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Pneumatic tool

a pneumatic and tool technology, applied in the field of pneumatic tools, can solve the problems of high-pressure and high-speed gas clogging in the air outgoing pipe, unlikely to exhaust, and difficult to go through high-pressure and high-speed gas

Inactive Publication Date: 2017-07-06
SUPER MASTER DEVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a pneumatic tool that includes a weight block to increase its torsion and rotation speed. Unlike conventional tools, the present invention has a buffer turbulent channel which helps to slow down the high-pressure and high-speed gas inside the tool, allowing it to be smoothly exhausted from the gas outlet hole. This solves the problem of the high-speed gas not being able to smoothly drive the pneumatic device to rotate in conventional technology.

Problems solved by technology

While persistently flowing from the chamber to the air outgoing pipe, the high-pressure and high-speed gas is likely to clog in the air outgoing pipe and unlikely to exhaust.
Thus, the high-pressure and high-speed gas is hard to go from the air incoming pipe to the air cell to drive the pneumatic wheel.

Method used

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Embodiment Construction

[0019]The technical contents of the present invention will be described in detail in cooperation with drawings below.

[0020]Refer to FIGS. 1-5. The present invention proposes a pneumatic tool 1, which comprises a housing 11, a chamber 12 defined by the housing 11, a pneumatic mechanism 13 disposed inside the chamber 12, and a cylinder 14 disposed inside the chamber 12. The housing 11 includes a gas inhale channel 111, a gas exhaust channel 112, and an end plate 113. The gas inhale channel 111 and the gas exhaust channel 112 respectively interconnect with the chamber 12. The end plate 113 constrains the pneumatic mechanism 13 and the cylinder 14 inside the chamber 12. The pneumatic tool 1 may be a tool driven by a high-pressure and high-speed gas, such as a grinder or a sander. The pneumatic tool 1 includes a utility tool 15, such as a grinding wheel or a sanding wheel. The pneumatic mechanism 13 includes a pneumatic wheel 131 driven to rotate by a high-pressure and high-speed gas and...

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Abstract

A pneumatic tool comprises a housing, a chamber formed inside the housing, and a pneumatic mechanism and a cylinder disposed inside the chamber. The housing includes a gas inhale channel and a gas exhaust channel respectively interconnecting with the chamber. A ventilation gap is formed between the cylinder and chamber. The cylinder includes a compartment receiving the pneumatic mechanism, a gas inlet hole interconnecting with the compartment and gas inhale channel, and at least one gas outlet hole interconnecting with the compartment and ventilation gap. The pneumatic tool also comprises at least one buffer turbulent channel disposed on at least one of the sides of the cylinder and chamber, which face the ventilation gap. The variation of the cross section area between the ventilation gap and buffer turbulent channel can regulate flowing the speed of the high-pressure and high-speed gas and make it drive the pneumatic mechanism smooth.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a pneumatic tool, particularly to a pneumatic tool using a buffer turbulent channel to make high-pressure and high-speed gas to flow smooth.BACKGROUND OF THE INVENTION[0002]A pneumatic grinder is a handheld tool driven pneumatically by compressed air to grind or polish the surface of a workpiece normally made of metal or wood. A Taiwan patent No. M295556 disclosed a pneumatic grinder, which comprises a housing, a cylinder, a transmission shaft, a grinding wheel, and a pneumatic wheel. The housing includes a chamber, an air incoming pipe and an air outgoing pipe. The air incoming pipe and the air outgoing pipe interconnect with the chamber. The cylinder is disposed inside the chamber, including an air cell whose sectional area is smaller than that of the chamber, an air inhale channel interconnecting with the air incoming pipe and the air cell, an air exhaust channel formed in the cylinder and interconnecting with the air c...

Claims

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Application Information

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IPC IPC(8): B24B23/02
CPCB24B23/026
Inventor CHANG, CHUNG-HO
Owner SUPER MASTER DEVING