Cap unit and capped container

Abstract

The present invention provides a cap unit that allows for easy assembly and disassembly of tea filter components and improves the cleanability of the tea filter components. The cap unit of the present invention comprises: a cap body (8) that is detachably mounted relative to the container body (2) while being inserted into the inner side of the container body (2) with an upper opening; a waterproof gasket (20) that is installed on the outer periphery of the lower end side of the cap body (8) and seals the protrusion (7) provided inside the container body (2) between the cap body (8); and a tea filter component (10) that is detachably mounted relative to the cap body (8) and is installed in a state where it is sandwiched between the lower end of the cap body (8) and the waterproof gasket (20).

Description

Technical Field

[0001] This invention relates to a cap unit and a capped container. Background Technology

[0002] Conventionally, there have been containers with caps that have a cap unit (stopper) that closes the upper opening of the container body by being installed on the neck of the container body with an upper opening. There have also been containers with tea strainers that have a tea strainer for placing tea leaves or the like into the container body and extracting them (see, for example, Patent Documents 1 and 2 below).

[0003] Specifically, the following cited document 1 discloses a heat-insulating container with a tea strainer, which is a heat-insulating container consisting of a container body having a heat-insulating part between an inner cylinder and an outer cylinder, a mouth part that can be detachably installed at the upper opening of the container body, and a cover having a heat-insulating part covering the opening of the mouth part. The mouth part has a cylinder that is inserted into the container body, and a tea strainer mesh engaging part is formed at the lower end of the cylinder, and a tea strainer mesh is provided in the engaging part.

[0004] On the other hand, reference 2 below discloses a beverage container that includes a receiving section, a base section, and a cap section, and also includes a liner and a filter section. The receiving section contains a beverage, the base section has a pouring outlet for pouring out the beverage contained in the receiving section, the cap section is capable of closing the pouring outlet, the liner is installed on the base section to prevent leakage of the beverage contained in the receiving section, and the filter section is installed on the liner to filter the beverage when it is poured out from the pouring outlet.

[0005] Patent Document 1: Japanese Patent Application Publication No. 11-253312

[0006] Patent Document 2: Japanese Utility Model Registration No. 3215556

[0007] However, in the invention described in cited document 1 above, the tea filter screen is installed detachably from the cylinder by engaging the flange portion on the filter screen side with the engaging portion on the cylinder side. On the other hand, in the invention described in cited document 2, the filter section is installed detachably from the liner by engaging the locking portion on the filter section side with the locking portion on the liner side.

[0008] Taking into account the ease of cleaning the tea strainer mesh and filter section, it is desirable that the tea strainer mesh and filter section be easy to install and remove. Furthermore, the larger the diameter of the tea strainer mesh and filter section, the easier it is to remove and add tea leaves, etc.

[0009] However, if the diameter of the container body is increased according to the diameter of the tea strainer mesh and filter section, when a hot beverage is put into the container body and the lid is closed, the temperature of the beverage drops, the pressure inside the container body decreases (pressure reduction), and the cap unit is pulled inward to the inside of the container body, making it more difficult to open. Summary of the Invention

[0010] The present invention was made in view of the existing situation, and its object is to provide a cap unit that allows for easy assembly and disassembly of tea filter components and improves the cleanability of the tea filter components, as well as a capped container whose ease of use is further improved by having such a cap unit.

[0011] To achieve the above objectives, the present invention provides the following cap unit and capped container.

[0012] [1] A cap unit, characterized in that it comprises:

[0013] The cap body is installed and detached from the container body in a state where it is embedded inside the container body with the upper opening.

[0014] A waterproof liner is installed on the outer periphery of the lower end side of the cap body, sealing the protrusion located inside the container body with the cap body; and

[0015] The tea strainer components can be easily attached to and detached from the aforementioned cap body.

[0016] The aforementioned tea filter component is installed with the lower end of the cap body sandwiched between the waterproof liner.

[0017] [2] The cap unit described in [1] above is characterized in that,

[0018] The aforementioned tea filter components are rotatably mounted relative to the aforementioned cap body.

[0019] [3] The cap unit described in [2] above is characterized in that,

[0020] The aforementioned tea filter component includes: a tea filter body with an opening at the top; and a flange that protrudes from the upper end of the tea filter body in a direction of increasing diameter.

[0021] The aforementioned tea filter component is installed with the aforementioned flange sandwiched between the lower end of the aforementioned cap body and the aforementioned waterproof liner, and can rotate freely relative to the aforementioned cap body.

[0022] [4] The cap unit described in [3] above is characterized in that,

[0023] The aforementioned tea filter component has an inclined surface that slopes from the upper end of the tea filter body toward the front end of the flange portion.

[0024] At the lower end of the cap body, there is an abutting surface that abuts against the inclined surface.

[0025] [5] The cap unit according to any one of [1] to [4] above is characterized in that,

[0026] The cap body is installed and detached from the container body by screwing it on.

[0027] [6] The cap unit according to any one of [1] to [5] above is characterized in that,

[0028] The cap has a cover that, when inserted into the inside of the cap body, can be freely installed and removed from the cap body by screwing it on, thereby opening and closing the liquid passage provided at the bottom of the cap body.

[0029] [7] The cap unit described in [6] above is characterized in that,

[0030] The aforementioned cover has:

[0031] The top cover covers the upper part of the main body of the cap.

[0032] The middle bolt, while embedded inside the cap body, can be freely installed and detached from the cap body by screwing it on; and

[0033] A gasket is installed on the outer periphery of the lower end of the aforementioned plug to seal the area around the liquid passage of the aforementioned cap body with the aforementioned plug.

[0034] [8] A capped container, characterized in that it comprises:

[0035] The cap unit described in any of [1] to [7] above; and

[0036] The container body is equipped with the aforementioned cap unit.

[0037] [9] The capped container described in [8] above is characterized in that,

[0038] The container body described above has a vacuum insulation structure.

[0039] As described above, according to the present invention, it is possible to provide a cap unit that allows for easy assembly and disassembly of tea filter components and improves the cleanability of the tea filter components, as well as a capped container whose ease of use is further enhanced by having such a cap unit. Attached Figure Description

[0040] Figure 1 This is a perspective view showing the closed state of a capped container having a cap unit according to an embodiment of the present invention.

[0041] Figure 2 It means possessing Figure 1 A perspective view of the capped container of the shown cap unit in the open state.

[0042] Figure 3 It means possessing Figure 1 The diagram shows a cross-sectional view of the capped container of the capped unit in its closed state.

[0043] Figure 4 It means possessing Figure 2 The diagram shows a cross-sectional view of the capped container of the cap unit in the open state.

[0044] Figure 5 It means Figure 1 A three-dimensional view of the structure of the cap unit shown.

[0045] Figure 6 It means Figure 1 The exploded perspective view of the structure of the cap unit shown.

[0046] Figure 7 It means Figure 1 A three-dimensional view of the inner side of the cap unit shown.

[0047] Figure 8 It means in Figure 1 The diagram shows a three-dimensional view of the cap unit with the middle cover installed.

[0048] Figure 9 It means Figure 8 The diagram shows a three-dimensional view of the structure of the middle cover.

[0049] Explanation of reference numerals in the attached figures

[0050] 100…Capped container; 1…Cap unit; 2…Container body; 2d…Upper opening; 3…Outer container; 4…Inner container; 5…Vacuum insulation layer; 6…First internal thread; 7…Extend; 8…Cap body; 8a…Upper opening; 8b…Abutting surface; 9…Lid; 10…Tea filter component; 11…Liquid passage; 12…Bottom wall; 13…Peripheral wall; 14…Expanded wall; 15…Pouring outlet; 16…Groove; 17…Inclined surface; 18…Upper flange; 19…First external thread; 20…Waterproof gasket; 21…Lower flange; 22…Second internal thread; 23…Top cover; 24…Middle plug; 25…Holding part; 26…Second external thread; 27…Lid gasket; 28…Rib wall; 29…Tea filter body; 29c…Flange; 29d…Inclined surface; 30…Middle cover. Detailed Implementation

[0051] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0052] As one embodiment of the present invention, for example having Figures 1 to 7 The capped container 100 of the shown cap unit 1 will be described.

[0053] also, Figure 1 This is a perspective view showing the closed state of a capped container 100 equipped with cap unit 1. Figure 2 This is a perspective view showing the open state of a capped container 100 equipped with cap unit 1. Figure 3 This is a cross-sectional view showing the closed state of the capped container 100 with cap unit 1. Figure 4 This is a cross-sectional view showing the open state of the capped container 100 with cap unit 1. Figure 5 This is a three-dimensional diagram showing the structure of cap unit 1. Figure 6 This is an exploded 3D view showing the structure of cap unit 1. Figure 7 This is a three-dimensional view showing the inner side of cap unit 1.

[0054] like Figures 1-4 As shown, the capped container 100 of this embodiment is a tea filter container, that is, it has a cap unit 1 of this embodiment and a container body 2 for the cap unit 1 to be detachably installed, and has a tea filter for putting tea leaves or the like into the container body 2 and extracting them.

[0055] The container body 2, for example, has a bottomed cylindrical outer container 3 and an inner container 4 made of stainless steel or the like. It is a double-layered container formed by joining the openings of the inner container 4 inside the outer container 3. Furthermore, a vacuum insulation layer 5 is provided between the outer container 3 and the inner container 4. The vacuum insulation layer 5 can be formed, for example, by blocking an exhaust vent located at the center of the bottom surface of the outer container 3 within a chamber that has been depressurized (evacuated) to a high vacuum.

[0056] The container body 2 has: a generally circular bottom portion 2a; a cylindrical body portion 2b that rises vertically from the outer periphery of the bottom portion 2a into a generally cylindrical shape; and a generally cylindrical neck portion 2c that narrows at the upper part of the cylindrical body portion 2b. In addition, the upper end of the neck portion 2c serves as the upper opening portion 2d of the container body 2 and has a circular opening.

[0057] The inner circumferential surface of the neck 2c is narrower than the inner circumferential surface of the body 2b. Furthermore, a first internal thread 6 is provided on the inner circumferential surface of the neck 2c. The first internal thread 6 is composed of helical threads protruding downwards from the upper end of the neck 2c. Below the first internal thread 6, an annular protrusion 7 protrudes along the entire circumference of the inner circumference of the container body 2.

[0058] Furthermore, the capped container 100 of this embodiment has a generally cylindrical shape, but the shape of the capped container 100 is not particularly limited and can be appropriately changed according to size, appearance design, etc. In addition, painting, printing, etc., can also be performed on the outer peripheral surface of the container body 2.

[0059] like Figures 3-7 As shown, the cap unit 1 of this embodiment constitutes the plug of the upper opening 2d of the closed container body 2, and includes: a cap body 8; a cover 9, which is detachably mounted on the cap body 8; and a tea filter component 10, which is detachably mounted relative to the cap body 8.

[0060] The cap body 8 is made of a heat-resistant resin such as polypropylene (PP). The cap body 8 has: a liquid passage hole 11 communicating with the inside of the container body 2; a bottom wall portion 12 having the liquid passage hole 11 formed thereon; a peripheral wall portion 13 formed from the periphery of the bottom wall portion 12 upwards; an expanding wall portion 14 formed from the peripheral wall portion 13 upwards while gradually expanding in diameter; a pair of outlet portions 15, with a portion of the expanding wall portion 14 protruding in the expanding direction; and a pair of groove portions 16 continuous with the outlet portions 15 and formed by cutting a portion of the inner peripheral surface of the peripheral wall portion 13 toward the bottom wall portion 12.

[0061] The fluid passage 11 has a circular opening at the center of the bottom surface of the bottom wall portion 12. The bottom wall portion 12 slopes downward from the peripheral wall portion 13 toward the fluid passage 11 (narrowing diameter). The peripheral wall portion 13 has the same diameter (cylindrical shape) between the bottom wall portion 12 and the expanding wall portion 14. The expanding wall portion 14 slopes upward from the peripheral wall portion 13 toward the upper end of the cap body 8 (expanding diameter).

[0062] A pair of outlet portions 15 are symmetrically arranged opposite each other to the expanding wall portions 14. Each outlet portion 15 is wider than the expanding wall portion 14 by protruding a portion of the expanding wall portion 14 in the expanding diameter direction and tilting from the peripheral wall portion 13 toward the upper end of the cap body 8. As a result, the upper end of the cap body 8 has an opening of approximately elliptical shape as the upper opening portion 8a of the cap body 8.

[0063] A pair of grooves 16 are symmetrically arranged opposite each other on the peripheral wall portion 13. Each groove 16 has a cut in the vertical direction with a constant width corresponding to the outlet portion 15.

[0064] On the inner side of the cap body 8, an inclined surface 17 is provided all around the circumference, which slopes from the upper end of the peripheral wall portion 13 toward the expanded wall portion 14. On the other hand, on the outer side of the cap body 8, an upper flange portion 18 is provided all around the circumference, which protrudes from between the peripheral wall portion 13 and the expanded wall portion 14 in the direction of diameter expansion.

