Gravity balance sealing tank

By using a gravity-balanced lid design and a counterweight, the problem of quickly opening the sealed container with one hand has been solved, achieving simple operation and a good sealing effect.

CN224061587UActive Publication Date: 2026-03-31NINGBO RAFFINI IMPORT & EXPORT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing sealed containers are cumbersome to open, making it impossible to open them quickly with one hand.

Method used

The gravity-balanced cover design uses a counterweight to balance the gravity between the pressing part and the opening part. Pressing the pressing part with one hand can break the gravity balance, causing the opening part to pop up and open. Multiple sealing rings enhance the sealing effect.

Benefits of technology

It enables quick one-handed opening, is easy to operate, has a good sealing effect, and has a high volume utilization rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of sealing tanks, and discloses a gravity balance sealing tank which comprises a tank body, a top cover assembly and a gravity balance cover, the gravity balance cover is rotationally connected with the top cover assembly, the gravity balance cover is contained between the tank body and the top cover assembly, the two ends of the gravity balance cover are provided with a pressing part and a cover opening part respectively, and a balancing weight is arranged in the gravity balance cover. The balancing weight is used for balancing the gravity between the pressing part and the cover opening part; when the cover opening part is closed, the cover opening part and the pressing part are in a gravity balance state; and when the pressing part is pressed and the gravity balance state is broken, the pressing part sinks to enable the uncovering part to upwarp and open. The gravity between the pressing part and the cover opening part is balanced through the balancing weight, and when the cover opening part needs to be closed, the cover opening part is pressed until the cover opening part is closed, and the gravity balance state can be returned again. Operation is simple, and uncovering can be completed with one hand more conveniently and quickly.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a sealed jar technical field, specifically, relates to a gravity balance sealed jar. BACKGROUND

[0002] The sealed jar is a jar for storing food, which is isolated from air to prevent the food from being damp and mildewed. Because of its light weight, portability and strong practicability, the sealed jar is widely used in daily production and life. In order to ensure the sealing of the jar, the existing sealed jar needs to be opened by rotating the threaded cover or breaking a plurality of buckles, which is troublesome and cannot be opened quickly with one hand. SUMMARY

[0003] To solve at least one aspect of the above problem, the utility model provides a gravity balance sealed jar first, including jar body, top cover assembly and gravity balance cover, the gravity balance cover is rotatably connected with the jar body or the top cover assembly, both ends of the gravity balance cover are respectively provided with pressing part and opening part, the gravity balance cover is provided with counterweight, the counterweight is used for balancing the gravity between the pressing part and the opening part, when the opening part is closed, the opening part and the pressing part are in the state of gravity balance, when the pressing part is pressed, the opening part is opened by the pressing part sinking.

[0004] Optionally, the top cover assembly includes an outer cover and an inner cover, the outer cover is sleeved on the inner cover, the gravity balance cover and the inner cover are rotatably connected.

[0005] Optionally, the pressing part is provided with a button, the inner cover is provided with an opening matched with the button, a first installation groove is circumferentially recessed on the outer wall of the button, a first sealing ring is installed in the first installation groove, and the first sealing ring is in abutment with the inner wall of the opening to increase the friction and achieve the sealing effect.

[0006] Optionally, a second installation groove is circumferentially recessed on the opening part, a second sealing ring is installed in the second installation groove, a limiting wall is arranged on the inner cover, and the second sealing ring is in abutment with the limiting wall to increase the friction and achieve the sealing effect.

[0007] Optionally, a clamping groove is arranged on the outer cover, the opening part is provided with a clamping buckle matched with the clamping groove, and the opening part is closed when the clamping groove and the clamping buckle are clamped.

[0008] Optionally, a third installation groove is circumferentially recessed on the inner cover, a third sealing ring is installed in the third installation groove, and the third sealing ring is in abutment with the inner side wall of the jar body to achieve the sealing effect.

[0009] Optionally, the gravity balance cover further comprises a connecting portion, two ends of the connecting portion are fixedly connected with the cover opening portion and the pressing portion respectively.

[0010] Optionally, a groove portion is arranged on the tank body, and the groove portion facilitates palm holding.

[0011] Optionally, the pressing portion is slidingly connected with a sliding cover, an installation cavity is formed between the sliding cover and the pressing portion, and the counterweight is accommodated in the installation cavity.

[0012] Optionally, a partition wall is arranged in the installation cavity, the partition wall divides the installation cavity into a first cavity and a second cavity, the counterweight is accommodated in the first cavity, and the second cavity is adapted to store a dry bag.

[0013] Compared with the prior art, the gravity balance sealing tank in the utility model can balance the gravity between the pressing portion and the cover opening portion through the counterweight, can break the gravity balance state when the pressing portion is pressed by a finger, can move the pressing portion downward under the influence of gravity, can make the cover opening portion be lifted and opened, and can return to the gravity balance state when the cover opening portion is pressed to be closed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 FIG. 1 is a structural view of a gravity balance sealing tank according to an embodiment of the utility model;

[0015] Figure 2 FIG. 2 is a sectional view of the gravity balance sealing tank according to the embodiment of the utility model;

[0016] Figure 3 FIG. 3 is an enlarged view of A in FIG. 1; Figure 2 FIG. 4 is an enlarged view of B in FIG. 1;

[0017] Figure 4 FIG. 5 is an exploded view of a top cover assembly and a gravity balance cover according to the embodiment of the utility model; Figure 2 FIG. 6 is a structural view of the gravity balance cover according to the embodiment of the utility model.

[0018] Figure 5

[0019] Figure 6

[0020] BRIEF DESCRIPTION OF REFERENCE NUMERALS:

[0021] ​​1, tank body; 11, groove part; 2, top cover assembly; 21, outer cover; 211, clamping groove; 212, limiting groove; 22, inner cover; 221, opening; 222, limiting wall; 223, third sealing ring; 224, elastic limiting buckle; 225, conveying port; 3, gravity balance cover; 31, pressing part; 311, button; 312, first sealing ring; 32, cover opening part; 321, second sealing ring; 322, buckle; 33, counterweight; 34, connecting part; 35, sliding cover; 36, mounting cavity; 361, first cavity; 362, second cavity. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the drawings.

[0023] The utility model embodiment provides a kind of gravity balance sealed tank, combined Figures 1 to 6 As shown in the figure, including tank body 1, top cover assembly 2 and gravity balance cover 3, the gravity balance cover 3 is rotatably connected to the tank body 1 or the top cover assembly 2, both ends of the gravity balance cover 3 are respectively provided with pressing part 31 and cover opening part 32, counterweight 33 is arranged in the gravity balance cover 3, and the counterweight 33 is used to balance the gravity between the pressing part 31 and the cover opening part 32;When the cover opening part 32 is closed, the cover opening part 32 and the pressing part 31 are in the state of gravity balance;When the pressing part 31 is pressed, the state of gravity balance is broken, the pressing part 31 sinks to make the cover opening part 32 upwarp and open.

[0024] As Figures 1 to 3 As shown in the figure, in the embodiment, the gravity balance cover 3 is contained between the tank body 1 and the top cover assembly 2, and the counterweight 33 is arranged on the pressing part 31, according to the principle of lever, shorter pressing part 31 and longer cover opening part 32 are arranged to cooperate, and the gravity of the pressing part 31 and the cover opening part 32 is balanced. When the cover opening part 32 is opened, because the pressing part 31 is shorter, the volume occupied in the tank body 1 is smaller, and the available volume is larger. In other embodiments, counterweights 33 of different weights can be arranged on the cover opening part 32 and the pressing part 31 simultaneously to realize gravity balance.

[0025] Optionally, the top cover assembly 2 includes outer cover 21 and inner cover 22, the outer cover 21 is sleeved on the inner cover 22, and the gravity balance cover 3 and the inner cover 22 are rotatably connected.

