CN106321919A - Normal-pressure self-closing valve - Google Patents
Normal-pressure self-closing valve Download PDFInfo
- Publication number
- CN106321919A CN106321919A CN201611002696.7A CN201611002696A CN106321919A CN 106321919 A CN106321919 A CN 106321919A CN 201611002696 A CN201611002696 A CN 201611002696A CN 106321919 A CN106321919 A CN 106321919A
- Authority
- CN
- China
- Prior art keywords
- valve
- seat
- straight
- valve body
- sealing pair
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000203 mixture Substances 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 101100282111 Caenorhabditis elegans gap-2 gene Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a normal-pressure self-closing valve and belongs to the field of water supply valves. The normal-pressure self-closing valve comprises a straight-through single-seat valve body and a valve cover, and a valve seat and a valve element which are arranged in the straight-through single-seat valve body form a sealing pair. A valve rod is arranged on the valve element in the straight-through single-seat valve body, an unthreaded hole perpendicular to the valve seat in the straight-through single-seat valve body is arranged on the valve cover, the upper end of the valve rod penetrates through the unthreaded hole, a second valve element is arranged at the upper end of the valve rod, a free sliding gap is reserved between the unthreaded hole and the valve rod, a second valve seat is arranged on the lower surface of the valve cover and matches with the valve element in the straight-through single-seat valve body to form a second sealing pair, a third valve seat is arranged on the upper surface of the valve cover and matches with the second valve element outside the straight-through single-seat valve body to form a third sealing pair, and the first sealing pair in the straight-through single-seat valve body and the third sealing pair outside the same seal synchronously. The normal-pressure self-closing valve is used for preventing water from escaping.
Description
Technical field
The invention belongs to water supply valve field, be specifically related to a kind of normal pressure self-closing valve.
Background technology
The most perfect along with water system, although tap water cut-off is existing as the most seldom occurring, but meets the reasons such as maintenance
Cut off the water and be still difficult to avoid that, easily forget after people open water halter when cutting off the water to be turned off, or deliberately do not close water halter,
Etc. water time have the sound of flowing water just to know water, but busy go out or the most easily ignore water halter do not close,
So the most easily causing the generation of existing picture of metalling run out during water, the phenomenon of metalling run out that therefore reason causes is not uncommon for, and not only wastes water
Resource, also can cause damage to the house of neighbours downstairs, furniture etc., and economic loss is bigger, it is also possible to affect neighbourhood harmonious.
Summary of the invention
When the invention aims to solve to cut off the water, people are not turned off after opening water halter and metalling run out of causing
Problem, it is provided that a kind of normal pressure self-closing valve, its technical scheme is as follows:
A kind of normal pressure self-closing valve, it comprises straight-through single seat valve body and valve gap, leads directly to single seat valve body the closeest with valve gap
Envelope connects, and the valve seat and the spool that arrange in straight-through single-seat valve body constitute one group of sealing pair；At straight-through single seat valve body
It is provided with valve rod on an interior spool, the unthreaded hole of the valve seat being provided perpendicular on valve gap in straight-through single-seat valve body,
The upper end of valve rod passes unthreaded hole, and is provided with second spool in the upper end of valve rod, arranges slidably between unthreaded hole and valve rod
Gap, valve rod can be fallen to making one group in straight-through single-seat valve body to seal under state of i.e. cutting off the water without water pressure condition by free gravity
Secondary Guan Bi, leads directly to one group of sealing pair in single-seat valve body tighter by hydraulic pressure Guan Bi, just can prevent from metalling run out during water；Under valve gap
Surface configuration has second valve seat, second valve seat to coordinate second group of sealing of composition with a spool in straight-through single-seat valve body
Pair, valve rod is lifted up when normally using tap water by water, makes one group of sealing pair open, second group of sealing pair Guan Bi, due to
Can be remained closed by second group of sealing pair of hydraulic pressure effect, just can normally open water halter and discharge water use；Upper surface at valve gap sets
Being equipped with the 3rd valve seat, the 3rd valve seat second spool external with straight-through single-seat valve coordinates the 3rd group of sealing pair of composition, directly
The 3rd group of sealing pair synchronous sealed that one group of sealing pair in logical single-seat valve body is external with straight-through single-seat valve, unthreaded hole when preventing water
And the slidably gap infiltration between valve rod.
