CN202674344U - Cone-sealed stop valve - Google Patents
Cone-sealed stop valve Download PDFInfo
- Publication number
- CN202674344U CN202674344U CN2012202709502U CN201220270950U CN202674344U CN 202674344 U CN202674344 U CN 202674344U CN 2012202709502 U CN2012202709502 U CN 2012202709502U CN 201220270950 U CN201220270950 U CN 201220270950U CN 202674344 U CN202674344 U CN 202674344U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- valve body
- stop valve
- valve rod
- 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 - Fee Related
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Abstract
The utility model discloses a cone-sealed stop valve which comprises a valve body, a spool, a valve stem and a hand wheel. One end of the valve stem is inserted inside the valve body to be connected with the spool, the other end of the valve stem extends outside the valve body to be connected with the hand wheel, the spool is made of metal material, and a sealed surface of the spool is a conical surface. Compared with the prior art, the cone-sealed stop valve has the advantages that the spool is made of metal material, the valve body and the spool are in a hard sealing manner, and the stop valve is high in sealing performance, ultrahigh-pressure-resistant and long in service life compared with sealing by soft material.
Description
Technical field
The utility model relates to the stop valve in the coal mine hydraulic supporting oil hydraulic circuit, and specifically, the utility model relates to a kind of cone sealing stop valve.
Background technique
Conical surface stop valve is a kind of of stop valve, is widely used in the oil hydraulic circuit of coal mine fully-mechanized mining working hydraulic support.The structure of conical surface stop valve commonly used as shown in Figure 2 at present, it comprises valve body 1, valve rod 5, spool 2 and handwheel 6, because spool 2 is to adopt the polyformaldehyde material of softwood matter to make, then be soft seal between spool 2 and the valve body 1, exist the defective of anti-ultrahigh pressure poor performance, and soft material easily weares and teares, and using sealability of a specified duration also can variation.
The model utility content
Technical problem to be solved in the utility model is a kind of cone sealing stop valve, to reach the purpose of ability ultrahigh pressure, raising sealability.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of cone sealing stop valve, comprise valve body, spool, valve rod and handwheel, valve rod one end inserts valve inner and is connected with spool, the other end stretches out the valve body outside and is connected with handwheel, described spool adopts metal material to make, and the sealing surface of spool is the conical surface.
Be set with a swivel nut on the shaft of described valve rod, this swivel nut and described spool be for being threaded, and correspondingly is provided with tapped hole at spool, and the end of inserting this tapped hole at valve rod also is provided with flange.
Be provided with the damping balance chamber at described valve rod, be provided with the through hole that this damping balance chamber is communicated with body cavity at described spool.
Be socketed with a valve pocket on the shaft of described valve rod, this valve pocket is threaded with shaft, and valve pocket and inserting is connected with valve body screw thread in the valve body.
Described handwheel is connected on the described valve rod by fastening nuts.
The utility model employing technique scheme, compared with prior art, spool adopts metal material to make, and makes to be hard sealing between valve body and the spool, and with respect to the sealing of softwood matter, stop valve is good seal performance not only, goes back ability ultrahigh pressure, long service life.
Description of drawings
Fig. 1 is the structural representation of stop valve of the present utility model;
Fig. 2 is the structural representation of the stop valve in the background technique;
Mark among the above-mentioned figure is: 1, valve body; 2, spool; 3, swivel nut; 4, valve pocket; 5, valve rod; 6, handwheel; 7, damping balance chamber.
Embodiment
Be illustrated in figure 1 as a kind of cone sealing stop valve of the present utility model, it comprises valve body 1, spool 2, valve rod 5 and handwheel, and valve rod 5 one ends insert valve body 1 inside and are connected with spool 2, and the other end stretches out valve body 1 outside and is connected with handwheel.In order to solve problems of the prior art, the spool 2 of this stop valve adopts metal materials to make, and the sealing surface of spool 2 is the conical surface, contacts for line between spool 2 and the valve body 1.Compared with prior art, spool 2 adopts metal material to make, and makes to be hard sealing between valve body 1 and the spool 2, and with respect to the sealing of softwood matter, stop valve is good seal performance not only, goes back ability ultrahigh pressure, long service life.
As shown in Figure 1, be set with a swivel nut 3 at the shaft of valve rod 5, this swivel nut 3 and spool 2 are for being threaded, the outside of swivel nut 3 is provided with screw thread, correspondingly be provided with tapped hole at spool 2, the end of inserting these tapped holes at valve rod 5 also is provided with flange, and the diameter of flange is greater than the diameter of swivel nut 3 endoporus.On the shaft of valve rod 5, also be socketed with a valve pocket 4, this valve pocket 4 is threaded with shaft, be provided with screw thread in the endoporus of valve pocket 4, shaft stage casing at valve rod 5 also is provided with screw thread, valve pocket 4 and inserting in the valve body 1 is threaded with valve body 1, part in the insertion valve body 1 of valve pocket 4 is provided with the shrinkage pool recessed from the end, and spool 2 is positioned at this shrinkage pool, has the O RunddichtringO between spool 2 and shrinkage pool inwall.On valve rod 5, also be provided with damping balance chamber 7, be provided with the through hole that this damping balance chamber 7 is communicated with valve body 1 inner chamber at spool 2, this damping balance chamber 7 also is communicated to the shrinkage pool of valve pocket 4 always, damping balance chamber 7 is set high pressure oil is entered, can balance valve body 1 internal pressure.In addition, the handwheel 6 of this stop valve is connected on the valve rod 5 by fastening nuts.With respect to prior art, this stop valve part is few, has advantages of simple in structure, easy to installation and maintenance.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technological scheme carry out; or without improving design of the present utility model and technological scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (5)
1. cone sealing stop valve, comprise valve body, spool, valve rod and handwheel, valve rod one end inserts valve inner and is connected with spool, and the other end stretches out the valve body outside and is connected with handwheel, it is characterized in that: described spool adopts metal material to make, and the sealing surface of spool is the conical surface.
2. cone sealing stop valve according to claim 1, it is characterized in that: be set with a swivel nut on the shaft of described valve rod, this swivel nut and described spool be for being threaded, and correspondingly is provided with tapped hole at spool, and the end of inserting this tapped hole at valve rod also is provided with flange.
3. cone sealing stop valve according to claim 1 and 2 is characterized in that: be provided with the damping balance chamber at described valve rod, be provided with the through hole that this damping balance chamber is communicated with body cavity at described spool.
4. cone sealing stop valve according to claim 3, it is characterized in that: be socketed with a valve pocket on the shaft of described valve rod, this valve pocket is threaded with shaft, and valve pocket and inserting in the valve body is connected with valve body screw thread.
5. cone sealing stop valve according to claim 4, it is characterized in that: described handwheel is connected on the described valve rod by fastening nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202709502U CN202674344U (en) | 2012-06-11 | 2012-06-11 | Cone-sealed stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202709502U CN202674344U (en) | 2012-06-11 | 2012-06-11 | Cone-sealed stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674344U true CN202674344U (en) | 2013-01-16 |
Family
ID=47495250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202709502U Expired - Fee Related CN202674344U (en) | 2012-06-11 | 2012-06-11 | Cone-sealed stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202674344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573732A (en) * | 2013-09-09 | 2014-02-12 | 山东大学 | Ultrahigh-pressure large-flow-rate supercharged hydraulically controlled stop valve and application thereof |
-
2012
- 2012-06-11 CN CN2012202709502U patent/CN202674344U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573732A (en) * | 2013-09-09 | 2014-02-12 | 山东大学 | Ultrahigh-pressure large-flow-rate supercharged hydraulically controlled stop valve and application thereof |
| CN103573732B (en) * | 2013-09-09 | 2016-02-17 | 山东大学 | A kind of ultra-high pressure high flow supercharging formula fluid-controlled cut-off valve and application thereof |
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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: 20130116 Termination date: 20150611 |
|
| EXPY | Termination of patent right or utility model |