CN203718092U - Double-seal two-way telescopic loose joint stop valve - Google Patents
Double-seal two-way telescopic loose joint stop valve Download PDFInfo
- Publication number
- CN203718092U CN203718092U CN201420089663.0U CN201420089663U CN203718092U CN 203718092 U CN203718092 U CN 203718092U CN 201420089663 U CN201420089663 U CN 201420089663U CN 203718092 U CN203718092 U CN 203718092U
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- valve
- valve body
- water outlet
- valve rod
- double
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000000945 filler Substances 0.000 claims abstract description 12
- 238000012856 packing Methods 0.000 claims description 13
- 210000000476 body water Anatomy 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Details Of Valves (AREA)
- Pipe Accessories (AREA)
Abstract
The utility model discloses a double-seal two-way telescopic loose joint stop valve which is small in opening and closing torque, simple in structure, good in valve rod sealing performance, long in service life, compensable for pipelines, adjustable for the lengths of two ends of a valve body, and easy to dismount and mount. The double-seal two-way telescopic loose joint stop valve comprises a valve body, a valve rod, a valve cover, a water pressing plate, a pressing cap, a filler and a hand wheel, wherein a water inlet, a water outlet and a valve port for a medium to flow through are formed in the valve body; a sealing gasket is arranged between the upper part of the valve body and the lower part of the valve cover; the water pressing plate is mounted at the lower end of the valve rod and positioned inside a valve cavity of the valve body, and corresponds to the valve port; the upper end of the valve rod penetrates through the valve cover and the pressing cap, and is connected with the hand wheel; the filler for sealing is arranged between the inner wall of the upper part of the valve cover and the valve rod; the upper part of the valve cover is in threaded connection with the pressing cap; a gasket is arranged between the pressing cap and the filler; a clamping groove is formed in the free end with the water inlet of the valve body; another clamping groove is also formed in the free end with the water outlet of the valve body; check rings are arranged inside the clamping grooves in the water inlet and the water outlet of the valve body; a slidable telescopic pipe is arranged between the water inlet and the water outlet of the valve body; an O-shaped seal ring is further arranged between the valve rod and the valve cover.
Description
Technical field
The utility model relates to a kind of fluid control valve, relates in particular to a kind of double-sealing bi-directional expansion loose joint stop valve.
Background technique
Double-sealing bi-directional expansion loose joint stop valve, also be pipe valve, be installed in pipeline circulation or cut-off for pilot line medium, in function aspects, also there is current limliting regulating action, a kind of " stop valve " that existing stop valve Chinese Patent Application No. as open on August 30th, 2011 is 201120323526.5 comprises valve body 1 ' as Fig. 2, flap 2 ', valve rod 3 ', valve gap 5 ', pressure cap 8 ' and handwheel 9 ', described valve body 1 ' is provided with the import of medium circulation, outlet and valve port, valve body 1 ' top is connected with valve gap 5 ' lower thread, and the junction plane of valve body 1 ' top and valve gap 5 ' bottom is provided with pad 4 ', make both better tightness.Flap 2 ' is loaded on valve rod 3 ' lower end and is placed in valve body 1 ' valve pocket, and corresponding with valve port, valve rod 3 ' upper end is through valve gap 5 ' and pressure cap 8 ', and be fixedly connected with handwheel 9 ' by hexagon nut 11 ', handwheel 9 ' above and between hexagon nut 11 ' is provided with a label 10 ', and valve rod 3 ' is threaded with valve gap 5 ', makes valve rod 3 ' to make rotary lifting movement along valve gap 5 ', with the flap 2 ' of ovable valve stem 3 ' lower end, do elevating movement, for opening and closing valve body 1 ' valve port simultaneously.Between valve gap 5 ' upper inside wall and valve rod 3 ', be provided with filler 6 ', valve gap 5 ' top is threaded with pressure cap 8 ', between pressure cap 8 ' and filler 6 ', be provided with a packing ring 7 ', by screwing pressure cap 8 ', make packing ring 7 ' compressible filler 6 ' reach sealing purpose, this sealing structure adopts single Seal Design, because the keying moment of stop valve is large, valve stem seal place machining accuracy more coarse and easily scratch, use often to occur the phenomenon of dielectric leakage of a specified duration, exist working life short, the phenomenon that sealing effect is bad, some special industries is carried poisonous and harmful substance by pipeline, the leakage of stop valve medium also can endanger environment and people's physical and mental health, also have and when handwheel opens or cuts out rotation, easily cause that screwing loosening causing of pressure cap seals and occur serious leakage on stop valve, cause compared with this problem of multi-user feedback, to user, bring heavy losses, bring good economic benefit can not to user and society, existing stop valve body two ends do not have Expansion loose joint function, after finding to install, pipeline falls short of, the one, need to increase pipeline, increase the junction point of pipeline simultaneously, and increase the hidden danger of leaking, the 2nd, need to change sufficiently long pipeline, serious waste material now, increase cost, existing stop valve body is fixed installation formula, when installing and using, the length of regulation valve body according to actual needs, in using scope, be restricted, in addition, when this stop valve is installed along wall, stop valve need be done 360 degree repeat rotation tighten, can cause that other install pipeline and occur loosening, impact is leaked, and be subject to the restriction that wall gap is few, install, when changing and keeping in repair, need first unload valve gap and the opening device of valve body top, install, change extremely inconvenient, make troubles and lose to production and workmen, also have in the place of the application current limliting of stipulating, stop valve can play metering function and gate valve does not have current limliting and regulatory function.
Summary of the invention
For the problem of above-mentioned existence, the utility model provides a kind of keying moment little, simple in structure, valve stem seal is good, long service life, compensation of pipeline, valve body two ends length is adjustable, remove and install and be easy to double-sealing bi-directional expansion loose joint stop valve for solving this technical problem, the utility model is taked following scheme: a kind of double-sealing bi-directional expansion loose joint stop valve, comprises valve body, valve rod, valve gap, water squeezing plate, pressure cap, filler and handwheel, described valve body is provided with the water intake of medium circulation, water outlet and valve port, between valve body top and bonnet lower, be provided with gasket seal, water squeezing plate is loaded on valve rod lower end and is placed in valve body valve pocket, and corresponding with valve port, valve rod upper end is through valve gap and pressure cap, and be connected with handwheel, between valve gap upper inside wall and valve rod, be provided with stuffing box packing, valve gap top adopts and is threaded with pressure cap, between pressure cap and filler, be provided with a packing ring, the free end of described valve inleting water mouth is provided with draw-in groove, is provided with equally draw-in groove on the free end of described valve body water outlet, and described back-up ring is located at valve body and is entered, in water outlet draw-in groove, described Slidable telescopic pipe is located at valve body and is entered, between water outlet, between described valve rod and valve gap, be also provided with an O RunddichtringO.
Further improved: described O RunddichtringO is one, is located at the below that is positioned at stuffing box packing between valve rod and valve gap.
Further improved: described telescopic pipe end is all respectively provided with pipe and connects nut, the described telescopic pipe the other end is respectively provided with two O RunddichtringOs.
By adopting aforementioned techniques scheme, the beneficial effects of the utility model are: a kind of double-sealing bi-directional expansion loose joint stop valve of the present utility model, the below that is positioned at stuffing box packing between described valve rod and valve gap is also provided with O RunddichtringO, play the effect of double-sealing, the sealability of valve rod is improved, and has reinforced the sealing defence line of stop valve, O RunddichtringO has also reduced the frictional force of valve stem seal face simultaneously, make to open and close moment and reduce, there is laborsaving, the good airproof performance of keying, the advantage of long service life.Further improved: the free end of described valve inleting water mouth is provided with draw-in groove, on the free end of described valve body water outlet, be provided with equally draw-in groove, described back-up ring is located at valve body and is entered, in water outlet draw-in groove, described Slidable telescopic pipe is located at valve body and is entered, between water outlet, adopt back-up ring design to block telescopic pipe, can not produce the telescopic pipe phenomenon that is stuck, easy for installation simple, enhance productivity, greatly reduce defect rate, described telescopic pipe end is all respectively provided with pipe and connects nut, when changing and keeping in repair gate valve, without 360 degree, repeat to rotate way gate, only need tighten or unscrew union nut just can easily complete installation or removal, be not subject to the restriction that wall gap is few, bring convenience to production and workmen's work, can reduce the junction point of pipe laying, make pipeline medium can not produce leakage phenomenon, the described telescopic pipe the other end is respectively provided with two O RunddichtringOs, can improve product hermeticity energy and working life, adopt bi-directional expansion function, making product occur when mounted that pipeline is too short can be compensated in time, more can not produce waste of material, and can meet user's demand.
Accompanying drawing explanation
Fig. 1 the utility model embodiment's structural representation;
Fig. 2 is the structural representation of existing stop valve.
Embodiment
Now with specific embodiment, the utility model is further illustrated by reference to the accompanying drawings.
With reference to figure 1, the utility model embodiment discloses a kind of double-sealing bi-directional expansion loose joint stop valve, comprise valve body 1, valve rod 4, valve gap 2, water squeezing plate 3, pressure cap 5, filler 23 and handwheel 6, described valve body 1 is provided with the water intake 11 of medium circulation, water outlet 12 and valve port 14, between valve body 1 top and valve gap 2 bottoms, be provided with gasket seal 21, water squeezing plate 3 is loaded on valve rod 4 lower ends and is placed in valve body 1 valve pocket, and corresponding with valve port 14, valve rod 4 upper ends are through valve gap 2 and pressure cap 5, and be connected with handwheel 6, between valve gap 2 upper inside wall and valve rod 4, be provided with stuffing box packing 23, valve gap 2 tops adopt and are threaded with pressure cap 5, between pressure cap 5 and filler 23, be provided with a packing ring 24, the free end of described valve body 1 water intake 11 is provided with draw-in groove 13, on the free end of described valve body 1 water outlet 12, be provided with equally draw-in groove 13, described back-up ring 8 is located at valve body and is entered, water outlet draw-in groove interior 13, described Slidable telescopic pipe 7 is located at valve body 1 and is entered, between water outlet, between described valve rod 4 and valve gap 2, be also provided with an O RunddichtringO 22.
Described O RunddichtringO 22 is one, be located at the below that is positioned at stuffing box packing 23 between valve rod 4 and valve gap 2, play the effect of double-sealing, the sealability of valve rod is improved, reinforced the sealing defence line of stop valve, O RunddichtringO has also reduced the frictional force of valve stem seal face simultaneously, makes to open and close moment and reduces, there is laborsaving, the good airproof performance of keying, the advantage of long service life.
Described telescopic pipe 7 ends are all respectively provided with pipe and connect nut 9, when changing and keeping in repair gate valve, without 360 degree, repeat to rotate way gate, only need tighten or unscrew union nut just can easily complete installation or removal, be not subject to the restriction that wall gap is few, bring convenience to production and workmen's work, can reduce the junction point of pipe laying, make pipeline medium can not produce leakage phenomenon, described telescopic pipe 7 the other ends are respectively provided with two O RunddichtringOs 71, can improve product hermeticity energy and working life, adopt bi-directional expansion function, making product occur when mounted that pipeline is too short can be compensated in time, more can not produce waste of material, and can meet user's demand.
