Double-buckle sealing container

Abstract

The invention relates to the field of containers for object or material storage, in particular to a double-buckle sealing container. Comprising a cover body, a box body and a pair of lock catches which are only rotationally connected with the two sides of the cover body, in the buckling action, the lock catches pull the cover body to move towards the box body, the cover body is pressed on the box body through the movement, and a sealing face is formed between the cover body and the box body; the projection of the rotary connecting end of the lock catch on the cover body on the plane where the sealing face is located is arranged in a closed area formed by the sealing face. The rotary connecting end locked on the cover body is arranged at the position close to the middle of the cover body, and the projection of the rotary connecting end on the plane where the sealing face is located is arranged in the closed area formed by the sealing face. By means of the design, a stress lever of the cover body is changed, the problem that the cover body arches along the center line in the buckled state is solved, and therefore the sealing effect of the two buckle-free ends of the cover body is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of containers for storing objects or materials, in particular to a double-buckle sealed container. Background Art

[0002] Sealed containers in the prior art, especially sealed containers with rectangular structures, usually use a four-buckle structure to ensure the sealing effect. These buckles are arranged around the periphery of the cover body, one end of each buckle is rotatably connected to the cover body, and the other end is buckled with the box body. When buckling the cover body, all four buckles need to be buckled, and when opening the cover body, at least three buckles need to be opened to complete the operation of opening the cover. This design makes the operation process relatively cumbersome.

[0003] Although there are double-buckle sealed containers in the prior art, some of these double-buckle containers are made of stainless steel, which has the following disadvantages: they cannot be heated in a microwave oven; they are easily scratched and may harbor dirt; inferior stainless steel may precipitate heavy metals; and they are not suitable for holding acidic foods (such as tomatoes and vinegar). Compared with glass lunch boxes, they are not suitable for the needs of home users or office workers.

[0004] Although the other double-buckle containers are made of glass, they need to use a special-shaped sealing ring, and rely on the radial expansion of this special-shaped sealing ring to form a large friction with the inner wall of the box body to achieve a sealing effect. The cost is that this kind of sealing ring is expensive, and the friction between it and the box body makes it very difficult to open the lid. Summary of the invention

[0005] The purpose of the present invention is to provide a double-buckle sealed container to solve the problem of complicated opening and closing processes of sealed containers in the prior art.

[0006] The technical solution of the present invention is: a double-buckle sealed container, comprising a cover body, a box body, and a pair of lock buckles rotatably connected only to two sides of the cover body, wherein during the buckling action, the lock buckles pull the cover body toward the box body, and through this movement, the cover body is pressed against the box body and a sealing surface is formed between the box body; The projection of the rotating connection end of the lock buckle on the cover body on the plane where the sealing surface is located is placed in the closed area formed by the sealing surface.

[0007] Preferably, the lock comprises a connecting section and a buckling section; One end of the connecting section is rotatably connected to the cover body, and the other end is fixed to the buckling section; The buckling section is provided with a buckling structure for buckling with the box body, and forms an angle with the connecting section, and the angle enables the connecting section in the buckled state to be synchronously fitted with the cover body.

[0008] Preferably, there is a pressure relief hole, which is arranged at a position on the cover body corresponding to the connecting section, and the connecting section is provided with a plug to cooperate with the pressure relief hole; the plug is configured to seal the pressure relief hole in a buckled state, and move out of the pressure relief hole in response to the separation of the lock and the box body.

[0009] Preferably, a first locator is provided near the pressure relief hole, and a second locator is provided in cooperation with the locating groove of the connecting section. The first locator cooperates with the second locator in a snap-fit ​​state to move the plug radially along the pressure relief hole.

[0010] Preferably, a limiting protrusion is provided at one end of the cover body close to the box body, and the rotational connection end of the limiting protrusion and the lock buckle and the buckling end of the lock buckle and the box body are in the same vertical plane.

[0011] Preferably, the cover body comprises a first component arranged at a central position and a second component arranged around the first component, and the first component has a higher elastic modulus than the second component.

[0012] Preferably, the first component is made of glass, and the second component is made of plastic or silicone.

[0013] A double-buckle sealed container comprises a cover body, a box body and a pair of lock buckles rotatably connected to only two sides of the cover body, a sealing ring is arranged between the cover body and the box body, and the sealing ring is configured such that: when the lock buckle is buckled with the box body, the sealing ring is compressed and forms a sealing surface between the cover body and the box body; and in response to the separation of the lock buckle from the box body, the cover body and the box body are driven to separate by elastic reset; The projection of the rotating connection end of the lock buckle on the cover body on the plane where the sealing surface is located is placed in the closed area formed by the sealing surface.

[0014] Preferably, the cross-section of the lock buckle parallel to its own width direction is set to an L-shaped structure. When the cover is opened, the outer wall of the lock buckle abuts against the top of the cover body to form a fulcrum, and therefore the part of the lock buckle away from the rotating connection end with the cover body can be constructed as a handle.

[0015] Preferably, there is a pressure relief hole, which is arranged at a position on the cover body corresponding to the lock buckle, and the lock buckle is provided with a plug to cooperate with the pressure relief hole; the plug is configured to seal the pressure relief hole in the buckled state, and move out of the pressure relief hole in response to the separation of the lock buckle and the box body.

[0016] Compared with the prior art, the advantages of the present invention are: (1) The sealed container of the present invention has only two lock buckles on both sides of the lid. Compared with the four-buckle structure of the prior art, the workload of closing the lid can be reduced by half, and the lid can be removed from the box body by opening only one lock buckle, which reduces the workload by three times. After the lock buckle is separated from the box body, the sealing ring does not generate friction with the box body, so the lid can be easily separated from the box body, making the opening and closing of the lid more convenient.

[0017] (2) The present invention sets the rotating connection end locked on the cover body at a position close to the middle of the cover body, and places the projection of the rotating connection end on the plane where the sealing surface is located within the closed area formed by the sealing surface. This design changes the force lever of the cover body, avoids the problem of the cover body arching along the center line when in the buckled state, and thus ensures the sealing effect of the cover body without buckling ends at two places.

[0018] (3) The present invention realizes that the pressure relief hole is blocked synchronously in the closed state and opened synchronously in the open state by linking the opening and closing of the pressure relief hole with the opening and closing of the lock. No additional control by the operator is required, which simplifies the opening and closing steps of the container. In addition, by respectively providing a first locator and a second locator on the cover body and the lock, an anchor point is formed to limit the influence of the tolerance and deformation of the lock on the relative position of the plug and the pressure relief hole during the closing process, thereby greatly improving the matching accuracy of the plug and the pressure relief hole and ensuring the sealing effect.

[0019] (4) The lock buckle of the present invention can be used as a handle when opening the cover, making it convenient for the operator to lift the cover. At the same time, the lock buckle forming the handle can also be used as a support for the cover after the cover is turned over, so that the cover can be suspended on the table, avoiding the operator's hand from contacting the contents attached to the inner wall of the cover when closing the cover again.

[0020] (5) The present invention provides a limit block protruding downward from the bottom end of the edge of the cover body, thereby limiting the downward travel of the buckled end of the cover body, reducing excessive squeezing of the sealing ring, and thus reducing the degree of warping of the buckled end of the cover body.

[0021] (6) The cover body structure is composed of different materials, which not only ensures the rigidity of the first component in the middle of the cover body to resist the warping of the two ends of the cover body, but also makes it easier to process the pressure relief hole, the rotating shaft for carrying the lock, and the sealing groove for accommodating the sealing ring in the second component at the edge of the cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 This is a structural diagram of the double-buckle sealed container of the present invention; Figure 2 It is a side view of a four-button container in the prior art described in the present invention; Figure 3It is a side view of the double-buckle sealed container of the present invention; Figure 4 This is a schematic diagram of the cover opening state of the present invention; Figure 5 This is a schematic diagram of the force acting on the lock buckle of the present invention; Figure 6 This is a schematic diagram of the handle structure of the present invention; Figure 7 This is a schematic diagram of the support structure of the present invention; Figure 8 This is a schematic diagram of the structure of the limiting protrusion of the present invention; Fig. 9 This is a schematic diagram of buckleless end warping according to the present invention; Among them: 1. cover body, 11. first component, 12. second component, 13. limiting protrusion, 2. box body, 3. lock, 31. connecting section, 32. buckling section, 33. rotating shaft, 34. buckling structure, 41. pressure relief hole, 42. plug, 51. first positioner, 52. second positioner. DETAILED DESCRIPTION

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0025] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] The present invention is further described in detail below in conjunction with specific embodiments: like Figure 1 As shown, a double-buckle sealed container includes a cover 1, a box body 2, a lock 3, and an O-ring. One end of the lock 3 is rotatably connected to the cover 1, and the other end can be buckled with the box body 2. During the buckling action, a traction force is applied to the cover 1 to move toward the box body 2, so that the cover 1 is pressed against the box body 2 and the O-ring abutting against the cover 1 and the box body 2 is compressed in the vertical direction to form a sealing surface. When the lock 3 is in contact with the box body 2, the O-ring is elastically reset and lifts the cover 1 a certain distance, so that the cover 1 is out of contact with the box body 2.

[0027] In the sealed containers in the prior art, especially the sealed containers with rectangular structures, four lock buckles 3 are often arranged around the circumference of the cover body 1. When closing the cover body 1, all four lock buckles 3 need to be fastened, and at least three lock buckles 3 need to be opened to complete the opening of the cover body 1.

[0028] In the present embodiment, only two lock buckles 3 are provided on both sides of the cover body 1, which can reduce the workload by half when buckling the cover body 1, and only one lock buckle 3 needs to be opened to remove the cover body 1 from the box body 2, reducing the workload by three times. The combination of the two makes the opening and closing of the cover body 1 more convenient.

[0029] However, directly reducing the number of locks 3 of the sealed container in the prior art will result in a poor sealing effect. Figure 2 As shown, in the prior art, the rotating connection ends of the lock buckle 3 and the cover body 1 of the sealed container are almost all located at the edge of the cover body 1. This design can simplify the structure of the lock buckle 3 and allow the lock buckle 3 to be integrally formed with the cover body 1 in a low-cost manner using a living hinge (if the living hinge is not located at the edge of the injection molded part, it is difficult to design a corresponding mold required for manufacturing such an injection molded part).

[0030] In this design, the force generated by the engagement of the lock buckle 3 and the box body 2 will cause the rotating connection end of the lock buckle 3 on the cover body 1 to be subjected to a downward pulling force FL, and the position where the cover body 1 and the box body 2 abut (i.e., the sealing surface) must be located on the inner side of the edge, and exert an upward supporting force FN on the cover body 1. Under the combined effect of the pulling force FL and the supporting force FN, the cover body 1 will generate an upward torque T on the center line along the width direction of the lock buckle 3, and thus cause the cover body 1 to arch along the center line, so that the two ends of the cover body 1 without the lock buckle 3 are not tightly sealed. This is also the reason why the sealed containers in the prior art mostly adopt a four-buckle structure.

[0031] In order to solve the problem of poor sealing without buckle ends without increasing the number of lock buckles 3, the present application sets the rotating connection end of the buckle 3 on the cover body 1 at a position close to the middle of the cover body 1. Further, the projection of the rotating connection end of the lock buckle 3 on the cover body 1 on the plane where the sealing surface is located is placed in the closed area formed by the sealing surface.

[0032] like Figure 3 As shown, such a design changes the force lever of the cover body 1 in the buckled state, places the downward pulling force FL between the supporting force FN provided by the closed sealing surface, and converts the arch of the cover body 1 into a concave part of the cover body 1. This concave part can be balanced by the supporting force FN provided by the sealing surface, and thus will not affect the sealing effect.

[0033] Specifically, Figure 4 As shown, the lock 3 is composed of a connecting section 31 and a buckling section 32. The connecting section 31 is rotatably connected to the cover body 1 near the middle by a rotating shaft 33, and the buckling section 32 is provided with a buckling structure 34 for buckling with the box body 2. In a preferred embodiment of the present application, the buckling section 32 and the connecting section 31 are integrally formed and bent to form a substantially mutually perpendicular shape. In this way, when the buckling section 32 is buckled with the box body 2, the connecting section 31 can fit the top surface of the cover body 1.

[0034] On the one hand, the fit with the top surface of the cover body 1 can give the container a simple appearance. More importantly, it can cooperate with the pressure relief hole 41 opened on the cover body 1 to achieve synchronization between the opening and closing of the pressure relief hole 41 and the opening and closing of the cover body 1.

[0035] When the sealed container in the prior art is opened, negative pressure is easily generated due to the change in the volume of the sealed chamber or the change in the temperature of the contents, and the negative pressure causes the lid 1, which is released from the buckle, to still be unable to be easily separated from the box body 2. In this regard, a manual opening or closing pressure relief hole 41 is generally provided on the lid 1 to achieve pressure balance inside and outside the container or seal the internal chamber, which undoubtedly makes the already complicated opening and closing steps of the traditional sealed container even more complicated.

[0036] Therefore, the present application sets the pressure relief hole 41 in linkage with the connecting section 31 of the lock buckle 3, so that the pressure relief hole 41 is blocked synchronously when the lock buckle 3 is fastened; and the pressure relief hole 41 is opened synchronously when the lock buckle 3 is opened.

[0037] Specifically, the pressure relief hole 41 is arranged on the cover body 1 at a position corresponding to the connecting section 31. When the connecting section 31 is in the buckled state, a plug 42 is fixed on the bottom surface corresponding to the pressure relief hole 41. The plug 42 is fixed to the connecting section 31, so it can move synchronously with the connecting section 31. When the lock buckle 3 is turned around the rotating shaft 33 and enters the buckled state, the plug 42 can also be synchronously inserted into the pressure relief hole 41 to block it. Similarly, after the lock buckle 3 is opened, the plug 42 can also be synchronously removed from the pressure relief hole 41. No additional control by the operator is required.

[0038] But in practical applications, Figure 5 As shown, the tension FL on the lock 3 in the buckled state is not vertically downward as ideal, but because of the manufacturing tolerance of the cover body 1, the lock 3 or the box body 2, and the certain elasticity of the lock 3 itself, the tension FL has a component FL1 along the horizontal direction and outward. The generation of the component FL1 will result in that each part of the connecting section 31 and the cover body 1 cannot be guaranteed to be in the same relative position during each buckling process, and the plug 42 in this application is fixed on the connecting section 31. That is, the plug 42 and the pressure relief hole 41 that can match in the ideal state may not be effectively aligned with the plug 42 and the pressure relief hole 41 in the actual buckling due to the deformation of the lock 3 caused by the component FL1, thereby affecting the sealing effect.

[0039] To solve this problem, Figure 4 As shown, in the present application, first positioners 51 are provided on the left and right sides of the cover body 1 adjacent to the pressure relief hole 41 , and second positioners 52 are provided on the connection end to cooperate with the first positioners 51 .

[0040] When the lock buckle 3 is buckled with the box body 2, the first locator 51 can be matched with the second locator 52 before the plug 42 is completely inserted into the pressure relief hole 41. The first locator 51 and the second locator 52 after matching will form an anchor point, which limits the tolerance and deformation range that can affect the relative position of the plug 42 and the pressure relief hole 41 to the area between the anchor point and the rotating connection end of the lock buckle 3, that is, the influence of the part from the anchor point to the buckle 3 and the box body 2 is excluded. Thereby, the matching accuracy of the plug 42 and the pressure relief hole 41 is greatly improved.

