CN204664512U - A kind of safety check - Google Patents
A kind of safety check Download PDFInfo
- Publication number
- CN204664512U CN204664512U CN201520313747.2U CN201520313747U CN204664512U CN 204664512 U CN204664512 U CN 204664512U CN 201520313747 U CN201520313747 U CN 201520313747U CN 204664512 U CN204664512 U CN 204664512U
- Authority
- CN
- China
- Prior art keywords
- flap
- shaft
- flap shaft
- valve
- valve seat
- 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
Landscapes
- Lift Valve (AREA)
- Check Valves (AREA)
Abstract
In order to solve deficiency of the prior art, the utility model designs a kind of safety check especially, comprise valve body, flap and valve seat, seal ring is designed with between valve body and flap, described flap comprises flap body and flap shaft, flap shaft and flap body are for being flexibly connected, and flap shaft is metal hollow pipe, and flap shaft is designed with position structure near flap body end; Valve base center hole is provided with pre-pressing structure, and this pre-pressing structure overlaps one end and is located in flap shaft, and be pretension platform near flap shaft one end, pre-pressing structure is provided with regulation structure at valve seat away from flap end; Flap shaft is arranged with spring, and described valve seat and valve body are connected and fixed; This safety check flap shaft and flap body are not integral structure designs, product structure is simple, cost hinge structure traditional product decreases, and adds that some aid in improved on product structure can well prevent the problems such as the long-time usability decline of spring or inefficacy simultaneously.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of safety check.
Background technique
Safety check relies on medium itself to flow and automatic open and close flap, be used for the valve preventing medium from flowing backwards, belong to a kind of automatic valve, its Main Function be prevent medium flow backwards, prevent pump and drive motor reversion, and the releasing of vessel media, general and the flap body of safety check flap shaft of the prior art designs for integral type, entirety is solid construction, product is in processing relative complex, the product cost of raw material is higher, is necessary very much to do to improve for this part-structure for current market with keen competition; Safety check of the prior art is set in spring on flap along with long use, and performance can decline to some extent, and the elastic force of spring reduces, and flap can be caused just to open flap when smaller hydraulic pressure impacts, occurs the problems such as the leakage of the unknown.
Model utility content
In order to solve deficiency of the prior art, the utility model designs a kind of safety check especially, this safety check flap shaft and flap body are not integral structure designs, product structure is simple, cost hinge structure traditional product decreases, and adds that some aid in improved on product structure can well prevent the problems such as the long-time usability decline of spring or inefficacy simultaneously.
The technical solution of the utility model is: a kind of safety check, comprise valve body, flap and valve seat, seal ring is designed with between valve body and flap, described flap comprises flap body and flap shaft, flap shaft and flap body are for being flexibly connected, flap shaft is metal hollow pipe, and flap shaft is designed with position structure near flap body end; Valve base center hole is provided with pre-pressing structure, and this pre-pressing structure overlaps one end and is located in flap shaft, and be pretension platform near flap shaft one end, pre-pressing structure is provided with regulation structure at valve seat away from flap end; Flap shaft is arranged with spring, and spring one end is fixed on flap by the position structure in flap shaft, and the pretension platform of the other end and pre-pressing structure offsets, and described valve seat and valve body are connected and fixed.
The beneficial effects of the utility model are that this safety check is by adopting said structure, flap body and flap shaft are for being flexibly connected, flap shaft is designed with the fixed installation of position structure for spring, flap shaft is hollow-core construction simultaneously, the flap of the relative integral structure design of production of product is simplified, add that flap shaft is the relative traditional solid infrastructure product of hollow tubular, raw material obtain certain saving; Simultaneously because be designed with pre-pressing structure on valve seat, the flexible of pretension platform can be regulated by the regulation structure on pre-pressing structure, because spring one end is fixed on the other end and pretension platform on flap and offsets, pretension can be carried out to spring by the flexible of pretension position of platform, the problems such as spring hydraulic performance decline or inefficacy can well be avoided; Can find out that the product value of this structural design obtains consumers in general and uses and promote in sum.
Accompanying drawing explanation
Fig. 1 is the structural representation of this model utility safety check;
In figure: 1, valve body; 2, flap body; 3, flap shaft; 4, valve seat; 5, spring; 6, pre-pressing structure; 7, regulation structure; 8, pretension platform.
Embodiment
As described in Figure 1, a kind of safety check, comprise valve body 1, flap and valve seat 4, seal ring is designed with between valve body 1 and flap, described flap comprises flap body 2 and flap shaft 3, flap shaft 3 and flap body 2 are for being flexibly connected, and flap shaft 3 is metal hollow pipe, and flap shaft 3 is designed with position structure near flap body 2 end; Valve base center hole is provided with pre-pressing structure 6, this pre-pressing structure 6 one end is set in flap shaft 3, and be pretension platform 8 near flap shaft 3 one end, pre-pressing structure 6 is provided with regulation structure 7 at valve seat 4 away from flap end; Flap shaft 3 is arranged with spring 5, spring 5 one end is fixed on flap by the position structure in flap shaft 3, and the pretension platform 8 of the other end and pre-pressing structure 6 offsets, and described valve seat 4 is connected and fixed with valve body 1.
Claims (1)
1. a safety check, comprise valve body, flap and valve seat, seal ring is designed with between valve body and flap, it is characterized in that: described flap comprises flap body and flap shaft, flap shaft and flap body are for being flexibly connected, flap shaft is metal hollow pipe, and flap shaft is designed with position structure near flap body end; Valve base center hole is provided with pre-pressing structure, and this pre-pressing structure overlaps one end and is located in flap shaft, and be pretension platform near flap shaft one end, pre-pressing structure is provided with regulation structure at valve seat away from flap end; Flap shaft is arranged with spring, and spring one end is fixed on flap by the position structure in flap shaft, and the pretension platform of the other end and pre-pressing structure offsets, and described valve seat and valve body are connected and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313747.2U CN204664512U (en) | 2015-05-15 | 2015-05-15 | A kind of safety check |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313747.2U CN204664512U (en) | 2015-05-15 | 2015-05-15 | A kind of safety check |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204664512U true CN204664512U (en) | 2015-09-23 |
Family
ID=54134895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520313747.2U Expired - Fee Related CN204664512U (en) | 2015-05-15 | 2015-05-15 | A kind of safety check |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204664512U (en) |
-
2015
- 2015-05-15 CN CN201520313747.2U patent/CN204664512U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160515 |