CN113545591B

CN113545591B - PET cosmetic bottle

Info

Publication number: CN113545591B
Application number: CN202110695484.6A
Authority: CN
Inventors: 耿昊明
Original assignee: Zhejiang Tepuwan Packaging Technology Co ltd
Current assignee: Zhejiang Tepuwan Packaging Technology Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2024-02-20
Anticipated expiration: 2041-06-23
Also published as: CN113545591A

Abstract

The invention discloses a PET cosmetic bottle, which comprises a bottle body and a bottle cap, wherein the bottle body is detachably connected with the bottle cap, a movable tube is movably arranged on the bottle cap, the bottom part of the movable tube is positioned below the bottle cap, the top part of the movable tube is positioned above the bottle cap, a connecting sleeve is arranged at the bottom part of the bottle cap, the movable tube extends into the connecting sleeve, a liquid outlet tube is arranged in the movable tube, the top part of the liquid outlet tube extends to the outside of the movable tube, and a liquid outlet assembly is arranged in the connecting sleeve; the bottom of the connecting sleeve is connected with a liquid inlet pipe, the connecting sleeve is provided with a through hole and is connected with a drainage tube, one side of the connecting sleeve is detachably provided with a containing tank for containing cosmetics for use, and the drainage tube is communicated with the containing tank. Has the effect of selecting the trial cosmetics and the original cosmetics according to the needs, and reduces the waste.

Description

PET cosmetic bottle

Technical Field

The invention belongs to the technical field of cosmetics, and particularly relates to a PET (polyethylene terephthalate) cosmetic bottle.

Background

With the development of technology and the progress of life, the use rate of various advanced cosmetics is higher and higher. The fluid cosmetics comprise oil, emulsion, cream and the like, and the pressing type bottle is generally used for the fluid cosmetics except for the conventional bottle, so that the use is more convenient.

The related art is a cosmetic bottle as disclosed in the patent application document with publication number of CN208181736U, and the technical scheme is as follows: comprises a bottle cap and a bottle body. The lower part of the bottle cap is provided with a thread cavity, and the closed end of the thread cavity is bonded with a sealing piece; the upper part of the bottle body is communicated with a liquid outlet pipe for cosmetic to flow out, an inner plug is sleeved in the liquid outlet pipe, a plug hole concentric with the liquid outlet pipe is formed in the upper part of the inner plug, and the threaded cavity is screwed with the liquid outlet pipe. The sealing piece is provided with the leak protection stopper that is used for plugging the jack after the bottle lid is screwed on the bottle body towards drain pipe one side to thereby prevent cosmetic outflow in the bottle body. The bottle cap has the advantages that after the bottle cap is screwed on the bottle body, cosmetics contained in the bottle body are not easy to flow out from the plug hole of the inner plug, so that the waste of the cosmetics is reduced.

The related art has the following problems that when purchasing cosmetics in ordinary life, cosmetics are often required to be tried out, general merchants can provide test supplies, but the test supplies cannot be sold, customers can purchase another bottle of cosmetics of the same brand after trying out satisfaction, but the customers worry that the purchased cosmetics are not the same as the tried-out cosmetics, quality problems can occur, and the merchant is likely to waste or influence secondary sales if the cosmetics for sale are used for the customers. There is therefore a need for a cosmetic bottle that can be switched between a test product and a vending product.

Disclosure of Invention

Aiming at the problems, the invention discloses a PET cosmetic flat bottle which has the effects of selecting a trial cosmetic and an original cosmetic according to the needs, is convenient to use and reduces waste.

The invention discloses a PET cosmetic flat bottle, which comprises the following technical proposal,

the PET cosmetic bottle comprises a bottle body and a bottle cap, wherein the bottle body is detachably connected with the bottle cap, a movable tube is movably arranged on the bottle cap, the bottom of the movable tube is positioned below the bottle cap, the top of the movable tube is positioned above the bottle cap, a connecting sleeve is arranged at the bottom of the bottle cap, the movable tube extends into the connecting sleeve, a liquid outlet tube is arranged in the movable tube, the top of the liquid outlet tube extends to the outside of the movable tube, and a liquid outlet assembly is arranged in the connecting sleeve; the bottom of the connecting sleeve is connected with a liquid inlet pipe, the connecting sleeve is provided with a through hole and is connected with a drainage tube, one side of the connecting sleeve is detachably provided with a containing tank for containing cosmetics for use, and the drainage tube is communicated with the containing tank.

