CN204042038U - Wear-resisting wedge-type knife gate valve - Google Patents
Wear-resisting wedge-type knife gate valve Download PDFInfo
- Publication number
- CN204042038U CN204042038U CN201420283096.2U CN201420283096U CN204042038U CN 204042038 U CN204042038 U CN 204042038U CN 201420283096 U CN201420283096 U CN 201420283096U CN 204042038 U CN204042038 U CN 204042038U
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- China
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- valve
- type
- wedge
- plate
- knife gate
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Abstract
The utility model relates to valve field, specifically disclose a kind of wear-resisting wedge-type knife gate valve, comprise drive unit, valve gap, valve rod, valve plate and valve body, described drive unit is arranged on above valve gap, valve body is arranged on below valve gap, the valve rod of described drive unit drive installation in valve gap, and valve rod connects valve plate by pin, described valve plate is the wedge-type valve plate of a face tilt, is provided with valve seat in the non-inclined face of wedge-type valve plate; The fluid medium channel wall of body cavity is provided with protecting cover, and the external diameter of protecting cover is less than the internal diameter of valve seat.It is stressed that this knife gate valve adopts wedge-type valve plate effectively to improve valve plate on the one hand, makes sealing more reliable, and reduce the wearing and tearing of valve seat; Adopt the inwall of the effective barrier fluid of protecting cover to valve body and the impact wear of valve seat on the other hand; Also arranging waterpower type dump tank prevents particulate matter from entering between valve seat and valve body, further reduces wearing and tearing, significantly improves the working life of knife gate valve.
Description
Technical field
The utility model relates to a kind of valve, specifically a kind of wear-resisting wedge-type knife gate valve.
Background technique
Knife gate valve is the abbreviation of wafer type plate valve, and this kind of valve is short with its structure length, lightweight, and installation and maintenance are conveniently famous, are used for greatly using in low pressure pipeline transporting system.Its valve body inner side surface of the knife gate valve occurred in the market is concave spherical surface shape, seal ring and valve body inner side surface be combined into convex spherical shape, seal ring is placed in inside valve body, serves as a contrast close with sphere activity.But this knife gate valve is in the pipe-line transportation system of sewage treatment, food and drink processing, chemical enterprise, need in pipeline to carry flowing medium of different nature, material wherein containing various easy precipitation and easily to flashboard wear particle thing, therefore in use, particularly valve is when closing, flashboard is easily stopped by the particulate matter accumulated, and flashboard is in state of wear all the time.
Model utility content
The purpose of this utility model is to provide a kind of good seal performance and the nonabradable wear-resisting wedge-type knife gate valve of valve seat.
For achieving the above object, the utility model provides following technological scheme:
A kind of wear-resisting wedge-type knife gate valve, comprise drive unit, valve gap, valve rod, valve plate and valve body, described drive unit is arranged on above valve gap, valve body is arranged on below valve gap, the valve rod of described drive unit drive installation in valve gap, valve rod connects valve plate by pin, and described valve plate is the wedge-type valve plate of a face tilt, is provided with valve seat in the non-inclined face of wedge-type valve plate; The fluid medium channel wall of body cavity is provided with protecting cover, and the external diameter of protecting cover is less than the internal diameter of valve seat.
As further program of the utility model: below wedge-type valve plate valve body on be provided with waterpower type dump tank.
Compared with prior art, the beneficial effects of the utility model are: it is stressed that this knife gate valve adopts wedge-type valve plate can effectively improve valve plate on the one hand; During closedown, increase seal pressure downwards, make sealing more reliable; During unlatching, reduce the frictional force between valve seat and valve body, reduce the wearing and tearing of valve seat, increase the working life of knife gate valve; Adopt on the other hand protecting cover can the effectively inwall of barrier fluid to valve body and the impact wear of valve seat; Also arranging waterpower type dump tank prevents particulate matter from entering between valve seat and valve body, further reduces wearing and tearing, significantly improves the working life of knife gate valve.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of wear-resisting wedge-type knife gate valve;
Fig. 2 is the A portion structure for amplifying schematic diagram in Fig. 1;
In figure: 1-drive unit, 2-valve gap, 3-valve rod, 4-wedge-type valve plate, 5-valve body, 6-waterpower type dump tank, 7-pin, 8-valve seat, 9-protecting cover.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, in the utility model embodiment, a kind of wear-resisting wedge-type knife gate valve, comprise drive unit 1, valve gap 2, valve rod 3, valve plate and valve body 5, described drive unit 1 is arranged on above valve gap 2, valve body 5 is arranged on below valve gap 2, the valve rod 3 of described drive unit 1 drive installation in valve gap 2, valve rod 3 connects valve plate by pin 7, described valve plate is the wedge-type valve plate 4 of a face tilt, valve seat 8 is provided with in the non-inclined face of wedge-type valve plate 4, wedge-type valve plate 4 is adopted can effectively to improve valve plate stressed, reduce the frictional force between valve seat 8 and valve body 5, reduce the wearing and tearing of valve seat 8, increase the working life of knife gate valve, the fluid medium channel wall of valve body 5 inner chamber is provided with protecting cover 9, and the external diameter of protecting cover 9 is less than the internal diameter of valve seat 8, adopt protecting cover 9 can effectively barrier fluid to the impact wear of the inwall of valve body 5 and valve seat 8, the working life of growth knife gate valve, below wedge-type valve plate 4 valve body 5 on be provided with waterpower type dump tank 6, waterpower type dump tank 6 can effectively prevent particulate matter from entering between valve seat 8 and valve body 5, further reduces wearing and tearing, improves the working life of knife gate valve.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any reference character in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technological scheme in each embodiment also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (2)
1. a wear-resisting wedge-type knife gate valve, comprise drive unit (1), valve gap (2), valve rod (3), valve plate and valve body (5), described drive unit (1) is arranged on valve gap (2) top, valve body (5) is arranged on valve gap (2) below, the valve rod (3) of described drive unit (1) drive installation in valve gap (2), valve rod (3) connects valve plate by pin (7), it is characterized in that, described valve plate is the wedge-type valve plate (4) of a face tilt, is provided with valve seat (8) in the non-inclined face of wedge-type valve plate (4); The fluid medium channel wall of valve body (5) inner chamber is provided with protecting cover (9), and the external diameter of protecting cover (9) is less than the internal diameter of valve seat (8).
2. wear-resisting wedge-type knife gate valve according to claim 1, is characterized in that, wedge-type valve plate (4) below valve body (5) on be provided with waterpower type dump tank (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283096.2U CN204042038U (en) | 2014-05-30 | 2014-05-30 | Wear-resisting wedge-type knife gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283096.2U CN204042038U (en) | 2014-05-30 | 2014-05-30 | Wear-resisting wedge-type knife gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204042038U true CN204042038U (en) | 2014-12-24 |
Family
ID=52242706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420283096.2U Expired - Fee Related CN204042038U (en) | 2014-05-30 | 2014-05-30 | Wear-resisting wedge-type knife gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204042038U (en) |
-
2014
- 2014-05-30 CN CN201420283096.2U patent/CN204042038U/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: 20141224 Termination date: 20150530 |
|
| EXPY | Termination of patent right or utility model |