CN208816400U - A kind of the automatic adjusument choma structure and submersible sewage pump of submersible sewage pump - Google Patents
A kind of the automatic adjusument choma structure and submersible sewage pump of submersible sewage pump Download PDFInfo
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- CN208816400U CN208816400U CN201821555545.9U CN201821555545U CN208816400U CN 208816400 U CN208816400 U CN 208816400U CN 201821555545 U CN201821555545 U CN 201821555545U CN 208816400 U CN208816400 U CN 208816400U
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- choma
- sewage pump
- submersible sewage
- impeller
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Abstract
The utility model relates to water pump technologies, the automatic adjusument choma structure and submersible sewage pump of especially a kind of submersible sewage pump, choma structure includes the choma for floating and being set to water inlet stop portion, and the choma upper surface is opposite with impeller lower end, and choma is connect by spring and locating piece with water inlet；Choma is equipped with discharge with endless screw slot, and the hand of spiral of discharge with endless screw slot from bottom to top is consistent with wheel rotation direction, and discharge with endless screw groove edge is equipped with helical cutting edge.Submersible sewage pump includes above-mentioned choma structure and impeller, and impeller is the half-open double blade structure of extension type, and the working face of blade is equipped with main cutting cutting edge, and the back side is equipped with end cutting edge mouth.The choma structure can make the pump housing that the impurity in water flow effectively be discharged, and prevent from blocking and wind；The submersible sewage pump can effectively cut impurity, at the same can be automatically drained out it is biggish, be difficult to the impurity cut, effectively reduce blocking and wrapping phenomena, and operating structure is stablized.
Description
Technical field
The utility model belongs to water pump technology, is related to the automatic adjusument choma structure and latent dirt of a kind of submersible sewage pump
Pump.
Background technique
Key equipment of the proof submersible sand discharging pump (abbreviation submersible sewage pump) as environmental protection and sewage treatment, it is dirty can to convey various lives
Water, industrial wastewater, construction site draining, liquid feed etc., in municipal works, industry, hospital, building, restaurant, water conservancy construction etc.
All trades and professions play a very important role.Submersible sewage pump can generally have various drosses, plastics system in sewage effluent in sewage
Product and fibrous object, these impurity be directly entered easily lead in submersible sewage pump sewage discharge have some setbacks influence pump it is normal
Work, on the one hand will affect the performances such as submersible sewage pump flow, lift, efficiency, and another aspect submersible sewage pump shaft power can be with winding, blocking
Severity and increase, it is serious or even burn motor.
The Chinese utility model patent CN207830144U and Chinese invention patent that applicant applies before this
CN108167197A discloses a kind of cutting-type centrifugation submersible sewage pump.The device include spiral case, motor, impeller and discharge flange (i.e.
Choma), wherein impeller uses the half-open double blade structure of extension type, is equipped with main cutting edges and pair on two blades of impeller
Cutting blade；Discharge flange is located at the water inlet of spiral case, and discharge flange is equipped with discharge with endless screw slot；Discharge flange upper surface with
Impeller lower end is opposite, and gap between the two forms the cutting runner of cutting impurity.The cutting-type is centrifuged submersible sewage pump conveyance capacity
By force, high-efficient, and included cutting edge, cutting effect can be realized without installing cutter device additional in water inlet, structure is simple；If spiral shell
Discharge groove is revolved, impurity particle can effectively be discharged, and reduce the probability that impeller is wound.Unfortunately, the flange upper end of the device
The distance of face and impeller lower end is fixed, and when impurity is larger and is difficult to cutting process, impurity is not easily passed through, be easy to cause winding,
Blocking even burns motor to influence to work normally when serious.
It is usual for the distance between impeller lower end and choma structure (similar discharge flange) size issue, traditional submersible sewage pump
Mobile relative to drive shaft using impeller, to change the size of impurity runner, but impeller belongs to rotary part, and axial movement is held
Easily lead to the fluctuation of service of motor or even entire pumping system.
Utility model content
The utility model purpose described in technology based on the above background, develops a kind of automatic adjusument choma knot of submersible sewage pump
Structure and submersible sewage pump, the choma structure are axially movable, and adjust the gap size between choma and impeller；Equipped with the choma structure
Submersible sewage pump is additionally provided with the impeller with cutting edge, can effectively be cut to impurity, while automatically adjusting between choma and impeller
Gap, be discharged it is biggish, be difficult to the impurity cut, blocking and wrapping phenomena can be effectively reduced, and operating structure is stablized.
