Quick connecting device

Abstract

The invention discloses a quick connecting device. The quick connecting device comprises an elastic connector, a connecting rod, a piston rod connector and a U-shaped bolt, wherein a counterbore is formed in the right end face of the elastic connector along the axle center; fan-shaped grooves are symmetrically formed in the two ends of the counterbore; an annular groove I is formed in the left endof each fan-shaped groove of the elastic connector; the connecting rod comprises a connecting rod head and a connecting rod body; the connecting rod head is a cylinder being small on the left and large on the right; a disc is arranged in the middle of the left end face of the connecting rod head; fan-shaped faces are symmetrically formed at the two ends of the disc; the thicknesses of the fan-shaped faces are matched with the depths of the annular grooves I; the fan-shaped faces are matched with fan-shaped groove in the right end face of the elastic connector; an annular groove III is formedin the right side of the connecting rod body; the piston rod connector is a cylindrical table; a step through hole is formed in the piston rod connector; an annular groove is formed in a large hole ofthe step through hole in the piston rod connector; and the two ends of the annular groove are each provided with a through hole respectively. The quick connecting device is light and convenient in use, disassembly and assembly time in a test is shortened, efficiency is improved, and labor intensity is relieved.

Description

technical field [0001] The invention relates to the technical field of connection devices, in particular to a quick connection device of an elastic testing device. Background technique [0002] Since the parts on the bomb to be tested need to be tested repeatedly several times, the frequent connection between the cylinder propulsion device and the test body during the test requires that the connecting device can withstand large thrust and pull, and can be quickly removed or assembled and connected; However, in the prior art, one end of the test connecting rod is connected by thread, and the other end is connected by a fork pin, and most of them are processed as a whole structure. During the connection process, the weight is relatively large, and the thread screwing time is long. It has been used for a long time and is easy to wear and has dirt, so it cannot be screwed on, and fast connection and disassembly cannot be realized. Therefore, it is necessary to design a connectin...

AI Technical Summary

Problems solved by technology

[0002] Since the parts on the bomb to be tested need to be tested repeatedly several times, the frequent connection between the cylinder propulsion device and the test body during the test requires that the connecting device can withstand large thrust and pull, and can be quickly removed or assembled and connected; However, in the prior art, one end of the test connecting rod is connected by thread, and the other end is connected by a fork pin, and most of them are processed as a whole structure. During the connection process, the weight is relatively large, and the thread screwing time is long. It has been used for a long time and is prone to wear and dirt, which makes it impossible to screw on and fast connection and disassembly. Therefore, it is necessary to design a connecting rod that can realize frequent and fast connection to improve the efficiency of the test.

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