CN-224200776-U - Leakage-proof cylinder of piston type gas compressor

CN224200776UCN 224200776 UCN224200776 UCN 224200776UCN-224200776-U

Abstract

The utility model provides a leakage-proof cylinder of a piston type gas compressor, which aims to solve the problem of air leakage of the cylinder. The key point is that the cylinder valve cover comprises a valve pressing cover and a cylinder valve hole cover, a circle of fastening bolts are arranged on the cylinder valve hole cover, a plurality of jackscrews are further arranged on the cylinder valve hole cover, the upper ends of the jackscrews are jackscrew caps, the lower ends of the jackscrews are flat, the jackscrew caps of the jackscrews are pressed on the valve pressing cover through the upper ends and the lower ends of the cylinder valve hole cover, so that gaps are formed between the valve pressing cover and the cylinder valve hole cover, and the jackscrews are positioned in the inner circle of the circle of fastening bolts. The cylinder valve cover has the advantages that even if the compressed air pressure is too high, as the valve cover is propped by a plurality of jackscrews and cannot jump up and down, a gap is kept between the valve cover and the cylinder valve cover, the valve cover is prevented from repeatedly colliding with the cylinder valve cover, the cylinder valve cover and bolts thereof are prevented from loosening, and sealing surfaces of the cylinder valve cover are kept when the cylinder valve cover leaves a factory.

Inventors

ZHU CHAO
Cheng Bailing
XIAO XIONG
GENG DAN

Assignees

沈阳申元气体压缩机有限责任公司

Dates

Publication Date: 20260505
Application Date: 20250813

Claims (1)

1. The utility model provides a piston gas compressor's leak protection cylinder, includes pressure valve bonnet and cylinder valve hole lid, has round fastening bolt, characterized by on cylinder valve hole lid: the cylinder valve hole cover is also provided with a plurality of jackscrews, the upper ends of the jackscrews are jackscrew caps, the lower ends of the jackscrews are flat, the jackscrew caps of each jackscrew are pressed on the cylinder valve hole cover, the lower ends of the jackscrew caps are propped against the valve pressing cover, and a gap is formed between the valve pressing cover and the cylinder valve hole cover; the jackscrews are positioned in the inner ring of the circle of fastening bolts.

Description

Leakage-proof cylinder of piston type gas compressor Technical Field The utility model relates to a piston type gas compressor, in particular to a cylinder of the piston type gas compressor. Background The cylinder of the piston type high-pressure gas compressor is outside the cylinder body, and further comprises a gas valve, a pressure valve cover and a cylinder valve hole cover, wherein the pressure valve cover is arranged between the gas valve and the cylinder valve hole cover and covers the gas valve. The cylinder valve cover is mounted and fastened to the cylinder body using fastening bolts to seal the cylinder. The use of the fastening bolts means that a plurality of fastening bolts enclose a circle on the circular cylinder valve hole cover. When the high-pressure gas compressor is operated, the compressed gas pressure gradually rises along with the reciprocating movement of the piston, so that the pressure valve cover is made to jump up and down, and then repeatedly collides with the cylinder valve hole cover, the fastening bolt is loosened by the repeatedly collided cylinder valve hole cover, and then the cylinder valve hole cover is jacked up, namely, a gap is generated between the sealing surface of the cylinder valve hole cover and the cylinder body, and the cylinder leakage phenomenon occurs. Disclosure of Invention In order to solve the problem of air leakage of the cylinder, the utility model aims to provide a leakage-proof cylinder of a piston type gas compressor. The cylinder valve cover is characterized in that a plurality of jackscrews are further arranged on the cylinder valve cover, the upper ends of the jackscrews are jackscrew caps, the lower ends (top ends) of the jackscrews are flat, the jackscrew caps of each jackscrew are pressed on the cylinder valve cover, the lower ends of the jackscrew caps are pressed on the cylinder valve cover, a gap is formed between the cylinder valve cover and the cylinder valve cover, and the jackscrews are positioned in the inner ring of the circle of the fastening bolts. Therefore, when the high-pressure gas compressor is operated, even if the air pressure is too high after compression, the pressure valve cover is propped (pressed) by a plurality of jackscrews, so that the pressure valve cover cannot jump up and down, a gap is formed between the pressure valve cover and the cylinder valve hole cover all the time, the pressure valve cover is prevented from repeatedly colliding with the cylinder valve hole cover, the cylinder valve hole cover and fastening bolts thereof are prevented from loosening, and the sealing of the sealing surface of the cylinder valve hole cover in factory is maintained. Drawings The utility model is further described below with reference to the drawings. Fig. 1 is a schematic diagram of the present utility model. Detailed Description The cylinder 5 comprises a valve pressing cover 6 and a cylinder valve hole cover 3, a circle of fastening bolts 1 are arranged on the cylinder valve hole cover, a plurality of jackscrews 2 are further arranged on the cylinder valve hole cover, the upper ends of the jackscrews are jackscrew caps 21, the lower ends of the jackscrews are flat ends 22, the jackscrew caps 21 of each jackscrew are pressed on the cylinder valve hole cover 3, the lower ends of the jackscrews are the top ends 22 and are propped against the valve pressing cover 6, a gap 4 is formed between the valve pressing cover and the cylinder valve hole cover, and the jackscrews are three or four jackscrews 2 which are surrounded into a circle and are positioned in the circle of fastening bolts 1. When the high-pressure gas compressor is operated, even if the compressed air pressure is too high, as the pressure valve cover is propped (pressed) by the three jackscrews and the four jackscrews, the pressure valve cover cannot jump up and down, and a gap is always kept between the pressure valve cover and the cylinder valve hole cover, so that the pressure valve cover is prevented from repeatedly colliding with the cylinder valve hole cover, the cylinder valve hole cover and a fastening bolt thereof are prevented from loosening, and the sealing of the sealing surface of the cylinder valve hole cover is kept when the cylinder valve hole cover leaves a factory.