A circular plastic container locking structure

Abstract

The invention discloses a locking structure for a round plastic container. The locking structure for the round plastic container comprises a barrel body and a barrel cover, wherein a plurality of barrel cover thread strips are arranged on the inner side of the barrel cover; a rack is arranged on one surface, connected with the barrel body, of the barrel cover; a plurality of barrel body thread strips are arranged on the periphery of the outer side of the opening of the barrel body; the barrel cover thread strips and the barrel body thread strips are matched with each other; a set of gears are arranged on the edge of the upper opening of the barrel body; a fixed gear central shaft is arranged in the gears, and is the gears are connected with a gear handle; when the barrel body is motionless, the gear handle drives the gears to rotate anticlockwise, and then the rack on the barrel cover and the whole barrel cover are driven by the rotating function of the gears to move clockwise; with less power, the lever effect of the gear handle on the gears and the effect of thread inclined plane moving are adopted to produce tens times of locking force of the barrel body and the barrel cover, so that the barrel cover and the barrel body are locked; when the gear handle swings clockwise, and the barrel cover moves anticlockwise, the barrel cover is then loosened; the way of locking and unlocking the barrel cover and the barrel body is very convenient.

Description

technical field

[0001] The invention relates to a locking structure, in particular to a circular plastic container locking structure. Background technique

[0002] In order to ensure that the lid and the barrel body are locked tightly and have good sealing performance, all plastic barrels with a diameter ≥ 200mm on the market generally adopt a hoop-type structure. The main body of the hoop type structure is a hoop, and its manufacturing materials include metal and engineering plastics.

[0003] There must be a layer of coating on the metal surface of the metal hoop to make it have anti-corrosion function, but during the storage and transportation process, the coating is easy to fall off due to collision and friction, causing the metal surface to be corroded and affecting the appearance of the product packaging; Moreover, the production cost of metal hoops is relatively high. There are more than a dozen parts and dozens of processes to make a metal hoop. The production effic...

Images