Sealing tank

Abstract

The utility model discloses a sealing tank which comprises a tank body and an inner cover, and the tank body comprises a tank opening part; the inner cover comprises a sealing piece and a cover body, and the sealing piece is cylindrical and sleeves the periphery of the cover body; the periphery of the cover body is fixedly connected with a second annular boss, the periphery of the second annular boss extends downwards to form a second connecting part, and an annular groove is formed between the second annular boss and the second connecting part. The periphery of the upper end of the sealing piece extends outwards to form a first annular boss, the first annular boss is embedded into the annular groove, and the upper side of the first annular boss is attached to the lower side of the second annular boss. The inner cover is used for sealing the can opening part, the cover body can partially extend into the can opening part, the outer periphery of the cover body and the inner periphery of the can opening part are sealed through a sealing piece, and the second annular boss, the first annular boss and the end face of the can opening part can abut against one another to be sealed. According to the utility model, the problem that the contact sealing at the tank opening end is not tight due to insufficient pressure of the cover body can be avoided, and better sealing performance can be kept.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging containers, and more particularly to a sealed container. Background Technology

[0002] Most sealed containers on the market currently use a sealing gasket embedded in the lid. Pressure is applied to the lid to make the gasket tightly contact the can opening, achieving a seal. When the lid is closed, the sealing gasket and the end face of the can opening press against each other to achieve a seal; however, the sealing area is relatively narrow.

[0003] When the lid and the mouth of the can are connected by a snap-fit ​​structure, insufficient pressure between the lid and the mouth of the can will prevent the sealing gasket from fitting tightly to the end of the mouth of the can, thus failing to maintain good sealing performance. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a sealing can with a lid that can extend into the can opening, increasing the contact area between the lid and the can opening, thereby improving the sealing effect of the sealing can.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sealed container includes a container body and an inner lid, the container body including a container opening;

[0007] The inner cover includes a sealing element and a cover body. The sealing element is cylindrical and is fitted around the outer periphery of the cover body.

[0008] The outer periphery of the cover is fixedly connected to an annular boss two, the outer periphery of the annular boss two extends downward to form a connecting part two, and an annular groove is formed between the annular boss two and the connecting part two.

[0009] The upper outer periphery of the seal extends outward to form an annular boss one, which is embedded in the annular groove, and the upper side of the annular boss one is in contact with the lower side of the annular boss two.

[0010] The inner cover is used to seal the can opening. The cover body can partially extend into the can opening. The outer circumference of the cover body and the inner circumference of the can opening are sealed by a sealing element. The second annular boss and the first annular boss can press against each other and seal.

[0011] The present invention is further configured such that an annular protrusion 1 is provided on the outside of the can opening; an annular protrusion 2 is provided at the lower end of the connecting part 2, and the annular protrusion 1 and the annular protrusion 2 can be engaged with each other.

[0012] The present invention is further configured such that the sealing element and the cover are integrally formed.

[0013] The present invention is further configured such that the cover is made of rigid plastic and the sealing element is made of elastic rubber or silicone material.

[0014] The present invention is further configured such that the cover is made of transparent acrylic material.

[0015] The present invention is further configured such that the lower end of the sealing member extends inward to form a connecting part one, and a protrusion two is integrally connected to the upper side of the connecting part one; a cover plate part is formed at the lower end of the cover body, and the cover plate part has an annular notch, and the protrusion two is embedded in the annular notch.

[0016] The present invention is further provided that a recessed portion is formed on the upper side of the cover, and a pull ring is integrally connected in the recessed portion.

[0017] The present invention is further configured to include an outer cover, which is used to cover the mouth of the can and can cover the inner cover inside;

[0018] The lower end of the outer cover forms an annular opening, and a protrusion three is fixedly connected to the inner circumference of the annular opening. A protrusion one is fixedly connected to the mouth of the can. The protrusion one and the protrusion three can rotate and engage with each other.

[0019] The present invention is further configured such that an upward-facing stepped surface is formed on the outer periphery of the can opening, a sealing gasket is installed on the stepped surface, and the lower end of the outer cover is sealed to the stepped surface by the sealing gasket.

[0020] The present invention is further configured such that an upper end cover is provided on the upper part of the outer cover, and the upper end cover is fixed to the outer cover by welding.

[0021] The beneficial effects of this utility model are:

[0022] In this solution, an inner cover and an outer cover are installed at the mouth of the tank. The inner cover consists of two parts: a sealing element and a cover body. The sealing element is cylindrical and fits around the outer periphery of the cover body to form an integral structure. The inner cover is installed on the inner wall of the tank mouth. The sealing element is in close contact with the inner wall of the tank mouth and the end of the tank mouth to achieve a seal.

[0023] When the inner lid is closed, it can partially extend into the mouth of the can, forming a sealing structure between the outer circumference of the inner lid and the inner circumference of the mouth of the can. Furthermore, the second annular boss and the first annular boss can press against each other and seal with the end face of the mouth of the can, forming another sealing structure, thereby improving the sealing effect of the inner lid on the mouth of the can.

