3results about How to "Improve sealing performance" patented technology

The utility model discloses a water supply and drainage anti-freezing device for municipal engineering, and relates to the technical field of water supply and drainage anti-freezing. The water supply and drainage pipe assembly comprises a first water supply and drainage pipe and a second water supply and drainage pipe, and the two ends of the first water supply and drainage pipe and the two ends of the second water supply and drainage pipe are each provided with a flange ring. The surface of the first water supply and drainage pipe and the surface of the second water supply and drainage pipe can be fully wrapped through the heat preservation cotton, so that a good heat preservation effect can be achieved, then the outer side face of the heat preservation cotton can be evenly wrapped through the limiting component, and the situation that adhesion is not tight enough after viscosity is reduced, and the service life of the heat preservation cotton is prolonged can be avoided. And meanwhile, the arranged sealing limiting shell can also achieve a good sealing and heat preservation effect on the joint of the first water supply and drainage pipe and the second water supply and drainage pipe, and therefore the anti-freezing effect of the anti-freezing device can be further improved.

The utility model discloses a cover plate of a cylindrical power battery, which belongs to the field of power batteries and comprises a pole, a collector plate, lower plastic, a light aluminum sheet, a sealing ring, a pressing plate and upper plastic. The collector plate is arranged on the pole, and the lower plastic is assembled on the pole; the sealing ring is arranged on the pole, and the pole is provided with a light aluminum sheet; upper plastic cement is arranged on the pole; pressing plates are arranged at the top ends of the poles; the upper plastic is arranged between the pressing plate and the light aluminum sheet; the lower plastic is arranged on the periphery of the sealing ring; and the light aluminum sheet is arranged above the lower plastic and the sealing ring. According to the utility model, sealing is directly formed among the sealing gasket, the light aluminum and the pole, so that the sealing performance of a product is greatly improved, and the safety performance of the product is improved.

A kind of low air leakage rate access door for rotary dehumidifier cabinet, comprising: access door frame plate, access door body and sealing system, access door frame plate is fixed at air conditioner cabinet opening, access door body is connected with access door frame plate, sealing system is located on access door body. Wherein, access door frame plate includes: outer frame outer metal plate, outer frame inner metal plate, outer frame thermal insulation layer, outer frame plastic strip, outer frame pad iron and strong hook. Compared with the prior art, the access door adopts three sealing structures, which significantly reduces the air leakage rate. The outer metal plate of the door core plate is designed in an arc shape to avoid door jamming. The wave-shaped dispensing enhances the bonding force of the sealing glue. The external compression type door lock effectively isolates the cold bridge. The overall sealing and thermal insulation performance is improved by improving the structure, and the energy efficiency is improved.