A sealed can having a sealed lid

Abstract

The application discloses a sealing cover which comprises an upper cover, a lower cover, a button, a reset component and a transposition component. The button is embedded in the upper cover and movably connected with the upper cover. The upper cover is movably connected with the lower cover through the button and the reset component. The transposition component comprises a transposition shaft and a transposition guide. The transposition shaft is movably installed on the button. Only one columnar body and two limiting columns are arranged on the transposition shaft. The transposition guide is in a tubular structure and is connected with the upper cover. A straight central passage corresponding to the columnar body, a movable passage and a guide passage corresponding to the limiting columns are arranged in the transposition guide. The structure of the transposition guide in the sealing cover is optimized, synchronous reverse movement of the button is avoided, the impact degree of the transposition shaft in the self-rotation stage is weakened, and the abrasion is reduced. Meanwhile, the structure of the sanitary dead angle is eliminated, and the maintainability of the sealing cover in the aspect of sanitation is improved.

Description

Technical Field

[0001] This invention relates to a sealing cap for a sealed container. Background Technology

[0002] Airtight containers are a common type of container used in daily life, and their widespread use in households is inseparable from their sealing function. An airtight container consists of a sealing lid and a container body; undoubtedly, the sealing function is achieved at the junction of the lid and the body. Common techniques used in the present technology to establish a sealed connection between the lid and the container body include: installing a sealing ring on the lid and achieving a seal by compressing the sealing ring until it deforms; or installing a sealing ring on the lid and achieving a seal by expanding the sealing ring.

[0003] The technique of achieving a seal by expanding the sealing ring provides users with a smooth and comfortable user experience, making it highly economical. The core technology lies in the self-locking mechanism within the sealing cap that controls the sealing ring's expansion and contraction. Existing self-locking mechanisms can be categorized into rotary spring-loaded self-locking, lateral snap-locking, vertical snap-locking, crank-connecting rod self-locking, and rotary lifting self-locking. Among these, the rotary spring-loaded self-locking structure is the most practical, allowing for one-handed operation and thus providing a convenient user experience.

[0004] Existing rotating, spring-loaded self-locking structures suffer from the problem of violent collisions between internal components. For example, a Chinese patent published on April 19, 2022, with publication number CN216333933U, entitled "A Press-Type Sealed Storage Tank," describes such a rotating, spring-loaded self-locking structure. When button 6 is pressed, the rotatable arm 7 is driven to swing, thereby causing the lower cover 3 to move upwards, and the protrusion on the lower cover 3 moves upwards synchronously. Simultaneously, the turntable 11 mounted on the top rod 10 of button 6 moves downwards in sync with button 6. Using the tank body (container 14) as a reference, when button 6 is pressed, the turntable 11 moves downwards while the protrusion moves upwards, with the turntable 11 and protrusion moving synchronously towards each other. The top of the protrusion has an angular protrusion that eventually contacts the turntable 11, causing the angular protrusion to drive the turntable 11 to rotate. Because collisions occur when the turntable 11 and protrusion move synchronously towards each other, wear on the contact points of the turntable 11 and protrusion is accelerated. The negative impact of this wear and tear during the product's lifespan is incidental, depending on the choice of raw materials. However, when producing related parts without using specific raw materials, the negative impact of wear and tear during the product's lifespan becomes inevitable. Therefore, existing technologies of this type require the use of high-quality raw materials, resulting in higher production costs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is how to reduce the degree of impact between parts in the sealing cover, thereby obtaining a sealing cover and a sealing can having the sealing cover.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: The sealing cover includes an upper cover, a lower cover, a button, a reset component, and a shifting component. The button is embedded in the upper cover and movably connected to it. The upper cover and the lower cover are movably connected via the button and the reset component. The shifting component includes a shifting shaft and a shifting guide. The shifting shaft is movably mounted on the button. The shifting shaft has only one columnar body and two limiting posts. The limiting posts have a circular cross-section and are distributed on the sides of the columnar body. The limiting posts are symmetrically distributed with respect to the center line of the columnar body. The shifting guide is a tubular structure and is connected to the upper cover. The shifting guide has a straight central channel corresponding to the columnar body, and a movable channel and a guide channel corresponding to the limiting posts. The shifting guide has two straight movable channels inside. The movable channels are distributed on both sides of the central channel and are symmetrically distributed with respect to the center line of the central channel. The guide channels are distributed around the central channel, and the center line of the guide channels coincides with the center line of the central channel. The movable channels and guide channels are parallel to the center line of the central channel. The distribution is directional, with the central channel, movable channel, and guide channel interconnected. The columnar body moves within the central channel, and the limiting post moves within the movable channel and guide channel. The positioning guide has only two sets of guide units at the guide channel. The guide units are movably connected to the limiting post and guide the movement of the limiting post. The two sets of guide units are continuously distributed around the centerline of the central channel. Each set of guide units includes an upper guide surface and a lower guide surface, which are separated and distributed in a direction parallel to the centerline of the central channel. The guide channel is located between the upper guide surface and the lower guide surface.The upper guide surface includes a progressive guide surface, a holding surface, and a departing guide surface. These three surfaces are arranged sequentially in the same circumferential direction around the centerline of the central channel. The input end of the progressive guide surface extends in a direction intersecting the extension direction of the active channel. The output end of the progressive guide surface intersects the holding surface and extends in a direction away from the lower guide surface. The holding surface extends in the same circumferential direction around the centerline of the central channel. The distance from the input end of the departing guide surface to the lower guide surface is less than the distance from the holding surface to the lower guide surface. The input end of the departing guide surface extends in a direction towards the lower guide surface. The extension direction of the output end of the departing guide surface intersects the extension direction of the active channel, and the output end of the departing guide surface... The upper guide surface extends away from the lower guide surface, which includes an input guide surface and an output guide surface. The input end of the input guide surface extends into the moving channel. The output end of the input guide surface and the input end of the progressive guide surface are in the same direction parallel to the center line of the central channel. The distance from the input end of the input guide surface to the upper guide surface is less than the distance from the output end of the input guide surface to the upper guide surface. The input end of the output guide surface and the holding surface are in the same direction parallel to the center line of the central channel. The output end of the output guide surface and the input end of the departing guide surface are in the same direction parallel to the center line of the central channel. The distance from the input end of the output guide surface to the upper guide surface is less than the distance from the output end of the output guide surface to the upper guide surface.

