| 摘要 |
A valve mechanism for compressible tubes containing semisolid products comprises a cylindrical mounting body (1) having the following parts: lower means (2) for coupling in a fluid-tight manner to the bottleneck (3) of an usual compressible tube-like container (4); external cylindrical means (5) for coupling in a rotary manner to a cylindrical cap (6) rotatable clockwise and anti-clockwise; internal means (7) for mounting two valves, a lower valve (8) and an upper valve (9); the lower valve (8) is a non-return valve that retains the product; the upper valve (9) is a slide valve that moves vertically; and upper means (10) to form a cam (11) for moving the upper slide valve (9), the latter having means (12) for closing and opening a passage (13) in the upper part of the cylindrical cap (6), where the product is delivered in the desired quantities accumulated in a recess (40). |
