CN2527592Y

CN2527592Y - Automatic anti-freezing device for pipeline

Info

Publication number: CN2527592Y
Application number: CN 02221859
Authority: CN
Inventors: 王增强
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-12
Filing date: 2002-03-12
Publication date: 2002-12-25
Anticipated expiration: 2012-03-12

Abstract

The utility model provides a pipeline automatic anti-freezing device, which is characterized in that the device is composed of a shell connected with the pipeline and having a discharge port arranged thereon, a sealing element disposed in the shell and a spring. The utility model can connect with the end part of the pipeline, and the expansive force produced when the ice appears in the pipeline can push the spring to move, thus opening the discharge port automatically and timely discharging the residual water and ice blocks in the pipe, the spring can also automatically close the discharge port when the air temperature increases, therefore, the utility model can automatically and effectively prevent the frost crack of the pipeline, which is the ideal pipeline automatic anti-freezing device with simple structure, safety and reliability.

Description

Pipeline automatic freezing-protective device

The utility model relates to a kind of defroster, especially a kind of pipe defroster that can prevent frost crack pipe.

Be widely used in water pipe in industrial and agricultural production and the people's lives, water supplying apparatus, solar water heater etc. at present, adopt metal steel pipe or copper aluminum composite pipes to supply water mostly, because the coefficient of expansion of these materials is limited, very easily at night particularly in winter of cold, because of the expansion of the water freezing in pipeline bursting by freezing tube wall, greatly reduce their application life.Especially more outstanding at southern area, for this reason, people adopt various means to prevent the bursting by freezing of pipeline.As electric heater is installed in pipeline, so that water temperature effectively prevents water freezing above freezing in the holding tube.Perhaps Before Night Falls, surplus water is got rid of in will managing.But these methods or power consumption increase cost, or operate cumbersomely, even will go up roof Guan Shui.Therefore, be necessary prior art is improved.

The purpose of this utility model is to overcome the deficiency of prior art, and a kind of simple in structure, safe and reliable pipeline automatic freezing-protective device is provided.

The utility model is finished by following technical proposal: it by link to each other with pipeline its on be located at the housing of floss hole, seal and the spring be located in the housing constitute.Floss hole on the described housing is at least one, and is located at an end of housing wall, so that can discharge from this floss hole with surplus water or ice cube in the pipeline that housing links to each other.Seal in the described housing is made of seal head, sealing ring and sealing slide block, and seal head is fixed on an end that joins with pipeline in the housing, and sealing ring is located between seal head and the sealing slide block, during with the assurance operate as normal water in the pipeline is leaked outside.Described spring one end links to each other with the sealing slide block, and the other end links to each other with spring base in being fixed on housing, and spring base is fixed in the housing by locating jump ring.

The utility model compared with prior art has following advantage and effect: because the housing of this automatic freezing-protective device can link to each other with the end of pipeline, and promoting spring by the expansion force that produces during water freezing in the pipeline moves, thereby open the floss hole on it automatically, surplus water and ice cube in the timely discharge pipe, when temperature gos up, effect by spring can be closed floss hole again automatically, therefore, it can effectively prevent pipeline by bursting by freezing, and real is a kind of simple in structure, safe and reliable pipeline automatic freezing-protective device.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the A-A profile of Fig. 1.

Below in conjunction with accompanying drawing the utility model is described further, is not limited in this but hold within the utility model.

Among the figure, 1 is housing, the one end is by being spirally connected or inserting mode links to each other with pipeline 2, and it is seal head that housing wall is provided with three

floss holes

3,4, be located in the housing 1 and the pipeline connection, 5 is sealing ring, and 6 for the sealing slide block, has groove 7 on it, so that the some of sealing ring 5 embeds in the groove 7, another of sealing ring 5 partly then links to each other with

seal head

4, and 8 is spring, and the one end links to each other with sealing slide block 6, the other end links to each other with spring base 9, spring base 9 is fixed in the housing 1 by

location jump ring

10, and 11 is another sealing ring, is located at seal head 4 and pipeline 2 connecting places, be used for enhanced leaktightness, improve sealing performance.When the water freezing in the pipeline 2, the expansion force that is produced overcomes spring force and promotes to seal slide block 6 and move right, and then floss hole 3 is opened, and water and ice in the pipeline 2 is flowed out from floss hole 3, thereby lower the pipe internal pressure, effectively prevents frost crack pipe; When temperature went up, when perhaps managing internal pressure less than spring force, sealing slide block 6 was moved to the left under the effect of spring 8, floss hole 3 is closed, thereby play the effect of automatic freezing-protective.

Claims

1, a kind of pipeline automatic freezing-protective device is characterized in that it by the housing which is provided with floss hole that links to each other with pipeline, and seal and the spring be located in the housing constitute.

2, defroster according to claim 1 is characterized in that the floss hole on the described housing is at least one, and is located at an end of housing wall.

3, defroster according to claim 1 is characterized in that the seal in the described housing is made of seal head, sealing ring and sealing slide block, and seal head is fixed on an end that joins with pipeline in the housing, and sealing ring is located between seal head and the sealing slide block.

4, defroster according to claim 1 is characterized in that described spring one end links to each other with the sealing slide block, and the other end links to each other with spring base in being fixed on housing, and spring base is fixed in the housing by locating jump ring.