[0007] In this technical solution, pressing the button causes the shifting shaft to descend, while the spatial positions of the shifting guide and the upper cover remain fixed. The lower guide surface ultimately contacts the shifting shaft in a stationary state. Compared to the prior art where a protrusion contacts a moving turntable, the impact on the shifting shaft is significantly reduced in this solution. Furthermore, this solution optimizes the structure of the limiting posts and guide units on the shifting shaft. Only two limiting posts are used, and the guiding surfaces of the guide unit are more gently sloping, especially the progressive guide surface, input guide surface, and output guide surface, which are not inclined as in the prior art. This structural optimization also helps mitigate the aforementioned impact, as the smoother working surfaces reduce the rotational speed achievable by the shifting shaft. In the prior art, the large inclination of the working surfaces results in a relatively closed angle between adjacent working surfaces, making it easy for foreign objects to accumulate and creating unsanitary corners. In this solution, the smoother working surfaces and wider angle between adjacent working surfaces eliminate unsanitary corners, allowing the surface to be cleaned simply by rinsing with water.

[0008] To prevent excessive contact between the shifting shaft and the lower guide surface when the button is pressed to its limit position, this technical solution incorporates a limiting structure. The button has ring-shaped barbs, which are movably connected to the upper cover. The upper cover has ring-shaped through holes to accommodate the barbs. The button has a limiting part I located between adjacent barbs, and the upper cover has a limiting part II located between adjacent through holes. Limiting parts I and II are opposite each other, and the maximum distance between them is less than the maximum distance from the limiting post to the lower guide surface. This ensures that the side of the limiting post of the shifting shaft contacts the lower guide surface, rather than the bottom surface. If the bottom surface of the limiting post contacts the lower guide surface, a frontal compression contact process would occur, which would intensify the impact and should be avoided. Contact between the side of the limiting post and the lower guide surface, to some extent, avoids a frontal impact and thus mitigates the impact.

[0009] To completely avoid the aforementioned frontal impact process, the positioning guide in this technical solution has a buffer channel between the input guide surface and the output guide surface. This prevents the bottom surface of the limiting post from contacting the lower guide surface.

[0010] To mitigate the impact caused by accidental button presses, the upper guide surface also includes a transition guide surface located between the holding surface and the departure guide surface. The transition guide surface intersects both the holding surface and the departure guide surface. The distance from the end of the transition guide surface that intersects the holding surface to the lower guide surface is greater than the distance from the end of the transition guide surface that intersects the departure guide surface to the lower guide surface.

