CN2116132U - Non-return wash-out valve - Google Patents

Non-return wash-out valve Download PDF

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Publication number
CN2116132U
CN2116132U CN 91224582 CN91224582U CN2116132U CN 2116132 U CN2116132 U CN 2116132U CN 91224582 CN91224582 CN 91224582 CN 91224582 U CN91224582 U CN 91224582U CN 2116132 U CN2116132 U CN 2116132U
Authority
CN
China
Prior art keywords
valve
water
spool
valve body
return wash
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
Application number
CN 91224582
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Chinese (zh)
Inventor
王荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN 91224582 priority Critical patent/CN2116132U/en
Publication of CN2116132U publication Critical patent/CN2116132U/en
Granted legal-status Critical Current

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Abstract

The utility model discloses a non-return wash-out valve which belongs to a frost crack proof discharge valve device for feed piping. The non-return wash-out valve is composed of a valve body, a spring and a rubber pad. The non-return wash-out valve is characterized in that the inside of the valve body is provided with a boss-shaped spacer plate; the point of the center of the boss-shaped spacer plate is provided with a valve core with an axis rod; the valve core is provided with A, B two taper-shaped cutoff surfaces, which can control the flow of the bidirectional water; when the pump is stopped because of accidents, the end of a water inlet is closed, and the drainage end is opened. The utility model has the functions of automatic regulation of opening and closing, which effectively reaches the aim that the piping and the water pump are prevented from being frosted to damage.

Description

Non-return wash-out valve
The utility model belongs to the drain valve device of anti-bursting by freezing in the feed piping.At present, the feedwater piping that the selected scenes, mine is used is in open-air high mountain mostly, and exposes outside.Especially in cold season, because of stopping production, have a power failure or when having an accident termination of pumping, ducted water flow velocity reducing, and can occur flowing backwards, and makes to have water in the pipeline, causes frost crack pipe, not only changing pipeline needs fund, more causing the economic loss of bringing after the maintenance that stops production.
Disclosed safety check in known present technology is that purpose designs to prevent that water from flowing backwards all mostly.Though in use controlled the refluence of water, because of there being a large amount of water in the pipeline,, need maintain and replace in the winter time easily with frost crack pipe, cause manpower, waste on the material resources and loss.
The purpose of this utility model provides a kind of improved non-return drain valve, and when in the feed piping during pumping accident, this valve can drain the water that flows backwards in the pipeline, has realized closing of automatic regulating valve core, has protected water pump and pipeline.
Be provided with boss shape dividing plate (7) in the front valve shell (2) that the technical solution of the utility model is achieved in that a kind of non-return drain valve and rear valve body (16) joint, and the spool (3) of tape spool bar is installed in the center of dividing plate (7), has two taper type stop surface of A, B on the spool (3).
The utility model has compared to existing technology: reasonable in design, and can control bimodal current automatically, and ducted water can be drained in cold season, reduce the maintenance of pipeline, the working life of having improved pipeline.
The drawing explanation of accompanying drawing:
Fig. 1 is a structural drawing of the present utility model.
The utility model will be further described in conjunction with the embodiments:
See accompanying drawing 1.The front valve shell (2) and the rear valve body (16) that adopt cast iron materials to make, be respectively equipped with water intake (1) and water outlet (8) on the front valve shell (2), have spilled water hole (15) on the rear valve body (16), and in the joint of front valve shell (2) and rear valve body (16), rubber cushion (10) and boss shape dividing plate (7) are installed, by bolt (9) its front valve shell (2) and rear valve body (16) are fixed into one, make it boss shape dividing plate (7) and be fixed in the valve body.The boss place of boss shape dividing plate (7) has one by hole (6), central axis has an axle sleeve (12), have some water ports (11) are equipped with the tape spool bar in axle sleeve (12) spool (3) around the axle sleeve (12), spool has A respectively on (3), two taper type stop surface of B, the B end face upper shaft lever (4) of axle sleeve (12) one sides and spool (3) is provided with spring (5), spool (3) is automatically reset, for preventing that spool (3) from coming off, and on the other end of axostylus axostyle (4), be equipped with packing ring (13) and pin (14) is limited, when spool (3) was not worked shape, the A end face contacted with water intake (1) interior edge face; When normal operation, the high pressure water of water intake (1) end reaches the greatest limit position with the A end of spool (3), simultaneously, spring (5) is compressed, the B end of spool (3) is contacted with the hole (6) of ending on the boss shape dividing plate (7), the end that will sluice is closed, and current enter in the piping along water outlet (8); When pumping accident, the flow that flows into water intake (1) end reduces, and the suffered impact of water of spool (3) reduces, under the effect of spring (5) power, its spool (3) is resetted, the A end face is closed feed-water end, and simultaneously, the B end face is opened, make the water in the piping, (11) enter rear valve body (16) along the water port, drain by the sluice pipe that connects, thereby have reached the water releasing and freezing prevention purpose.

Claims (3)

1, a kind of non-return drain valve is made up of front valve shell, rear valve body, spring, rubber cushion, it is characterized in that:
1) is provided with boss shape dividing plate (7) in front valve shell (2) and rear valve body (16) joint;
2) spool (3) of tape spool bar is installed in the center of dividing plate (7);
3) have two taper type stop surface of A, B on the spool (3).
2, by the described non-return drain valve of claim 1, it is characterized in that: have on the boss shape dividing plate (7) by hole face (6) and water port (11).
3, by the described non-return drain valve of claim 1, it is characterized in that: the A on the spool (3), B two sections can be the taper type or the asymmetric taper type of symmetry.
CN 91224582 1991-09-06 1991-09-06 Non-return wash-out valve Granted CN2116132U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 91224582 CN2116132U (en) 1991-09-06 1991-09-06 Non-return wash-out valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 91224582 CN2116132U (en) 1991-09-06 1991-09-06 Non-return wash-out valve

Publications (1)

Publication Number Publication Date
CN2116132U true CN2116132U (en) 1992-09-16

Family

ID=4931024

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 91224582 Granted CN2116132U (en) 1991-09-06 1991-09-06 Non-return wash-out valve

Country Status (1)

Country Link
CN (1) CN2116132U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104864131A (en) * 2015-04-18 2015-08-26 张新丰 Three-way fluid check controller
CN109073113A (en) * 2016-02-17 2018-12-21 Flow国际公司 Valve assembly at and its component
CN110440024A (en) * 2019-08-13 2019-11-12 澎阳泵业泰州有限公司 A kind of reversible back-flow preventer
CN112413205A (en) * 2020-09-16 2021-02-26 江苏上阳金属新材料有限公司 Brass valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104864131A (en) * 2015-04-18 2015-08-26 张新丰 Three-way fluid check controller
CN109073113A (en) * 2016-02-17 2018-12-21 Flow国际公司 Valve assembly at and its component
CN109073113B (en) * 2016-02-17 2021-10-29 Flow国际公司 Regulator valve assembly and components thereof
CN110440024A (en) * 2019-08-13 2019-11-12 澎阳泵业泰州有限公司 A kind of reversible back-flow preventer
CN112413205A (en) * 2020-09-16 2021-02-26 江苏上阳金属新材料有限公司 Brass valve

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PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee