Cover assembly with automatic opening and closing function

Abstract

The utility model discloses a cover component with an automatic opening and closing function, which is characterized in that an opening and closing auxiliary mechanism is arranged on an upper cover, and the opening and closing auxiliary mechanism can move relative to the upper cover in the corresponding action process of a base so as to assist the upper cover to correspondingly rotate relative to the base and further automatically open a liquid outlet in front of the upper cover; therefore, the upper cover can rotate correspondingly to open the liquid outlet only by operating the base to act correspondingly by a user, the user does not need to operate the upper cover manually additionally, and the liquid outlet structure has the advantages of being easy and convenient to operate, convenient to open and reasonable in design.

Description

Technical Field

[0001] The utility model relates to a packaging container, in particular to a cover assembly with automatic opening and closing functions. Background Art

[0002] The mouth of an existing container is generally connected to a top cover by a pivotal connection. Before use, the user needs to manually press one end of the top cover to rotate the top cover accordingly to open the container mouth. After use, the user also needs to manually press the other end of the top cover to rotate the top cover accordingly to close the container mouth. This design structure has the problem of inconvenient operation.

[0003] In addition, some upper covers are fixed with a configuration block at one end thereof to assist the upper cover in opening. However, the above-mentioned counterweight block structure cannot achieve the function of assisting the upper cover to automatically close, and also causes problems such as unstable closing and non-sealing.

[0004] For this reason, the present invention is studied and proposed in view of the above problems. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a lid assembly with an automatic opening and closing function. The upper cover is provided with an opening and closing auxiliary mechanism which can move relative to the upper cover when the base moves accordingly to assist the upper cover to rotate accordingly relative to the base, thereby automatically opening the liquid outlet in front of the upper cover. To this end, the utility model only requires the user to operate the base accordingly to rotate the upper cover accordingly to open the liquid outlet, and the user does not need to manually operate the upper cover. The utility model has the characteristics of simple operation, easy opening and reasonable design.

[0006] The utility model is realized through the following technical solutions:

[0007] A lid assembly with an automatic opening and closing function includes a base 1, the base 1 is provided with a liquid outlet 11, the base 1 is rotatably connected to an upper cover 2, the upper cover 2 has an upper cover front portion 21 and an upper cover rear portion 22, the upper cover front portion 21 can cover the liquid outlet 11, and the upper cover 2 is provided with an opening and closing auxiliary mechanism 3, which can move relative to the upper cover 2 when the base 1 is in a corresponding action to assist the upper cover 2 to rotate relative to the base 1, thereby causing the upper cover front portion 21 to automatically open the liquid outlet 11.

[0008] As described above, in a lid assembly with automatic opening and closing functions, the opening and closing auxiliary mechanism 3 is configured to move relative to the upper cover 2 during the corresponding movement of the base 1 to assist the upper cover 2 in rotating relative to the base 1, thereby allowing the front portion 21 of the upper cover to automatically cover the liquid outlet 11.

[0009] As described above, a lid assembly with an automatic opening and closing function, wherein the opening and closing assisting mechanism 3 includes an opening and closing assisting movable member 31 provided on the upper lid 2 and capable of moving correspondingly in the front-rear direction of the upper lid 2.

[0010] As described above, a lid assembly with an automatic opening and closing function, wherein the opening and closing assisting movable member 31 is configured to assist the front part 21 of the upper lid to automatically open the liquid outlet 11 during the movement from the front part 21 to the rear part 22 of the upper lid.

[0011] And / or, the opening and closing assisting movable member 31 is further configured to assist the front part 21 of the upper lid to automatically close the liquid outlet 11 during the movement from the rear part 22 to the front part 21 of the upper lid.

[0012] As described above, a lid assembly with an automatic opening and closing function, wherein the opening and closing assisting mechanism 3 further includes an opening and closing assisting sliding groove 32 provided on the upper lid 2 and extending in the front-rear direction of the upper lid 2, and the opening and closing assisting movable member 31 is movably arranged in the opening and closing assisting sliding groove 32.

