CN212251154U - Lengthened oxygen stop valve - Google Patents
Lengthened oxygen stop valve Download PDFInfo
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- CN212251154U CN212251154U CN202020958464.4U CN202020958464U CN212251154U CN 212251154 U CN212251154 U CN 212251154U CN 202020958464 U CN202020958464 U CN 202020958464U CN 212251154 U CN212251154 U CN 212251154U
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Abstract
The utility model discloses an extension oxygen stop valve, include the valve body, set up the runner in the valve body and set up in the valve gap of valve body, be equipped with the installation cavity of intercommunication runner in the valve body, the valve gap top is equipped with the extension pipe, be equipped with the extension valve rod that passes the valve gap and extend into the installation cavity in the extension pipe, be equipped with the valve clack in the installation cavity, the cooperation of sliding is used for guiding the valve clack towards runner reciprocating motion between valve clack and the installation cavity wall, be equipped with the linkage subassembly of dismantling that is used for driving the valve clack removal between extension valve rod and the valve clack, the top of extension pipe is equipped with the support, rotate on the support and be provided with the hand wheel with extension valve rod threaded connection, be equipped with seal assembly between support and the. The utility model has the advantages of it is following and effect: the utility model discloses sealed nature is good, cost of maintenance is low and long service life.
Description
Technical Field
The utility model relates to a valve, in particular to extension oxygen stop valve.
Background
The use of a shut-off valve as an on-off device on an oxygen supply line has many particularly stringent requirements compared to other common valves. Because oxygen is a flammable and explosive hazardous material, it is necessary to prevent leakage, static electricity, and spark to avoid accidents. The safety technical requirements of the oxygen stop valve are national standard GB 169912-1997 oxygen and related gas safety technical regulations, and the design, manufacture and inspection of the oxygen stop valve are according to mechanical industry standard JB/T10530-2005 stop valve for oxygen.
Most are fixed connection between the valve rod of current oxygen stop valve and the valve clack, because the valve clack receives fluidic long-term scouring and adds the wearing and tearing on the sealing at the in-process that uses, lead to the valve clack to very easily take place to damage at the in-process that uses, and fixed connection's mode just can not be changed the valve clack alone to it is higher to lead to current oxygen stop valve cost of maintenance. And the flange on the current oxygen stop valve and the valve body are all realized fixedly through the welded mode, and the welded mode of fixing takes place deformation or even fracture very easily under extremely abominable operating mode to influence the life of oxygen stop valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an add long oxygen stop valve, this add long oxygen stop valve's leakproofness is good, cost of maintenance is low and long service life.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an extra long oxygen stop valve, includes the valve body, sets up the runner in the valve body and sets up in the valve gap of valve body, be equipped with the installation cavity of intercommunication runner in the valve body, the valve gap top is equipped with the extension pipe, be equipped with the extra long valve rod that passes the valve gap and extend into the installation cavity in the extension pipe, be equipped with the valve clack in the installation cavity, the cooperation of sliding is used for guiding the valve clack towards runner reciprocating motion between valve clack and the installation cavity wall, be equipped with the linkage assembly dismantled that is used for driving the valve clack removal between extension valve rod and the valve clack, the top of extension pipe is equipped with the support, rotate on the support be provided with the hand wheel with extra long valve rod threaded connection, be equipped with.
Through adopting above-mentioned technical scheme, be used for realizing the linkage between valve clack and the extension valve rod through dismantling the linkage subassembly for the operation is opened and close to extension valve rod can drive the valve clack completion. When the valve clack is damaged and needs to be maintained and replaced, the lengthened valve rod and the valve clack are separated through the detachable linkage assembly, so that the valve clack is replaced independently, and the maintenance cost of the valve is reduced. The cooperation between the extension pipe and the sealing assembly increases the flow path of gas and reduces the pressure, thereby improving the sealing performance of the valve. Through set up the mode of becoming an organic whole between flange and the valve body and increase structural strength between the two for this valve can adapt to more abominable service condition, promotes the life of valve.
Further setting the following steps: the detachable linkage assembly comprises a clamping groove arranged on the valve clack and a clamping block arranged on the lengthened valve rod and clamped with the clamping groove, when the clamping block is clamped into the clamping groove, the lengthened valve rod and the valve clack form linkage to be used for driving the valve clack to slide, and the clamping block is clamped into the clamping groove in a direction perpendicular to the sliding direction of the valve clack.
Through adopting above-mentioned technical scheme, the fixture block card advances the draw-in groove, and cooperation through fixture block and draw-in groove between the two makes extension valve rod and valve clack constitute spacingly between the two to make extension valve rod can drive the valve clack and slide in the installation cavity, and through the spacing that constitutes between the two of installation cavity and valve clack, make when the valve clack is located the installation cavity, the fixture block can not break away from the draw-in groove. When the valve clack is separated from the installation cavity, the clamping block can be taken out from the clamping groove, and the separation between the lengthened valve rod and the valve clack is realized.
Further setting the following steps: the sealing assembly comprises a sealing filler arranged between the support and the lengthened valve rod, a filler pressing sleeve sleeved on the lengthened valve rod and used for extruding the sealing filler, and a filler pressing plate sleeved on the lengthened valve rod and located on one side, back to the sealing filler, of the filler pressing sleeve, wherein a bolt for driving the filler pressing plate to move towards the filler pressing sleeve is connected between the filler pressing plate and the support.
Through adopting above-mentioned technical scheme, the rotation bolt drive packing clamp plate passes through packing and presses the cover extrusion sealing packing for the clearance between sealed extension valve rod that sealing packing can be better and the support, and can adjust the sealed grade of sealing packing, on the basis of guaranteeing that sealing packing reaches best encapsulated situation, guarantee the low moment of torsion rotation of extension valve rod, thereby reach best encapsulated situation.
Further setting the following steps: the support is provided with a transparent partition board used for separating the inner cavity of the support from the outside in a sealing manner.
Through adopting above-mentioned technical scheme, transparent baffle's setting prevents that external particle impurity from getting into inside the explosion that arouses of support.
Further setting the following steps: and a sealing gasket is arranged between the valve cover and the valve body.
Through adopting above-mentioned technical scheme, the leakproofness between promotion valve gap and the valve body is sealed in the setting of seal gasket.
Further setting the following steps: and the positions where the valve clack is matched with the valve body to form sealing are provided with wear-resistant layers.
Through adopting above-mentioned technical scheme, the life that sets up the sealed face position of promotion valve clack and valve body of wearing layer.
To sum up, the utility model discloses following beneficial effect has: the utility model discloses sealed nature is good, cost of maintenance is low and long service life.
Drawings
FIG. 1 is a sectional view of the embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a partial structural diagram of the embodiment.
In the figure: 1. a valve body; 2. a flow channel; 3. a valve cover; 4. a mounting cavity; 5. lengthening a pipe; 6. lengthening the valve rod; 7. a valve flap; 8. a support; 9. a hand wheel; 10. a connecting flange; 11. a card slot; 12. a clamping block; 13. sealing and filling; 14. pressing and sleeving the filler; 15. a packing press plate; 16. a bolt; 17. a transparent partition; 18. sealing gaskets; 19. and a wear-resistant layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 3, an extended oxygen shutoff valve includes a valve body 1, a flow passage 2 opened inside the valve body 1, and a valve cover 3 disposed above the valve body 1. Be equipped with the installation cavity 4 of intercommunication external world and runner 2 in the valve body 1, installation cavity 4 top is located to valve gap 3 lid, and fixing bolt passes valve gap 3 and valve body 1 threaded connection and is used for realizing that valve gap 3 is fixed on valve body 1. The two ends of the valve body 1 are integrally provided with connecting flanges 10, and a sealing gasket 18 is arranged between the valve cover 3 and the valve body 1.
An extension pipe 5 vertically arranged is integrally arranged above the valve cover 3, a support 8 is integrally arranged above the extension pipe 5, an extension valve rod 6 is arranged in the extension pipe 5, the lower end of the extension valve rod passes through the valve cover 3 and extends into the installation cavity 4, and the upper end of the extension valve rod 6 passes through the support 8. The valve clack 7 is arranged in the installation cavity 4, and the valve clack 7 is in sliding fit with the wall of the installation cavity 4 and used for guiding the valve clack 7 to reciprocate towards the flow channel 2; a detachable linkage component for driving the valve clack 7 to move is arranged between the lengthened valve rod 6 and the valve clack 7.
The detachable linkage assembly comprises a clamping groove 11 arranged on the valve clack 7 and a clamping block 12 which is integrally arranged on the lengthened valve rod 6 and is clamped with the clamping groove 11, and when the clamping block 12 is clamped into the clamping groove 11, the lengthened valve rod 6 and the valve clack 7 form linkage to drive the valve clack 7 to slide; the direction of the clamping block 12 clamped into the clamping groove 11 is perpendicular to the sliding direction of the valve clack 7. The valve clack 7 is matched with the valve body 1 to form a sealing position, and the valve clack 7 is provided with a wear-resistant layer 19, and the wear-resistant layer 19 is made of nickel-based alloy and is fixed on the valve body 1 and the valve clack 7 respectively in a build-up welding mode.
