CN209195741U - A kind of anti-blocking-up protection apparatus of immersible pump - Google Patents
A kind of anti-blocking-up protection apparatus of immersible pump Download PDFInfo
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- CN209195741U CN209195741U CN201822061293.0U CN201822061293U CN209195741U CN 209195741 U CN209195741 U CN 209195741U CN 201822061293 U CN201822061293 U CN 201822061293U CN 209195741 U CN209195741 U CN 209195741U
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- immersible pump
- blocking
- protection apparatus
- internal layer
- sieve plate
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Abstract
The utility model discloses a kind of anti-blocking-up protection apparatus of immersible pump, belong to diving pump technical field.It includes the filtrate housing and Sandwich filling object of double layer design, and hollow interlayer gap is formed in filtrate housing, and Sandwich filling object is closed in the interlayer gap that inside and outside double medium filtration cover is formed, and forms three layer filtration to impurity in water body；Also, intermediate course filler can occur freely to roll under the action of immersible pump draws water suction and water flow, generate percussion to the foreign matter being attached on inside and outside filtering screen, utilize the blocking for preventing filter device itself；The utility model can effectively filter impurity in water body, prevent the blocking of immersible pump, and can prevent from itself from blocking well, improve working efficiency, have the advantages that simple structure and reasonable design, easily fabricated.
Description
Technical field
The utility model belongs to diving pump technical field, more specifically to a kind of anti-blocking-up protection apparatus of immersible pump.
Background technique
Immersible pump is a kind of very important underground water extract equipment, in rural area, factory, mine, Running-water Company, underground heat
There is very extensive application in the ground such as exploitation and oil field or field, whether sewage lifting, pressurization water supply and deep-well water intaking, all
It needs to be applied to immersible pump.Compared to ground face-pumping, the feature of immersible pump maximum, which is exactly that needs are submerged in water for a long time, to work,
But immersible pump is in use at present, due to the presence of the substances such as sundries (fine particle) in water body, easily makes immersible pump
It blocks, motor for submerged pump can be burnt out when serious, is reduced the service life, and the working environment multiplicity of immersible pump is complicated, than
As, containing homogeneous corrosion caused by corrosive substance, erosion corrosion caused by water volume flow rate is too fast etc. is possible to draw in water body
Diving failure of pump is played, the service life of immersible pump is impacted.And the practical application disposal costs that will cause immersible pump increase,
Reduce working efficiency.
Aiming at the problem that easily blocking when immersible pump is in operation, generally equipment initial operating stage using meet it is stifled must be clear, clearly
Stifled not overnight method be easy to cause the mill of the components such as pump choma although often dismantling the pump housing this avoid shut-down
Damage aggravation, and block clearing can expend a large amount of manpower and material resources every time.Or filter screen is set in the water inlet of water pump, it was used for drainage
Middle sundries prevents sundries from entering in water pump, while in order to avoid foreign matter blocks mesh, guaranteeing the working efficiency of immersible pump, mostly
Number strainer then selects mesh specification biggish, as a result filter effect is caused to reduce, and impeller etc. is impaired, reduces the use of immersible pump
Service life not can solve problem still.Such as Chinese patent, Authorization Notice No.: CN202789763U, authorized announcement date:
2013.03.13, a kind of water feeding of water pump filtering screen, including mesh enclosure ontology are disclosed, the mesh enclosure body surface is arranged at intervals with
Mesh enclosure body surface is separated into several small by several transverse ribs and vertical rib, several transverse ribs and vertical rib
Hole.The present invention using the above structure can filter lesser sundries, and filtering effective efficiency is high, guarantee that water pump works normally；But
There are still the potential problems that foreign matter blocks mesh.For another example Chinese patent, application publication number: CN107687449A, Shen Qing Publication
Day: 2018.02.13 provides a kind of Novel filter device of immersible pump, and filter device is set to the outside of pump housing water inlet,
It is made of outer filter cover and internal layer filter mantle, outer filter is provide with the outside for being placed in internal layer filter mantle, the setting of internal layer filter mantle
To be made of a fixed frame, a shaft, a rotary blade, a fixed plate and a filter screen, fixed frame is fixedly installed on water inlet
Inner cavity, the center vertical of fixed frame down-set shaft is arranged rotary blade in shaft, and turns the tip of the axis and be set as connecting
The inner surface of the bottom wall of filter screen, fixed plate are fixedly installed on the outside of water inlet, the lower surface rotation setting filtering of fixed plate
Net can be realized good filter effect, impurity avoided to block using the device, and still, impurity easily forms sediment in filter device
Product influences the effect of later period filtering.
And immersible pump needle is in operation, because the water body corrosivity and water body of working environment velocity flow pattern wash away etc. because
Element can equally cause the pump parts including pump housing shell, impeller etc. uniformly or the corrosivity of abrasion is damaged.It faces
Such problem considers that the selection of material is the Chang Fangfa for improving water pump antiseptic property.But only the selection of material is made and being changed
Become, corrosion resistance can only be promoted to a certain extent, and for the existing pump housing, can not according to use environment to material into
In the case that row changes, it is unpractical that the Corrosion Protection of water pump is improved by changing material.
In conclusion how effectively to avoid the pump housing because the pump housing damage that factors generate such as blocking and corrode therefore
The problem of barrier, and then impacts pump housing service life, causes working efficiency low, and working service manpower and material resources expend, tool
There is actual meaning.
Summary of the invention
1. to solve the problems, such as
Blocking easily occurs in operation for immersible pump and is corroded, causes the pump housing impaired, reduces making for immersible pump
It is poor with service life and existing anti-clogging device for submersible pump foreign body filtering effect, and easy blocking itself is equally existed, the later period needs frequency
The problem of numerous cleaning is replaced, the utility model provides a kind of preventing clogging up device of immersible pump, can effectively filter in water body
Impurity prevents the blocking of immersible pump, and anti-locking apparatus itself can block well, meanwhile, it can play a protective role to the pump housing, most
The corrosion for avoiding the pump housing of limits avoids the pump housing impaired, prolongs the service life, improve working efficiency, reduces plant maintenance institute
The manpower and material resources of consuming.
2. technical solution
To solve the above-mentioned problems, technical solution used by the utility model is as follows:
A kind of anti-blocking-up protection apparatus of immersible pump, including filtrate housing and Sandwich filling object；The filtrate housing by
Inside and outside double medium filtration cover structure, forms a hollow interlayer gap between inside and outside double medium filtration cover, and the Sandwich filling object is close
Degree < 1g/cm3, it is closed in the interlayer gap that inside and outside double medium filtration cover is formed；
Connector is offered in the filtrate housing, for connecting with immersible pump.
Preferably, on the outer filter cover hole aperture be greater than internal layer filter mantle on hole aperture, it is described
Sandwich filling object size is greater than the aperture size of hole on outer filter cover.
Preferably, the interlayer gap spacing that the outer filter cover and internal layer filter mantle are formed is 3~10cm, inner clip
The filling rate of layer filler is 60%~98%.
Preferably, the Sandwich filling object is the wear-resisting filler of rotary body and/or the wear-resisting filler of polyhedron, partial size
For 2~3cm.
Preferably, the outer filter cage apertures diameter is 5~10mm, and the spacing of hole is 3~5mm；The internal layer mistake
Filter bowl aperture is 1.6~6.6mm, and the spacing of hole is 3~5mm.
Preferably, the outer filter cover and internal layer filter mantle are made of the sieve plate with sieve pore, each sieve plate it
Between to be detachably connected, the sieve plate with a thickness of 0.5~10mm.
Preferably, the outer filter cover is the cabinet that steel plate is constituted with the sieve plate with sieve pore, the connector
It is to be detachably connected between the steel plate and sieve plate and each sieve plate on steel plate.
Preferably, the open cabinet that the internal layer filter mantle is constituted for the sieve plate with sieve pore, the opening cabinet
Open end be removably attachable on the steel plate of outer filter cover, be to be detachably connected between each sieve plate.
Preferably, immersible pump is placed in outside the immersible pump anti-blocking-up protection apparatus, the immersible pump block-resistant protection dress
Connector is set to connect with immersible pump water inlet end.
Preferably, immersible pump is placed in inside the immersible pump anti-blocking-up protection apparatus internal layer filter mantle, the connector
It is connect with immersible pump water outlet.
3. beneficial effect
Compared with the prior art, the utility model has the following beneficial effects:
(1) anti-blocking-up protection apparatus of immersible pump provided by the utility model, filtrate housing are made of inside and outside double medium filtration cover,
A hollow interlayer gap is formed between inside and outside double medium filtration cover, and is filled with density < 1g/cm3Sandwich filling object is using
It is equivalent in the process and three layer filtration safeguard measure is formd to immersible pump, the impurity particle of different-grain diameter in water body can be filtered,
Impurity in effective filtering water body, prevents the blocking of immersible pump, extends the service life of immersible pump；
Outer filter cover can prevent to enter compared with bigger material；Internal layer filter mantle can stop more tiny particulate matter to enter diving
Pump；Intermediate course filler density is less than water, free displacement can occur under the action of immersible pump draws water suction and water flow
Movement can not only squeeze the particulate matter for entering interlayer gap, make it through the discharge of outer filter cover, play further
The effect of filtering, and freely rolling for Sandwich filling object can be passed through, the foreign matter being attached on inside and outside filtering screen is generated
Percussion prevents foreign matter in filtrate housing and inside and outside filtering to greatest extent so that the impurity on mesh enclosure is shaken off in time
Accumulation on mesh enclosure prevents the blocking of filter device itself, improves working efficiency, reduces manpower object spent by plant maintenance
Power.
(2) anti-blocking-up protection apparatus of immersible pump provided by the utility model can make size according to actual needs
With the adjustment of size, the anti-blocking-up protection apparatus of immersible pump is done greatly, immersible pump is placed in immersible pump anti-blocking-up protection apparatus internal layer mistake
Inside filter bowl, it can play the role of filtering impurity in water body, it is anticlogging；Meanwhile and can slow down outside body of water flow velocity and
Fluidised form reduces water body and impurity foreign matter and washes away caused erosion corrosion to the pump housing, has certain protection to make on immersible pump
With；Reduce to greatest extent impurity in outside body of water to the impact of pump or because flow rate of water flow it is too fast caused by erosion corrosion；
If use space is restricted, the anti-blocking-up protection apparatus of immersible pump can also be done it is small, will be outside immersible pump water inlet
It is connected to immersible pump anti-blocking-up protection apparatus connector, the effect of anti-blocking filtering in immersible pump use process equally may be implemented, is changed
Water volume flow rate and fluidised form reduce the dynamics of erosion corrosion to the dynamics of washing away of pump housing impeller to a certain extent, meanwhile, and can save
Space is suitble to the use in small space.
(3) anti-blocking-up protection apparatus of immersible pump provided by the utility model, inner and outer shell are connected by the sieve plate with sieve pore
It forms, and detachable between each sieve plate, if obstruction, damage or the damage of Sandwich filling object of filtering screen occurs, only needs
The sieve plate of corresponding site is unloaded, is cleared up or is replaced, is convenient for the operation and maintenance of device later period, avoids to whole device
It carries out cleaning or because of the generation that local damage causes device discarded, reduces plant maintenance and use spent manpower object
Power.
(4) the anti-blocking-up protection apparatus structure of immersible pump provided by the utility model is simple, and design is rationally, easily fabricated.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the anti-blocking-up protection apparatus of immersible pump；
In figure: 1, outer filter cover；101, sieve plate；102, steel plate；2, internal layer filter mantle；3, Sandwich filling object；4, it connects
Mouthful；5, angle steel；6, bolt；7, bracket；8, flange.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is further described below the utility model:
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical；Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model；Term " and or " used herein includes
Any and all combinations of one or more related listed items.
Embodiment 1
The anti-blocking-up protection apparatus of one of the present embodiment immersible pump, including filtrate housing and Sandwich filling object 3, filtering
Shell is made of inside and outside double medium filtration cover, and 3 density of Sandwich filling object is 1g/cm3, it is closed in the folder that inside and outside double medium filtration cover is formed
In lamellar spacing, the aperture of hole is greater than the aperture of hole on internal layer filter mantle 2, the Sandwich filling object 3 on outer filter cover 1
Size is greater than the aperture size of hole on outer filter cover 1；Immersible pump is placed in inside internal layer filter mantle 2, and filtrate housing is equipped with
Connector 4 is connect to the water outlet with immersible pump.
The working principle of the anti-blocking-up protection apparatus of one of the present embodiment immersible pump are as follows: immersible pump is placed in block-resistant protection dress
2 in the internal layer filter mantle set, the water outlet of immersible pump agrees with 4 phase of connector of anti-blocking-up protection apparatus；When diving pump work,
Under the action of its suction, water body is through inside and outside double medium filtration cover and the Sandwich filling object 3 of centre, into immersible pump, and inside
Outer double medium filtration cover filtering is lower and Sandwich filling object is under the exclusion effect of impurity, contains into the impurity in the water body of immersible pump
Amount greatly reduces；Also, it since 3 density of intermediate course filler is less than water, draws water the effect of suction and water flow in immersible pump
Under, occur it is free roll, percussion is generated to the foreign matter being attached on inside and outside filtering screen so that impurity on mesh enclosure and
When fall, prevent foreign matter in filtrate housing to greatest extent and inside and outside filtering screen on accumulation, prevent filter device from
The blocking of body.
Outer filter cover 1 can prevent to enter compared with bigger material；3 pairs of the intermediate course filler particulate matters into interlayer gap
Squeezed, makes it through the discharge of outer filter cover 1, play the role of further filtering；Internal layer filter mantle 2 can stop more tiny
Particulate matter enter immersible pump；It is equivalent in use and three layer filtration safeguard measure is formd to immersible pump, can filter
The impurity particle of different-grain diameter in water body, the effective impurity filtered in water body, prevents the blocking of immersible pump.
Meanwhile inside and outside double medium filtration cover and Sandwich filling object 3 can slow down water volume flow rate, change water body fluid, meanwhile,
The direct releasing of hermetic section water body and pump to a certain extent effectively avoids the impact of the corrosivity and water body because of water body
The injury of homogeneous corrosion and erosion corrosion caused by the pump housing.
Embodiment 2
The anti-blocking-up protection apparatus of one of the present embodiment immersible pump, compared with Example 1, improvement is: outer layer
1 aperture of filter mantle is 5mm, and the spacing of hole is 3mm；2 aperture of internal layer filter mantle is 1.6mm, and the spacing of hole is 3mm；Outer layer
The interlayer gap spacing that filter mantle 1 and internal layer filter mantle 2 are formed is 3cm, and the filling rate of intraformational bed filler 3 is 60%, institute
The Sandwich filling object stated is the wear-resisting filler of polyhedron (material can select macromolecule organic material), partial size 2cm, density
Less than 1g/cm3。
The wear-resisting filler of above-mentioned polyhedron can be selected including triangle body, cube, prism, pyramid or terrace with edge etc.
One or more kinds of wear-resisting fillers of polyhedron can occur under the drive of water flow since its density is less than water
The variation of position generates movement and impact, realizes the filtering miscellaneous to water body, while can prevent to greatest extent foreign matter from filtering
Accumulation in shell and on inside and outside filtering screen, prevents the blocking of filter device itself.Water volume flow rate can equally be slowed down, changed
Become water body fluid, the direct releasing of hermetic section water body and pump to a certain extent, effectively avoid because water body corrosivity and
The injury of the impact of water body homogeneous corrosion and erosion corrosion caused by the pump housing.
Embodiment 3
The anti-blocking-up protection apparatus of one of the present embodiment immersible pump, compared with Example 1, improvement is: outer layer
1 aperture of filter mantle is 10mm, and the spacing of hole is 5mm；2 aperture of internal layer filter mantle is 6.6mm, and the spacing of hole is 5mm；Outer layer
The interlayer gap spacing that filter mantle 1 and internal layer filter mantle 2 are formed is 10cm, and the filling rate of intraformational bed filler 3 is 98%, folder
Layer filler 3 is the wear-resisting filler of rotary body (material can select high density polyethylene (HDPE)), and partial size 3cm, density is less than 1g/
cm3。
The wear-resisting filler of above-mentioned rotary body can be selected including cone, cylindrical body, round estrade, sphere and irregular
One or more kinds of wear-resisting fillers of rotary body including sphere etc. can be in water flow since its density is less than water
Under drive, the variation of position occurs, generates movement and impact, realizes the filtering miscellaneous to water body, while can prevent to greatest extent
Only accumulation of the foreign matter in filtrate housing and on inside and outside filtering screen prevents the blocking of filter device itself.Can equally it subtract
Slow water volume flow rate, changes water body fluidised form, the direct releasing of hermetic section water body and pump, effectively avoids because of water body to a certain extent
Corrosivity and water body impact homogeneous corrosion and erosion corrosion caused by the pump housing injury.
Embodiment 4
The anti-blocking-up protection apparatus of one of the present embodiment immersible pump, compared with Example 3, improvement is: outer layer
The cabinet that filter mantle 1 and internal layer filter mantle 2 are made of the sieve plate 101 with sieve pore, the sieve plate 101 with a thickness of
0.5mm。
1 screen-aperture of outer filter cover is 7.5mm, and the spacing of sieve pore hole is 4mm；2 aperture of internal layer filter mantle is 4mm,
The spacing of sieve pore hole is 4mm；The interlayer gap spacing that outer filter cover 1 and internal layer filter mantle 2 are formed is 6.5cm, inner clip
The filling rate of layer filler 3 is 79%, and Sandwich filling object 3 is that (material can select super high molecular weight to the wear-resisting filler of rotary body
Polyethylene), partial size 2.5cm, density is less than 1g/cm3。
Inside and outside double medium filtration cover has dismountable sieve plate 101 to constitute, if obstruction or the damage of filtering screen occurs, only
The sieve plate 101 of corresponding site need to be unloaded, be cleared up or replaced.Meanwhile if Sandwich filling object 3 needs to replace, also only need
A face sieve plate 101 is unloaded, the replacement of Sandwich filling object 3 is carried out, is convenient for the operation and maintenance of device later period, avoids device because of office
Portion is damaged, the case where not just being available or realize function reduction, save the cost.
Embodiment 5
The anti-blocking-up protection apparatus of one of the present embodiment immersible pump, compared with Example 4, improvement is: outer layer
It is hinge-connection between filter mantle 1 and each sieve plate 101 of internal layer filter mantle 2.
Immersible pump anti-blocking-up protection apparatus in the present embodiment, connection between each sieve plate 101, can be with not by the constraint of rigidity
Situations such as according to specifically used place, environment and space, flexibly adjustment is carried out, application range is wider.
Embodiment 6
In conjunction with Fig. 1, the anti-blocking-up protection apparatus of one of the present embodiment immersible pump, compared with Example 4, improvement exists
In: outer filter cover 1 is the cabinet that steel plate 102 is constituted with the sieve plate 101 with sieve pore, steel plate 102 and sieve plate 101 and each sieve
It is connected by 5 bolt 6 of angle steel between plate 101 and detachable, connector 4 is located on steel plate 102, the outlet pipe of internal diameter and immersible pump
Outer diameter is consistent, is connect by flange 8 with the outlet pipe of immersible pump, and 1 bottom of outer filter cover is equipped with bracket 7, uses convenient for device
In the process firm.
The open cabinet that internal layer filter mantle 2 is constituted for the sieve plate 101 with sieve pore, the open end of open cabinet are detachable
The steel plate 102 for being connected to outer filter cover 1 on, constitute internal layer filter mantle each sieve plate 101 between by 5 bolt 6 of angle steel connect
It connects and detachable.
Sandwich filling object 3 can select hydrophobicity wear-resistant material.
Further, constitute the sieve plate 101 of inside and outside cabinet with a thickness of 10mm.
Immersible pump anti-blocking-up protection apparatus in the present embodiment, structure is more firm, can provide for immersible pump relatively stable
Working environment and state.
Embodiment 7
The anti-blocking-up protection apparatus of one of the present embodiment immersible pump, compared with Example 4, improvement is: constituting
The sieve plate 101 of inside and outside cabinet with a thickness of 5.5mm.
Further, anti-blocking-up protection apparatus volume is relatively small, and immersible pump is placed in the immersible pump anti-blocking-up protection apparatus
Outside, immersible pump anti-blocking-up protection apparatus connector 4 are connect with immersible pump water inlet end.
The working principle of the anti-blocking-up protection apparatus of one of the present embodiment immersible pump are as follows: the connector of anti-blocking-up protection apparatus
4 are external in the water inlet end of immersible pump；When diving pump work, under the action of its suction, water body penetrates anti-blocking-up protection apparatus, filtering
Fall the impurity in water body, into the water inlet of immersible pump.
Claims (10)
1. a kind of anti-blocking-up protection apparatus of immersible pump, it is characterised in that: including filtrate housing and Sandwich filling object (3)；It is described
Filtrate housing be made of inside and outside double medium filtration cover, between inside and outside double medium filtration cover formed a hollow interlayer gap, it is described
Sandwich filling object density be no more than 1g/cm3, it is closed in the interlayer gap that inside and outside double medium filtration cover is formed；
Connector (4) are offered in the filtrate housing, for connecting with immersible pump.
2. a kind of anti-blocking-up protection apparatus of immersible pump according to claim 1, it is characterised in that: the inside and outside double-deck mistake
Filter bowl includes outer filter cover (1) and internal layer filter mantle (2), and the aperture of hole is greater than interior on the outer filter cover (1)
The aperture of hole on layer filter mantle (2), Sandwich filling object (3) size are greater than the aperture of hole on outer filter cover (1)
Size.
3. a kind of anti-blocking-up protection apparatus of immersible pump according to claim 1 or 2, it is characterised in that: the outer layer mistake
The interlayer gap spacing that filter bowl (1) and internal layer filter mantle (2) are formed is 3~10cm, and gap intraformational bed filler (3) are filled out
Filling rate is 60%~98%.
4. a kind of anti-blocking-up protection apparatus of immersible pump according to claim 3, it is characterised in that: the Sandwich filling object
It (3) is the wear-resisting filler of rotary body and/or the wear-resisting filler of polyhedron.
5. a kind of anti-blocking-up protection apparatus of immersible pump according to claim 4, it is characterised in that: the outer filter cover
(1) aperture is 5~10mm, and the spacing of hole is 3~5mm；Internal layer filter mantle (2) aperture is 1.6~6.6mm, hole
Spacing be 3~5mm.
6. a kind of anti-blocking-up protection apparatus of immersible pump according to claim 5, it is characterised in that: the outer filter cover
(1) it is made of the sieve plate (101) with sieve pore with internal layer filter mantle (2), is detachably to connect between each sieve plate (101)
Connect, the sieve plate (101) with a thickness of 0.5~10mm.
7. a kind of anti-blocking-up protection apparatus of immersible pump according to claim 6, it is characterised in that: the outer filter cover
(1) cabinet constituted for steel plate (102) with the sieve plate (101) with sieve pore, the connector (4) is located on steel plate, described
Steel plate and sieve plate (101) and each sieve plate (101) between be to be detachably connected.
8. a kind of anti-blocking-up protection apparatus of immersible pump according to claim 6, it is characterised in that: the internal layer filter mantle
(2) the open cabinet constituted for the sieve plate (101) with sieve pore, the open end of the opening cabinet are removably attachable to outer
On the steel plate (102) of layer filter mantle (1).
9. a kind of anti-blocking-up protection apparatus of immersible pump according to claim 8, it is characterised in that: immersible pump is placed in described
Outside immersible pump anti-blocking-up protection apparatus, the immersible pump anti-blocking-up protection apparatus connector (4) is connect with immersible pump water inlet end.
10. a kind of anti-blocking-up protection apparatus of immersible pump according to claim 8, it is characterised in that: immersible pump is placed in described
Immersible pump anti-blocking-up protection apparatus internal layer filter mantle inside, the connector (4) is connect with immersible pump water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822061293.0U CN209195741U (en) | 2018-12-06 | 2018-12-06 | A kind of anti-blocking-up protection apparatus of immersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822061293.0U CN209195741U (en) | 2018-12-06 | 2018-12-06 | A kind of anti-blocking-up protection apparatus of immersible pump |
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| Publication Number | Publication Date |
|---|---|
| CN209195741U true CN209195741U (en) | 2019-08-02 |
Family
ID=67428463
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822061293.0U Expired - Fee Related CN209195741U (en) | 2018-12-06 | 2018-12-06 | A kind of anti-blocking-up protection apparatus of immersible pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404299A (en) * | 2018-12-06 | 2019-03-01 | 安徽马钢嘉华新型建材有限公司 | A kind of anti-blocking-up protection apparatus of immersible pump |
| CN113153830A (en) * | 2021-05-17 | 2021-07-23 | 胡华武 | External filter of soil pick-up mouth |
-
2018
- 2018-12-06 CN CN201822061293.0U patent/CN209195741U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404299A (en) * | 2018-12-06 | 2019-03-01 | 安徽马钢嘉华新型建材有限公司 | A kind of anti-blocking-up protection apparatus of immersible pump |
| CN113153830A (en) * | 2021-05-17 | 2021-07-23 | 胡华武 | External filter of soil pick-up mouth |
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| CF01 | Termination of patent right due to non-payment of annual fee |