By adopting the technical scheme, the structure of the bottle body is used for containing cosmetics to be sold, the structure of the containing tank is used for storing cosmetics for use, and the structures of the liquid outlet pipe and the movable pipe are used for realizing push type liquid outlet; when the cosmetic bottle is required to be used, the cosmetics to be sold in the bottle body cannot be wasted by discharging the cosmetics to be used in the containing tank through the pipeline, and after the cosmetics are purchased, the cosmetics in the bottle body cannot be wasted easily.

Further, the liquid outlet component comprises a piston arranged at the bottom of the movable pipe, a reset piece arranged at the bottom of the piston, a first check valve arranged at one side of the connecting sleeve and a second check valve arranged at the bottom of the connecting sleeve, wherein the first check valve is hinged with the outer wall of the connecting sleeve, the second check valve is hinged with the inner wall of the bottom of the connecting sleeve, and the second check valve is positioned at the top of the liquid inlet pipe.

Through adopting above-mentioned technical scheme, increased the structure of piston, check valve and restoring piece and as out the liquid subassembly, extrude the air in the adapter sleeve through pushing down the structure of movable tube when using, make movable tube reset under the effect of restoring piece, can make the cosmetics enter into in the adapter sleeve under the effect of atmospheric pressure, discharge through the drain pipe.

Still further, reset piece is including setting up the return spring in the piston bottom, is provided with the baffle in the adapter sleeve, and the top of baffle and the bottom of movable tube are connected respectively at return spring's both ends, and the drain pipe passes the baffle and extends to the baffle below, and return spring cover is established in the outside of drain pipe.

Through adopting above-mentioned technical scheme, used return spring's structure as the return piece, the structure through the baffle is used for carrying out return spring's installation, and return spring has played the effect of restoring to the throne, and return spring can be used for carrying out the reset of movable tube after unclamping.

Further, the drainage tube is connected with the side wall of the connecting sleeve in a sliding manner, and one end of the drainage tube, which is far away from the accommodating tank, extends into the connecting sleeve and abuts against the top of the second one-way valve; the inner wall of the top of the second containing tube is hinged with a third one-way valve.

Through adopting above-mentioned technical scheme, the lateral wall slip that the adapter sleeve was good to the drainage tube links to each other, and the drainage tube tip supports the top of check valve two tightly for check valve two can not open after the drainage tube installation, can only follow the cosmetic of extracting the sample in the holding tank.

Furthermore, a connecting plate is arranged on one side of the connecting sleeve, the accommodating tank is detachably arranged on the connecting plate, a sliding groove is arranged on the connecting plate, the bottom of the accommodating tank is slidably arranged in the sliding groove, a positioning groove communicated with the outside is arranged at the bottom of the sliding groove, a positioning rod is slidably arranged in the positioning groove, a clamping hole matched with the top of the positioning rod is formed in the bottom of the accommodating tank, and the bottom of the positioning rod extends to the outside of the connecting plate; the positioning groove is internally provided with a first reset spring, the first reset spring is sleeved outside the positioning rod, the outside of the positioning rod is provided with an annular plate, and two ends of the first reset spring are respectively connected with the annular plate and the inner wall of the end part of the positioning groove.

Through adopting above-mentioned technical scheme, the structure that has increased the connecting plate is used for holding the installation of pipe, holds jar slidable mounting in the spout, has increased the structure of constant head tank and locating lever for the tip of locating lever enters into the card hole that holds jar bottom under reset spring's effect, realizes holding the location of jar, when dismantling when needs, through the structure of pulling locating lever, makes the tip and the card hole separation of locating lever, can hold the dismantlement of jar.

Furthermore, the top of the connecting plate is provided with a baffle plate, the baffle plate is provided with a second reset spring, one end of the second reset spring is connected with the baffle plate, and the other end of the second reset spring is propped against the accommodating tank.

Through adopting above-mentioned technical scheme, install reset spring's structure on the baffle, after carrying out the separation of locating lever and holding jar, make through reset spring's effect and hold jar and remove, it is more convenient to dismantle.

Furthermore, the bottom of the bottle cap is provided with an annular rubber ring, and the lower end surface of the rubber ring is propped against the top of the bottle body; the bottle cap and the bottle body are detachably connected through a connecting piece.

Through adopting above-mentioned technical scheme, used the structure of rubber circle, the connection leakproofness between dead body and the bottle lid is better.

Further, the connecting piece comprises a connecting rod arranged at the bottom of the bottle cap and an arc plate arranged at the bottom of the connecting rod, a connecting groove matched with the end part of the connecting rod is formed at the top of the bottle body, and an arc groove matched with the arc plate is formed in the inner wall of the end part of the connecting groove; the bottom of the bottle cap is provided with a first magnet, the top of the bottle body is provided with a second magnet, and the magnetism of one side, close to the first magnet, of the second magnet is opposite to that of the other side.

Through adopting above-mentioned technical scheme, increased the structure of connecting rod and arc pole, send into the spread groove with the connecting rod in, rotate the bottle lid and make the arc pole enter into the arc groove in, realized the connection between bottle lid and the body, under the cooperation of magnet one and magnet two for the connection is more stable.

Still further, the inside annular scraper blade that is provided with of body, the outside of body is provided with annular drive plate, and one side that scraper blade and drive plate are close to each other is provided with magnet III and magnet IV respectively, and magnet III and magnet four are mutually close to one side magnetism opposite.

Through adopting above-mentioned technical scheme, can drive magnet four through the slip drive plate and remove, drive magnet three and scraper blade again and remove, when removing, the scraper blade can scrape the inner wall of body for the attached liquid flow direction bottom on the body reduces extravagant.

The invention has at least the following effects:

1. the structure of the bottle body is used for containing cosmetics to be sold, the structure of the containing tank is used for storing cosmetics for use, and the structures of the liquid outlet pipe and the movable pipe are used for realizing push type liquid outlet; when the cosmetic bottle needs to be tried, the trial cosmetics in the accommodating tank are discharged through the pipeline, so that the cosmetics to be sold in the bottle body are not wasted, and after the cosmetics are purchased, the cosmetics in the bottle body are used, so that the waste is not easy to cause;

2. the structure of connecting plate on the adapter sleeve is used for carrying out the installation of holding tank, through the structure of locating lever in the constant head tank, through reset spring's effect on the locating lever for the locating lever tip enters into the draw-in hole of holding tank, conveniently installs and dismantle.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a main structure of an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of an internal structure of an embodiment of the present application;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

fig. 4 is a schematic structural view of a connector in an embodiment of the present application.

Reference numerals: 1. a bottle cap; 11. a rubber ring; 12. a first magnet; 13. a second magnet; 14. a connecting rod; 15. an arc-shaped plate; 2. a bottle body; 21. a driving plate; 22. a scraper; 23. a connecting groove; 3. connecting sleeves; 31. a movable tube; 32. a liquid outlet pipe; 33. a piston; 34. a partition plate; 35. a return spring; 36. a liquid inlet pipe; 37. a first check valve; 38. a second check valve; 4. a receiving tank; 41. a drainage tube; 42. a third check valve; 5. a connecting plate; 51. a chute; 52. a positioning groove; 53. a positioning rod; 54. a first reset spring; 55. a baffle; 56. and a second reset spring.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.

Referring to fig. 1-4, the embodiment of the application discloses a PET cosmetic bottle, including body 2 and bottle lid 1, body 2 and bottle lid 1 detachable connection, movable tube 31 is gone up to movable mounting in the bottle lid 1, and movable tube 31 bottom is located bottle lid 1 below, and movable tube 31's top is located bottle lid 1 top, and bottle lid 1 bottom fixedly connected with adapter sleeve 3, adapter sleeve 3 and bottle lid 1 bottom bond.

