Pit plug pin for fixing movable upright post of flexible upward folding door

Abstract

The invention relates to a pig plug pin for fixing a movable upright post of a flexible upward folding door. The pig plug pin comprises a pit box body (1), a top plate (2) is arranged at the top of the pit box body (1), an opening (3) is formed in the top plate (2), a plug pin (4) capable of lifting up and down is arranged below the position of the opening (3), and the upper end of the plug pin (4) is in a wedge shape. According to the pig plug pin for fixing the movable upright post of the flexible upward folding door, influences caused since the deviation is produced by the positioning of the upright post and the ground due to the fact that the upright post is affected by temperature or the door top structure is deformed can be eliminated, it is ensured that the movable upright post canbe returned under the adverse working condition, and the use of the door is not influenced.

Description

technical field [0001] The invention relates to a pit latch for fixing a movable column of a flexible upper folding door, which belongs to the technical field of automatic and electric doors. Background technique [0002] The flexible door is a kind of upward folding special door with stable performance. It is mainly used in large-area opening doors such as large warehouses, large workshops, large logistics channels, and painting workshops in the shipbuilding industry. Large-span flexible doors, because the door opening is too wide and the span is large, the overall thickness of the door is thicker than ordinary flexible doors, but after the thickness of the door increases, the stacking space increases, and noise and jamming are prone to occur during the winding process The phenomenon of disassembly and maintenance is inconvenient, and after the span of the door increases, the accumulation space and weight of the door will also increase, and the cost will increase accordingl...

AI Technical Summary

Problems solved by technology

[0004] 1. The movable column of the above-mentioned flexible door is relatively fixed to the ground through the bolt, and a pin hole matching the bolt needs to be opened on the ground. Since the overall length of the movable column is long, it will expand and contract when heated or contract above the door opening during actual use. Influenced by the external environment such as the deformation of the roof truss of the fixed column, the movable column will inevitably have a certain degree of deformation, resulting in inaccurate alignment between the pin and the pin hole after the movable column is put down, and the pin is not easy to insert into the pin hole. Manual assistance is required. very inconvenient;

[0005] 2. Due to the constraints of the structural strength and cost of the movable column, in actual production, the pin is usually set in the form of a fixed pin, and the pin is exposed at the lower end of the movable column. A long groove is set up along the lowering direction of the movable column. On the one hand, the long groove will cause the ground to be uneven, which is neither beautiful nor safe, and will also affect the sealing performance of the gate after it is closed; During use, it needs to be covered by a cover to facilitate the passage of vehicles, personnel, aircraft, etc.

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