[0026] As Figure 5As shown, in the present embodiment, the pressing part 31 is provided with a rotating shaft, and the pressing part 31 is rotatably connected with the inner cover 22 through the rotating shaft. The inner cover 22 is provided with a plurality of elastic limiting buckles 224, and the outer cover 21 is provided with a plurality of limiting grooves 212. The elastic limiting buckles 224 and the limiting grooves 212 are clamped to fix the outer cover 21 and the inner cover 22. The inner cover 22 is further provided with a plurality of strip-shaped ribs to assist positioning and make the structure more stable.

[0027] The inner cover 22 is provided with a conveying port 225, and the opening cover 32 is connected with the conveying port 225. When it is needed to open the conveying port 225 to pour out food, only a small force is needed to press the pressing part 31 to unseal the opening cover 32 and the conveying port 225, and then the opening cover 32 is opened under the driving of the rotating shaft. The pressing part 31 will sink under the influence of gravity, but since only a small pressing force is needed to open the opening cover 32, the opening cover 32 will slightly shake up and down, and when the can body 1 is held and poured out, the opening degree between the opening cover 32 and the conveying port 225 is larger, which is convenient for pouring out food, and compared with the prior art, the pressing part 31 occupies a smaller volume in the can body 1, and a larger volume is left to accommodate food.

[0028] As shown, Figure 3 Optionally, the pressing part 31 is provided with a button 311, the inner cover 22 is provided with an opening 221 matched with the button 311, a first installation groove is circumferentially recessed on the outer wall of the button 311, and a first sealing ring 312 is installed in the first installation groove. The first sealing ring 312 is adapted to abut against the inner wall of the opening 221 to increase the friction force and achieve a sealing effect.

[0029] Optionally, a second installation groove is circumferentially recessed on the opening cover 32, a second sealing ring 321 is installed in the second installation groove, the inner cover 22 is provided with a limiting wall 222, and the second sealing ring 321 abuts against the limiting wall 222 to increase the friction force and achieve a sealing effect.

[0030] As shown, Figure 4 In the present embodiment, when the opening cover 32 is closed, the first sealing ring 312 and the second sealing ring 321 cooperate to increase the friction force between the opening cover 32 and the pressing part 31, so that the gravity balance cover 3 can be stably balanced in the gravity balance state and does not swing randomly.

[0031] Optionally, the outer cover 21 is provided with a clamping groove 211, the opening cover 32 is provided with a clamping buckle 322 matched with the clamping groove 211, when the clamping groove 211 and the clamping buckle 322 are clamped, the second sealing ring 321 abuts against the inner wall of the conveying port 225 to achieve a sealing effect, and the opening cover 32 is closed.

[0032] As shown, Figure 4 and5 As shown, in this embodiment, the buckle 322 and the slot 211 cooperate to stabilize the position of the opening part 32, so that the gravity balance cover 3 can be stabilized in a state of gravity balance. At the same time, the user can also open the opening part 32 by prying open the buckle 322, so that the gravity balance sealed container has two opening methods.

[0033] Optionally, the inner cover 22 is provided with a third mounting groove in the circumferential direction, and a third sealing ring 223 is installed in the third mounting groove. The third sealing ring 223 abuts against the inner sidewall of the tank body 1 to achieve a sealing effect.

[0034] like Figure 4 and 5 As shown, in this embodiment, the top cover assembly 2 and the can body 1 are detachably connected. The third sealing ring 223 is used to seal the gap between the top cover assembly 2 and the can body 1, so that gravity balances and seals the entire can. Both the second sealing ring 321 and the third sealing ring 223 have annular abutment portions protruding from their sidewalls. The abutment portion on the second sealing ring 321 abuts against the inner cover 22, increasing the friction between the second sealing ring 321 and the inner cover 22 for a better sealing effect. The abutment portion on the third sealing ring 223 abuts against the can body 1, increasing the friction between the third sealing ring 223 and the can body 1 for a better sealing effect. Compared to the prior art which only uses one sealing ring to seal the can body 1, this invention uses three sealing rings to seal three different parts, thereby achieving a better sealing effect.

[0035] Optionally, the gravity balance cover 3 further includes a connecting part 34, the two ends of which are fixedly connected to the opening part 32 and the pressing part 31, respectively.

[0036] like Figure 6 As shown, in this embodiment, the connecting part 34 is arc-shaped and has reinforcing ribs. The gravity balance cover 3 can be integrally injection molded.

[0037] like Figure 1 As shown, optionally, the can body 1 is provided with a recessed portion 11, which is convenient for the hand to grip. When the user holds the recessed portion 11, they can extend their fingers to press the pressing portion 31, thereby completing the one-handed opening operation, which is simpler and more convenient. In other embodiments, a handle can also be provided at the upper end of the can body 1, so that the food inside the gravity-balanced can can be poured out by holding the handle and tilting the can body 1.

[0038] Optionally, the pressing part 31 is slidably connected to a sliding cover 35, and a mounting cavity 36 is formed between the sliding cover 35 and the pressing part 31, and the counterweight 33 is accommodated in the mounting cavity 36.

[0039] like Figure 3 and6 As shown, in this embodiment, the edge of the sliding cover 35 is provided with a sliding groove, and the bottom of the pressing part 31 is provided with a slider. The sliding groove and the slider cooperate to allow the sliding cover 35 and the pressing part 31 to slide together, which facilitates the installation of the counterweight 33 while ensuring that the sliding cover 35 rests on the bottom of the counterweight 33 to prevent the counterweight 33 from falling off. A limiting step is provided between the bottom of the mounting cavity 36 and the inner wall of the pressing part 31. The limiting step and the slider cooperate to form a connecting cavity. The sliding groove is slidably connected to the connecting cavity, which is used for pre-positioning the sliding cover 35 during installation.

[0040] like Figure 3 As shown, optionally, the mounting cavity 36 is provided with a partition wall, which divides the mounting cavity 36 into a first chamber 361 and a second chamber 362. The counterweight 33 is accommodated in the first chamber 361, and the second chamber 362 is suitable for storing the desiccant pack. In this embodiment, the weight of the desiccant pack should not be too heavy to avoid disrupting the gravitational balance.

[0041] Compared to existing technologies, the gravity-balanced sealing can of this invention uses a counterweight 33 to balance the gravity between the pressing part 31 and the opening part 32. When one hand holds the groove 11 on the can body 1 and presses the pressing part 31 with a finger, the gravity balance is broken. The pressing part 31 moves downward under the influence of gravity, causing the opening part 32 to tilt up and open, releasing the seal between the opening part 32 and the delivery port 225. Then, holding the can body 1 and pressing the opening part 31 with a finger breaks the gravity balance. Figure 1 When the can body 1 is tilted to the left, the opening part 32 and the pressing part 31 are balanced by the pivot of the gravity-balanced cover 3. The delivery port 225 is far away from the cover part 32, so that the delivery port 225 can be opened wider, and then the food can be easily poured out with one hand.

[0042] When it is necessary to close and seal the delivery port 225, hold the can body 1 and rotate it in the opposite direction to reset it. At this time, the opening part 32 rotates around the axis of the gravity balance cover 3 and moves closer to the delivery port 225. Then, press the opening part 32 so that the second sealing ring 321 abuts against the inner wall of the inner cover 22. Press the buckle 322 so that it engages with the slot 211, thus achieving a seal between the delivery port 225 and the opening part 32. In this way, opening and closing the lid can be completed with one hand, easily achieving the purpose of pouring out food.

[0043] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0044] In the description of the present disclosure, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present disclosure.

[0045] In addition, the terms "first", "second", and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "a plurality of" is at least two, for example, two, three, and the like, unless otherwise explicitly specified and limited.

