CN109723681B - Self-cleaning type deep-well pump - Google Patents
Self-cleaning type deep-well pump Download PDFInfo
- Publication number
- CN109723681B CN109723681B CN201811390955.7A CN201811390955A CN109723681B CN 109723681 B CN109723681 B CN 109723681B CN 201811390955 A CN201811390955 A CN 201811390955A CN 109723681 B CN109723681 B CN 109723681B
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- China
- Prior art keywords
- filter screen
- shell
- assembly
- well pump
- gear
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- Expired - Fee Related
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005291 magnetic effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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Abstract
The invention relates to a self-cleaning deep-well pump, which comprises a pump body assembly, a motor assembly and a filter screen arranged between the pump body assembly and the motor assembly, wherein the motor assembly comprises a first output shaft and a lower shell, the pump body assembly comprises an upper shell, and the self-cleaning deep-well pump is characterized in that: the power transmission device also comprises a transmission assembly connected with the first output shaft and a control assembly for controlling the transmission assembly to output or not output power; the transmission assembly comprises a second output end, a brush body assembly which surrounds the filter screen and can rotate relative to the filter screen is arranged on the inner side or the outer side of the filter screen, and the second output end drives the brush body assembly or the filter screen to rotate; the deep-well pump is driven by power of the deep-well pump, so that the deep-well pump can be located in a working area for a long time, and the advantage that the deep-well pump can be effectively cleaned without being taken out is achieved.
Description
Technical Field
The invention relates to a pump, in particular to a self-cleaning type deep-well pump.
Background
The deep well pump features that the motor and the pump are integrated into one body, and the deep well pump is immersed in underground water well for pumping and conveying water and is widely used in irrigation and drainage of farm land, industrial and mining enterprises, city water supply and drainage, sewage treatment, etc. At present, the filter screen device on the deep-well pump on the market filters silt in water for a long time, so that the filter screen is easy to accumulate silt and influences the normal work of the deep-well pump. However, the whole weight of the deep-well pump is generally larger, the working position is generally deeper relative to the ground, and the filter screen is not easy to clean.
Disclosure of Invention
The invention aims to provide a self-cleaning deep-well pump, which solves the problem that a filter screen of the deep-well pump is difficult to clean due to self weight and application environment, and achieves the effect of cleaning a working area without taking out the deep-well pump.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides a self-cleaning formula deep-well pump, includes pump body subassembly, motor element and locates the filter screen between the two, motor element includes first output shaft and lower casing, pump body subassembly includes casing, characterized by: the power transmission device also comprises a transmission assembly connected with the first output shaft and a control assembly for controlling the transmission assembly to output or not output power; the transmission assembly comprises an output end, a brush body assembly which surrounds the filter screen and can rotate relative to the filter screen is arranged on the inner side or the outer side of the filter screen, and the output end drives the brush body assembly or the filter screen to rotate.
By adopting the technical scheme, the power of the motor assembly can be transmitted to the rotatable filter screen or the brush body assembly through the connection of the transmission assembly, so that the rotatable filter screen or the brush body assembly can rotate relatively, and the brush body can remove the adhesive on the filter screen in the rotating process; the control of the control component ensures that the power of the motor component is not always transmitted to the filter screen or the brush body component, thereby avoiding the rapid abrasion of the filter screen due to transition brushing and ensuring that the service life of the brush body component or the filter screen can be far longer than the time when the filter screen is blocked; with this, the deep-well pump can be in a working area for a long time, and the filter screen can be effectively cleaned without taking out the deep-well pump.
The invention is further configured to: the filter screen is arranged on the inner side of the brush body assembly.
Through adopting above-mentioned technical scheme, the attachment on general filter screen will be more concentrate on the outside of filter screen, will brush the body subassembly and set up in the outside, no matter the filter screen initiative is rotated or the brush body subassembly initiative is rotated, all can form the stirring to the rivers in the filter screen outside to make the extension that the attachment that is cleared up can be quick scatter, reduce the secondary and adhere to the situation.
