Sealing container with sealing gasket free of relative friction with container opening

Abstract

A sealing container with a sealing gasket free of relative friction with a container opening comprises a sealing container body, a cover and a sealing piece, the opening end of the sealing container body is matched with the cover, the sealing piece is arranged between the opening end of the sealing container body and the cover, and the top of the sealing piece is elastically connected with the cover through an elastic piece. The upper half part and the lower half part of the sealing piece can rotate relatively through a bearing, when the cover is screwed, the upper half part of the sealing piece and the cover rotate together and slide up and down, the circular sealing plate slides up and down along with the sealing piece and the cover, the circular sealing plate rotates relative to the cover, meanwhile, the circular sealing plate and the sealing face of the container opening are static relatively, and the cover is screwed. And the circular sealing plate is pressed against the sealing surface of the container opening. In the design, no relative friction exists between the circular sealing plate and the sealing face of the container opening, abrasion and noise are avoided, meanwhile, the bearing of the sealing piece is the self-lubricating bearing, the ball is made of glass, lubricating oil does not need to be smeared, and pollution to contents in the sealed container body is avoided.

Description

Technical Field

[0001] This invention relates to a sealed container, and more particularly to a sealed container with a sealing gasket that does not rub against the container opening. Background Technology

[0002] Sealed containers have high requirements for airtightness. To prevent the contents from spilling out, they are usually sealed with a cap with a sealing element. Currently, the sealing element is usually a soft or hard ring or round gasket.

[0003] Soft seals are usually made of plastic, silicone, or PE. The seal is squeezed and deformed between the lid and the container body to fill the gap between the lid and the container body, thus achieving a sealing effect. However, plastic, silicone, and PE materials are prone to aging and producing microplastic particles, which can contaminate the food inside the container.

[0004] Therefore, rigid seals that do not contaminate food have become a new direction for industry development. Rigid seals are usually made of glass, ceramics, or metal, and achieve a good sealing fit with the bottle mouth of the container body through precision machining.

[0005] While such sealed containers can effectively prevent spillage even in the event of contamination, they still have the following drawbacks:

[0006] 1. When used, the hard material sealing gasket and the hard material cup mouth will rub against each other under pressure, generating noise.

[0007] 2. When a hard material sealing gasket rubs against a hard material cup rim, wear and tear can easily occur.

[0008] The information disclosed in this background section is intended only to enhance understanding of the overall background of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0009] The purpose of this invention is to overcome the shortcomings of existing technologies, such as noise generated by relative friction and easy wear, and to provide a sealed container with a sealing gasket that does not generate noise and is not easily worn, and has no relative friction with the container opening.

[0010] To achieve the above objectives, the technical solution of the present invention is:

[0011] A sealing container with a sealing gasket that does not rub against the container opening, the sealing container comprising a sealing container body, a lid, and a sealing element;

[0012] The opening end of the sealed container body mates with the lid, and the sealing element is disposed between the opening end of the sealed container body and the lid;

[0013] The main body of the sealed container is provided with a container mouth sealing surface at the open end, and the bottom of the sealing element is provided with a circular sealing plate that fits tightly with the container mouth sealing surface.

[0014] The top of the seal is elastically connected to the lid via an elastic element. The circular sealing plate is pressed against the sealing surface of the container opening under the action of the elastic element. When the lid is tightened, the upper part of the seal rotates and slides up and down with the lid. The circular sealing plate slides up and down with the lid and rotates relative to the lid. At the same time, the circular sealing plate and the sealing surface of the container opening of the sealing container body are relatively stationary.

[0015] The outer wall of the opening end of the sealed container body is provided with an external thread, and the inner wall of the lid is provided with an internal thread that mates with the external thread.

[0016] The inner wall of the cover is evenly provided with multiple U-shaped grooves along the circumferential direction, and the U-shaped grooves are arranged in the vertical direction.

[0017] The sealing element includes an upper bearing bracket, a lower bearing bracket, and a bearing. The outer edge of the upper bearing bracket is uniformly provided with a plurality of sliders that cooperate with the U-shaped groove along the circumferential direction. The upper bearing bracket slides with the U-shaped groove on the cover through the sliders provided thereon.

