Pump shell with good sealing performance

Abstract

The invention discloses a pump shell with good sealing performance, and relates to the technical field of water pump accessories. The pump shell with good sealing performance comprises a lower shell and an upper shell, wherein a connecting ring is fixedly connected to the top of the lower shell, a shell is fixedly connected to the top of the connecting ring, a lower protruding edge is fixedly connected to the top of the shell, supporting ribs are further fixedly connected between the bottom of the lower protruding edge and the outer wall of the shell, a threaded groove is formed in the inner wall of the shell, and a sealing groove is further formed in the top of the connecting ring. Through the arrangement of the sealing ring, the outer shell, the inner shell and the fixing structure, the outer shell and the inner shell are rotationally connected through a thread, the sealing ring is gradually embedded into the sealing groove, the sealing effect is achieved, and then the outer shell and the inner shell are fixed through the fixing structure for fixing the lower protruding edge and the upper protruding edge. The fixing structure in the fixing mode can bear acting force in the horizontal direction, so that the acting force borne in the vertical direction is small, looseness is not prone to occurring, the sealing duration time is longer, and the sealing effect is better.

Description

technical field [0001] The invention relates to the technical field of water pump accessories, in particular to a pump casing with good sealing performance. Background technique [0002] The pump casing is the outer casing of the water pump. As a protection device, it needs to have the characteristics of strong strength, good heat dissipation, and good sealing. The patent with the authorized notification number of CN 207437340 U discloses a pump casing. By installing bolts on the connection holes of the pump casing, the grooves on the first convex edge and the second convex edge conflict with the sealing ring to achieve a sealing effect. There is a problem with this method. The first convex edge and the second convex edge are completely fixed by bolts, so a vertical reaction force will be generated on the bolts. As the use time increases, the bolts will move, resulting in this The sealing device is loose, so the sealing effect is reduced. Contents of the invention [000...

AI Technical Summary

Problems solved by technology

The patent with the authorized notification number of CN 207437340 U discloses a pump casing. By installing bolts on the connection holes of the pump casing, the grooves on the first convex edge and the second convex edge conflict with the sealing ring to achieve a sealing effect. There is a problem with this method. The first convex edge and the second convex edge are completely fixed by bolts, so a vertical reaction force will be generated on the bolts. As the use time increases, the bolts will move, resulting in this The sealing device is loose, so the sealing effect is reduced

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