Adjustable dosing cover device

Abstract

The present invention provides an adjustable quantitative cover device, which can be installed on a container. The adjustable quantitative cover device includes: a cup body, which is hollow, thereby defining a cavity that can accommodate a certain amount of liquid, and the cup body is installed on the mouth of the container, wherein the cup body is provided with a suction port, and a lower one-way valve is provided at the suction port; a cup body cover, which is sleeved on the cup body and can move relative to the cup body; and a baffle, which is connected to the cup body cover, thereby moving with the cup body cover relative to the cup body, and the baffle can be slidably and sealingly matched relative to the inner side of the cup body, wherein the baffle is provided with at least one through port, and an upper one-way valve is provided at the through port. The adjustable quantitative cover device of the present invention has accurate quantitative measurement, simple structure, convenient operation, and can achieve precise and adjustable metering. The adjustable quantitative cover device of the present invention is realized by the principle of "pump", and there is no need to squeeze the container. In addition, by configuring each one-way valve, it is possible to prevent the liquid from flowing back into the container and causing pollution.

Description

Technical Field

[0001] The present invention generally relates to liquid packaging, and more particularly to an adjustable dosing cap device. Background Art

[0002] Common daily chemical products (such as laundry detergent, shampoo, etc.) and liquid oral products (such as liquid medicine, liquid food, etc.) on the market often need to be used according to dosage, so most of them are equipped with quantitative caps. However, the quantitative caps currently available on the market have the following problems.

[0003] 1. Inaccurate quantitative measurement. The quantitative measurement principle of existing quantitative cap devices is not very reliable. For example, when users pour at different angles or at different pouring speeds, there will be a large deviation in the quantitative measurement.

[0004] 2. It is easy to be contaminated. Specifically, the existing quantitative cap device will cause the liquid to flow back into the bottle. If the liquid that has already come out of the bottle flows back into the bottle, it is likely to cause the liquid in the bottle to be contaminated. In particular, for oral medications, the problem of liquid backflow is even more unacceptable.

[0005] 3. Inconvenient to operate. Some existing quantitative cap devices require squeezing the bottle when in use, which is not suitable for rigid containers such as glass bottles. Fig.21 It is taken from Chinese utility model patent CN207389970U, which shows a container quantitative cover. Before using this container quantitative cover, you need to rotate the quantitative cover to connect the quantitative cover with the bottle body, then invert the bottle body for a few seconds, and then rotate the quantitative cover in the opposite direction while keeping it inverted to close the connection between the quantitative cover and the bottle body, and then stand the bottle body upright and open the flip cover before use. Such cumbersome operation brings inconvenience to the user, and the user is prone to misoperation.

[0006] 4. Single dose, no adjustable dose function. Take the laundry detergent packaging container as an example. Different doses of laundry detergent need to be added for different amounts of clothes. However, the existing technology can only provide a single dose quantitative cap, which cannot meet the demand for adjustable quantitative.

[0007] Before the present application, there was no liquid packaging that could well solve the above problems. Summary of the invention

[0008] In view of the above problems, one object of the present invention is to provide an adjustable quantitative cover device with accurate and adjustable quantitative measurement.

[0009] Another object of the present invention is to provide an adjustable quantitative cover device which is simple and convenient to operate and has no liquid backflow.

[0010] To achieve the above-mentioned purpose, the present invention provides an adjustable quantitative cover device, which can be installed on a container, and the adjustable quantitative cover device includes: a cup body, which is hollow, thereby defining a cavity that can accommodate a certain amount of liquid, and the cup body is installed at the mouth of the container, wherein the cup body is provided with a suction port, and a lower one-way valve is provided at the suction port; a cup body cover, which is sleeved on the cup body and can move relative to the cup body; and a baffle, which is connected to the cup body cover, thereby moving with the cup body cover relative to the cup body, and the baffle can be slidably and sealingly matched relative to the inner side of the cup body, wherein at least one through port is provided on the baffle or the cup body cover, and an upper one-way valve is provided accordingly.

[0011] Preferably, the top of the cup cover is provided with an opening for pouring out the liquid.

[0012] Preferably, a connecting handle is provided on the inner side of the cup body cover, and the barrier is connected to the cup body cover via the connecting handle.