[0018] The bottom of the lower bearing bracket is fixedly connected to the top of the circular sealing plate;

[0019] The bearing is disposed between the upper bearing bracket and the lower bearing bracket, and the lower bearing bracket is rotatably engaged with the upper bearing bracket via the bearing.

[0020] The bearing is a deep groove ball bearing. The upper bearing bracket is fixedly connected to the outer ring of the bearing, and the lower bearing bracket is fixedly connected to the inner ring of the bearing.

[0021] The bearing is a thrust ball bearing. The bottom of the upper bearing bracket and the top of the lower bearing bracket are provided with bearing ball grooves, and the bearing balls are disposed in the bearing ball grooves.

[0022] The upper bearing bracket is provided with a connecting buckle at its bottom, and the lower bearing bracket is provided with a limiting ring at its top. The upper bearing bracket is limited by the connecting buckle thereon and the limiting ring thereon.

[0023] A sleeve-shaped cantilever buckle is provided at the top center of the circular sealing plate, and a buckle assembly that cooperates with the sleeve-shaped cantilever buckle is provided in the middle of the lower bearing bracket.

[0024] The circular sealing plate is connected to the buckle assembly on the lower support of the bearing via a sleeve-type cantilever buckle.

[0025] The balls in the bearing are made of glass, and the mating parts of the balls in the bearing are all made of polyoxymethylene.

[0026] The container opening sealing surface and the circular sealing plate are both made of ceramic, glass or metal materials.

[0027] The lid also includes an upper cover and a lid body, wherein the upper cover has a disc structure and the lid body has a cylindrical structure;

[0028] The elastic element is a helical spring, an elastic sealing ring, or a wave spring. The bottom of the upper cover and the top of the bearing bracket are both provided with a circular boss.

[0029] The annular boss is used to fix the end of the elastic element;

[0030] An annular gasket is provided between the elastic element and the top cover.

[0031] The bottom of the cover is provided with multiple straight arm buckles along the circumferential direction, and the top of the inner wall of the cover body is provided with a groove that cooperates with the straight arm buckles.

[0032] The lid also includes a decorative ring, which is fitted onto the connection between the upper cover and the lid body, and is used to cover the seam between the upper cover and the lid body.

[0033] The cover also includes a sealing ring and a sealing ring bracket. Both the sealing ring and the sealing ring bracket are annular structures. The bottom of the sealing ring bracket is provided with an installation groove that mates with the sealing ring. The sealing ring is disposed in the installation groove on the sealing ring bracket.

[0034] The top of the sealing ring is sealed to the sealing ring bracket, and the bottom of the sealing ring is sealed to the top of the bearing bracket.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0036] 1. The present invention discloses a sealing container with a sealing gasket that does not rub against the container opening, comprising a sealing container body, a lid, and a sealing element. The open end of the sealing container body engages with the lid, and the sealing element is disposed between the open end of the sealing container body and the lid. The top of the sealing element is elastically connected to the lid via an elastic element, and the upper part of the sealing element slides in engagement with the lid. In use, the sealing element is driven by the elastic element and presses against the open end of the sealing container body. When the lid is tightened, the circular sealing plate slides up and down with the sealing element and the lid. Since a bearing is provided in the middle of the sealing element, the circular sealing plate and the lid rotate relative to each other, while the circular sealing plate and the open end of the sealing container body remain relatively stationary, thus avoiding relative friction between the circular sealing plate and the sealing container body to prevent noise.

[0037] 2. In a sealed container with a sealing gasket that does not rub against the container opening, the sealing element includes an upper bearing support, a lower bearing support, and a bearing. The bearing can be a deep groove ball bearing. The upper bearing support is fixedly connected to the outer ring of the deep groove ball bearing, and the lower bearing support is fixedly connected to the inner ring of the bearing. Both the inner and outer rings of the bearing are made of polyoxymethylene material, and the balls in the bearing are made of glass material, which makes the bearing itself self-lubricating, further reducing the relative friction on the sealing element and avoiding wear.

[0038] 3. In the sealed container of the present invention, which has a sealing gasket that does not have relative friction with the container opening, the bearing can also be a thrust ball flat pressure bearing. The upper and lower supports of the bearing that cooperate with the balls of the thrust ball flat pressure bearing are both made of polyoxymethylene material, which can withstand greater axial pressure under the premise of having self-lubricating ability. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of the present invention.

[0040] Figure 2 This is a schematic diagram of another embodiment of the present invention.

[0041] Figure 3 This is a three-dimensional assembly drawing of the present invention.

[0042] Figure 4 This is a schematic diagram of the appearance of the present invention.

[0043] Figure 5 yes Figure 1 Installation diagram of the central sealing component.

[0044] Figure 6 yes Figure 1 A cross-sectional view of the central seal.

[0045] Figure 7 yes Figure 2 A cross-sectional view of the central seal.

[0046] Figure 8 This is a three-dimensional assembly drawing of the seal in Example 1.

[0047] Figure 9 This is a three-dimensional assembly drawing of the seal in Example 2.

[0048] Figure 10 yes Figure 1 A schematic diagram of the main body of the middle cover.

[0049] Figure 11 This is a horizontal sectional view of the bearing in Example 2.

[0050] Figure 12 This is a three-dimensional assembly diagram of the bearing in Example 2.

[0051] Figure 13 This is a schematic diagram of the structure of Example 3.

[0052] Figure 14 This is a structural schematic diagram of Example 4.

[0053] In the diagram: 1. Sealed container body; 11. Container opening sealing surface; 12. External thread; 2. Cover; 21. U-shaped groove; 22. Internal thread; 23. Annular gasket; 24. Top cover; 25. Cover body; 26. Straight arm buckle; 27. Groove; 28. Circular boss; 3. Seal; 31. Circular sealing plate; 32. Upper bearing bracket; 33. Lower bearing bracket; 34. Bearing; 35. Bearing ball groove; 36. Slider; 37. Sleeve-type cantilever buckle; 38. Buckle assembly; 39. Ball retainer; 310. Connecting buckle; 311. Limiting ring; 4. Elastic element; 5. Decorative ring; 6. Sealing ring; 7. Sealing ring bracket. Detailed Implementation

[0054] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] Example 1:

[0056] See Figure 1 , Figure 3 and Figure 4A sealing container with a sealing gasket that does not rub against the container opening is disclosed. The sealing container includes a sealing container body 1, a lid 2, and a sealing element 3. The open end of the sealing container body 1 is fitted with the lid 2, and the sealing element 3 is disposed between the open end of the sealing container body 1 and the lid 2. A container opening sealing surface 11 is provided at the open end of the sealing container body 1, and a circular sealing plate 31 that fits tightly with the container opening sealing surface 11 is provided at the bottom of the sealing element 3. The top of the sealing element 3 is elastically connected to the lid 2 through an elastic element 4. Under the action of the elastic element 4, the circular sealing plate 31 is pressed tightly against the container opening sealing surface 11. When the lid 2 is tightened, the circular sealing plate 31 contacts the container opening sealing surface 11, and the upper part of the sealing element 3 rotates and slides up and down with the lid 2. The circular sealing plate 31 slides up and down with the lid 2, and rotates relative to the lid 2. At the same time, the circular sealing plate 31 and the container opening sealing surface 11 of the sealing container body 1 remain relatively stationary.

[0057] The main body 1 of the sealed container is a double-layered cup body, and the central layer of the double-layered cup body is a sealed cavity. The central layer of the main body 1 of the sealed container is enhanced with vacuum to improve its heat preservation.

[0058] See Figure 1 , Figure 6 and Figure 8 The bearing 34 is a deep groove ball bearing. The upper bearing bracket 32 ​​is fixedly connected to the outer ring of the bearing 34, and the lower bearing bracket 33 is fixedly connected to the inner ring of the bearing 34.

[0059] See Figure 6 and Figure 10 The outer wall of the opening end of the sealed container body 1 is provided with an external thread 12, and the inner wall of the cover 2 is provided with an internal thread 22 that mates with the external thread 12.

[0060] See Figure 5 The inner wall of the cover 2 is evenly provided with a plurality of U-shaped grooves 21 along the circumferential direction, and the U-shaped grooves 21 are arranged in the vertical direction;

[0061] See Figure 5 , Figure 6 and Figure 8 The sealing element 3 includes an upper bearing bracket 32, a lower bearing bracket 33, and a bearing 34. The outer edge of the upper bearing bracket 32 ​​is evenly provided with a plurality of sliders 36 that cooperate with the U-shaped groove 21 along the circumferential direction. The upper bearing bracket 32 ​​slides with the U-shaped groove 21 provided on the cover 2 through the sliders 36 provided thereon.

[0062] The sealing element 3 slides vertically within the U-shaped groove 21. The upper surface of the lower wall of the U-shaped groove 21 restricts the lower limit of the downward movement of the sealing element 3. The elastic direction of the elastic element 4 is the same as the sliding direction of the sealing element 3. When the cover 2 is installed on the open end of the sealing container body 1, the open end of the sealing container body 1 pushes the sealing element 3, causing the elastic element 4 to compress. The elastic force generated by the compression of the elastic element 4 presses the sealing element 3 tightly against the open end of the sealing container body 1, thereby sealing the open end of the sealing container body 1.

[0063] The bottom of the lower bearing bracket 33 is fixedly connected to the top of the circular sealing plate 31; the bearing 34 is disposed between the upper bearing bracket 32 ​​and the lower bearing bracket 33, and the upper bearing bracket 32 ​​is rotatably engaged with the lower bearing bracket 33 through the bearing 34.

[0064] The balls in the bearing 34 are made of glass, and the inner and outer rings of the bearing 34 are made of polyoxymethylene. The container opening sealing surface 11 and the circular sealing plate 31 are made of ceramic, glass or metal.

[0065] The glass material includes borosilicate glass or tempered glass, etc., and the metal material includes stainless steel or titanium metal, etc.

[0066] The bearing 34, made of ball bearing material, produces a self-lubricating effect with the inner and outer rings of the bearing made of polyoxymethylene material. This not only reduces friction and noise, but also eliminates the need for lubricating oil, thus avoiding contamination of the contents inside the sealed container body 1.

[0067] The cover 2 also includes an upper cover 24 and a cover body 25. The upper cover 24 has a disc structure, and the cover body 25 has a cylindrical structure. The elastic element 4 is a helical spring, an elastic sealing ring, or a wave spring. The bottom of the upper cover 24 and the top of the bearing bracket 32 ​​are provided with an annular boss 28. The annular boss 28 is used to fix the end of the elastic element 4. An annular gasket 23 is provided between the elastic element 4 and the upper cover 24.

[0068] The bottom of the upper cover 24 is provided with a plurality of straight arm buckles 26 along the circumferential direction, and the top of the inner wall of the cover body 25 is provided with a groove 27 that cooperates with the straight arm buckles 26.

[0069] See Figure 1 , Figure 3 , Figure 4 , Figure 6 The cover 2 also includes a decorative ring 5, which is sleeved on the connection between the upper cover 24 and the cover body 25. The decorative ring 5 is used to cover the mating seam between the upper cover 24 and the cover body 25.

[0070] See Figure 1 , Figure 3, Figure 6 and Figure 8 The circular sealing plate 31 has a sleeve-shaped cantilever buckle 37 at the top center position, and the lower bearing bracket 33 has a buckle fitting 38 that cooperates with the sleeve-shaped cantilever buckle 37 in the middle part; the circular sealing plate 31 is connected to the buckle fitting 38 on the lower bearing bracket 33 through the sleeve-shaped cantilever buckle 37.

[0071] The circular sealing plate 31 and the lower bearing bracket 33 are bonded together with adhesive. The sleeve-type cantilever buckle 37 and the buckle assembly 38 cooperate to ensure the connection between the circular sealing plate 31 and the lower bearing bracket 33 when the adhesive fails.

[0072] See Figure 1 , Figure 3 and Figure 6 The cover 2 also includes a sealing ring 6 and a sealing ring bracket 7. Both the sealing ring 6 and the sealing ring bracket 7 are annular structures. The bottom of the sealing ring bracket 7 is provided with an installation groove that mates with the sealing ring 6. The sealing ring 6 is disposed in the installation groove on the sealing ring bracket 7.

