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Sewage pump sealing assembly and sewage pump

A technology for sealing components and sewage pumps, which is applied to pump components, parts of pumping devices for elastic fluids, pumps, etc., can solve the problems of sewage pump pressure difference, increase the complexity of sealing structures, etc., and achieve improved sealing effect, The effect of reducing complexity

Pending Publication Date: 2022-07-08
TAIZHOU TAIFENG PUMP IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a sewage pump sealing assembly and a sewage pump, which solves the problem that the pressure difference between the inside and outside of the existing sewage pump increases the complexity of the sealing structure

Method used

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  • Sewage pump sealing assembly and sewage pump
  • Sewage pump sealing assembly and sewage pump
  • Sewage pump sealing assembly and sewage pump

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Embodiment

[0032] like Figure 1-6 As shown, the embodiment of the present invention provides a sewage pump sealing assembly, including a pump body 4, the pump body 4 is cylindrical, the middle of the pump body 4 is interspersed with a rotating shaft 10, the interior of the rotating shaft 10 is provided with a chamber, and the chamber A piston 18 is slidably provided inside the pump body, that is, the position of the piston 18 can be changed, and both ends of the rotating shaft 10 are provided with air passages 17, and the air passage 17 located in the upper part is communicated with the interior of the pump body 4, and the air passage 17 located in the lower part and The pump body 4 is connected to the outside, that is, the pumped liquid can enter the interior of the rotating shaft 10. This type of water pump usually works underwater, and in terms of sealing, if there is a pressure difference between the inside and outside of the pump body 4, there is a The tendency of the fluid to ente...

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Abstract

The invention provides a sewage pump sealing assembly and a sewage pump, and relates to the field of water pumps. The sealing assembly comprises a pump body, a rotating shaft is arranged in the middle of the pump body in a penetrating mode, a cavity is formed in the rotating shaft, a piston is arranged in the cavity in a sliding mode, air channels are formed in the two ends of the rotating shaft in a penetrating mode, a cover plate is fixedly connected to the upper end of the pump body, and a convex ring is arranged on the edge of the lower end of the cover plate. A groove is formed in the upper end of the pump body, a second air bag ring is placed in the groove, a shaft pipe is fixedly connected to the middle of the lower end of the pump body, the side wall of the lower portion of the rotating shaft is sleeved with two sealing rings, a first air bag ring is arranged between the two sealing rings, the inner wall of the shaft pipe is in threaded connection with a check ring, and the sealing assembly is used for the sewage pump. The piston is arranged in the rotating shaft, balance of internal pressure and external pressure is achieved along with the action of the piston, and the sealing performance of the sewage pump is improved in cooperation with the arrangement of the first air bag ring and the second air bag ring.

Description

technical field [0001] The invention relates to the technical field of water pumps, in particular to a sewage pump sealing assembly and a sewage pump. Background technique [0002] A water pump is a machine that transports or pressurizes a liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the liquid energy, and is mainly used to transport liquids including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal. [0003] A sewage pump, as the name suggests, is a pump used to pump sewage. The water pump is divided into submersible and non-submersible. The working impeller structure of the submersible pump is located in the pumped liquid together with the motor structure, while the non-submersible pump has the motor drive structure located on the shore. The sewage pump is usually a submersible design, and a good sealing performance of the sewage pump is required at this time. [0004] The sealing ...

Claims

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Application Information

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IPC IPC(8): F04D29/66F04D29/08F04D29/10
CPCF04D29/669F04D29/086F04D29/126
Inventor 阮明伟严年喜阎红民
Owner TAIZHOU TAIFENG PUMP IND
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