[0046] In the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0047] In the present disclosure, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] It should be noted that when an element is referred to as being "fixed", "attached", "connected" or "mounted" to another element, it can be directly on the other element or intervening elements can also be present. In addition, when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present. Further, where an element is referred to as being "fixed", "attached", "connected" or "mounted", it can be fixed, attached, connected or mounted directly or indirectly to the other element, and any other elements can be directly or indirectly coupled between them. It should be noted that the terms "comprise", "comprising", "comprised", "comprising" or any variation thereof are used synonymously with "include", "including", "includes" or "contain", "containing", "contains" and will be understood to express the inclusion of a non- exhaustive list of one or more members that are described.

[0049] Any combination of the above-described technical features of the above embodiments can be made, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist, it should be considered that it is within the scope of the present disclosure.

[0050] The above embodiments only express several implementation manners of the present disclosure, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for those skilled in the art, without departing from the utility model concept of the present disclosure, a number of modifications and improvements can be made, which are all within the protection scope of the present disclosure.

Claims

1. A gravity balanced sealed tank characterized by, The application relates to a can body (1), a top cover assembly (2) and a gravity balance cover (3) which is rotationally connected to the can body (1) or the top cover assembly (2), and two ends of the gravity balance cover (3) are respectively provided with a pressing part (31) and a cover opening part (32), a counterweight (33) is arranged in the gravity balance cover (3) and is used for balancing the gravity between the pressing part (31) and the cover opening part (32); when the cover opening part (32) is closed, the cover opening part (32) and the pressing part (31) are in a gravity balance state; when the pressing part (31) is pressed to break the gravity balance state, the pressing part (31) sinks to make the cover opening part (32) upturn and open.

2. The gravity balanced sealed tank of claim 1, wherein, The top cover assembly (2) comprises an outer cover (21) and an inner cover (22), the outer cover (21) is sleeved on the inner cover (22), and the gravity balance cover (3) and the inner cover (22) are rotationally connected.

3. The gravity balanced sealed tank of claim 2, wherein, The pressing part (31) is provided with a button (311), the inner cover (22) is provided with an opening (221) matched with the button (311), a first mounting groove is circumferentially recessed on the outer wall of the button (311), a first sealing ring (312) is mounted in the first mounting groove, and the first sealing ring (312) is adapted to abut against the inner wall of the opening (221) to increase the friction and achieve a sealing effect.

4. The gravity balanced sealed tank of claim 2, wherein, A second mounting groove is circumferentially recessed on the cover opening part (32), a second sealing ring (321) is mounted in the second mounting groove, a limiting wall (222) is arranged on the inner cover (22), and the second sealing ring (321) abuts against the limiting wall (222) to increase the friction and achieve a sealing effect.

5. The gravity balanced sealed tank of claim 2, wherein, A clamping groove (211) is arranged on the outer cover (21), the cover opening part (32) is provided with a buckle (322) matched with the clamping groove (211), and the cover opening part (32) is closed when the clamping groove (211) and the buckle (322) are clamped.

6. The gravity balanced sealed canister of claim 2, wherein, A third mounting groove is circumferentially recessed on the inner cover (22), a third sealing ring (223) is mounted in the third mounting groove, and the third sealing ring (223) abuts against the inner side wall of the can body (1) to achieve a sealing effect.

7. The gravity balanced sealed canister of claim 1, wherein, The gravity balance cover (3) further comprises a connecting part (34), and two ends of the connecting part (34) are fixedly connected with the cover opening part (32) and the pressing part (31) respectively.

8. The gravity balanced sealed canister of claim 1, wherein, A recess part (11) is arranged on the can body (1), and the recess part (11) facilitates palm holding.

9. The gravity balanced sealed tank according to any of claims 1-8, wherein, A sliding cover (35) is slidably connected with the pressing part (31), an installation cavity (36) is formed between the sliding cover (35) and the pressing part (31), and the counterweight (33) is contained in the installation cavity (36).

10. The gravity balanced sealed tank of claim 9, wherein, A partition wall is arranged in the installation cavity (36), the partition wall divides the installation cavity (36) into a first cavity (361) and a second cavity (362), the counterweight (33) is contained in the first cavity (361), and the second cavity (362) is adapted to store dry bags.