CN203395201U - Stop check valve - Google Patents
Stop check valve Download PDFInfo
- Publication number
- CN203395201U CN203395201U CN201320526445.4U CN201320526445U CN203395201U CN 203395201 U CN203395201 U CN 203395201U CN 201320526445 U CN201320526445 U CN 201320526445U CN 203395201 U CN203395201 U CN 203395201U
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- China
- Prior art keywords
- valve
- feature
- seat
- rod
- screw down
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- 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 stop check valve. The stop check valve comprises a valve body. The stop check valve is characterized in that an inlet and an outlet is formed in the valve body in a matching manner; a valve seat is arranged between the inlet and the outlet in the matching manner; an opening from which a guide shaft can penetrate is formed in the middle of the valve seat; a valve clack matched and sealed with the valve seat is arranged above the valve seat and is connected to the lower end of a valve rod, and the upper end of the valve rod penetrates through a valve cover arranged on the valve body; an upper sealing seat, fillers, a filler pressing sleeve and a filler pressing plate are sequentially arranged at the joint of the valve rod and the valve cover from bottom to top; a hand wheel is connected to the upper part of the valve rod. The stop check valve is reasonable in structural design; the functions of a stop valve and a check valve are combined together, so that a mounting space is saved, the mounting cost is lowered, and the performance of the valve is improved.
Description
Technical field
The utility model belongs to valve technology field, relates to a kind of screw down nonreturn valve.
Background technique
Valve is industrial conventional a kind of pipe control equipment, and stop valve and safety check are two kinds of the most frequently used valves, and the function of traditional stop valve is end or connect ducted medium, and the function of safety check is that control media flows backwards.Sometimes in the process of using, need to install two kinds of valves simultaneously, so not only take up room, and installation cost is high.
Model utility content
The purpose of this utility model is to provide a kind of screw down nonreturn valve, has solved the technical problem that needs simultaneously to install stop valve and safety check in prior art.
The technological scheme that the utility model adopts is, this screw down nonreturn valve, comprise valve body, its feature is: on described valve body, be equipped with import, outlet, between import and outlet, be equipped with valve seat, the opening passing for the axis of guide is set in the middle of valve seat, valve seat top is provided with the flap that is mated sealing, flap connects the lower end of valve rod, the upper end of valve rod is through the valve gap that is arranged on valve body top, valve rod and position, valve gap connecting part set gradually upper seal support, filler, filler pressing sleeve, hold-down grid from the bottom to top, and valve rod top connects handwheel.
Optimization as technique scheme: valve seat is demountable structure.The inclined-plane that valve seat end face is big up and small down.
Further optimization as technique scheme: valve rod is connected with flap on-fixed.
Further optimization again as technique scheme: hold-down grid is connected with valve gap bolt.
Further optimization as technique scheme: be equipped with spiral wound gasket between valve gap and valve body.Valve gap is connected with valve body bolt.
As preferably: valve gap upper end is provided with Stem Mut and tightens screw, is equipped with hexagon nut on handwheel, hexagon nut below arranges plain cushion.