[0011] The aforementioned sealing cap, when combined with the can body, forms a sealed can. The sealing cap includes an upper cover, a lower cover, a button, a reset component, a shifting component, and a sealing ring. The button is embedded in the upper cover and movably connected to it. The upper and lower covers are movably connected via the button and the reset component. The upper cover covers the edge of the can's opening. The sealing ring is installed on the lower cover, which is sealed to the inner wall of the can body via the unfolded sealing ring. The shifting component includes a shifting shaft and a shifting guide. The shifting shaft is movably mounted on the button and has only one columnar body and two limiting posts. The limiting posts have a circular cross-section and are distributed on the sides of the columnar body, symmetrically distributed with respect to the centerline of the columnar body. The shifting guide is a tubular structure connected to the upper cover. The shifting guide internally has a straight central channel corresponding to the columnar body, and movable channels and guide channels corresponding to the limiting posts. There are two straight movable channels, distributed on both sides of the central channel and symmetrically distributed with respect to the center line of the central channel. Guide channels are distributed around the central channel, with their center lines coinciding with the center line of the central channel. The movable and guide channels are distributed along a direction parallel to the center line of the central channel. The central channel, movable channels, and guide channels are interconnected. The columnar body moves within the central channel, and the limiting post moves within the movable and guide channels. The displacement guide has only two sets of guide units at the guide channel. The guide units are movably connected to the limiting post and guide the movement of the limiting post. The two sets of guide units are continuously distributed around the center line of the central channel. Each set of guide units includes an upper guide surface and a lower guide surface, which are separated and distributed in a direction parallel to the center line of the central channel. The guide channel is located between the upper and lower guide surfaces.The upper guide surface includes a progressive guide surface, a holding surface, and a departing guide surface. These three surfaces are arranged sequentially in the same circumferential direction around the centerline of the central channel. The input end of the progressive guide surface extends in a direction intersecting the extension direction of the active channel. The output end of the progressive guide surface intersects the holding surface and extends in a direction away from the lower guide surface. The holding surface extends in the same circumferential direction around the centerline of the central channel. The distance from the input end of the departing guide surface to the lower guide surface is less than the distance from the holding surface to the lower guide surface. The input end of the departing guide surface extends in a direction towards the lower guide surface. The extension direction of the output end of the departing guide surface intersects the extension direction of the active channel, and the output end of the departing guide surface... The upper guide surface extends away from the lower guide surface, which includes an input guide surface and an output guide surface. The input end of the input guide surface extends into the moving channel. The output end of the input guide surface and the input end of the progressive guide surface are in the same direction parallel to the center line of the central channel. The distance from the input end of the input guide surface to the upper guide surface is less than the distance from the output end of the input guide surface to the upper guide surface. The input end of the output guide surface and the holding surface are in the same direction parallel to the center line of the central channel. The output end of the output guide surface and the input end of the departing guide surface are in the same direction parallel to the center line of the central channel. The distance from the input end of the output guide surface to the upper guide surface is less than the distance from the output end of the output guide surface to the upper guide surface.

[0012] In this technical solution, pressing the button causes the shifting shaft to descend, while the spatial positions of the shifting guide and the upper cover remain fixed. The lower guide surface ultimately contacts the shifting shaft in a stationary state. Compared to the prior art where a protrusion contacts a moving turntable, the impact on the shifting shaft is significantly reduced in this solution. Furthermore, this solution optimizes the structure of the limiting posts and guide units on the shifting shaft. Only two limiting posts are used, and the guiding surfaces of the guide unit are more gently sloping, especially the progressive guide surface, input guide surface, and output guide surface, which are not inclined as in the prior art. This structural optimization also helps mitigate the aforementioned impact, as the smoother working surfaces reduce the rotational speed achievable by the shifting shaft. In the prior art, the large inclination of the working surfaces results in a relatively closed angle between adjacent working surfaces, making it easy for foreign objects to accumulate and creating unsanitary corners. In this solution, the smoother working surfaces and wider angle between adjacent working surfaces eliminate unsanitary corners, allowing the surface to be cleaned simply by rinsing with water.

[0013] To prevent excessive contact between the shifting shaft and the lower guide surface when the button is pressed to its limit position, this technical solution incorporates a limiting structure. The button has ring-shaped barbs, which are movably connected to the upper cover. The upper cover has ring-shaped through holes to accommodate the barbs. The button has a limiting part I located between adjacent barbs, and the upper cover has a limiting part II located between adjacent through holes. Limiting parts I and II are opposite each other, and the maximum distance between them is less than the maximum distance from the limiting post to the lower guide surface. This ensures that the side of the limiting post of the shifting shaft contacts the lower guide surface, rather than the bottom surface. If the bottom surface of the limiting post contacts the lower guide surface, a frontal compression contact process would occur, which would intensify the impact and should be avoided. Contact between the side of the limiting post and the lower guide surface, to some extent, avoids a frontal impact and thus mitigates the impact.

[0014] To completely avoid the aforementioned frontal impact process, the positioning guide in this technical solution has a buffer channel between the input guide surface and the output guide surface. This prevents the bottom surface of the limiting post from contacting the lower guide surface.

[0015] To mitigate the impact caused by accidental button presses, the upper guide surface also includes a transition guide surface located between the holding surface and the departure guide surface. The transition guide surface intersects both the holding surface and the departure guide surface. The distance from the end of the transition guide surface that intersects the holding surface to the lower guide surface is greater than the distance from the end of the transition guide surface that intersects the departure guide surface to the lower guide surface.

[0016] The present invention adopts the above-mentioned technical solution: the structure of the shift guide inside the sealing cover is optimized to avoid synchronous reverse movement with the button, thereby reducing the impact on the shift shaft during the rotation stage and reducing wear; at the same time, the hygienic dead corner structure is eliminated, improving the maintainability of the sealing cover in terms of hygiene. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the assembly of the sealing cap according to the first embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the upper cover of the sealing cap according to the first embodiment of the present invention. Figure I ;

[0020] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0021] Figure 4 This is a schematic diagram of the structure of the upper cover of the sealing cap according to the first embodiment of the present invention. Figure II ;

[0022] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0023] Figure 6 This is a schematic diagram of the initial state structure of the sealing cap according to the first embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the working state structure of the sealing cover according to the first embodiment of the present invention. Detailed Implementation

[0025] like Figure 1 , 2 As shown in 3, 4, 5, 6, and 7, this is the first embodiment of the present invention.

[0026] The sealed container consists of two parts: a sealing cap and a container body. The sealing cap and the container body are detachably connected.

[0027] The sealing cover includes an upper cover 1, a lower cover 2, a button 3, a reset component, a repositioning component, and a sealing ring 4.

[0028] Button 3 is movably installed in the upper cover 1. The main body of button 3 is flat and disc-shaped; a connecting rod 5 is provided in the middle of one side of button 3, and barbs 6 are arranged in a ring on the edge of button 3. The upper cover 1 has a recessed structure with a through hole in the recessed structure, which is also arranged in a ring. During installation, after the barbs 6 of button 3 are deformed by external force, they pass through the through hole. After passing through the through hole, the barbs 6 return to their initial state and hook onto the upper cover 1. Button 3 can move relative to the upper cover 1 but cannot detach from the upper cover 1. In this way, button 3 is movably connected to the upper cover 1 through the barbs 6.

[0029] Button 3 has distributed limiting parts I7, each of which is located between adjacent barbs 6. The upper cover 1 has distributed limiting parts II8, each of which is located between adjacent through holes. The limiting parts I7 and II8 are in a relative position. When button 3 is inserted into the upper cover 1, the limiting parts I7 and II8 will abut against each other, thus restricting button 3 from entering the upper cover 1.

[0030] The reset component includes a base 9, a rocker arm 10, and a spring 11. The base 9 has a body and connecting posts. The body of the base 9 is a flat, disc-shaped structure with threads on its side. A total of four connecting posts are distributed on one side of the base 9, with two connecting posts forming a group. Each connecting post has a round hole at its end. The upper cover 1 has a through hole to facilitate the passage of the connecting posts. During installation, the base 9 is located on one side of the upper cover 1, and the connecting posts pass through the through hole to the other side of the upper cover 1. One end of the rocker arm 10 has a pivot, which is embedded in the round hole of the connecting post. The spring 11 is installed between the body of the base 9 and the upper cover 1. The spring 11 is always in a compressed state and always provides a tendency for the base 9 to move away from the upper cover 1. The rocker arm 10 has an eccentric structure at the end with the pivot structure. The connecting column that pushes the base 9 to one side by the spring 11 will pull the rocker arm 10. The eccentric structure of the rocker arm 10 can cause one end of the rocker arm 10 to tilt up. After the rocker arm 10 tilts up, it pushes the button 3 to a position away from the upper cover 1. The button 3 protrudes from the top of the upper cover 1, that is, the distance between the limiting part I 7 and the limiting part II 8 is at its maximum. At this time, the distance between the upper cover 1 and the lower cover 2 is at its maximum and they are in a separated state.

[0031] The transposition component includes a transposition shaft 12 and a transposition guide 14.

[0032] The shift shaft 12 has only one cylindrical body and two limiting posts 13. The limiting posts 13 have a circular cross-section and are distributed on the side of the cylindrical body, symmetrically distributed with respect to the center line of the cylindrical body. The shift shaft 12 is bolted to the connecting rod 5 of the button 3. The bolt passes through the cylindrical body, allowing the shift shaft 12 to rotate freely on the button 3.

[0033] The displacement guide 14 is a tubular structure, with its functional structure located inside, and the outside of the displacement guide 14 is fixedly connected to the upper cover 1.

