CN202901385U - Stop valve with drain valve - Google Patents

Stop valve with drain valve Download PDF

Info

Publication number
CN202901385U
CN202901385U CN 201220605879 CN201220605879U CN202901385U CN 202901385 U CN202901385 U CN 202901385U CN 201220605879 CN201220605879 CN 201220605879 CN 201220605879 U CN201220605879 U CN 201220605879U CN 202901385 U CN202901385 U CN 202901385U
Authority
CN
China
Prior art keywords
valve
drain
stop
cavity
spool
Prior art date
Application number
CN 201220605879
Other languages
Chinese (zh)
Inventor
方建土
祝云霞
王朝阳
陈菁菁
叶俏
葛涛涛
Original Assignee
宁波华成阀门有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 宁波华成阀门有限公司 filed Critical 宁波华成阀门有限公司
Priority to CN 201220605879 priority Critical patent/CN202901385U/en
Application granted granted Critical
Publication of CN202901385U publication Critical patent/CN202901385U/en

Links

Abstract

The utility model discloses a stop valve with a drain valve. The stop valve with the drain valve comprises a valve body, a stop valve component and a drain valve component. The stop valve with the drain valve is characterized in that a water inlet and a water outlet are separated by the stoop valve, and the drain valve is separated between a water outlet and a water drainage outlet. A valve rod of the stop valve and a valve core of the stop valve can mutually slide, so that non-return effect is good and secondary pollution is effectively prevented. Hydrops in a pipeline can be drained by opening of the drain valve. The drain valve has a non-return effect so as to be capable of preventing backflow pollution.

Description

A kind of stop valve with drain valve
Technical field
The utility model relates to a kind of stop valve, especially a kind of stop valve with drain valve that can prevent that medium from flowing backwards.
Background technique
In traditional supply channel or supply air line, there are some to need stop valve to cut off, need again to prevent the occasion of medium back flow, because stop valve and safety check will be installed simultaneously, installing space is large, and pipe interface is many, cause complexity is installed, leakage point is many, in addition, in some occasion, for example farm dispenser, after dispenser was finished, hope can be emptying the hydrops between stop valve and the terminal valve, in order to avoid pollution has been made in next dispenser, therefore need in valve and pipeline, increase emptier.
Summary of the invention
Technical problem to be solved in the utility model is the present situation for prior art, provides a kind of simple in structure, and non-return is effective, effectively prevents the stop valve with drain valve of secondary pollution.
The utility model solves the problems of the technologies described above and the technological scheme that adopts is: a kind of stop valve with drain valve comprises valve body, shut-off valve assemblies, drain valve assembly; Be provided with water intake, water outlet, drain opening, stop valve cavity, drain valve cavity on the valve body, in the stop valve cavity seat of stop valve arranged, the drain valve valve seat is arranged in the drain valve cavity; Shut-off valve assemblies comprises spool, valve rod, valve gap, seal ring, clamping cap and handle; The drain valve assembly comprises spool, valve rod, seal ring and bonnet, it is characterized in that: cut off by stop valve between water intake and the water outlet, cut off by drain valve between water outlet and the drain opening.
As improvement, the spool bottom of described shut-off valve assemblies is provided with a gasket seal, and the stem lower portion of described shut-off valve assemblies has a cylindrical cavity, and spool top is installed in the stem lower portion cavity, between the two can relative sliding.
As improvement, the threaded stem of described shut-off valve assemblies is connected in the valve gap, and the valve gap screw thread is fixed in the valve body.
As improvement, the spool bottom of described drain valve assembly is provided with a gasket seal, and the stem lower portion of described drain valve assembly has a cylindrical cavity, and spool top is installed in the stem lower portion cavity, between the two can relative sliding.
As improvement, the threaded stem of described drain valve assembly is connected in the valve body, and the outside gear has bonnet, and the bonnet screw thread is fixed in the valve body.
As improvement, all with being threaded, drain opening adopts the zigzag fashion hose connection to described valve body inlet and outlet connectors.
Compared with prior art, the utility model has the advantage of: can relative sliding between the spool of described shut-off valve assemblies and the valve rod, when outlet pressure during greater than inlet pressure, under the effect of pressure reduction, spool contacts with valve seat fast, and valve closing has effectively prevented backflow and secondary pollution; When described stop valve is closed, need to carry out the medium of pipeline behind the valve opening exhaust-valve when emptying, the medium in the pipeline can be undertaken by drain opening emptying, and in addition, drain opening can also connecting hose imports to medium specifies the place to process.
Description of drawings
Fig. 1 is structure sectional view of the present utility model.
Fig. 2 is the structure sectional view of shut-off valve assemblies described in the utility model and drain valve assembly.
Embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
A kind of stop valve with drain valve as described in such as figure being comprises valve body 1, shut-off valve assemblies 2, drain valve assembly 3; Be provided with water intake 11, water outlet 12, drain opening 13, stop valve cavity 14, drain valve cavity 15 on the valve body 1, seat of stop valve 16 is arranged in the stop valve cavity 14, drain valve valve seat 16 is arranged in the drain valve cavity 15; Shut-off valve assemblies 2 comprises spool 21, valve rod 22, valve gap 23, seal ring 24 and 25, clamping cap 26 and handle 27; The drain valve assembly comprises spool 31, valve rod 32, seal ring 34 and 35, bonnet 33.All with being threaded, drain opening 13 adopts the zigzag fashion hose connection for described valve inleting water mouth 11 and water outlet 12.
Spool 21 bottoms of described shut-off valve assemblies 2 are provided with a gasket seal 28, and a cylindrical cavity is arranged at valve rod 22 bottoms of described shut-off valve assemblies 2, and spool top is installed in the stem lower portion cavity, between the two can relative sliding.The valve rod 22 of described shut-off valve assemblies 2 is threaded in the valve gap 23, and valve gap 23 screw threads are fixed in the valve body 1, seals by seal ring 24 between valve gap 23 and the valve body 1.The mutual rotation moves up and down valve rod 22 between described valve rod 22 and the valve gap 23, seals by turning clamping cap 26 compresses seal 25 between valve rod 22 and the valve gap 23.Interference fit between described valve rod 22 and the handle 27.
Spool 31 bottoms of described drain valve assembly 3 are provided with a gasket seal 36, and a cylindrical cavity is arranged at valve rod 22 bottoms of described drain valve assembly 3, and spool top is installed in the stem lower portion cavity, between the two can relative sliding.The valve rod 32 of described shut-off valve assemblies 3 is threaded in the valve body 1, mutually rotates between valve rod 32 and the valve body 1 valve rod 22 is moved up and down.Bonnet 33 screw threads are fixed in the valve body 1, seal by seal ring 35 between bonnet 33 and the valve body 1.Seal by seal ring 34 between valve rod 32 and the bonnet 33.Described valve rod 32 heads are milled with square toes, and are convenient with instrument rotation valve rod 32.
Working principle of the present utility model is further described: under normal circumstances, turn the handle 27 of described shut-off valve assemblies 2, make valve rod 22 rise to suitable height, under the effect of hydraulic pressure, spool 21 breaks away from valve open, normal water supply with seat of stop valve 16; When outlet pressure during greater than inlet pressure, under the effect of pressure reduction, spool 21 contacts with seat of stop valve 16 fast, and valve closing has effectively prevented backflow and secondary pollution.When described stop valve is closed, need to carry out the medium of pipeline behind the valve when emptying, turn the valve rod 32 of described drain valve assembly 3 with instrument, open drain valve, medium in the pipeline can be undertaken emptying by drain opening 3, in addition, drain opening 3 can also connecting hose imports to medium and specifies the place to process.When the pressure of drain opening 3 during greater than loine pressure, under the effect of hydraulic pressure, described spool 31 and drain valve valve seat 17 close contacts, drain shut valve, this moment, it played safety check, had effectively prevented backflow and secondary pollution.

Claims (6)

1. the stop valve with drain valve comprises valve body, shut-off valve assemblies, drain valve assembly; Be provided with water intake, water outlet, drain opening, stop valve cavity, drain valve cavity on the valve body, in the stop valve cavity seat of stop valve arranged, the drain valve valve seat is arranged in the drain valve cavity; Shut-off valve assemblies comprises spool, valve rod, valve gap, seal ring, clamping cap and handle; The drain valve assembly comprises spool, valve rod, seal ring and bonnet, it is characterized in that: cut off by stop valve between water intake and the water outlet, cut off by drain valve between water outlet and the drain opening.
2. the stop valve with drain valve according to claim 1, it is characterized in that: the spool bottom of described shut-off valve assemblies is provided with a gasket seal, the stem lower portion of described shut-off valve assemblies has a cylindrical cavity, and spool top is installed in the stem lower portion cavity, between the two can relative sliding.
3. the stop valve with drain valve according to claim 1, it is characterized in that: the threaded stem of described shut-off valve assemblies is connected in the valve gap, and the valve gap screw thread is fixed in the valve body.
4. the stop valve with drain valve according to claim 1, it is characterized in that: the spool bottom of described drain valve assembly is provided with a gasket seal, the stem lower portion of described drain valve assembly has a cylindrical cavity, and spool top is installed in the stem lower portion cavity, between the two can relative sliding.
5. the stop valve with drain valve according to claim 1, it is characterized in that: the threaded stem of described drain valve assembly is connected in the valve body, and the outside gear has bonnet, and the bonnet screw thread is fixed in the valve body.
6. the stop valve with drain valve according to claim 1 is characterized in that: all with being threaded, drain opening adopts the zigzag fashion hose connection to described valve body inlet and outlet connectors.
CN 201220605879 2012-11-16 2012-11-16 Stop valve with drain valve CN202901385U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220605879 CN202901385U (en) 2012-11-16 2012-11-16 Stop valve with drain valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220605879 CN202901385U (en) 2012-11-16 2012-11-16 Stop valve with drain valve

Publications (1)

Publication Number Publication Date
CN202901385U true CN202901385U (en) 2013-04-24

Family

ID=48122056

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220605879 CN202901385U (en) 2012-11-16 2012-11-16 Stop valve with drain valve

Country Status (1)

Country Link
CN (1) CN202901385U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103982681A (en) * 2014-05-30 2014-08-13 宋景涛 Integrated double-channel stop valve
CN105736388A (en) * 2016-02-29 2016-07-06 蒋燕群 Automatic control type efficient self sucking pump
CN105756948A (en) * 2016-02-29 2016-07-13 蒋燕群 Efficient intelligent self-control self-sucking pump
CN107429855A (en) * 2015-03-05 2017-12-01 丹佛斯有限公司 Refrigerant valve arrangement
CN112066042A (en) * 2020-07-31 2020-12-11 清华大学 Control rod drive line non-return combination valve structure and control rod water pressure drive system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103982681A (en) * 2014-05-30 2014-08-13 宋景涛 Integrated double-channel stop valve
CN107429855A (en) * 2015-03-05 2017-12-01 丹佛斯有限公司 Refrigerant valve arrangement
CN107429855B (en) * 2015-03-05 2020-04-07 丹佛斯有限公司 Refrigerant valve arrangement
CN105736388A (en) * 2016-02-29 2016-07-06 蒋燕群 Automatic control type efficient self sucking pump
CN105756948A (en) * 2016-02-29 2016-07-13 蒋燕群 Efficient intelligent self-control self-sucking pump
CN112066042A (en) * 2020-07-31 2020-12-11 清华大学 Control rod drive line non-return combination valve structure and control rod water pressure drive system

Similar Documents

Publication Publication Date Title
CN203297709U (en) Bottom-in side-out magnetic type delayed flush valve element
CN102494166B (en) Overflowing protective valve
CN203500596U (en) Hard-and-soft sealing structure of valve flap of spring type safety valve
CN204201125U (en) Inner chamber closes spool
CN202597803U (en) Self-sealing check valve
CN201326869Y (en) Inflatable closure plug
CN203906910U (en) Axial-flow type ball check valve
CN201007377Y (en) Automatically water cut-off valve
CN103791108A (en) Portable and quick-open type high-pressure stop valve
CN204226765U (en) A kind of spring safety valve and Anesthesia machine
CN204201170U (en) Sealed valve core
CN103277544B (en) A kind of antireverse valve spool device
CN203395225U (en) Simple water nozzle
CN208619810U (en) A kind of spherical seal stop valve
CN204942564U (en) A kind of handle type butterfly valve for pipe-line system
CN204437296U (en) Embedded forging Y type is without bonnet stop valve
CN207661167U (en) Bent leg structure and hot and cold water tap
CN101055042A (en) Water tap
CN201992149U (en) Low-temperature safety valve
CN207598987U (en) Filtering valve
CN204267849U (en) Field irrigation combined type water supply device
CN202203443U (en) High-adding-opening three-way valve with guide throttle device
CN101487534B (en) Anti-locking security water-saving break valve with adjustable pipe connection movable joint length
CN102116377B (en) Water-saving antifreezing device
CN202992272U (en) Electromagnetic valve

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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130424

Termination date: 20181116