Liquid dispensing device and cosmetic packaging container

Abstract

The application discloses a liquid taking device and a cosmetic packaging container. The liquid taking device comprises an inner cover, a dropper, a piston, a button, an elastic member, a middle cover and an outer cover. The piston is slidingly fitted on the upper part of the inner cover with a cavity. The button is fixedly connected with the piston. The elastic member is arranged between the button and the inner cover. The dropper is fixedly installed on the lower part of the inner cover. The middle cover is sleeved on the outer side of the inner cover and can rotate relative to the axis of the middle cover and can slide relative to the upper and lower directions. The outer cover is sleeved on the outer side of the middle cover and the inner cover, is rotatably connected with the inner cover and is slidably connected with the middle cover in the upper and lower directions. One of the middle cover and the inner cover is provided with a guide groove spirally rising around the axis of the inner cover, and the other is provided with a guide part slidingly fitted in the guide groove. The liquid taking device is convenient to operate and can quantitatively suck liquid.

Description

TECHNICAL FIELD

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

[0002] The existing liquid taking device installed on the container needs to be taken off from the container first when in use, and then the silica gel head needs to be squeezed or the pressing part above the dropper needs to be pressed to discharge air to form negative pressure, and then the liquid can be sucked. The operation of the user is relatively cumbersome, and the volume of the liquid sucked each time is not fixed due to the different degrees of squeezing or pressing of the user each time, too much liquid sucked will cause waste, and too little liquid sucked will increase the number of suction operations. SUMMARY

[0003] The purpose of the present application is to provide a new liquid taking device.

[0004] In order to achieve the above purpose, the technical scheme adopted by the present application is: a liquid taking device, the liquid taking device comprises:

[0005] an inner cover, the upper part of the inner cover has a cavity;

[0006] a dropper, the dropper extends in the up-down direction, the dropper is fixedly installed at the lower part of the inner cover, and the lumen of the dropper and the cavity are in communication with each other;

[0007] a piston, the piston is slidingly fitted in the cavity, the outer side wall of the piston is sealingly connected with the inner side wall of the cavity;

[0008] a button, the button is slidingly fitted in the upper part of the inner cover in the up-down direction, the button is fixedly connected with the piston;

[0009] a resilient member, the resilient member can provide the required force for the button to move upward away from the inner cover;

[0010] a middle cover, the middle cover is sleeved on the outer side of the inner cover and can rotate relative to the axis of the middle cover and can slide relative to the inner cover in the up-down direction;

[0011] an outer cover, the outer cover is sleeved on the outer side of the middle cover and the inner cover, the outer cover is connected with the inner cover only by rotating relative to the axis of the outer cover, and the outer cover is connected with the middle cover only by sliding relative to the middle cover in the up-down direction, the upper part of the button can be exposed from the upper part of the outer cover,

[0012] One of the inner side circumferential surface of the middle cover and the outer side circumferential surface of the inner cover is provided with a guide groove spirally rising around the axis of the inner cover, and the other is provided with a guide portion inserted in the guide groove in sliding fit.

[0013] Preferably, the guide groove is provided on the outer side circumferential surface of the inner cover, and the guide portion is a guide column extending radially inwardly from the inner wall of the middle cover, which is inserted in the guide groove in sliding fit.

[0014] Further, the guide groove has a first end portion and a second end portion respectively arranged at different ends in the length direction of the guide groove, the first end portion is higher than the second end portion, during the movement of the guide column from the first end portion to the second end portion, the piston moves downward along the cavity so that the liquid taking device discharges liquid; during the movement of the guide column from the second end portion to the first end portion, the piston moves upward along the cavity so that the liquid taking device sucks liquid, and during the sliding of the guide column along the guide groove between the first end portion and the second end portion, the elastic member is always in elongation.

[0015] Preferably, during the sliding of the guide column along the guide groove from one end to the other end, the angle of rotation of the outer cover and the middle cover relative to the inner cover is less than 180°, wherein the lower part of the inner cover is provided with a protrusion extending radially outwardly, the inner side circumferential surface of the outer cover is provided with an arc-shaped groove, and the protrusion can be inserted in the arc-shaped groove in sliding fit, wherein the arc of the arc-shaped groove is less than 180°.

