Foldable handle assembly, and valve and middle-sized bulk container provided with same

Abstract

Disclosed are a retractable handle assembly, and a valve and a mid-sized bulk container using the handle assembly. A handle (4) in the handle assembly is connected on a valve stem and is able to rotate around a central axis of rotation on the valve stem. When the valve needs to be opened, the handle (4) rotates around the central axis of rotation into a deployed state, in order to open and close the valve; and when the valve is welded to a liner bag of a mid-sized bulk container or mounted to a mid-sized bulk container, the handle (4) rotates around the central axis of rotation into a retracted state, in order to reduce the space occupied by the valve. Furthermore, an erroneous opening prevention boss (411) is also provided on the handle (4) and matches an erroneous opening prevention groove (8) on a valve cap. When the handle is in the retracted state, reduced space is occupied, thereby not affecting the liner bag of the mid-sized bulk container to which the valve is welded. After retraction, the handle is also not easily damaged.

Description

technical field [0001] The present invention relates to intermediate bulk containers, and more particularly to handle assemblies for valves in intermediate bulk containers. Background technique [0002] Intermediate bulk container (IBC) is a type of packaging turnover container widely used in the food, biochemical, pharmaceutical, chemical and other industries internationally. Since the IBC container can be reused many times, it has obvious advantages in filling, storage and transportation, and compared with the round drum, the IBC container can save 35% of the storage space, and the size meets the ISO standard. It is not only suitable for aseptic canning, but also has a compact box body, which is convenient for safe and efficient storage of large quantities, so it is widely used in the transportation, packaging and storage of materials in the form of liquids, granules and flakes. [0003] There are three types of existing intermediate bulk containers: 820L, 1000L, and 1250...

AI Technical Summary

Problems solved by technology

[0004] The existing valves used for medium-sized bulk storage containers are generally welded with the liner bag. However, due to the limitation of the welding position of the valve, the valve handle will interfere with the welding electrode, so the handle is generally made detachable. Welding valves When installing the valve, the handle must be removed. When the valve is installed in the medium-sized bulk container, the handle is also disassembled due to the space limitation of the valve opening. When the valve needs to be opened, the handle must be installed and then the valve will be opened and closed. In this way, there is a risk that the handle will be lost and the valve cannot be opened and closed. Furthermore, the assembly of the handle is cumbersome, the efficiency is low, and it takes up manpower.

Or, the handle cannot be disassembled and cannot be folded after being installed on the valve, resulting in a larger space for the valve, a larger packaging volume for the valve, and the valve handle is easily damaged

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