[0013] As described above, a lid assembly with an automatic opening and closing function, wherein the opening and closing assisting sliding groove 32 is configured to extend from the front part 21 to the rear part 22 of the upper lid.

[0014] Or, the opening and closing assisting sliding groove 32 extends from the rotation point position of the upper lid 2 to the rear part 22 of the upper lid.

[0015] As described above, a lid assembly with an automatic opening and closing function, wherein the opening and closing assisting sliding groove 32 is provided with a movable member blocking portion 321 for blocking the corresponding movement of the opening and closing assisting movable member 31.

[0016] As described above, a lid assembly with an automatic opening and closing function, wherein the movable member blocking portion 321 is a movable member blocking inclined wall provided at the bottom of the opening and closing assisting sliding groove 32.

[0017] Or, the movable member blocking portion 321 is a movable member blocking groove provided at the bottom of the opening and closing assisting sliding groove 32.

[0018] As described above, a lid assembly with an automatic opening and closing function, wherein a pivot hole 12 is provided on the base 1 or the upper lid 2, and correspondingly, a pivot shaft 23 pivotally engaged with the pivot hole 12 is provided on the upper lid 2 or the base 1.

[0019] As described above, a lid assembly with an automatic opening and closing function, wherein an upper lid connecting ear 24 is provided on the side of the upper lid 2, and the pivot shaft 23 is provided on the upper lid connecting ear 24; a positioning notch 13 for allowing the upper lid connecting ear 24 to enter and be positioned is provided on the base 1.

[0020] Compared with the prior art, the present utility model has the following advantages:

[0021] 1. When the present utility model is in use, the operation base tilts backward. At this moment, the opening and closing auxiliary moving part of the opening and closing auxiliary mechanism moves from the front part of the upper cover to the rear part of the upper cover, making the weight of the rear part of the upper cover increase (or making the weight of the rear part of the upper cover greater than that of the front part of the upper cover). As a result, the rear part of the upper cover rotates downward around the rotation axis between the upper cover and the base, and the front part of the upper cover rotates upward around the rotation axis between the upper cover and the base to open the liquid outlet. Then, by tilting the operation base forward, the liquid can be poured out. At the same time, the opening and closing auxiliary moving part moves in the direction from the rear part of the upper cover to the front part of the upper cover to reset, making the weight of the front part of the upper cover increase or the weight of the front part of the upper cover equal to that of the rear part of the upper cover. When the base is placed upright, the front part of the upper cover will automatically cover the liquid outlet. Therefore, by adopting the present utility model, the upper cover can be automatically opened and closed, with the characteristics of simple operation, convenient opening, reliable closing, and reasonable design.

[0022] 2. The opening and closing auxiliary chute is provided with a moving part blocking portion that can be used to prevent the corresponding movement of the opening and closing auxiliary moving part, which can effectively avoid the problem of the upper cover automatically opening and closing due to the automatic movement of the opening and closing auxiliary moving part during handling, placing, etc., and at the same time ensure that the front part of the upper cover stably covers the liquid outlet. Description of the Drawings

[0023] The following further details the specific embodiments of the present utility model with reference to the drawings, where:

[0024] Figure 1 It is a perspective view when the front part of the upper cover covers the liquid outlet in Embodiment 1 of the present utility model.

[0025] Figure 2 It is a cross-sectional view when the front part of the upper cover covers the liquid outlet in Embodiment 1 of the present utility model.

[0026] Figure 3 It is one of the perspective views when the front part of the upper cover opens the liquid outlet in Embodiment 1 of the present utility model.

[0027] Figure 4 It is a cross-sectional view when the front part of the upper cover opens the liquid outlet in Embodiment 1 of the present utility model.

[0028] Figure 5 It is the second perspective view when the front part of the upper cover opens the liquid outlet in Embodiment 1 of the present utility model.

[0029] Figure 6 It is a cross-sectional view when taking liquid with an inclination in Embodiment 1 of the present utility model.

[0030] Figure 7 It is a perspective view when the front part of the upper cover covers the liquid outlet in Embodiment 2 of the present utility model.

[0031] Figure 8 It is a cross-sectional view when the base tilts backward in Embodiment 2 of the present utility model.