[0016] Preferably, the elastic member is a plastic member, and the elastic member is integrally formed in the lower part of the button.

[0017] Further, the elastic member includes a connecting ring sleeved on the outer side circumferential surface of the inner cover, and a plurality of elastic strips connected between the connecting ring and the button, all the elastic strips extend spirally in the up-down direction with the axis of the button as the rotation center line.

[0018] Preferably, a guide limiting structure for limiting the relative rotation and providing the relative sliding in the up-down direction between the outer wall of the middle cover and the inner wall of the outer cover is arranged between the outer wall of the middle cover and the inner wall of the outer cover, the guide limiting structure includes a vertical groove and a protruding column which extend in the up-down direction and are in sliding fit, and the vertical groove and the protruding column are respectively arranged on the outer wall of the middle cover and the inner wall of the outer cover.

[0019] Preferably, the inner cover has an upper cover and a lower cover connected in the vertical direction. The cavity is disposed on the upper cover. A connecting post extending in the vertical direction is fixedly disposed in the lower cover. A through hole extending in the vertical direction is opened on the connecting post. The upper part of the dropper is fixedly connected to the connecting post. The lumen of the dropper is connected to the cavity through the through hole.

[0020] Furthermore, the inner wall of the middle cover is provided with an annular boss extending radially inward, the elastic element is sleeved on the outside of the upper cover and abuts against the annular boss downward, and a limiting platform is also formed between the upper cover and the lower cover to limit the downward movement of the annular boss; the lower cover is connected in cooperation with the middle cover and the outer cover.

[0021] Another object of the present invention is to provide a cosmetic container.

[0022] To achieve the above objectives, the technical solution of the present invention is: a cosmetic packaging container, including a liquid storage bottle and the above-mentioned liquid transfer device, wherein the dropper is inserted into the liquid storage bottle and the inner cap is threadedly connected to the liquid storage bottle.

[0023] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: In the liquid transfer device of the present invention, a guide groove spiraling upward around the axis of the inner cover and a guide part slidably inserted in the guide groove are provided between the middle cover and the inner cover. At the same time, the outer cover can only be connected to the inner cover in a rotatable manner relative to the inner cover around its own axis, and the outer cover can only be connected to the middle cover in a slidable manner relative to the middle cover in the up and down direction. This allows the rotation of the outer cover to drive the middle cover to rotate relative to the inner cover. At the same time, the middle cover can move upward along the axial direction. Furthermore, the middle cover can drive the button to move upward through the elastic element, and the button drives the piston to move upward, realizing the automatic completion of liquid absorption during the rotation of the outer cover. Attached Figure Description

[0024] Appendix Figure 1 This is a three-dimensional structural schematic diagram of a liquid transfer device according to a specific embodiment of the present invention;

[0025] Appendix Figure 2 For the appendix Figure 1 A longitudinal section diagram;

[0026] Appendix Figure 3 This is a schematic diagram of the three-dimensional structure of the outer cover;

[0027] Appendix Figure 4 For the appendix Figure 1 A three-dimensional structural diagram of the liquid transfer device after removing the outer cover;

[0028] Appendix Figure 5It is a schematic diagram of the perspective structure of the middle cover;

[0029] The Figure 6 It is a schematic diagram of the perspective structure of the middle cover; Figure 4 It is a schematic diagram of the perspective structure after removing the middle cover;

[0030] The Figure 7 It is a schematic diagram of the perspective structure of the cosmetic packaging container of one specific embodiment of the present application;

[0031] The Figure 8 It is a schematic diagram of the perspective structure of the middle cover; Figure 7 It is a schematic diagram of the longitudinal section of the middle cover;

[0032] Wherein: 100, liquid taking device; 200, liquid storage bottle;

[0033] 1, inner cover; 11, upper cover body; 111, cavity; 12, lower cover body; 121, guide groove; 121a, first end; 121b, second end; 122, protrusion; 123, connecting column; 123a, through hole; 13, limiting table; 2, dropper; 21, tube cavity; 3, piston; 4, button; 41, first flange; 5, elastic piece; 51, connecting ring; 52, elastic strip; 6, middle cover; 61, guide column; 62, vertical groove; 63, annular boss; 64, second flange; 7, outer cover; 71, arc-shaped groove; 72, protruding column. DETAILED DESCRIPTION

[0034] The technical solutions of the present application will be described in detail below in combination with the drawings and specific embodiments, so that the advantages and features of the present application are easier for those skilled in the art to understand.

[0035] Referring to Figure 1 A liquid taking device 100 is shown, which comprises an inner cover 1, a dropper 2, a piston 3, a button 4, an elastic piece 5, a middle cover 6, and an outer cover 7. The upper part of the inner cover 1 has a cavity 111. The dropper 2 extends in the up-down direction, is fixedly installed at the lower part of the inner cover 1, and the tube cavity 21 of the dropper 2 and the cavity 111 are in communication with each other. The piston 3 is slidingly fitted in the cavity 111, and the outer side wall of the piston 3 is sealingly connected with the inner side wall of the cavity 111. The button 4 is slidingly fitted in the upper part of the inner cover 1 in the up-down direction, and the button 4 is fixedly connected with the piston 3. The elastic piece 5 can provide the required force for the button 4 to move upward away from the inner cover 1. The middle cover 6 can be sleeved on the outer side of the inner cover 1 in a way that it can rotate relative to the axis of itself and slide relative to the inner cover 1 in the up-down direction. The outer cover 7 is sleeved on the outer side of the middle cover 6 and the inner cover 1, and is connected with the inner cover 6 in a way that it can only rotate relative to the inner cover 6 about the axis of itself, and is connected with the middle cover 6 in a way that it can only slide relative to the middle cover 6 in the up-down direction. At least part of the upper part of the button 4 can be exposed from the upper part of the outer cover 7.

[0036] One of the inner side circumferential surface of the middle cover 6 and the outer side circumferential surface of the inner cover 1 is provided with a guide groove 121 spirally rising around the axial center line of the inner cover 1, and the other is provided with a guide portion slidingly inserted into the guide groove 121, so that the middle cover 6 can simultaneously move up and down relative to the inner cover 1 in the process of rotating around the axial center line thereof.

[0037] Referring to the drawings, in the embodiment, the specific structure of the liquid taking device 100 is as follows:

[0038] Referring to Figure 2 As shown, the inner cover 1 has an upper cover body 11 and a lower cover body 12 connected in the up-down direction, and a cavity 111 is arranged on the upper cover body 11, and the lower cover body 12 is connected with the middle cover 6 and the outer cover 7 in a matching manner.

[0039] In the embodiment, the guide groove 121 is arranged on the outer side circumferential portion of the inner cover 1, and specifically on the outer side circumferential portion of the lower cover body 12, and the guide portion is a guide column 61 protruding and extending radially inward from the inner wall of the middle cover 6, which is slidingly inserted into the guide groove 121.

[0040] Referring to Figure 5 , Figure 6 As shown, the guide groove 121 has a first end portion 121a and a second end portion 121b arranged separately at different ends in the length direction thereof, and the first end portion 121a is higher than the second end portion 121b. In the embodiment, when the middle cover 6 rotates counterclockwise, the guide column 61 moves from the second end portion 121b to the first end portion 121a, and in this process, the middle cover 6 moves upward relative to the inner cover 1; when the middle cover 6 rotates clockwise, the guide column 61 moves from the first end portion 121a to the second end portion 121b, and in this process, the middle cover 6 moves downward relative to the inner cover 1.

[0041] The inner wall of the middle cover 6 is further provided with an annular boss 63 extending radially inward, and the annular boss 63 is located above the guide column 61, and a limiting platform 13 is formed between the upper cover body 11 and the lower cover body 12, and the limiting platform 13 and the annular boss 63 can limit the downward movement distance of the middle cover 6.