The invention have the benefit that straight-through single-seat valve body of cutting off the water is interior without being automatically switched off during hydraulic pressure, can effectively prevent
Metal run out, not only saving water resource, reduce economic loss, also make neighbourhood preserve harmony；The present invention can be also used for pressed gas pipe
Line.
Accompanying drawing illustrates:
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is the decomposing schematic representation of Fig. 1；
Fig. 3 is the cross-sectional schematic of Fig. 1；
Fig. 4 is the schematic diagram of second group of sealing pair closure state in Fig. 3；
Fig. 5 is the schematic diagram being provided with handle on the second spool；
Wherein: valve body-1；Valve gap-2；Unthreaded hole-2-1；One valve seat-3；One spool-4；Valve rod-5；Second spool-6；The
Two valve seats-7；3rd valve seat-8；Handle-9.
Detailed description of the invention:
Referring to figs. 1 through Fig. 5, a kind of normal pressure self-closing valve, it comprises straight-through single seat valve body 1 and valve gap 2, straight-through single seat valve body 1 with
Valve gap 2 is tightly connected threadably, the valve seat 3 arranged in straight-through single seat valve body 1 and spool 4 constitute one group close
Envelope pair；It is provided with valve rod 5 on a spool 4 in straight-through single seat valve body 1, valve gap 2 is provided perpendicular to straight-through single seat
The unthreaded hole 2-1 of a valve seat 3 in valve body 1, the upper end of valve rod 5 passes unthreaded hole 2-1, and the upper end of valve rod 5 is provided with second
Individual spool 6, arranges slidably gap between unthreaded hole 2-1 and valve rod 5, valve rod 5 i.e. can cut off the water under state without water pressure condition
Fallen by free gravity to making one group of sealing pair in straight-through single seat valve body 1 to close, lead directly to a group in single seat valve body 1 during water close
Envelope is secondary tighter by hydraulic pressure Guan Bi, just can prevent from metalling run out；Lower surface at valve gap 2 is provided with second valve seat 7, second valve seat 7
Second group of sealing pair of composition is coordinated, by valve rod 5 when water normally uses tap water with a spool 4 in straight-through single seat valve body 1
Being lifted up, make one group of sealing pair open, second group of sealing pair Guan Bi, owing to can be kept closing by second group of sealing pair of hydraulic pressure effect
Close, just can normally open water halter and discharge water use；Upper surface at valve gap 2 is provided with the 3rd valve seat 8, the 3rd valve seat 8 with
Second spool 6 outside straight-through single seat valve body 1 coordinates the 3rd group of sealing pair of composition, one group of sealing pair in straight-through single seat valve body 1
The 3rd group of sealing pair synchronous sealed outside with straight-through single seat valve body 1, free skating between unthreaded hole 2-1 and valve rod 5 when preventing water
The infiltration of dynamic gap.
All sealing pairs use rustless steel or copper etc. to prevent the material got rusty, it is ensured that the sealing of life-time service.
Although standard tap water pressure be enough to keep second group of sealing pair Guan Bi, even if valve rod 5 and full spool all use
Pure copper material；But less at some Special section or floor hydraulic pressure, in order to prevent hydraulic pressure hour valve rod 5 from falling, valve rod 5 is with complete
Portion's spool entirety proportion, less than the proportion of water, can use the structures such as hollow-core construction, vacuum structure or the little specific gravity material of internal filling
Realize.
Preferably, all sealing pairs all use conical surface seal, and sealing property is more preferable.
Preferably, second spool 6 is provided with handle 9, it is simple to be lifted up by valve rod 5.