[0032] Figure 9 This is a cross-sectional view during inclined liquid extraction in Embodiment 2 of the present utility model.

[0033] Figure 10 This is a cross-sectional view when the front part of the upper cover closes the liquid outlet in Embodiment 3 of the present utility model.

[0034] Figure 11 This is a perspective view when the front part of the upper cover closes the liquid outlet in Embodiment 4 of the present utility model.

[0035] Figure 12 This is a cross-sectional view when the front part of the upper cover closes the liquid outlet in Embodiment 4 of the present utility model.

[0036] Figure 13 This is an exploded view of Embodiment 4 of the present utility model. Detailed implementation manners

[0037] The following will make a detailed description of the implementation manners of the present utility model in conjunction with the accompanying drawings.

[0038] As Figures 1-13 shown, a cover assembly with an automatic opening and closing function of the present utility model includes a base 1, a liquid outlet 11 is provided on the base 1, an upper cover 2 is rotatably connected to the base 1, the upper cover 2 has a front part 21 of the upper cover and a rear part 22 of the upper cover, the front part 21 of the upper cover can cover the liquid outlet 11, and an opening and closing auxiliary mechanism 3 is provided on the upper cover 2 which can move relative to the upper cover 2 during the corresponding movement of the base 1 to assist the upper cover 2 to rotate relative to the base 1 correspondingly, so that the front part 21 of the upper cover automatically opens the liquid outlet 11. When the present utility model is in use, the base is operated to tilt backward. At this moment, the opening and closing auxiliary moving part of the opening and closing auxiliary mechanism moves from the front part of the upper cover to the rear part of the upper cover, making the weight of the rear part of the upper cover increase (or making the weight of the rear part of the upper cover greater than the weight of the front part of the upper cover). As a result, the rear part of the upper cover rotates downward around the rotation axis between the upper cover and the base, and the front part of the upper cover rotates upward around the rotation axis between the upper cover and the base to open the liquid outlet; then the base is operated to tilt forward to pour out the liquid. At the same time, the opening and closing auxiliary moving part moves from the rear part of the upper cover to the front part of the upper cover to reset, making the weight of the front part of the upper cover increase or the weight of the front part of the upper cover be the same as the weight of the rear part of the upper cover. When the base is placed upright, the front part of the upper cover will automatically cover the liquid outlet. Therefore, by adopting the present utility model, the upper cover can be automatically opened and closed, which has the characteristics of simple operation, convenient opening, reliable closing, and reasonable design.

[0039] In the present utility model, the front part 21 of the upper cover and the rear part 22 of the upper cover are respectively located on both sides of the rotation axis between the upper cover and the base, and the weights of the front part 21 of the upper cover and the rear part 22 of the upper cover can be configured to be equal.

[0040] The rotation opening angle of the front part 21 of the upper cover of the present utility model relative to the base 1 is about 0 - 90°.

[0041] As Figures 1-13 shown, in order to improve the sealing performance, a sealing member for sealing the liquid outlet 11 is provided on the base 1. In this embodiment, the sealing member is destructively connected to the base. In some other embodiments, the sealing member is movably provided on the base 1, automatically opening the liquid outlet during liquid extraction and automatically blocking the liquid outlet when liquid extraction stops.

[0042] In order to make the front part of the upper cover cover the liquid outlet more reliably, the opening and closing assisting mechanism 3 is configured to be movable relative to the upper cover 2 during the corresponding movement of the base 1 to assist the upper cover 2 to rotate relative to the base 1 correspondingly, so that the front part 21 of the upper cover automatically covers the liquid outlet 11.

[0043] In order to better control the opening and closing of the upper cover, the opening and closing assisting mechanism 3 includes an opening and closing assisting movable member 31 provided on the upper cover 2 and movable correspondingly along the front-back direction of the upper cover 2. Further, the opening and closing assisting movable member 31 is spherical or cylindrical, such as a movable column, a movable bead, etc., which is convenient for moving relative to the upper cover.

[0044] Further, the opening and closing assisting movable member 31 is configured to assist the front part 21 of the upper cover to automatically open the liquid outlet 11 during the movement from the front part 21 to the rear part 22 of the upper cover.

