CN109737091B - Deep well pump and positioning device thereof - Google Patents
Deep well pump and positioning device thereof Download PDFInfo
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- CN109737091B CN109737091B CN201811390967.XA CN201811390967A CN109737091B CN 109737091 B CN109737091 B CN 109737091B CN 201811390967 A CN201811390967 A CN 201811390967A CN 109737091 B CN109737091 B CN 109737091B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000005086 pumping Methods 0.000 claims description 19
- 230000005291 magnetic effect Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 4
- 239000003302 ferromagnetic material Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 description 5
- 230000008093 supporting effect Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention discloses a deep-well pump and a positioning device thereof, relating to the technical field of water pumps, and the technical scheme is as follows: the positioning device comprises a frame body which is sleeved at the bottom of the deep-well pump, a plurality of fin parts and torsion springs which drive the fin parts to expand along the radial direction of the frame body are hinged on the frame body along the circumferential direction of the deep-well pump, clamping blocks are arranged on the fin parts, clamping grooves for clamping the clamping blocks are arranged on the frame body, and when the fin parts are clamped with the clamping grooves through the clamping blocks, the fin parts are tightly attached to the side wall of the frame body; the tip that the support body deviates from wing portion is provided with switch portion, is provided with the drive block corresponding to the draw-in groove in the switch portion, and when switch portion moved to the support body direction, the drive block ordered about the fixture block and removed and break away from the draw-in groove to expand wing portion. The deep well pump is combined with the positioning device, so that the deep well pump is not easy to suck soil or fall down when working, the working reliability is high, the deep well pump is not easy to damage, and the service life is longer; the fin part is not easy to spread spontaneously before the positioning device contacts the well bottom, and the reliability is high.
Description
Technical Field
The invention relates to the technical field of water pumps, in particular to a deep-well pump and a positioning device thereof.
Background
The deep well pump is one kind of submersible pump, and is specially used for pumping water from deep well. Compared with a common submersible pump, the deep-well pump has a slender shape, more impeller stages and higher lift.
The prior Chinese utility model with the publication number of CN204024998U discloses a deep-well pump, which comprises a pump body, wherein the pump body comprises a motor part and a water pumping part, the motor part is fixedly connected with the water pumping part, and a suction inlet of the pump body is positioned between the motor part and the water pumping part. When the deep-well pump is put into a well to work, the deep-well pump needs to be kept in a vertical state as much as possible, and the motor is located below the water pumping part.
The above prior art solutions have the following drawbacks: when the deep well pump is placed into a deep well, if a mud layer at the bottom of the deep well is too thick and loose, the deep well pump is easy to sink into the mud layer due to vibration generated during working, and the risk that the mud layer sinks beyond a suction inlet exists; on the other hand, when the deep well is wide, the long and thin deep well pump tends to fall down, and the suction port is in direct contact with the mud layer. Both of these conditions result in a large amount of mud being sucked into the pump body, which can easily cause the deep well pump to be damaged.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the positioning device which is specially used for the deep well pump and is not easy to suck soil and damage when the deep well pump works.
The technical purpose of the invention is realized by the following technical scheme: a positioning device comprises a frame body sleeved at the bottom of a deep well pump, wherein a plurality of fin parts and torsion springs for driving the fin parts to expand along the radial direction of the frame body are hinged to the frame body along the circumferential direction of the deep well pump, clamping blocks are arranged on the fin parts, clamping grooves for clamping the clamping blocks are formed in the frame body, and when the fin parts are clamped with the clamping grooves through the clamping blocks, the fin parts are tightly attached to the side walls of the frame body;
the tip that the support body deviates from wing portion is provided with switch portion, switch portion slides along the length direction of support body and sets up on the support body, be provided with the drive block corresponding to the draw-in groove in the switch portion, work as when switch portion removes to the support body direction, the drive block orders about the fixture block and removes and break away from the draw-in groove to launch wing portion.
Through above-mentioned technical scheme, establish the support body cover and be fixed in the bottom of deep-well pump and accomplish the installation, each wing portion is predetermine and is in the state of next to the support body. When the deep-well pump works, the deep-well pump is put into a well and is gradually lifted downwards. When the deep-well pump touches the well bottom (or a mud layer at the well bottom) through the positioning device, the switch part is pressed to move towards the direction of the frame body, the switch part pushes the clamping block away from the clamping groove through the driving block, then each fin part is unfolded under the elastic action of the torsion spring, and the rotation of each fin part is stopped when each fin part is unfolded to be in contact with the well wall; if the width in the well is large, the wings can be rotated to the fully deployed extreme position. When the deep-well pump is operated, even if the deep-well pump falls into a mud layer due to vibration, the fin plates in the unfolded state greatly increase the contact area with the surface of the mud layer, so that the deep-well pump is prevented from further sinking, and the mud is not easy to be sucked into the suction inlet. When the deep-well pump is laid down, the unfolded fin part can play a supporting role, the deep-well pump is prevented from being laid down completely, and the suction inlet cannot be in direct contact with a mud layer. To sum up, the combination of deep-well pump and this positioner, the difficult earth that inhales of deep-well pump during operation, operational reliability is high, and the deep-well pump is not fragile, has longer life.
Preferably, a spring is arranged between the switch part and the frame body, and the switch part is driven by the elasticity of the spring to move towards the direction deviating from the frame body.
Through above-mentioned technical scheme, the elasticity of spring orders about switch portion and removes to the direction that deviates from the support body, is in the in-process of putting into the well when the immersible pump, and switch portion is difficult for spontaneous removal touching drive division, prevents that the wing from expandes too early, has promoted this positioner's reliability.
Preferably, the size of the switch part along the radial direction of the frame body is smaller than that of the frame body.
Through above-mentioned technical scheme, before deep-well pump touching shaft bottom, the support body is through bottom outer fringe and the collision of wall of a well, hard thing to a great extent, and the wall of a well or other hard things are difficult for touching switch portion, prevent that the wing from expandes too early.
Preferably, the support body deviates from the tip outer fringe of wing portion and is provided with the guard edge, works as when the wing portion passes through fixture block and draw-in groove joint, the radial extension of guard edge support body extends to outside the wing portion.
Through the technical scheme, before the deep well pump touches the well bottom, the frame body is collided with the well wall and hard objects to a great extent through the protective edge, the lower end of the fin part is protected by the protective edge, and the fin part is not easy to be damaged due to collision.
Preferably, the outer edge of the end part of the frame body, which deviates from the switch part, is provided with a limiting edge, and when the fin part rotates to be perpendicular to the axis of the frame body, the limiting edge abuts against the fin part to limit the fin part to continue rotating.
Through above-mentioned technical scheme, when the length axis of wing portion rotated to perpendicular with the support body axis, thereby spacing limit offsets with the wing portion and restricts the wing portion and continue to rotate, and spacing limit is used for restricting the pivoted extreme angle of wing portion, prevents that the wing portion from rotating excessively.
Preferably, the fin part comprises a connecting rod hinged with the frame body and a fin plate fixed on the connecting rod, and the clamping block is positioned on the connecting rod; when the fin part is clamped with the clamping groove through the clamping block, the fin plates are arc-shaped, and the plurality of fin plates are combined into a cylindrical shape and abut against the frame body.
Through above-mentioned technical scheme, a plurality of fin boards can make up into cylindricly and close to the support body, and this positioner's radial dimension is less this moment, and compact structure is difficult for causing the whereabouts of deep-well pump to block when this positioner gets into the aquatic along with the deep-well pump, and this positioner is difficult for dying on the wall of a well.
Preferably, the fin plate is an elastic plate, the elastic force of the fin plate drives the fin plate to keep a plane state, the frame body is made of ferromagnetic materials, the fin plate is provided with a magnet, when the fin part is clamped with the clamping groove through the clamping block, the magnet is attached to the frame body through magnetic force, and the fin plate is driven by the magnetic force to be bent to be in an arc state close to the frame body.
Through above-mentioned technical scheme, when the wing portion passes through fixture block and draw-in groove joint, personnel can order about the finned plate through the hand and bend to the support body direction, make magnet and support body contact, and magnet passes through magnetic force and attaches on the support body, releases the hand this moment, and the elasticity of finned plate is not enough to overcome the magnetic force of magnet, then the finned plate keeps the arc state. When the frame body touches the shaft bottom to enable the fin part to be unfolded, the fin plate is restored to the flat plate state under the action of the elastic force of the fin plate, the fin plate in the flat plate state can play a better supporting effect, and the fin plate is not prone to being sunk into a mud layer compared with the arc plate.
A second object of the present invention is to provide a deep well pump which is not easy to be damaged by sucking mud when the deep well pump is operated.
The technical purpose of the invention is realized by the following technical scheme: the deep well pump comprises a motor part and a water pumping part which are fixedly connected, wherein a suction inlet for sucking water is arranged between the motor part and the water pumping part, a discharge port for discharging water is arranged at the end part of the water pumping part, which deviates from the motor part, and the deep well pump further comprises the positioning device, and the end part of the motor part, which deviates from the water pumping part, is fixedly sleeved on a frame body.
Through above-mentioned technical scheme, immersible pump and above-mentioned positioner combine as an organic wholely, and the deep well pump is difficult for inhaling earth during operation, and operational reliability is high, and the deep well pump is not fragile.
Preferably, the hinge joint of the wing part and the frame body is positioned at the position of the motor part close to the suction port.
Through the technical scheme, after the motor part is completely sunk into the mud layer, the frame body is abutted against the surface of the mud layer through the completely unfolded fin part so as to limit the deep-well pump from further sinking, and at the moment, the suction inlet is positioned at a position close to the surface of the mud layer, so that the deep-well pump can pump water more thoroughly; and the unfolded wing parts can press the mud layer, so that the mud is not easy to float and enter the suction port.
In summary, compared with the prior art, the beneficial effects of the invention are as follows:
1. the deep well pump is combined with the positioning device, so that the deep well pump is not easy to suck soil when working, has high working reliability, is not easy to damage and has longer service life;
2. the fin part is not easy to spread spontaneously before the positioning device contacts the well bottom, and the reliability is high;
3. before the wing portion expandes, positioner's radial size is less, compact structure, and this positioner is difficult for the card to die on the wall of a well when getting into the aquatic along with the deep-well pump.
Drawings
FIG. 1 is a mating view of a positioning device and a deep well pump;
FIG. 2 is a perspective view of a positioning apparatus according to a first embodiment;
FIG. 3 is a perspective view of the positioning device of the first embodiment from a second perspective, mainly highlighting the position of the magnets;
FIG. 4 is a partial cross-sectional view of the positioning device of the first embodiment, mainly illustrating the structure of the switch portion and the driving block;
FIG. 5 is a schematic view of the deep-well pump and positioning device in a first operating state;
FIG. 6 is a schematic view of the deep-well pump and the positioning device in a second operating state;
fig. 7 is a perspective view of the deep-well pump of the second embodiment.
In the figure, 1, a frame body; 2. a wing portion; 11. a resisting plate; 12. a limiting edge; 13. protecting the edge; 21. a connecting rod; 22. a fin plate; 3. a torsion spring; 211. a clamping block; 14. a card slot; 221. a magnet; 15. a switch section; 4. a spring; 151. a drive block; 51. a motor section; 52. a water pumping part; 53. a suction inlet; 54. and (7) discharging the air.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, the positioning device disclosed by the invention is specially used for a deep well pump, and comprises a frame body 1 which is sleeved at the bottom of the deep well pump, wherein a plurality of wing parts 2 are hinged on the frame body 1 along the circumferential direction of the deep well pump, and the frame body 1 is made of iron.
Referring to fig. 1 and 2, the frame body 1 is generally cylindrical, the frame body 1 includes a support plate 11 abutting against the bottom end of the deep-well pump, the two axial ends of the frame body 1 are respectively fixed with a limit edge 12 and a protection edge 13, wherein the limit edge 12 is located at the end of the frame body 1 close to the suction port 53, the protection edge 13 is located at the end of the frame body 1 far away from the suction port 53, and the limit edge 12 and the protection edge 13 both extend outwards along the radial direction of the frame body 1 to form a ring shape.
The quantity of wing portion 2 is four, and four wing portions 2 are circumference symmetric distribution about the axis of support body 1, and wing portion 2 includes connecting rod 21, fixes the fin 22 on connecting rod 21, and connecting rod 21 articulates on spacing limit 12 through the tip, and wing portion 2 can rotate around articulated department, switches and hugs closely support body 1, follows two kinds of states that support body 1 radially outwards expanded. The hinge joint of the connecting rod 21 and the limiting edge 12 is provided with a torsion spring 3, and the elastic direction of the torsion spring 3 is the direction for driving the fin part 2 to expand along the radial direction of the frame body 1. When the length axis of the fin part 2 rotates to be vertical to the axis of the frame body 1, the limiting edge 12 abuts against the connecting rod 21 so as to limit the fin part 2 to rotate continuously, and the limiting edge 12 limits the maximum rotation angle of the fin part 2 to be ninety degrees.
Referring to fig. 2 and 3, the connecting rod 21 penetrates the fin plate 22 from the thickness side wall of the fin plate 22 and is fixed with the fin plate 22, and the connecting rod 21 is located in the middle of the plate surface of the fin plate 22. The fin 22 is an elastic plate made of polyurethane, and under normal conditions, the fin 22 is in a flat state under the action of self elasticity, and the fin 22 can be bent under the action of external force. A clamping block 211 is fixed at the end of the connecting rod 21 away from the limiting edge 12, and the clamping block 211 protrudes in a wedge shape towards the frame body 1; a clamping groove 14 for clamping the clamping block 211 is formed in the frame body 1; when wing 2 rotated to guard edge 13 direction, fixture block 211 penetrated draw-in groove 14 through elastic deformation, then fixture block 211 and draw-in groove 14 colluded and connect the fixed of accomplishing wing plate 22 and support body 1, and wing 2 was in the position of hugging closely support body 1 lateral wall this moment.
A plurality of magnets 221 are fixed on the end surface of the fin plate 22 facing the frame body 1, and the plurality of magnets 221 are uniformly distributed at the positions of two sides of the connecting rod 21 close to the edge of the wall fin plate 22; when the fin portion 2 is clamped with the clamping groove 14 through the clamping block 211, a person can drive the fin plate 22 to bend towards the direction of the frame body 1 by hands, so that the magnet 221 contacts with the frame body 1, the magnet 221 is attached to the frame body 1 through magnetic force, the hands are released, the elastic force of the fin plate 22 is insufficient to overcome the magnetic force of the magnet 221, the fin plate 22 keeps an arc state, and the four fin plates 22 are combined into a cylindrical shape and tightly abut against the frame body 1 (refer to fig. 1). This positioner's radial dimension is less this moment, compact structure, and when this positioner got into aquatic along with the deep-well pump, it was difficult for causing the whereabouts of deep-well pump to block, and this positioner is difficult for the card to die on the wall of a well. When the fin part 2 is clamped with the clamping groove 14 through the clamping block 211, the protective edge 13 extends to the outside of the fin part 2 along the radial direction of the frame body 1.
Referring to fig. 3 and 4, the end of the frame body 1 departing from the wing part 2 is provided with a switch part 15, the switch part 15 is disc-shaped, the switch part 15 is smaller than the frame body 1 along the radial dimension of the frame body 1, and the switch part 15 is arranged on the frame body 1 along the axial sliding of the frame body 1. A spring 4 is arranged between the switch part 15 and the frame body 1, two ends of the spring 4 are respectively welded and fixed on the switch part 15 and the frame body 1, and the switch part 15 is driven by the elastic force of the spring 4 to move in the direction away from the frame body 1. The switch part 15 is provided with a driving block 151 corresponding to the locking groove 14, when the switch part 15 moves towards the frame body 1, the driving block 151 abuts against the locking block 211, so as to drive the locking block 211 to move away from the locking groove 14, and thus the wing part 2 is unfolded.