The invention is further configured to: the brush body assembly comprises a support and a brush roll which is rotatably connected to the support, and the rotating center of the brush roll is parallel to the rotating center of the filter screen or inclined at an angle within 30 degrees; the bracket is fixed on the upper shell or the lower shell.
By adopting the technical scheme, the friction and the abrasion can be reduced as much as possible in the cleaning process of the rotatably connected brush roller, the abrasion loss can be reduced to the minimum under the state that the two rotating centers are parallel, but the friction is increased to a certain extent due to the slight inclination, and the cleaning effect is enhanced; the filter screen rotating mode is relatively simple in structure and low in failure rate.
The invention is further configured to: the brush body assembly comprises a support and a brush roll connected to the support, the support is rotatably connected to the upper shell and the lower shell, one end of the filter screen in the axial direction is rotatably connected to the support, and the other end of the filter screen is fixed to the upper shell or the lower shell.
By adopting the technical scheme, the stirring effect of the brush body assembly rotating mode on the water at the outer side is better, and the quick diffusion of cleaned attachments is more facilitated; but the mounting requirements between the corresponding screen and the brush body assembly are relatively high.
The invention is further configured to: the transmission assembly comprises a shell fixed on the lower shell, a central shaft penetrating through the center of the turbine, a central gear coaxial with the central shaft, a planetary gear set meshed with the central gear and a gear ring meshed with the planetary gear set, and the gear ring is rotatably connected with the shell; the central gear is rotationally connected with the central shaft, a hollow shaft rotationally connected with the shell is axially and convexly arranged on the central gear, the first output shaft penetrates through the hollow shaft and is rotationally connected with the hollow shaft, the hollow shaft is used as an output end of the transmission assembly and is fixedly connected with the brush body assembly or the filter screen, and the planetary gear set is fixedly connected with the central shaft; the control assembly controls the limit gear ring to rotate.
By adopting the technical scheme, the central shaft is used as the input end of the torque, the central shaft drives the planetary gear set to rotate and transmit the torque to the gear ring and the central gear, and at the moment, if the gear ring is not locked, because the rotation of the filter screen or the brush body component can have certain resistance, the power of the planetary gear set cannot be transmitted to the central gear, namely, an idle state occurs, or the central gear can only slightly rotate; that is to say, through control assembly braking adjustment, can control whether filter screen or brush body subassembly rotate along with motor element's output, both realized providing clear power through the drive structure of deep-well pump itself, had to avoid lasting the wearing and tearing problem that the clearance leads to.
The invention is further configured to: planetary gear set includes that coaxial be fixed in the planet carrier of center pin, at least three rotatable connect in the planet wheel of the axial terminal surface of planet carrier and separate the safety ring in independent space along circumference with every planet wheel position, the planet wheel meshes with sun gear and ring gear respectively, the safety ring is fixed in the axial terminal surface of planet carrier, the planet carrier is the flange structure and wraps up in the partial circumferential surface of center pin with axial extension part, the rotatable axial extension part of cup jointing in the planet carrier of sun gear.
By adopting the technical scheme, the planet carrier and the central shaft are linked to cross over the central wheel, the whole planetary gear set can be used as an input part, and the planet carrier and the central shaft simultaneously drive the gear ring and the central gear to rotate, a plurality of planet wheels can have better stability in the transmission process, and more than three planet wheels, especially odd number planet wheels, can have very good centering effect; but this means that the interval between the planet wheel can be more close, and safety ring wherein can strengthen stability, and avoid some planet wheel to mesh with other planet wheel and produce the lock and die the destruction when falling off.
The invention is further configured to: the axial end face of the gear ring is provided with a plurality of braking holes along the circumferential direction, the control assembly comprises a pin shaft which is connected to the shell in a sliding mode along the axial direction and an electromagnet which forces the pin shaft to be inserted into or far away from the braking holes in a magnetic suction mode, and a magnet is fixed at the tail end of the pin shaft or the pin shaft is a magnet.
Through adopting above-mentioned technical scheme, realize braking simple structure through the grafting cooperation of round pin axle with the braking hole, be convenient for realize the installation in narrow and small space, can control the braking situation through the circular telegram situation of controlling different electro-magnets.
The invention is further configured to: the axial end face of the gear ring is provided with a plurality of braking holes along the circumferential direction, the control assembly comprises a pin shaft which is connected to the shell in a sliding mode along the axial direction, a spring which forces the pin shaft to be matched with the braking holes, and an electromagnet which sucks the pin shaft away from the braking holes in a magnetic suction mode, and the pin shaft is made of ferromagnetic materials.
By adopting the technical scheme, compared with the former one, the power-on of continuity is not required to be kept, the stability is high, the pin shaft can be integrally formed, and the structural strength is relatively high; but the magnetic force requirements for the electromagnet are high.
The invention is further configured to: the shell comprises a first shell and a second shell which can be axially split into two parts, the first shell is arranged on one side close to the motor assembly and is provided with a control assembly, the second shell is arranged on the other side and is rotatably connected with the hollow shaft, and the first output shaft penetrates through the hollow shaft and is rotatably connected with the hollow shaft.
By adopting the technical scheme, the axially split shell enables the gear set and the control assembly to be more conveniently mounted, and sealing is provided at the hole position of the connecting shaft.
In conclusion, the invention has the following beneficial effects:
1. the filter screen or the brush body assembly which can rotate relatively is adopted, and the deep-well pump is driven by the power of the deep-well pump, so that the deep-well pump can be in a working area for a long time, and the filter screen can be effectively cleaned without taking out the deep-well pump;
2. the regulating hole transmission component adopting the control component outputs or does not output power, so that the power of the motor component does not need to transmit the filter screen or the brush body component all the time, the filter screen is prevented from being rapidly worn due to transition, and the service life of the brush body component or the filter screen can be far longer than the time when the filter screen is blocked.
Drawings
FIG. 1 is a schematic view of the internal structure of a deep-well pump of example 1;
FIG. 2 is an internal structural view of the transmission assembly of embodiment 1;
FIG. 3 is an internal structural view of a control unit of embodiment 1;
FIG. 4 is an internal structural view of a control unit of embodiment 2;
fig. 5 is a schematic view of the internal structure of the deep-well pump of example 3.
In the figure, 1, a pump body assembly; 2. a motor assembly; 3. a transmission assembly; 4. a control component; 5. a brush body assembly; 6. filtering with a screen; 11. an upper housing; 12. an execution structure; 21. a first output shaft; 22. a lower housing; 31. a hollow shaft; 32. a housing; 321. a first shell; 322. a second shell; 33. a central shaft; 34. a sun gear; 35. a planetary gear set; 351. a safety ring; 352. a planet wheel; 353. a planet carrier; 36. a ring gear; 361. a brake hole; 41. an electromagnet; 42. a pin shaft; 43. a spring; 51. a support; 511. an inner ring body; 512. a connecting rod; 513. an outer ring body; 514. a roll shaft; 515. a stabilizing ring; 52. a brush roll; 61. and (6) a rotating frame.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: a self-cleaning type deep well pump is disclosed, as shown in figure 1, comprising a pump body component 1, a motor component 2, a filter screen 6 arranged between the two components, a brush body component 5 surrounding the outside of the filter screen 6, a transmission component 3 and a control component 4, the motor component 2 comprises a first output shaft 21 and a lower shell 22, the pump body component 1 comprises an upper shell 11 and an executing structure 12 (such as a centrifugal wheel and a screw rod) for pumping, the filter screen 6 is fixed on the upper shell 11, the brush body component 5 is rotationally connected with the upper shell 11 relatively and is driven by the transmission component 3 to rotate, the first output shaft 21 passes through the transmission component 3 to be connected with the executing structure 12 in the pump body component 1, and simultaneously drives the transmission structure in the transmission component 3, the brush body component 5 rotates together with the transmission component 3, and the control component 4 controls the transmission component 3 to output or not.
Referring to fig. 2, the transmission assembly 3 includes a housing 32 fixed to the lower case 22, a central shaft 33 penetrating through the center of the turbine, a sun gear 34 coaxial with the central shaft 33, a planetary gear set 35 engaged with the sun gear 34, and a ring gear 36 engaged with the planetary gear set 35; the outer shell 32 includes a first shell 321 and a second shell 322 that are axially separable into two parts, the first shell 321 is disposed on one side close to the motor assembly 2 and is provided with the control assembly 4, and the second shell 322 is disposed on the other side. The ring gear 36 is rotatably connected to the housing 32, and a plurality of stopper holes 361 are provided in an axial end surface of the ring gear 36 in the circumferential direction. The central gear 34 is rotatably connected with the central shaft 33, the central gear 34 is provided with a hollow shaft 31 which is rotatably connected with the shell 32 in an axially protruding manner, the hollow shaft 31 is rotatably connected with the shell 32, the first output shaft 21 penetrates through the hollow shaft 31 and is rotatably connected with the hollow shaft 31, and the hollow shaft 31 is fixedly connected with the brush body assembly 5 as the output end of the transmission assembly 3.
Referring to fig. 1, the brush assembly 5 includes a bracket 51 and a brush roller connected to the bracket 51, the bracket 51 includes an inner ring 511, an outer ring 513, a connecting rod 512 connected between the inner ring 511 and the outer ring 513, a roller shaft 514 extending in an axial direction of the outer ring 513, and a ring-shaped stabilizing ring 515 fixed to an end of the roller shaft 514, the stabilizing ring 515 is rotatably connected to the upper casing 11 and the lower casing 22, the brush roller 52 is rotatably connected to the roller shaft 514, a rotation center of the brush roller 52 is parallel to a rotation center of the screen 6, and the outer ring 513 is provided with a groove for rotatably fitting the screen 6.
Referring to FIG. 2, the planetary gear set 35 is fixedly connected with the central shaft 33; the planetary gear set 35 includes a carrier 353 coaxially fixed to the central shaft 33, at least three planetary gears 352 rotatably connected to an axial end surface of the carrier 353, and a safety ring 351 dividing a position where each planetary gear 352 is located into separate spaces along a circumferential direction, the planetary gears 352 are respectively engaged with the central gear 34 and the ring gear 36, the safety ring 351 is fixed to the axial end surface of the carrier 353, the carrier 353 is in a flange configuration and wraps a part of a circumferential surface of the central shaft 33 with an axial extension portion, and the central gear 34 is rotatably sleeved on the axial extension portion of the carrier 353.
Referring to fig. 3, the control assembly 4 controls the limit ring gear 36 to rotate. The control assembly 4 comprises a pin 42 slidably connected to the housing 32 in the axial direction, and an electromagnet 41 for magnetically urging the pin 42 to be inserted into or away from the braking hole 361, wherein a magnet is fixed at the end of the pin 42 or the pin 42 is a magnet.
The operation mode is as follows: (refer to FIGS. 1 and 2)
The filter screen 6 is not cleaned or slowly cleaned:
when the control unit 4 is released to lock the ring gear 36, the planetary gear set 35 rotates and the ring gear 36 rotates simultaneously due to a certain resistance to the rotation of the brush body unit 5, and the power cannot be transmitted to the sun gear 34 or only a very small part of the power is transmitted to the sun gear 34, which is represented by the fact that the brush roll 52 is stationary or rotates slowly relative to the screen 6.
During cleaning:
the control unit 4 is adjusted to lock the ring gear 36 relative to the housing 32 and the sun gear 34 is rotated by the brush unit 5 to begin cleaning the screen 6.