[0045] Further, the opening and closing assisting movable member 31 is also configured to assist the front part 21 of the upper cover to automatically cover the liquid outlet 11 during the movement from the rear part 22 to the front part 21 of the upper cover.

[0046] In order to ensure the smooth movement of the opening and closing assisting movable member along the set direction, the opening and closing assisting mechanism 3 further includes an opening and closing assisting sliding groove 32 provided on the upper cover 2 and extending along the front-back direction of the upper cover 2, and the opening and closing assisting movable member 31 is movably provided in the opening and closing assisting sliding groove 32.

[0047] As Figures 1-6 shown, the opening and closing assisting sliding groove 32 is configured to extend from the front part 21 to the rear part 22 of the upper cover.

[0048] As Figures 7-13 shown, the opening and closing assisting sliding groove 32 extends from the rotation point position of the upper cover 2 to the rear part 22 of the upper cover. When the opening and closing assisting movable member 31 is at the rotation point position of the upper cover 2, the weight of the rear part of the upper cover and the weight of the front part of the upper cover are in balance at this moment.

[0049] An movable member blocking portion 321 for blocking the corresponding movement of the opening and closing assisting movable member 31 is provided on the opening and closing assisting sliding groove 32, which can effectively avoid the problem that the upper cover automatically opens and closes due to the automatic movement of the opening and closing assisting movable member during handling, placing, etc., and at the same time ensure that the front part of the upper cover stably covers the liquid outlet.

[0050] As shown Figures 1-6 in FIG. Figures 1-6 , the movable part blocking portion 321 is a movable part blocking inclined wall provided at the bottom of the opening / closing auxiliary chute 32. As shown Figure 2 in FIG. Figure 2 , this movable part blocking inclined wall is inclined upward from the front part of the upper cover to the rear part of the upper cover and extends to the rotation point position of the upper cover. Alternatively, the bottom of the opening / closing auxiliary chute 32 includes a smooth wall provided at the rear position of the upper cover and an inclined wall provided at the front position of the upper cover, and a transition wall is provided between the inclined wall and the smooth wall, as shown Figure 2 in FIG. Figure 2 .

[0051] As shown Figures 10-13 in FIG. Figures 10-13 , the movable part blocking portion 321 is a movable part blocking groove provided at the bottom of the opening / closing auxiliary chute 32. In this embodiment, the movable part blocking groove is located at the rotation point position of the upper cover. When the opening / closing auxiliary movable part 31 enters the movable part blocking groove, at this moment, the weight of the rear part of the upper cover and the weight of the front part of the upper cover are in balance. In order to facilitate the opening / closing auxiliary movable part to enter or disengage from the movable part blocking groove, a guiding arc surface / bevel surface is provided at the notch of the movable part blocking groove.

[0052] As shown Figures 1-13 in FIG. Figures 1-13 , for reliable rotational connection, a pivot hole 12 is provided on the base 1 or the upper cover 2, and correspondingly, a pivot shaft 23 pivotally engaged with the pivot hole 12 is provided on the upper cover 2 or the base 1.

[0053] As shown Figures 1-13 in FIG. Figures 1-13 , for accurate positioning and facilitating the front part of the upper cover to accurately cover the liquid outlet, a connecting ear 24 of the upper cover is provided on the side of the upper cover 2, and the pivot shaft 23 is provided on the connecting ear 24 of the upper cover; a positioning notch 13 for allowing the connecting ear 24 of the upper cover to enter for positioning is provided on the base 1. In this embodiment, the connecting ear 24 of the upper cover includes a first connecting portion and a second connecting portion. The inner end of the first connecting portion is connected to the side wall of the upper cover, the outer end of the first connecting portion is connected to the corresponding end of the second connecting portion, and the second connecting portion extends along the front-back direction of the upper cover, and the pivot shaft 23 is provided inside the second connecting portion.

[0054] For smooth liquid discharge, a liquid discharge cylinder for communicating with the inner cavity of the container is provided on the base 1, the liquid outlet is formed by the upper port of the liquid discharge cylinder or provided on the liquid discharge cylinder, and a drainage portion extending outward and turned up is provided at the edge of the upper port of the liquid discharge cylinder, as shown Figure 2 、 8 、10, 12 in FIG. 8 .

