CN2269509Y - Leak-free stop valve - Google Patents
Leak-free stop valve Download PDFInfo
- Publication number
- CN2269509Y CN2269509Y CN 96226364 CN96226364U CN2269509Y CN 2269509 Y CN2269509 Y CN 2269509Y CN 96226364 CN96226364 CN 96226364 CN 96226364 U CN96226364 U CN 96226364U CN 2269509 Y CN2269509 Y CN 2269509Y
- Authority
- CN
- China
- Prior art keywords
- valve
- screw mandrel
- utility
- pressure ring
- model
- 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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Abstract
The utility model discloses a leak-free stop valve, belonging to the technical field of poppet valves. The utility model comprises a hand wheel, a valve cover, screw rods, a valve clack, and a valve body. The lower parts of a valve rod and a valve cover are fixed with annular press rings; the valve rod is connected with the screw rod via threads; the outer edges of the press rings and the bottom of a bulge are fixed with membranes; the screw rods on the lower parts of the membranes are connected with the valve clack via threads. When the valve clack moves up and down, the membranes, the screw rods, and the valve body always keep the reliable static sealing state, and the stop valve has no leakage. The utility model which has the advantages of simple structure, long service life, and low manufacture cost is suitable for running water pipelines and non-corrosive liquid pipelines.
Description
The utility model belongs to the poppet valve field.
In the prior art, be used for the stop valve that liquid such as tap water uses, majority moves up and down screw mandrel by rotation hand wheel and finishes the work, its deficiency is that swing arm and seal ring all bear pressure, with the passing of time after the wearing and tearing, the phenomenon of liquid from overflowing between screw mandrel and the seal ring can take place, thereby not only influence quality of product, and make product shortening in working life.
The purpose of this utility model provides a kind of non-leakage stopping valve that can overcome above-mentioned deficiency.
The purpose of this utility model is achieved in that a kind of non-leakage stopping valve, comprise handwheel, valve gap, screw mandrel, flap, valve body, the fixing ring-type pressure ring in the bottom of valve rod and valve gap, the outer rim of pressure ring is fixedlyed connected with the valve gap bottom, and the inner edge of pressure ring is fixedlyed connected with the bottom of valve rod, and valve rod is connected with wire rod thread, middle part at screw mandrel is provided with annular protrusion, projection can be embedded in the pressure ring center, and fixing every mould in the pressure ring outer rim and the bottom of projection, screw mandrel is threaded with flap in the barrier film bottom.
The utility model has the advantages that: adopt fixedly barrier film of pressure ring, when flap moved up and down, barrier film deformed and barrier film and screw mandrel, valve body remain reliable static seal state, guarantees that stop valve does not have leakage.Because barrier film can adopt plastic cement to make, not fragile in restricted portion, thereby can prolong product working life.The utility model is simple in structure, easy processing, and low cost of manufacture is applicable to that the pipeline of water supply pipe and non-corrosiveness liquid uses.
Fig. 1 is the utility model structural representation.
Below in conjunction with accompanying drawing the utility model is described in further details.
The utility model comprises handwheel 9, valve gap 7, screw mandrel 3, flap 2, valve body 1, and valve rod 8 is threaded with screw mandrel 3, and the fixing ring-type pressure ring 5 in the bottom of valve rod 8 and valve gap 7 moves axially to control screw mandrel 3.The outer rim of pressure ring 5 is fixedlyed connected with valve gap 7 bottoms, the inner edge of pressure ring 5 fixedly connected with the bottom of valve rod 8 and with the projection 6 of screw mandrel 3 movingly, promptly when screw mandrel 3 moved up, projection 6 can be embedded in the center of pressure ring 5.Fixing every mould 4 in pressure ring 5 outer rims and the bottom of projection 6, the outer rim of barrier film 4 combines with valve body 1 sealing by the spinning of pressure ring 5, and the inner edge of barrier film 4 compresses by screw mandrel 3 and flap 2, and screw mandrel 3 is threaded with flap 2.Barrier film 4 adopts plastic cement to make, and its annular radii is a bit larger tham screw mandrel 3 and valve body 1 spacing, to guarantee that the inside and outside edge compacted position of barrier film 4 is constant when flap 2 leaves valve port.Usually for civilian running water pipe, flap 2 lifting heights are 2～4mm, can satisfy normal water consumption, when opening stop valve, rotation hand wheel 9 makes screw mandrel 3 drive flap 2 and moves up, because barrier film 4 is fixedlyed connected with screw mandrel 3, barrier film 4 deforms, the inner edge of barrier film 4 also moves up with screw mandrel 3, and this process septation 4 is in the stationary fit state all the time with screw mandrel 3, valve body 1, like this, in stop valve, form the secondary seal space, be that pressure ring 5 forms the primary seal space with valve gap 7, barrier film 4 forms the secondary seal space with pressure ring 5, thereby liquid can not be leaked.When closing stop valve, screw mandrel 3 drive flaps 2 move down seals valve port, and the inner edge of barrier film 4 also moves down thereupon, and forms three grades of seal spacies between flap 2 and barrier film 4, guarantees that stop valve does not have leakage.
Claims (1)
1. non-leakage stopping valve, comprise handwheel (9), valve gap (7), screw mandrel (3), flap (2), valve body (1), it is characterized in that: fixing ring-type pressure ring (5) in the bottom of valve rod (8) and valve gap (7), the outer rim of pressure ring (5) is fixedlyed connected with valve gap (7) bottom, the inner edge of pressure ring (5) is fixedlyed connected with the bottom of valve rod (8), valve rod (8) is threaded with screw mandrel (3), be provided with annular protrusion (6) at the middle part of screw mandrel (3), projection (6) can be embedded in pressure ring (5) center, fixing in pressure ring (5) outer rim and the bottom of projection (6) every mould (4), be threaded with flap (2) at barrier film (4) bottom screw mandrel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226364 CN2269509Y (en) | 1996-05-24 | 1996-05-24 | Leak-free stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226364 CN2269509Y (en) | 1996-05-24 | 1996-05-24 | Leak-free stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2269509Y true CN2269509Y (en) | 1997-12-03 |
Family
ID=33904761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96226364 Expired - Fee Related CN2269509Y (en) | 1996-05-24 | 1996-05-24 | Leak-free stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2269509Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405894A (en) * | 2014-11-27 | 2015-03-11 | 周孝银 | Valve and valve core dismounting method |
-
1996
- 1996-05-24 CN CN 96226364 patent/CN2269509Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405894A (en) * | 2014-11-27 | 2015-03-11 | 周孝银 | Valve and valve core dismounting method |
| CN104405894B (en) * | 2014-11-27 | 2016-09-21 | 周孝银 | A kind of valve |
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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 |