High-pressure water pump

Abstract

A high-pressure water pump comprises an upper pump body, a lower pump body, a water outlet valve, a water inlet valve, a plunger, a guide sleeve, a water inlet channel, a water outlet channel and a pump-out valve. The upper pump body is connected with the lower pump body through connection bolts, and a seal ring is arranged between the upper pump body and the lower pump body. The plunger is sleeved with the upper pump body, the upper end of the plunger is in threaded connection with a knocking cap, and an adjusting cap is arranged at the upper end of the upper pump body. A plunger reset spring is arranged between the knocking cap and the adjusting cap. A seal part is arranged between the upper pump body and the plunger. A working cavity is formed between the plunger and the upper pump body and / or the lower pump body. The water outlet valve, the water inlet valve and the pump-out valve are arranged on the lower pump body. The water inlet valve is connected with the working cavity through the water inlet channel. The water inlet valve is a one-way valve. The water outlet valve is connected with the working cavity through the water outlet channel. The pump-out valve is communicated with the working cavity by being connected with the lower pump body through threads. The high-pressure water pump can guarantee that the quantity of water ejected every time is equal and the intensity of driving a nail every time is the same.

Description

technical field [0001] The invention belongs to the field of mechanical devices, and in particular relates to a high-pressure water pump. Background technique [0002] Most of the current power sources of nail guns are compressed air. To use compressed air, there must be an air inlet pipe connected to the nail gun body. It is very inconvenient for the user to pull the air pipe, and the exhaust noise when the compressed air is working Relatively large, users often need to wear protective earplugs. Moreover, the compressed air must be provided by an air compressor. The air compressor has weight and volume, and it is very inconvenient to carry for decoration personnel. And the air compressor also needs cost. In the prior art, there are also devices that use high-pressure water pumps to generate power, but most of them have a short service life, require frequent replacement of parts, and have the problem of large differences in each nailing force, which greatly reduces product...

AI Technical Summary

Problems solved by technology

[0002] Most of the current power sources of nail guns are compressed air. To use compressed air, there must be an air inlet pipe connected to the nail gun body. It is very inconvenient for the user to pull the air pipe. In addition, the compressed air exhausts noise when it is working. Relatively large, users often need to wear protective earplugs

Moreover, the compressed air must be provided by an air compressor. The air compressor has weight and volume, and it is very inconvenient to carry for decoration personnel.

And the air compressor also needs cost

In the prior art, there are also devices that use high-pressure water pumps to generate power, but most of them have a short service life and require frequent replacement of parts. There is also the problem of large differences in nailing force each time, which greatly reduces production efficiency.

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