[0055] As shown Figures 1-13 in FIG. Figures 1-13 , for better sealing, the front part 21 of the upper cover is provided with a front inner plug that can be inserted into the liquid outlet 11 to block the liquid outlet 11

[0056] As shown Figures 1-13As shown, for convenient use, an upper cover auxiliary opening member for assisting the upper cover 2 to rotate and open or close is provided on the upper cover 2. In this embodiment, the upper cover auxiliary opening member is an upper cover opening rib provided at the front part of the upper cover.

Claims

1. A lid assembly with an automatic opening and closing function, characterized in that It includes a base (1) provided with a liquid outlet (11) thereon. A top cover (2) is rotatably connected to the base (1). The top cover (2) has a front part (21) and a rear part (22). The front part (21) of the top cover can cover the liquid outlet (11). An opening and closing assisting mechanism (3) is provided on the top cover (2) which can move relative to the top cover (2) during the corresponding movement of the base (1) to assist the top cover (2) to rotate relative to the base (1) accordingly, so that the front part (21) of the top cover automatically opens the liquid outlet (11).

2. The lid assembly with an automatic opening and closing function according to claim 1, characterized in that The opening and closing assisting mechanism (3) is configured to move relative to the top cover (2) during the corresponding movement of the base (1) to assist the top cover (2) to rotate relative to the base (1) accordingly, so that the front part (21) of the top cover automatically covers the liquid outlet (11).

3. The cover assembly with an automatic opening and closing function according to claim 1, wherein The opening and closing assisting mechanism (3) includes an opening and closing assisting movable member (31) provided on the top cover (2) and capable of moving correspondingly in the front-rear direction of the top cover (2).

4. The cover assembly with an automatic opening and closing function according to claim 3, characterized in that The opening and closing assisting movable member (31) is configured to assist the front part (21) of the top cover to automatically open the liquid outlet (11) during the movement from the front part (21) to the rear part (22) of the top cover; and / or, the opening and closing assisting movable member (31) is further configured to assist the front part (21) of the top cover to automatically cover the liquid outlet (11) during the movement from the rear part (22) to the front part (21) of the top cover.

5. The lid assembly with an automatic opening and closing function according to claim 3, characterized in that The opening and closing assisting mechanism (3) further includes an opening and closing assisting sliding groove (32) provided on the top cover (2) and extending in the front-rear direction of the top cover (2). The opening and closing assisting movable member (31) is movably arranged in the opening and closing assisting sliding groove (32).

6. The cover assembly with an automatic opening and closing function according to claim 5, characterized in that The opening and closing assisting sliding groove (32) is configured to extend from the front part (21) of the top cover to the rear part (22); or, the opening and closing assisting sliding groove (32) extends from the rotation point position of the top cover (2) to the rear part (22).

7. The lid assembly with an automatic opening and closing function according to claim 5, characterized in that An activity member blocking part (321) for blocking the corresponding movement of the opening and closing assisting movable member (31) is provided on the opening and closing assisting sliding groove (32).

8. The cover assembly with an automatic opening and closing function according to claim 7, characterized in that The activity member blocking part (321) is an activity member blocking inclined wall provided at the bottom of the opening and closing assisting sliding groove (32); or, the activity member blocking part (321) is an activity member blocking groove provided at the bottom of the opening and closing assisting sliding groove (32).

9. The cover assembly with an automatic opening and closing function according to any one of claims 1-8, characterized in that A pivot hole (12) is provided on the base (1) or the top cover (2). Correspondingly, a pivot shaft (23) pivotally mating with the pivot hole (12) is provided on the top cover (2) or the base (1).

10. The lid assembly with an automatic opening and closing function according to claim 9, characterized in that A top cover connecting ear (24) is provided on the side of the top cover (2). The pivot shaft (23) is provided on the top cover connecting ear (24). A positioning notch (13) for allowing the top cover connecting ear (24) to enter and be positioned is provided on the base (1).

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