Example 2: as shown in fig. 4, the difference from embodiment 1 is that a plurality of braking holes 361 are circumferentially arranged on an axial end surface of the ring gear 36, the control component 4 includes a pin 42 slidably connected to the housing 32 in the axial direction, a spring 43 forcing the pin 42 to be engaged with the braking holes 361, and an electromagnet 41 attracting the pin 42 away from the braking holes 361 in a magnetic attraction manner, and the pin 42 is made of a ferromagnetic material.
Example 3: as shown in FIG. 5, the difference from embodiment 1 is that the brush member assembly 5 is stationary and the holder 51 is fixedly attached to the lower housing 22; the filter screen 6 rotates, and the inner side of the filter screen 6 is provided with a rotating frame 61; the hollow shaft 31 is fixedly connected to the rotating frame 61 as an output of the transmission assembly 3.
Example 4: the difference from embodiment 1 or 3 is that the screen 6 is provided outside the control unit 4.
Example 5: the difference from embodiment 1 or 3 is that the rotation center of the brush roller 52 is inclined at an angle of 30 ° or less to the rotation center of the screen 6. The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the present invention.
Claims (6)
1. The utility model provides a self-cleaning formula deep-well pump, includes pump body subassembly (1), motor element (2) and locates filter screen (6) between the two, motor element (2) include first output shaft (21) and lower casing (22), pump body subassembly (1) includes casing (11), characterized by: the power transmission device also comprises a transmission component (3) connected with the first output shaft (21) and a control component (4) for controlling the transmission component (3) to output or not output power; the transmission assembly (3) comprises an output end, a brush body assembly (5) which surrounds the filter screen (6) and can rotate relative to the filter screen (6) is arranged on the inner side or the outer side of the filter screen (6), and the output end drives the brush body assembly (5) or the filter screen (6) to rotate; the transmission assembly (3) comprises a shell (32) fixed on the lower shell (22), a central shaft (33) penetrating through the center of the turbine, a central gear (34) coaxial with the central shaft (33), a planetary gear set (35) meshed with the central gear (34) and a gear ring (36) meshed with the planetary gear set (35), wherein the gear ring (36) is rotatably connected with the shell (32); the central gear (34) is rotationally connected with a central shaft (33), a hollow shaft (31) rotationally connected with a shell (32) is axially and convexly arranged on the central gear (34), the first output shaft (21) penetrates through the hollow shaft (31) and is rotationally connected with the hollow shaft (31), the hollow shaft (31) is used as an output end of a transmission assembly (3) and is fixedly connected with a brush body assembly (5) or a filter screen (6), and the planetary gear set (35) is fixedly connected with the central shaft (33); the control component (4) controls and limits the rotation of the gear ring (36); the axial end face of ring gear (36) is provided with a plurality of braking holes (361) along circumference, control assembly (4) include along axial glide connect in shell (32) round pin axle (42), force round pin axle (42) to insert or keep away from electro-magnet (41) of braking hole (361) with the mode of magnetism, the end of round pin axle (42) is fixed with the magnet or round pin axle (42) are the magnet.
2. A self-cleaning deep well pump as claimed in claim 1, wherein: the filter screen (6) is arranged on the inner side of the brush body component (5).
3. A self-cleaning deep well pump according to claim 1 or 2, characterised in that: the filter screen (6) is rotationally connected with the upper shell (11) and the lower shell (22), the brush body assembly (5) comprises a bracket (51) and a brush roll (52) rotationally connected with the bracket (51), and the rotating center of the brush roll (52) is parallel to the rotating center of the filter screen (6) or inclined at an angle within 30 degrees; the bracket (51) is fixed to the upper casing (11) or the lower casing (22).
4. A self-cleaning deep well pump according to claim 1 or 2, characterised in that: the brush body assembly (5) comprises a support (51) and a brush roller (52) connected to the support (51), the support (51) is rotatably connected to the upper shell (11) and the lower shell (22), the filter screen (6) is rotatably connected to the support (51) along one axial end, and the other end of the filter screen is fixed to the upper shell (11) or the lower shell (22).
5. A self-cleaning deep well pump as claimed in claim 1, wherein: the planetary gear set (35) comprises a planetary carrier (353) fixed on a central shaft (33) coaxially, at least three planetary gears (352) rotatably connected to the axial end face of the planetary carrier (353), and a safety ring (351) for dividing the position of each planetary gear (352) into independent spaces along the circumferential direction, wherein the planetary gears (352) are respectively meshed with a central gear (34) and a gear ring (36), the safety ring (351) is fixed on the axial end face of the planetary carrier (353), the planetary carrier (353) is in a flange structure and wraps part of the circumferential face of the central shaft (33) in an axially extending mode, and the central gear (34) is rotatably sleeved on the axially extending portion of the planetary carrier (353).
6. A self-cleaning deep well pump as claimed in claim 1, wherein: the shell (32) comprises a first shell (321) and a second shell (322) which can be axially split into two parts, the first shell (321) is arranged on one side close to the motor assembly (2) and provided with a control assembly (4), the second shell (322) is arranged on the other side and rotatably connected with the hollow shaft (31), and the first output shaft (21) penetrates through the hollow shaft (31) and is rotatably connected with the hollow shaft (31) relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811390955.7A CN109723681B (en) | 2018-11-21 | 2018-11-21 | Self-cleaning type deep-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811390955.7A CN109723681B (en) | 2018-11-21 | 2018-11-21 | Self-cleaning type deep-well pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109723681A CN109723681A (en) | 2019-05-07 |
| CN109723681B true CN109723681B (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811390955.7A Expired - Fee Related CN109723681B (en) | 2018-11-21 | 2018-11-21 | Self-cleaning type deep-well pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN109723681B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302510A (en) * | 2019-11-29 | 2020-06-19 | 盐城集力劳务服务有限公司 | Sewage treatment plant for municipal works |
| CN117553101B (en) * | 2024-01-11 | 2024-03-22 | 常州市曼多林精密机械科技股份有限公司 | Planetary reducer with novel planet carrier |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204082578U (en) * | 2014-09-17 | 2015-01-07 | 青蛙泵业有限公司 | Self-cleaning filter screen submersible pump |
| CA2968941A1 (en) * | 2014-12-03 | 2016-06-09 | Ge Oil & Gas Esp, Inc. | Isolated thrust chamber for esp seal section |
| CN206346927U (en) * | 2016-11-14 | 2017-07-21 | 浙江博威水泵有限公司 | A kind of automated cleaning deep well pump |
| CN206503787U (en) * | 2017-01-22 | 2017-09-19 | 台州金亿龙泵业有限公司 | Well immersible pump |
| CN207349117U (en) * | 2017-09-19 | 2018-05-11 | 艾金清 | A kind of high-efficiency submersible pump |
| CN208123114U (en) * | 2018-04-11 | 2018-11-20 | 湖南湘衡重科制造有限责任公司 | A kind of anti-clogging slush pump |
-
2018
- 2018-11-21 CN CN201811390955.7A patent/CN109723681B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204082578U (en) * | 2014-09-17 | 2015-01-07 | 青蛙泵业有限公司 | Self-cleaning filter screen submersible pump |
| CA2968941A1 (en) * | 2014-12-03 | 2016-06-09 | Ge Oil & Gas Esp, Inc. | Isolated thrust chamber for esp seal section |
| CN206346927U (en) * | 2016-11-14 | 2017-07-21 | 浙江博威水泵有限公司 | A kind of automated cleaning deep well pump |
| CN206503787U (en) * | 2017-01-22 | 2017-09-19 | 台州金亿龙泵业有限公司 | Well immersible pump |
| CN207349117U (en) * | 2017-09-19 | 2018-05-11 | 艾金清 | A kind of high-efficiency submersible pump |
| CN208123114U (en) * | 2018-04-11 | 2018-11-20 | 湖南湘衡重科制造有限责任公司 | A kind of anti-clogging slush pump |
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| Publication number | Publication date |
|---|---|
| CN109723681A (en) | 2019-05-07 |
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Granted publication date: 20200605 |