The beneficial effects of the utility model are: the utility model reasonable in design, the function of stop valve and safety check is combined, and saved installing space, reduced installation cost, improved valve performance.Valve gap can folding, is convenient to inner maintenance.Valve seat is demountable structure, is convenient to maintenance and changes.Extended the working life of valve.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram;
Wherein: 1 valve body, 2 valve seats, 3 flaps, 4 valve rods, 5 imports, 6 outlets, 7 spiral wound gaskets, 8 upper seal supports, 9 fillers, 10 filler pressing sleeves, 11 hold-down grids, 12 axis of guides, 13 openings, 14 valve gaps, 15 hexagon nuts, 16 plain washers, 17 handwheels, 18 Stem Muts, 19 mark closely screw.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Screw down nonreturn valve of the present utility model, comprise valve body 1, on valve body 1, be equipped with import 5, export 6, import 5 and 6 of outlets are equipped with valve seat 2, the opening 13 passing for the axis of guide 12 is set in the middle of valve seat 2, valve seat 2 tops are provided with the flap 3 that is mated sealing, flap 3 connects the lower end of valve rod 4, the upper end of valve rod 4 is through the valve gap 14 that is arranged on valve body 1 top, valve rod 4 sets gradually upper seal support 8, filler 9, filler pressing sleeve 10, hold-down grid 11 from the bottom to top with valve gap 14 positions, connecting part, and valve rod 14 tops connect handwheel 17.Valve seat 2 is demountable structure.The inclined-plane that valve seat 2 end faces are big up and small down.Valve rod 4 is connected with flap 3 on-fixeds.Hold-down grid 11 is connected with valve gap 14 bolts.1 of valve gap 14 and valve body are equipped with spiral wound gasket 7.Valve gap 14 is connected with valve body 1 bolt.Valve gap 14 upper ends are provided with Stem Mut 18 and mark closely screw 19, are equipped with hexagon nut 15 on handwheel 17, and hexagon nut 15 belows arrange plain washer 16.
When valve rod 4 declines, when flap 3 is pressed on valve seat 2, play stop valve effect, after valve rod 4 rises, flap 3 relies on the shutoff valve ports of conducting oneself with dignity, when medium is stop valve when import 5 enters, when medium is safety check while entering from exporting 6.Can change valve body 1 uninterrupted by the upper-lower position of regulating valve stem 4.Detachable valve seat 2, convenient for maintaining.
The utility model reasonable in design, combines the function of stop valve and safety check, has saved installing space, has reduced installation cost, has improved valve performance.Valve gap 14 can folding, is convenient to inner maintenance.Valve seat 2 is demountable structure, is convenient to maintenance and changes.Extended the working life of valve.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (8)
1. screw down nonreturn valve, comprise valve body (1), its feature is: on described valve body (1), be equipped with import (5), outlet (6), between import (5) and outlet (6), be equipped with valve seat (2), the opening (13) passing for the axis of guide (12) is set in the middle of valve seat (2), valve seat (2) top is provided with the flap (3) that is mated sealing, flap (3) connects the lower end of valve rod (4), the upper end of valve rod (4) is through the valve gap (14) that is arranged on valve body (1) top, valve rod (4) sets gradually upper seal support (8) from the bottom to top with valve gap (14) position, connecting part, filler (9), filler pressing sleeve (10), hold-down grid (11), valve rod (4) top connects handwheel (17).
2. screw down nonreturn valve according to claim 1, its feature is: described valve seat (2) is demountable structure.
3. screw down nonreturn valve according to claim 1, its feature is: the big up and small down inclined-plane of described valve seat (2) end face.
4. screw down nonreturn valve according to claim 1, its feature is: described valve rod (4) is connected with flap (3) on-fixed.
5. screw down nonreturn valve according to claim 1, its feature is: described hold-down grid (11) is connected with valve gap (14) bolt.
6. screw down nonreturn valve according to claim 1, its feature is: between described valve gap (14) and valve body (1), be equipped with spiral wound gasket (7).
7. screw down nonreturn valve according to claim 1, its feature is: described valve gap (14) is connected with valve body (1) bolt.
8. screw down nonreturn valve according to claim 1, its feature is: described valve gap (14) upper end is provided with Stem Mut (18) and marks closely screw (19), on handwheel (17), be equipped with hexagon nut (15), hexagon nut (15) below arranges plain washer (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320526445.4U CN203395201U (en) | 2013-08-27 | 2013-08-27 | Stop check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320526445.4U CN203395201U (en) | 2013-08-27 | 2013-08-27 | Stop check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395201U true CN203395201U (en) | 2014-01-15 |
Family
ID=49906734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320526445.4U Expired - Fee Related CN203395201U (en) | 2013-08-27 | 2013-08-27 | Stop check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395201U (en) |
-
2013
- 2013-08-27 CN CN201320526445.4U patent/CN203395201U/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: 20140115 Termination date: 20210827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |