5results about How to "Improve the sealing level" patented technology

The utility model relates to the technical field of valve devices, and discloses a connection type spaceflight valve device which comprises a valve body and two valve bodies arranged at the two ends of the valve body, the end, away from the valve body, of one valve body is connected with a flange, and the end, away from the valve body, of the flange is provided with a small isolation flange gasket. The valve body comprises a valve ball, a valve rod, a connecting cover, a low-temperature RPTFE packing combination, a spinning cover and an anti-loosening assembly. The upper end and the lower end of the low-temperature RPTFE filler combination are connected to the interior of the connecting cover by adopting an embedded structure; the rotary pressing cover is rotationally mounted in the connecting cover through threads, and the rotary pressing cover is pressed in the connecting cover through the anti-loosening assembly; the anti-loosening assembly comprises a clamp and a clamp spring gasket. Through the triple sealing structure of the metal sealing ring, the low-temperature RPTFE packing combination and the small isolation flange gasket, the sealing grade is effectively improved, the sealing stability is enhanced, the device is suitable for vacuum, low-temperature and special atmosphere environments, and the high requirement of an aerospace system for the sealing performance is met.

The embodiment of the invention discloses electronic equipment, an elastic sealing part is arranged between two opposite side surfaces of a middle plate and a sound production assembly of the electronic equipment along the thickness direction z of the middle plate, and the side surfaces of the middle plate and the sound production assembly abut against each other through the elastic sealing part to seal a through hole. The connecting line can be located on one side of the elastic sealing component or partially located in the elastic sealing component, through hole sealing and connecting line penetrating are both considered, and the sealing mode can reduce occupation of the internal space of the electronic equipment, so that the performance of the electronic equipment is optimized, and the thickness of the electronic equipment is reduced. Moreover, the through hole in the middle plate in the electronic equipment is sealed, so that the sealing requirement at the opening position of the frame of the electronic equipment can be reduced to a certain extent, and the manufacturing cost of the electronic equipment can be reduced.

The application discloses a robot joint protection assembly based on a foamed aluminum buffer structure and relates to the technical field of robot protection.The device ingeniously introduces passive active heat dissipation (energy-saving and high-efficiency) without additional fans or power driving, skillfully converts the motion kinetic energy of the robot into wind pressure, realizes intelligent heat management of 'heat dissipation during work and air suction during stop', effectively reduces the motor temperature, significantly prolongs the service life, and is mechanically self-cleaning and low in maintenance cost: aiming at the pain point of dust in industrial environment, full-automatic dust scraping and centrifugal dust removal are realized by using a pure mechanical structure, which not only eliminates secondary pollution caused by dust falling back, but also avoids the trouble of artificial regular disassembly and cleaning, and greatly reduces the later operation and maintenance cost.

This utility model relates to a vehicle-mounted air heater, characterized by: multiple sets of PTC heating tube external terminals connected in series and parallel via connecting plates, forming three lead wires; the connecting plates are fixedly connected to the bracket; the bottom of the potting frame is inserted into the heating core near one end of the external terminal, and potting compound is injected to seal the PTC heating tube external terminals, connecting plates, bracket, and lead wire connectors; the temperature sensing wire assembly is fixed to one side of the heat dissipation fins; the main body of the heating unit is inserted into the heating unit housing; the bottom of the control unit housing is inserted into and fixedly connected to the top of the heating unit housing, the top cover is fixed to the upper opening of the control unit housing, and the PCB control board assembly is fixedly installed inside the control unit housing; the three lead wires and the lead wires of the temperature sensing wire assembly are connected to the PCB control board assembly; one end of the grounding wire is connected to the heating core, and one end of each of the high and low voltage wire harnesses is connected to the PCB control board assembly; the other ends of all three are sealed and pass through the wire outlet hole of the top cover. This heater can be installed inside the air conditioning unit.

This invention provides a sealed vacuum camera, relating to the field of vacuum camera technology. The sealed vacuum camera includes a camera housing, a sealing assembly, an imaging assembly, and a suction assembly. The camera housing includes a sealing shell. The sealing assembly is disposed at the window and sealing opening, and is sealed to the sealing shell. The sealing shell and the sealing assembly together form a vacuum chamber. The imaging assembly is disposed within the vacuum chamber. The suction assembly is disposed within the camera housing and includes a suction chamber. A suction pipe at one end of the suction chamber connects to the vacuum chamber and is sealed to the sealing assembly or the sealing shell. Compared to existing technologies, this invention uses sealed connections for the components constituting the vacuum chamber to ensure a sealing effect, while the sealed connection between the suction pipe and the sealing assembly or the sealing shell ensures reliable sealing.