CN204372191U - A kind of novel cutoff valve - Google Patents
A kind of novel cutoff valve Download PDFInfo
- Publication number
- CN204372191U CN204372191U CN201420686248.3U CN201420686248U CN204372191U CN 204372191 U CN204372191 U CN 204372191U CN 201420686248 U CN201420686248 U CN 201420686248U CN 204372191 U CN204372191 U CN 204372191U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- spherosome
- valve rod
- valve body
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000005406 washing Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 3
- 238000007667 floating Methods 0.000 abstract description 2
- 238000012946 outsourcing Methods 0.000 abstract description 2
- 239000000945 filler Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model relates to a kind of novel cutoff valve, comprises valve body, valve rod, valve seat, valve gap, filling-material structure and spool; Linkage structure between described valve rod and spool is specially: described spool is a spherosome, has the cylindrical cavity that an appearance spherosome embeds in the lower end of valve rod, has the circular groove fitted with spherosome on the top of this cylindrical cavity simultaneously.The utility model has the advantage of: the spool of stop valve is changed to spherosome, change the conical surface of original sealing surface and plane contact form into sphere-contact, spheroid valve rod outsourcing, ball can free 360 ° of rotations at valve rod head, when valve is in little unlatching, floating spheroid rotates, and avoids medium washing away sealing surface, form due to sealing surface is sphere, and ball can at 360 ° of free position lower seals.
Description
Technical field
The utility model relates to a kind of stop valve, particularly a kind ofly reduces the novel cutoff valve that wash away of medium to sealing surface.
Background technique
The open-shut device of stop valve (stop valve, Globe Valve) is the flap of stopper, and in plane or the extra large conical surface above sealing, flap is along the center line moving linearly of valve seat.The forms of motion of valve rod, (adopted name: dark bar), also has lifting rotation rod-type to can be used for controlling the flowing of all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.Therefore, such stop valve valve that dams is suitable as and cuts off or regulate and throttling use very much.Valve rod due to such valve open or shutoff stroke relatively short, and there is cutting function very reliably, again due to the change of valve seat port and the stroke direct proportionality of flap, be very suitable for the adjustment to flow.
At present, the stop valve in commercially using, its valve is when just opening, the pressure of MEDIA FLOW warp is maximum, simultaneously also larger to washing away of the sealing surface of valve, when especially running into high-pressure medium, the easier sealing surface to valve causes damage, affects sealing effect; In addition, what the connection between its valve body with support adopted usually is the mode be threaded, and adopts the stop valve of such Placement in the process of carrying out work, and it at high temperature easily occurs the phenomenon of killing, and under high pressure easily occurs the situation of distortion.
Model utility content
The technical problems to be solved in the utility model is to provide and a kind ofly reduces the novel cutoff valve that wash away of medium to sealing surface.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of novel cutoff valve, and its innovative point is: comprise valve body, valve rod, valve seat, valve gap, filling-material structure and spool;
Described valve gap is positioned at the upper end of valve body, and matches with valve body, in valve body, be provided with valve seat, and the outer end of valve body is set with a support; Described valve rod stretches in the inner chamber of valve body from top to bottom, and is also provided with filling-material structure between valve rod and body cavity, is connected with spool in the lower end of valve rod, and the sealing surface of described spool and the sealing surface of valve seat form sealing pair;
Linkage structure between described valve rod and spool is specially: described spool is a spherosome, has the cylindrical cavity that an appearance spherosome embeds in the lower end of valve rod, has the circular groove fitted with spherosome on the top of this cylindrical cavity simultaneously.
Further, described spherosome is flexibly connected with between valve rod, and can carry out 360 ° of rotations.
Further, described support is connected by divided ring with between valve body, and is tightened fixing by Cock screw.
Further, the linkage structure between described support and valve body is specially: have the circle shape groove A that an appearance divided ring embeds in the upper end of valve body, has a circle shape groove B corresponding with divided ring on support simultaneously.
The utility model has the advantage of: the spool of stop valve is changed to spherosome, change the conical surface of original sealing surface and plane contact form into sphere-contact, spheroid valve rod outsourcing, ball can free 360 ° of rotations at valve rod head, when valve is in little unlatching, floating spheroid rotates, and avoids medium washing away sealing surface, form due to sealing surface is sphere, and ball can at 360 ° of free position lower seals; The connecting mode of valve body and support is changed to divided ring structure by worm structure, effectively prevents screw thread from high temperature killing, the generation of the situation of being under high pressure out of shape, and can quick despatch be realized.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of novel cutoff valve of the present utility model.
Embodiment
Schematic diagram is as shown in Figure 1 known, and novel cutoff valve of the present utility model comprises valve body 9, valve rod 7, valve seat, valve gap, filling-material structure and spool.
Valve gap is positioned at the upper end of valve body 9, and match with valve body 9, in valve body 9, valve seat is installed, valve rod 7 stretches in the inner chamber of valve body 9 from top to bottom, and also filling-material structure is provided with between valve rod 7 and the inner chamber of valve body 9, be connected with spool in the lower end of valve rod 7, the sealing surface of spool and the sealing surface of valve seat form sealing pair.
Linkage structure between valve rod 7 and spool is specially: spool is a spherosome 8, has the cylindrical cavity that an appearance spherosome 8 embeds in the lower end of valve rod 7, has the circular groove fitted with spherosome 8 on the top of this cylindrical cavity simultaneously.
Be flexibly connected between spherosome 8 with valve rod 8, and spherosome 8 freely can carry out 360 ° of rotations.When valve is under little opening state, spherosome 8 rotates, and avoids medium washing away the sealing surface of valve seat, and in addition when sealing, due to spool employing is spherosome structure, therefore can at 360 ° of free position lower seals.
Filling-material structure is specially: between valve rod 7 and valve body 9 inner chamber, be provided with filler cavity, filler 3 is filled with in filler cavity, be fixed by Gland 2 in the upper end of filler 3, the through hole holding stay-bolt 4 and pass is had in one end of Gland 2, stay-bolt 4 is fixed with nut through after this through hole, thus compress filler 3, also there is a Packing seat 6 between the lower end of filler 3 and valve body 9.
Support 1 is sleeved on the outer end of valve body 9, and is connected by divided ring 10 between support 1 with valve body 9, and tightens fixing by Cock screw 5.
Linkage structure between support 1 and valve body 9 is specially: have the circle shape groove A that an appearance divided ring 10 embeds in the upper end of valve body 9, has a circle shape groove B corresponding with divided ring 10 on support 1 simultaneously.
In the process of mounting bracket 1, first support 1 is sleeved on the outer end of valve body 9, then divided ring 10 is embedded in the circle shape groove A of valve body 9 respectively, then support 1 is upwards pulled, circle shape groove B on support 1 is adjacent to the outer surface of divided ring 10, finally Cock screw 5 on support 1 is tightened, complete assembling.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a novel cutoff valve, is characterized in that: comprise valve body, valve rod, valve seat, valve gap, filling-material structure and spool;
Described valve gap is positioned at the upper end of valve body, and match with valve body, in valve body, valve seat is installed, a support is set with in the outer end of valve body, described valve rod stretches in the inner chamber of valve body from top to bottom, and also filling-material structure is provided with between valve rod and body cavity, be connected with spool in the lower end of valve rod, the sealing surface of described spool and the sealing surface of valve seat form sealing pair;
Linkage structure between described valve rod and spool is specially: described spool is a spherosome, has the cylindrical cavity that an appearance spherosome embeds in the lower end of valve rod, has the circular groove fitted with spherosome on the top of this cylindrical cavity simultaneously.
2. novel cutoff valve according to claim 1, is characterized in that: described spherosome is flexibly connected with between valve rod, and can carry out 360 ° of rotations.
3. novel cutoff valve according to claim 1, is characterized in that: described support is connected by divided ring with between valve body, and is tightened fixing by Cock screw.
4. novel cutoff valve according to claim 3, it is characterized in that: the linkage structure between described support and valve body is specially: there is in the upper end of valve body the circle shape groove A that an appearance divided ring embeds there is a circle shape groove B corresponding with divided ring on support simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686248.3U CN204372191U (en) | 2014-11-17 | 2014-11-17 | A kind of novel cutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686248.3U CN204372191U (en) | 2014-11-17 | 2014-11-17 | A kind of novel cutoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372191U true CN204372191U (en) | 2015-06-03 |
Family
ID=53328413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420686248.3U Expired - Lifetime CN204372191U (en) | 2014-11-17 | 2014-11-17 | A kind of novel cutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405895A (en) * | 2014-11-17 | 2015-03-11 | 南通龙源电站阀门有限公司 | Novel stop valve |
-
2014
- 2014-11-17 CN CN201420686248.3U patent/CN204372191U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405895A (en) * | 2014-11-17 | 2015-03-11 | 南通龙源电站阀门有限公司 | Novel stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |