CN204828680U - High -pressure connecting rod formula bellows stop valve - Google Patents
High -pressure connecting rod formula bellows stop valve Download PDFInfo
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- CN204828680U CN204828680U CN201520313998.0U CN201520313998U CN204828680U CN 204828680 U CN204828680 U CN 204828680U CN 201520313998 U CN201520313998 U CN 201520313998U CN 204828680 U CN204828680 U CN 204828680U
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- bellows
- valve
- rising stem
- open
- valve body
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Abstract
The utility model provides a high -pressure connecting rod formula bellows stop valve, includes valve body, disk seat, valve gap and hand wheel, be equipped with the bellows subassembly in the valve body, the bellows subassembly include case, bellows, bellows welding cover, welding bush, valve rod, bellows one end and valve rod link to each other, the other end links to each other with bellows welding cover, is equipped with the sealed pad of red copper between valve body and the bellows welding cover, disk seat and bellows welding cover between be equipped with sealed the pad, be equipped with filler pressure pad and filler between valve gap and the disk seat in proper order, be equipped with in the valve gap and open the rising stem, open rising stem one end and link to each other with the valve rod, open rising stem other end installation hand wheel, adopt the valve rod and open the rising stem and constitute the connecting rod formula and draw high the device, simultaneously through the sealed pad of red copper, bellows, the sealed quadruple of filling up and packing sealed has protected the valve rod and has opened the rising stem do not receive the erosion, assembly simultaneously and change more convenient, the leakproofness and high temperature resistant, high -pressure, corrosion behavior is better.
Description
Technical field
The utility model relates to a kind of stop valve technical field, specifically a kind of high-pressure connecting rod formula bellows stop valve.
Background technique
Bellows stop valve inside adopts bellows structure, and stainless bellows-welding is in valve rod lower end, and to prevent process fluid etch valve rod, the valve rod the other end is placed between valve body and valve gap and forms static seal.
Current bellows stop valve, substantially be bellows component and valve body by body top end face press seal gasket seal and the current bellows stop valve structure of China is single, under the working condition of low pressure, low temperature and security medium can only be applied in, and working life is short, be not suitable for high temperature, high pressure and the dangerous or pipeline that may damage environment, life and place.
Therefore promoting the sealability of bellows stop valve and protection valve rod, not weather be the key factor widening bellows stop valve application area, and the keying and the control gear that bellows stop valve are applied to poisonous, radioactivity in industrial pipeline and other pipeline or the hazardous medium such as inflammable and explosive become study hotspot.
Model utility content
The purpose of this utility model is to provide a kind of high-pressure connecting rod formula bellows stop valve; adopt valve rod and open rising stem and form linkage type and draw high device; the valve rod and open rising stem and do not weather by the quadruple seal protection of red copper sealing gasket, bellows, sealing gasket and filler simultaneously; assembling and change more convenient, sealing and high temperature resistant, high pressure, corrosivity are better.
Scheme for the utility model that solves the problem adopts:
A kind of high-pressure connecting rod formula bellows stop valve, comprise valve body, valve seat, valve gap and handwheel, described valve body both sides are provided with import and outlet, import and the outlet port of valve body are equipped with connecting tube, described connecting tube and valve body import and be provided with sealing gasket between exporting, connecting tube realizes being fixedly linked by attaching nut and valve body, bellows component is provided with in described valve body, described bellows component comprises spool, bellows, bellows-welding cover, welding lining, valve rod, described bellows one end is connected with valve rod, the other end overlaps with bellows-welding and is connected, valve rod is provided with between overlapping with bellows-welding and welds lining, red copper sealing gasket is provided with between valve body and bellows-welding overlap, described valve body top is provided with outside thread, upper internal threaded and lower internal thread is provided with in described valve seat, described lower internal thread and outside thread with the use of, sealing gasket is provided with between described valve seat and bellows-welding overlap, described valve gap outside is provided with outside thread, inside is provided with internal thread and bayonet lock, the outside thread of described valve gap and the upper internal threaded of valve seat with the use of, described valve seat outside is provided with locking nut, tightening retaining nuts is located, filler pressure pad and filler is provided with successively between valve gap and valve seat, be provided with in described valve gap and open rising stem, described rising stem outside of opening is provided with outside thread, by being connected with the screw-internal thread fit of valve gap, described rising stem one end of opening is connected with valve rod, open to be provided with between rising stem and valve rod and open rising stem pressure pad, open the rising stem the other end and handwheel is installed, handwheel is provided with cover type nut from top to bottom successively, locking nut, to carve characters nameplate, pad.
Above-mentioned a kind of high-pressure connecting rod formula bellows stop valve, wherein, described sealing gasket and filler are teflon material.
Above-mentioned a kind of high-pressure connecting rod formula bellows stop valve, wherein, described in open the outer diameter of rising stem consistent with the outer diameter of valve rod.
The beneficial effects of the utility model are:
A kind of high-pressure connecting rod formula bellows stop valve that the utility model provides, structure is simple, reasonable in design, adopt valve rod and open rising stem and form linkage type and draw high device, the outer diameter opening rising stem is consistent with the outer diameter of valve rod, make stability under loading and be convenient to assembling and change, reducing cost, valve rod and opening to be provided with between rising stem and to open rising stem pressure pad and make sealability better; By the double seal of red copper sealing gasket and bellows, bellows-welding cover protects valve rod and does not contact with transmission medium, and sealing gasket and filler open as ensure that while third and fourth layer of sealing the sealing and corrosion resistance that rising stem is connected with valve rod.The superiority of sealing gasket and filler material improves sealing and the serviceability of bellows stop valve.
If the utility model adopts the Seal Design red copper sealing gasket of quadruple and bellows to lose efficacy, sealing gasket and filler also can be avoided leaking, bellows is welded in the ride quality that valve rod keeps stable, avoid because valve plug vibration causes valve rod to vibrate, the structure that valve open stops back seal has not only cut off MEDIA FLOW effectively to bellows, alleviate the temperature of the upper components such as bellows, pressure influence and leakage factor, and limit the stroke of valve switch, increase the service life, avoid occurring the frequent phenomenon changed.
Accompanying drawing explanation
Fig. 1 is the utility model structural drawing.
Fig. 2 is the utility model part A partial enlarged drawing.
Fig. 3 is the utility model part B partial enlarged drawing.
Embodiment
As shown in the figure, a kind of high-pressure connecting rod formula bellows stop valve, comprise valve body 23, valve seat 21, valve gap 14 and handwheel 15, described valve body 23 both sides are provided with import 32 and outlet 33, the import 32 of valve body is equipped with connecting tube 1 with outlet 33 places, described connecting tube 1 and valve body 23 import and be provided with sealing gasket 2 between exporting, connecting tube 1 realizes being fixedly linked with valve body 23 by attaching nut 3, bellows component 24 is provided with in described valve body 23, described bellows component 24 comprises spool 4, bellows 5, bellows-welding cover 7, welding lining 8, valve rod 11, described bellows 5 one end is connected with spool 4, the other end and bellows-welding overlap 7 and are connected, described valve rod 11 is connected on spool 4 through bellows-welding cover 7 and bellows 5, valve rod 11 is provided with between overlapping 7 with bellows-welding and welds lining 8, valve body 23 and bellows-welding are provided with red copper sealing gasket 6 between overlapping 7, described valve body 32 top is provided with outside thread 31, upper internal threaded 29 and lower internal thread 30 is provided with in described valve seat 21, described lower internal thread 30 and outside thread 31 with the use of, described valve seat 21 and bellows-welding are provided with sealing gasket 22 between overlapping 7, described valve gap 14 outside is provided with outside thread 28, inside is provided with internal thread 26 and bayonet lock 27, the outside thread 28 of described valve gap 14 and the upper internal threaded 29 of valve seat 21 with the use of, described valve seat 21 outside is provided with locking nut 13, tightening retaining nuts 13 is located, filler pressure pad 10 and filler 9 is provided with successively between valve gap 14 and valve seat 21, be provided with in described valve gap 14 and open rising stem 12, described rising stem 12 outside of opening is provided with outside thread 25, by being connected with the internal thread 26 of valve gap 14, described rising stem 12 one end of opening is connected with valve rod 11, the outer diameter opening rising stem 12 is consistent with the outer diameter of valve rod 11, open to be provided with between rising stem 12 and valve rod 11 and open rising stem pressure pad 20, open rising stem 12 the other end and handwheel 15 is installed, handwheel 15 is provided with cover type nut 16 from top to bottom successively, locking nut 17, to carve characters nameplate 18, pad 19, described sealing gasket 2, 22 and filler 9 be teflon material.
Rotation hand wheel 15 drives and opens rising stem 12, opens rising stem 12 and is with ovable valve stem 11, and valve rod 11 drives the unlatching of bellows 5 extension and contraction control valve with closed.
The utility model adopts valve rod and opens rising stem and form linkage type and draw high device, the outer diameter opening rising stem is consistent with the outer diameter of valve rod, make stability under loading and be convenient to assembling and change, reducing cost, valve rod and opening to be provided with between rising stem and to open rising stem pressure pad and make sealability better; By the double seal of red copper sealing gasket and bellows; bellows-welding cover protects valve rod and does not contact with transmission medium; sealing gasket and filler open as ensure that while third and fourth layer of sealing the sealing and corrosion resistance that rising stem is connected with valve rod; if the Seal Design red copper sealing gasket of this quadruple and bellows inefficacy sealing gasket and filler also can be avoided leaking; the superiority of sealing gasket and filler material improves sealing and the serviceability of bellows stop valve, for keying and the control of poisonous, the medium such as radioactivity or nitrose.
Above are only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. a high-pressure connecting rod formula bellows stop valve, comprise valve body, valve seat, valve gap and handwheel, it is characterized by, described valve body both sides are provided with import and outlet, import and the outlet port of valve body are equipped with connecting tube, described connecting tube and valve body import and be provided with sealing gasket between exporting, connecting tube realizes being fixedly linked by attaching nut and valve body, bellows component is provided with in described valve body, described bellows component comprises spool, bellows, bellows-welding cover, welding lining, valve rod, described bellows one end is connected with valve rod, the other end overlaps with bellows-welding and is connected, valve rod is provided with between overlapping with bellows-welding and welds lining, red copper sealing gasket is provided with between valve body and bellows-welding overlap, described valve body top is provided with outside thread, upper internal threaded and lower internal thread is provided with in described valve seat, described lower internal thread and outside thread with the use of, sealing gasket is provided with between described valve seat and bellows-welding overlap, described valve gap outside is provided with outside thread, inside is provided with internal thread and bayonet lock, the outside thread of described valve gap and the upper internal threaded of valve seat with the use of, described valve seat outside is provided with locking nut, tightening retaining nuts is located, filler pressure pad and filler is provided with successively between valve gap and valve seat, be provided with in described valve gap and open rising stem, described rising stem outside of opening is provided with outside thread, by being connected with the screw-internal thread fit of valve gap, described rising stem one end of opening is connected with valve rod, open to be provided with between rising stem and valve rod and open rising stem pressure pad, open the rising stem the other end and handwheel is installed, handwheel is provided with cover type nut from top to bottom successively, locking nut, to carve characters nameplate, pad.
2. a kind of high-pressure connecting rod formula bellows stop valve as claimed in claim 1, it is characterized by, described sealing gasket and filler are teflon material.
3. a kind of high-pressure connecting rod formula bellows stop valve as claimed in claim 1, is characterized by, described in open the outer diameter of rising stem consistent with the outer diameter of valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313998.0U CN204828680U (en) | 2015-05-15 | 2015-05-15 | High -pressure connecting rod formula bellows stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313998.0U CN204828680U (en) | 2015-05-15 | 2015-05-15 | High -pressure connecting rod formula bellows stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828680U true CN204828680U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520313998.0U Active CN204828680U (en) | 2015-05-15 | 2015-05-15 | High -pressure connecting rod formula bellows stop valve |
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| Country | Link |
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| CN (1) | CN204828680U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003655A (en) * | 2015-05-15 | 2015-10-28 | 扬中市阀门厂有限公司 | High-pressure connecting rod type bellows globe valve |
| CN109578650A (en) * | 2018-12-05 | 2019-04-05 | 贵州大学 | It is a kind of to be convenient for fixed hydraulic valve |
-
2015
- 2015-05-15 CN CN201520313998.0U patent/CN204828680U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003655A (en) * | 2015-05-15 | 2015-10-28 | 扬中市阀门厂有限公司 | High-pressure connecting rod type bellows globe valve |
| CN109578650A (en) * | 2018-12-05 | 2019-04-05 | 贵州大学 | It is a kind of to be convenient for fixed hydraulic valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |