CN203176475U - Automatic drain valve - Google Patents
Automatic drain valve Download PDFInfo
- Publication number
- CN203176475U CN203176475U CN 201320116448 CN201320116448U CN203176475U CN 203176475 U CN203176475 U CN 203176475U CN 201320116448 CN201320116448 CN 201320116448 CN 201320116448 U CN201320116448 U CN 201320116448U CN 203176475 U CN203176475 U CN 203176475U
- Authority
- CN
- China
- Prior art keywords
- water
- valve body
- positioning hole
- automatic drain
- spool
- 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
Images
Landscapes
- Sliding Valves (AREA)
Abstract
The utility model provides an automatic drain valve and belongs to the technical field of machinery. The automatic drain valve solves the problems that an existing valve used for preventing a pipeline from freezing is troublesome in operation and low in practicability. The automatic drain valve comprises a barrel-shaped valve body, one end of the valve body is the water inlet end and the other end of the valve body is the water outlet end, a positioning hole is formed inside the valve body in the flowing direction of water, a plurality of limber holes are further formed in the valve body in the circumferential direction of the positioning hole, a valve element capable of moving in the axial direction of the positioning hole is arranged at the position of the positioning hole, a plurality of air inlets communicated with the limber holes through the valve element are formed in the lateral portion of the valve body in the circumferential direction, and the out end of the valve element abuts against the end port of the positioning hole when water flows through the water inlet end of the valve body and blocks the passage between the air inlets and the limber holes. The automatic drain valve has the advantages of being simple in structure, capable of achieving automatic drainage, long in service life and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of automatic drain valve, relates in particular to a kind of automatic air inlet drain valve.
Background technique
At present, running water pipe early becomes the requisite water supply line in rural area and city, and running water pipe all is exposed to outdoor when mounted mostly.Because water tap has residual water in the water pipe when closing, in every like this winter, when temperature descended, running water pipe can not use because freezing with regard to easy, sometimes even the phenomenon of bursting by freezing can occur.The means to prevent freezing that people generally adopt is: the one, at water pipe or water meter surface parcel thermal insulating material; The 2nd, allow the water tap in the family open, keep the thread state always, all not very desirable but above-mentioned both ways obtain effect, and cause the waste of resource easily.
For this reason, people have proposed various solutions in order to address the above problem, and disclose a kind of water supply line frost valve [notification number: CN201902603U as Chinese patent; Application number: 201020648016.0], comprise valve body, be installed with the intake pipe and the outlet pipe that are communicated with body cavity on the valve body, be provided with the water supply valve seat that intake pipe is communicated with outlet pipe in the body cavity, on the water supply valve seat there be by extending to the water supply valve plug that the outer driveshaft of valve body drives the sealing compression fit, also be installed with the waste pipe that is communicated with the outlet pipe bottom on the valve body, be installed with the drain valve seat with outlet pipe and waste pipe connection in the body cavity, sealing compresses the draining valve plug by driveshaft control on the drain valve seat.It handles the draining valve plug by driveshaft, and outlet pipe and waste pipe are connected together, and the water that remains in the outlet pipe is just discharged in waste pipe.
But above-mentioned water supply line frost valve is being handled by driveshaft before drain valve fills in capable draining, also needs to utilize to handle the water supply valve plug and cut off path between intake pipe and the outlet pipe, and it is just cumbersome to operate like this, and loses time.In addition, its structure more complicated, and because driveshaft needs manual control, and this makes that also the practicability of this frost valve is lower, use value is not high.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist at prior art, has proposed a kind of simple in structure, automatic drain valve that can carry out draining automatically.
The purpose of this utility model can realize by following technical proposal: a kind of automatic drain valve, comprise tubular valve body, two ends of valve body is respectively feed-water end and waterexit end, it is characterized in that, have in the described valve body along the positioning hole of water (flow) direction setting and the some water ports that circumferentially arrange along positioning hole, described positioning hole place is provided with the spool that can move along its axis, described valve body sidepiece is circumferentially with the inlet hole that some and above-mentioned water port is connected by spool, and described spool outer end is resisted against the positioning hole port and the path between inlet hole and the water port is cut off when feed-water end is intake.
This automatic drain valve its feed-water end in use is connected on the water tap, and the waterexit end is connected with water pipe.When water tap was opened, to the direction motion of spool the inner, the spool outer end was resisted against the positioning hole port to spool under the hydraulic pressure effect, and the path between inlet hole and the water port is cut off, and current can only flow to the waterexit end of valve body from the water port, and this is for normally going out water state.
When water tap is closed, pressure in the valve body diminishes, the outer air of valve body sucks from inlet hole, and spool end motion outside it under the effect of gas pressure intensity, thereby make inlet hole communicate with the water port, air enters in the water pipe via the water port, thereby makes that the water that remains in the water pipe is discharged under the pressure effect of gas automatically, and this just makes water pipe can not produce the phenomenon of freezing.
In above-mentioned automatic drain valve, described spool is the T font, and the spool outer end has seal groove ringwise, is provided with O-ring seals in the described annular seal groove, and described O-ring seals is resisted against the positioning hole port when feed-water end is intake.
When the feed-water end of valve body is in into the water state, the effect lower valve core of hydraulic pressure to it in the extreme direction motion, the O-ring seals of spool outer end just is resisted against the port of positioning hole and with its sealing, when normal water outlet, water can be from positioning hole to external leakage like this.
In above-mentioned automatic drain valve, the inner sidepiece of described spool is provided with some vents, and described inlet hole is connected by vent with the water port.
After feed-water end stopped into water, air sucked the spool of going forward side by side from inlet hole automatically and promotes toward the direction of spool outer end, and air enters the water port from the vent of spool sidepiece more then, thereby the water that makes air will remain in the water pipe is discharged.
In above-mentioned automatic drain valve, described valve body is connected with anti-theft screw in the side thread at feed-water end place, and described anti-theft screw outer end has tapered broken part.
The valve inleting water end screws anti-theft screw after linking by engage thread and water tap, and then utilizes instrument that anti-theft screw place, broken part is from it fractureed, and valve body just can not disassemble from water tap more like this, has played antitheft effect.
In above-mentioned automatic drain valve, described positioning hole port inboard has the retaining edge of protrusion, and described spool inner end has can be resisted against retaining along last shoulder block.Spool can be along the positioning hole axial motion, by cooperating of shoulder block and retaining edge, can guarantee that again spool can not spin off from positioning hole.
In above-mentioned automatic drain valve, described valve inleting water end place is provided with packing holder, and described packing holder is provided with seal washer.Seal washer can prevent the leakage between water tap and the valve body.
In above-mentioned automatic drain valve, the quantity of described inlet hole is 4.
Compared with prior art, this automatic drain valve is simple in structure, and the inside and outside air pressure difference of valve body when utilizing water tap to close makes the outer air of valve body enter the water that valve body will remain in the water pipe automatically and discharges automatically; Sidepiece at valve inleting water end place arranges an anti-theft screw, when guaranteeing that valve body and water tap are connected firmly, can also play antitheft effect; This automatic drain valve volume is little, and can change when spool damages, long service life, and cost of production is low; This automatic drain valve also utilizes seal washer to prevent the leakage at valve inleting water end place, and reveals from the valve body air inlet position when utilizing the capable seal ring of O on the spool to prevent from normally intaking.
Description of drawings
Partial sectional view when Fig. 1 is the normal water outlet of this automatic drain valve.
Sectional view when Fig. 2 is the automatic draining of this automatic drain valve.
Fig. 3 is the sectional view at A-A place in this automatic drain valve.
Among the figure, 1, valve body; 2, feed-water end; 3, waterexit end; 4, positioning hole; 5, water port; 6, spool; 7, inlet hole; 8, ring packing ring recess; 9, O-ring seals; 10, vent; 11, anti-theft screw; 12, broken part; 13, retaining edge; 14, shoulder block; 15, packing holder; 16, seal washer.
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.
Embodiment one
As depicted in figs. 1 and 2, a kind of automatic drain valve comprises tubular valve body 1, and the two ends of valve body 1 are respectively feed-water end 2 and waterexit end 3, feed-water end 2 places of valve body 1 have for the internal thread that links with water tap, and 3 places, waterexit end of valve body 1 have for the outside thread that links with water pipe.Have in the valve body 1 along the positioning hole 4 of water (flow) direction setting and the some water ports 5 that circumferentially arrange along positioning hole 4, feed-water end 2 and the waterexit end 3 of valve body 1 are connected by the water flowing end.In the present embodiment, the quantity of water port 5 is 8, but the quantity of water port 5 also can be set according to the specification of valve body 1.
As depicted in figs. 1 and 2, positioning hole 4 places are provided with the spool 6 that can move along its axis, and spool 6 is the T font, and the outer end of spool 6 has seal groove ringwise, is provided with O-ring seals 9 in the annular seal groove.The retaining that positioning hole 4 port inboards have protrusion is along 13, and spool 6 inner ends have can be resisted against retaining along the shoulder block 14 on 13, by shoulder block 14 and retaining along 13 cooperate can guarantee that spool 6 can not spin off in positioning hole 4.In the present embodiment, spool 6 can adopt copper or plastic material to make, and adopts copper product to make then long service life, adopts plastic material to make that then cost of production is lower.
As Fig. 1, Fig. 2 and shown in Figure 3, valve body 1 sidepiece is circumferentially with some inlet holes 7 that are connected by spool 6 with water port 5, spool 6 inner sidepieces have some vents 10, inlet hole 7 can be connected by vent 10 with water port 5, when the O-ring seals 9 of spool 6 outer ends was resisted against positioning hole 4 ports, the path between inlet hole 7 and the water port 5 was cut off.In the present embodiment, the quantity of inlet hole 7 is 4.
This automatic drain valve in use, the feed-water end of valve body 12 links with water tap, waterexit end 3 and the water pipe of valve body 1 link.Especially the feed-water end 2 of valve body 1 is with after water tap finishes by being threaded, anti-theft screw 11 with valve body 1 sidepiece screws again, valve body 1 just is locked together with water tap, and then utilize instrument that the broken part 12 of anti-theft screw 11 by its outer end fractureed, guarantee that so just valve body 1 can not disassemble from water tap, has played antitheft effect outside no special tool.
As shown in Figure 1, being in open mode at water tap is that valve body 1 feed-water end 2 is fashionable by current, spool 6 moves to the direction of spool 6 the inners under the effect of hydraulic pressure, the O-ring seals 9 of spool 6 outer ends just together is subjected to the hydraulic pressure effect and leans port at positioning hole 4, path between inlet hole 7 and the water port 5 is cut off, simultaneously current also can not flow out from inlet hole 7, can only be from the water port 5 in the valve body 13 flow out to the waterexit end.
As shown in Figure 2, and when water tap is closed, valve body 1 feed-water end 2 does not have water inlet again, because pressure reduction diminishes in the water pipe, valve body 1 outer air just sucks in inlet hole 7 automatically, spool 6 is subjected to gas pressure and moves to spool 6 outer ends, the shoulder block 14 of spool 6 inner ends is resisted against the retaining of positioning hole 4 port inboards along on 13, this moment, inlet hole 7 was connected with the vent 10 of water port 5 by spool 6 inner sidepieces, thereby air can enter in the water port 5, the water that utilizes gas pressure will remain in the water pipe is then discharged automatically, and just can there be the phenomenon of freezing in water pipe more like this.
Specific embodiment described herein only is that the utility model spirit is illustrated.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 (7)
1. automatic drain valve, comprise tubular valve body (1), the two ends of valve body (1) are respectively feed-water end (2) and waterexit end (3), it is characterized in that, have in the described valve body (1) along the positioning hole (4) of water (flow) direction setting and the some water ports (5) that circumferentially arrange along positioning hole (4), described positioning hole (4) locates to be provided with the spool (6) that can move along its axis, described valve body (1) sidepiece is circumferentially with the inlet hole (7) that some and above-mentioned water port (5) is connected by spool (6), and described spool (6) outer end is resisted against positioning hole (4) port and the path between inlet hole (7) and water port (5) is cut off when feed-water end (2) is intake.
2. automatic drain valve according to claim 1, it is characterized in that, described spool (6) is the T font, spool (6) outer end has seal groove ringwise, be provided with O-ring seals (9) in the described annular seal groove, described O-ring seals (9) is resisted against positioning hole (4) port when feed-water end (2) is intake.
3. automatic drain valve according to claim 1 is characterized in that, the inner sidepiece of described spool (6) is provided with some vents (10), and described inlet hole (7) is connected by vent (10) with water port (5).
4. according to claim 1 or 2 or 3 described automatic drain valves, it is characterized in that, the side thread that described valve body (1) is located at feed-water end (2) is connected with anti-theft screw (11), and described anti-theft screw (11) outer end has tapered broken part (12).
5. according to claim 1 or 2 or 3 described automatic drain valves, it is characterized in that described positioning hole (4) port inboard has the retaining of protrusion along (13), described spool (6) inner end has can be resisted against retaining along the shoulder block (14) on (13).
6. according to claim 1 or 2 or 3 described automatic drain valves, it is characterized in that described valve body (1) feed-water end (2) locates to be provided with packing holder (15), described packing holder (15) is provided with seal washer (16).
7. according to claim 1 or 2 or 3 described automatic drain valves, it is characterized in that the quantity of described inlet hole (7) is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116448 CN203176475U (en) | 2013-03-14 | 2013-03-14 | Automatic drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116448 CN203176475U (en) | 2013-03-14 | 2013-03-14 | Automatic drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176475U true CN203176475U (en) | 2013-09-04 |
Family
ID=49073172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320116448 Expired - Lifetime CN203176475U (en) | 2013-03-14 | 2013-03-14 | Automatic drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799547A (en) * | 2018-09-06 | 2018-11-13 | 张�杰 | A kind of Auto-drainage connector |
-
2013
- 2013-03-14 CN CN 201320116448 patent/CN203176475U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799547A (en) * | 2018-09-06 | 2018-11-13 | 张�杰 | A kind of Auto-drainage connector |
| CN108799547B (en) * | 2018-09-06 | 2023-05-26 | 张�杰 | Automatic drainage joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201007377Y (en) | Automatically water cut-off valve | |
| CN203214951U (en) | Combined two-path four-way ball valve | |
| CN202691161U (en) | Adjustment valve | |
| CN204459245U (en) | Antifreeze ball valve | |
| CN202901385U (en) | Stop valve with drain valve | |
| CN103696470B (en) | Three-cavity self-closing time-delay flushing valve core | |
| CN203176475U (en) | Automatic drain valve | |
| CN209458430U (en) | A kind of overflow valve with inverse-stopping functions | |
| CN205047861U (en) | Tap prevents frostbite | |
| CN201795126U (en) | Automatic water draining valve | |
| CN103542141B (en) | A kind of making method of ball check valve | |
| CN203202316U (en) | Rotary-opening type check valve | |
| CN203431233U (en) | Antifreezing ball valve | |
| CN205207862U (en) | Pneumatic plunger valve of PTFE | |
| CN104295774B (en) | Anti-backflow and anti-freeze stop valve | |
| CN108071849B (en) | Foot valve with flow temperature regulating device | |
| CN210088074U (en) | Water inlet connector of constant-temperature bathroom equipment | |
| CN203614826U (en) | Stacked unidirectional valve | |
| CN205136688U (en) | Low resistance backflow preventer | |
| CN201209682Y (en) | Water-braking non-pressure water drain valve for electric water heater | |
| CN205745409U (en) | Integral type can ball valve with lock | |
| KR200462905Y1 (en) | Frozen to burst prevention device for water pipe | |
| KR200409417Y1 (en) | Water pipe connection with valve for connecting water-pipe | |
| CN202188174U (en) | Hose check valve | |
| CN2924203Y (en) | Valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |