CN202971300U - Fixing device for non-blocking sewage pump - Google Patents
Fixing device for non-blocking sewage pump Download PDFInfo
- Publication number
- CN202971300U CN202971300U CN 201220566667 CN201220566667U CN202971300U CN 202971300 U CN202971300 U CN 202971300U CN 201220566667 CN201220566667 CN 201220566667 CN 201220566667 U CN201220566667 U CN 201220566667U CN 202971300 U CN202971300 U CN 202971300U
- Authority
- CN
- China
- Prior art keywords
- pump
- fixing device
- nut
- belleville spring
- impeller
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a fixing device for a non-blocking sewage pump, which comprises a nut and a belleville spring, wherein the nut is in screwed connection with a pump shaft; the belleville spring is positioned between the nut and an impeller; the pump shaft is sleeved with the belleville spring; the impeller is positioned in a pump body; and the pump shaft is sleeved with the impeller. The fixing device for the non-blocking sewage pump cannot loosen and can fix firmly.
Description
Technical field
The utility model relates to a kind of no-blocking pollution discharging pump, is specially a kind of fixing device of no-blocking pollution discharging pump.
Background technique
Pump shaft and the impeller of existing no-blocking pollution discharging pump are fixed by screw, and be fixing not firm, or the easy generation of screw extraction is loosening, thereby affect the service behaviour of no-blocking pollution discharging pump.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of fixing device of no-blocking pollution discharging pump, and it can not become flexible, and is fixed.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of fixing device of no-blocking pollution discharging pump, it is characterized in that, it comprises nut and belleville spring, the nut spiral is connected on a pump shaft, belleville spring is between nut and impeller and be enclosed within on pump shaft, and impeller is positioned at a pump housing and is enclosed within on pump shaft.
Preferably, the internal diameter of described belleville spring is greater than the diameter of nut.
The beneficial effects of the utility model are: the fixing device of the utility model no-blocking pollution discharging pump can not become flexible, and is fixed, guarantees the service behaviour of no-blocking pollution discharging pump.
Description of drawings
Fig. 1 is the structural representation of the fixing device of the utility model no-blocking pollution discharging pump.
Fig. 2 is the principle schematic in fixing device when work of the utility model no-blocking pollution discharging pump.
Embodiment
Below further illustrate the utility model by specific embodiment.
As depicted in figs. 1 and 2, the fixing device of the utility model no-blocking pollution discharging pump comprises nut 4 and belleville spring 5, nut 4 spirals are connected on a pump shaft 1, and belleville spring 5 is between nut 4 and impeller 2 and be enclosed within on pump shaft 1, and impeller 2 is positioned at a pump housing 3 and is enclosed within on pump shaft 1.The internal diameter of belleville spring 5 is greater than the diameter of nut 4.
If pump shaft changes etc., can directly exert an influence to belleville spring, but belleville spring has the elastic strain function, can absorb the variation of pump shaft like this, can not produce any effect to nut, can not become flexible like this, fixed, the service behaviour of assurance no-blocking pollution discharging pump.
Those skilled in the art can carry out various remodeling and change to the utility model.Therefore, the utility model has covered various remodeling and the change in the scope that falls into appending claims and equivalent thereof.
Claims (2)
1. the fixing device of a no-blocking pollution discharging pump, it is characterized in that, it comprises nut and belleville spring, and the nut spiral is connected on a pump shaft, belleville spring is between nut and impeller and be enclosed within on pump shaft, and impeller is positioned at a pump housing and is enclosed within on pump shaft.
2. the fixing device of no-blocking pollution discharging pump as claimed in claim 1, is characterized in that, the internal diameter of described belleville spring is greater than the diameter of nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220566667 CN202971300U (en) | 2012-10-31 | 2012-10-31 | Fixing device for non-blocking sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220566667 CN202971300U (en) | 2012-10-31 | 2012-10-31 | Fixing device for non-blocking sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971300U true CN202971300U (en) | 2013-06-05 |
Family
ID=48512384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220566667 Expired - Lifetime CN202971300U (en) | 2012-10-31 | 2012-10-31 | Fixing device for non-blocking sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971300U (en) |
-
2012
- 2012-10-31 CN CN 201220566667 patent/CN202971300U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |
|
| CX01 | Expiry of patent term |