COMBINED BARREL BODY

WIPO Patent Application WO/2024/051841

A1

A combined barrel body, comprising a first barrel body (A), a second barrel body (B) and a sealing strip (3), wherein a first connection portion (1) is provided at one end of the first barrel body, and a butt joint protrusion (11) is provided on the first connection portion; a second connection portion (2) is provided at one end of the second barrel body, and a butt joint recess (21) for being in matching connection with the first connection portion is provided in the second connection portion; the sealing strip is arranged in the butt joint recess, and before the butt joint protrusion is inserted into the butt joint recess, the sealing strip has a first length W2 in an insertion direction (X) in which the butt joint protrusion is inserted into the butt joint recess, and a compression length in which the butt joint protrusion squeezes and compresses a portion of the sealing strip in the insertion direction is L, and L ≥ 0.3W2; and a sealing side portion arranged between the side of the butt joint protrusion and the side of the butt joint recess has a sealing length D, wherein D ≥ 1.1(W2-L). By means of the technical solution, a sealing strip is squeezed to produce a large deformation and form a recess-like sealing structure to achieve good sealing between the butt joint protrusion and the butt joint recess, so that the combined barrel body has a simple structure, requires little transportation space, and is easy to assemble.

MA ZHIXIN (CN)
YU ZHIFENG (CN)
ZHOU WENJUN (CN)

PCT/CN2023/117882

March 14, 2024

September 08, 2023

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KINGSTAR TOOLS CO LTD (CN)

B65D6/24; B65D8/04

CN114753443A	2022-07-15
GB1370494A	1974-10-16
CN101675278A	2010-03-17
US20180080564A1	2018-03-22

SCIHEAD IP LAW FIRM (CN)

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