[0013] The present invention also provides an adjustable quantitative cover device, which can be installed on a container, and the adjustable quantitative cover device includes: a cup body, which is hollow, thereby defining a cup body cavity, and the cup body is installed to the mouth of the container, wherein the cup body is provided with a suction port, and a lower one-way valve is provided at the suction port; a cup body cover, which is sleeved on the cup body and can move relative to the cup body, and the cup body cover has a blocking part, and the blocking part can be slidably and sealingly matched with the inner side of the cup body, wherein the cup body cover has a liquid channel, one end of the liquid channel is connected to the cup body cavity, and the other end of the liquid channel can communicate with the outside, and an upper one-way valve is provided.

[0014] Preferably, the cup cover constitutes the movable component, and the cup body constitutes the stationary component, and the movable component moves linearly relative to the stationary component.

[0015] Preferably, the cup cover constitutes the movable component, and the cup body constitutes the stationary component, and the movable component performs rotational movement relative to the stationary component.

[0016] Preferably, the cup cover constitutes the movable component, and the cup constitutes the stationary component, and a return spring is arranged between the movable component and the stationary component.

[0017] Preferably, the barrier portion is formed integrally with the cup body cover.

[0018] Preferably, a first protrusion is provided near the lower end of the cup cover, and a second protrusion is provided near the upper end of the cup body, and the second protrusion of the cup body cooperates with the first protrusion of the cup cover to form an upper dead point.

[0019] Preferably, the cup body is divided into an upper portion and a lower portion by a partition, and the lower portion of the cup body is mounted to the mouth of the container.

[0020] Preferably, the cup body is further provided with a balancing air hole for communicating the interior of the container with the outside, and a balancing air hole one-way valve is provided at the balancing air hole.

[0021] Preferably, a volume scale indicating a certain amount is also provided on the outer surface of the cup body.

[0022] Preferably, the barrier member has an outer ring and an inner ring, the outer ring is slidably and sealingly matched with the inner side wall of the cup body, and the inner ring forms a sealing plug.

[0023] Preferably, a guide groove is provided on one of the cup cover and the cup body, and a guide block is provided on the other of the cup cover and the cup body, and the cup cover is rotated relative to the cup body to rise or fall through the cooperation of the guide groove and the guide block.

[0024] Preferably, the cup cover includes a finger-operated portion.

[0025] The present invention further provides a liquid packaging container, comprising: an adjustable quantitative cover device as described above; and at least one of a rigid container and a flexible container.

[0026] According to the present invention, an adjustable quantitative cover device capable of adjusting the quantitative amount of liquid outflow from a liquid packaging container is provided, which has accurate quantitative amount, simple structure, convenient operation, and can realize accurate and adjustable measurement. The adjustable quantitative cover device of the present invention is realized by the principle of "pump", and the container does not need to be squeezed, so it can be used with a rigid container. However, the adjustable quantitative cover device of the present invention can also be applied to a flexible container. In addition, the configuration of each one-way valve can prevent the liquid from flowing back into the container to cause pollution.

[0027] The adjustable quantitative cover device of the present invention can be widely used in various liquid packaging, such as packaging containers for daily chemical products, liquid medicine containers, liquid food containers, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1a is a cross-sectional view of an adjustable quantitative cover device according to a first embodiment of the present invention, wherein the cup cover is in a non-lifted state;

[0029] Figure 1b is a cross-sectional view of an adjustable quantitative cover device according to a first embodiment of the present invention, wherein the cup cover is in a pulled-up state;

[0030] Figure 1c yes Figure 1b An enlarged view of part A in FIG.

[0031] Figure 1d yes Figure 1b An enlarged view of part B in FIG.

[0032] Figure 2ais a front view of an adjustable quantitative cover device according to a first embodiment of the present invention, wherein the cup cover is in a non-lifted state;

[0033] Figure 2b is a front view of the adjustable quantitative cover device according to the first embodiment of the present invention, wherein the cup cover is in a pulled-up state;

[0034] Figure 3a is a cross-sectional view of a cup cover of an adjustable quantitative cover device according to a first embodiment of the present invention;

[0035] Figure 3b is a bottom stereogram of a cup cover of an adjustable quantitative cover device according to a first embodiment of the present invention;

[0036] Figure 3c is a top perspective view of a cup cover of an adjustable quantitative cover device according to a first embodiment of the present invention;

[0037] Figure 4a is a cross-sectional view of a cup body of an adjustable quantitative cover device according to a first embodiment of the present invention;

[0038] Figure 4b is a three-dimensional diagram of a cup body of an adjustable quantitative cover device according to a first embodiment of the present invention;

[0039] Figure 5a is a cross-sectional view of a barrier member of an adjustable quantitative cover device according to a first embodiment of the present invention;

[0040] Figure 5b is a three-dimensional diagram of a barrier member of an adjustable quantitative cover device according to a first embodiment of the present invention;

[0041] Figure 6a is a cross-sectional view of an upper one-way valve used in an adjustable quantitative cover device according to a first embodiment of the present invention;

[0042] Figure 6b is a three-dimensional diagram of an upper one-way valve used in an adjustable quantitative cover device according to a first embodiment of the present invention;

[0043] Figure 7a is a cross-sectional view of a lower one-way valve used in an adjustable quantitative cover device according to a first embodiment of the present invention;

[0044] Figure 7b is a perspective view of a lower one-way valve used in an adjustable quantitative cover device according to a first embodiment of the present invention;

[0045] Figure 8a is a cross-sectional view of a balanced air hole one-way valve used in an adjustable quantitative cover device according to a first embodiment of the present invention;

[0046] Figure 8bis a three-dimensional diagram of a balanced air hole one-way valve used in an adjustable quantitative cover device according to a first embodiment of the present invention;

[0047] Figure 9a is a cross-sectional view of an adjustable quantitative cover device according to a second embodiment of the present invention, wherein the cup cover is in an unrotated state;

[0048] Figure 9b is a cross-sectional view of an adjustable quantitative cover device according to a second embodiment of the present invention, wherein the cup cover is in a screwed-up state;

[0049] Fig.10a is a front view of an adjustable quantitative cover device according to a second embodiment of the present invention, wherein the cup cover is in an unrotated state;

[0050] Fig.10b is a front view of an adjustable quantitative cover device according to a second embodiment of the present invention, wherein the cup cover is in a screwed-up state;

[0051] Fig.11a is a cross-sectional view of a cup cover of an adjustable quantitative cover device according to a second embodiment of the present invention;

[0052] Fig.11b is another cross-sectional view of the cup cover of the adjustable quantitative cover device according to the second embodiment of the present invention;

[0053] Fig.11c is a three-dimensional diagram of a cup cover of an adjustable quantitative cover device according to a second embodiment of the present invention;

[0054] Fig.12a is a cross-sectional view of a cup body of an adjustable quantitative cover device according to a second embodiment of the present invention;

[0055] Figure 12b is a front view of a cup body of an adjustable quantitative cover device according to a second embodiment of the present invention;

[0056] Fig.12c is a three-dimensional diagram of a cup body of an adjustable quantitative cover device according to a second embodiment of the present invention;

[0057] Fig.13a is a cross-sectional view of an adjustable dosing cover device according to another embodiment of the present invention, wherein a different upper one-way valve is used;

[0058] Fig.13b yes Fig.13a An enlarged view of section C in FIG.

[0059] Fig.14a is a cross-sectional view of an adjustable quantitative cover device according to another embodiment of the present invention, wherein another different upper non-return valve is adopted;

[0060] Fig.14b yes Fig.14a An enlarged view of section D in FIG.

[0061] Fig.15 Shows Fig.13a and Fig.13b The baffle member used in the illustrated embodiment;

[0062] Fig.16 The adjustable quantitative cover device of the present invention is shown in use;

[0063] Fig.17 is a cross-sectional view of an adjustable quantitative cover device according to a third embodiment of the present invention, wherein the cup cover is in a non-lifted state;

[0064] Fig.18 yes Fig.17 Another cross-sectional view of the adjustable quantitative cover device, wherein the cup cover is in a pulled-up state;

[0065] Fig.19 yes Fig.17 A cross-sectional view of the adjustable dosing cap device applied to a flexible container;

[0066] Fig. 20 is a cross-sectional view of an adjustable dosing cover device according to a fourth embodiment of the present invention, wherein the cup cover is lifted up by a spring; and

[0067] Fig.21 The container quantitative cover of the prior art CN207389970U is shown. DETAILED DESCRIPTION

[0068] Figure 1a - Figure 8b A first embodiment of the adjustable dosing cover device of the present invention is shown.

[0069] like Figure 1a , 1b and Figure 2a , 2b As shown, the adjustable quantitative cover device 1 according to the first embodiment of the present invention mainly includes a cup body cover 10, a cup body 11 and a barrier (or "piston") 12. Therefore, the adjustable quantitative cover device 1 according to the first embodiment, which is mainly composed of these three components, can also be called a "three-piece pump". The cup body cover 10 is sleeved on the cup body 11 and can move relative to the cup body 11. The cup body 11 is mounted to the mouth of the container 2, and is preferably connected to a straw 13. The barrier 12 is connected to the cup body cover 10 and can move with the cup body cover 10 relative to the cup body 11. The cup body cover 10 and the barrier 12 constitute a movable component, and the cup body 11 constitutes a stationary component. In this embodiment, the movable component moves linearly relative to the stationary component.

[0070] like Figure 1a -1b and Figure 3aAs shown in FIG. 3c, the cup cover 10 is a hollow cylinder, thereby defining a cavity that can accommodate a certain amount of liquid. An opening 101 for pouring out the liquid is provided at the top of the cup cover 10. A connecting handle 102 is provided on the inner side of the cup cover 10, and the barrier 12 can be connected to the cup cover 10 through the connecting handle 102. In addition, a first protrusion 103 is provided near the lower end of the cup cover 10.

[0071] like Figure 1a -1b and Figure 4a As shown in FIG. 4b, the cup body 11 is also hollow cylindrical, thereby defining a cavity that can accommodate a certain amount of liquid. The cup body 11 is divided into an upper part and a lower part by a partition 115. The lower part of the cup body 11 is installed to the mouth of the container, for example, by screw threads. The cup body cover 10 is sleeved on the outer side of the upper part of the cup body 11. The baffle 12 is slidably and sealingly matched with the inner side of the upper part of the cup body 11 to form a "cylinder-piston"-like fit.

[0072] Depend on Figure 4a and Figure 4b It can be clearly seen that a second protrusion 114 is provided near the upper end of the cup body 11, and the second protrusion 114 of the cup body 11 can cooperate with the first protrusion 103 of the cup body cover 10 to form an upper dead point. When the cup body cover 10 moves upward relative to the cup body 11 to the point where the first protrusion 103 contacts the second protrusion 114, the cup body cover 10 can be prevented from continuing to move upward. Since the cup body cover 10 and the cup body 11 are molded from elastic plastic, the first protrusion 103 can be easily passed over the second protrusion 114 when the cup body cover 10 is assembled to the cup body 11. In addition, if Figure 2b and Figure 4b As shown, a volume scale 113 indicating a certain amount is also provided on the outer surface of the cup body 11. It should be understood that the volume scale can also be provided on the cup body cover 10, for example Fig.16 It is shown that the volume scale is arranged on the connecting handle of the cup body cover. If the quantitative precision requirement is not high, the volume scale may not be arranged.

[0073] like Figure 1a , 1b and Figure 4a As shown, a suction port 111 is provided on the cup body 11, and a lower one-way valve 15 is provided on the suction port 111. The lower one-way valve 15 allows the liquid to enter the first liquid storage space S1 below the baffle 12, but prevents the liquid from flowing back into the container 2. Preferably, a valve seat 116 is provided on the cup body 11 to set the suction port 111 and the lower one-way valve 15. The suction tube 13 is in fluid communication with the suction port 111 and can also be connected to the valve seat 116. It should be understood that the suction tube 13 can also be replaced by a structure such as an air bag, or even the suction tube 13 can be omitted, and the liquid can be directly sucked by vacuum, which will be described in detail in subsequent embodiments. Figure 7a ,7b The lower non-return valve 15 used in this embodiment is shown.

[0074] like Figure 1b and 1d As shown, a balancing air hole 112 is also provided on the side wall of the cup body 11 to allow the interior of the container 2 to communicate with the outside. Correspondingly, a balancing air hole check valve 16 is provided on the balancing air hole. Figure 1a ), the cup cover 10 can seal the balance air hole 112; when the cup cover 10 is in the pulled-up position ( Figure 1b ), the balancing air hole 112 is exposed, and the balancing air hole one-way valve 16 allows outside air to enter the container 2 to balance the negative pressure in the container 2, while blocking the material liquid in the container 2 from flowing out of the balancing air hole 112. Figure 8a , 8b The balanced air hole non-return valve 16 used in this embodiment is shown.

[0075] like Figure 1a -1b and Figure 5a As shown in FIG. 5b, the barrier 12 is preferably a disc-shaped body with an outer ring 122 and an inner ring 123. The outer ring 122 is slidably and sealingly matched with the inner side wall of the upper part of the cup body 11. The inner ring 123 forms a sealing plug. When the cup body cover 10 is in the pressed position ( Figure 1a ), cooperates with a part of the cup body 11 (such as the valve seat 116) to prevent leakage of liquid. The barrier 12 is provided with one or more openings or channels 121 connecting the upper and lower spaces thereof. The upper one-way valve 14 is provided at the corresponding openings or channels 121. The upper one-way valve 14 allows liquid to enter the second liquid storage space S2 above the barrier 12, and prevents liquid from flowing back to the first liquid storage space S1 below the barrier 12. Figure 6a , 6b The upper non-return valve 14 used in this embodiment is shown.