[0024] The outer cover can be installed on the can opening by rotating and snapping it on. By rotating and squeezing, the outer cover and the sealing gasket of the can opening are tightly fitted together to achieve a seal.

[0025] This solution avoids the problem of poor sealing at the can opening due to insufficient pressure on the lid. In addition, the solution has a secondary sealing effect, which can maintain better sealing performance. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a sealed container in this embodiment.

[0027] Figure 2 This is an exploded view of a sealed container in this embodiment.

[0028] Figure 3 This is a full sectional view of a sealed container in this embodiment.

[0029] Figure 4 for Figure 3 Enlarged view of point A.

[0030] Figure 5 This is a fully exploded cross-sectional view of a sealed container in this embodiment.

[0031] Figure 6 This is a cross-sectional view of the inner lid of a sealed container in this embodiment.

[0032] Figure 7 This is a cutaway view of the inner lid of a sealed container in this embodiment.

[0033] Figure 8 This is a cross-sectional view of the outer cover of a sealed container in this embodiment.

[0034] Figure 9 This is a cutaway view of the outer cover of a sealing container in this embodiment.

[0035] Reference numerals: Tank body 1; Tank opening 11; Annular protrusion 12; Protrusion 13; Stepped surface 14; Sealing gasket 15; Inner cover 2; Seal 21; Annular boss 1 211; Protrusion 2 212; Connecting part 1 213; Cover 22; Annular protrusion 2 221; Connecting part 2 222; Annular boss 2 223; Recess 224; Annular groove 225; Cover plate 226; Annular notch 227; Pull ring 228; Outer cover 3; Annular opening 31; Protrusion 3 32; Upper cover 33. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] This embodiment discloses a sealed container, such as Figures 1-9 As shown, the container includes a tank body 1, an inner cover 2, and an outer cover 3. The tank body has a tank opening 11. The inner cover 2 is installed on the inner wall of the tank opening 11, and the outer cover 3 is fastened to the outer wall of the tank opening 11, which can achieve double sealing.

[0038] like Figure 6 , Figure 7 As shown, the inner cover 2 mainly consists of two parts: a sealing element 21 and a cover body 22. The sealing element 21 and the cover body 22 are integrally formed. The cover body 22 is made of rigid plastic, i.e., transparent acrylic material. The sealing element 21 is cylindrical and made of elastic rubber or silicone material, and is fitted around the outer periphery of the cover body 22, forming an integral structure with the cover body 22. During the production process of the inner cover 2, the cover body 22 can be formed first, and then the sealing element 21 can be formed on the outside of the cover body 22, so that the cover body 22 and the sealing element 21 can form an integral structure.

[0039] An annular boss 223 is fixedly connected to the outer periphery of the cover 22. The outer periphery of the annular boss 223 extends downward to form a connecting part 222. An annular groove 225 is formed between the annular boss 223 and the connecting part 222.

[0040] like Figure 5 As shown, the upper outer periphery of the seal 21 extends outward to form an annular boss 211. The annular boss 211 is embedded in the annular groove 225. The upper side of the annular boss 211 and the lower side of the annular boss 223 are in contact with each other. That is, the annular boss 211 of the seal 21 and the annular boss 223 of the cover 22 are bonded to each other and tightly connected as one piece during the integral molding process.

[0041] like Figure 3 , Figure 4 As shown, the inner cover 2 is used to seal the mouth 11 of the can. When the cover is closed, the cover body 22 can partially extend into the mouth 11 of the can. The outer periphery of the cover body 22 and the inner periphery of the mouth 11 are sealed by the sealing element 21 to form a sealing structure. The second annular boss 223 and the first annular boss 211 can press against each other with the end face of the mouth 11 to form another sealing structure, thereby improving the sealing effect of the inner cover on the mouth of the can.

[0042] like Figure 4 , Figure 5 As shown, the can opening 11 has an annular protrusion 12 on its outer side; the lower end of the connecting part 222 has an annular protrusion 221. The annular protrusion 12 and the annular protrusion 221 can be interlocked, so that the inner cover 2 can be tightly fastened to the can body 1. In order to facilitate the interlocking of the annular protrusion 12 and the annular protrusion 221, a rounded transition or a chamfer can be appropriately provided at the corresponding positions of the two.

[0043] like Figure 7As shown, the lower end of the seal 21 extends inward to form a connecting portion 213, and a protrusion 212 is integrally connected to the upper side of the connecting portion 213; the lower end of the cover 22 forms a cover plate portion 226, and the cover plate portion 226 has an annular notch 227. The protrusion 212 is embedded in the annular notch 227. During the molding process, some material of the seal 21 can enter into the annular notch 227, which can increase the contact area of ​​the joint, so that the seal 21 and the cover 22 are tightly joined to form an integral unit.

