Liquid transfer device and cosmetic packaging container

Abstract

The utility model discloses a liquid moving and taking device and a cosmetic packaging container, the liquid moving and taking device comprises an inner cover, a liquid taking pipe, a piston, an outer cover rotatably sleeved on the outer side of the inner cover, a button fixedly connected with the piston and an elastic piece driving the button to move upwards, and a mounting cavity is formed between the outer cover and the inner cover. The outer cover is provided with a limiting surface which obliquely extends up and down; the button is provided with a first limiting piece; the inner cover is provided with a limiting groove extending in the circumferential direction, the outer cover is provided with a second limiting piece, and the limiting groove is provided with a first side wall and a second side wall which are arranged on the two sides respectively. When the second limiting piece abuts against the first side wall, the upper portion of the first limiting piece abuts against the lower end of the limiting face, and the button is contained in the installation cavity. When the second limiting piece abuts against the second side wall, the upper portion of the first limiting piece abuts against the upper end of the limiting face, at least part of the button stretches out of the installation cavity, and the liquid taking operation of the liquid transferring and taking device is simpler.

Description

TECHNICAL FIELD

[0001] The utility model relates to a liquid taking device and cosmetic packaging container. BACKGROUND

[0002] With the improvement of people's living standards, the use frequency of cosmetics is increasing, most of the existing liquid cosmetics, its packaging container usually includes liquid storage bottle and liquid taking device, when needing to use cosmetics, liquid taking device is taken off from liquid storage bottle first, then negative pressure is formed by extruding silica gel head or pressing button to suck cosmetics, the user is more cumbersome to operate, at the same time, due to the different degree of extrusion or pressing of the user each time, the volume of liquid sucked each time is also not fixed, too much suction will cause waste, and too little suction will increase the number of suction operation. SUMMARY

[0003] The utility model aims at providing a new liquid taking device.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of a liquid taking device, comprising:

[0005] The inner cover has a containing cavity, the lower part of the containing cavity is provided with a through hole, and the upper part of the inner cover is provided with a guide groove extending in the up-down direction.

[0006] The liquid taking pipe is fixedly connected with the inner cover, and the pipe cavity of the liquid taking pipe is communicated with the containing cavity through the through hole.

[0007] The piston is movably arranged in the containing cavity in the up-down direction, and the piston is sealed with the side wall of the containing cavity.

[0008] The outer cover is movably arranged on the outer side of the inner cover around the axis of the outer cover, the upper part of the outer cover and the upper part of the inner cover form an installation cavity, the upper part of the installation cavity is provided with an opening, the inner side of the outer cover is provided with a limiting surface facing downward, the limiting surface extends upwardly and downwardly, and the limiting surface is located above the guide groove.

[0009] The button is movably arranged in the installation cavity, the button is fixedly connected with the piston, the button is provided with a first limiting piece, the first limiting piece is movably inserted into the guide groove, and the upper part of the first limiting piece extends out of the guide groove and abuts against the limiting surface.

[0010] The elastic member is used for providing the action force required for driving the button to move upward.

[0011] One of the outer side of the inner cover and the inner side of the outer cover is provided with a limiting slot extending in the circumferential direction of the inner cover, and the other is provided with a second limiting piece inserted in the limiting slot, the limiting slot has first and second side walls respectively arranged on two sides in the circumferential direction of the inner cover; when the second limiting piece abuts against the first side wall, the upper part of the first limiting piece abuts against the lower end of the limiting surface, and the button is accommodated in the mounting cavity; when the second limiting piece abuts against the second side wall, the upper part of the first limiting piece abuts against the upper end of the limiting surface, and at least part of the button extends out of the mounting cavity from the opening.

[0012] In some embodiments, the upper part of the inner cover is provided with a surrounding plate, the surrounding plate is annular, the surrounding plate is annularly arranged on the outer side of the accommodating cavity in the circumferential direction, and an annular mounting slot is formed between the surrounding plate and the accommodating cavity, the slot opening of the mounting slot faces upward, and the guide slot is arranged on the inner side wall of the surrounding plate; the button has a pressing part and an extension part extending downward from the pressing part, the extension part is annular, the extension part is inserted in the mounting slot, and the first limiting piece extends outward from the outer side of the extension part.

[0013] In some embodiments, the outer cover has a cover body and a bent part, the cover body is sleeved on the outer side of the inner cover, the bent part extends inward and downward from the upper part of the cover body, the limiting surface is arranged on the bent part, and the lower part of the bent part abuts against the upper part of the inner cover.

