CN201827134U - Liquid pump impeller loosening preventive device - Google Patents
Liquid pump impeller loosening preventive device Download PDFInfo
- Publication number
- CN201827134U CN201827134U CN201020536806XU CN201020536806U CN201827134U CN 201827134 U CN201827134 U CN 201827134U CN 201020536806X U CN201020536806X U CN 201020536806XU CN 201020536806 U CN201020536806 U CN 201020536806U CN 201827134 U CN201827134 U CN 201827134U
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- shaft
- axle sleeve
- shaft sleeve
- 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
A liquid pump impeller loosening preventive device relates to liquid pumps. An impeller is arranged on a pump shaft via flat keys, threads with same rotational directions are arranged on pump shaft on two sides of the impeller, a common shaft sleeve matching with the corresponding thread is arranged on the pump shaft and on one side of the impeller, a rotation preventing shaft sleeve is arranged on the pump shaft and on the other side of the impeller, one end of the rotation preventing shaft sleeve is provided with shaft sleeve key slots, and one end of each flat key is inserted into the corresponding shaft sleeve key slot. One liquid pump is provided with one pump shaft, storage is low, manufacturing cost is low, only the common shaft sleeve and the rotation preventing shaft sleeve need to be exchanged and mounted for adjusting the rotation directions of the pump in field use, and repurchasing of a reverse rotating shaft is avoided, thereby the cost is low and cycle is short, and replacement is convenient.
Description
Technical field
The present invention relates to liquid pump, is a kind of liquid pump impeller anti-loose device specifically.
Background technique
We know, existing liquid pump impeller anti-loose device, be on pump shaft, to be provided with impeller through flat key, the pump shaft of impeller both sides is provided with the screw thread of two kinds of counterturns, on the pump shaft with the threaded sleeve that is provided with of threads engaged, during pump work, the screw-thread fit on threaded sleeve and the pump shaft is more and more tighter, produces effect to prevent that impeller is loosening.This locking device, when turning to of liquid pump need be adjusted to counter-rotating, loosening in order to prevent threaded sleeve and impeller, need be replaced by the counter-rotating pump shaft, the screw thread of counter-rotating on the pump shaft with just changeing screw thread switched in opposite on the pump shaft, every liquid pump is equipped with two pump shafts, and quantity in stock is big, the manufacture cost height, when the scene of using needs the adjustment pump to turn to, must order a reversing shaft again, cost height, cycle are long, and change inconvenient.
Summary of the invention
The technical problem that the present invention solves is, solves two pump shafts of every liquid pump outfit, and quantity in stock is big, when manufacture cost height, the scene of using need the adjustment pump to turn to, must order a reversing shaft again, cost height, cycle are long, and change inconvenient problem, provide a kind of every liquid pump to be equipped with a pump shaft, quantity in stock is little, when low cost of manufacture, the scene of using need the adjustment pump to turn to, need not order a reversing shaft again, cost is low, the cycle is short, and easy to operate liquid pump impeller anti-loose device.
Technological scheme of the present invention is, a kind of liquid pump impeller anti-loose device, on pump shaft, be provided with impeller through flat key, the main structure characteristics are, the pump shaft of impeller both sides is provided with and turns to identical screw thread, is provided with common axle sleeve with threads engaged impeller one side on the pump shaft, and opposite side is provided with the anti-rotation axle sleeve, anti-rotation axle sleeve one end is provided with the axle sleeve keyway, and an end of flat key is in the axle sleeve keyway.
The invention has the beneficial effects as follows, because the pump shaft of impeller both sides is provided with and turns to identical screw thread, be provided with common axle sleeve with threads engaged impeller one side on the pump shaft, opposite side is provided with the anti-rotation axle sleeve, anti-rotation axle sleeve one end is provided with the axle sleeve keyway, one end of flat key is in the axle sleeve keyway, every liquid pump is equipped with a pump shaft, quantity in stock is little, and low cost of manufacture is when the scene of using needs the adjustment pump to turn to, only needing that common axle sleeve and anti-rotation axle sleeve are exchanged installation gets final product, need not order a reversing shaft again, cost is low, the cycle is short, and changes conveniently.
Description of drawings
Accompanying drawing is a kind of structural representation of the present invention, also is a kind of embodiment's schematic representation.
Embodiment
Liquid pump impeller anti-loose device as shown in the figure, be provided with impeller 2 through flat key 3 on the pump shaft 4, the pump shaft 4 of impeller 2 both sides is provided with and turns to identical screw thread, be provided with common axle sleeve 5 with threads engaged impeller 2 one sides, opposite side is provided with anti-rotation axle sleeve 1, anti-rotation axle sleeve 1 one ends are provided with the axle sleeve keyway, and an end of flat key 3 is in the axle sleeve keyway.Common axle sleeve relies on the rotation of pump shaft locking, the anti-rotation axle sleeve relies on the flat key in the axle sleeve keyway locking, when the scene of using needs the adjustment pump to turn to, only need that common axle sleeve and anti-rotation axle sleeve are exchanged installation and get final product, pump shaft of every liquid pump outfit, quantity in stock is little, low cost of manufacture, adjust when pump turns to and need not order a reversing shaft again, cost is low, the cycle is short, replacing, easy for installation.
Claims (1)
1. liquid pump impeller anti-loose device, on pump shaft, be provided with impeller through flat key, it is characterized in that, the pump shaft of impeller both sides is provided with and turns to identical screw thread, be provided with common axle sleeve opposite side with threads engaged impeller one side on the pump shaft and be provided with the anti-rotation axle sleeve, anti-rotation axle sleeve one end is provided with the axle sleeve keyway, and an end of flat key is in the axle sleeve keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020536806XU CN201827134U (en) | 2010-09-21 | 2010-09-21 | Liquid pump impeller loosening preventive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020536806XU CN201827134U (en) | 2010-09-21 | 2010-09-21 | Liquid pump impeller loosening preventive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827134U true CN201827134U (en) | 2011-05-11 |
Family
ID=43965673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020536806XU Expired - Fee Related CN201827134U (en) | 2010-09-21 | 2010-09-21 | Liquid pump impeller loosening preventive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827134U (en) |
-
2010
- 2010-09-21 CN CN201020536806XU patent/CN201827134U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20150921 |
|
| EXPY | Termination of patent right or utility model |