high pressure water pump

Abstract

Disclosed is a high-pressure water pump, comprising an upper pump body (1), a lower pump body (2), a water outlet valve (3), a water inlet valve (4), a plunger piston (41), a guide sleeve (42), a water inlet channel (52), a water outlet channel (53) and a pump-out valve (7). The upper pump body (1) is connected to the lower pump body (2) through a connecting bolt (51), and a sealing ring (44) is provided between the upper pump body (1) and the lower pump body (2); the plunger piston (41) is sheathed in the upper pump body (1), an upper end of the plunger piston (41) is in threaded connection with a knocking cap (5), and an adjustment cap (6) is provided at an upper end of the upper pump body (1); a plunger piston reset spring (40) is provided between the knocking cap (5) and the adjustment cap (6); a sealing element (46) is provided between the upper pump body (1) and the plunger piston (41); a working cavity (50) is formed between the plunger piston (41) and the upper pump body (1) and / or the lower pump body (2); the water outlet valve (3), the water inlet valve (4) and the pump-out valve (7) are provided on the lower pump body (2); the water inlet valve (4) is connected to the working cavity (50) through the water inlet channel (52), and the water inlet valve (4) is a one-way valve; the water outlet valve (3) is connected to the working cavity (50) through the water outlet channel (53); and the pump-out valve (7) is in communication with the working cavity (50) by a threaded connection with the lower pump body (2). The present water pump can ensure that the quantity of water pumped is equal every time and ensure that nailing pressure is the same every time.

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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