[0014] In some embodiments, the bent part has a first bent section extending inward in the radial direction of the cover body and a second bent section extending downward from the first bent section; an outer recess is formed in the inner side wall of the second bent section, the upper side wall of the recess extends obliquely in the upward and downward directions, and the upper side wall of the recess constitutes the limiting surface; the first limiting piece has a first limiting part extending in the upward and downward directions and a second limiting part extending outward from the lower part of the first limiting part, when the first limiting part abuts against the upper end of the limiting surface, the second limiting part abuts against the bottom of the second bent section.

[0015] In some embodiments, the outer side of the inner cover is provided with an annular recess, the slot opening of the annular recess faces outward, and the inner side of the outer cover is provided with a connecting piece inserted in the annular recess.

[0016] In some embodiments, the outer side of the inner cover has a first convex ring and a second convex ring extending outwardly and convexly, the first convex ring and the second convex ring are arranged in a vertical direction, the first convex ring is above the second convex ring, and the annular groove is formed between the first convex ring and the second convex ring; the upper part of the first convex ring is provided with a first driving surface which extends downwardly and inclinedly from inside to outside, and the lower part of the connecting piece is provided with a second driving surface which extends downwardly and inclinedly from inside to outside.

[0017] In some embodiments, the button is provided with a connecting column, the piston has a connecting slot with a notch facing upward, and the connecting column is inserted into the connecting slot and is in interference connection with the slot wall of the connecting slot.

[0018] The utility model discloses a cosmetic packaging container.

[0019] To achieve the above object, the utility model adopts the technical scheme of a cosmetic packaging container, which comprises a liquid storage bottle and a liquid taking device as described above.

[0020] In some embodiments, the bottle opening of the liquid storage bottle is provided with a liquid scraper, and the liquid scraper comprises:

[0021] An abutting portion abutting against the top of the bottle opening;

[0022] A connecting portion extending into the liquid storage bottle, and the lower part of the connecting portion has a liquid leakage hole;

[0023] An annular scraper plate fixedly arranged at the lower end of the connecting portion, and the liquid taking pipe passes through the center hole of the annular scraper plate.

[0024] In some embodiments, the abutting portion is annular, the connecting portion is cylindrical, and the liquid leakage hole comprises a plurality of holes arranged in a circumferential direction.

[0025] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: In the liquid transfer device of this utility model, the button maintains the upward movement trend under the action of the elastic element, but the upward movement of the button is restricted by the cooperation between the limiting surface and the first limiting element. The cooperation between the guide groove and the first limiting element provides guidance for the up and down movement of the first limiting element, while preventing the button and the inner cover from rotating relative to each other. The outer cover of the liquid transfer device can rotate relative to the inner cover. When the second limiting member abuts against the first side wall of the limiting groove, the first limiting member abuts against the lower end of the limiting surface. The button is housed in the mounting cavity, and the piston is also located in the lower part of the receiving cavity. After rotating the outer cover, the second limiting member moves towards the second side wall of the limiting groove, and the upper part of the first limiting member slides in cooperation with the limiting surface, causing the button to move upward. The piston also moves upward and forms a negative pressure in the receiving cavity, allowing the liquid extraction tube to draw in the liquid. When the second limiting member abuts against the second side wall, the button and piston stop moving, and the liquid extraction tube stops drawing in the liquid. In this state, the button extends out of the mounting cavity, and the user can press the button to discharge the liquid in the liquid extraction tube. In this way, when using cosmetics, the liquid dispensing device can draw up the liquid cosmetics by rotating to disconnect the connection between the liquid dispensing device and the storage bottle. After removing the liquid dispensing device, the cosmetics can be dispensed directly by pressing the button, which is more convenient to use. Moreover, the amount of cosmetics dispensed each time is fixed, which can meet the user's needs and will not cause waste. Attached Figure Description

[0026] Appendix Figure 1 This is a schematic diagram of a cosmetic packaging container according to a specific embodiment of the present utility model;

[0027] Appendix Figure 2 This is an exploded view of a liquid transfer device according to a specific embodiment of the present invention;

[0028] Appendix Figure 3 This is an exploded view of a liquid storage bottle according to a specific embodiment of the present invention;

[0029] Appendix Figure 4 This is a longitudinal section diagram of Example 1;

[0030] Appendix Figure 5 For the appendix Figure 4 Enlarged view of point A in the middle;

[0031] Appendix Figure 6 For the appendix Figure 4 A schematic diagram of the second mode;

[0032] Appendix Figure 7 This is a schematic diagram of a portion of the liquid transfer device in this embodiment;

[0033] Appendix Figure 8 For the attachedFigure 7 a longitudinal sectional view of the outer cover of the embodiment;

[0034] Fig. 2 is a perspective view of the inner cover of the embodiment; Figure 9 Fig. 3 is a longitudinal sectional view of the inner cover of the embodiment;

[0035] Fig. 4 is a perspective view of the outer cover of the embodiment; Figure 10

[0036] Fig. 5 is a longitudinal sectional view of the outer cover of the embodiment; Figure 11 Fig. 6 is a perspective view of the inner cover of the embodiment;

[0037] Wherein: 1, inner cover; 11, accommodating cavity; 111, annular partition plate; 12, through hole; 13, limiting groove; 131, first side wall; 132, second side wall; 14, surrounding plate; 141, guide groove; 15, mounting groove; 151, middle partition plate; 152, fixed column; 16, annular groove; 17, first protruding ring; 171, first driving surface; 18, second protruding ring; 19, internal thread; 2, outer cover; 21, mounting cavity; 22, limiting surface; 23, second limiting piece; 24, cover main body; 25, bending part; 251, first bending section; 252, second bending section; 253, groove; 26, connecting piece; 261, second driving surface; 3, liquid taking pipe; 31, pipe cavity; 4, piston; 41, connecting groove; 5, button; 51, first limiting piece; 511, first limiting part; 512, second limiting part; 52, pressing part; 53, extension part; 54, connecting column; 6, elastic piece; 7, gasket; 10, liquid storage bottle; 110, external thread; 20, liquid scraper; 210, abutting part; 220, connecting part; 230, annular scraper plate; 201, liquid leakage hole. DETAILED DESCRIPTION

[0038] The technical solutions of the present application will be described in detail below with reference to the drawings and specific embodiments, so that the advantages and features of the present application can be more easily understood by those skilled in the art. Obviously, the embodiments described in the present application are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] The following description of up, down, left, right, front, back, inside and outside, etc. related to the orientation is defined with reference to the orientation observed by the user when the cosmetic packaging container is normally placed, and the purpose is only to clearly describe the relative position relationship of the cosmetic packaging container.

[0040] Referring to Figure 1 ​A cosmetic packaging container is shown, which comprises a liquid storage bottle 10 and a liquid taking device, liquid cosmetic is stored in the liquid storage bottle 10, and the liquid taking device can be used to suck the cosmetic in the liquid storage bottle 10. Referring to Figure 2 As shown, the liquid taking device comprises an inner cover 1, an outer cover 2, a liquid taking pipe 3, a piston 4, a button 5 and an elastic member 6, wherein the inner cover 1 has a containing cavity 11, the lower part of the containing cavity 11 is provided with a through hole 12; the outer cover 2 is rotatably sleeved on the outer side of the inner cover 1 about the axis line of the outer cover 2, the upper part of the outer cover 2 and the upper part of the inner cover 1 form an installation cavity 21, and the upper part of the installation cavity 21 is provided with an opening. The liquid taking pipe 3 is fixedly connected with the inner cover 1, and the lumen 31 of the liquid taking pipe 3 is communicated with the containing cavity 11 through the through hole 12. The piston 4 is movably arranged in the containing cavity 11 in the up-down direction, and the piston 4 is sealed with the side wall of the containing cavity 11. The button 5 is movably arranged in the installation cavity 21, and the button 5 is fixedly connected with the piston 4. By driving the piston 4 to move upward through the button 5, a vacuum negative pressure can be formed in the containing cavity 11, so that the liquid cosmetic can be sucked into the liquid taking pipe 3. By pressing the button 5 downward and driving the piston 4 to move downward, the cosmetic in the liquid taking pipe 3 can be discharged.

[0041] The elastic member 6 is used to provide the action force required for driving the button 5 to move upward. In the embodiment, the inner side of the outer cover 2 is provided with a limiting face 22 facing downward, the limiting face 22 extends obliquely from bottom to top, the button 5 is provided with a first limiting member 51, specifically, the first limiting member 51 extends outwardly from the outer side of the button 5, under the action of the elastic member 6, the upper part of the first limiting member 51 abuts against the limiting face 22, through the cooperation between the limiting face 22 and the first limiting member 51, the upward movement of the button 5 can be limited.