[0076] It should be understood that although in this embodiment, the opening or channel is provided in the barrier 12 and the corresponding upper check valve 14 is provided, other designs may be possible in practice. For example, the opening or channel may be provided on the connecting handle 102 or other part of the cup cover 10 instead, and the upper check valve 14 may be provided accordingly. The opening or channel may be provided as long as it enables the first liquid storage space S1 and the second liquid storage space S2 to communicate with each other.

[0077] Although Figure 6a , 6b - Figure 8a , 8bThe designs of the one-way valves used in this embodiment are shown respectively, but it should be understood that the one-way valves are not limited to the forms shown in the figure, but can take other forms, which will be mentioned below. In addition, the one-way valves can be separately assembled components, or they can be molded to related components by secondary molding.

[0078] The following will be combined Figure 2a , 2b as well as Fig.16 The operation and working principle of the adjustable dosing cover device 1 according to the first embodiment of the present invention will be described.

[0079] like Figure 2a As shown, when not in use, the cup cover 10 is in the lower position. Figure 2b As shown, when in use, the cup cover 10 is pulled upward until it is pulled up to the scale position of the required amount, and then the pulling is stopped. At this time, the barrier 12 moves upward with the cup cover 10, the lower one-way valve 15 on the cup body 11 is in an open state, and the upper one-way valve 14 on the barrier 12 is in a closed state. Therefore, negative pressure is formed in the first liquid storage space S1 below the barrier 12, and the required amount of liquid in the container 2 is sucked into the first liquid storage space S1 through the suction tube 13. Figure 2a and Figure 2b The hollow arrow in shows the up-and-down movement direction of the cup body cover 10.

[0080] Then, the cup cover 10 is pressed downward. At this time, the lower one-way valve 15 on the cup body 11 is closed, and the upper one-way valve 14 on the barrier 12 is opened. Then, the liquid passes through the opening 121 on the barrier 12 and enters the second liquid storage space S2 above the barrier 12. That is, the liquid is transferred from the first liquid storage space S1 to the second liquid storage space S2. Fig.16 It shows the state that the feed liquid is in the second liquid storage space S2.

[0081] Finally, the liquid in the second liquid storage space S2 of the cup body 11 is poured out (or taken out in other ways) for use.

[0082] In summary, the adjustable quantitative cover device 1 according to the first embodiment of the present invention can be operated simply by the three steps described above (pulling up the cup cover - pressing down the cup cover - taking out for use), which is very convenient to use, has accurate quantitative measurement, and does not cause pollution due to reflux of liquid.

[0083] Figure 9a - Fig.12c The second embodiment of the adjustable dosing cover device of the present invention is shown. All the same components of the second embodiment as the first embodiment are indicated by the same reference numerals, while corresponding or similar components are indicated by adding a suffix "A" after the reference numerals of the first embodiment.

[0084] The same components or structures shared by the adjustable dosing cover device 1A according to the second embodiment of the present invention and the adjustable dosing cover device 1 of the first embodiment will not be described in detail. The following will focus on the differences between the adjustable dosing cover device 1A of the second embodiment and the adjustable dosing cover device 1 of the first embodiment.

[0085] The difference between the adjustable dosing cover device 1A of the second embodiment and the adjustable dosing cover device 1 of the first embodiment lies mainly in the relative movement between the cup cover and the cup body. Fig.11a , 11b as well as Figure 12b , 12c As shown, in the second embodiment, a spiral guide groove 103A is provided on the inner side of the cup body cover 10A, and a guide block 114A is provided near the upper end of the cup body 11A. Alternatively, the positions of the guide groove and the guide block can be interchanged, that is, the guide groove is provided on the cup body 11A, and the guide block is provided on the cup body cover 10A. Through the cooperation of the guide groove / guide block, the cup body cover 10A can be raised or lowered by rotating relative to the cup body 11A. That is, the cup body cover 10A and the barrier constitute a movable component, and the cup body 11A constitutes a stationary component. In this embodiment, the movable component rotates relative to the stationary component.

[0086] The following will be combined Fig.10a , 10b The operation and working principle of the adjustable dosing cover device 1A according to the second embodiment of the present invention will be described.

[0087] like Fig.10a As shown, when not in use, the cup cover 10A is in the lower position. Fig.10b As shown, when in use, the cup cover 10 is rotated in a certain direction to move upward until it is rotated to the scale position of the required amount, and then the rotation is stopped. At this time, the barrier moves upward with the cup cover 10A, the lower one-way valve on the cup 11A is in an open state, and the upper one-way valve on the barrier is in a closed state. As a result, negative pressure is formed in the first liquid storage space below the barrier, and the required amount of liquid in the container 2 is sucked into the first liquid storage space.

[0088] Then, the cup cover 10A is rotated in the reverse direction to move downward. At this time, the lower one-way valve on the cup body 11A is closed, and the upper one-way valve on the barrier is opened. Then, the liquid passes through the opening on the barrier and enters the second liquid storage space above the barrier. That is, the liquid is transferred from the first liquid storage space to the second liquid storage space.

[0089] Finally, the liquid in the second liquid storage space of the cup body 11A can be poured out (or taken out in other ways) for use.

[0090] In summary, except for using rotation instead of pulling, the operation and working principle of the second embodiment of the adjustable quantitative cover device 1A are basically similar to those of the first embodiment, and can be operated simply by using the three steps described above (rotating to raise the cup body cover - reverse rotation to press the cup body cover - taking out for use). Similarly, the adjustable quantitative cover device 1A is also very convenient to use, and the quantitative amount is accurate, and there is no problem of contamination caused by reflux of the liquid.

[0091] Fig.13a and Fig.13b The adjustable quantitative cover device according to another embodiment of the present invention is shown. The difference between this embodiment and the previous embodiment is that a different upper check valve 14A is used. Specifically, the upper check valve 14A adopts an elastomeric check valve, which includes a perforated hollow tube and an elastomer sleeved on the hollow tube. Fig.15 A barrier member using the elastomeric one-way valve is shown.

[0092] Fig.14a and Fig.14b The adjustable dosing cover device according to another embodiment of the present invention is shown. This embodiment uses another different upper check valve 14A'. Specifically, the upper check valve 14A' adopts a ball check valve, which includes a valve seat and a ball seated on the valve seat.

[0093] Fig.17 and Fig.18 The third embodiment of the present invention is shown, and all components corresponding to or similar to those of the first embodiment are suffixed with "B" after the original reference numerals. The same components or structures shared by the adjustable dosing cover device 1B according to the third embodiment of the present invention and the previous embodiments will not be described in detail.

[0094] Cross-sectional view of adjustable quantitative cover device 1B, wherein cup cover 10B is in un-lifted state and lifted state respectively. This embodiment can be advantageously applied to the case where the viscosity of the liquid is high (e.g., paste). In the case where the viscosity of the liquid is high, if the structures of the above-mentioned embodiments are adopted, it may be difficult to pour the liquid from the cup cover, and a small amount of the liquid may remain in the cup cover.

[0095] exist Fig.17 and 18In the illustrated embodiment, it mainly includes a cup body cover 10B and a cup body 11B, so it can also be called a "two-piece pump". As in the aforementioned embodiments, the cup body cover 10B is sleeved on the cup body 11B and can move relative to the cup body 11B. The cup body 11B is mounted to the mouth of the container and is preferably connected to a straw. The barrier portion 12B is integrally formed as a part of the cup body cover 10B and can move with the cup body cover 10B relative to the cup body 11B. The cup body cover 10B and the barrier portion 12B constitute a movable component, and the cup body 11B constitutes a stationary component. In this embodiment, the movable component moves linearly relative to the stationary component.

[0096] Preferably, a volume scale (not shown in the figure) is provided on the cup body 11B.

[0097] Different from the first embodiment described above, in this embodiment, the hollow tubular portion 102B provided on the cup cover 10B serves as a liquid channel. The lower end of the hollow tubular portion 102B communicates with the cavity of the cup body 11B. The upper end of the hollow tubular portion 102B can communicate with the outside world and is provided with an upper one-way valve 14B.

[0098] The following will be combined Fig.17 , Fig.18 To describe the operation and working principle of the adjustable dosing cover device 1B.

[0099] like Fig.17 As shown, when not in use, the cup cover 10B is in the lower position. Fig.18 As shown, when in use, the cup cover 10B is pulled upward until it is pulled up to the scale position of the required amount, and then the pulling is stopped. At this time, the barrier part 12B moves upward with the cup cover 10B, the lower one-way valve on the cup 11B is in an open state, and the upper one-way valve 14B on the cup cover 10B is in a closed state. Thus, negative pressure is formed in the first liquid storage space below the barrier, and the required amount of liquid in the container is sucked into the first liquid storage space through the straw.

[0100] Then, the cup cover 10B is pressed downward. At this time, the lower check valve on the cup 11B is closed, and the upper check valve 14B on the cup cover 10B is opened. Then, the liquid passes through the hollow tubular portion 102B and is discharged from the upper check valve 14B at the upper end of the tubular portion 102B.

[0101] Fig.18 The arrows in the figure show the direction of movement of the liquid.

[0102] In this way, the viscous liquid can be directly sucked out from the hollow tubular portion 102B without having to be poured out through the cup cover, which is very convenient to operate. Moreover, no liquid will remain in the cup cover.

[0103] Fig.19The adjustable quantitative cover device 1B is shown as being applied to a flexible container. As mentioned above, in addition to rigid containers, the adjustable quantitative cover device of the present invention can also be directly applied to flexible containers. When the adjustable quantitative cover device of the present invention is applied to a flexible container 2', since the volume of the flexible container 2' will decrease as the liquid is drawn out, there is no need to add air, and further, there is no need to set a balancing hole on the container.

[0104] The operation of the adjustable quantitative cover device 1B used together with the flexible container 2' is the same as the third embodiment. In addition, it should be understood that, although the adjustable quantitative cover device 1B of the third embodiment is applied to the situation of the flexible container, it is also completely feasible to apply the adjustable quantitative cover device of the first and second embodiments to the flexible container.

[0105] Fig. 20 A fourth embodiment of the present invention is shown, wherein components corresponding to or similar to the previous embodiments are denoted by adding a suffix "C" after the original reference numerals. The same components or structures shared by the adjustable dosing cover device 1C according to the fourth embodiment of the present invention and the previous embodiments will not be described in detail.

[0106] exist Fig. 20 In the illustrated embodiment, the adjustable quantitative cover device 1C is installed in a container unit consisting of a rigid container 2 and a flexible container 2'. The flexible container 2' is arranged in the rigid container 2, and the liquid is contained in the flexible container 2'. A balancing air hole (not shown) is arranged on the rigid container 2, so that the flexible container 2' can communicate with the outside.

[0107] In the fourth embodiment, a return spring 17 is provided between the movable member (e.g., the cup cover 10C and the barrier portion 12C) and the stationary member (e.g., the cup body 11C). When the user presses the cup cover 10C relative to the cup body 11C by hand, if the user releases the hand, the elastic force of the return spring 17 will return the cup cover 10C to the raised position. In other words, there is no need to pull up the cup cover 10B by hand. In addition, for easy operation, a finger operation portion 104 is provided on the cup cover 10C.

[0108] As mentioned above, due to the effect of the return spring 17, the cup cover 10C is usually in a state as follows: Fig. 20The cup body cover 10C is in the lifted state shown. When in use, the cup body cover 10C is pressed downward, so that the liquid can be discharged from the first liquid storage space below the baffle part 12C through the liquid channel and from the upper one-way valve. Release your hand, and the cup body cover 10C is pushed by the spring 17 and returns to the lifted state. At this time, the lower one-way valve on the cup body 11C is in an open state, and the upper one-way valve on the cup body cover 10C is in a closed state. Thus, a negative pressure is formed in the first liquid storage space below the baffle part 12C, and the liquid in the container is sucked into the first liquid storage space for next use. It should be understood that all components of the adjustable quantitative cover device of the present invention can be molded by plastic injection. It should also be understood that the "liquid" referred to herein has a wide range, including but not limited to oral liquid medicines, functional beverages, mouthwashes, laundry detergents, lotions, etc. These liquids may have different properties (such as viscosity) and functions.

[0109] Although the above is described in detail in combination with the preferred embodiments and drawings of the present invention, it should be understood that a person skilled in the art should be able to make various equivalent variations or modifications based on the above disclosure. For example, the cup cover 10 and the barrier 12 in the first and second embodiments can be connected in other ways or even directly formed into one piece. Therefore, the protection scope of the present invention should be defined by the attached claims, rather than being limited to the above specific description.