[0042] The outer wall of the middle cover 6 and the inner wall of the outer cover 7 are provided with a guide limiting structure for limiting relative rotation and providing relative sliding in the up-down direction. Specifically, the guide limiting structure includes vertical grooves 62 and convex columns 72 which are slidingly matched and extend in the up-down direction, and the two are arranged separately on the outer wall of the middle cover 6 and the inner wall of the outer cover 7. In the embodiment, referring to Figure 3 , Figure 4As shown, the vertical groove 62 is provided on the outer peripheral wall of the middle cover 6, and the protrusion 72 is provided on the inner wall of the outer cover 7, extending radially inward from the inner wall of the outer cover 7. With the cooperation of the vertical groove 62 and the protrusion 72, the user can drive the middle cover 6 to rotate relative to the inner cover 1 while rotating the outer cover 7. At the same time, the outer cover 7 does not restrict the vertical movement of the middle cover 6 during rotation due to the cooperation of the guide post 61 along the guide groove 121.

[0043] In this embodiment, during the process of the guide post 61 sliding from one end to the other along the guide groove 121, the outer cover 7 and the middle cover 6 rotate relative to the inner cover 1 by an angle of less than 180°. (See also...) Figure 3 , Figure 4 as well as Figure 6 As shown, the lower part of the inner cover 1 is provided with a protrusion 122 extending radially outward, and the inner periphery of the outer cover 7 is provided with an arc-shaped groove 71, the arc of which is less than 180°. Specifically, the protrusion 122 is provided at the lower part of the lower cover 12. During the process of the outer cover 7 and the middle cover 6 rotating together relative to the inner cover 1, the protrusion 122 slides in the arc-shaped groove 71. When the protrusion 122 slides to the end of the arc-shaped groove 71, if the user continues to rotate the outer cover 7, the outer cover 7 will drive the inner cover 1 to rotate together.

[0044] In this embodiment, the elastic element 5 is a plastic part, integrally formed on the lower part of the button 4, and the lower part of the elastic element 5 abuts against the annular boss 63. See also Figure 6 As shown, the elastic element 5 includes a connecting ring 51 sleeved on the outer periphery of the inner cover 1 and multiple elastic strips 52 connected between the connecting ring 51 and the button 4. All the elastic strips 52 extend spirally in the vertical direction with the axis of rotation of the button 4 as the center line. The connecting ring 51 is fixed at the lower part of the elastic strips 52 and abuts against the annular boss 63. When the inner cover 6 moves upward, the annular boss 63 can push the connecting ring 51 and drive the entire elastic element 5 and the button 4 to move upward together.

[0045] A limiting structure is also provided between the button 4 and the middle cover 6 to restrict the upward movement of the button 4 and prevent the button 4 from separating from the middle cover 6. During the downward movement of the middle cover 6, the limiting structure can also drive the button 4 to move downward together. In this embodiment, the limiting structure includes a first flange 41 located at the lower part of the button 4 and extending radially outward from the outer periphery of the button 4, and a second flange 64 located at the upper part of the middle cover 6 and extending radially inward from the inner wall of the middle cover 6. During the sliding of the guide post 61 along the guide groove 121 between the first end 121a and the second end 121b, only the middle cover 6 moves in the up and down direction. During the entire process, the elastic element 5 is not compressed. The first flange 41 and the second flange 64 are always abutting together, and the elastic element 5 is always in an extended state, thereby effectively avoiding fatigue failure of the elastic element 5 due to long-term compression.

[0046] A connecting post 123 extending in the vertical direction is fixedly provided in the lower cover 12. A through hole 123a extending in the vertical direction is provided on the connecting post 123. The upper part of the dropper 2 is fixedly connected to the connecting post 123. The cavity 21 of the dropper 2 is connected to the cavity 111 through the through hole 123a.

[0047] The liquid transfer device 100 in this embodiment is typically used in conjunction with a container containing liquid.

[0048] For example, see a cosmetic packaging container. Figure 7 , Figure 8 As shown, it includes a liquid storage bottle 200 and the aforementioned liquid transfer device 100, wherein a dropper 2 is inserted into the liquid storage bottle 200, and an inner cap 1 is threaded onto the liquid storage bottle 200. In the non-use state, the guide post 61 is located at the second end 121b, and the annular boss 63 abuts against the limiting platform 13.

[0049] In use, the user needs to rotate the liquid transfer device 100 to disconnect the threaded connection between it and the storage bottle 200. During rotation, the liquid transfer device 100 can automatically draw liquid from the storage bottle 200. The specific process is as follows:

[0050] Rotating the outer cover 7 will cause the middle cover 6 to rotate. The middle cover 6 will cause the elastic element 5 and the button 4 to move upward together. The button 4 will drive the piston 3 to move upward and create a negative pressure in the cavity 111. Under the action of the negative pressure, the liquid in the storage bottle 200 will be sucked into the cavity 21 of the dropper 2. At this time, the guide post 61 will slide to the first end 121a, and the protrusion 122 will slide to the end of the arc groove 71. Continuing to rotate the outer cover 7 will cause the middle cover 6 and the inner cover 1 to rotate together, thereby releasing the threaded connection between the inner cover 1 and the storage bottle 200.

[0051] Since the distance between the first end 121a and the second end 121b is fixed, the distance of the middle cover 6 moving upward relative to the inner cover 1 and the distance of the piston 3 moving upward in the cavity 111 are also fixed during the whole process of rotating to suck liquid, so the volume of the sucked liquid is also fixed during each process of rotating to suck liquid, thereby solving the problem of the user sucking too much or too little liquid due to different pressing forces each time.

[0052] When the liquid removal device 100 is detached from the liquid storage bottle 200, the guide column 61 moves to the first end 121a, and in this state, the liquid removal device 100 is the same as a common pressing type liquid removal device, and the user only needs to press the button 4 downward to discharge the liquid in the tube cavity 21; at the same time, after discharging the liquid, the user can also suck the liquid in the liquid storage bottle 200 again by pressing the button 4 again, so that the button 4 drives the piston 3 to move downward and form a negative pressure in the cavity 111.

[0053] After use, when the liquid removal device 100 is installed to the liquid storage bottle 200, the rotating outer cover 7 is rotated, the protrusion 122 slides from one end to the other end of the arc-shaped groove 71, the guide column 61 slides from the first end 121a to the second end 121b, and the outer cover 7 rotates together with the middle cover 6 relative to the inner cover 1 but does not drive the inner cover 1 to rotate, in this process, the middle cover 6 drives the elastic member 5, the button 4 and the piston 3 to return to the initial position downward, at this time, if there is still liquid in the tube cavity 21, the liquid will be discharged into the liquid storage bottle 200; when the guide column 61 moves to the second end 121b and the protrusion 122 moves to the other end of the arc-shaped groove 71, the outer cover 7 drives the inner cover 1 to rotate together, and realizes the threaded connection between the inner cover 1 and the liquid storage bottle 200.

[0054] In summary, during the process of removing the liquid removal device 100 from the liquid storage bottle 200 and the like, the outer cover 7 is rotated, the outer cover 7 drives the middle cover 6 to rotate together, the middle cover 6 moves upward relative to the inner cover 1 under the cooperation of the guide column 61 and the guide groove 121, and drives the piston 3 to move upward under the action of the elastic member 5 and the button 4, so that the liquid in the liquid storage bottle 200 and the like can be sucked, the user can use it more conveniently, and the quantitative sucking of liquid can also be realized.