[0042] In the embodiment, one of the outer side of the inner cover 1 and the inner side of the outer cover 2 is provided with a limiting groove 13 extending along the circumference of the inner cover 1, and the other is provided with a second limiting member 23, the second limiting member 23 is inserted in the limiting groove 13, and the limiting groove 13 has a first side wall 131 and a second side wall 132 separately arranged on both sides along the circumference of the inner cover 1. When the second limiting member 23 does not abut against the first side wall 131 and the second side wall 132, the outer cover 2 can rotate relative to the inner cover 1, and when the second limiting member 23 abuts against the first side wall 131 or the second side wall 132, rotating the outer cover 2 will drive the inner cover 1 to move.

[0043] In the embodiment, when the second limiting member 23 abuts against the first side wall 131, the upper part of the first limiting member 51 abuts against the lower end of the limiting face 22, referring to Figure 4As shown, at this time, the button 5 is accommodated in the mounting cavity 21, and the top of the button 5 is flush with the top of the outer cover 2. In this state, the piston 4 is located in the lower part of the accommodating cavity 11, the liquid taking device cannot suck the liquid, and the user cannot press the button 5. By rotating the outer cover 2, the outer cover 2 is relatively rotated with the inner cover 1, in this process, the upper part of the first limiting piece 51 is relatively slid with the limiting surface 22, and the button 5 is gradually moved upward under the driving of the elastic piece 6, the piston 4 is also moved upward, and the negative pressure is gradually formed in the accommodating cavity 11, and the liquid taking tube 3 can suck the liquid. When the second limiting piece 23 abuts against the second side wall 132, the upper part of the first limiting piece 51 abuts against the upper end of the limiting surface 22, the button 5 moves to the limit position, and the piston 4 cannot continue to move upward, and the liquid taking tube 3 ends the sucking of the liquid. In this state, at least part of the button 5 protrudes upwardly from the mounting cavity 21, and specifically, see Figure 6 As shown, at least part of the button 5 protrudes above the outer cover 2, and the user can press the button 5 and discharge the liquid in the liquid taking tube 3.

[0044] In this embodiment, see Figure 9 、 Figure 10 As shown, the limiting groove 13 is arranged on the outer side of the inner cover 1, and the second limiting piece 23 protrudes inwardly from the inner side wall of the outer cover 2. In this embodiment, the axis of the inner cover 1 and the outer cover 2 is co-linearly extended, the projection of the limiting groove 13 on the horizontal plane is a circular arc, and specifically, the projection of the limiting groove 13 on the horizontal plane is a circular arc with the projection point of the axis of the inner cover 1 as the center, and the central angle of the circular arc is 90 degrees, so that the outer cover 2 is rotated by 90 degrees, and the second limiting piece 23 can move from the first side wall 131 to the second side wall 132. In this embodiment, the limiting groove 13 includes two limiting grooves which are arranged at intervals in the circumferential direction of the inner cover 1, and the second limiting piece 23 also includes two second limiting pieces which are arranged at intervals in the circumferential direction of the outer cover 2. In other embodiments, the central angle of the limiting groove 13 can be adjusted according to requirements, and the number of the limiting groove 13 and the second limiting piece 23 can also be adjusted according to requirements.

[0045] In this embodiment, the upper part of the inner cover 1 is provided with a guide groove 141 in the up-down direction, the guide groove 141 is located on the circumferential outer side of the button 5, the limiting surface 22 is located above the guide groove 141, the first limiting piece 51 is movably inserted into the guide groove 141, and the upper part of the first limiting piece 51 protrudes out of the guide groove 141 and abuts against the limiting surface 22. The guide groove 141 provides a guide for the up-down movement of the first limiting piece 51, and the cooperation between the first limiting piece 51 and the guide groove 141 can prevent the relative rotation between the button 5 and the inner cover 1. Specifically, see Figure 10 、 Figure 11As shown in the figure, the upper part of the inner cover 1 is provided with a surrounding plate 14 extending in the up-down direction, a guide groove 141 is arranged on the inner side wall of the surrounding plate 14, and the guide groove 141 extends upward to the top end of the surrounding plate 14. In this embodiment, the surrounding plate 14 is annular, the surrounding plate 14 is annularly arranged on the circumferential outer side of the accommodating cavity 11, and an annular mounting groove 15 is formed between the surrounding plate 14 and the accommodating cavity 11. An annular partition plate 111 is formed between the accommodating cavity 11 and the mounting groove 15, and the slot opening of the mounting groove 15 faces upward. In this embodiment, the button 5 has a pressing portion 52 and an extension portion 53 extending downward from the pressing portion 52, the extension portion 53 is annular, the extension portion 53 is inserted into the mounting groove 15, and the first limiting piece 51 protrudes outward from the outer side of the extension portion 53.