To achieve the above object, the technical solution that the utility model is taken is:
A kind of adaptive choma adjustment structure of submersible sewage pump, comprising: spiral case；Impeller, be set to spiral case inner cavity in, the upper end with
The shaft end of motor is connected；Choma, set on the water inlet of spiral case, the choma upper surface is opposite with impeller lower end, the two it
Between spatial joint clearance formed one for cutting impurity outflow cutting runner；It is characterized in that, the choma floating ground is set to snail
The water inlet of shell, can be along the axial movement of motor.
Further, which further includes at least two springs, spring described at least two along choma circumferentially；
Wherein, the lower end of spring is fixed on the stop portion of water inlet, and upper end is fixed on the lower end surface of choma.The spring at least provided with
Two, guarantee choma and spiral case water inlet stable connection, and be axially movable.
Further, the spring is compressed spring.Compressed spring is shunk under pressure, and spring is multiple after pressure disappears
Position.Guaranteeing that choma is moved axially to water inlet direction under pressure using compressed spring, pressure resets after disappearing, without
It is pulled up, guarantees that there are fixed interval (FI) in choma upper surface and impeller lower end, avoid making choma with impeller locking
It fails at pump.
Further, which further includes several locating pieces, and one end of the locating piece is fixed on the inside of water inlet
End, one end pass through when the pilot hole on choma is moved axially for choma and are oriented to.Movement of the choma on horizontal position is limited, mouth is made
Ring is axially moveable, and guaranteeing choma, structure is steady during exercise.
Further, the choma is equipped with discharge with endless screw slot, the discharge with endless screw slot since the choma upper surface along
Choma surface of internal cavity extends to the choma lower end in the shape of a spiral.The discharge with endless screw slot is for being discharged solid matter.
Further, the hand of spiral of the discharge with endless screw slot from bottom to top is consistent with the direction of rotation of impeller.Make water flow
In solid matter be easier under the drive of impeller from discharge with endless screw slot be discharged.
Further, the discharge with endless screw groove edge has helical cutting edge.Water flow rotates under impeller drive, helical cutting edge
The impurity in water flow can be cut to a certain degree；Cutting edge positioned at the helical cuts cooperation impeller blade edge of choma upper surface
Impurity can be preferably cut, the probability for reducing submersible sewage pump blocking is played.
The utility model also provides a kind of submersible sewage pump, which is characterized in that includes above-described automatic adjusument choma
Structure.
Further, the impeller is the half-open double blade structure of extension type, and the working face of each blade is equipped with main cutting
Cutting edge, the back side are equipped with end cutting edge mouth.Main cutting cutting edge takes on main dissection；Blade is arranged in end cutting edge mouth
Secondary cutting and discharge effect are taken in lower end.
Further, the main cutting cutting edge quantity is two, and the shape of the main cutting cutting edge is straightway or song
Line segment；The end cutting edge mouth quantity is two, and the shape of the end cutting edge mouth is helical segment.
Compared with prior art, the utility model has the beneficial effects that
1. the choma structure of the utility model, is located on water inlet, opposite with impeller lower end, it is axially movable, adjusts mouth
Gap between ring and impeller passes through the pump housing convenient for the impurity in water flow, plays the role of preventing the pump housing from blocking.
2. between choma and water inlet by least two compressed springs connect, and be equipped with locating piece, guarantee choma into
The axial movement of mouth of a river direction, will not pop up and cause pump housing disabling damage with impeller locking；Guarantee choma and water inlet simultaneously
It is connected firmly, runs smoothly, it will not horizontal jitter.
3. the submersible sewage pump of the utility model, if the choma structure being axially movable, and the impeller with cutting edge, guarantee
Submersible sewage pump can effectively cut impurity, while can automatically adjust the gap between choma and impeller, autonomous discharge water
It is biggish in stream, be difficult to the impurity cut, blocking, the wrapping phenomena of the pump housing can be effectively reduced, and the operating structure of the pump housing is stablized.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model submersible sewage pump.
The cross-sectional view of submersible sewage pump when Fig. 2 is static or normal operation.
Fig. 3 is the portion the A enlarged drawing of Fig. 2.
Fig. 4 is the portion the A enlarged drawing of Fig. 2 when choma structure moves down in operation.
Fig. 5 is the structural schematic diagram of choma described in the utility model.
Fig. 6 is the structural schematic diagram of impeller described in the utility model.
Numeral mark in attached drawing is respectively:
1: spiral case；10: water inlet；2: motor；3: impeller；30: blade；31: cutting edge；311: main cutting cutting edge；
312: end cutting edge mouth；4: choma；40: pilot hole；41: discharge with endless screw slot；42: spring；43: locating piece.
Specific embodiment
In order to further describe the utility model, a kind of automatic adjusument of submersible sewage pump is further described with reference to the accompanying drawing
The specific embodiment of choma structure and submersible sewage pump, following embodiment is the explanation to the utility model, and the utility model is simultaneously
It is not limited to following embodiment.
As shown in Figure 2-5, the utility model discloses a kind of automatic adjusument choma structure of submersible sewage pump, including spiral case 1,
Motor 2, impeller 3 and choma 4 etc..The setting of motor 2 is arranged inside spiral case 1 in 1 top of turbine, the impeller 3, the electricity
The power end of machine 2 passes through 1 top of spiral case and is sequentially connected with 3 upper end of impeller being arranged in inside spiral case 1；1 bottom of spiral case is set
There is water inlet 10, the choma 4 is mounted on 10 stop portion of water inlet, 3 lower end of impeller and the 4 upper surface phase of choma
To setting up, and axis is identical, i.e., motor 2, impeller 3 and choma 4 are coaxial；The choma 4 can be moved along its axis, be adjustable choma
The distance between 4 upper surfaces and 3 lower end of impeller.
In the present embodiment, the choma 4 and water inlet 10 are connect by two or more springs 42, two or
Circumferentially along choma 4, the lower end of spring 42 is fixed on the stop portion of water inlet 4 to more than two springs 42, spring 42 it is upper
End is fixed on the lower end surface of choma 4.Two or more springs 42, which are arranged, can guarantee that choma 4 and 1 water inlet 10 of spiral case connect
Stabilization is connect, and is able to guide the axial movement of choma 4 and limits 4 horizontal jitter of choma to a certain extent.It is preferred that spring 42 is compression bullet
Spring, compressed spring are shunk under pressure, and spring reset after pressure disappears can guarantee choma 4 in pressure using compressed spring
It is moved axially under effect to 10 direction of water inlet, choma 4 resets after pressure disappears, and without popping up or stretching, guarantees mouth
There are certain fixed interval (FI) in 4 upper surface of ring and 3 lower end of impeller, avoid pumping caused by making choma 4 and 3 locking of impeller because of the stretching of spring 42
Failure.
It is preferred that choma 4 and 10 junction of water inlet are additionally provided with several locating pieces 43, described 43 one end of locating piece is fixed on
The inner end of water inlet 10, the other end are passed through when the pilot hole 40 on choma 4 is moved axially for choma 4 and are oriented to.If several are fixed
Position part 43, can preferably limit movement of the choma 4 on horizontal position, be axially moveable choma 4, guarantee that choma 4 is moving
When structure it is steady.Obviously 4 water of choma can also be limited by the way that the groove with matching outside choma 4 is arranged on water inlet 10
Square to movement, guarantee choma 4 move axially.
As shown in figure 5, the choma 4 is equipped with discharge with endless screw slot, the discharge with endless screw slot 41 is since 4 upper surface of choma
4 lower end of choma is extended in the shape of a spiral along 4 surface of internal cavity of choma.The design of discharge with endless screw slot 41 has guide functions,
Convenient for the discharge of impurity, the preferably hand of spiral of discharge with endless screw slot 41 from bottom to top is consistent with 3 rotation direction of impeller, make impurity and
Liquid is easier to be discharged from discharge with endless screw slot 41.Further preferred 41 edge of discharge with endless screw slot is equipped with helical cutting edge, water flow and miscellaneous
Matter is rotated by impeller 3 to be driven, and the quick rotation between impeller 3 and choma 4 is impacted on helical cutting edge, and impurity can be to a certain degree
On cut.
Picture 1-4 and shown in Fig. 6, the invention also discloses a kind of submersible sewage pump, which includes above-mentioned dive
Dirt pump automatic adjusument choma structure, further includes impeller 3.The impeller 3 is the half-open double blade structure of extension type, that is, has two panels
Leaf 30,30 edge of blade are equipped with sharp cutting edge 31, and the cutting edge 31 divides for main cutting cutting edge 311 and secondary cutting
Cutting edge 312, main cutting cutting edge 311 are located on the working face of blade 30, that is, are distributed on the side of blade 30, be straightway or
Curved section takes on main dissection；End cutting edge mouth 312 is located on the bottom edge of blade 30, i.e. the bottom of impeller 3, is spiral shell
Spin line section takes on secondary cutting and discharge effect.
The lower end of the impeller 3 is corresponding with above-mentioned 4 upper surface of choma, and size is identical, and space between the two is formed
One cutting runner for cutting impurity outflow.After submersible sewage pump is opened, the solids such as plastic products, fiber in sewage are due to leaf
Take turns the centrifugal force of 3 high speed rotations generation and with the space (cutting runner) between fluid inlet port ring 4 and impeller 3, due to leaf
It is equipped with sharp cutting edge on 30 edge of blade of wheel 3 and 41 edge of discharge with endless screw slot of choma 4, the fibre into cutting runner
The impurity such as dimension or particle shred the cutting channel formed by impeller 3 and choma 4；Such as biggish solids, choma 4 and leaf
When the cutting runner formed between wheel 3 can not be shredded, solids squeezes downwards under the centrifugal force effect that high speed rotation generates
Choma 4 is pressed, the downward compressive deformation of 42 stress of spring connecting with choma 4, choma 4 is along 40 slide downward of locating piece, choma 4 and leaf
Wheel the distance between 3 increases, solids from the gap of the increase quickly through；After biggish solids passes through, on choma 4 downwards
Pressure disappear, spring 42 resets, and choma 4 is returned to initial position, and cutting runner is normally carried out cutting.Above structure makes
The submersible sewage pump can effectively cut most impurity in sewage, and can exclude the object for being difficult to cut, and effectively prevent
Impurity be deposited between impeller 3 and choma 4 result in blockage, winding problem.
Submersible sewage pump in standing or normal operation, have between 3 lower end of 4 upper surface of choma and the impeller one it is opposite
Fixed clearance height, to guarantee cutting edge on impeller 3 and choma 4 can impurity effectively in water flow cutting, and will be after cutting
Impurity be quickly discharged from the gap, be unlikely to block and be wrapped on impeller 3, this clearance height is preferably 3~5mm,
It can preferably guarantee the cutting and discharge of impurity in this way.Submersible sewage pump has in abnormal running in the water flow of inflow submersible sewage pump
It is biggish, be difficult to the impurity cut, and the impurity rests on when can not normally be discharged between choma 4 and impeller 3, and choma 4 is miscellaneous
It axially moves under matter active force to 10 direction of water inlet, moving distance adds between choma 4 and impeller 3 choma 4 axially downwards
Original gap can preferably guarantee that the impurity that is biggish, being difficult to cut in water flow passes through choma 4 and impeller 3 in this way
Between gap discharge, will not immersible pump be resulted in blockage and be damaged.The maximum distance that choma 4 moves axially downwards is preferably
40mm, i.e., the adjustable range that choma 4 can move axially downwards is preferably 0~40mm.
When work, submersible sewage pump is placed in the bottom, starts motor 2, and water flow enters inside spiral case 1 from the water inlet 10 of spiral case 1, leaf
Wheel 3 is rotated with the rotation of motor 2, and main cutting cutting edge 311 thereon mainly cuts the impurity in water flow, is prevented big
The impurity such as plastics, fiber be wrapped on blade；Small impurity in 312 pairs of end cutting edge mouth on impeller 4 cutting runners into
Row cutting, to carry out secondary cut to the impurity being partially around on impeller 3；Impeller 3 drives water flow rotary, choma when rotating
The helical cutting edge that discharge with endless screw slot 41 has on 4 can carry out a degree of auxiliary to the impurity in rotary water current and cut, and can have
Effect improves cutting effect；Particle after final cutting is discharged in the case where the rotation of impeller 3 drives through discharge with endless screw slot 41.When band in water flow
Have it is biggish, when being difficult to the solid impurity shredded, such impurity can rest between choma 4 and impeller 3, and at this moment high speed rotation produces
Raw centrifugal force makes solid impurity be pressed down against choma 4,4 slide downward of choma, and the gap between choma 4 and impeller 3 increases, Gu
Body substance passes through, and solid matter is disappeared by the pressure on rear choma 4, and choma 4 resets, and submersible sewage pump continues normally
Draining and impurity cutting.
It follows that the submersible sewage pump of the utility model can effectively cut most impurity in sewage, and right
Into submersible sewage pump volume it is larger, be difficult to the impurity cut and can automatically, quickly be discharged, effectively prevent submersible sewage pump to be blocked and twine
Around improving the working efficiency of submersible sewage pump.
Above-described embodiment is the preferred embodiment of the utility model, is not the limit to technical solutions of the utility model
System, for those skilled in the art, the present invention may have various modifications and changes.All essences in the utility model
Mind and principle within, any modification, equivalent replacement, improvement and so on, should be included in the protection scope of the utility model it
It is interior.
