An anti-theft and anti-freeze valve

Abstract

The invention discloses an antitheft and anti-freezing valve. The antitheft and anti-freezing valve comprises a valve body, a valve stem, a bonnet and a separable valve handle. The antitheft and anti-freezing valve further comprises an anti-freezing heating system; the internal part of the upper end of the valve stem is hollow, the upper end surface of the valve stem and the upper end surface of the bonnet are at the same level, the upper end surface of the bonnet is provided with a cylindrical hole with an opening in the side surface of the bottom end, a steel ball is arranged in the cylindrical hole, the valve stem is provided with a ring groove at a position corresponding to the opening in the bottom end of the cylindrical hole, and a first permanent magnet is arranged in the ring groove along the axial direction of the valve stem; a second permanent magnet with magnetism which is larger than that of the first permanent magnet is arranged at a position corresponding to the position of the cylindrical hole in the valve handle; the anti-freezing heating system comprises a heating control device and a heating device which covers the external surface of the valve body, the heating control device comprises a power supply and an automatic heating controller, and the power supply, the automatic heating controller and the heating device are sequentially and electrically connected. The antitheft and anti-freezing valve has the advantages that the structure is reasonable, simple and practical and the antitheft and anti-freezing effect is achieved.

Description

technical field [0001] The invention relates to pipeline connection equipment, in particular to an anti-theft and anti-freeze valve. Background technique [0002] Valves located outdoors are often opened by mistake or maliciously opened and closed, resulting in the loss of media such as tap water in the pipeline and greatly affecting people's lives. The anti-theft measure adopted in the prior art is to use a special wrench to open the valve stem, but this method is easy to be cracked. [0003] When the temperature is below zero in winter, water pipes often freeze and water cannot flow out. Outdoor valves in parks and residential buildings can easily cause valves and water pipes to freeze or burst, seriously affecting residents' use of domestic water. [0004] At present, there are mainly the following types of antifreeze measures for tap water pipe valves: 1) igniting combustibles such as straw to defrost near the valve, this method has open flames and has potential safety ...

AI Technical Summary

Problems solved by technology

[0002] Valves located outdoors are often opened by mistake or maliciously opened and closed, resulting in the loss of media such as tap water in the pipeline and greatly affecting people's lives

The anti-theft measure adopted in the prior art is to use a special wrench to open the valve stem, but this method is easy to be cracked

[0003] When the temperature is below zero in winter, the water pipes often freeze and the water cannot flow out. Outdoor valves in parks and residential buildings can easily cause valves and water pipes to freeze, freeze or burst, seriously affecting residents’ use of domestic water.

[0004] At present, there are mainly the following types of antifreeze measures for tap water pipe valves: 1) igniting combustibles such as straw to defrost near the valve, this method has open flames and has potential safety hazards; 2) There is a storage room under the permafrost layer, and the valve and There is a hose connected between the tap water pipes. When there is no need to take water, put the valve and the faucet into the storage room, and take it out when water is needed, which is very troublesome; 3) Use the inflatable power device to inflate the pipe and drain the valve The internal water, or when the water is cut off, due to the decrease of the internal pressure of the pipeline, the external air is sent into the pipeline through the device, so that the water level is lowered below the permafrost layer. This method is also very inconvenient to use; Flow flow, which is less effective in cooler regions

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