All-glass vacuum heat collecting tube with anti-bump tail end

Abstract

The invention discloses an all-glass vacuum heat collecting tube with an anti-bump tail end, which comprises an outer glass tube and an outer tube tail end formed by the vacuuming operation of the outer glass tube, the external of the outer tube tail end is sleeved with an elastic protective cap, and the shape of the inner bore of the elastic protective cap is identical with the shape of the outer tube tail end. The elastic protective cap with the identical shape of the outer tube tail end is further arranged on the outer tube tail end of the present all-glass vacuum heat collecting tube, so as to protect the outer tube tail end and prevent the outer tube tail end from being bumped and damaged. At the same time, the outer diameter size of the elastic protective cap is gradually reduced forwards along a straight tube tail end of the outer glass tube so that the elastic protective cap can be preferably adhered on the tail end of the outer glass tube without sliding downward, and the protective performance of the elastic protective cap is further increased for the outer tube tail end.

Description

technical field [0001] The invention relates to main components of a solar water heater, in particular to an all-glass vacuum heat collecting tube with an anti-collision tail end. Background technique [0002] When the existing solar water heater is installed, the all-glass vacuum tube is generally picked up by hand, one end is inserted into the connection hole of the water tank, and the other end is put into the support connecting box rear support. Since the all-glass vacuum tube will form a pointed outer tube tail at the end of the outer glass tube after the vacuum suction operation, because there is no protective measure, when the all-glass vacuum tube is taken, the pointed outer tube tail will be very It is easy to bump into, causing the all-glass vacuum tube to leak and lose its use value. Contents of the invention [0003] In view of the above-mentioned defects, the present invention provides an all-glass vacuum heat collecting tube which is easy to operate, safe an...

AI Technical Summary

Problems solved by technology

Since the all-glass vacuum tube will form a pointed outer tube tail at the end of the outer glass tube after the vacuum suction operation, because there is no protective measure, when the all-glass vacuum tube is taken, the pointed outer tube tail will be very It is easy to bump into, causing the all-glass vacuum tube to leak and lose its use value

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