The hand wheel 9 which is connected with the lengthened valve rod 6 in a threaded mode is arranged on the support 8 in a rotating mode, a sealing assembly is arranged between the support 8 and the lengthened valve rod 6 and comprises a sealing filler 13 arranged between the support 8 and the lengthened valve rod 6, a filler pressing sleeve 14 which is sleeved on the lengthened valve rod 6 and located above the sealing filler 13 and used for extruding the sealing filler 13 and a filler pressing plate 15 which is sleeved on the lengthened valve rod 6 and located on the filler pressing sleeve 14, a bolt 16 which drives the filler pressing plate 15 to move towards the filler pressing sleeve 14 is connected between the filler pressing plate 15 and the support 8, and the bolt 16 penetrates through the filler pressing plate 15 and is in threaded connection with the support 8. The support 8 is provided with a transparent partition plate 17 for separating the inner cavity of the support 8 from the outside in a sealing manner, and the transparent partition plate 17 is fixedly arranged on the support 8.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a extension oxygen stop valve, includes valve body (1), sets up runner (2) in valve body (1) and sets up in valve gap (3) of valve body (1), be equipped with installation cavity (4) of intercommunication runner (2) in valve body (1), its characterized in that: valve gap (3) top is equipped with extension pipe (5), be equipped with extension valve rod (6) that pass valve gap (3) and extend into installation cavity (4) in extension pipe (5), be equipped with valve clack (7) in installation cavity (4), the cooperation of sliding between valve clack (7) and installation cavity (4) wall is used for guiding valve clack (7) towards runner (2) reciprocating motion, be equipped with the linkage subassembly of dismantling that is used for driving valve clack (7) to remove between extension valve rod (6) and valve clack (7), the top of extension pipe (5) is equipped with support (8), rotate on support (8) and be provided with hand wheel (9) with extension valve rod (6) threaded connection, be equipped with seal assembly between support (8) and extension valve rod (6), the both ends of valve body (1) are all integrative to be provided with flange (10).
2. The extended oxygen shutoff valve of claim 1, wherein: can dismantle linkage assembly including setting up in draw-in groove (11) of valve clack (7) and setting up in extension valve rod (6) and with draw-in groove (11) block (12) of card cooperation, work as when draw-in groove (11) is gone into in block (12), extension valve rod (6) and valve clack (7) constitute the linkage and are used for driving valve clack (7) and slide, the direction that draw-in groove (11) were gone into in block (12) card and the slip direction mutually perpendicular of valve clack (7).
3. The extended oxygen shutoff valve of claim 1, wherein: the sealing assembly comprises a sealing filler (13) arranged between a support (8) and an extension valve rod (6), a filler pressing sleeve (14) sleeved on the extension valve rod (6) and used for extruding the sealing filler (13), and a filler pressing plate (15) sleeved on the extension valve rod (6) and located on one side, back to the sealing filler (13), of the filler pressing sleeve (14), wherein a bolt (16) for driving the filler pressing plate (15) to move towards the filler pressing sleeve (14) is connected between the filler pressing plate (15) and the support (8).
4. The extended oxygen shutoff valve of claim 1, wherein: the support (8) is provided with a transparent partition plate (17) for separating the inner cavity of the support (8) from the outside in a sealing way.
5. The extended oxygen shutoff valve of claim 1, wherein: and a sealing gasket (18) is arranged between the valve cover (3) and the valve body (1).
6. The extended oxygen shutoff valve of claim 1, wherein: and the valve clack (7) is matched with the valve body (1) to form a sealing position and is provided with a wear-resistant layer (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020958464.4U CN212251154U (en) | 2020-05-29 | 2020-05-29 | Lengthened oxygen stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020958464.4U CN212251154U (en) | 2020-05-29 | 2020-05-29 | Lengthened oxygen stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212251154U true CN212251154U (en) | 2020-12-29 |
Family
ID=73978231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020958464.4U Active CN212251154U (en) | 2020-05-29 | 2020-05-29 | Lengthened oxygen stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212251154U (en) |
-
2020
- 2020-05-29 CN CN202020958464.4U patent/CN212251154U/en active Active
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