The working conditions of the positioning device are as follows: the installation is accomplished to the bottom of locating the deep-well pump with support body 1 cover, and support body 1 and deep-well pump fasten through interference fit, and both are difficult for spontaneous separation, and each wing portion 2 is predetermine and is in the state near support body 1. When the deep-well pump works, the deep-well pump is put into a well and is gradually lifted downwards; because the radial size of switch portion 15 along support body 1 is less than support body 1, then before deep-well pump touching the shaft bottom, support body 1 to a great extent through the protective edge 13 with the wall of a well, hard object collision, the wall of a well or other hard objects are difficult for touching switch portion 15, and protective edge 13 is with the lower extreme protection of wing portion 2, wing portion 2 is difficult for damaging because of the collision.
Referring to fig. 5, when the deep well pump touches the well bottom (or the mud layer at the well bottom) through the positioning device, the switch part 15 is pressed to move towards the direction of the frame body 1, the switch part 15 pushes the clamping block 211 away from the clamping groove 14 through the driving block 151, then each fin part 2 is unfolded under the elastic action of the torsion spring 3, and each fin part 2 stops rotating when being unfolded to contact with the well wall. Referring to fig. 6, if the width in the well is large, each fin 2 can be rotated to the fully deployed extreme position, i.e. all fins 2 are in the same plane. When each wing portion 2 is unfolded, the fin plate 22 is restored to the flat plate state under the action of the elasticity of the fin plate 22, the fin plate 22 in the flat plate state can play a better supporting effect, and is not easy to sink into a mud layer compared with an arc-shaped plate.
When the deep-well pump is operated, even if the deep-well pump falls into a mud layer due to vibration, the fin plate 22 in the unfolded state greatly increases the contact area with the surface of the mud layer, and prevents the deep-well pump from further falling, so that the mud is not easily sucked into the suction port 53. When the deep-well pump is laid down, the unfolded fin part 2 can play a supporting role, the deep-well pump is prevented from being laid down completely, and the suction inlet 53 cannot be in direct contact with a mud layer. To sum up, the combination of deep-well pump and this positioner, the difficult earth that inhales of deep-well pump during operation, operational reliability is high, and the deep-well pump is not fragile, has longer life.
After pumping water, a person lifts the deep-well pump upwards, and when the fins 2 are in contact with the well wall, the fins 2 can rotate downwards around the hinged parts in a self-adaptive mode, so that the deep-well pump and the positioning device can be taken out of the well smoothly.
Example two:
referring to fig. 7, the deep well pump comprises a motor part 51 and a water pumping part 52 which are fixedly connected, a suction port 53 for sucking water is arranged between the motor part 51 and the water pumping part 52, a discharge port 54 for discharging water is arranged at the end part of the water pumping part 52 departing from the motor part 51, the deep well pump also comprises the positioning device, and the frame body 1 is sleeved and fixed at the end part of the motor part 51 departing from the water pumping part 52.
The hinge joint of the wing part 2 and the frame body 1 is positioned at the position of the motor part 51 close to the suction opening 53. With the arrangement, when the motor part 51 is completely sunk into the mud layer, the frame body 1 is abutted against the surface of the mud layer through the completely unfolded fin part 2 so as to limit the deep-well pump from further sinking, and the suction port 53 is positioned at a position close to the surface of the mud layer at the moment, so that the deep-well pump can pump water more thoroughly; and the unfolded wing parts 2 can press the mud layer, so that the mud is not easy to float and enter the suction inlet 53.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. A kind of locating device, its characteristic is: the deep well pump frame comprises a frame body (1) which is used for being sleeved at the bottom of a deep well pump, wherein a plurality of fin parts (2) and torsion springs (3) which drive the fin parts (2) to radially expand along the frame body (1) are hinged to the frame body (1) along the circumferential direction of the deep well pump, clamping blocks (211) are arranged on the fin parts (2), clamping grooves (14) for clamping the clamping blocks (211) are formed in the frame body (1), and when the fin parts (2) are clamped with the clamping grooves (14) through the clamping blocks (211), the fin parts (2) are tightly attached to the side walls of the frame body (1);
the end part, away from the wing part (2), of the frame body (1) is provided with a switch part (15), the switch part (15) is arranged on the frame body (1) in a sliding mode along the length direction of the frame body (1), a driving block (151) is arranged on the switch part (15) corresponding to the clamping groove (14), and when the switch part (15) moves towards the frame body (1), the driving block (151) drives the clamping block (211) to move away from the clamping groove (14), so that the wing part (2) is unfolded;
the outer edge of the end part of the frame body (1) departing from the switch part (15) is provided with a limiting edge (12), and when the fin part (2) rotates to be vertical to the axis of the frame body (1), the limiting edge (12) is abutted against the fin part (2) so as to limit the fin part (2) to continue rotating; the limiting edge (12) limits the maximum rotation angle of the fin part (2) to ninety degrees.