[0065] A first external thread 19 is provided on the outer peripheral surface of the peripheral wall portion 13 (cap body 8). The first external thread 19 is composed of spiral threads protruding upward from the lower end side of the peripheral wall portion 13. Thus, the cap body 8 is inserted into the inner side of the container body 2 from the upper opening 2d, and can be freely installed and removed from the container body 2 by screwing the threads constituting the first internal thread 6 and the first external thread 19 together.

[0066] In addition, when the cap body 8 is installed on the neck 2c of the container body 2, it abuts against the upper end of the neck 2c through the upper flange 18, thereby covering the upper opening 2d of the container body 2.

[0067] A waterproof gasket 20 is detachably installed on the outer periphery of the lower end side of the peripheral wall portion 13 (cap body 8). The waterproof gasket 20 is an annular sealing component that seals the inner side of the container body 2 and the cap body 8. It is made of elastic components such as heat-resistant rubber or elastomers, for example.

[0068] A lower flange 21 is provided on the outer periphery of the lower end side of the cap body 8, protruding in the direction of diameter expansion. On the other hand, annular fitting recesses 20a are provided all around the inner periphery of the waterproof liner 20. With the lower flange 21 fitted into the fitting recesses 20a, the waterproof liner 20 is fitted all around the outer periphery of the lower end side of the cap body 8.

[0069] Additionally, an elastic flange portion 20b is provided on the outer periphery of the waterproof liner 20. The elastic flange portion 20b has a shape that curves downward from the upper end of the outer periphery of the waterproof liner 20 while protruding downward.

[0070] When the cap body 8 is installed onto the container body 2, the waterproof gasket 20 becomes an elastic flange 20b that elastically deforms and fits tightly against the protrusion 7 throughout its entire circumference. This allows for a seal between the protrusion 7 and the cap body 8.

[0071] On the other hand, the waterproof liner 20 can be removed from the outer periphery of the lower end of the cap body 8 by its own elastic deformation (stretching). As a result, the waterproof liner 20 and the cap body 8 can be washed separately and independently, and the waterproof liner 20 and the cap body 8 can be kept hygienic.

[0072] A second internal thread portion 22 is provided on the inner circumferential surface of the peripheral wall portion 13 (cap body 8). The second internal thread portion 22 is composed of spiral threads protruding downward from the upper end side of the peripheral wall portion 13.

[0073] The cover 9 is the part that opens and closes the liquid passage 11, and for example, it has an upper cover 23 and a middle plug 24 made of heat-resistant resin such as PP.

[0074] The upper cover 23 covers the upper part of the cap body 8 and has a generally elliptical shape corresponding to the upper opening 8a of the cap body 8, forming a flat plate. Additionally, a gripping part 25 is provided on the upper part of the upper cover 23. The gripping part 25 is a part for the user to hold and is designed to protrude from the center of the upper surface of the upper cover 23 in a fin-like shape.

[0075] The middle bolt 24 is a portion embedded inside the cap body 8, having a generally cylindrical shape with a bottom, and is integrally mounted to the center of the lower surface of the upper cover 23 by means of welding or the like. Inside the middle bolt 24, as a heat insulation layer, a heat insulation material S made of foamed polyurethane resin or the like is disposed, for example. Alternatively, air (void) may be used as the heat insulation layer instead of the aforementioned heat insulation material S.

[0076] A second external thread portion 26 is provided on the outer peripheral surface of the middle bolt 24. The second external thread portion 26 is composed of spiral threads protruding upward from the lower end side of the outer peripheral surface of the middle bolt 24. Thus, the cap 9 is inserted into the inner side of the cap body 8 from the upper opening 8a, and can be freely installed and removed from the cap body 8 by screwing the threads constituting the second internal thread portion 22 and the second external thread portion 26 together.

[0077] Furthermore, the second internal thread portion 22 and the second external thread portion 26 are composed of complementary double-ended threads. When using double-ended threads, the cap 9 can be installed and removed with minimal rotation relative to the cap body 8 (approximately 450° in this embodiment).

[0078] A cap gasket 27 is detachably installed on the outer periphery of the lower end side of the plug 24. The cap gasket 27 is an annular sealing component that seals the area around the liquid passage 11 of the bottom wall portion 12 (inner side of the cap body 8) with the plug 24. Similar to the waterproof gasket 20 described above, it is made of elastic components such as heat-resistant rubber or elastomers, for example.

