CN203783958U - Miniature one-way draining pump - Google Patents
Miniature one-way draining pump Download PDFInfo
- Publication number
- CN203783958U CN203783958U CN201320601048.9U CN201320601048U CN203783958U CN 203783958 U CN203783958 U CN 203783958U CN 201320601048 U CN201320601048 U CN 201320601048U CN 203783958 U CN203783958 U CN 203783958U
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- CN
- China
- Prior art keywords
- impeller
- rotating shaft
- miniature
- metal inserted
- inserted piece
- 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 - Lifetime
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Abstract
A miniature one-way draining pump comprises a permanent magnet rotor, a rotating shaft directly driven by the permanent magnet rotor, and an impeller fixed to the front end of the rotating shaft. The miniature one-way draining pump is characterized in that threads are arranged at the front end of the rotating shaft, a metal insert with threads is fixed to the rotating center of the impeller, and the rotating shaft is connected with the impeller through the threads of the metal insert. The impeller can be more easily detached in the production and maintenance process of the water pump, production and maintenance are facilitated, cost can be effectively reduced, and the impeller can be more firmly fixed to the rotating shaft.
Description
Technical field
The utility model relates to a kind of miniature single slope drainage pump, relates in particular to the fixed structure of this drain pump impeller, and in International Patent Classification (IPC), classification can belong to F04D29/22.
Background technique
The method that the most micro-drainage pump of prior art is installed impeller is that the axis hole by means of impeller is directly pressed into front end by impeller and is processed as the rotating shaft that section is " D " font, thereby mainly utilizes frictional force that impeller is fixed on to rotating shaft front end.This fixed structure causes this class water pump to dismantle impeller more complicated when producing or keep in repair, and even will destroy impeller and rotor, causes the rising of production and maintenance cost.And reality is used and shown, impeller fixing in rotating shaft still owes firm.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of miniature single slope drainage pump is provided, and the fixed structure of its impeller is for convenience detach and fixing more firm.
The technological scheme that the utility model solve the technical problem is: a kind of miniature single slope drainage pump, comprise p-m rotor, the direct drive rotating shaft of p-m rotor and be fixed on the impeller of rotating shaft front end, it is characterized in that, described rotating shaft front end is provided with screw thread, the rotating center of described impeller is fixed with the threaded metal inserted piece of tool, described rotating shaft and impeller being threaded by metal inserted piece.
One of its further design is: the screw thread of described rotating shaft front end is outside thread, and the screw thread of metal inserted piece is internal thread.
Two of its further design is: when the screw-in direction of described metal inserted piece screw thread is worked with draining pump, the sense of rotation of impeller is contrary.
Because rotating shaft adopts and is threaded with impeller, facilitated production and the maintenance of water pump, and in conjunction with firm.When the screw-in direction that especially designs described metal inserted piece screw thread is worked with draining pump, the sense of rotation of impeller is contrary, for single slope drainage pump, the reaction thrust that water acts on impeller is consistent toward the screw-in direction of rotating shaft with metal inserted piece, during operation, impeller can revolve tighter and tighter in rotating shaft, can not come off because of motion.
Accompanying drawing explanation
Fig. 1 is the utility model draining pump permanent magnet rotor structure schematic diagram.
Fig. 2 is the utility model drain pump impeller structural representation.
Fig. 3 is the utility model drain pump impeller generalized section.
Fig. 4 is the utility model draining pump metal inserted piece structural representation.
Fig. 5 is the erection drawing of the utility model drain pump impeller and p-m rotor.
Embodiment
The miniature single slope drainage pump of the utility model embodiment improves on the basis of the draining pump that directly drives at the Miniature permanent magnet motor of prior art or/and further design, and it is the formerly patent applications such as CN102297141A that the prior art is found in the applicant's publication number.
The miniature single slope drainage pump of the utility model embodiment than the improvement of the prior art or/and further design be mainly the fixed structure of its impeller, as shown in Fig. 1～5, comprising: the impeller fixed structure that this draining pump relates to comprises p-m rotor 1, the direct drive rotating shaft 2 of p-m rotor 1, the receded disk impeller 4 that is fixed on rotating shaft 2 front ends and the columniform metal inserted piece 6 of dumbbell; Impeller 4 is centrifugal for left-handed (being rotated counterclockwise), and its blade 5 is non-radially (forward direction or backward) formula, and it coordinates the drain opening formation that volute is offered in left-handed tangent direction to have the single slope drainage pump structure compared with high pump efficiency rate; The rotating shaft 2 of being made by stainless steel is provided with p-m rotor 1, rotating shaft 2 front ends are processed with cylindrical dextrorotation outside thread 3, the metal inserted piece 6 that made by stainless steel equally and rotating center is processed with dextrorotation cylindrical female 7 is fixed on the rotating center of impeller 4 by injection moulding, impeller 4 is rotated in a clockwise direction by the screw thread 7 of metal inserted piece 6 screw thread 3 that is tightly placed in rotating shaft 2 front ends.
When impeller 4 is rotated counterclockwise under p-m rotor 1 and rotating shaft 2 drivings, the screw-in direction (clockwise direction) of past rotating shaft 2 and the opposite direction that is rotated counterclockwise of impeller 4 due to the fixing metal inserted piece 6 in impeller 4 centers, the clockwise reaction thrust that water acts on impeller 4 is consistent with the screw-in direction of metal inserted piece 6, impeller 4 will can, because motion comes off, also can not revolve tighter and tighter on the contrary in rotating shaft 2.The utility model is in the production of water pump, in the process of maintenance, impeller is more easily dismantled, and convenient production and maintenance, can reduce costs effectively.
Claims (3)
1. a miniature single slope drainage pump, comprise p-m rotor, the direct drive rotating shaft of p-m rotor and be fixed on the impeller of rotating shaft front end, it is characterized in that, described rotating shaft front end is provided with screw thread, the rotating center of described impeller is fixed with the threaded metal inserted piece of tool, described rotating shaft and impeller being threaded by metal inserted piece.
2. miniature single slope drainage pump according to claim 1, is characterized in that: the screw thread of described rotating shaft front end is outside thread, and the screw thread of metal inserted piece is internal thread.
3. miniature single slope drainage pump according to claim 1, is characterized in that: when the screw-in direction of described metal inserted piece screw thread is worked with draining pump, the sense of rotation of impeller is contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320601048.9U CN203783958U (en) | 2013-09-27 | 2013-09-27 | Miniature one-way draining pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320601048.9U CN203783958U (en) | 2013-09-27 | 2013-09-27 | Miniature one-way draining pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783958U true CN203783958U (en) | 2014-08-20 |
Family
ID=51320150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320601048.9U Expired - Lifetime CN203783958U (en) | 2013-09-27 | 2013-09-27 | Miniature one-way draining pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061347A (en) * | 2017-04-07 | 2017-08-18 | 兰州兰泵有限公司 | The impeller linking structure and its quick despatch method of a kind of centrifugal multistage pump multiple centrifugal pump |
-
2013
- 2013-09-27 CN CN201320601048.9U patent/CN203783958U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061347A (en) * | 2017-04-07 | 2017-08-18 | 兰州兰泵有限公司 | The impeller linking structure and its quick despatch method of a kind of centrifugal multistage pump multiple centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 529040 No. 336 Qinglan Road, Jiangmen High-tech Development Zone, Guangdong Province Patentee after: HANYU GROUP Co.,Ltd. Address before: 529040 No. 336 Qinglan Road, Jiangmen High-tech Development Zone, Jiangmen City, Guangdong Province Patentee before: JANGMEN IDEAR HANYU ELECTRICAL JOINT-STOCK Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |
|
| CX01 | Expiry of patent term |