A high and low temperature resistant valve casting with replaceable nameplate

Abstract

The invention discloses a high and low temperature resistant valve casting capable of replacing a nameplate. The high and low temperature resistant valve casting comprises a valve body, wherein the front outer wall of the valve body is fixedly connected with a nameplate seat; the front outer wall of the nameplate seat is provided with a sliding groove; the inner of the sliding groove is slidably connected with the nameplate; the upper surface of the nameplate is symmetrically provided with first fixing grooves, and the lower surface of the nameplate is symmetrically provided with second fixinggrooves; the upper surface of the sliding groove is symmetrically provided with first through holes, and the lower surface of the sliding groove is symmetrically provided with second through holes; first fixing blocks are separately arranged in the two first through holes; the upper surfaces of the two first fixing blocks are separately and fixedly connected with first connecting rods; and the top ends of the two first connecting rods are fixedly connected with the same first transverse plate. The high and low temperature resistant valve casting capable of replacing the nameplate has simple design and is convenient to operate, and the nameplate can be fixed in the nameplate seat, so that the nameplate is not prone to falling off from the nameplate seat, and the nameplate is convenient todisassemble, therefore, the time is saved.

Description

technical field [0001] The invention relates to the technical field of valve casting, in particular to a high and low temperature resistant valve casting with a replaceable nameplate. Background technique [0002] In the existing preparation process of valve castings, most of them adopt the method of sand casting with single mold and double sand, that is, the casting method of horizontal parting surface, and the upper and lower sand boxes form a pouring unit. This method not only requires a large In such a site, the amount of molding sand is large, and the workload of the workers is also very large. When pouring, the large bag is poured into the small bag and then poured box by box. The disadvantage is that the labor intensity is high and the environment of the working surface is harsh. [0003] At present, the nameplate on the high and low temperature resistant valve castings is generally fixed by glue. However, under long-term use, the glue is easy to cause the nameplate t...

AI Technical Summary

Problems solved by technology

[0003] At present, the nameplate on the high and low temperature resistant valve castings is generally fixed by glue. However, under long-term use, the glue is easy to cause the nameplate to fall off from the outer surface of the valve, and the nameplate can only be placed after repeated fixing. On the valve body, it is time-consuming and laborious, and it is inconvenient to replace

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