CN212959088U - Screw type submersible pump - Google Patents
Screw type submersible pump Download PDFInfo
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- CN212959088U CN212959088U CN202021632861.9U CN202021632861U CN212959088U CN 212959088 U CN212959088 U CN 212959088U CN 202021632861 U CN202021632861 U CN 202021632861U CN 212959088 U CN212959088 U CN 212959088U
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- water inlet
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Abstract
The utility model discloses a screw immersible pump relates to immersible pump technical field, has solved current immersible pump and has easily crossed the fragile problem of low because of the water level descends when the well. The technical scheme is as follows: the utility model provides a screw immersible pump, including control box, motor and water inlet festival, control box and water inlet festival hookup respectively fix the relative both ends at motor stator, they three are coaxial hookup fixed, the controller sets up in the control box, the one end of screw rod is linked fixedly with the motor rotor mutually, the other end is pegged graft in locating the screw rod cover in the water inlet festival, water inlet festival is last to have water inlet and delivery port, the other end of screw rod is located between water inlet and the delivery port, its characterized in that, water level inductive probe passes through the wire and is connected with the controller electricity, the position that sets up of water level inductive probe tip is higher than the water inlet of water inlet festival.
Description
Technical Field
The utility model belongs to the technical field of the immersible pump, especially, relate to a screw immersible pump.
Background
The submersible pump has wide application, such as fountain water supply, agricultural irrigation, chemical petroleum and the like. When the submersible pump is used, the submersible pump is usually submerged below the water level of a water source, and if the water amount of the water source is sufficient, the water level problem does not need to be considered. If the submersible pump is sunk into the water well, the water level in the well is lowered and water is deficient due to the fact that the water quantity in the water well is limited and the water pumping time is too long. In the existing water pump, a controller is usually used to detect the current of the motor to determine whether the screw is in an idle state, so as to control whether the motor stops. However, the difference between the current changes of the screw type submersible pump in no-load and load is relatively small, the controller is easy to influence the sensitivity due to aging after being used for a certain time, and sometimes the controller cannot well control the water pump, so that the water pump is easy to damage.
Chinese patent document (publication No. CN 209067463U) discloses a screw submersible pump, which comprises a pump head, a pump barrel and a pump tail, wherein a motor is arranged in the pump tail, the pump head is detachably connected with the pump barrel, a screw rod and an installation sleeve are arranged in the pump barrel, a screw rod sleeve is arranged in the installation sleeve, a connector is arranged between the screw rod and an output shaft of the motor, the connector is in key connection with the screw rod, a screw rod installation frame is arranged in the pump head, the screw rod installation frame is rotatably connected with one end of the screw rod, which is positioned in the pump head, a first fixing part is arranged on the installation sleeve, a second fixing part is arranged on the screw rod sleeve, a third fixing part is arranged on the screw rod installation frame, the first fixing part, the second fixing part and the third fixing part are both positioned in the pump head, and the installation sleeve. The utility model provides a screw rod immersible pump can solve the inconvenient problem of changing screw rod and screw rod cover of current screw rod immersible pump.
When the screw type submersible pump is used in a well, the problem that the submersible pump cannot be shut down in time due to water shortage caused by water level reduction is easy to occur, the water pump is easy to damage, and the application range of the water pump is limited.
Disclosure of Invention
The utility model discloses the technical problem who needs the solution: the screw type submersible pump can well sense the water level condition of a water source place, and is not easy to damage due to water shortage.
The technical scheme for solving the technical problem is as follows: the utility model provides a screw immersible pump, including control box, motor and water inlet festival, control box and water inlet festival hookup respectively fix the relative both ends at the motor, they three are coaxial hookup fixed, the controller sets up in the control box, the one end of screw rod is linked fixedly with the motor rotor mutually, the other end is pegged graft in locating the screw rod cover in the water inlet festival, water inlet festival is last to have water inlet and delivery port, the other end of screw rod is located between water inlet and the delivery port, its characterized in that, water level inductive probe passes through the wire and is connected with the controller electricity, the position that sets up of water level inductive probe tip is higher than the water inlet of water inlet festival.
The water level sensing probe can be equivalent to an electrode, and a loop is formed between the water level sensing probe and the metal submersible pump body by taking water as a medium, so that the controller can control the motor to continuously work. Or, the water level sensing probe and the submersible pump body are equivalent to two poles of a capacitor, the capacitance can be changed under the condition that water exists or does not exist between the water level sensing probe and the submersible pump body, and the controller can control whether the motor works or not after sensing the change.
Further, the end of the water level sensing probe is arranged at a position flush with the water outlet. The position stability of the water level sensing probe is good, the water level can be conveniently detected, the motor working power supply can be cut off before the submersible pump warns the water level, and a good protection effect can be provided for the submersible pump.
Further, the wire is fixed on the outer peripheral surface of the water inlet joint through the clamping piece, and the wire extends along the axial direction of the water inlet joint. Through the setting of card firmware, and make the positional stability of wire on the immersible pump good.
Furthermore, a cover-shaped water outlet ring is arranged at the upper end of the water inlet joint, a water outlet is formed in the water outlet ring, an outward convex ring is integrally formed on the outer peripheral surface of the screw rod sleeve, and the outward convex ring is pressed between the water outlet ring and the opposite end surface of the water inlet joint so as to realize the axial positioning of the screw rod sleeve. The water outlet ring is provided with a connecting flange, and the water outlet ring is fixed at the end part of the water outlet joint by penetrating and connecting the fixing bolt on the connecting flange. The screw rod sleeve is axially fixed in the submersible pump by the compression joint of the water outlet ring to the outward convex ring, the structure is simple, and the axial stability of the screw rod in the submersible pump is good.
Furthermore, a pressure regulating film is arranged in the outer end of the control box, the axial section of the pressure regulating film is in a shape of 21274, and the opening end of the pressure regulating film is connected with the outer end of the control box in a sealing mode. The pressure regulating film is made of rubber, and the control box is usually communicated with the air pressure in the motor stator. Be provided with the pressure regulating membrane, through the deformation of pressure regulating membrane, and can effectively adapt to the change of motor internal pressure for the job stabilization nature of immersible pump is good.
Compared with the prior art, the utility model has the advantages that: the water level inductive probe is arranged on the outer side of the submersible pump, so that the water level of a water source can be reflected in real time, the controller can control the motor to work in time, the motor still drives the screw rod to rotate under the condition of water shortage, the abrasion of the screw rod to the screw rod sleeve is reduced, and the service life of the submersible pump can be effectively guaranteed.
Drawings
Fig. 1 is an exploded view of the screw-type submersible pump.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The screw type submersible pump is approximately cylindrical in whole, and structurally comprises a control box 13, a motor and a water inlet joint 2, wherein the control box 13, the motor and the water inlet joint 2 are coaxially connected and fixed, and the control box 13 and the water inlet joint 2 are respectively connected and fixed at two opposite ends of the motor. The motor comprises a stator 12 and a rotor 5, an upper bearing seat 3 and a lower bearing seat 7 are respectively arranged at two opposite ends of the rotor 5, the upper bearing seat 3 and the lower bearing seat 7 are respectively connected and fixed in two ends of the stator 12, and bearings 6 are respectively arranged between the rotor 5 and the upper bearing seat 3 and between the rotor 5 and the lower bearing seat 7. The controller 8 is arranged in a control box 13, the control box 13 is fixedly connected with the lower bearing seat 7, and an O-shaped sealing ring 14 is arranged between the control box 13 and the lower bearing seat 7.
The water inlet joint 2 is provided with a water inlet and a water outlet, the water inlet on the water inlet joint 2 is in a grid shape, and the periphery of the water inlet is sleeved with a filter screen 19. One end of the screw 17 is connected and fixed with the motor rotor 5, a spiral structure is formed on the peripheral surface of the screw 17, and when the screw 17 is driven by the motor rotor 5 to rotate, the spiral structure can twist and absorb water flow, so that the water flows from the water inlet to the water outlet on the water inlet joint 2. A screw rod sleeve 18 is axially and fixedly arranged in the water inlet joint 2, the other end of the screw rod 17 is rotatably inserted in the screw rod sleeve 18, and the other end of the screw rod 17 is positioned between the water inlet and the water outlet of the water inlet joint 2. One end of the screw 17 passes through the upper bearing block 3 to be coupled with the motor rotor 5, and a mechanical seal 4 is arranged between the screw 17 and the upper bearing block 3. The outer peripheral surface of the screw 17 is sleeved with a waterproof sleeve 15, and the waterproof sleeve 15 abuts against the upper bearing seat 3.
The metal water level sensing probe is electrically connected with the controller 8 through a lead 16, the water level sensing probe is generally copper and is exposed outside, and the end part of the water level sensing probe is higher than the water inlet of the water inlet joint 2. The periphery of the water inlet joint 2 is provided with a plurality of clamping pieces which are of a clamping structure and are connected and fixed through screws which are connected on the wall body of the water inlet joint 2 in a threaded manner. The fastener fastens the lead 16 so that the lead 16 is fixed on the outer peripheral surface of the water inlet joint 2, and the lead 16 extends along the axial direction of the water inlet joint 2.
The upper end of the water inlet joint 2 is provided with a cover-shaped water outlet ring 1, and a water outlet is formed on the outer end part of the water outlet ring 1. An outward convex ring is integrally formed on the outer peripheral surface of the screw sleeve 18, and the outward convex ring is pressed between the opposite end surfaces of the water outlet ring 1 and the water inlet joint 2 to realize the axial positioning of the screw sleeve 18. The end part of the water level sensing probe is flush with the water outlet, namely flush with the outer end of the water outlet ring 1.
The outer end of the control box 13 is internally provided with a pressure regulating film 11, the pressure regulating film 11 is made of rubber, and the axial section of the pressure regulating film 11 is in a shape of a letter 21274. An end cover 9 is arranged at the outer end of the control box 13, a snap spring 10 is arranged on the outer side of the end cover 9 in the control box 13, and the end cover 9 presses the opening end of the pressure regulating film 11 on the inner wall surface of the outer end of the control box 13, so that the pressure regulating film 11 and the outer end of the control box 13 are connected together in a sealing mode.
Claims (5)
1. The utility model provides a screw immersible pump, including control box, motor and water inlet festival, control box and water inlet festival hookup respectively fix the relative both ends at the motor, they three are coaxial hookup fixed, the controller sets up in the control box, the one end of screw rod is linked fixedly with the motor rotor mutually, the other end is pegged graft in locating the screw rod cover in the water inlet festival, water inlet festival is last to have water inlet and delivery port, the other end of screw rod is located between water inlet and the delivery port, its characterized in that, water level inductive probe passes through the wire and is connected with the controller electricity, the position that sets up of water level inductive probe tip is higher than the water inlet of water inlet festival.
2. The screw submersible pump of claim 1, wherein the end of the water level sensing probe is positioned flush with the water outlet.
3. The submersible screw pump according to claim 2, wherein the lead is fixed to the outer circumferential surface of the water intake section by a fastener, and the lead extends in the axial direction of the water intake section.
4. The screw type submersible pump according to claim 1, 2 or 3, wherein a hood-shaped water outlet ring is provided at the upper end of the water inlet joint, the water outlet is formed on the water outlet ring, an outward protruding ring is integrally formed on the outer circumferential surface of the screw sleeve, and the outward protruding ring is crimped between the water outlet ring and the opposite end surface of the water inlet joint to axially position the screw sleeve.
5. The screw type submersible pump according to claim 1, 2 or 3, wherein a pressure regulating film is arranged in the outer end of the control box, the axial section of the pressure regulating film is in a shape of a v 21274, and the open end of the pressure regulating film is connected with the outer end of the control box in a sealing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021632861.9U CN212959088U (en) | 2020-08-07 | 2020-08-07 | Screw type submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021632861.9U CN212959088U (en) | 2020-08-07 | 2020-08-07 | Screw type submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212959088U true CN212959088U (en) | 2021-04-13 |
Family
ID=75348565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021632861.9U Active CN212959088U (en) | 2020-08-07 | 2020-08-07 | Screw type submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212959088U (en) |
-
2020
- 2020-08-07 CN CN202021632861.9U patent/CN212959088U/en active Active
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