Communicated heat-locking device

Abstract

The invention discloses a communicated heat-locking device. The top of an internal valve box body (1) is provided with an upper air inlet port (3), the bottom of the internal valve box body (1) is provided with an air inlet cap (2) with a lower air inlet pore (4), a piston is formed by arranging a piston cap (7) on a piston boit (8) and is arranged in the internal valve box body (1) with the support from a spring (5), the piston cap (7) seals the upper air inlet port (3), and the piston boit (8) extends out of the lower air inlet cap (2); the bottom of an external valve box body (9) is provided with a lower exhaust hole (11), the top of the external valve box body (9) is provided with an upper exhaust ring (10) with an upper exhaust hole (12), the internal valve box body (1) is arranged in the external valve box body (9) with the support from a spring (6), and the piston boit (8) extends out of the lower exhaust hole (11) of the external valve box body (9). The heat-locking device of the invention has the advantages of simple structure, combination of air exhaust and air admittance, flexible heat-locking mode, reduced heat lost, improved heat efficiency and excellent heat insulation effect.

Description

technical field

[0001] The invention relates to accessories of solar water heaters, in particular to intercommunicating heat locks installed on vent holes of solar water tanks. Background technique

[0002] Household solar water heaters are widely used in people's daily life because of their convenience, benefits, and environmental protection. The water tank of the solar water heater is installed and used outdoors, and the heat preservation requirements for the water tank are getting higher and higher with the popularization of the solar water heater. From the perspective of heat preservation effect, the heat dissipation is mainly through the heat conduction and heat dissipation of the vent holes and pipes. The vent holes are the first source of heat dissipation, and 80% of the heat is emitted from the vent holes. The natural heat is upward. In order to reduce heat loss, the ideal vent is forced to be changed to the bottom. The effect of heat preservation is much better, bu...

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