CN202867939U - Through-wall anti-freezing valve - Google Patents
Through-wall anti-freezing valve Download PDFInfo
- Publication number
- CN202867939U CN202867939U CN 201220627810 CN201220627810U CN202867939U CN 202867939 U CN202867939 U CN 202867939U CN 201220627810 CN201220627810 CN 201220627810 CN 201220627810 U CN201220627810 U CN 201220627810U CN 202867939 U CN202867939 U CN 202867939U
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- valve
- backsiphonage
- wall
- valve body
- water
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- Expired - Fee Related
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Abstract
The utility model discloses a through-wall anti-freezing valve and belongs to the field of machinery. The through-wall anti-freezing valve resolves problems that water in an existing water pipe can not be discharged completely and is easy to freeze in the condition of lower temperature. The through-wall anti-freezing valve is installed on a wall body and comprises a valve body with a water inlet and a water outlet, a hand wheel and a valve rod. The valve rod is installed inside the valve body and the outer end of the valve rod penetrates out of the valve body and is fixedly connected with the hand wheel. The valve rod is a hollow pipe and a drain hole communicated with the inner cavity of the valve rod is formed in the outer end position of the valve rod. A one-way check valve is installed between the valve rod and the water inlet of the valve body. An anti-siphon valve is installed at the position close to the water outlet inside the valve body. The through-wall anti-freezing valve has the advantages of being simple in structure, convenient to use and good in anti-freezing effect.
Description
Technical field
The utility model belongs to field of mechanical technique, particularly a kind of wall antifreezing valve of crossing.
Background technique
In the northern area of China, after entering winter, temperature all can descend at any time suddenly, lowest temperature drops to below 0 degree, under applying working condition not, velocity of medium is zero in the feedwater piping, behind the logical tap water in village village, because most of depotition cock all in institute of peasant household, has been waited until winter, the not water outlet of water pipe of being frozen, in order to guarantee water supply pipe normal operation in the winter time, avoid the freezing even water pipe from freezing crack impact life of tap water, produce, must carry out antifreeze processing to water supply pipe, perhaps scald with hot water, perhaps roasting with naked light, perhaps use cotton, linen or PE insulating rubber plastic closely twine exposed water pipe and the first-class water facility of the fire hose, wrapping is also fixed with tape, but under cryogenic conditions, still can freeze owing to stop water in the running water pipe.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, and what proposed a kind of simple in structure, easy to use, good freezing protection effect crosses the wall antifreezing valve.
The purpose of this utility model can realize by following technical proposal: a kind of wall antifreezing valve of crossing, be installed on the body of wall, comprise valve body, handwheel and valve rod with water intake and water outlet, described valve rod is installed in the valve body, the valve rod outer end passes valve body and handwheel is connected, it is characterized in that, described valve rod is a hollow tubular, place, valve rod outer end offers the weep hole that communicates with stem cavity, between described valve rod and the valve inleting water mouth one way stop peturn valve is installed, near water outlet the backsiphonage valve is installed in the described valve body.
This antifreezing valve tilts and to be installed in the body of wall, and wherein the water intake of valve body is positioned at indoorly, and water outlet is positioned at outdoor, and the water intake height is higher than water outlet height.When the rotation hand wheel throttle down, one way stop peturn valve is clogging with water intake, thereby makes water go out to flow in the valve body from water intake, because valve body is obliquely installed, the water that originally is trapped in the valve body emits from water outlet under the self gravitation effect.
When valve open and under experience is cut off the water suddenly situation, particularly when valve body water outlet connecting hose, one way stop peturn valve is clogging with water intake, the water that is trapped in simultaneously in the valve body emits and forms vacuum from water outlet in valve body under the self gravitation effect, by the backsiphonage valve valve inner is communicated with atmosphere, avoid the water in the flexible pipe to be back in the valve body.
Weep hole is opened in that section that valve rod exposes valve body, valve closing or open so no matter, by weep hole can both with in the valve rod and the water in the one way stop peturn valve emit, avoid being trapped in water in valve rod and the one way stop peturn valve and under low temperature condition, freeze and damage.It mainly is to emit from weep hole by stem cavity for the water that can will be trapped in the one way stop peturn valve that valve rod is designed to hollow tubular.
Above-mentioned crossing in the wall antifreezing valve, the inner slotting intrinsic swivel nut of described valve rod, described swivel nut is threaded with valve interior wall.
Above-mentioned crossing in the wall antifreezing valve, described one way stop peturn valve comprises valve seat poppet and spring, described valve seat poppet the inner is plugged in the swivel nut, the outer end is stretched out swivel nut and is fixed with barrier film, back-up ring and valve seat flap by bolt, described spring one end is resisted against in the valve rod, and the other end is resisted against on the valve seat poppet interior edge face.
Above-mentioned crossing in the wall antifreezing valve, described valve inleting water mouth inwall has convex shoulder, and above-mentioned valve seat flap is resisted against on the convex shoulder.
Above-mentioned crossing in the wall antifreezing valve, described backsiphonage valve comprises backsiphonage puppet valve seat, backsiphonage puppet valve lobe and backsiphonage valve body, offer some vents that communicate with body cavity on the described backsiphonage valve body, described backsiphonage puppet valve lobe fixes on backsiphonage puppet valve seat, and can block vent when backsiphonage puppet valve lobe is resisted against on the backsiphonage valve body.
Above-mentioned crossing in the wall antifreezing valve, the pressure cap that has been threaded on the described valve body is provided with pad and filler in pressure cap the inner, and described valve rod runs through pad, filler and pressure cap and handwheel is connected.Can prevent that by pad the water in the valve body from permeating away from the slit between valve body and the pressure cap, plays seal action.
Compared with prior art, this valve has the following advantages:
1, one way stop peturn valve and backsiphonage valve are installed in the valve body, are guaranteed that by one way stop peturn valve the valve body pipeline can only one direction circulate, in valve open and the situation of cutting off the water, valve inner is communicated with atmosphere, avoid the water in the flexible pipe to be back in the valve body.
2, valve rod is hollow tubular and offers the water port in the valve rod outer end, when this valve tilts to be installed on the body of wall, valve closing or open so no matter, the water that reaches on the one way stop peturn valve in the valve rod can both be emitted by the water port, avoid being trapped in water in valve rod and the one way stop peturn valve and freeze under low temperature condition and damage, practicability is good, good freezing protection effect.
Description of drawings
Fig. 1 is decomposition texture schematic representation of the present utility model.
Fig. 2 is sectional structure schematic representation of the present utility model.
Among the figure, 1, valve body, 1a, water intake; 1b, water outlet; 1c, convex shoulder; 2, handwheel; 3, valve rod; 3a, weep hole; 4, pressure cap; 5, pad; 6, filler; 7, swivel nut; 8, valve seat poppet; 9, spring; 10, barrier film; 11, back-up ring; 12, valve seat flap; 13, backsiphonage puppet valve seat; 14, backsiphonage puppet valve lobe; 15, backsiphonage valve body; 15a, vent.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, this is crossed the wall antifreezing valve and is obliquely installed and is installed on the body of wall, the angle of inclination is 5 degree, this frost valve comprises valve body 1, handwheel 2 and the valve rod 3 with water intake 1a and water outlet 1b, wherein water intake 1a is positioned at indoor, water outlet 1b is positioned at outdoor, and water intake 1a highly is higher than water outlet 1b height, is convenient to like this circulation of water.
Valve rod 3 is installed in valve body 1, handwheel 2 is installed on the valve body 1, pressure cap 4 has been threaded on the valve body 1, be provided with pad 5 and filler 6 in pressure cap 4 the inners, valve rod 3 outer ends are run through pad 5, filler 6 and pressure cap 4 and are passed valve body 1 and are connected with handwheel 2, can prevent that by pad 5 water in the valve body 1 from permeating away from the slit between valve body 1 and the pressure cap 4, plays seal action.
At valve rod 3 inner slotting intrinsic swivel nuts 7, swivel nut 7 is connected with valve body 1 inner thread.One way stop peturn valve comprises valve seat poppet 8 and spring 9, valve seat poppet 8 the inners are plugged in the swivel nut 7, the outer end is stretched out swivel nut 7 and is fixed with barrier film 10, back-up ring 11 and valve seat flap 12 by bolt, spring 9 one ends are resisted against in the valve rod 3, and the other end is resisted against on valve seat poppet 8 interior edge faces.Have convex shoulder 1c at valve body 1 water intake 1a inwall, when valve seat flap 12 is resisted against on the convex shoulder 1c, form sealing, thus blocking-up valve body 1 pipeline.
Valve rod 3 offers weep hole 3a for that section that hollow tubular and valve rod 3 expose valve body 1, be that weep hole 3a communicates with the external world, valve closing or open so no matter, by weep hole 3a can both with in the valve rod 3 and the water in the one way stop peturn valve emit, avoid being trapped in water in valve rod 3 and the one way stop peturn valve and under low temperature condition, freeze and damage.It mainly is to emit from weep hole 3a by valve rod 3 inner chambers for the water that can will be trapped in the one way stop peturn valve that valve rod 3 is designed to hollow tubular.
The backsiphonage valve comprises backsiphonage puppet valve seat 13, backsiphonage puppet valve lobe 14 and backsiphonage valve body 15, offer a plurality of vent 15a that communicate with valve body 1 inner chamber at backsiphonage valve body 15, backsiphonage puppet valve lobe 14 fixes on backsiphonage puppet valve seat 13, and can block vent 15a when backsiphonage puppet valve lobe 14 is resisted against on the backsiphonage valve body 15.
When using this antifreezing valve, antifreezing valve need to be tilted be installed in the body of wall, its angle of inclination is 5 degree, and wherein the water intake 1a of valve body 1 is positioned at indoorly, and water outlet 1b is positioned at outdoor, and water intake 1a highly is higher than water outlet 1b height.When rotation hand wheel 2 throttle down, valve seat flap 12 is resisted against on the convex shoulder 1c of valve body 1 inwall, thereby water can't be flow in the valve body 1 from water intake 1a, because valve body 1 is obliquely installed, is trapped in water in the valve body 1 originally and under the self gravitation effect, emits and in valve body 1 interior formation vacuum from water outlet 1b; When rotatable handle is opened valve, valve seat flap 12 breaks away from convex shoulder 1c under the impact of water, valve body 1 interior pipeline is unimpeded, water flow in the valve body 1 and from water outlet 1b from water intake 1a and flows out, and have by part water and flow into valve rod 3 inner chambers through valve seat poppet 8, simultaneously backsiphonage puppet valve seat 13 is at buoyancy of water effect float downward and make backsiphonage puppet valve lobe 14 be resisted against on the backsiphonage valve body 15 and form sealing state; When valve open and under experience is cut off the water suddenly situation, particularly when valve body 1 water outlet 1b place connecting hose, valve seat poppet 8 moves up under spring 9 elastic force effects, and valve seat flap 12 is resisted against on the convex shoulder 1c of valve body 1 inwall, thereby pipeline blockage is lived, being trapped in simultaneously water in the valve body 1 emits and in valve body 1 interior formation vacuum from water outlet 1b under the self gravitation effect, backsiphonage this moment puppet valve seat 13 loses buoyancy of water and descends, backsiphonage puppet valve lobe 14 is broken away from and the contacting of backsiphonage valve body 15, the vent 13a of backsiphonage valve body 15 is in open mode, valve body 1 inside is communicated with atmosphere, avoid the water in the flexible pipe to be back in the valve body 1.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (6)
1. cross the wall antifreezing valve for one kind, be installed on the body of wall, comprise valve body, handwheel and valve rod with water intake and water outlet, described valve rod is installed in the valve body, and the valve rod outer end passes valve body and handwheel is connected, and it is characterized in that, described valve rod is a hollow tubular, place, valve rod outer end offers the weep hole that communicates with stem cavity, between described valve rod and the valve inleting water mouth one way stop peturn valve is installed, and near water outlet the backsiphonage valve is installed in the described valve body.
2. the wall antifreezing valve of crossing according to claim 1 is characterized in that, the inner slotting intrinsic swivel nut of described valve rod, and described swivel nut is threaded with valve interior wall.
3. the wall antifreezing valve of crossing according to claim 2, it is characterized in that, described one way stop peturn valve comprises valve seat poppet and spring, described valve seat poppet the inner is plugged in the swivel nut, the outer end is stretched out swivel nut and is fixed with barrier film, back-up ring and valve seat flap by bolt, described spring one end is resisted against in the valve rod, and the other end is resisted against on the valve seat poppet interior edge face.
4. the wall antifreezing valve of crossing according to claim 3 is characterized in that described valve inleting water mouth inwall has convex shoulder, and above-mentioned valve seat flap is resisted against on the convex shoulder.
5. according to claim 1 and 2 or the 3 or 4 described wall antifreezing valves of crossing, it is characterized in that, described backsiphonage valve comprises backsiphonage puppet valve seat, backsiphonage puppet valve lobe and backsiphonage valve body, offer some vents that communicate with body cavity on the described backsiphonage valve body, described backsiphonage puppet valve lobe fixes on backsiphonage puppet valve seat, and can block vent when backsiphonage puppet valve lobe is resisted against on the backsiphonage valve body.
6. according to claim 1 and 2 or the 3 or 4 described wall antifreezing valves of crossing, it is characterized in that the pressure cap that has been threaded on the described valve body is provided with pad and filler in pressure cap the inner, described valve rod runs through pad, filler and pressure cap and handwheel is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220627810 CN202867939U (en) | 2012-11-22 | 2012-11-22 | Through-wall anti-freezing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220627810 CN202867939U (en) | 2012-11-22 | 2012-11-22 | Through-wall anti-freezing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867939U true CN202867939U (en) | 2013-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220627810 Expired - Fee Related CN202867939U (en) | 2012-11-22 | 2012-11-22 | Through-wall anti-freezing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966766A (en) * | 2012-11-22 | 2013-03-13 | 宁波宏特工贸有限公司 | Through-wall antifreezing valve |
-
2012
- 2012-11-22 CN CN 201220627810 patent/CN202867939U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966766A (en) * | 2012-11-22 | 2013-03-13 | 宁波宏特工贸有限公司 | Through-wall antifreezing valve |
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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: 20130410 Termination date: 20151122 |
|
| EXPY | Termination of patent right or utility model |