CN213775703U - Automatic cleaning non-clogging pump - Google Patents
Automatic cleaning non-clogging pump Download PDFInfo
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- CN213775703U CN213775703U CN202022621853.0U CN202022621853U CN213775703U CN 213775703 U CN213775703 U CN 213775703U CN 202022621853 U CN202022621853 U CN 202022621853U CN 213775703 U CN213775703 U CN 213775703U
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Abstract
The utility model discloses an automatic wash non-clogging pump, it includes that the impeller draws water subassembly, filter screen and the pump body, the filter screen sets up on the pump body, the impeller draws water the subassembly and includes backward flow backwash impeller and motor, backward flow backwash impeller sets up in the pump body and backward flow backwash impeller be equipped with the axle sleeve of the transmission shaft cooperation installation of motor, the transmission shaft is connected with backward flow backwash impeller transmission, is equipped with the reposition of redundant personnel chamber between axle sleeve and the transmission shaft, be equipped with on the axle sleeve with the inboard jet orifice of intercommunication reposition of redundant personnel chamber and filter screen, the pump body is inside to be divided into low-pressure region and high-pressure region by backward flow backwash impeller, and the impeller is drawn water and is equipped with the backward flow injection pipe on the subassembly, backward flow injection pipe intercommunication high-pressure region and reposition of redundant personnel chamber. The utility model discloses the non-clogging pump of self-cleaning who obtains can guarantee that the washing water does not contain the debris that can lead to the secondary to block up, also need not special control flap to carry out special back flush simultaneously, and the single that has lengthened the water pump is long in service, has improved the work efficiency who draws water.
Description
Technical Field
The utility model relates to a water pump, especially a self-cleaning unblock pump.
Background
When the existing water pump pumps water in natural rivers, ponds or other low-lying areas, silt, leaves and aquatic weeds in water can be accumulated on the outer surface of a filter screen of the water pump along with water flow, and the water inlet of the filter screen and the water pump can be blocked due to long-time water pumping, so that the normal use of the water pump is influenced; in order to solve the problem, in the prior art, except for the traditional method of reusing after shutdown and disassembly, valves such as an electromagnetic valve and a one-way valve are used for changing the direction of water flow in a water pump, and the water pump is cleaned from the inside, the Chinese patent 201420533453.6 discloses a method of cleaning a filter screen by using a cone valve to introduce external water flow to be matched with a brush arranged on the inner side of the filter screen, however, once the cone valve is blocked, the structure cannot play a corresponding cleaning role, and when sewage is treated, the sewage is directly introduced to clean the filter screen from the inside, and secondary blockage is easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reliable effectual self-cleaning unblocks pump in order to solve above-mentioned prior art not enough.
In order to realize above-mentioned purpose, the utility model discloses an automatic cleaning non-clogging pump, it includes that the impeller draws water subassembly, filter screen and the pump body, the filter screen sets up on the pump body, the impeller draws water the subassembly and includes backward flow backwash impeller and motor, backward flow backwash impeller sets up in the pump body and backward flow backwash impeller on be equipped with the axle sleeve of installing with the transmission shaft cooperation of motor, the transmission shaft stretches into in the pump body and is connected with backward flow backwash impeller transmission, be equipped with the reposition of redundant personnel chamber between axle sleeve and the transmission shaft, be equipped with on the axle sleeve and communicate reposition of redundant personnel chamber and the inboard jet orifice of filter screen, the pump body is inside to be divided into low-pressure region and high-pressure region by backward flow backwash impeller, the impeller is drawn water and is equipped with the backward flow injection pipe on the subassembly, backward flow injection pipe intercommunication high-pressure region and reposition of redundant personnel chamber.
In order to facilitate replacement, the shaft sleeve is provided with a shaft hole matched with the transmission shaft, and the backflow jet pipe can be a bypass hole arranged beside the shaft hole.
In order to facilitate processing, a semicircular groove is formed in the contact surface of the shaft sleeve and the transmission shaft, and the semicircular groove and the surface of the transmission shaft can form the backflow jet pipe.
The backflow jet pipe is arranged in the transmission shaft, and the backflow jet pipe can respectively communicate with the water inlet hole and the water outlet hole of the high-pressure area and the diversion cavity along the radial direction of the transmission shaft, and communicate with the connecting hole of the water inlet hole and the water outlet hole along the axial direction of the transmission shaft.
In order to ensure reliable transmission, the transmission shaft comprises a special-shaped shaft section which is in transmission connection with the backflow backwashing impeller.
