Water pump cover

Abstract

The invention relates to a water pump cover. The water pump cover is rotationally connected to a pump body and comprises a positioning plate, a cover plate, a hinge and a cover plate locking ring, wherein one end of the hinge is connected with an unlocking handle through a locking block rotating shaft, and the other end of the hinge is movably connected to the positioning plate in a sleeving manner through a positioning pin; a connecting cylinder matched with the positioning plate is fixedly arranged on the pump body, a connecting cover plate is assembled at the top of the connecting cylinder,and a sealing ring is further arranged at the joint of the connecting cover plate and the connecting cylinder; a plurality of protruding blocks are arranged at the joint of the outer ring side face of the connecting cover plate and the connecting cylinder, and a cover plate inner groove matched with the cover plate locking ring is formed in the inner ring side face of the connecting cover plate;a connecting cylinder groove is formed in the position, close to the joint of the connecting cover plate, of the connecting cylinder; and a connecting cylinder protruding block is formed at the jointof the connecting cylinder and the positioning plate. The protruding blocks and the connecting cylinder groove are wedged and are in positioning connection through the cover plate positioning pin. Thewater pump cover has good sealing and pressing reliability, is convenient to dismount and mount and is particularly suitable for a valve deck of a high-pressure water pump.

Description

technical field [0001] The invention belongs to the technical field of water pump accessories, and in particular relates to a water pump cover. Background technique [0002] A water pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali, emulsion, and suspoemulsion. It can also transport liquid, gas mixture and liquid containing suspended solids; the technical parameters to measure the performance of the pump include flow rate, suction lift, head, shaft power, water power, efficiency, etc.; according to different working principles, it can be divided into It is a volumetric water pump, a vane pump, etc.; a volumetric pump uses the volume change of its working chamber to transfer energy; a vane pump uses the interaction between rotating blades and water to transfer en...

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Problems solved by technology

[0003] The working conditions of common water pumps are generally more complicated, and the workplace may contain more sand, gravel and impurities. If the water pump works continuously for a long time, when the accumulation of impurities reaches a certain level, it will cause parts such as the blades of the water pump to not run smoothly. The reduction will also affect the pump body structure of the water pump and increase the wear and loss of the machine; the water pump is usually made of iron material as a whole, and the flow of water in the pump is difficult to see. Therefore, when the water pump fails, the water pump needs to be disassembled In order to know the internal conditions of the pump and the parts that may fail, it is troublesome to judge the fault, and the maintenance is cumbersome, which will affect the operation of the pump.

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