A plastic packaging bottle for eye drops

Abstract

The invention discloses an eye drop plastic packaging bottle. The bottle comprises an outer bottle body, and a silicone inner container capable of drawing back in the length direction is installed inthe outer bottle body; a hard connecting piece is connected to the upper end of the silicone inner container; a spiral extruding part is connected to the upper end of the hard connecting piece; an inner thread is formed on the inner wall of the outer bottle body; a spiral block which cooperates with the inner thread to make the spiral extruding part rotatably move downwards is formed at the lowerend of the outer wall of the spiral extruding part; ratchet teeth are formed on the inner wall of the spiral extruding part; a button part is inserted in the spiral extruding part; a pawl part which cooperates with the ratchet teeth to make the spiral extruding part rotate in a single direction is formed at the lower end of the outer wall of the button part; a guide groove inclining clockwise is formed in the upper end of the outer bottle body; the outer wall of the button part is provided with a guide block enabling the button part to rotatably move downwards clockwise along the guide groove.According to the bottle, the dripping amount every time can be adjusted, the operation is convenient, and only part of the button part for manual operation is exposed out of the top of the outer bottle body, so that outer packaging is simple and attractive.

Description

technical field [0001] The invention belongs to the field of medicine packaging bottles, in particular to a plastic packaging bottle for eye drops. Background technique [0002] The Chinese patent whose document number is CN105691937A discloses a kind of eye drop packaging bottle, which comprises a cylindrical bottle body. The front end of the bottle body is formed with a drip tube. There is a piston assembly; the piston assembly includes a piston body and a piston rod; the outer wall of the piston rod is formed with external threads, and the bottle body nut part; the nut part is formed with internal threads; the nut part includes a socket ring, and the outer edge; the outer wall of the insertion ring is formed with a chuck, and the side wall of the bottle body is formed with a bayonet; the piston rod is formed with a strip bayonet, and a dial is worn inside the strip bayonet Rod; the strip-shaped bayonet is formed with bayonet teeth; the driving rod includes a driving rod ...

AI Technical Summary

Problems solved by technology

However, when the user of the above-mentioned scheme uses it, only one drop of medicinal liquid can be dripped out each time, and the amount of medicinal liquid dripped out each time cannot be controlled, and the piston rod that is provided with external threads for extruding eye drops is exposed to the Outside the bottle body, making the appearance of the packaging bottle poor

[0003] In addition, the Chinese patent documents whose document numbers are CN105708616A, CN105662855A and CN205707950U also disclose similar packaging bottle structures. In contrast, the button part is very small), and it is difficult to press the button part in actual use, and the button part is not strong enough and easy to damage

In addition, if the button is accidentally pressed before opening, the pressure in the bottle will increase, which will cause the eye drops to spray out during opening, affecting the user experience

In addition, most of the piston part is located at the rear end of the bottle when the eye drops are not used or a small part is used, which makes the overall structural strength of the packaging bottle poor, and may be damaged under the action of external force, resulting in leakage of the eye drops

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