a liquid inlet cavity of the detection module and the lower side of the liquid pumping module; a liquid outlet cavity is formed by a lower liquid outlet cavity chamber of the detection module and the lower side of the liquid pumping module;

2. A flow pump according to claim 1, wherein: the rotating shaft of the rotor bracket and the rotor bracket are in any one of split embedded type or integrated forming; rotor support's feed liquor hole sets up along rotor pivoted tangential direction, rotor support's feed liquor hole and detection chamber between be equipped with C type guiding gutter, C type guiding gutter and feed liquor jogged joint be equipped with feed liquor hole technology plane, feed liquor hole technology plane's modular structure do benefit to the accurate location of mould structure in feed liquor hole to the messenger detects the more accurate stability of chamber from feed liquor hole flow direction.

3. A flow pump according to claim 1, wherein: a sealing ring is arranged between the bottom cover and the rotor module and is used for sealing the front chamber of the detection chamber and enabling liquid flowing into the detection chamber to only pass through the liquid inlet hole; a first sealing gasket is arranged between the bottom of the first mounting cavity of the bottom cover and the liquid inlet and outlet shunting cover and is used for sealing the rear chamber of the detection cavity and a liquid outlet channel; a liquid outlet cavity sealing pressing bone is arranged on the top end face of the wall of the lower chamber of the liquid outlet cavity, a liquid inlet cavity sealing pressing bone is arranged on the top of the wall of the first mounting cavity of the bottom cover, and a second sealing gasket is arranged between the liquid pumping module and the detection module; the second sealing gasket is used for sealing a liquid inlet cavity and a liquid outlet cavity between the liquid pumping module and the detection module.

4. A flow pump according to any one of claims 1 or 3, wherein: the liquid inlet connecting pipe of the detection module is arranged at any position of the bottom surface or the side surface of the bottom cover, and the liquid outlet connecting pipe of the detection module is arranged at any position of the bottom surface or the side surface of the bottom cover; the first mounting cavity is arranged on the upper side of the bottom cover, the second mounting cavity is arranged at the bottom of the first mounting cavity, a first liquid outlet channel communicated with the liquid outlet connecting pipe is further arranged at the bottom of the first mounting cavity, and a sealing concave table for mounting a sealing ring is arranged at the bottom of the second mounting cavity; and an inductor installation cavity is arranged at the position, right facing the rotor, of the outer side of the bottom cover and used for installing an inductor.

5. A flow pump according to claim 1, wherein: a liquid outlet cavity lower chamber of the detection module is arranged in the middle of the upper side of the liquid inlet and outlet diversion cover, and a liquid outlet valve positioning column and a liquid outlet valve limiting surrounding bone of the liquid pumping module are arranged in the liquid outlet cavity lower chamber; a liquid inlet groove is formed in the periphery of the outer side of the lower liquid outlet cavity, and the liquid inlet groove and the first bottom cover mounting cavity form a lower liquid inlet cavity chamber of the detection module; a detection cavity rear chamber is arranged at the lower side of the liquid inlet and outlet flow dividing cover, and a detection liquid outlet channel is arranged between the liquid inlet groove and the detection cavity rear chamber and communicated with the liquid inlet groove and the liquid outlet groove; the liquid outlet cavity is provided with a second liquid outlet channel of the pump.

6. A flow pump according to any one of claims 1 or 5, characterised in that: the detection cavity of the detection module consists of a detection cavity front chamber of the rotor bracket, a detection cavity rear chamber of the liquid inlet and outlet shunting cover and a second installation cavity of the bottom cover; the liquid pumping channel of the detection module consists of a first liquid outlet channel of the liquid inlet and outlet shunting cover, a second liquid outlet channel of the bottom cover and a liquid outlet connecting pipe.

7. A flow pump according to claim 1, wherein: the rotor comprises a main rotating body and an induction magnet, wherein the induction magnet is arranged in the main rotating body, the rotor is provided with a rotating shaft hole matched with the rotating shaft, the rotating shaft hole is any one of a blind hole and a through hole, the rotor winds the rotating shaft to rotate, a plurality of blades are arranged on the rotor, and the blades are uniformly distributed on the circumference of the center shaft of the main rotating body in a surrounding mode.

8. A flow pump according to claim 7, wherein: when the rotating shaft hole of the rotor is a blind hole, the top of the rotor is provided with a hemispherical bulge for reducing the rotating friction of the rotor, and the top of the rotating shaft of the rotor bracket is provided with any one of a spherical head or a fire arrow head for reducing the rotating friction of the rotor; when the rotating shaft hole of the rotor is a through hole, the top of the rotor is provided with a circle of upper flange used for reducing the rotating friction of the rotor, and the bottom of the rotor is provided with a circle of lower flange used for reducing the rotating friction of the rotor.

9. A flow pump according to claim 1, wherein: the inductor comprises a magnetic induction IC, a PCB and a lead-out wire, and is arranged in an inductor mounting cavity on the outer side of the bottom cover and fixedly connected in the inductor mounting cavity by using packaging glue; or the inductor consists of a magnetic induction IC, a PCB and a terminal connector and is fixedly connected in the inductor mounting cavity; when the sensor works, the sensor senses the magnetic field change at the position of the sensor, which is generated by the rotation of the rotor, and feeds a generated signal back to an external central processing unit for controlling the pump to work to carry out calculation control.

10. A flow pump according to any one of claims 1 or 2, wherein: positioning columns are uniformly arranged on the periphery of the wall of the first mounting cavity of the bottom cover and used for mounting and positioning the detection module and the liquid pumping module, and screw holes are formed in the centers of the positioning columns; the liquid pumping module is provided with a positioning hole and a screw hole corresponding to the bottom cover positioning column; the screw passes through the screw hole of bottom and pump liquid module and becomes complete flow pump with detection module and pump liquid module fixed connection.