[0079] On the outer periphery of the lower end side of the bolt 24, an annular fitting groove 24a is provided all around the circumference. The cover gasket 27 is fitted into the fitting groove 24a all around the circumference.

[0080] When the cover 9 is installed onto the cap body 8, the gasket 27 is in a state where it elastically deforms and fits tightly around the fluid inlet 11 all over the circumference. As a result, the fluid inlet 11 (inner side of the cap body 8) and the plug 24 (cover 9) can be sealed.

[0081] On the other hand, the cover gasket 27 can be removed from the outer periphery of the lower end of the stopper 24 by elastically deforming (stretching). Thus, the cover gasket 27 and the cover body 9 can be cleaned independently, and the cover gasket 27 and the cover body 9 can be kept hygienic.

[0082] A pair of symmetrical ribs 28 are provided at opposite positions to the center bolt 24. Each rib 28 is located above the second external thread portion 26 and is configured to extend circumferentially from the outer peripheral surface of the center bolt 24 and protrude in the diameter-expanding direction. Furthermore, the rib 28 is configured to protrude further in the diameter-expanding direction than the thread teeth forming the second external thread portion 26. Also, the rib 28 is configured to extend circumferentially wider than the width of the groove portion 16.

[0083] The tea filter component 10 constitutes a tea filter, for example, having a bottomed, generally cylindrical tea filter body 29 made of heat-resistant resin such as PP. In addition, the inner diameter of the tea filter body 29 (tea filter component 10) is the same as the inner diameter of the liquid passage 11.

[0084] Around the tea strainer body 29, a plurality of slits 29a extending in the vertical direction are arranged in both the vertical and circumferential directions. In addition, at the bottom of the tea strainer body 29, a plurality of slits 29a extending in the circumferential direction are arranged in concentric circles.

[0085] The upper end of the tea strainer body 29 serves as the upper opening 29b of the tea strainer body 29, and the opening is circular. Furthermore, a flange 29c protrudes from the upper end of the tea strainer body 29 in the direction of widening. Also, an inclined surface 29d is provided at the upper end of the tea strainer body 29, which slopes upwards from the outer periphery of the flange 29c, narrowing in diameter.

[0086] On the other hand, at the lower end of the cap body 8, there is an abutment surface 8b that abuts against the inclined surface 29d. The abutment surface 8b is configured to slope inwards along the entire circumference of the lower cylinder portion 8c, which protrudes downwards from around the liquid passage 11 of the bottom wall portion 12.

[0087] The tea filter component 10 is installed with the flange portion 29c held between the lower end (lower cylinder portion 8c) of the cap body 8 and the waterproof gasket 20, and can rotate freely relative to the cap body 8.

[0088] In the cap unit 1 of this embodiment with the structure described above, when the tea filter component 10 is installed onto the cap body 8, the tea filter component 10 is rotated while being pressed towards the bottom of the cap body 8, thereby causing the waterproof gasket 20 to elastically deform. This allows the flange portion 29c to be easily clamped between the lower end (lower cylinder portion 8c) of the cap body 8 and the waterproof gasket 20. As a result, the tea filter component 10 can be installed relative to the cap body 8 in an easy and stable manner.

[0089] On the other hand, in the cap unit 1 of this embodiment, the tea filter component 10 is easy to install and remove from the cap body 8 when it is removed from the container body 2, and the cap unit 1 can also be installed on the container body 2 for use even when the tea filter component 10 is removed. Furthermore, by making the inner diameter of the tea filter component 10 the same as the inner diameter of the liquid passage 11, it becomes easier to remove and insert tea leaves or the like from the tea filter component 10. This improves the cleanability of the tea filter component 10.

[0090] In the capped container 100 equipped with the cap unit 1 of this embodiment, from Figure 1 and Figure 3 From the state shown where the cover 9 is closed by the liquid passage 11, the cover 9 is rotated in the opening direction within a specified angle range (approximately 90°), thereby... Figure 2 and Figure 4 As shown, the container is in a state where the pouring outlet 15 and the liquid inlet 11 are open. From this state, by tilting the container body 2, the beverage (liquid) inside the container body 2 can be poured out from the liquid inlet 11 through the trough 16 and the pouring outlet 15 into a cup or the like without removing the cap 9 from the cap body 8.

[0091] In the cap unit 1 of this embodiment, when the pair of outlet portions 15 and the liquid passage holes 11 are open, the pair of rib walls 28 are facing the pair of outlet portions 15. In addition, when the pair of rib walls 28 are facing the pair of outlet portions 15, the two sides of the rib walls 28 separated by the outlet portions 15 are at a height position opposite to the inclined surface 17.

[0092] Therefore, in the cap unit 1 of this embodiment, when the beverage (liquid) is poured out of the container body 2 through the groove 16 and the pouring outlet 15, the beverage hits the rib wall 28, thereby limiting the flow rate of the beverage flowing out through the groove 16 and the pouring outlet 15 and stabilizing it. As a result, in the cap unit 1 of this embodiment, it is possible to prevent the beverage from pulsating and spreading, and to prevent the beverage from becoming less liquid.

[0093] As described above, the ease of use can be further improved in the capped container 100 equipped with the cap unit 1 of this embodiment.

[0094] Furthermore, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

[0095] For example, in the cap unit 1 described above, it is also possible to install, for example, a structure based on the above-described structure. Figure 8 and Figure 9 The structure of the middle cover 30 is shown. Furthermore... Figure 8 This is a perspective view showing the state in which the middle cover 30 is installed in the cap unit 1. Figure 9 This is a three-dimensional diagram showing the structure of the middle cover 30.

[0096] The middle cover 30 is made of a heat-resistant resin such as polypropylene (PP) and has a circular plate shape corresponding to the liquid passage 11. Furthermore, the middle cover 30 has a plurality of slits 30a arranged in a direction orthogonal to one direction extending in that direction. A pair of feet 30b are provided on the outer periphery of the lower surface side of the middle cover 30. The pair of feet 30b are positioned opposite each other around the middle cover 30, extending circumferentially and protruding downwards.

[0097] The middle cover 30 is detachably mounted relative to the cap body 8 by fitting a pair of feet 30b into the upper opening 29b of the tea strainer body 29.

[0098] In the cap unit 1 equipped with such a middle cover 30, the tea leaves contained in the tea filter component 10 and the beverage (liquid) in the container body 2 can be prevented from flowing out of the liquid passage 11 together through the middle cover 30.

[0099] Furthermore, the cap unit 1 described above is not necessarily limited to the structure of the tea filter component 10 with multiple slits 29a provided on the tea filter body 29. For example, a tea filter component 10 with multiple holes provided in a mesh shape on the tea filter body 29 can also be used.

[0100] Furthermore, in the above embodiments, a capped container 100 with heat preservation and cold preservation functions by having a container body 2 with the above-described vacuum insulation structure was exemplified, but the present invention can be applied to capped containers with a container body that does not have a vacuum insulation structure.

Claims

1. A cap unit, characterized in that, have: The cap body is installed and detached from the container body in a state where it is embedded inside the container body with the upper opening; A waterproof liner is installed on the outer periphery of the lower end side of the cap body to seal the protrusion located inside the container body with the cap body; as well as The tea filter component is detachably mounted and detachable from the cap body. The tea filter component includes: a tea filter body with an opening at the top; The tea strainer body includes a flange that protrudes from its upper end in the expanding direction, and an inclined surface that slopes from the upper end of the tea strainer body toward the front end of the flange. At the lower end of the cap body, there is an abutment surface that abuts against the inclined surface. By rotating the tea filter component while pressing it against the bottom of the cap body from below, the waterproof liner elastically deforms, causing the flange to extend over and rest on the waterproof liner, with the inclined surface abutting against the contact surface. With the flange sandwiched between the lower end of the cap body and the waterproof liner, the tea filter component is installed between the lower end of the cap body and the waterproof liner.

2. The cap unit according to claim 1, characterized in that, The tea filter component is rotatably mounted relative to the cap body.

3. The cap unit according to claim 1 or 2, characterized in that, The cap body is screwed on and detached from the container body.

4. The cap unit according to claim 1 or 2, characterized in that, The device includes a cover that, when inserted into the inner side of the cap body, can be freely installed and removed from the cap body by screwing it on, thereby opening and closing the liquid passage hole located at the bottom of the cap body.

5. The cap unit according to claim 4, characterized in that, The cover has: The top cover covers the upper part of the main body of the cap; The middle bolt, while embedded inside the cap body, can be freely installed and removed from the cap body by screwing it on; as well as A gasket is installed on the outer periphery of the lower end of the plug to seal the area around the liquid passage of the cap body with the plug.

6. A capped container, characterized in that, have: The cap unit according to any one of claims 1 to 5; and The container body is equipped with the cap unit.

7. The capped container according to claim 6, characterized in that, The container body has a vacuum insulation structure.

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