[0034] The displacement guide 14 has a hollow internal structure, divided into a central channel 15, a movable channel 16, and a guide channel 17. The central channel 15 is straight, and its centerline coincides with the centerline of the displacement guide 14. The movable channels 16 and guide channels 17 are distributed around the centerline of the central channel 15. The displacement guide 14 has two straight movable channels 16 inside, located on either side of the central channel 15 and symmetrically distributed with respect to its centerline. The guide channels 17 are distributed around the central channel 15, and their centerlines coincide with the centerline of the central channel 15. The movable channels 16 and guide channels 17 are distributed along a direction parallel to the centerline of the central channel 15. The central channel 15, movable channels 16, and guide channels 17 are interconnected. The central channel 15 serves the columnar body; the movable channels 16 and guide channels 17 serve the limiting post 13. After installation, the transposition shaft 12 is located inside the transposition guide 14. The cylindrical body of the transposition shaft 12 always moves inside the central channel 15, and the two limiting posts 13 move within the active channel 16 and the guide channel 17.

[0035] The positioning guide 14 has only two sets of guide units at the guide channel 17. The guide units are movably connected to the limiting post 13 and guide the movement of the limiting post 13. The two sets of guide units are continuously distributed around the center line of the central channel 15.

[0036] Each guide unit includes an upper guide surface and a lower guide surface. The upper and lower guide surfaces are separate and distributed in a direction parallel to the center line of the central channel 15, with the guide channel 17 located between the upper and lower guide surfaces.

[0037] The upper guide surface includes a progressive guide surface, a holding surface 20, a transition guide surface 21, and a departure guide surface. The progressive guide surface, the holding surface 20, the transition guide surface 21, and the departure guide surface are arranged one after another in the same circumferential direction around the center line of the central channel 15.

[0038] The extension direction of the input end 18 of the progressive guide surface intersects the extension direction of the active channel 16, and the output end 19 of the progressive guide surface intersects the holding surface 20 and extends in a direction away from the lower guide surface.

[0039] The retaining surface 20 extends in the same circumferential direction around the centerline of the central channel 15. The transition guide surface 21 is located between the retaining surface 20 and the departing guide surface, intersecting both the retaining surface 20 and the departing guide surface. The distance from the end of the transition guide surface 21 where it intersects with the retaining surface 20 to the lower guide surface is greater than the distance from the end of the transition guide surface 21 where it intersects with the departing guide surface to the lower guide surface.

[0040] The distance from the input end 22 of the departure guide surface to the lower guide surface is less than the distance from the holding surface 20 to the lower guide surface, and the input end 22 of the departure guide surface extends in the direction towards the lower guide surface. The extension direction of the output end 23 of the departure guide surface intersects with the extension direction of the active channel 16, and the output end 23 of the departure guide surface extends away from the lower guide surface.

[0041] The lower guide surface includes the input guide surface and the output guide surface.

[0042] The input end 24 of the input guide surface extends into the active channel 16. The output end 25 of the input guide surface and the input end 18 of the progressive guide surface are in the same direction parallel to the center line of the central channel 15. The distance from the input end 24 of the input guide surface to the upper guide surface is less than the distance from the output end 25 of the input guide surface to the upper guide surface.

[0043] The input end 26 of the output guide surface and the holding surface 20 are in the same direction parallel to the center line of the central channel 15. The output end 27 of the output guide surface and the input end 22 of the departure guide surface are in the same direction parallel to the center line of the central channel 15. The distance from the input end 26 of the output guide surface to the upper guide surface is less than the distance from the output end 27 of the output guide surface to the upper guide surface.

[0044] The sealing ring 4 is installed on the lower cover 2, which is screwed onto the base 9 by threads. In the initial state, the button 3 protrudes from the upper cover 1, the upper cover 1 is separated from the lower cover 2, and the sealing ring 4 is in a retracted state.

[0045] In the initial state, the limiting post 13 of the shifting shaft 12 is within the active channel 16, and the reset component pushes the button 3 out, causing it to protrude from the top of the upper cover 1. When the limiting post 13 of the shifting shaft 12 is within the active channel 16, the shifting shaft 12 is restricted from rotating in the circumferential direction around the center line of the central channel 15. After pressing the button 3, the button 3 pushes the rocker arm 10 to swing, causing the base 9 to move towards the position of the upper cover 1. The spring 11 is further compressed, and the distance between the upper cover 1 and the lower cover 2 decreases. At the same time, the shifting shaft 12 moves along the active channel 16 and towards the position of the guide channel 17. After the limiting post 13 leaves the active channel 16 and enters the guide channel 17, the shifting shaft 12 can rotate. Within the guide channel 17, each limiting post 13 contacts the input guide surface in the lower guide surface of a guide unit. The limiting post 13 contacts the input end 24 of the input guide surface. While the shifting shaft 12 moves linearly along the center line of the central channel 15, it also rotates circumferentially around the center line of the central channel 15. The limiting post 13 will be positioned between the output end 25 of the input guide surface and the input end 18 of the progressive guide surface. Since the maximum distance between the limiting part I7 and the limiting part II8 is less than the maximum distance from the limiting post 13 to the lower guide surface, when the limiting part I7 of the button 3 is blocked by the limiting part II8 of the upper cover 1, the limiting post 13, after contacting the output end 25 of the input guide surface, will not extend downwards, maintaining contact between the side of the limiting post 13 and the input guide surface, and preventing the bottom of the limiting post 13 from contacting the lower guide surface.

