Device for puncturing greenhouse film

Abstract

The invention provides a device for piercing a greenhouse film, which belongs to the field of agricultural equipment. The device for piercing the greenhouse film includes a straight tube made of magnetically conductive material and a rubber ring that is pressed against and fixed on the top surface of the straight tube. The upper end surface of the rubber ring is a concave spherical surface; the straight tube is vertically provided with Straight rod, the upper end of the straight rod is in the shape of a solid cone, an annular seat is formed on the inner wall of the straight tube, and an annular shoulder is formed on the outer wall of the straight rod. , when the straight rod slides down, the magnetic block can be pressed and adsorbed on the annular seat; the side wall of the straight pipe is provided with a drainage port, and the drainage port is located above the annular shoulder, and an annular body is formed on the outer wall of the straight pipe, and the cross-section of the annular body is L-shaped, an annular water collecting trough is formed between the annular body and the straight pipe, the drain port is connected with the water collecting tank, the bottom wall of the water collecting tank has a water outlet, the outer side of the straight pipe is also fixedly connected with a drain pipe, and the drain pipe is connected with the water outlet. The present invention prevents film breakage.

Description

technical field [0001] The invention belongs to the field of agricultural equipment, and relates to a film piercing device, in particular to a device for piercing a greenhouse film. Background technique [0002] With the production of high molecular polymers - polyvinyl chloride and polyethylene, plastic films are widely used in agriculture. In the early 1950s, Japan and European and American countries successfully applied greenhouse film to cover the hotbed, and then covered the shed and greenhouse with good results. my country introduced polyvinyl chloride agricultural film in the autumn of 1955, which was first used in Beijing to cover vegetables in small sheds, and achieved the effect of early maturity and increased yield. The greenhouse was originally a special equipment for vegetable production. With the development of production, the application of the greenhouse has become more and more extensive. [0003] When encountering heavy rain, the plastic film will be part...

AI Technical Summary

Problems solved by technology

However, in actual use, due to improper operation, it is very easy to cause the hole to open and the water flow to be too fast, causing the water bag to burst, which not only increases the difficulty of later repairs, but also easily damages the crops due to the downward impact of large water flow

Images