CN202402701U

CN202402701U - Anti-freezing valve

Info

Publication number: CN202402701U
Application number: CN2011205080682U
Authority: CN
Inventors: 郭立秋
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-08
Filing date: 2011-12-08
Publication date: 2012-08-29
Anticipated expiration: 2021-12-08

Abstract

The utility model relates to pipeline connecting equipment, in particular to an anti-freezing valve, which includes a valve body, a valve rod arranged in the valve body, a seal end cover at the end part of the valve body, and a valve handle, wherein the seal end cover consists of an upper seal end cover and a lower seal end cover; a water inlet and a water outlet are arranged at two ends at the bottom of the valve body respectively; a drain opening is arranged in a position between the water inlet of the valve inlet and the upper seal end cover; the valve rod consists of an upper valve rod and a lower valve rod; the lower valve rod is provided with a first seal ring, and the lower valve rod is provided with a second seal ring; a spring is arranged between the second seal ring and the lower seal end cover; the other end of the upper valve rod penetrates the upper seal end cover and is connected with the valve handle; and further, after being connected with the first seal ring and the second seal ring, the lower valve rod is matched with an inner cavity of the valve body in shape. The valve is connected with a tap water pipeline embedded underground, so that when water supply is stopped, tap water automatically flows back to the part with low water level and under the frozen earth layer, and the phenomena that water accumulates and further is frozen in the water pipeline over the ground can be avoided; therefore, the purpose of freezing resistance is realized.

Description

A kind of antifreezing valve

Technical field:

The utility model relates to the pipeline connection device, more specifically relates to a kind of antifreezing valve.

Background technique:

The water outlet of water supply pipe exposes generally speaking more than ground, arrives when winter, and the easy frozen of pipeline of water outlet part causes the inconvenience in the use.

At present; The valve of water supply pipe mainly contains following several types; First kind is the automatic deflation type: mainly be applicable to the non-tower water supply system, the pressure because of pipeline when stopping to supply water reduces ambient air through certain device entering pipeline, and water level is reduced to below the frozen soil layer; Reaching antifreeze purpose, this series products often because of water droplet, water smoke in the means of deflation pipeline freeze lost efficacy; Second kind is gas type: in pipeline, inflate the purpose that reaches draining with power plant, but cost is high and use inconvenient; The third is a dripping water type: tap water flows with small flow, wastes self-evident; The 4th kind is anti-freeze type: make outdoor valve body with high tenacity or elastic material, volumetric expansion is broken when making it not freeze because of running water pipe, but can't solve pipeline and the problem of valve body because of freezing to continue to use, and urgent need will further be improved.

Summary of the invention:

The purpose of the utility model provides a kind of antifreezing valve; This valve be embedded in underground water supply pipe and be connected, when stopping to supply water, tap water is back to the low frozen soil layer of water level automatically with the bottom; Avoid in the water pipe of overground part ponding and freeze, realize antifreeze purpose.

For realizing above-mentioned purpose, the utility model adopts following technological scheme:

A kind of antifreezing valve that the utility model provides comprises valve body, is arranged on the valve rod in the valve body, the end cover and the valve handle of valve end, and said end cover is divided into end cover and lower seal end cap, is separately positioned on the top and the bottom of valve body; The two ends, bottom of said valve body are respectively equipped with a water inlet and water outlet, and said valve body water inlet also has a discharge opening to position between the last end cover; Said valve rod is divided into the upper valve rod and the lower valve rod of concentric, and said lower valve rod top is set with first seal ring, and said lower valve rod middle part is set with second seal ring, is provided with spring between said second seal ring and the lower seal end cap; Said upper valve rod one end and lower valve rod one end in contact, the upper valve rod the other end are passed end cover and are connected with the valve handle, and the shape that the shape of said body cavity is connected with lower valve rod behind first seal ring and second seal ring matches.

In a kind of antifreezing valve technological scheme that the utility model provides, said upper valve rod one end is fixedly connected with lower valve rod one end.

In another preferred a kind of antifreezing valve technological scheme that the utility model provides, said upward end cover and lower seal end cap all are to be separately positioned on valve body top and bottom through being threaded.

In the preferred a kind of antifreezing valve technological scheme again that the utility model provides, be threaded between said upper valve rod and the last end cover.

In another preferred a kind of antifreezing valve technological scheme that the utility model provides, said first seal ring and second seal ring all are to be fixed on the lower valve rod through nut.

In another preferred a kind of antifreezing valve technological scheme that the utility model provides, be provided with the valve extension bar between said upper valve rod and the valve handle.

Because the beneficial effect that has adopted technique scheme, the utility model to obtain is:

The utility model is simple in structure, and is easy to use, do not leak, and cost easy to manufacture is low, can avoid irresistible natural disasteies such as water pipe from freezing crack, and then practice thrift the water resource waste of breaking and causing because of water pipe.

Description of drawings

Fig. 1 is the whole sectional view of a kind of antifreezing valve;

Fig. 2 is a kind of antifreezing valve upper valve rod and lower valve rod combination schematic representation;

Fig. 3 is an end cover schematic representation on a kind of antifreezing valve;

Fig. 4 is a kind of antifreezing valve lower seal end cap schematic representation;

Fig. 5 is a kind of antifreezing valve user mode schematic representation;

Fig. 6 is the utility model upper valve rod whole sectional view when being fixedly connected with lower valve rod;

Wherein, 1-valve body, 2-upper valve rod, 3-lower valve rod, the last end cover of 4-, 5-lower seal end cap, 6-first seal ring, 7-second seal ring, 8-spring, 9-valve handle.

Embodiment

Below in conjunction with embodiment model utility is done further to specify.

Embodiment 1:

Shown in Fig. 1-5; A kind of antifreezing valve of this routine model utility; Comprise valve body 1, be arranged on valve rod in the valve body 1, the end cover of valve end and valve be 9; Said end cover is divided into end cover 4 and lower seal end cap 5, and the said end cover 4 of going up all is to be separately positioned on valve body 1 top and bottom through being threaded with lower seal end cap 5; The two ends, bottom of said valve body 1 are respectively equipped with a water inlet and water outlet, and said valve body 1 water inlet also has a discharge opening to position between the last end cover 4; Said valve rod is divided into the upper valve rod 1 and lower valve rod 3 of concentric; Said lower valve rod 3 tops are set with first seal ring 6 and fix through nut; Said lower valve rod 3 middle parts are set with second seal ring 7 and fix through nut, are provided with spring 8 between said second seal ring 7 and the lower seal end cap 5; Said upper valve rod 2 one ends and lower valve rod 3 one end in contact; Upper valve rod 2 the other ends pass end cover 4 and are connected 9 with valve; Said upper valve rod 2 and valve are provided with the valve extension bar between 9, be threaded between said upper valve rod 2 and the last end cover 4, and the shape that the shape of said valve body 1 inner chamber is connected with lower valve rod 3 behind first seal ring 6 and second seal ring 7 matches; Also be provided with seal ring with first seal ring 6 and second seal ring, 7 sealing part on the said valve body 1, strengthen seal.

The job step of this routine model utility is following:

The first step: first antifreezing valve with the utility model is arranged on below the frost retarding layer and with the water lines that will control and links to each other.

Second step: when normally making water, changeover valve makes its decline to 9 and promotes coupled upper valve rod 2; The lower valve rod 3 contacted with it of upper valve rod 2 promotions simultaneously moves down, second seal ring 7 and valve body 1 blow-by that is provided with on the lower valve rod 3 this moment, and spring 8 is extruded; And first seal ring 6 and valve body 1 sealing; Cause current to be entered from valve body 1 left side water inlet, come out at the mouth of a river in place, the right, normal circulation.

The 3rd step: when water supply stopped, changeover valve was 9 that its rising and drive upper valve rod 2 move; The spring that is extruded 8 that before is provided with on the lower valve rod 3 promotes lower valve rod 3 and moves up, at this moment owing to the effect of elastic force; First seal ring 6 and valve body 1 blow-by on the lower valve rod 3, and second seal ring 7 keeps sealing with valve body 1, makes valve body 1 left side water intake seal; Discharge opening is communicated with water outlet; Current in the pipeline of frost retarding layer top just reflux like this, discharge from discharge opening, reach antifreeze purpose.

Embodiment 2:

As shown in Figure 6; A kind of antifreezing valve of this routine model utility; Basic identical among its basic structure and the embodiment 1; Difference is that upper valve rod 2 one ends are fixedly connected with lower valve rod 3 one ends, designs as a wholely, and also can between second seal ring 7 and lower seal end cap 5, cancel the setting of spring 8;

The job step of this routine model utility is following:

Second step: when normally making water; Changeover valve makes its decline to 9 and promotes coupled upper valve rod 2 to consist of the one valve rod with lower valve rod 3, this moment second seal ring 7 and valve body 1 blow-by; And first seal ring 6 and valve body 1 sealing; Cause current to be entered from valve body 1 left side water inlet, come out at the mouth of a river in place, the right, normal circulation.

The 3rd step: when water supply stopped, changeover valve was 9, was its rising and drove coupled upper valve rod 2 and lower valve rod 3 consists of the one valve rod and moves up; First seal ring 6 and valve body 1 blow-by at this moment, and second seal ring 7 keeps sealing with valve body 1, makes valve body 1 left side water intake seal; Discharge opening is communicated with water outlet; Current in the pipeline of frost retarding layer top just reflux like this, discharge from discharge opening, reach antifreeze purpose.

Should be noted that at last: above embodiment only in order to the explanation the utility model technological scheme but not to its restriction; Although the utility model is specified with reference to the foregoing description; Under the those of ordinary skill in field be to be understood that: still can make amendment or be equal to replacement the embodiment of the utility model; And do not break away from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of this claim scope.

Claims

1. antifreezing valve; Comprise valve body (1), be arranged on the valve rod in the valve body (1), the end cover and the valve handle (9) of valve end; It is characterized in that: said end cover is divided into end cover (4) and lower seal end cap (5), is separately positioned on the top and the bottom of valve body (1); The two ends, bottom of said valve body (1) are respectively equipped with a water inlet and water outlet, and said valve body (1) water inlet also has a discharge opening to position between the last end cover (4); Said valve rod is divided into the upper valve rod (1) and the lower valve rod (3) of concentric; Said lower valve rod (3) top is set with first seal ring (6); Said lower valve rod (3) middle part is set with second seal ring (7), is provided with spring (8) between said second seal ring (7) and the lower seal end cap (5); Said upper valve rod (2) one ends and lower valve rod (3) one end in contact; Upper valve rod (2) the other end passes end cover (4) and is connected (9) with valve, and the shape that the shape of said valve body (1) inner chamber is connected with lower valve rod (3) behind first seal ring (6) and second seal ring (7) matches.

2. a kind of antifreezing valve as claimed in claim 1 is characterized in that: said upper valve rod (2) one ends are fixedly connected with lower valve rod (3) one ends.

3. like the arbitrary described a kind of antifreezing valve of claim 1-2, it is characterized in that: said upward end cover (4) and lower seal end cap (5) all are to be separately positioned on valve body (1) top and bottom through being threaded.

4. a kind of antifreezing valve as claimed in claim 3 is characterized in that: be threaded between said upper valve rod (2) and the last end cover (4).

5. a kind of antifreezing valve as claimed in claim 3 is characterized in that: said first seal ring (6) and second seal ring (7) all are to be fixed on the lower valve rod (3) through nut.

6. a kind of antifreezing valve as claimed in claim 3 is characterized in that: said upper valve rod (2) and valve are being provided with the valve extension bar between (9).