CN208311133U - Backwashing pump is used in a kind of production of drinking water - Google Patents
Backwashing pump is used in a kind of production of drinking water Download PDFInfo
- Publication number
- CN208311133U CN208311133U CN201820718048.XU CN201820718048U CN208311133U CN 208311133 U CN208311133 U CN 208311133U CN 201820718048 U CN201820718048 U CN 201820718048U CN 208311133 U CN208311133 U CN 208311133U
- Authority
- CN
- China
- Prior art keywords
- impeller
- main impeller
- pump
- stepped hole
- cooperation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000011001 backwashing Methods 0.000 title claims abstract description 17
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 16
- 239000003651 drinking water Substances 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 description 2
- 238000007600 charging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of drinking water production backwashing pumps, including the mask for being used to position main impeller being connected on pump shaft end, and the removable stop being connected on feed pipe；The stepped hole for being additionally provided on pump cover and paying impeller and main impeller clearance fit；The diameter of stepped hole from at main impeller cooperation to pay impeller cooperation at become smaller step by step；Mask and pump shaft position, and are formed and are stopped, so that main impeller can not loosen, can be effectively prevented main impeller and loosen the friction pump housing；When main impeller entrance blocks, guarantee to remove removable stop in the case where safety, take out foreign matter, operation is very convenient；Stepped hole forms two layers of sealing, when medium leaks with main impeller and stepped hole, due to paying impeller, the former is smaller compared at stepped hole cooperation, the amount of leakage can be reduced, and it is formed and is stopped, so that medium returns to main impeller entrance due to pressure, by the balance hole on main impeller, sealing performance is improved.
Description
Technical field
The utility model relates to equipment technical field used in drinking water production, specifically a kind of drinking water production
Use backwashing pump.
Background technique
It will use many mechanical equipments in drinking water producing procedure；Wherein backwashing pump, for carrying out circulation conveying to water；
Although traditional backwashing pump also can convey well water, still come with some shortcomings: 1. poor sealing effects often occur
The case where being leaked at sealing；2. main impeller is easy to appear loosening, when serious, main impeller can rub the pump housing, cause pump housing abrasion tight
Weight；3. need to dismount entire backwashing pump when main impeller entrance blocks, it is inconvenient for operation.
Utility model content
Aiming at the defects existing in the prior art, the utility model aim be to provide a kind of good seal performance,
The good drinking water production backwashing pump of structural reliability, to solve the above technical problem.
The utility model technical solution used for the above purpose is: a kind of drinking water production backwashing pump, packet
Bearing housing is included, the pump cover being connected on bearing housing is connected to pair impeller on the pump shaft on bearing housing and with pump cover cooperation
And main impeller, the sealing element between pump cover and pump shaft is set, the pump housing with main impeller clearance fit being connected on pump cover, with
And it is connected to the feed pipe with main impeller clearance fit on the pump housing；It is characterized by also including be connected on pump shaft end
For positioning the mask of main impeller, and the removable stop being connected in the first through hole on feed pipe；On the pump cover
The stepped hole for being additionally provided with and paying impeller and main impeller clearance fit；The diameter of the stepped hole from at main impeller cooperation to
Become smaller step by step at impeller cooperation with paying.
Preferably, the mask is circular configuration, is bolted by two symmetrically arranged second through-holes with pump shaft.
Preferably, the removable stop include and first through hole according to proper tolerances clearance fit insertion end, with
And the protruding end being bonded with the plane on feed pipe；Cross section between the insertion end and protruding end is " T " shape structure.
Preferably, gasket is additionally provided between the protruding end and plane.
Preferably, the gap size A between the large cylindrical and stepped hole for paying impeller is 0.3mm.
Preferably, the gap size B between the cooperation of the main impeller and stepped hole is 0.5mm.
The utility model has the beneficial effects that a kind of drinking water production backwashing pump, is provided with mask, positions with pump shaft, shape
At blocking, so that main impeller can not loosen, main impeller can be effectively prevented and loosen the friction pump housing；Removable stop is provided with,
When main impeller entrance blocks, in the case where guaranteeing safety, removable stop is removed, takes out foreign matter, operation is very convenient；
Be provided on pump cover with pay impeller and main impeller clearance fit stepped hole, formed two layers sealing, when medium by main impeller with
When leaking at stepped hole cooperation, due to paying impeller, the former is smaller compared at stepped hole cooperation, so can reduce leakage
Amount, and formed and stopped, so that medium returns to main impeller entrance due to pressure, by the balance hole on main impeller, mention
High sealing performance.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the C portion partial enlarged view in the utility model Fig. 1；
Fig. 3 is the part the D partial enlarged view in the utility model Fig. 1；
Fig. 4 is the utility model mask main view；
In figure: 1. bearing housings, 2. pump covers, 3. pump shafts, 4. pairs of impellers, 5. main impellers, 6. sealing elements, 7. pump housings, 8. chargings
Pipe, 9. masks, 10. removable stops, 11. stepped holes, 12. gaskets, 801. first through hole, 802. planes, 901. second lead to
Hole, 101. insertion ends, 102. protruding ends.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment；
Embodiment one:
See Fig. 1, Fig. 2, Fig. 3, Fig. 4；A kind of drinking water production backwashing pump, including bearing housing 1, are connected on bearing housing 1
Pump cover 2, be connected to it is on the pump shaft 3 on bearing housing 1 and with pump cover 2 cooperate pay impeller 4 and main impeller 5, setting pumping
Sealing element 6 between lid 2 and pump shaft 3, the pump housing 7 with 5 clearance fit of main impeller being connected on pump cover 2, and it is connected to pump
The feed pipe 8 with 5 clearance fit of main impeller on body 7；It further include being bolted to be used to position master on 3 end of pump shaft
The mask 9 of impeller 5, and the removable stop 10 being bolted in the first through hole 801 on feed pipe 8；Described
The stepped hole 11 for being additionally provided on pump cover 2 and paying 5 clearance fit of impeller 4 and main impeller；The diameter of the stepped hole 11 by with
At 5 cooperation of main impeller to pay 4 cooperation of impeller at become smaller step by step；Become smaller step by step, be construed to, step is the layer of multiple and different height
Grade composition, is then ecto-entad, the diameter in hole is from large to small due to being stepped hole 11；In actual use, it is provided with mask 9,
The mask 9 is circular configuration, is bolted by two symmetrically arranged second through-holes 901 with pump shaft 3, in pump shaft 3
End, which is formed, to stop, so that main impeller 5 can not loosen, can be effectively prevented main impeller 5 and loosen the friction pump housing 7；Being provided with can
Block 10 is dismantled, when 5 entrance of main impeller blocks, in the case where guaranteeing safety, removes removable stop 10 and charging
Connection bolt on pipe 8, takes out foreign matter, and operation is very convenient；It is provided on pump cover 2 and pays 5 clearance fit of impeller 4 and main impeller
Stepped hole 11, two layers of sealing is formed, when medium leaks with main impeller 5 and stepped hole 11, due to paying impeller 4 and a platform
It is smaller compared to the former at 11 cooperation of rank hole, so the amount of leakage can be reduced, and formed and stopped, so that medium is due to pressure
The reason of, 5 entrance of main impeller is returned to by the balance hole 201 on main impeller 5, negative pressure shape can be in by 5 entrance of main impeller
State improves sealing performance.
In Fig. 2: the removable stop 10 includes the insertion with first through hole 801 according to proper tolerances clearance fit
End 101, and the protruding end 102 being bonded with the plane 802 on feed pipe 8；Between the insertion end 101 and protruding end 102
Cross section be " T " shape structure；Gasket 12 is additionally provided between the protruding end 102 and plane 802；Pass through "T"-shaped knot
Structure, it is more preferable with the reliability of positioning of feed pipe 8, it is provided with gasket 12, it is therefore prevented that dielectric leakage.
In Fig. 3: the gap size A between the large cylindrical and stepped hole 11 for paying impeller 4 is 0.3mm；Described
Gap size B between the cooperation of main impeller 5 and stepped hole 11 is 0.5mm；By the control of size, slip is reduced,
Further improve the effect of sealing.
Working principle of the utility model is: the blocking of mask 9 is utilized, removable stop 10 it is easy for assemble or unload, with
And the sealing step by step of stepped hole 11, reliability of structure is improved, and operate more convenient.
In the utility model description, it is to be understood that term " between ", the indicating positions such as " at cooperation " or position close
System is to be merely for convenience of description the utility model based on positional relationship described in attached drawing or simplify description, rather than indicating must
The specific orientation that must have；
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of drinking water production uses backwashing pump, including bearing housing (1), the pump cover (2) being connected on bearing housing (1) to be connected to
Pair impeller (4) and main impeller (5) on pump shaft (3) on bearing housing (1) and with pump cover (2) cooperation, are arranged in pump cover
(2) sealing element (6) between pump shaft (3), the pump housing (7) with main impeller (5) clearance fit being connected on pump cover (2), with
And it is connected to the feed pipe (8) with main impeller (5) clearance fit on the pump housing (7)；It is characterized by also including be connected to pump shaft
(3) it is used to position the mask (9) of main impeller (5) on end, and in the first through hole (801) being connected on feed pipe (8)
Removable stop (10)；The step for being additionally provided on the pump cover (2) and paying impeller (4) and main impeller (5) clearance fit
Hole (11)；The diameter of the stepped hole (11) from at main impeller (5) cooperation to pay impeller (4) cooperation at become smaller step by step.
2. a kind of drinking water production backwashing pump according to claim 1, it is characterised in that: the mask (9) is circle
Shape structure is bolted by two symmetrically arranged second through-holes (901) with pump shaft (3).
3. a kind of drinking water production backwashing pump according to claim 1, it is characterised in that: the removable stop
(10) include insertion end (101) with first through hole (801) according to proper tolerances clearance fit, and on feed pipe (8)
The protruding end (102) of plane (802) fitting；Cross section between the insertion end (101) and protruding end (102) is "T"-shaped
Structure.
4. a kind of drinking water production backwashing pump according to claim 3, it is characterised in that: the protruding end (102)
Gasket (12) are additionally provided between plane (802).
5. a kind of drinking water production backwashing pump according to claim 1, it is characterised in that: pair impeller (4)
Gap size A between large cylindrical and stepped hole (11) is 0.3mm.
6. a kind of drinking water production backwashing pump according to claim 1, it is characterised in that: the main impeller (5) with
Gap size B between the cooperation of stepped hole (11) is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820718048.XU CN208311133U (en) | 2018-05-15 | 2018-05-15 | Backwashing pump is used in a kind of production of drinking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820718048.XU CN208311133U (en) | 2018-05-15 | 2018-05-15 | Backwashing pump is used in a kind of production of drinking water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208311133U true CN208311133U (en) | 2019-01-01 |
Family
ID=64712566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820718048.XU Expired - Fee Related CN208311133U (en) | 2018-05-15 | 2018-05-15 | Backwashing pump is used in a kind of production of drinking water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208311133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114206468A (en) * | 2019-08-19 | 2022-03-18 | 阿法拉伐莫阿蒂股份公司 | Filter unit with improved cover assembly |
-
2018
- 2018-05-15 CN CN201820718048.XU patent/CN208311133U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114206468A (en) * | 2019-08-19 | 2022-03-18 | 阿法拉伐莫阿蒂股份公司 | Filter unit with improved cover assembly |
| CN114206468B (en) * | 2019-08-19 | 2023-12-29 | 阿法拉伐莫阿蒂股份公司 | Filter unit with improved cap assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 |