[0110] Reference numerals:

[0111] 1. 1A, 1B, 1C: Adjustable dosing cover device

[0112] 2.2': Container

[0113] 10, 10A, 10B, 10C: cup cover

[0114] 11, 11A, 11B, 11C: cup body

[0115] 12, 12A, 12B, 12C: barrier

[0116] 12B: Partition

[0117] 13: Straw

[0118] 14, 14A, 14A', 14B: Upper check valve

[0119] 15: Lower check valve

[0120] 16: Balanced air hole check valve

[0121] 17: Return spring

[0122] 101: Opening

[0123] 102: Connecting handle

[0124] 102B: Tubular section

[0125] 103: The first protrusion

[0126] 103A: Guide groove

[0127] 104: Finger operation part

[0128] 111: Suction port

[0129] 112: Balanced pores

[0130] 113: Volume scale

[0131] 114: Second protrusion

[0132] 114A: Guide block

[0133] 115: Divider

[0134] 116: Valve seat

[0135] 121: Passage or channel

[0136] 122: Outer ring

[0137] 123: Inner Circle

[0138] S1: First liquid storage space

[0139] S2: Second liquid storage space

Claims

1. An adjustable quantitative cover device, which can be installed on a container, the adjustable quantitative cover device comprising: A cup body, wherein the cup body is hollow, thereby defining a cavity capable of receiving a certain amount of liquid material, and the cup body is mounted to the mouth of the container, wherein the cup body is provided with a suction port, and a lower one-way valve is provided at the suction port; A cup body cover, which is sleeved on the cup body and can move relative to the cup body; and a barrier member, which is connected to the cup body cover and moves with the cup body cover relative to the cup body. The barrier member can be slidably and sealingly matched relative to the inner side of the cup body, wherein at least one through opening is provided on the barrier member or the cup body cover, and an upper one-way valve is correspondingly provided.

2. The adjustable quantitative cover device according to claim 1, characterized in that: The top of the cup cover is provided with an opening for pouring out the liquid.

3. The adjustable quantitative cover device according to claim 1, characterized in that: A connecting handle is provided on the inner side of the cup body cover, and the barrier is connected to the cup body cover via the connecting handle.

4. An adjustable quantitative cover device, which can be installed on a container, the adjustable quantitative cover device comprising: A cup body, wherein the cup body is hollow, thereby defining a cup body cavity, and the cup body is mounted to the mouth of the container, wherein the cup body is provided with a suction port, and a lower one-way valve is provided at the suction port; A cup body cover, which is sleeved on the cup body and can move relative to the cup body, and has a baffle portion, which is slidably and sealingly matched with the inner side of the cup body. Among them, the cup body cover has a liquid channel, one end of the liquid channel is connected to the cup body cavity, the other end of the liquid channel can communicate with the outside, and is provided with an upper one-way valve.

5. The adjustable quantitative cover device according to claim 1 or 4, characterized in that: The cup cover constitutes a movable component, and the cup body constitutes a stationary component, and the movable component moves linearly relative to the stationary component.

6. The adjustable quantitative cover device according to claim 1 or 4, characterized in that: The cup cover constitutes a movable component, and the cup constitutes a stationary component, and the movable component performs rotational movement relative to the stationary component.

7. The adjustable quantitative cover device according to claim 1 or 4, characterized in that: The cup cover constitutes a movable component, and the cup constitutes a stationary component, and a return spring is arranged between the movable component and the stationary component.

8. The adjustable quantitative cover device according to claim 4, characterized in that: The barrier portion is formed integrally with the cup body cover.

9. The adjustable quantitative cover device according to claim 1 or 4, characterized in that: A first protrusion is arranged near the lower end of the cup cover, and a second protrusion is arranged near the upper end of the cup body. The second protrusion of the cup body cooperates with the first protrusion of the cup cover to form an upper dead point.

10. The adjustable dosing cover device according to claim 1 or 4, characterized in that: The cup body is divided into an upper part and a lower part by a partition, and the lower part of the cup body is mounted to the mouth of the container.

11. The adjustable quantitative cover device according to claim 1 or 4, characterized in that: The cup body is also provided with a balancing air hole for communicating the interior of the container with the outside, and a balancing air hole one-way valve is provided at the balancing air hole.

12. The adjustable dosing cover device according to claim 1 or 4, characterized in that: Volume scales indicating a certain amount are also arranged on the outer surface of the cup body.

13. The adjustable dosing cover device according to claim 1, characterized in that: The barrier member has an outer ring and an inner ring, wherein the outer ring is slidably and sealingly matched with the inner side wall of the cup body, and the inner ring forms a sealing plug.

14. The adjustable dosing cover device according to claim 1 or 4, characterized in that: A guide groove is arranged on one of the cup cover and the cup body, and a guide block is arranged on the other of the cup cover and the cup body. Through the cooperation of the guide groove and the guide block, the cup cover is rotated relative to the cup body to rise or fall.

15. The adjustable dosing cover device according to claim 1 or 4, characterized in that: The cup body cover includes a finger operation portion.

16. A liquid packaging container, comprising: An adjustable dosing cap device as claimed in any preceding claim; and at least one of a rigid container and a flexible container.

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