2. The positioning device of claim 1, wherein: a spring (4) is arranged between the switch part (15) and the frame body (1), and the switch part (15) is driven to move towards the direction away from the frame body (1) by the elastic force of the spring (4).
3. The positioning device of claim 2, wherein: the switch part (15) is smaller than the frame body (1) along the radial dimension of the frame body (1).
4. The positioning device of claim 1, wherein: the support body (1) deviates from the tip outer fringe of wing portion (2) and is provided with guard edge (13), works as when wing portion (2) pass through fixture block (211) and draw-in groove (14) joint, radial extension to the wing portion (2) outside along support body (1) guard edge (13).
5. The positioning device of claim 1, wherein: the fin part (2) comprises a connecting rod (21) hinged with the frame body (1) and a fin plate (22) fixed on the connecting rod (21), and the clamping block (211) is positioned on the connecting rod (21); when the fin part (2) is clamped with the clamping groove (14) through the clamping block (211), the fin plates (22) are arc-shaped, and the plurality of fin plates (22) are combined into a cylindrical shape and tightly abut against the frame body (1).
6. The positioning device of claim 5, wherein: the fin plate (22) is an elastic plate, the elastic force of the fin plate (22) drives the fin plate to keep a plane state, the frame body (1) is made of a ferromagnetic material, a magnet (221) is arranged on the fin plate (22), when the fin part (2) is clamped with the clamping groove (14) through the clamping block (211), the magnet (221) is attached to the frame body (1) through magnetic force, and the fin plate (22) is driven by the magnetic force to be bent into an arc state close to the frame body (1).
7. The deep well pump comprises a motor part (51) and a water pumping part (52) which are fixedly connected, wherein a suction inlet (53) for sucking water is arranged between the motor part (51) and the water pumping part (52), and a discharge outlet (54) for discharging water is arranged at the end part of the water pumping part (52) departing from the motor part (51), and is characterized in that: the positioning device further comprises a positioning device as claimed in any one of claims 1 to 6, wherein the frame body (1) is sleeved and fixed on the end part of the motor part (51) away from the water pumping part (52).
8. The deep well pump of claim 7, wherein: the hinged part of the fin part (2) and the frame body (1) is positioned at the position where the motor part (51) is close to the suction inlet (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811390967.XA CN109737091B (en) | 2018-11-21 | 2018-11-21 | Deep well pump and positioning device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811390967.XA CN109737091B (en) | 2018-11-21 | 2018-11-21 | Deep well pump and positioning device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109737091A CN109737091A (en) | 2019-05-10 |
| CN109737091B true CN109737091B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811390967.XA Expired - Fee Related CN109737091B (en) | 2018-11-21 | 2018-11-21 | Deep well pump and positioning device thereof |
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| CN (1) | CN109737091B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110374929B (en) * | 2019-08-28 | 2024-05-31 | 浙江大元泵业股份有限公司 | Anti-rotation guide vane string of deep well pump |
| CN116771688B (en) * | 2023-08-18 | 2023-11-14 | 利欧集团湖南泵业有限公司 | Axial flow water pump |
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| CN204140347U (en) * | 2014-10-11 | 2015-02-04 | 温岭市三星水泵厂 | A kind of deep-well pump |
| CN204152857U (en) * | 2014-10-11 | 2015-02-11 | 温岭市三星水泵厂 | A kind of deep-well pump |
| CN204419528U (en) * | 2015-01-22 | 2015-06-24 | 台州市日达泵业有限公司 | There is the firm formula deep-well pump of Reduction of Students' Study Load function |
| CN206582133U (en) * | 2017-02-10 | 2017-10-24 | 台州市高典机电有限公司 | Deep well pump |
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| CN109737091A (en) | 2019-05-10 |
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