Claims (10)
1. a kind of adaptive choma adjustment structure of submersible sewage pump, comprising:
Spiral case (1)；
Impeller (3) is set in spiral case (1) inner cavity, and the upper end is connected with the shaft end of motor (2)；
Choma (4) is set at the water inlet (10) of spiral case (1), and choma (4) upper surface is opposite with impeller (3) lower end, the two
Between spatial joint clearance formed one for cutting impurity outflow cutting runner；
It is characterized in that, choma (4) floating ground is set at the water inlet (10) of spiral case (1), it can be along the axial direction of motor (2)
It is mobile.
2. a kind of adaptive choma adjustment structure of submersible sewage pump according to claim 1, which is characterized in that the structure is also wrapped
Include at least two springs (42), spring described at least two (42) along choma (4) circumferentially；Wherein, spring (42)
Lower end is fixed on the stop portion of water inlet (10), and upper end is fixed on the lower end surface of choma (4).
3. a kind of adaptive choma adjustment structure of submersible sewage pump according to claim 2, which is characterized in that the spring
It (42) is compressed spring.
4. a kind of adaptive choma adjustment structure of submersible sewage pump according to claim 2, which is characterized in that the structure is also wrapped
Several locating pieces (43) are included, one end of the locating piece (43) is fixed on the inner end of water inlet (10), and one end passes through choma
(4) pilot hole (40) on is oriented to when moving axially for choma (4).
5. a kind of adaptive choma adjustment structure of submersible sewage pump, feature described in any one exist according to claim 1~4
Be equipped with discharge with endless screw slot (41) in, the choma (4), the discharge with endless screw slot (41) since choma (4) upper surface along
Choma (4) surface of internal cavity extends to the choma (4) lower end in the shape of a spiral.
6. a kind of adaptive choma adjustment structure of submersible sewage pump according to claim 5, which is characterized in that the spiral row
The hand of spiral of hopper (41) from bottom to top is consistent with the direction of rotation of impeller (3).
7. a kind of adaptive choma adjustment structure of submersible sewage pump according to claim 5, which is characterized in that the spiral row
Hopper (41) edge has helical cutting edge.
8. a kind of submersible sewage pump, which is characterized in that include adaptive choma adjustment structure described in claim 6 or 7.
9. a kind of submersible sewage pump according to claim 8, which is characterized in that the impeller (3) is the half-open twayblade of extension type
The working face of structure, each blade is equipped with main cutting cutting edge (311), and the back side is equipped with end cutting edge mouth (312).
10. a kind of submersible sewage pump according to claim 9, which is characterized in that main cutting cutting edge (311) quantity is two
Item, the shape of the main cutting cutting edge (311) are straightway or curved section；End cutting edge mouth (312) quantity is two,
The shape of the end cutting edge mouth (312) is helical segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821555545.9U CN208816400U (en) | 2018-09-21 | 2018-09-21 | A kind of the automatic adjusument choma structure and submersible sewage pump of submersible sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821555545.9U CN208816400U (en) | 2018-09-21 | 2018-09-21 | A kind of the automatic adjusument choma structure and submersible sewage pump of submersible sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208816400U true CN208816400U (en) | 2019-05-03 |
Family
ID=66278130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821555545.9U Active CN208816400U (en) | 2018-09-21 | 2018-09-21 | A kind of the automatic adjusument choma structure and submersible sewage pump of submersible sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208816400U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113062865A (en) * | 2021-03-25 | 2021-07-02 | 三联泵业股份有限公司 | Wear-resisting circulating water pump |
| CN114370405A (en) * | 2022-01-12 | 2022-04-19 | 大福泵业有限公司 | Circulation type submersible sewage pump with acceleration |
-
2018
- 2018-09-21 CN CN201821555545.9U patent/CN208816400U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113062865A (en) * | 2021-03-25 | 2021-07-02 | 三联泵业股份有限公司 | Wear-resisting circulating water pump |
| CN114370405A (en) * | 2022-01-12 | 2022-04-19 | 大福泵业有限公司 | Circulation type submersible sewage pump with acceleration |
| CN114370405B (en) * | 2022-01-12 | 2023-10-27 | 大福泵业有限公司 | Accelerating circulation type submersible sewage pump |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.30, section 3, Renmin South Road, Wuhou District, Chengdu City, Sichuan Province, 610000 Patentee after: Sichuan Machinery Research and Design Institute (Group) Co., Ltd Address before: No.30, section 3, Renmin South Road, Wuhou District, Chengdu City, Sichuan Province, 610000 Patentee before: SICHUAN PROVINCIAL MACHINERY RESEARCH & DESIGN INSTITUTE |
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| CP01 | Change in the name or title of a patent holder |