6results about How to "Guaranteed sealing function" patented technology

The utility model discloses a ship tail shaft sealing device capable of achieving emergency sealing, which comprises a tail shaft sealing sleeve, a tail shaft sealing seat and four tail shaft sealing rings arranged between the tail shaft sealing sleeve and the tail shaft sealing seat, and a sealing moving ring fixedly connected to the tail shaft sealing sleeve in a sealing mode is arranged in a middle ring cavity between the two tail shaft sealing rings in the middle. The end face of one end of the fixed sealing ring can be attached to the corresponding end face of the movable sealing ring, a piston part is arranged at the other end of the fixed sealing ring and movably supported in a piston cavity of the driving cylinder sleeve, the driving cylinder sleeve is installed on the stern shaft sealing seat, and driving oil holes communicated with a hydraulic station are formed in the two ends of the piston cavity respectively. Two liquid discharge holes are formed in the two ends of the bottom of the middle annular cavity and connected to corresponding oil discharge containers or water discharge containers in a cabin through corresponding communicating holes respectively. According to the ship stern shaft sealing device capable of achieving emergency sealing, emergency sealing can be started under the condition that a conventionally-arranged stern shaft sealing ring fails, and the stern shaft sealing function is maintained.

The utility model relates to the technical field of sampling tubes, in particular to a novel blood sampling tube which comprises a temporary support, a plurality of circular grooves are formed in the top of the temporary support, blood sampling tubes are placed in the circular grooves, and first annular anti-falling blocks and second annular anti-falling blocks are arranged on the outer walls of the blood sampling tubes. Four first rubber positioning sheets which are arranged in an annular array are arranged at the middle upper part of the inner wall of the circular groove, and two second rubber positioning sheets which are arranged in a bilateral symmetry manner are arranged at the positions, close to the bottom, of the inner wall of the circular groove. According to the novel blood sampling tube, a first annular anti-falling block and a second annular anti-falling block are arranged and are matched with a first V-shaped groove in a first rubber positioning piece and a second V-shaped groove in a second rubber positioning piece respectively, so that the movement of the blood sampling tube in the longitudinal direction and the transverse direction can be effectively limited, and the blood sampling tube is prevented from moving or sliding due to shaking; the stability of the sampling pipe is greatly improved, and the sampling pipe is particularly suitable for being used in transportation or bumpy environments.

A breathable container sealant according to an exemplary embodiment includes a support layer and a sealing layer (heat sealing resin) in which a portion of the sealant forms a hole, and a breathable resin is bonded to a breathable paper or a breathable non-woven fabric on an upper surface of the support layer in which the hole is formed. Accordingly, provided is a sealant which seals a liquid inside a container, allows gas inside the container to penetrate out of the container, and prevents outside air from flowing into the container through a breathable resin and paper or non-woven fabric while maintaining sealing performance.

The invention provides an airborne high-power shielding serialized bus terminal assembly, and relates to the technical field of airborne high-power power supply and distribution equipment.The airborne high-power shielding serialized bus terminal assembly comprises a frame plate, a bus terminal is inserted in the front side of the frame plate, and the frame plate is in fastening connection with the bus terminal through a positioning piece and a fastening piece in sequence; the frame plate is sleeved with a conductive rubber gasket, and the conductive rubber gasket is tightly attached to the flange face of the frame plate. According to the invention, large-current electric connection requirements of various connection forms can be met, sealing and shielding functions of the bus terminal assembly are realized, and the bus terminal assembly has good insulativity and shielding performance, is also suitable for front and back installation forms, and has good assemblability and maintainability; and when the convergence terminal is locked through the fastener, the convergence terminal is positioned on the frame plate through the positioning piece, so that even if the convergence terminal assembly is subjected to mechanical loads such as violent vibration, impact and the like, the fastener is loosened and falls off, the convergence terminal can still be mounted on the frame plate, and the connection reliability is improved.

This application relates to the field of low-temperature storage technology and discloses an insulated door for refrigeration equipment. The insulated door includes a shell and a glass module. The shell has an installation space. The glass module is disposed in the installation space. The glass module includes an outer glass layer, a middle glass layer, a first sealing element, an inner glass layer, and a second sealing element. A first heat insulation cavity is formed between the middle glass layer and the outer glass layer. The first sealing element is disposed around the periphery of the first heat insulation cavity to seal the first heat insulation cavity. A second heat insulation cavity is formed between the inner glass layer and the middle glass layer. The second sealing element is disposed around the periphery of the second heat insulation cavity to seal the second heat insulation cavity. At at least one edge of the glass module, the first sealing element and the second sealing element are misaligned.

The application belongs to the technical field of electric meter, and particularly relates to an electric meter network port sealing device and an intelligent electric meter. The electric meter network port sealing device comprises a shell, a network port and a clamping part protrudingly arranged at the network port are arranged on the shell, a cover piece, the cover piece covers the network port in a closed state, the cover piece is rotatably installed on the shell through a rotating connecting part, the cover piece comprises a sealing part for sealing the network port and a foldable folding part, and when the cover piece rotates from the closed state to an open state, an action force opposite to the opening rotating direction of the folding part is applied to the folding part, the folding part is bent, and the folding part and the clamping part are clamped with each other, so that the cover piece is maintained in a stable open position. The electric meter network port sealing device can effectively solve the problem that the cover piece is prone to tilting during testing, and has the advantages of simple structure, convenient operation and low cost.