4results about How to "Improve the tightness" patented technology

This utility model discloses a leak-free filter cartridge filter, relating to the technical field of filter cartridge filters. It includes a housing and a fastening assembly. A filter cartridge body is disposed inside the housing, and an mounting ring is installed on the outer side of the top of the filter cartridge body. A fixing plate is installed on the inner wall of the housing. The fastening assembly, used for pressure sealing to prevent leakage, is located on the upper end of the fixing plate. The fastening assembly includes a pressure plate, a sealing strip, a connecting frame, a mounting plate, and a mounting rod. A sealing strip is installed on the lower end of the pressure plate, and a connecting frame is connected to the upper end of the pressure plate. The mounting plate is connected to the upper end of the connecting frame, and a mounting rod is installed on the upper end of the mounting plate. This leak-free filter cartridge filter uses the fixing plate and pressure plate to clamp and fix the mounting ring from the outside. As the mounting plate is installed inside the housing, the pressure plate moves downward, applying pressure to the mounting ring and the fixing plate, increasing the sealing between them and preventing leakage due to aging.

The application relates to the technical field of image scanning, in particular to an image sensor which comprises a support, a frame body and an end cover connected to the end of the support and the frame body, the support is connected to the bottom of the frame body, the middle part of the frame body is penetrated along the X-axis direction, the two end parts of the frame body are sealed around in the YZ plane, a first chamber with a sealed periphery and a penetrated middle part is formed, the top of the frame body is provided with an opening which is connected with the first chamber in a penetrating mode along the Z-axis direction, a glass is mounted on the top opening of the frame body, and the end cover is detachably and sealingly connected with the end of the frame body through a sealing gasket. The application can effectively prevent external impurities such as dust and water vapor from entering the inside of the first chamber, avoids pollution or corrosion of the core components in the first chamber, greatly reduces the equipment failure risk caused by impurities, guarantees long-term stable operation of the equipment, and has the advantages of good sealing performance, high practicability and the like.

The utility model discloses a base station radio frequency power amplifier module sealed protection structure relates to base station module technical field, including protection upper box and heat abstractor, the below of protection upper box is provided with protection lower box, and the heat abstractor for buffering and heat dissipation sets up inside protection upper box, and heat abstractor includes partition, glue injection groove, installation slot, heat transfer sheet and fin, the inside of protection upper box is provided with glue injection groove to partition, and the surface of partition is provided with installation slot, the inside installation of installation slot has heat transfer sheet. This base station radio frequency power amplifier module sealed protection structure is separated by partition and is separated in protection upper box and protection lower box inside glue injection space, can still increase the firmness and the sealing degree of fin installation when increasing the protection box buffering effect after the glue injection in the glue injection groove interior, and installation slot is used for the installation of heat transfer sheet, and heat transfer sheet transfers the heat generated when module works to fin, and dissipates heat through fin.

The application discloses a sealable sealing strip assembly capable of directional heating in the field of rail car doors, which comprises a sealing strip and a door leaf, a mounting cavity is arranged in the sealing strip, a heating device and a heat insulation structure are arranged in the mounting cavity, the heating device is wrapped in the heat insulation structure, one side of the heating device is in contact with the sealing strip and faces the door leaf, a sealing rubber strip is mounted on the door leaf, the door leaf is forced to move, and the sealing rubber strip intermittently contacts a heat conduction surface of the sealing strip; in the application, the heat insulation structure and the heating device are arranged in the mounting cavity of the sealing strip, the heat insulation structure wraps around the heating device, only one side is left as a heat transfer port, the concentrated one-way conduction of heat energy is ensured, the position between the rubber strip of the car door and the sealing strip which may be iced is heated and kept warm during actual installation, the heat energy utilization rate is improved, the power burden of the vehicle is reduced, and the application is more energy-saving and environment-friendly.