[0046] In this embodiment, the outer cover 2 has a cover body 24 and a bent portion 25, the cover body 24 is sleeved on the outer side of the inner cover 1, the bent portion 25 is bent and extends inward and downward from the upper part of the cover body 24, the limiting surface 22 is arranged on the bent portion 25, and the lower part of the bent portion 25 abuts against the upper part of the inner cover 1. Specifically, referring to Figure 4 、 Figure 5 As shown in the figure, the lower part of the bent portion 25 abuts against the top part of the surrounding plate 14, and the relative movement of the inner cover 1 and the outer cover 2 in the up-down direction can be limited by the cooperation of the two. During the assembly of the liquid taking device, the bent portion 25 and the surrounding plate 14 can also play a role in positioning between the inner cover 1 and the outer cover 2.

[0047] In this embodiment, referring to Figure 9 As shown in the figure, the bent portion 25 has a first bent section 251 extending inward in the radial direction of the cover body 24, and a second bent section 252 extending downward from the first bent section 251, an outwardly recessed groove 253 is formed in the inner side wall of the second bent section 252, the upper side wall of the groove 253 extends obliquely in the up-down direction, and the upper side wall of the groove 253 constitutes the limiting surface 22.

[0048] In this embodiment, referring to Figure 8 As shown in the figure, the first limiting piece 51 has a first limiting portion 511 extending in the up-down direction, and a second limiting portion 512 protruding outward from the lower part of the first limiting portion 511, when the first limiting portion 511 abuts against the upper end part of the limiting surface 22, the second limiting portion 512 abuts against the bottom part of the second bent section 252. The second limiting portion 512 and the bent portion 25 also play a role in preventing the upward movement of the button 5 by cooperating with each other, so as to avoid the upward movement of the button 5 beyond the range under the driving of the elastic member 6.

[0049] In this embodiment, the elastic member 6 is a spring, and the elastic member 6 is arranged between the inner cover 1 and the button 5. Specifically, referring to Figure 11As shown, the middle part of the inner cover 1 is provided with a middle partition plate 151, the annular partition plate 111 is fixedly arranged on the upper part of the middle partition plate 151, the annular partition plate 111 and the middle partition plate 151 form the accommodating cavity 11, the annular partition plate 111, the surrounding plate 14 and the middle partition plate 151 form the mounting groove 15, the middle partition plate 151, the surrounding plate 14 and the bending part 25 form the mounting cavity 21, and the through hole 12 is arranged on the middle partition plate 151. As shown in Figure 4 、 Figure 6 As shown, the elastic member 6 is arranged between the middle partition plate 151 and the button 5.

[0050] In the embodiment, the liquid taking pipe 3 is fixedly connected with the middle partition plate 151. Specifically, the lower part of the middle partition plate 151 is fixedly provided with a fixed column 152 extending downward, the fixed column 152 has a hollow cavity penetrating in the up-down direction, the hollow cavity is communicated with the through hole 12, the fixed column 152 is inserted into the pipe cavity 31 of the liquid taking pipe 3, and the fixed column 152 is in interference connection with the liquid taking pipe 3.

[0051] In the embodiment, the outer side part of the inner cover 1 is provided with an annular groove 16, the groove opening of the annular groove 16 faces outward, the inner side part of the outer cover 2 is provided with a connecting member 26, and the connecting member 26 is slidingly and fitly inserted into the annular groove 16. Through the mutual cooperation between the connecting member 26 and the annular groove 16, the relative rotation between the outer cover 2 and the inner cover 1 is guided, and at the same time, the relative movement between the inner cover 1 and the outer cover 2 in the up-down direction is limited. Under the joint action of the connecting member 26 and the annular groove 16, the second limiting part 512 and the bending part 25, the stability of the inner cover 1 and the outer cover 2 in the up-down direction is maintained.

[0052] As shown in Figure 5 In the embodiment, the outer side part of the inner cover 1 has a first convex ring 17 and a second convex ring 18 extending outward, the first convex ring 17 and the second convex ring 18 are arranged in the up-down direction, the first convex ring 17 is located above the second convex ring 18, and the annular groove 16 is formed between the first convex ring 17 and the second convex ring 18. The connecting member 26 is an arc-shaped convex rib extending around the axis of the outer cover 2. Specifically, the connecting member 26 is a circular arc, and the connecting member 26 includes a plurality of.

