CN2869519Y

CN2869519Y - Self-discharge anti-freeze draw off valve

Info

Publication number: CN2869519Y
Application number: CN 200520122512
Authority: CN
Inventors: 蔡永生
Original assignee: 吕丽清
Priority date: 2005-09-18
Filing date: 2005-09-18
Publication date: 2007-02-14
Anticipated expiration: 2015-09-18

Abstract

The utility model discloses a self discharge non-freezing drainage valve, which comprises handwheel, valve body, pipe plug, waterspout, discharge outlet, long tube of valve body, the special point is the valve body has shower head, the header has stainless steel ball, O type rubber band, retracting spring, the end part has adjusting screw with hole, after using the drain valve, the residual water in valve can automatically drained through shower header, thus the shower header cannot be frozen in winter. The utility model with simple structure, convenient application, low cost of construction, safety, reliable and best frozen prevention, suitable for the cold district in the north of our country, said as skiing field, fire fighting, construction site, park and operational field with water in winter.

Description

The self-releasing type non-freezing drainage valve

One, technical field:

The utility model relates to a kind of non-freezing drainage valve, is specifically related to the drain valve that a kind of automatic draining prevents freezing water pipe.

Two, background technique:

At vast north cold area, winter, outside air temperature was everlasting below 0 ℃, and the tap water drain valve of outdoor use also claims water tap, can water be arranged because of the inside, freezing and expansion and freezing water pipe influences normal water supply.In the prior art, the method for useful thermal insulating material parcel is antifreeze, but trouble, the time have bad sealing or weather to cross the freezing water valve of cold meeting; Also having a kind of method is the deep under ground of drain valve assembly on trench or side, heating installation road, opens and use extremely inconvenience; Also cover a closet, drain valve is loaded onto in the inside, and is furnished with heater unit, but the cost height is also inconvenient.

Three, summary of the invention:

The purpose of this utility model is in order to overcome the deficiency of prior art, a kind of simple in structure, easy to use, cheap, safe and reliable self-releasing type non-freezing drainage valve to be provided.

In order to achieve the above object, the technical solution adopted in the utility model is: the self-releasing type non-freezing drainage valve, comprise handwheel, valve body, plug, water outlet, discharge opening, the valve body long tube, valve rod silk head, parts such as screw, it is characterized in that the other device of the same horizontal position of plug has the fluffy head of sluicing, the interior device of fluffy head that sluices has steel ball, O type circle and Returnning spring, steel ball is a Stainless Steel Ball, O type circle is a rubber ring, one end of Returnning spring withstands steel ball, make the self-releasing type non-freezing drainage valve when water not, steel ball leaves O type circle, and the surplus water in the valve body long tube is released by the gap of steel ball and O type circle, through the discharge opening passage in the Returnning spring and the fluffy head that sluices water is released outside the valve.In order to make Returnning spring easy to adjust, can set up adjusting screw in the end of the fluffy head that sluices, to regulate the pressure of Returnning spring, can disposablely mix up steel ball, make steel ball be in the optimum position, the spilled water hole of tubulose is arranged in the adjusting screw.

Valve rod silk head on the valve rod and the screw device that is arranged on valve body lower portion the inside at plug with upper/lower positions, to stablize the valve rod in the valve body long tube.The length of valve body long tube is determined that by the frozen soil layer degree of depth of territory of use China northeast and northwest can reach more than the 1-1.2 rice, and the middle part can be in 1 meter.

Its principle: rotation hand wheel rises valve rod silk head in screw, plug is opened, and under the pressure of water in pipe network, flows out from water outlet through the valve body long tube, simultaneously steel ball is produced pressure, and steel ball and the trap of O type are closed; When water not, rotation hand wheel moves down valve rod silk head, and plug blocks the pore in the valve body, and hydraulic pressure is reduced to self hydraulic pressure in the valve body long tube, and steel ball pushes away O type circle under the effect of Returnning spring, and the water of valve body long tube releases from discharge opening.

The utility model self-releasing type non-freezing drainage valve adopts the good effect of technique scheme to be: simple in structure, easy to operate, with low cost, can in time release the surplus water in the valve body upper body long tube, good freezing protection effect.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Four, description of drawings:

Fig. 1 lets out an embodiment structural representation of antifreeze outlet valve certainly for the utility model.

Five, embodiment:

Embodiment: Fig. 1 is the utility model from an embodiment structural representation letting out antifreeze outlet valve, comprises handwheel 1, valve body 2, plug 3, water outlet 10, discharge opening 9, screw 13, valve rod silk 12, valve body long tube 11; Feature is: have to sluice fluffy 7 on the same horizontal position of plug 3, fluffy 7 interior steel ball 4, O type circle 5, the Returnning spring 6 of installing sluices; Device is at the pressure of 6 pairs of steel balls 4 of adjusting screw 8 can regulate Returnning springs of fluffy 7 front end that sluice, and can mix up fixingly to areal, and the through hole in the adjusting screw 8 is a discharge opening 9.When needing water, turn handwheel 1, valve rod silk 12 moves under the effect of screw 13, moves on the plug 3 and opens, and water enters valve body long tube 11, flows out from water outlet 10, and the pressure of water stops water to flow out from discharge opening the passage choke-out of steel ball 4 with O type circle 5.When water not, reverse turn handwheel 1, plug 3 moves down, water hole in the middle of the valve body 2 is blocked, and the hydraulic pressure from the pipe network in the valve body long tube 11 loses, and steel ball 4 leaves O type circle 5 under the effect of Returnning spring 6, plug is more than 3, the discharge opening 9 of water in valve body long tube 11 in the adjusting screw 8 of fluffy 7 front end that sluice flows out, and prevents that drain valve from being destroyed by Water freezes into ice, realizes from letting out antifreeze purpose.

Above-mentioned embodiment of the present utility model, simple in structure, easy to operate, with low cost, can in time release the surplus water in the freezing valve body long tube 11 of possibility, good freezing protection effect.

Claims

1, self-releasing type non-freezing drainage valve, comprise parts such as handwheel, valve body, plug, water outlet, discharge opening, valve body long tube, valve rod silk head, screw, it is characterized in that: have to sluice fluffy 7 on the same horizontal position of plug 3, fluffy the 7 interior device that sluice has steel ball 4, O type circle 5, Returnning spring 6.

2, self-releasing type non-freezing drainage valve according to claim 1 is characterized in that: at fluffy 7 front end that sluice adjusting screw 8 is housed, the discharge opening 9 of tubulose is arranged in the adjusting screw 8.