A kind of double-sealing bi-directional expansion loose joint stop valve of the present utility model, the below that is positioned at stuffing box packing between described valve rod and valve gap is also provided with O RunddichtringO, play the effect of double-sealing, the sealability of valve rod is improved, reinforced the sealing defence line of stop valve, O RunddichtringO has also reduced the frictional force of valve stem seal face simultaneously, makes to open and close moment and reduces, there is laborsaving, the good airproof performance of keying, the advantage of long service life.Further improved: the free end of described valve inleting water mouth is provided with draw-in groove, on the free end of described valve body water outlet, be provided with equally draw-in groove, described back-up ring is located at valve body and is entered, in water outlet draw-in groove, described Slidable telescopic pipe is located at valve body and is entered, between water outlet, adopt back-up ring design to block telescopic pipe, can not produce the telescopic pipe phenomenon that is stuck, easy for installation simple, enhance productivity, greatly reduce defect rate, described telescopic pipe end is all respectively provided with pipe and connects nut, when changing and keeping in repair gate valve, without 360 degree, repeat to rotate way gate, only need tighten or unscrew union nut just can easily complete installation or removal, be not subject to the restriction that wall gap is few, bring convenience to production and workmen's work, can reduce the junction point of pipe laying, make pipeline medium can not produce leakage phenomenon, the described telescopic pipe the other end is respectively provided with two O RunddichtringOs, can improve product hermeticity energy and working life, adopt bi-directional expansion function, making product occur when mounted that pipeline is too short can be compensated in time, more can not produce waste of material, and can meet user's demand.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; this technological scheme method of specific implementation and approach are a lot; the above is only preferred implementation of the present utility model; but those skilled in the art should be understood that; within not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (3)
1. a double-sealing bi-directional expansion loose joint stop valve, comprise valve body, valve rod, valve gap, water squeezing plate, pressure cap, filler and handwheel, described valve body is provided with the water intake of medium circulation, water outlet and valve port, between valve body top and bonnet lower, be provided with gasket seal, water squeezing plate is loaded on valve rod lower end and is placed in valve body valve pocket, and corresponding with valve port, valve rod upper end is through valve gap and pressure cap, and be connected with handwheel, between valve gap upper inside wall and valve rod, be provided with stuffing box packing, valve gap top adopts and is threaded with pressure cap, between pressure cap and filler, be provided with a packing ring, it is characterized in that: comprise back-up ring, telescopic pipe, pipe connects nut, the free end of described valve inleting water mouth is provided with draw-in groove, on the free end of described valve body water outlet, be provided with equally draw-in groove, described back-up ring is located at valve body and is entered, in water outlet draw-in groove, described Slidable telescopic pipe is located at valve body and is entered, between water outlet, between described valve rod and valve gap, be also provided with an O RunddichtringO.
2. double-sealing bi-directional expansion loose joint stop valve according to claim 1, is characterized in that: described O RunddichtringO is one, is located at the below that is positioned at stuffing box packing between valve rod and valve gap.
3. double-sealing bi-directional expansion loose joint stop valve according to claim 1, is characterized in that: described telescopic pipe end is all respectively provided with pipe and connects nut, and the described telescopic pipe the other end is respectively provided with two O RunddichtringOs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089663.0U CN203718092U (en) | 2014-03-01 | 2014-03-01 | Double-seal two-way telescopic loose joint stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089663.0U CN203718092U (en) | 2014-03-01 | 2014-03-01 | Double-seal two-way telescopic loose joint stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718092U true CN203718092U (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420089663.0U Expired - Fee Related CN203718092U (en) | 2014-03-01 | 2014-03-01 | Double-seal two-way telescopic loose joint stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718092U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930238A (en) * | 2015-06-09 | 2015-09-23 | 许炎章 | Adjusting valve for industrial refrigerating |
| CN104964071A (en) * | 2015-06-30 | 2015-10-07 | 青岛沪航阀门有限公司 | Multifunctional stop valve installed in front of meter |
| CN108548025A (en) * | 2018-07-11 | 2018-09-18 | 江苏培达塑料有限公司 | A kind of Petrochemical Pipe Joints structure for being conveniently replaceable and safeguarding |
-
2014
- 2014-03-01 CN CN201420089663.0U patent/CN203718092U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930238A (en) * | 2015-06-09 | 2015-09-23 | 许炎章 | Adjusting valve for industrial refrigerating |
| CN104964071A (en) * | 2015-06-30 | 2015-10-07 | 青岛沪航阀门有限公司 | Multifunctional stop valve installed in front of meter |
| CN108548025A (en) * | 2018-07-11 | 2018-09-18 | 江苏培达塑料有限公司 | A kind of Petrochemical Pipe Joints structure for being conveniently replaceable and safeguarding |
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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: 20140716 Termination date: 20150301 |
|
| EXPY | Termination of patent right or utility model |