CN208619707U - A kind of cone sealing stop valve - Google Patents
A kind of cone sealing stop valve Download PDFInfo
- Publication number
- CN208619707U CN208619707U CN201821088568.3U CN201821088568U CN208619707U CN 208619707 U CN208619707 U CN 208619707U CN 201821088568 U CN201821088568 U CN 201821088568U CN 208619707 U CN208619707 U CN 208619707U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- valve rod
- inner hole
- hole
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 39
- 238000012856 packing Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The utility model discloses a kind of cone sealing stop valves, valve pocket, valve rod, the spool being connected including the valve body being connected and valve seat and valve body, valve body is equipped with inlet and outlet, and valve seat is equipped with inner hole, and valve rod upper end couples with handwheel, valve rod lower end passes through valve pocket, it is equipped with sealing ring between valve rod and valve pocket, the limit shaft shoulder is equipped on the valve rod in valve pocket, valve pocket lower end is equipped with pilot hole, the cross section of pilot hole and spool upper end is to match rectangular, and valve rod lower end is threaded with spool；The inner hole of valve seat is isometrical through-hole, and the lower end of spool is equipped with conical sealing face, and the maximum outside diameter of conical sealing face is greater than the internal diameter of inner hole；Two or more annular diversion trenches are equipped on the spool conical sealing face that outer diameter is greater than the internal diameter of inner hole.The utility model has the advantages that sealing effect is good, and can prevent the deformation of spool, can realize zero leakage for a long time.
Description
Technical field
The utility model relates to a kind of shut-off valves.
Background technique
The shut-off valve being widely used on pipeline at present, sealing structure mostly use valve seat and spool, and valve seat is equipped with isometrical
Inner hole, spool lower end is equipped with the seal gasket that cooperates with valve seat, which is coupled on spool by screw；Its disadvantage
Are as follows: 1) screw is easily-deformable in the presence of hydraulic pressure, loosens, falls off, and causes seal gasket to fail, sealing performance not can guarantee；2)
When opening or closing, the valve seat of neighbouring water outlet side has the effect of blocking, changed course to water flow, can be to spool after water flow deflecting
Radial effect is formed, spool deformation is will lead to for a long time, deviates installation site, this also will increase leakage.
Utility model content
The purpose of the utility model is to overcome the disadvantages mentioned above of the prior art, provide a kind of cone sealing stop valve, it
Have the advantages that sealing effect is good, and the deformation of spool can be prevented, can realize zero leakage for a long time.
Purpose of the utility model is realized as follows:
A kind of cone sealing stop valve, including valve pocket, valve rod, spool that the valve body being connected and valve seat and valve body are connected, valve
Body is equipped with inlet and outlet, and valve seat is equipped with inner hole, and valve rod upper end couple with handwheel, valve rod lower end across valve pocket, valve rod and
Sealing ring is equipped between valve pocket, it is characterised in that the limit shaft shoulder is equipped on the valve rod in valve pocket, valve pocket lower end is equipped with pilot hole,
The cross section of pilot hole and spool upper end is to match rectangular, and valve rod lower end is threaded with spool；The inner hole of valve seat
For isometrical through-hole, the lower end of spool is equipped with conical sealing face, and the maximum outside diameter of conical sealing face is greater than the internal diameter of inner hole；
Two or more annular diversion trenches are equipped on the spool conical sealing face that outer diameter is greater than the internal diameter of inner hole.
In use, valve rod only rotates, and spool makees moving up and down for straight line, the circular cone of spool lower end by rotation handwheel
The inner hole of shape sealing surface and valve seat realizes sealing；Since the two is hard sealing, no seal gasket etc. is easily-deformable, loosening element,
Ensure sealing performance；It meanwhile when opening or closing spool, can flow back along diversion trench after water flow deflecting, reduce the diameter to spool
It to impact, prevents spool from deforming, further increases leakproofness, can realize zero leakage for a long time；
As advanced optimizing for the utility model, the upper surface of the shaft shoulder and the inner end face contact of valve pocket are limited, is being limited
The upper surface of the shaft shoulder is equipped with annular groove, is equipped with packing seal circle in annular groove；When opening or closing spool, since valve rod only rotates,
Packing seal circle in annular groove is close to the inner face of valve pocket, can play good sealing effect, realizes zero leakage；
The utility model has the advantages that sealing effect is good, and can prevent the deformation of spool, can realize zero leakage for a long time.
Detailed description of the invention
Fig. 1 is the main view of the utility model embodiment.
Specific embodiment
The utility model is described in more detail with reference to the accompanying drawing.
As shown in Figure 1, the cone sealing stop valve, passes through screw thread including the valve body 1 integrally connected firmly and valve seat 2, with valve body 1
Valve pocket 3, valve rod 4, the spool 5 being connected, valve body 1 be equipped with water inlet 6 and water outlet 7, valve seat 2 be equipped with inner hole 15,4 upper end of valve rod with
Handwheel 8 is coupled by nut, and 4 lower end of valve rod passes through valve pocket 3, sealing ring 9 is equipped between valve rod 4 and valve pocket 3, in valve pocket 3
Valve rod 4 is equipped with the limit shaft shoulder 10, limits the upper surface of the shaft shoulder 10 and the inner end face contact of valve pocket 3, in the upper of the limit shaft shoulder 10
End face is equipped with annular groove, is equipped with packing seal circle 11 in annular groove；3 lower end of valve pocket is equipped with pilot hole 14,5 upper end of pilot hole 14 and spool
Cross section be to match rectangular, 4 lower end of valve rod is threaded with spool 5, and the inner hole 15 of valve seat 2 is isometrical logical
Hole, the lower end of spool 5 are equipped with conical sealing face 12, and the maximum outside diameter of conical sealing face 12 is greater than the internal diameter of inner hole 15；?
The spool conical sealing face 12 that outer diameter is greater than the internal diameter of inner hole 15 is equipped with two annular diversion trenches 16；
In use, by rotation handwheel 8, due to limiting the positioning of the shaft shoulder 10 and handwheel 8, valve rod 4 rotations, pilot hole 14
So that the spool 5 being threaded with valve rod 4 makees moving up and down for straight line, the conical sealing face 12 of 5 lower end of spool with it is interior
Hole 15 cooperates, and realizes sealing；Since the two is hard sealing, no seal gasket etc. is easily-deformable, loosening element, it is ensured that sealing performance；Together
When, it when opening or closing spool 5, can flow back along diversion trench 16 after water flow deflecting, reduce the radial impact to spool 5, prevent
Spool deformation, further increases leakproofness, can realize zero leakage for a long time, and is rotated due to valve rod 4, the packing seal in annular groove
Circle 11 is close to the inner face of valve pocket 3 always, can play good sealing effect, realizes zero leakage.
Claims (2)
1. a kind of cone sealing stop valve, including valve pocket, valve rod, spool that the valve body being connected and valve seat and valve body are connected, valve body
Equipped with inlet and outlet, valve seat is equipped with inner hole, and valve rod upper end couples with handwheel, and valve rod lower end passes through valve pocket, valve rod and valve
Sealing ring is equipped between set, it is characterised in that the limit shaft shoulder is equipped on the valve rod in valve pocket, valve pocket lower end is equipped with pilot hole, leads
Cross section to hole and spool upper end is to match rectangular, and valve rod lower end is threaded with spool；The inner hole of valve seat is
Isometrical through-hole, the lower end of spool are equipped with conical sealing face, and the maximum outside diameter of conical sealing face is greater than the internal diameter of inner hole；?
The spool conical sealing face that outer diameter is greater than the internal diameter of inner hole is equipped with two or more annular diversion trenches.
2. a kind of cone sealing stop valve according to claim 1, it is characterised in that it is described limit the shaft shoulder upper surface with
The inner end face contact of valve pocket is equipped with annular groove in the upper surface of the limit shaft shoulder, is equipped with packing seal circle in annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821088568.3U CN208619707U (en) | 2018-07-10 | 2018-07-10 | A kind of cone sealing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821088568.3U CN208619707U (en) | 2018-07-10 | 2018-07-10 | A kind of cone sealing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619707U true CN208619707U (en) | 2019-03-19 |
Family
ID=65703652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821088568.3U Active CN208619707U (en) | 2018-07-10 | 2018-07-10 | A kind of cone sealing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208619707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375084A (en) * | 2019-08-09 | 2019-10-25 | 崇州市岷江塑胶有限公司 | A kind of PE wildcard-filter style shut-off valve |
-
2018
- 2018-07-10 CN CN201821088568.3U patent/CN208619707U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375084A (en) * | 2019-08-09 | 2019-10-25 | 崇州市岷江塑胶有限公司 | A kind of PE wildcard-filter style shut-off valve |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |