CN2525286Y - Automatic anti-turn back device for submersible pump - Google Patents
Automatic anti-turn back device for submersible pump Download PDFInfo
- Publication number
- CN2525286Y CN2525286Y CN 01276344 CN01276344U CN2525286Y CN 2525286 Y CN2525286 Y CN 2525286Y CN 01276344 CN01276344 CN 01276344 CN 01276344 U CN01276344 U CN 01276344U CN 2525286 Y CN2525286 Y CN 2525286Y
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- CN
- China
- Prior art keywords
- water pump
- fixed
- water
- pump
- reversing
- 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
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An automatic anti-turn back device for submersible pump belongs to the submersible pump field, which plays a role in braking to prevent a water pump from reversing when the water pump is shut down. The utility model is mainly characterized in that: a friction wheel 3 is fixed on a water pump shaft 7 through a key 4; an eccentric fan-shaped block 2 is fixed on a water inlet segment 5 of the water pump through a slider 1; the outer circle of the friction wheel 3 is compressed by the outer margin of the eccentric fan-shaped block 2; a tension spring 4 is fixed on one side of the eccentric fan-shaped block 2; the other end of the tension spring 4 is fixed on the water inlet segment 5. The utility model has the advantages of overcoming door flapping as well as the deficiency that a non-return valve is prevented from reversing through water pressure and a sealing surface without pipe collapse rupture, sediment blockage, sealing surface wear and other phenomenon, and avoiding the noise as well as tooth top wear produced when a pawl of the common ratchet mechanisms slide on a ratchet tooth surface. The device is not limited by the rotational speed of submersible pumps, and effectively prevents the water pump from reversing during shutdown process.
Description
One, technical field
The utility model belongs to the submersible pump field.
Two, background technique
Submersible pump generally is made up of drive motor and pump housing two-part as a kind of broad-spectrum drainage and irrigation equipment.When cutting off the electricity supply, the water pump that is turning round runs out of steam suddenly, and water pump will just change the water turbine operating mode through just changeing the refluence damped condition, entering at last from just changeing pump operating condition, with the runaway speed counter-rotating, causes unit vibration.Speed reversal increases with specific speed, and especially for big flow, high specific speed submersible pump, high speed reverse rotation will cause water pump and pump seat to destroy.For avoiding accident to take place, often take flap valve and check valve to prevent the pump counter-rotating at present.But under many circumstances, clean and recharge occasions such as shared same pipeline, north of china in winter water transport pipeline and can't install and use flap valve or check valve such as: recharge well, and adopt flap valve and check valve, cause water hammer easily, cause pipe to shrivel and break; Flap valve and check valve be the former thereby inefficacy because of silt obstruction, sealing surface wear etc. easily also.
Three, summary of the invention
The purpose of this utility model provides the automatic anti kickback attachment of a kind of submersible pump, plays braking action when water pump is shut down, and prevents the water pump counter-rotating.
The utility model is to realize like this.The automatic anti kickback attachment of submersible pump, friction wheel 3 is fixed on the water pump spindle 7 by key 4, and eccentric segment piece 2 is fixed on by slide block 1 on the water inlet joint 5 of water pump, the cylindrical of the outer rim pressing friction wheel 3 of eccentric segment piece 2; Be fixed with extension spring 4 in eccentric segment piece 2 one sides, the other end of extension spring 4 is fixed on on the water joint 5.
Compare the beneficial effects of the utility model with background technique and be and overcome flap valve and check valve and carry out the deficiency of non-return anti-rotation by hydraulic pressure and sealing surface, pipe can not take place shrivel and break, silt stops up, phenomenons such as sealing surface wear.Avoided noise and the crown wearing and tearing of common ratchet mechanism ratchet when the ratchet flank of tooth slides simultaneously, this device is not limited by the submersible pump rotating speed, has prevented from effectively to reverse when water pump from shutting down.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model;
Five, specific embodiment
As shown in fig. 1, when water primitive axis 7 rotates counterclockwise, be the water pump normal working, at this moment, eccentric segment piece 2 slides on friction wheel 3.When water pump spindle 7 reversings, eccentric shape piece 2 slides clockwise with friction wheel 3 and tightens, and has played the effect that prevents water pump spindle 7 reversings.The effect of extension spring 4 is the relative positions that guarantee friction wheel 3 and eccentric segment piece 2.
The utility model not only can use in submersible pump, also can use in other centrifugal pump.
Claims (1)
1, the automatic anti kickback attachment of submersible pump, it is characterized in that: friction wheel (3) is fixed on the water pump spindle (7) by key (4), eccentric segment piece (2) is fixed on by slide block (1) on the water inlet joint (5) of water pump, the cylindrical of the outer rim pressing friction wheel (3) of eccentric segment piece (2); Be fixed with extension spring (4) in eccentric segment piece (2) one sides, the other end of extension spring (4) is fixed on on the water joint (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01276344 CN2525286Y (en) | 2001-11-21 | 2001-11-21 | Automatic anti-turn back device for submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01276344 CN2525286Y (en) | 2001-11-21 | 2001-11-21 | Automatic anti-turn back device for submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2525286Y true CN2525286Y (en) | 2002-12-11 |
Family
ID=33680483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01276344 Expired - Fee Related CN2525286Y (en) | 2001-11-21 | 2001-11-21 | Automatic anti-turn back device for submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2525286Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775348A (en) * | 2012-10-22 | 2014-05-07 | 中国核动力研究设计院 | Fully sealed pump with cam anti-inversion device |
| CN105765228A (en) * | 2013-10-17 | 2016-07-13 | 克莱德联合有限公司 | Motor-driven centrifugal pump for the primary circuit of small or medium-sized modular nuclear reactors |
| CN106499677A (en) * | 2016-11-11 | 2017-03-15 | 艾迪机器(杭州)有限公司 | A kind of reverse self-lock protection mechanism |
| CN116902654A (en) * | 2023-09-12 | 2023-10-20 | 潍坊石花化工建材有限公司 | Coiling and packaging device for asphalt waterproof coiled material production |
-
2001
- 2001-11-21 CN CN 01276344 patent/CN2525286Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775348A (en) * | 2012-10-22 | 2014-05-07 | 中国核动力研究设计院 | Fully sealed pump with cam anti-inversion device |
| CN103775348B (en) * | 2012-10-22 | 2016-08-31 | 中国核动力研究设计院 | Glandless motor pump with cam anti kickback attachment |
| CN105765228A (en) * | 2013-10-17 | 2016-07-13 | 克莱德联合有限公司 | Motor-driven centrifugal pump for the primary circuit of small or medium-sized modular nuclear reactors |
| CN106499677A (en) * | 2016-11-11 | 2017-03-15 | 艾迪机器(杭州)有限公司 | A kind of reverse self-lock protection mechanism |
| CN116902654A (en) * | 2023-09-12 | 2023-10-20 | 潍坊石花化工建材有限公司 | Coiling and packaging device for asphalt waterproof coiled material production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |