Water-lubricated high-pressure plunger pump and hand-held high-pressure injection device

Abstract

An embodiment of the invention discloses a water-lubrication high-pressure plunger pump and a handheld high-pressure jet apparatus, and relates to the technical field of hydraulic pressures. By the aid of the water-lubrication high-pressure plunger pump and the handheld high-pressure jet apparatus, the problem of inconvenience in designing water flow channels in the prior art can be solved. The water-lubrication high-pressure plunger pump comprises a shell with a through hole. Cylinders are arranged in the through hole, and cylinder holes are circumferentially formed in the cylinders; a water inlet end cover is arranged at one end of the through hole, a water outlet end cover is arranged at the other end of the through hole, a water inlet channel which can be communicated with the external is arranged on the water inlet end cover, a water outlet channel which can be communicated with the external is arranged on the water outlet end cover and is communicated with a water outlet hole in a flow distribution disc, and the water inlet channel is communicated with a water inlet hole in the flow distribution disc via side gaps between the cylinders and the shell. The water-lubrication high-pressure plunger pump and the handheld high-pressure jet apparatus in the embodiment of the invention are mainly applied to miniaturized hydraulic equipment, and the water-lubrication high-pressure plunger pump is particularly applied to the handheld high-pressure jet apparatus.

Description

technical field [0001] The invention relates to the field of hydraulic technology, in particular to a water-lubricated high-pressure plunger pump and a hand-held high-pressure injection device. Background technique [0002] The high-pressure plunger pump performs reciprocating piston movement in the cylinder bore of the cylinder body through its plunger to realize the suction and booster pumping of the liquid, and the cylinder body of the high-pressure plunger pump is generally installed inside the casing, which mainly includes the casing and end caps at both ends of the housing. The water inlet and the water outlet of the existing high-pressure plunger pump are generally all arranged at the same end cover, so the water inlet and the water outlet can directly correspond to the cylinder bore of the cylinder body. [0003] In the process of realizing and using the existing high-pressure plunger pump, the inventor found that there are at least the following problems in the pri...

AI Technical Summary

Problems solved by technology

[0003] In the process of realizing and using the existing high-pressure plunger pump, the inventor found that there are at least the following problems in the prior art: since the water inlet and the water outlet are designed on the same end cover, it is difficult to design the water flow channel, especially When the high-pressure plunger pump needs to be miniaturized, the design of the water flow channel is more difficult; in addition, if the miniaturized high-pressure plunger pump is applied to a hand-held high-pressure injection device, such as a hand-held high-pressure fire extinguishing equipment, a hand-held high-pressure For flushing equipment, etc., since the water outlet of the hand-held high-pressure spray device needs to be designed at the front end, and at this time, the water inlet is also designed at the front end, which will inevitably make the product inconvenient to carry and install

Images