Claims (4)
1. a normal pressure self-closing valve, it comprises straight-through single seat valve body (1) and valve gap (2), leads directly to single seat valve body (1) and valve gap
(2) being tightly connected threadably, the valve seat (3) and the spool (4) that arrange in straight-through single seat valve body (1) constitute one
Group sealing pair；It is provided with valve rod (5), it is characterised in that in valve gap (2) on a spool (4) in straight-through single seat valve body (1)
On the unthreaded hole (2-1) of a valve seat (3) that is provided perpendicular in straight-through single seat valve body (1), the upper end of valve rod (5) passes unthreaded hole
(2-1), and it is provided with second spool (6) in the upper end of valve rod (5), arranges slidably between unthreaded hole (2-1) and valve rod (5)
Gap；Lower surface at valve gap (2) is provided with second valve seat (7), in second valve seat (7) and straight-through single seat valve body (1)
One spool (4) coordinates second group of sealing pair of composition；Upper surface at valve gap (2) is provided with the 3rd valve seat (8), the 3rd valve
Seat (8) coordinates the 3rd group of sealing pair of composition with straight-through single seat valve body (1) second spool (6) outward, in straight-through single seat valve body (1)
One group of sealing pair and straight-through single seat valve body (1) the 3rd group of sealing pair synchronous sealed outward.
2. a kind of normal pressure self-closing valve, it is characterised in that valve rod (5) and full spool entirety proportion are less than
The proportion of water.
3. a kind of normal pressure self-closing valve, it is characterised in that all sealing pairs all use conical surface seal.
4. a kind of normal pressure self-closing valve, it is characterised in that be provided with handle on second spool (6)
(9)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611002696.7A CN106321919B (en) | 2016-11-15 | 2016-11-15 | normal pressure self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611002696.7A CN106321919B (en) | 2016-11-15 | 2016-11-15 | normal pressure self-closing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106321919A true CN106321919A (en) | 2017-01-11 |
| CN106321919B CN106321919B (en) | 2018-06-08 |
Family
ID=57817094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611002696.7A Active CN106321919B (en) | 2016-11-15 | 2016-11-15 | normal pressure self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321919B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949280A (en) * | 2017-04-22 | 2017-07-14 | 姜勇志 | Backflow is without air pressure emergency shut-in valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5848436Y2 (en) * | 1975-06-30 | 1983-11-05 | ヤマハ株式会社 | daffodil couch |
| CN2172382Y (en) * | 1993-09-22 | 1994-07-20 | 卢昭贵 | Pressure-increasing high-efficiency water-saving valve |
| CN2178815Y (en) * | 1993-11-03 | 1994-10-05 | 陈齐智 | Cut-off valve |
| CN2210292Y (en) * | 1994-11-21 | 1995-10-18 | 李凯峰 | Automatic cutting off valve for anti-loss of water |
| CN203857059U (en) * | 2014-06-06 | 2014-10-01 | 永嘉县嘉仕达阀门有限公司 | Novel stop valve |
| CN206145211U (en) * | 2016-11-15 | 2017-05-03 | 赵忠海 | Self -imposed valve of ordinary pressure |
-
2016
- 2016-11-15 CN CN201611002696.7A patent/CN106321919B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5848436Y2 (en) * | 1975-06-30 | 1983-11-05 | ヤマハ株式会社 | daffodil couch |
| CN2172382Y (en) * | 1993-09-22 | 1994-07-20 | 卢昭贵 | Pressure-increasing high-efficiency water-saving valve |
| CN2178815Y (en) * | 1993-11-03 | 1994-10-05 | 陈齐智 | Cut-off valve |
| CN2210292Y (en) * | 1994-11-21 | 1995-10-18 | 李凯峰 | Automatic cutting off valve for anti-loss of water |
| CN203857059U (en) * | 2014-06-06 | 2014-10-01 | 永嘉县嘉仕达阀门有限公司 | Novel stop valve |
| CN206145211U (en) * | 2016-11-15 | 2017-05-03 | 赵忠海 | Self -imposed valve of ordinary pressure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949280A (en) * | 2017-04-22 | 2017-07-14 | 姜勇志 | Backflow is without air pressure emergency shut-in valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106321919B (en) | 2018-06-08 |
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