CN201909075U - Vacuum breaker - Google Patents

Vacuum breaker Download PDF

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Publication number
CN201909075U
CN201909075U CN2011200048568U CN201120004856U CN201909075U CN 201909075 U CN201909075 U CN 201909075U CN 2011200048568 U CN2011200048568 U CN 2011200048568U CN 201120004856 U CN201120004856 U CN 201120004856U CN 201909075 U CN201909075 U CN 201909075U
Authority
CN
China
Prior art keywords
guide rod
valve
cover plate
vacuum breaker
suction port
Prior art date
Application number
CN2011200048568U
Other languages
Chinese (zh)
Inventor
顾立雄
Original Assignee
上海高桥水暖设备有限公司
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 上海高桥水暖设备有限公司 filed Critical 上海高桥水暖设备有限公司
Priority to CN2011200048568U priority Critical patent/CN201909075U/en
Application granted granted Critical
Publication of CN201909075U publication Critical patent/CN201909075U/en

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Abstract

The utility model provides a vacuum breaker, which comprises a valve body connected onto a water supplying pipeline, wherein a suction hole is arranged on the valve body, a guide rod is arranged in the suction hole, the upper end of the guide rod extends in the interior of the valve body, and a cover plate is arranged at the upper end of the guide rod. The utility model has the advantages that the structure is simple, the forming of vacuum in the water supplying pipeline can be eliminated automatically, and the syphonage and pollution in reflux can be effectively avoided.

Description

Vacuum breaker

Technical field

The utility model relates to a kind of valve, particularly discloses a kind of vacuum breaker that is installed in the destruction vacuum on the water supply line, is applied to the domestic water supply valve.

Background technique

The residential building building, factory building, water supply network situation complexity in the occasions such as laboratory, and communicate with the main-supply net in city, and hydraulic pressure is not invariable in the pipe network, when situation such as the too much or local pipeline section emptying of water consumption occurring when part in the pipe network, can form negative pressure, the reverse siphon of flowing water that goes out in downstream is returned and is responsible in the net.The appearance of this situation is breakneck, because can not guarantee whether the water that refluxes is contaminated even toxic.Device that does not almost address this problem in the market or equipment.

Summary of the invention

The purpose of this utility model is to overcome problems of the prior art, provides a kind of simple in structure, can eliminate the formation of vacuum in the water supply line automatically, effectively prevents the vacuum breaker that the siphon backflow pollution takes place.

The utility model is achieved in that a kind of vacuum breaker, it is characterized in that: comprise the valve body that is connected on the water supply line, described valve body is provided with suction port, is provided with guide rod in the described suction port, valve inner is stretched in described guide rod upper end, and the upper end of described guide rod is provided with cover plate.

The upper end of described suction port is provided with seal ring, and described cover plate covers on seal ring.

The surface of described guide rod and cover plate is a smooth surface.

Described guide rod is vertical mutually with horizontal plane.

The utility model relies on the atmospheric pressure in the external environment condition, and when water supply line inside was negative pressure, external pressure backed down the cover plate that covers on the valve suction port, makes outside air enter pipeline, destroyed vacuum in the pipe.

The beneficial effects of the utility model are: can eliminate the formation of vacuum in the water supply line automatically, effectively prevent the generation of siphon backflow pollution.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the connection diagram of the utility model and water pipe.

Fig. 3 is the utility model guide rod and the cover plate configuration state figure during by jack-up.

Fig. 4 is the structural representation that the utility model embodiment one is connected with water pipe.

Among the figure: 1, valve body; 2, seal ring; 3, guide rod; 4, cover plate; 5, suction port; 6, water supply line; 7, hollow arrow; 8, filled arrows; 9, tee union.

Embodiment

According to Fig. 1~Fig. 4, the utility model comprises the valve body 1 that is connected on the water supply line 6, and described valve body 1 is provided with suction port 5, is provided with guide rod 3 in the described suction port 5, and valve body 1 inside is stretched in described guide rod 3 upper ends, and the upper end of described guide rod 3 is provided with cover plate 4.The upper end of described suction port 5 is provided with seal ring 2, and described cover plate 4 covers on seal ring 2.The surface of described guide rod 3 and cover plate 4 is a smooth surface.Described guide rod 3 is vertical mutually with horizontal plane.Hollow arrow 7 among Fig. 2 is the direction of current in the water supply line.Filled arrows 8 is the flow direction of cover plate 4 air during by jack-up among Fig. 3.

In Fig. 1~Fig. 3, described valve body 1 is the both ends open type, and the two ends of valve body 1 link to each other with water supply line 6 respectively.

Embodiment one: as Fig. 4, described valve body 1 is an end opening type, and valve body 1 links to each other all the other structures such as above-mentioned by tee union 9 with water supply line 6.

The utility model when mounted, guide rod 3 will guarantee horizontal by plumbness, could guarantee like this that cover plate 4 can fall with own wt to cover seal ring 2 when free state, prevents to leak.In any case the shape of described valve body 1 changes, the relative position relation of seal ring 2, guide rod 3, cover plate 4, suction port 5 immobilizes.

Claims (4)

1. vacuum breaker, it is characterized in that: comprise the valve body that is connected on the water supply line, described valve body is provided with suction port, is provided with guide rod in the described suction port, and valve inner is stretched in described guide rod upper end, and the upper end of described guide rod is provided with cover plate.
2. according to the described vacuum breaker of claim 1, it is characterized in that: the upper end of described suction port is provided with seal ring, and described cover plate covers on seal ring.
3. according to the described vacuum breaker of claim 1, it is characterized in that: the surface of described guide rod and cover plate is a smooth surface.
4. according to the described vacuum breaker of claim 1, it is characterized in that: described guide rod is vertical mutually with horizontal plane.
CN2011200048568U 2011-01-10 2011-01-10 Vacuum breaker CN201909075U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200048568U CN201909075U (en) 2011-01-10 2011-01-10 Vacuum breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200048568U CN201909075U (en) 2011-01-10 2011-01-10 Vacuum breaker

Publications (1)

Publication Number Publication Date
CN201909075U true CN201909075U (en) 2011-07-27

Family

ID=44301276

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200048568U CN201909075U (en) 2011-01-10 2011-01-10 Vacuum breaker

Country Status (1)

Country Link
CN (1) CN201909075U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102828548A (en) * 2012-08-24 2012-12-19 娄底市朝阳塑胶有限公司 Pressure balancing device used for drainpipe
CN103130324A (en) * 2011-11-23 2013-06-05 同济大学 Vacuum breaker for preventing siphon generation
CN103791122A (en) * 2013-10-23 2014-05-14 上海三盛金属制品有限公司 Negative pressure siphoning backflow vacuum valve
CN103906957A (en) * 2011-10-27 2014-07-02 多歌公司 A through-flow valve arrangement
WO2018093321A1 (en) * 2016-11-15 2018-05-24 Aktiebolaget Durgo Waste water piping system and an air valve

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103906957B (en) * 2011-10-27 2016-11-02 多歌公司 Valve gear and include the running water system of this valve gear
CN103906957A (en) * 2011-10-27 2014-07-02 多歌公司 A through-flow valve arrangement
CN103130324B (en) * 2011-11-23 2014-08-13 同济大学 Vacuum breaker for preventing siphon generation
CN103130324A (en) * 2011-11-23 2013-06-05 同济大学 Vacuum breaker for preventing siphon generation
CN102828548A (en) * 2012-08-24 2012-12-19 娄底市朝阳塑胶有限公司 Pressure balancing device used for drainpipe
CN102828548B (en) * 2012-08-24 2014-04-02 娄底市朝阳塑胶有限公司 Pressure balancing device used for drainpipe
CN103791122A (en) * 2013-10-23 2014-05-14 上海三盛金属制品有限公司 Negative pressure siphoning backflow vacuum valve
CN103791122B (en) * 2013-10-23 2016-08-17 上海三盛金属制品有限公司 Negative-pressure siphon backflow vacuum valve
WO2018093321A1 (en) * 2016-11-15 2018-05-24 Aktiebolaget Durgo Waste water piping system and an air valve

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110727

Termination date: 20140110