Replacement device for vacuum container suction piston

Abstract

The invention relates to the technical field of vacuum containers, and especially relates to a replacement device for a vacuum container suction piston. The replacement device comprises a shell, a replacement wheel disc and a push-pull rod; the inside of the shell is hollow to form a working chamber; the working chamber is provided with a first interface for communicating with a vacuum container suction port and a second interface for communicating with vacuum-pumping equipment; the replacement wheel disc is rotatably supported in the working chamber; the replacement wheel disc is provided with at least two embedded ports; at least one of the embedded ports is embedded with a spare piston, and at least one of the embedded ports is vacant; when the replacement wheel disc rotates, each embedded port can be alternately sent to a position coaxial with the first interface; the push-pull rod can be inserted into the shell in a reciprocating manner along the axis and can pass through the embedded port coaxial with the first interface; and the push-pull rod is used to pull a working piston at the vacuum container suction port to the vacant embedded port or push the spare piston in the embedded port to the vacuum container suction port. According to the replacement device for the vacuum container suction piston provided by the invention, the piston at the vacuum container suction port can be replaced on the premise of maintaining the vacuum degree of the vacuum container.

Description

technical field [0001] The invention relates to the technical field of vacuum containers, in particular to a replacement device for a suction port piston of a vacuum container. Background technique [0002] As a traditional technology, vacuum technology is not only widely used in daily life, but also plays a very important role in industry. In the field of superconductivity, vacuum technology also plays an important role. It is not only one of the necessary conditions to ensure the normal operation of superconducting, but also an artificial barrier to protect superconducting cables. [0003] The vacuum container is usually provided with a suction port for vacuuming. After the vacuuming is completed, the suction port is sealed with vacuum valves, pistons and other equipment to maintain the vacuum degree inside the vacuum container. Although this method can well adapt to various vacuum containers and seal the containers, it also has disadvantages. With the aging of equipmen...

AI Technical Summary

Problems solved by technology

Although this method can well adapt to various vacuum containers and seal the containers, there are also disadvantages

With the aging of equipment such as vacuum valves or pistons, or the annual inspection of related equipment, the problem of replacing equipment will definitely be involved. In the traditional way, the piston must be replaced after destroying the vacuum environment of the vacuum container.

Images