[0053] In the embodiment, as shown in Figure 5 The upper part of the first convex ring 17 is provided with a first driving surface 171, the first driving surface 171 extends downward from inside to outside and downwardly, the lower part of the connecting member 26 is provided with a second driving surface 261, and the second driving surface 261 extends downward from inside to outside and downwardly.

[0054] When assembling the liquid transfer device, first fix the button 5 and the connecting post 54 together, then assemble the piston 4 into the receiving cavity 11, and insert the extension 53 of the button 5 into the annular mounting groove 15, so that the first limiting member 51 is correspondingly inserted into the guide groove 141. During the assembly of the button 5, piston 4 and inner cover 1, the elastic member 6 is installed between the intermediate partition 151 and the button 5. After the assembly of the button 5, piston 4 and inner cover 1 is completed, the outer cover 2 is fitted onto the outside of the inner cover 1 from top to bottom. During this process, the second driving surface 261 and the first driving surface 171 cooperate and slide, so that the connecting member 26 passes over the first protruding ring 17 and enters the annular groove 16. When the connecting member 26 is inserted into the annular groove 16, the lower part of the second bent section 252 abuts against the upper part of the surrounding plate 14, and the assembly of the liquid transfer device is completed.

[0055] In this embodiment, the button 5 is provided with a connecting post 54, and the piston 4 has a connecting groove 41 with the opening facing upward. The connecting post 54 is inserted into the connecting groove 41, and the connecting post 54 is interference-fitted with the groove wall of the connecting groove 41. In this embodiment, the upper part of both the guide groove 141 and the limiting groove 13 has a wide opening design, which facilitates the insertion of the second limiting member 23 into the limiting groove 13, and also facilitates the insertion of the first limiting member 51 into the guide groove 141.

[0056] In this embodiment, the inner wall of the lower part of the inner cover 1 is provided with an internal thread 19, and the outer wall of the bottle mouth of the liquid storage bottle 10 is provided with an external thread 110. The inner cover 1 is threadedly connected to the liquid storage bottle 10. When the cosmetic packaging container is not in use, see [reference needed]. Figure 1 , Figure 4 As shown, the liquid extraction tube 3 is inserted into the liquid storage bottle 10, the second limiting member 23 abuts against the first side wall 131, and the button 5 is housed in the mounting cavity 21.

[0057] When cosmetics are needed, rotate the outer cap 2 in one direction. The outer cap 2 will rotate relative to the inner cap 1. During this process, the second limiting member 23 moves towards the second side wall 132, and the button 5 moves upward, allowing the dispensing tube 3 to draw in the cosmetics. When the second limiting member 23 abuts against the second side wall 132, the dispensing tube 3 completes the absorption of the cosmetics, and the button 5 also moves to its limit position. Continue rotating the outer cap 2, which will cause the inner cap 1 to rotate together, thereby disengaging the threaded connection between the inner cap 1 and the storage bottle 10. After the inner cap 1 is disengaged from the storage bottle 10, the dispensing tube 3 can be pulled out of the storage bottle 10. Pressing the button 5 will dispense the cosmetics from the dispensing tube 3. If more cosmetics are needed, simply press button 5 and insert the dispensing tube 3 into the storage bottle 10. Once the dispensing tube 3 is submerged in the cosmetics, release button 5. Driven by the elastic element 6, button 5 moves piston 4 and creates negative pressure in the accommodating cavity 11, thereby drawing the cosmetics into the dispensing tube 3.

[0058] After using the cosmetic, insert the dispensing tube 3 into the storage bottle 10, so that the inner cap 1 covers the mouth of the storage bottle 10. Then, rotate the outer cap 2 in the opposite direction. Due to the friction between the inner cap 1 and the outer cap 2, the outer cap 2 will first drive the inner cap 1 to rotate, thereby connecting the inner thread 19 and the outer thread 110. When the resistance between the inner thread 19 and the outer thread 110 is greater than the friction between the inner cap 1 and the outer cap 2, the outer cap 2 and the inner cap 1 will rotate relative to each other. The second limiting member 23 moves from the second side wall 132 to the first side wall 131, and the button 5 and the piston 4 move downward together, expelling the air from the dispensing tube 3. After the second limiting member 23 abuts against the first side wall 131, the button 5 is received into the mounting cavity 21. Continuing to rotate the outer cap 2 will drive the inner cap 1 to rotate together, and continue to complete the threaded connection between the inner cap 1 and the storage bottle 10.

[0059] In this embodiment, see Figure 3 , Figure 4 As shown, a scraper 20 is fixedly installed at the mouth of the liquid storage bottle 10. The scraper 20 includes a stop portion 210, a connecting portion 220, and an annular scraper 230. The stop portion 210 abuts against the top of the bottle mouth, the connecting portion 220 extends into the liquid storage bottle 10, and the lower part of the connecting portion 220 has a leakage hole 201. The annular scraper 230 is fixed at the lower end of the connecting portion 220, and the liquid extraction tube 3 passes through the central hole of the annular scraper 230. In this embodiment, the stop portion 210 is annular, the connecting portion 220 is cylindrical, and the leakage holes 201 include a plurality of holes spaced apart circumferentially along the connecting portion 220. During the upward pulling of the liquid extraction tube 3, the annular scraper 230 can scrape off the cosmetic adhering to the outer peripheral wall of the liquid extraction tube 3, and the leakage holes 201 facilitate the downward flow of cosmetic above the annular scraper 230 back into the liquid storage bottle 10.

[0060] In this embodiment, the liquid transfer device further includes a gasket 7, which is fixed between the top of the liquid transfer tube 3 and the intermediate partition 151. When the liquid transfer device is fixed on the storage bottle 10, the bottle opening of the storage bottle 10 abuts against the gasket 7. The gasket 7 provides cushioning between the inner cap 1 and the bottle opening of the storage bottle 10, and also improves the sealing effect between them. Specifically, see... Figure 4 As shown, when the liquid transfer device is fixed on the storage bottle 10, the abutment part 210 of the scraper 20 abuts against the gasket 7.

[0061] In summary, the liquid taking device of the embodiment keeps the button 5 moving upward under the action of the elastic member 6, but limits the upward movement of the button 5 under the cooperation of the limiting surface 22 and the first limiting member 51. The outer cover 2 of the liquid taking device can rotate relative to the inner cover 1. When the second limiting member 23 abuts against the first side wall 131 of the limiting groove 13, the first limiting member 51 abuts against the lower end of the limiting surface 22, the button 5 is accommodated in the mounting cavity 21, and the piston 4 is located in the lower part of the accommodating cavity 11. After rotating the outer cover 2, the second limiting member 23 moves toward the second side wall 132 of the limiting groove 13, the upper part of the first limiting member 51 cooperates with the limiting surface 22 to slide, so that the button 5 moves upward, the piston 4 also moves upward and forms negative pressure in the accommodating cavity 11, and the liquid taking pipe 3 can suck liquid. When the second limiting member 23 abuts against the second side wall 132, the button 5 and the piston 4 stop moving, and the liquid taking pipe 3 stops sucking liquid. In this state, the button 5 protrudes out of the mounting cavity 21, and the user can press the button 5 to discharge the liquid in the liquid taking pipe 3. In this way, when the cosmetic is used, the liquid taking device can suck the liquid cosmetic in the liquid storage bottle 10 in the process of releasing the threaded connection between the liquid taking device and the liquid storage bottle 10 by rotating. After the liquid taking device is removed, the button 5 can be directly pressed to discharge the cosmetic, which is more convenient to use. In addition, the amount of cosmetic taken out each time is fixed by this method, which can meet the needs of users and will not cause waste.

[0062] The above embodiment is only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A liquid transfer device, characterized by: The utility model provides a liquid taking device, which comprises: an inner cover having a receiving cavity, a through hole being arranged in a lower part of the receiving cavity, and a guide groove extending in an up-down direction being arranged in an upper part of the inner cover; a liquid taking tube fixedly connected with the inner cover, a tube cavity of the liquid taking tube being communicated with the receiving cavity through the through hole; a piston movably arranged in the receiving cavity in the up-down direction, the piston being sealed with a side wall of the receiving cavity; an outer cover rotatably sleeved on an outer side of the inner cover about an axis of the outer cover, an installation cavity being formed between an upper part of the outer cover and an upper part of the inner cover, an opening being arranged in an upper part of the installation cavity, a limiting surface facing downward being arranged on an inner side of the outer cover, the limiting surface extending obliquely from bottom to top, and the limiting surface being arranged above the guide groove; a button movably arranged in the installation cavity, the button being fixedly connected with the piston, the button being provided with a first limiting piece, the first limiting piece being movably inserted into the guide groove, and an upper part of the first limiting piece extending out of the guide groove and abutting against the limiting surface; a resilient piece for providing a force required for driving the button to move upward; one of an outer side of the inner cover and an inner side of the outer cover is provided with a limiting groove extending in a circumferential direction of the inner cover, the other one is provided with a second limiting piece inserted into the limiting groove, the limiting groove has a first side wall and a second side wall arranged on two sides in the circumferential direction of the inner cover; when the second limiting piece abuts against the first side wall, the upper part of the first limiting piece abuts against a lower end of the limiting surface, and the button is accommodated in the installation cavity; when the second limiting piece abuts against the second side wall, the upper part of the first limiting piece abuts against an upper end of the limiting surface, and at least part of the button extends out of the installation cavity through the opening.

2. The liquid transfer device of claim 1, wherein: an upper part of the inner cover is provided with a surrounding plate, the surrounding plate is annular, the surrounding plate is annularly arranged on an outer side in a circumferential direction of the receiving cavity, an annular installation groove is formed between the surrounding plate and the receiving cavity, an opening of the installation groove faces upward, and the guide groove is arranged on an inner side wall of the surrounding plate; the button has a pressing part and an extension part extending downward from the pressing part, the extension part is annular, the extension part is inserted into the installation groove, and the first limiting piece extends outward from an outer side of the extension part.

3. The liquid transfer device of claim 1, wherein: the outer cover has a cover main body and a bent part, the cover main body is sleeved on an outer side of the inner cover, the bent part extends inward and downward from an upper part of the cover main body, the limiting surface is arranged on the bent part, and a lower part of the bent part abuts against the upper part of the inner cover.

4. The liquid transfer device of claim 3, wherein: the bent part has a first bent section extending inward in a radial direction of the cover main body and a second bent section extending downward from the first bent section; an inner side wall of the second bent section is provided with a recess recessed outward, an upper side wall of the recess extends obliquely in the up-down direction, and the upper side wall of the recess constitutes the limiting surface. The first limiting member has a first limiting part extending along the up-down direction, and a second limiting part extending outwardly from the lower part of the first limiting part, when the first limiting part abuts against the upper end of the limiting surface, the second limiting part abuts against the bottom of the second bending section.

5. The liquid transfer device of claim 1, wherein: The outer side of the inner cover is provided with an annular groove, the groove opening of the annular groove faces outward, the inner side of the outer cover is provided with a connecting piece, the connecting piece is inserted in the annular groove.

6. The liquid transfer device of claim 5, wherein: The outer side of the inner cover has a first convex ring and a second convex ring extending outwardly, the first convex ring and the second convex ring are arranged in the up-down direction, the first convex ring is above the second convex ring, and the annular groove is formed between the first convex ring and the second convex ring. The upper part of the first convex ring is provided with a first driving surface, the first driving surface extends downwardly from inside to outside, the lower part of the connecting piece is provided with a second driving surface, and the second driving surface extends downwardly from inside to outside.

7. The liquid transfer device of claim 1, wherein: The button is provided with a connecting column, the piston has a connecting groove with a groove opening facing upward, the connecting column is inserted in the connecting groove, and the connecting column and the groove wall of the connecting groove are in interference connection.

8. A cosmetic packaging container comprising a liquid storage bottle, characterized by: The liquid taking device as claimed in any one of claims 1 to 7 is also included, the liquid taking tube is inserted in the liquid storage bottle, the inner side wall of the lower part of the inner cover is provided with an inner thread, the outer side wall of the bottle opening of the liquid storage bottle is provided with an outer thread, and the inner cover and the liquid storage bottle are in threaded connection.

9. The cosmetic packaging container of claim 8, wherein: The bottle opening of the liquid storage bottle is provided with a liquid scraper, the liquid scraper comprises: an abutting part abutting against the top of the bottle opening; a connecting part extending into the liquid storage bottle, the lower part of the connecting part has a liquid leakage hole; an annular scraper plate fixedly arranged at the lower end of the connecting part, and the liquid taking tube passes through the center hole of the annular scraper plate.

10. The cosmetic packaging container according to claim 9, characterized in that: The abutting part is annular, the connecting part is cylindrical, and the liquid leakage hole comprises a plurality of liquid leakage holes arranged in the circumferential direction of the connecting part.

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