In order to meet different lift requirements, a secondary impeller is also connected to the transmission shaft in a transmission manner, a guide plate assembly is arranged between the secondary impeller and the backflow backwashing impeller, and the guide plate assembly is arranged in the pump body; in actual manufacturing, the secondary impeller and the guide plate assembly can be arranged in a plurality of groups in the pump body according to the requirement of the lift.
In order to ensure that the filter screen can be fully cleaned by the flushing water flow, the aperture of the jet hole is larger than that of the filter screen hole on the filter screen.
The utility model discloses the non-clogging pump of self-cleaning who obtains utilizes the rivers after the impeller pressurization, and it is clean to carry out in step to the filter screen simultaneously drawing water, can guarantee that the washing water does not contain the debris that can lead to the secondary to block up, also need not special control flap to carry out special back flush simultaneously, and the single operation that has lengthened the water pump is long, has improved the work efficiency who draws water.
Drawings
FIG. 1 is a schematic structural view of an embodiment 1 of the self-cleaning non-clogging pump of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a schematic structural view of embodiment 2 of the self-cleaning non-clogging pump of the present invention;
FIG. 4 is an enlarged schematic view at B in FIG. 3;
FIG. 5 is a cross-sectional view C-C of FIG. 4;
FIG. 6 is a schematic structural view of embodiment 3 of the self-cleaning non-clogging pump of the present invention;
FIG. 7 is an enlarged schematic view at D of FIG. 6;
FIG. 8 is a cross-sectional view E-E of FIG. 7;
FIG. 9 is a schematic structural view of embodiment 4 of the self-cleaning non-clogging pump of the present invention;
fig. 10 is an enlarged schematic view at F in fig. 9.
In the figure: the device comprises a filter screen 1, a pump body 2, a backflow backwashing impeller 3, a motor 4, a backflow injection pipe 5, a secondary impeller 6, a flow guide plate assembly 7, a low-pressure region 20, a high-pressure region 21, a shaft sleeve 30, a flow distribution cavity 31, a jet hole 32, a shaft hole 33, a transmission shaft 40, a special-shaped shaft section 41, a water inlet 50, a connecting hole 51, a water outlet 52 and a semicircular groove 300.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1:
the self-cleaning non-clogging pump described in this embodiment, as shown in fig. 1 and 2, comprises an impeller pumping assembly, a filter screen 1 and a pump body 2, the filter screen 1 is arranged on the pump body 2, the impeller pumping component comprises a back-flow back-washing impeller 3 and a motor 4, the backflow backwashing impeller 3 is arranged in the pump body 2, a shaft sleeve 30 which is matched with a transmission shaft 40 of the motor 4 is arranged on the backflow backwashing impeller 3, the transmission shaft 40 extends into the pump body 2 and is in transmission connection with the back-flow back-washing impeller 3, a diversion cavity 31 is arranged between the shaft sleeve 30 and the transmission shaft 40, the shaft sleeve 30 is provided with a jet hole 32 communicating the shunt cavity 31 and the inner side of the filter screen 1, the inside of the pump body 2 is divided into a low pressure area 20 and a high pressure area 21 by the back-flow back-washing impeller 3, and the impeller pumping assembly is provided with a backflow injection pipe 5, and the backflow injection pipe 5 is communicated with the high-pressure area 21 and the flow dividing cavity 31.
For the convenience of replacement, as shown in fig. 2, the shaft sleeve 30 is provided with a shaft hole 33 engaged with the transmission shaft 40, and the backflow injection pipe 5 may be a bypass hole provided beside the shaft hole 33.
In the actual working process, after external water is filtered by the filter screen 1, external water enters the high-pressure area 21 from the low-pressure area 20 under the action of pressure of the impeller, most of the water in the high-pressure area 21 flows to the water outlet arranged on the pump body 2, a small part of the water enters the backflow injection pipe 5, high-pressure water entering the backflow injection pipe 5 enters the diversion cavity 31 under the driving of the pressure difference between the high-pressure area 21 and the low-pressure area 20 and is sprayed to the filter screen 1 through the spray hole 32, and jet flow sprayed from the spray hole 32 can bring foam and water flow to clean the filter screen 1, so that the aim of avoiding the blockage of the filter screen 1 is fulfilled.
It should be understood that in the present embodiment, the back-flow backwash impeller 3 and the shaft sleeve 30 are integrally formed, but this is only a preferred solution for convenient manufacture, and the combination of the back-flow backwash impeller 3 and the shaft sleeve 30 is not limited, and the back-flow backwash impeller 3 and the shaft sleeve 30 may be two detachable parts.
The self-cleaning non-clogging pump provided by the embodiment utilizes water flow after impeller pressurization to synchronously clean the filter screen 1 while pumping water, can ensure that cleaning water does not contain sundries which can cause secondary blockage, simultaneously does not need a special control valve to carry out special back washing, prolongs the single operation time of the water pump, and improves the working efficiency of pumping water.
Example 2:
the self-cleaning non-clogging pump described in this embodiment, as shown in fig. 3 and 5, in addition to the features described in embodiment 1, in order to ensure reliable transmission, the transmission shaft 40 includes a special-shaped shaft section 41, and the special-shaped shaft section 41 is in transmission connection with the back-flow back-washing impeller 3.
In order to meet different lift requirements, as shown in fig. 3, a secondary impeller 6 is also connected to the transmission shaft 40 in a transmission manner, a guide plate assembly 7 is arranged between the secondary impeller 6 and the backflow backwashing impeller 3, and the guide plate assembly 7 is arranged in the pump body 2; in actual manufacturing, the secondary impeller 6 and the baffle assembly 7 can be provided with multiple groups in the pump body 2 according to the requirement of the lift.
In order to ensure that the filter screen 1 can be sufficiently cleaned by the flushing water flow, as shown in fig. 4, the aperture of the injection hole 32 is larger than that of the filter screen hole on the filter screen 1; in actual use, the jet flow gradually diffuses in the process of being sprayed to the filter screen 1 from the spray holes 32, the diffused jet flow drives foam to wash the filter screen holes under the action of pressure difference, when the aperture of each spray hole 32 is larger, the core part of the jet flow is thicker, and the diffused boundary can quickly cover the filter screen holes on the filter screen 1 corresponding to the spray holes 32, so that the situation that the jet flow cannot timely cover the filter screen holes due to the fact that the distance from the filter screen 1 to the spray holes 32 is smaller is avoided.
In order to avoid the cleaning jet flow from obstructing the water inlet of the water pump, the diversion chamber 31 is only arranged on one side of the transmission shaft 40, as shown in fig. 4.
In actual work, the backflow backwashing impeller 3 is driven by the transmission shaft 40 to rotate, jet flow sprayed out from the jet holes 32 rotates along with the backflow backwashing impeller, the whole filter screen 1 is periodically cleaned, and the diversion cavity 31 and the jet holes 32 on the diversion cavity are arranged on one side of the transmission shaft 40, so that the high-pressure jet flow for cleaning cannot obstruct water inflow of the water pump in the periodic cleaning process, and the water pump can reliably work.
The self-cleaning non-clogging pump provided by the embodiment further improves the reliability of the cleaning effect and the work of the water pump.
Example 3:
the self-cleaning non-clogging pump described in this embodiment, as shown in fig. 6 and 7, the impeller pumping assembly, the filter net 1 and the pump body 2, the filter screen 1 is arranged on the pump body 2, the impeller pumping component comprises a back-flow back-washing impeller 3 and a motor 4, the backflow backwashing impeller 3 is arranged in the pump body 2, a shaft sleeve 30 which is matched with a transmission shaft 40 of the motor 4 is arranged on the backflow backwashing impeller 3, the transmission shaft 40 extends into the pump body 2 and is in transmission connection with the back-flow back-washing impeller 3, a diversion cavity 31 is arranged between the shaft sleeve 30 and the transmission shaft 40, the shaft sleeve 30 is provided with a jet hole 32 communicating the shunt cavity 31 and the inner side of the filter screen 1, the inside of the pump body 2 is divided into a low pressure area 20 and a high pressure area 21 by the back-flow back-washing impeller 3, and the impeller pumping assembly is provided with a backflow injection pipe 5, and the backflow injection pipe 5 is communicated with the high-pressure area 21 and the flow dividing cavity 31.
For convenience of processing, as shown in fig. 8, a semicircular groove 300 is provided on a contact surface of the shaft sleeve 30 and the transmission shaft 40, and the semicircular groove 300 and a surface of the transmission shaft 40 may form the backflow injection pipe 5.
The self-cleaning non-clogging pump provided by the embodiment is convenient to produce and manufacture and can reduce the manufacturing cost because the bypass hole does not need to be processed on the shaft sleeve 30.
Example 4:
the self-cleaning non-clogging pump described in this embodiment, as shown in fig. 9 and 10, the impeller pumping assembly, the filter net 1 and the pump body 2, the filter screen 1 is arranged on the pump body 2, the impeller pumping component comprises a back-flow back-washing impeller 3 and a motor 4, the backflow backwashing impeller 3 is arranged in the pump body 2, a shaft sleeve 30 which is matched with a transmission shaft 40 of the motor 4 is arranged on the backflow backwashing impeller 3, the transmission shaft 40 extends into the pump body 2 and is in transmission connection with the back-flow back-washing impeller 3, a diversion cavity 31 is arranged between the shaft sleeve 30 and the transmission shaft 40, the shaft sleeve 30 is provided with a jet hole 32 communicating the shunt cavity 31 and the inner side of the filter screen 1, the inside of the pump body 2 is divided into a low pressure area 20 and a high pressure area 21 by the back-flow back-washing impeller 3, and the impeller pumping assembly is provided with a backflow injection pipe 5, and the backflow injection pipe 5 is communicated with the high-pressure area 21 and the flow dividing cavity 31.
As shown in fig. 9 and 10, the backflow spraying pipe 5 is disposed in the transmission shaft 40, and the backflow spraying pipe 5 may include a water inlet hole 50 and a water outlet hole 52 respectively communicating the high pressure region 21 and the diversion chamber 31 along a radial direction of the transmission shaft 40, and a connection hole 51 communicating the water inlet hole 50 and the water outlet hole 52 along an axial direction of the transmission shaft 40.
The self-cleaning non-clogging pump provided by the embodiment has the advantages that the backflow jet pipe 5 is arranged in the transmission shaft 40, the pressure resistance is good, and the requirement of higher cleaning pressure difference can be met.
Claims (8)
1. An automatic cleaning non-clogging pump comprises an impeller pumping assembly, a filter screen (1) and a pump body (2), and is characterized in that the filter screen (1) is arranged on the pump body (2), the impeller pumping assembly comprises a backflow backwashing impeller (3) and a motor (4), the backflow backwashing impeller (3) is arranged in the pump body (2), a shaft sleeve (30) which is matched with a transmission shaft (40) of the motor (4) is arranged on the backflow backwashing impeller (3), the transmission shaft (40) extends into the pump body (2) and is in transmission connection with the backflow backwashing impeller (3), a flow dividing cavity (31) is arranged between the shaft sleeve (30) and the transmission shaft (40), a jet hole (32) which is communicated with the flow dividing cavity (31) and the inner side of the filter screen (1) is arranged on the shaft sleeve (30), the inside of the pump body (2) is divided into a low-pressure area (20) and a high-pressure area (21) by the backflow backwashing impeller (3), and the impeller pumping assembly is provided with a backflow injection pipe (5), and the backflow injection pipe (5) is communicated with the high-pressure area (21) and the flow dividing cavity (31).
2. The pump as claimed in claim 1, wherein the sleeve (30) is provided with a shaft hole (33) engaged with the driving shaft (40), and the backward flow injection pipe (5) is a bypass hole provided beside the shaft hole (33).
3. The pump as claimed in claim 1, wherein the contact surface of the shaft sleeve (30) and the transmission shaft (40) is provided with a semicircular groove (300), and the semicircular groove (300) and the surface of the transmission shaft (40) form the backflow jet pipe (5).
4. The pump of claim 1, wherein the return jet pipe (5) is disposed in the transmission shaft (40), and the return jet pipe (5) includes a water inlet hole (50) and a water outlet hole (52) respectively communicating the high pressure region (21) and the flow dividing chamber (31) in a radial direction of the transmission shaft (40), and a connection hole (51) communicating the water inlet hole (50) and the water outlet hole (52) in an axial direction of the transmission shaft (40).
5. An automatic cleaning non-clogging pump according to claim 1 or 2 or 3 or 4, characterized in that said flow dividing chamber (31) is provided on one side of the drive shaft (40).
6. The self-cleaning non-clogging pump according to claim 1 or 2 or 3 or 4, characterized in that the transmission shaft (40) comprises a profiled shaft section (41), and the profiled shaft section (41) is in transmission connection with the back-flow back-washing impeller (3).
7. The automatic cleaning non-clogging pump according to claim 1, 2, 3 or 4, characterized in that the transmission shaft (40) is further connected with a secondary impeller (6) in a transmission manner, a guide plate assembly (7) is arranged between the secondary impeller (6) and the back-flow back-washing impeller (3), and the guide plate assembly (7) is arranged in the pump body (2).
8. The self-cleaning non-clogging pump according to claim 1 or 2 or 3 or 4, characterized in that the aperture of said ejection holes (32) is larger than the aperture of the screen holes of the screen (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022621853.0U CN213775703U (en) | 2020-11-13 | 2020-11-13 | Automatic cleaning non-clogging pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022621853.0U CN213775703U (en) | 2020-11-13 | 2020-11-13 | Automatic cleaning non-clogging pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213775703U true CN213775703U (en) | 2021-07-23 |
Family
ID=76918067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022621853.0U Active CN213775703U (en) | 2020-11-13 | 2020-11-13 | Automatic cleaning non-clogging pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213775703U (en) |
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2020
- 2020-11-13 CN CN202022621853.0U patent/CN213775703U/en active Active
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