[0044] like Figure 5 , Figure 7 As shown, a recess 224 is formed on the upper side of the cover 22, and a pull ring 228 is integrally connected inside the recess 224. The pull ring 228 is mainly used to facilitate the installation of the inner cover 2 and realize the opening and closing of the inner cover 2.

[0045] like Figure 2 , Figure 3 As shown, the sealed container also includes an outer cover 3, which is used to cover the opening 11 of the container and can cover the inner cover 2 inside.

[0046] like Figure 2 , Figure 8 As shown, the lower end of the outer cover 3 forms an annular opening 31, and a protrusion 32 is fixedly connected to the inner circumference of the annular opening 31. A protrusion 13 is fixedly connected to the mouth of the can. The protrusion 13 and the protrusion 32 can rotate and engage with each other to realize the installation of the outer cover 2 and the can body 1.

[0047] like Figure 3 , Figure 4 As shown, an upward-facing stepped surface 14 is formed on the outer periphery of the can opening 11, and a sealing gasket 15 is installed on the stepped surface 14. The lower end of the outer cover 3 is sealed to the stepped surface 14 by the sealing gasket 15.

[0048] like Figure 8 , Figure 9 As shown, in this embodiment, the tank body 1 and the outer cover 3 can be configured as regular octagonal structures, with a small opening size for the annular opening 31 on the lower side of the outer cover 3. To facilitate the injection molding of the outer cover 3, the outer cover 3 is divided into two parts: the outer cover 3 body and the upper end cover 33. After the outer cover 3 body and the upper end cover 33 are respectively processed and formed, they are then welded and fixed to the outer cover 3 body by laser welding or hot melt welding to form an integral outer cover 3.

[0049] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A sealed canister, characterized by, The can body (1) comprises a can mouth portion (11); The inner cover (2) comprises a sealing member (21) and a cover body (22), the sealing member (21) is in a cylindrical shape, and the sealing member (21) is sleeved on the outer periphery of the cover body (22); The outer periphery of the cover body (22) is fixedly connected with an annular protrusion two (223), the annular protrusion two (223) extends downward to form a connecting portion two (222), and an annular groove (225) is formed between the annular protrusion two (223) and the connecting portion two (222); The upper end of the sealing member (21) extends outward to form an annular protrusion one (211), the annular protrusion one (211) is embedded in the annular groove (225), and the upper side of the annular protrusion one (211) and the lower side of the annular protrusion two (223) are mutually attached; The inner cover (2) is used for closing the can mouth portion (11), the cover body (22) can partially extend into the can mouth portion (11), the outer periphery of the cover body (22) and the inner periphery of the can mouth portion (11) are sealed by the sealing member (21), and the annular protrusion two (223), the annular protrusion one (211) and the end face of the can mouth portion (11) can be mutually pressed and sealed.

2. A sealed can according to claim 1, wherein An annular protrusion one (12) is arranged on the outer periphery of the can mouth portion (11), and an annular protrusion two (221) is arranged on the lower end of the connecting portion two (222), the annular protrusion one (12) and the annular protrusion two (221) can be mutually buckled.

3. A sealed can according to claim 1, wherein The sealing member (21) and the cover body (22) are integrally formed.

4. A sealed can according to claim 3, wherein The cover body (22) is made of hard plastic, and the sealing member (21) is made of elastic rubber or silica gel material.

5. A sealed can according to claim 4, wherein The cover body (22) is made of transparent acrylic material.

6. A sealed can according to claim 1, wherein The lower end of the sealing member (21) extends inward to form a connecting portion one (213), and the upper side of the connecting portion one (213) is integrally connected with a protrusion portion two (212); The lower end of the cover body (22) forms a cover plate portion (226), the cover plate portion (226) is provided with an annular notch (227), and the protrusion portion two (212) is embedded in the annular notch (227).

7. A sealed can according to claim 1, wherein The upper side of the cover body (22) forms a recessed portion (224), and the recessed portion (224) is integrally connected with a pull ring (228).

8. The sealed canister of claim 1, wherein, An outer cover (3) is further arranged, the outer cover (3) is used for covering the can mouth portion (11), and the inner cover (2) can be covered by the outer cover (3); The lower end of the outer cover (3) forms an annular opening (31), the inner periphery of the annular opening (31) is fixedly connected with a protrusion portion three (32), the can mouth portion (11) is fixedly connected with a protrusion portion one (13), and the protrusion portion one (13) and the protrusion portion three (32) can be mutually rotatably buckled.

9. A sealed can according to claim 8, wherein The outer periphery of the can mouth portion (11) forms an upward stepped surface (14), a sealing gasket (15) is arranged on the stepped surface (14), and the lower end of the outer cover (3) and the stepped surface (14) are sealed by the sealing gasket (15).

10. A sealed can according to claim 8, wherein The upper portion of the outer cover (3) is provided with an upper end cover (33), and the upper end cover (33) and the outer cover (3) are fixed by welding.

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