[0073] The top of the sealing ring 6 is sealed to the sealing ring bracket 7, and the bottom of the sealing ring 6 is sealed to the top of the bearing bracket 32.

[0074] The sealing ring 6 is used to prevent moisture and foreign objects from entering the recessed area in the middle of the bearing bracket 32, ensuring that this area is clean, and at the same time ensuring that the spring 4 does not come into contact with moisture to prevent corrosion.

[0075] The bottom of the upper cover 24 may also be provided with an annular rib, which is used to position the sealing ring bracket 7. The top of the upper bearing bracket 32 ​​may also be provided with an annular convex rib for matching the bottom of the sealing ring 6.

[0076] Example 2:

[0077] Example 2 is basically the same as Example 1, except that:

[0078] See Figure 2 , Figure 3 , Figure 7 , Figure 9 , Figure 11 and Figure 12 The bearing 34 is a thrust ball plane pressure bearing. The bottom of the upper bearing bracket 32 ​​and the top of the lower bearing bracket 33 are respectively provided with bearing ball grooves 35, and the bearing balls are disposed in the bearing ball grooves 35.

[0079] The upper bearing bracket 32 ​​is provided with a connecting buckle 310 at its bottom, and the lower bearing bracket 33 is provided with a limiting ring 311 at its top. The upper bearing bracket 32 ​​is limited and engaged with the limiting ring 311 on the lower bearing bracket 33 through the connecting buckle 310 thereon.

[0080] The ball cage 39 of the bearing 34 has multiple pockets for accommodating balls along the circumferential direction. The locking openings of the multiple pockets are alternately arranged on the upper and lower sides of the ball cage 39 along the circumferential direction.

[0081] Example 3:

[0082] Example 3 is basically the same as Example 1, except that:

[0083] See Figure 13 In this embodiment, the container is a storage tank, and the lid 2 does not include the sealing ring 6 and the sealing ring bracket 7.

[0084] Since the storage tank is used in an environment where it is not easily exposed to moisture, it does not require sealing ring 6 and sealing ring bracket 7.

[0085] Example 4:

[0086] Example 4 is basically the same as Example 2, except that:

[0087] See Figure 14 In this embodiment, the container is a storage tank, and the lid 2 does not include the sealing ring 6 and the sealing ring bracket 7.

[0088] Since the storage tank is used in an environment where it is not easily exposed to moisture, it does not require sealing ring 6 and sealing ring bracket 7.

[0089] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. A sealed container with a sealing gasket that does not rub against the container opening, characterized in that, The sealed container includes a sealed container body (1), a lid (2), and a sealing element (3); The opening end of the sealed container body (1) is matched with the lid (2), and the sealing element (3) is disposed between the opening end of the sealed container body (1) and the lid (2); The main body (1) of the sealed container is provided with a container mouth sealing surface (11) at the opening end, and the bottom of the sealing element (3) is provided with a circular sealing plate (31) that fits tightly with the container mouth sealing surface (11). The top of the sealing element (3) is elastically connected to the cover (2) through the elastic element (4). The circular sealing plate (31) is pressed against the sealing surface (11) of the container opening under the action of the elastic element (4). When the cover is tightened, the upper part of the sealing element (3) rotates and slides up and down with the cover (2). The circular sealing plate (31) slides up and down with the sealing element (3) and the cover (2). The circular sealing plate (31) rotates relative to the cover (2). At the same time, the circular sealing plate (31) and the sealing surface (11) of the container opening of the sealing container body (1) are relatively stationary.

2. A sealed container with a sealing gasket that does not rub against the container opening as described in claim 1, characterized in that, The outer wall of the opening end of the sealed container body (1) is provided with an external thread (12), and the inner wall of the cover (2) is provided with an internal thread (22) that matches the external thread (12). The inner wall of the cover (2) is provided with a plurality of U-shaped grooves (21) evenly arranged along the circumferential direction, and the U-shaped grooves (21) are arranged in the vertical direction; The sealing element (3) includes an upper bearing bracket (32), a lower bearing bracket (33), and a bearing (34). The outer edge of the upper bearing bracket (32) is uniformly provided with a plurality of sliders (36) that cooperate with the U-shaped groove (21) along the circumferential direction. The upper bearing bracket (32) slides with the U-shaped groove (21) provided on the cover (2) through the sliders (36) provided on it. The bottom of the lower bearing bracket (33) is fixedly connected to the top of the circular sealing plate (31); The bearing (34) is disposed between the upper bearing bracket (32) and the lower bearing bracket (33), and the lower bearing bracket (33) is rotatably coupled with the upper bearing bracket (32) through the bearing (34).

3. A sealed container with a sealing gasket that does not rub against the container opening, as described in claim 2, characterized in that... The bearing (34) is a deep groove ball bearing. The upper bearing bracket (32) is fixedly connected to the outer ring of the bearing (34), and the lower bearing bracket (33) is fixedly connected to the inner ring of the bearing (34).

4. A sealed container with a sealing gasket that does not rub against the container opening, as described in claim 2, characterized in that, The bearing (34) is a thrust ball flat pressure bearing. The bottom of the upper bearing bracket (32) and the top of the lower bearing bracket (33) are respectively provided with bearing ball grooves (35), and the balls of the bearing (34) are arranged in the bearing ball grooves (35).

5. A sealed container with a sealing gasket that does not rub against the container opening, as described in claim 4, characterized in that, The upper bearing bracket (32) is provided with a connecting buckle (310) at the bottom, and the lower bearing bracket (33) is provided with a limiting ring (311) at the top. The upper bearing bracket (32) is limited and cooperated with the limiting ring (311) provided on the lower bearing bracket (33) through the connecting buckle (310) provided on it.

6. A sealed container with a sealing gasket that does not rub against the container opening, as described in claim 2, characterized in that, The circular sealing plate (31) is provided with a sleeve-type cantilever buckle (37) at the top center position, and the bearing lower bracket (33) is provided with a buckle assembly (38) that cooperates with the sleeve-type cantilever buckle (37) in the middle. The circular sealing plate (31) is connected to the buckle assembly (38) on the lower bearing bracket (33) via a sleeve-type cantilever buckle (37).

7. A sealed container with a sealing gasket that does not rub against the container opening, as described in claim 2 or 4, characterized in that: The balls in the bearing (34) are made of glass, and the mating parts of the balls in the bearing (34) are all made of polyoxymethylene. The container opening sealing surface (11) and the circular sealing plate (31) are both made of ceramic, glass or metal materials.

8. A sealed container with a sealing gasket that does not rub against the container opening, as described in claim 2, characterized in that, The cover (2) also includes an upper cover (24) and a cover body (25), wherein the upper cover (24) is a disc structure and the cover body (25) is a cylindrical structure; The elastic element (4) is a helical spring, an elastic sealing ring or a wave spring. The bottom of the upper cover (24) and the top of the bearing bracket (32) are provided with a circular boss (28). The annular boss (28) is used to fix the end of the elastic element (4); An annular gasket (23) is provided between the elastic element (4) and the top cover (24).

9. A sealed container with a sealing gasket that does not rub against the container opening, as described in claim 8, characterized in that, The bottom of the cover (24) is provided with a plurality of straight arm buckles (26) along the circumferential direction, and the top of the inner wall of the cover body (25) is provided with a groove (27) that cooperates with the straight arm buckles (26). The cover (2) also includes a decorative ring (5), which is fitted at the connection between the upper cover (24) and the cover body (25). The decorative ring (5) is used to cover the joint between the upper cover (24) and the cover body (25).

10. A sealed container with a sealing gasket that does not rub against the container opening, as described in claim 8, characterized in that, The cover (2) also includes a sealing ring (6) and a sealing ring bracket (7). The sealing ring (6) and the sealing ring bracket (7) are both annular structures. The bottom of the sealing ring bracket (7) is provided with an installation groove that matches the sealing ring (6). The sealing ring (6) is set in the installation groove on the sealing ring bracket (7). The top of the sealing ring (6) is sealed to the sealing ring bracket (7), and the bottom of the sealing ring (6) is sealed to the top of the bearing bracket (32).

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