The movable tube 31 extends into the connecting sleeve 3, the liquid outlet tube 32 is arranged in the movable tube 31, the top of the liquid outlet tube 32 extends to the outside of the movable tube 31, and the liquid outlet tube 32 and the top of the movable tube 31 are bent, so that cosmetics can be conveniently discharged. A liquid outlet component is arranged in the connecting sleeve 3. The bottom of the connecting sleeve 3 is connected with a liquid inlet pipe 36, the connecting sleeve 3 is provided with a through hole and is connected with a drainage tube 41, one side of the connecting sleeve 3 is detachably provided with a containing tank 4 for containing cosmetics, and the drainage tube 41 is communicated with the containing tank 4. Cosmetic to be sold is contained in the bottle body 2, and cosmetic for use is contained in the containing tank 4.

The bottle body 2 is internally provided with an annular scraping plate 22, and the scraping plate 22 is propped against the inner wall of the bottle body 2 and can slide along the length direction of the bottle body 2. The outside of body 2 installs annular drive plate 21, drive plate 21 offsets with the outer wall of body 2 and can slide along the length direction of body 2, one side that scraper blade 22 and drive plate 21 are close to each other is provided with magnet three and magnet four respectively, magnet three and magnet four are opposite in magnetism each other one side that is close to each other, under the effect of magnet three and magnet four for scraper blade 22 and drive plate 21 remove can be synchronous, can drive scraper blade 22 and slide when sliding drive plate 21, and scraper blade 22 can scrape down the cosmetics that adheres to on the body 2, makes it fall into the bottle bottom, reduces extravagant.

The liquid outlet component comprises a piston 33 fixedly arranged at the bottom of the movable tube 31, a reset piece arranged at the bottom of the piston 33, a first check valve 37 arranged at one side of the connecting sleeve 3 and a second check valve 38 arranged at the bottom of the connecting sleeve 3, wherein the first check valve 37 is hinged with the outer wall of the connecting sleeve 3, the second check valve 38 is hinged with the inner wall of the bottom of the connecting sleeve 3, and the second check valve 38 is positioned at the top of the liquid inlet tube 36. The piston 33 is propped against the inner wall of the connecting sleeve 3 and used for changing the air pressure in the connecting sleeve 3, the first check valve 37 and the second check valve 38 are made of rubber materials, and the first check valve 37 can only be opened outwards and the second check valve 38 can only be opened inwards due to the shielding of the outer shell of the connecting sleeve 3. The return piece includes the return spring 35 of installing in the piston 33 bottom, and the adapter sleeve 3 internally fixed installs baffle 34, and the bottom of the top of baffle 34 movable tube 31 is connected respectively at return spring 35's both ends, and drain pipe 32 passes baffle 34 and extends to the below of baffle 34, and return spring 35 overlaps the outside of establishing at drain pipe 32, through return spring 35's effect, loosens movable tube 31 after, can make movable tube 31 reset.

The drainage tube 41 is connected with the side wall of the connecting sleeve 3 in a sliding manner, one end of the drainage tube 41, which is far away from the accommodating tank 4, extends into the connecting sleeve 3 and abuts against the top of the second one-way valve 38, after the second one-way valve 38 is abutted against the drainage tube 41, the second one-way valve 38 cannot be opened, cosmetics can only be extracted from the accommodating tank 4, and the inner wall of the top of the second one-way valve 42 is hinged to the inner wall of the top of the accommodating tube and used for air exchange in the accommodating tank 4.

Connecting sleeve 3 one side fixedly connected with connecting plate 5, holding tank 4 demountable installation is on connecting plate 5, has seted up spout 51 on the connecting plate 5, and spout 51 sets up along the length direction of connecting plate 5. The bottom of the accommodating tank 4 is slidably arranged in the chute 51, a positioning groove 52 communicated with the outside of the connecting plate 5 is formed in the bottom of the chute 51, and the positioning groove 52 penetrates through two end surfaces of the connecting plate 5. The positioning groove 52 is internally provided with a positioning rod 53 in a sliding manner, the bottom of the accommodating tank 4 is provided with a clamping hole matched with the top of the positioning rod 53, and the bottom of the positioning rod 53 extends to the outside of the connecting plate 5; the positioning groove 52 is internally provided with a first return spring 54, the first return spring 54 is sleeved outside the positioning rod 53, the positioning rod 53 is externally provided with an annular plate, the annular plate is overlapped with the axis of the positioning rod 53, and two ends of the first return spring 54 are respectively connected with the annular plate and the inner wall of the end part of the positioning groove 52.

Under the effect of return spring one 54 for the tip of locating lever 53 enters into the card hole of holding jar 4 bottom, realizes holding jar 4's location, when needs dismantlement, through the structure of pulling locating lever 53, makes the tip and the card hole separation of locating lever 53, can hold jar 4's dismantlement. Meanwhile, a baffle plate 55 is fixedly arranged at the top of the connecting plate 5, a second return spring 56 is connected to the baffle plate 55, one end of the second return spring 56 is connected with the baffle plate 55, and the other end of the second return spring abuts against the accommodating tank 4. When dismantling, pull locating lever 53 outwards for locating lever 53 and card Kong Fenli, under the effect of reset spring two 56, make holding tank 4 outwards remove, conveniently carry out holding tank 4's dismantlement.

The bottle cap 1 and the bottle body 2 are detachably connected through a connecting piece, an annular rubber ring 11 is arranged at the bottom of the bottle cap 1, and the lower end face of the rubber ring 11 abuts against the top of the bottle body 2. The connecting piece includes connecting rod 14 of fixed mounting in bottle lid 1 bottom and shaping in the arc 15 of connecting rod 14 bottom, and body 2 top is provided with the spread groove 23 with connecting rod 14 tip complex, and the tip inner wall shaping of spread groove 23 has the arc 15 complex arc. The bottom of the bottle cap 1 is provided with a first magnet 12, the top of the bottle body 2 is provided with a second magnet 13, and the magnetism of one side, close to each other, of the first magnet 12 and the second magnet 13 is opposite. When the connecting rod 14 is sent into the connecting groove 23 during installation, the arc-shaped rod enters the arc-shaped groove by rotating the bottle cap 1, connection between the bottle cap 1 and the bottle body 2 is realized, and the connection is more stable under the cooperation of the magnet I12 and the magnet II 13. Similarly, when dismantling is needed, the arc-shaped plate 15 can be separated from the arc-shaped groove by increasing the force and reversely rotating, so that the bottle body 2 and the bottle cap 1 are conveniently separated, and the bottle cap is convenient to use.

The working principle of the embodiment is as follows, the structure of the bottle body 2 is used for containing cosmetics to be sold, the structure of the containing tank 4 is used for storing cosmetics for use, and the structures of the liquid outlet pipe 32 and the movable pipe 31 are used for realizing push type liquid outlet; when the cosmetic is required to be tried, the cosmetics to be sold in the bottle body 2 cannot be wasted by discharging the cosmetics to be tested in the accommodating tank 4 through the pipeline, and after the cosmetics are purchased, the cosmetics in the bottle body 2 are used, so that the cosmetics are not easy to waste.

During normal use, the accommodating tank 4 is arranged on one side of the connecting sleeve 3, the movable tube 31 is pressed to only extract test products in the accommodating tank 4, after purchase, the bottle body 2 and the bottle cap 1 can be separated, the accommodating tank 4 and the drainage tube 41 are taken down from the connecting sleeve 3, the position where the drainage tube 41 is originally arranged is sealed by using a rubber plug and the like, and then the bottle body 2 and the bottle cap 1 are connected together. When the movable tube 31 is pressed again, cosmetics for sale in the bottle body 2 are extracted, and the cosmetics are selected according to the situation, so that waste is reduced.

Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a PET cosmetic bottle, including body (2) and bottle lid (1), a serial communication port, body (2) and bottle lid (1) are dismantled and are connected, movable tube (31) is installed to movable on bottle lid (1), movable tube (31) bottom is located bottle lid (1) below, the top of movable tube (31) is located bottle lid (1) top, bottle lid (1) bottom is provided with adapter sleeve (3), movable tube (31) extend to in adapter sleeve (3), be provided with drain pipe (32) in movable tube (31), the top of drain pipe (32) extends to the outside of movable tube (31), be provided with out the liquid subassembly in adapter sleeve (3); the bottom of the connecting sleeve (3) is connected with a liquid inlet pipe (36), the connecting sleeve (3) is provided with a through hole and is connected with a drainage tube (41), one side of the connecting sleeve (3) is detachably provided with a containing tank (4) for containing cosmetics for use, and the drainage tube (41) is communicated with the containing tank (4); the liquid outlet component comprises a piston (33) arranged at the bottom of the movable pipe (31), a reset piece arranged at the bottom of the piston (33), a first check valve (37) arranged at one side of the connecting sleeve (3) and a second check valve (38) arranged at the bottom of the connecting sleeve (3), wherein the first check valve (37) is hinged with the outer wall of the connecting sleeve (3), the second check valve (38) is hinged with the inner wall of the bottom of the connecting sleeve (3), and the second check valve (38) is positioned at the top of the liquid inlet pipe (36); the return piece comprises a return spring (35) arranged at the bottom of the piston (33), a partition plate (34) is arranged in the connecting sleeve (3), two ends of the return spring (35) are respectively connected with the top of the partition plate (34) and the bottom of the movable pipe (31), the liquid outlet pipe (32) penetrates through the partition plate (34) and extends to the lower part of the partition plate (34), and the return spring (35) is sleeved outside the liquid outlet pipe (32); the drainage tube (41) is connected with the side wall of the connecting sleeve (3) in a sliding way, and one end of the drainage tube (41) away from the accommodating tank (4) extends into the connecting sleeve (3) and abuts against the top of the one-way valve II (38); a third one-way valve (42) is hinged on the inner wall of the top of the accommodating tank (4); one side of the connecting sleeve (3) is provided with a connecting plate (5), the accommodating tank (4) is detachably arranged on the connecting plate (5), the connecting plate (5) is provided with a sliding groove (51), the bottom of the accommodating tank (4) is slidably arranged in the sliding groove (51), the bottom of the sliding groove (51) is provided with a positioning groove (52) communicated with the outside, the positioning groove (52) is slidably provided with a positioning rod (53), the bottom of the accommodating tank (4) is provided with a clamping hole matched with the top of the positioning rod (53), and the bottom of the positioning rod (53) extends to the outside of the connecting plate (5); a first reset spring (54) is arranged in the positioning groove (52), the first reset spring (54) is sleeved outside the positioning rod (53), an annular plate is arranged outside the positioning rod (53), and two ends of the first reset spring (54) are respectively connected with the annular plate and the inner wall of the end part of the positioning groove (52); the top of the connecting plate (5) is provided with a baffle plate (55), the baffle plate (55) is provided with a second return spring (56), one end of the second return spring (56) is connected with the baffle plate (55), and the other end of the second return spring is propped against the accommodating tank (4).

2. The PET cosmetic bottle according to claim 1, wherein the bottom of the bottle cap (1) is provided with an annular rubber ring (11), and the lower end surface of the rubber ring (11) is propped against the top of the bottle body (2); the bottle cap (1) and the bottle body (2) are detachably connected through a connecting piece.

3. The PET cosmetic bottle according to claim 2, wherein the connecting piece comprises a connecting rod (14) arranged at the bottom of the bottle cap (1) and an arc-shaped plate (15) arranged at the bottom of the connecting rod (14), a connecting groove (23) matched with the end part of the connecting rod (14) is formed at the top of the bottle body (2), and an arc-shaped groove matched with the arc-shaped plate (15) is formed in the inner wall of the end part of the connecting groove (23); the bottom of the bottle cap (1) is provided with a first magnet (12), the top of the bottle body (2) is provided with a second magnet (13), and the magnetism of one side, close to each other, of the first magnet (12) and the second magnet (13) is opposite.

4. The PET cosmetic bottle according to claim 1, wherein an annular scraping plate (22) is arranged inside the bottle body (2), an annular driving plate (21) is arranged outside the bottle body (2), a magnet three and a magnet four are respectively arranged on one side, close to each other, of the scraping plate (22) and the driving plate (21), and magnetism of one side, close to each other, of the magnet three and the magnet four is opposite.