[0046] After pressing and releasing button 3, spring 11 drives rocker arm 10 back to its initial state, pushing button 3 out of cover 1. As button 3 moves away from cover 1, shifting shaft 12 moves towards the position of the upper guide surface. Since the output end 25 of the input guide surface and the input end 18 of the progressive guide surface are in the same direction parallel to the center line of the central channel 15, the limiting post 13 directly contacts the input end 18 of the progressive guide surface after disengaging from the lower guide surface. Due to the guiding effect of the progressive guide surface, shifting shaft 12 continues to move linearly along the center line of the central channel 15 while rotating circumferentially around the center line of the central channel 15 until the limiting post 13 contacts the holding surface 20. At this time, the limiting post 13 is located between the input end 26 of the output guide surface and the holding surface 20. The holding surface 20 restricts the movement of the limiting post 13, thereby maintaining the position of shifting shaft 12 inside shifting guide 14. At this time, button 3 is not protruding from the surface of the upper cover 1. In the previous process, the upper cover 1 and the lower cover 2 were closed, and the sealing ring 4 was guided by the edge of the upper cover 1 and was in an unfolded state. It can be seen that the upper cover 1 and the lower cover 2 are movably connected by button 3 and the reset component.

[0047] The input end 26 of the output guide surface and the holding surface 20 are in the same direction parallel to the center line of the central channel 15. When button 3 is pressed again, the limiting post 13 moves toward the input end 26 of the output guide surface; the spring 11 is further compressed again. The output guide surface guides the shifting shaft 12 to move linearly along the center line of the central channel 15 while rotating circumferentially around the center line of the central channel 15 until the limiting post 13 is located between the output end 27 of the output guide surface and the input end 22 of the departure guide surface. Also affected by the setting that the maximum distance between the limiting part I 7 and the limiting part II 8 is less than the maximum distance from the limiting post 13 to the lower guide surface, the limiting post 13 does not extend downward after contacting the output end 27 of the output guide surface, keeping the side of the limiting post 13 in contact with the output guide surface, and avoiding contact between the bottom of the limiting post 13 and the lower guide surface. After releasing button 3, since the output end 27 of the output guide surface and the input end 22 of the departure guide surface are in the same direction parallel to the center line of the central channel 15, the limiting post 13 directly contacts the input end 22 of the departure guide surface after disengaging from the output guide surface. Because the force of the spring 11 is transmitted to button 3 through the rocker arm 10, button 3 pulls the shifting shaft 12 to move in the direction of disengaging from the guide channel 17. The departure guide surface guides the shifting shaft 12 to move. The shifting shaft 12 moves linearly along the center line of the central channel 15 while rotating circumferentially around the center line of the central channel 15. When the limiting post 13 disengages from the departure guide surface, it directly enters the active channel 16. The shifting shaft 12 returns to its initial state, the upper cover 1 and the lower cover 2 separate, and the sealing ring 4 disengages from the upper cover 1 and retracts.

[0048] Thus, after the sealing cap is installed on the tank body, the upper cap 1 covers the edge of the tank opening. The lower cap 2 is sealed to the inner wall of the tank body by the unfolded sealing ring 4.

[0049] The second embodiment of the present invention differs from the first embodiment in that a buffer channel is provided inside the transposition guide between the input guide surface and the output guide surface, which also avoids the bottom of the limiting post being supported.