[0055] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the person skilled in the art to understand the content of the present application and to 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 liquid taking device comprises: an inner cover, an upper portion of the inner cover having a cavity; a dropper, the dropper extending in the up-down direction, the dropper being fixedly installed at a lower portion of the inner cover, and a lumen of the dropper being in communication with the cavity; a piston, the piston being slidingly fitted in the cavity, an outer circumferential wall of the piston being sealingly connected with an inner circumferential wall of the cavity; a button, the button being slidingly fitted in the up-down direction at the upper portion of the inner cover, the button being fixedly connected with the piston; a resilient member, the resilient member being capable of providing a required force for the button to move upward away from the inner cover, the resilient member being arranged at a lower portion of the button; a middle cover, the middle cover being sleeved on the outer side of the inner cover in a manner that the middle cover is relatively rotatable about its own axis and relatively slidable in the up-down direction, an inner wall of the middle cover being provided with an annular boss extending radially inward, a lower portion of the resilient member being abutted against the annular boss; a limiting structure for limiting the upward movement of the button being provided between the button and the middle cover; an outer cover, the outer cover being sleeved on the outer side of the middle cover and the inner cover, the outer cover being connected with the inner cover in a manner that the outer cover is relatively rotatable about its own axis with respect to the inner cover, and the outer cover being connected with the middle cover in a manner that the outer cover is relatively slidable in the up-down direction with respect to the middle cover, an upper portion of the button being at least partially exposed from an upper portion of the outer cover, wherein a guide limiting structure for limiting the relative rotation between the outer wall of the middle cover and the inner wall of the outer cover and capable of providing the relative sliding in the up-down direction is provided between the outer wall of the middle cover and the inner wall of the outer cover, the guide limiting structure comprising a vertical slot and a protruding column which are both extending in the up-down direction and slidingly fitted, the vertical slot and the protruding column being separately arranged on the outer wall of the middle cover and the inner wall of the outer cover; one of an inner circumferential surface of the middle cover and an outer circumferential surface of the inner cover being provided with a guide groove spirally rising about the axis of the inner cover, the other being provided with a guide portion slidingly fitted in the guide groove; when the outer cover is rotated, the outer cover drives the middle cover to move up and down, when the middle cover moves upward, the annular boss can drive the resilient member and the button to move upward together; when the middle cover moves downward, the limiting structure drives the button to move downward together.

2. The liquid transfer device of claim 1, wherein: The guide groove is arranged on the outer circumferential portion of the inner cover, and the guide portion is a guide column protruding and extending radially inward from the inner wall of the middle cover, the guide column being slidingly fitted in the guide groove.

3. The liquid transfer device of claim 2, wherein: The guide groove has a first end portion and a second end portion which are separately arranged at different ends of the length direction of the guide groove, the first end portion being higher than the second end portion, during the movement of the guide column from the first end portion to the second end portion, the piston moves downward along the cavity so that the liquid taking device is drained; during the movement of the guide column from the second end portion to the first end portion, the piston moves upward along the cavity so that the liquid taking device is filled with liquid, during the sliding of the guide column along the guide groove between the first end portion and the second end portion, the resilient member is always in an elongated state.

4. The liquid transfer device of claim 2, wherein: The outer cover and the middle cover jointly rotate relative to the inner cover by an angle less than 180° during the guiding column sliding along the guiding groove from one end to the other end, wherein the lower part of the inner cover is provided with a protrusion extending outward in the radial direction, the inner side of the outer cover is provided with an arc-shaped groove, and the protrusion is slidably inserted into the arc-shaped groove, wherein the arc of the arc-shaped groove is less than 180°.

5. The liquid transfer device of any one of claims 1 to 4, wherein: The elastic member is a plastic member, and the elastic member is integrally formed on the lower part of the button.

6. The liquid transfer device of claim 5, wherein: The elastic member includes a connecting ring sleeved on the outer side of the inner cover, and a plurality of elastic strips connected between the connecting ring and the button, and all the elastic strips extend spirally in the up-down direction with the axis of the button as the rotation center line.

7. The liquid transfer device of claim 1, wherein: The inner cover has an upper cover body and a lower cover body connected in the up-down direction, the cavity is arranged on the upper cover body, the lower cover body is fixedly provided with a connecting column extending in the up-down direction, the connecting column is provided with a through hole penetrating in the up-down direction, and the upper part of the dropper is fixedly connected to the connecting column, and the lumen of the dropper is communicated with the cavity through the through hole.

8. The liquid transfer device of claim 7, wherein: The elastic member is sleeved on the outer side of the upper cover body and abuts downward on the annular boss, and a limiting table for limiting the downward movement stroke of the annular boss is further formed between the upper cover body and the lower cover body; the lower cover body is connected with the middle cover and the outer cover.

9. A cosmetic packaging container comprising a liquid storage bottle, characterized by: The liquid taking device also includes the liquid taking device according to any one of claims 1 to 8, wherein the dropper is inserted into the liquid storage bottle, and the inner cover is threadedly connected to the liquid storage bottle.

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