Fixing and locking device for inner container of solar water tank

Abstract

The invention discloses a fixing and locking device for an inner container of a solar water tank. The fixing and locking device comprises a mounting seat, an inner container fixing head, a transmission rod, an expansion ring and a movable handle, wherein the mounting seat is a hollow cylinder with an opening in one end; the shape and the size of the mounting seat are matched with those of a mounting opening of a heat collecting tube of the water tank; the bottom of the mounting seat transversely extends outwards to form a lip; the expansion ring is in the shape of a hollow cylinder, is arranged in the mounting seat, and is higher than the mounting seat; one end of the transmission rod is connected with the inner container fixing head, and the other end of the transmission rod penetrates through the expansion ring and the center at the bottom of the mounting seat and is movably connected with the movable handle through a rotating shaft; the inner container fixing head is in the shape of a circular truncated cone; the sectional area of the inner container fixing head is gradually reduced downwards along the axial direction of the transmission rod; the lower end surface of the inner container fixing head can be embedded in an upper end opening of the expansion ring in a matched manner; and a spring is arranged on the transmission rod arranged between the inner container fixing head and the mounting seat. The fixing and locking device for the inner container of the solar water tank solves the problems that the conventional solar water tank is low in yield in a foaming process, and polyurethane foams overflow from the mounting opening of the heat collecting tube of the water tank, so that materials are wasted.

Description

technical field [0001] The invention relates to the technical field of traffic equipment, in particular to a fixing and locking device for an inner tank of a solar water tank. Background technique [0002] As an energy-saving green environmental protection product, solar water heaters have been industrialized in the 1990s, and their production and sales have grown rapidly in just a decade. The products have made great achievements in improving the living environment, saving social energy, and reducing environmental pollution. great contribution. As a container for storing hot water, the water tank of the solar water heater is one of the indispensable equipment for the solar water heater. During the production process of the water tank of the solar water heater, it is usually necessary to set an insulation layer between the water tank shell and the inner tank. Rigid polyurethane foam Because of its simple molding process and low thermal conductivity, it has become the first ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a fixing and locking device for the inner liner of a solar water tank. Inconsistency will cause the liner of the water tank to tilt and shift, and the inner liner and the water tank will not be concentric, resulting in low yields. In addition, it is limited to solve the problem of polyurethane foam overflowing from the installation port of the heat collecting pipe of the water tank during the polyurethane foaming process of the water tank, resulting in Material waste and cost increase

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