Claims

1. A sealing cover, the sealing cover comprising an upper cover (1), a lower cover (2), a button (3), a reset component, and a repositioning component, wherein the button (3) is embedded in the upper cover (1) and movably connected to the upper cover (1), the upper cover (1) and the lower cover (2) are movably connected via the button (3) and the reset component, the repositioning component comprising a repositioning shaft (12) and a repositioning guide (14), the repositioning shaft (12) being movably mounted on the button (3), characterized in that... The transposition shaft (12) has only one columnar body and two limiting posts (13). The cross-section of the limiting posts (13) is circular. The limiting posts (13) are distributed on the side of the columnar body and are symmetrically distributed with respect to the center line of the columnar body. The transposition guide (14) is a tubular structure and is connected to the upper cover (1). The transposition guide (14) has a straight central channel (15) corresponding to the columnar body, and an active channel (16) and a guide channel (17) corresponding to the limiting posts (13). The transposition guide (14) has two straight active channels (16) inside. The active channels (16) are distributed on both sides of the central channel (15) and are symmetrically distributed with respect to the center line of the central channel (15). The guide channel (17) is distributed around the central channel (15) and the center line of the guide channel (17) is symmetrical with respect to the center line of the central channel (15). The center lines of the 5) coincide, the movable channel (16) and the guide channel (17) are distributed along the direction parallel to the center line of the central channel (15), the central channel (15), the movable channel (16) and the guide channel (17) are interconnected, the column moves within the central channel (15), the limiting post (13) moves within the movable channel (16) and the guide channel (17), the displacement guide (14) has only two sets of guide units at the guide channel (17), the guide unit is movably connected to the limiting post (13) and the guide unit guides the limiting post (13) to move, the two sets of guide units are continuously distributed around the center line of the central channel (15), each set of guide units includes an upper guide surface and a lower guide surface, the upper guide surface and the lower guide surface are separated and distributed in the direction parallel to the center line of the central channel (15), the guide channel (17) is located between the upper guide surface and the lower guide surface,The upper guide surface includes a progressive guide surface, a holding surface (20), and a departing guide surface. The progressive guide surface, holding surface (20), and departing guide surface are arranged sequentially in the same circumferential direction around the center line of the central channel (15). The extension direction of the input end (18) of the progressive guide surface intersects the extension direction of the active channel (16). The output end (19) of the progressive guide surface intersects with the holding surface (20) and extends in a direction away from the lower guide surface. The holding surface (20) extends in the same circumferential direction around the center line of the central channel (15). The output end (19) of the progressive guide surface intersects with the holding surface (20) and extends in a direction away from the lower guide surface. The distance from the input end (22) to the lower guide is less than the distance from the holding surface (20) to the lower guide surface, and the input end (22) of the departure guide surface extends in the direction towards the lower guide surface. The extension direction of the output end (23) of the departure guide surface intersects the extension direction of the active channel (16), and the output end (23) of the departure guide surface extends away from the lower guide surface. The lower guide surface includes an input guide surface and an output guide surface. The input end (24) of the input guide surface extends into the active channel (16), and the output end (25) of the input guide surface intersects with the input end (24) of the progressive guide surface. 18) In the same direction parallel to the center line of the central channel (15), the distance from the input end (24) of the input guide surface to the upper guide surface is less than the distance from the output end (25) of the input guide surface to the upper guide surface. The input end (26) of the output guide surface and the holding surface (20) are in the same direction parallel to the center line of the central channel (15). The output end (27) of the output guide surface and the input end (22) of the departure guide surface are in the same direction parallel to the center line of the central channel (15). The distance from the input end (26) of the output guide surface to the upper guide surface is less than the distance from the input end (25) of the input guide surface to the upper guide surface. The distance from the output end (27) of the output guide surface to the upper guide surface is such that the button (3) is provided with barbs (6) arranged in a ring. The button (3) is movably connected to the upper cover (1) through the barbs (6). The upper cover (1) is provided with through holes arranged in a ring for accommodating the barbs (6). The button (3) is provided with a limiting part I (7). The limiting part I (7) is located between adjacent barbs (6). The upper cover (1) is provided with a limiting part II (8). The limiting part II (8) is located between adjacent through holes. The limiting part I (7) and the limiting part II (8) are opposite to each other.The maximum distance between the limiting part I (7) and the limiting part II (8) is less than the maximum distance from the limiting post (13) to the lower guide surface. The shifting guide (14) has a buffer channel between the input guide surface and the output guide surface. The upper guide surface also includes a transition guide surface (21) located between the holding surface (20) and the departing guide surface. The transition guide surface (21) intersects with both the holding surface (20) and the departing guide surface. The distance from the intersection of the transition guide surface (21) and the holding surface (20) to the lower guide surface is greater than the distance from the intersection of the transition guide surface (21) and the departing guide surface to the lower guide surface.

2. A sealed container, the sealed container comprising a sealing cover and a container body, the sealing cover comprising an upper cover (1), a lower cover (2), a button (3), a reset component, a shifting component, and a sealing ring (4), the button (3) being embedded in the upper cover (1) and movably connected to the upper cover (1), the upper cover (1) and the lower cover (2) being movably connected via the button (3) and the reset component, the upper cover (1) covering the edge of the container opening of the container body, the sealing ring (4) being mounted on the lower cover (2), the lower cover (2) being sealed to the inner wall of the container body via the unfolded sealing ring (4), the shifting component comprising a shifting shaft (12) and a shifting guide (14), the shifting shaft (12) being movably mounted on the button (3), characterized in that The transposition shaft (12) has only one columnar body and two limiting posts (13). The cross-section of the limiting posts (13) is circular. The limiting posts (13) are distributed on the side of the columnar body and are symmetrically distributed with respect to the center line of the columnar body. The transposition guide (14) is a tubular structure and is connected to the upper cover (1). The transposition guide (14) has a straight central channel (15) corresponding to the columnar body, and an active channel (16) and a guide channel (17) corresponding to the limiting posts (13). The transposition guide (14) has two straight active channels (16) inside. The active channels (16) are distributed on both sides of the central channel (15) and are symmetrically distributed with respect to the center line of the central channel (15). The guide channel (17) is distributed around the central channel (15) and the center line of the guide channel (17) is symmetrical with respect to the center line of the central channel (15). The center lines of the 5) coincide, the movable channel (16) and the guide channel (17) are distributed along the direction parallel to the center line of the central channel (15), the central channel (15), the movable channel (16) and the guide channel (17) are interconnected, the column moves within the central channel (15), the limiting post (13) moves within the movable channel (16) and the guide channel (17), the displacement guide (14) has only two sets of guide units at the guide channel (17), the guide unit is movably connected to the limiting post (13) and the guide unit guides the limiting post (13) to move, the two sets of guide units are continuously distributed around the center line of the central channel (15), each set of guide units includes an upper guide surface and a lower guide surface, the upper guide surface and the lower guide surface are separated and distributed in the direction parallel to the center line of the central channel (15), the guide channel (17) is located between the upper guide surface and the lower guide surface,The upper guide surface includes a progressive guide surface, a holding surface (20), and a departing guide surface. The progressive guide surface, holding surface (20), and departing guide surface are arranged sequentially in the same circumferential direction around the center line of the central channel (15). The extension direction of the input end (18) of the progressive guide surface intersects the extension direction of the active channel (16). The output end (19) of the progressive guide surface intersects with the holding surface (20) and extends in a direction away from the lower guide surface. The holding surface (20) extends in the same circumferential direction around the center line of the central channel (15). The output end (19) of the progressive guide surface intersects with the holding surface (20) and extends in a direction away from the lower guide surface. The distance from the input end (22) to the lower guide is less than the distance from the holding surface (20) to the lower guide surface, and the input end (22) of the departure guide surface extends in the direction towards the lower guide surface. The extension direction of the output end (23) of the departure guide surface intersects the extension direction of the active channel (16), and the output end (23) of the departure guide surface extends away from the lower guide surface. The lower guide surface includes an input guide surface and an output guide surface. The input end (24) of the input guide surface extends into the active channel (16), and the output end (25) of the input guide surface intersects with the input end (24) of the progressive guide surface. 18) In the same direction parallel to the center line of the central channel (15), the distance from the input end (24) of the input guide surface to the upper guide surface is less than the distance from the output end (25) of the input guide surface to the upper guide surface. The input end (26) of the output guide surface and the holding surface (20) are in the same direction parallel to the center line of the central channel (15). The output end (27) of the output guide surface and the input end (22) of the departure guide surface are in the same direction parallel to the center line of the central channel (15). The distance from the input end (26) of the output guide surface to the upper guide surface is less than the distance from the input end (25) of the input guide surface to the upper guide surface. The distance from the output end (27) of the output guide surface to the upper guide surface is such that the button (3) is provided with barbs (6) arranged in a ring. The button (3) is movably connected to the upper cover (1) through the barbs (6). The upper cover (1) is provided with through holes arranged in a ring for accommodating the barbs (6). The button (3) is provided with a limiting part I (7). The limiting part I (7) is located between adjacent barbs (6). The upper cover (1) is provided with a limiting part II (8). The limiting part II (8) is located between adjacent through holes. The limiting part I (7) and the limiting part II (8) are opposite to each other.The maximum distance between the limiting part I (7) and the limiting part II (8) is less than the maximum distance from the limiting post (13) to the lower guide surface. The shifting guide (14) has a buffer channel between the input guide surface and the output guide surface. The upper guide surface also includes a transition guide surface (21) located between the holding surface (20) and the departing guide surface. The transition guide surface (21) intersects with both the holding surface (20) and the departing guide surface. The distance from the intersection of the transition guide surface (21) and the holding surface (20) to the lower guide surface is greater than the distance from the intersection of the transition guide surface (21) and the departing guide surface to the lower guide surface.

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