[0041] Furthermore, because the distance between the rotation connection end on the cover body 1 and the buckle end on the box body 2 is long and there is no fixed point with the cover body 1 or the box body 2, the lock 3 is easily disturbed by external forces, thereby causing the plug 42 and the pressure relief hole 41 to deviate and cause air leakage. The anchor points generated by the first locator 51 and the second locator 52 can also resist the influence of the external force on the plug 42.

[0042] Specifically, in this embodiment, the first locator 51 and the second locator 52 are respectively configured as a locating groove and a locating block integrally formed with the corresponding cover body 1 and the lock buckle 3. Based on the same concept, the first locator 51 and the second locator 52 can also be configured as a matching buckle structure, or other structures that can limit the horizontal direction.

[0043] After achieving the synchronous opening and closing effect of the pressure relief hole 41, the lock buckle 3 of the present application can achieve its other purpose, that is, as a handle when opening the cover.

[0044] Because the connecting section 31 and the buckling section 32 are perpendicular to each other, Figure 6 As shown, after the lock buckle 3 flips outward around the rotating shaft 33 during the cover opening action, the outer walls of the connecting section 31 and the buckling section 32 at the bending part can abut against the top surface of the cover body 1, and the abutting point will constitute a fulcrum, so that the buckling sections 32 on the two lock buckles 3 can be constructed as handles, and the operator can lift the cover body 1 by pressing the two buckling structures 34 with two fingers at the same time.

[0045] And, if Figure 7 As shown, the lock 3 forming the handle can also serve as a bracket of the cover body 1 after the cover body 1 is turned over, and the cover body 1 can be suspended on the table, so that the operator can reach under the cover body 1 and pick up the cover body 1 for re-closing next time without touching the inner wall of the cover body 1, thereby avoiding the operator's hands from contacting the contents attached to the inner wall of the cover body 1 (such as food soup).

[0046] For the double buckle structure of the present application, Fig. 9 As shown, the cover 1 not only faces the problem of midline arching, but also because both lock buckles 3 are buckled with the middle of the cover 1, the two ends of the cover 1 without buckles are easily warped due to the leverage effect generated by the elastic force FT of the O-ring. Compared with the midline arching, this degree of warping is relatively mild, but a solution is still needed to make the container have better sealing performance.

[0047] In this regard, the present application, in a preferred embodiment, combines Figure 4 and Figure 8 As shown, a limiting protrusion 13 is provided at the bottom end of the edge of the cover body 1, which is protruding downward. The limiting protrusion 13 is in the same vertical plane formed by the rotating connection end of the lock buckle 3 and the cover body 1 and the buckling end of the lock buckle 3 and the box body 2. When the cover body 1 compresses the O-ring during the buckling action and moves toward the box body 2, the length of the limiting protrusion 13 is constructed to be able to abut against the top of the box body 2 when the O-ring is compressed and completely abuts against the cover body 1, preventing the cover body 1 from moving further, thereby limiting the downward stroke of the buckled end of the cover body 1 and reducing excessive squeezing of the O-ring. When the stroke at this point is limited, under the action of the lever, the degree of upward tilt of the two buckleless ends of the cover body 1 will be reduced accordingly.

[0048] In addition, combined Figure 1 and Figure 4 As shown, the cover body 1 in the present application can be composed of two structures made of different materials, including a first component 11 arranged at the center and a second component 12 arranged around the first component 11. The first component 11 is made of a material having a greater elastic modulus than the second component 12, and the lock buckle 3, the pressure relief hole 41, the first locator 51, and the sealing groove for accommodating the sealing ring are all arranged on the second component 12.

[0049] In this embodiment, the first component 11 is made of glass, so that the middle part of the entire cover body 1 has rigidity, and the two buckleless ends of the cover body 1 are less likely to warp up, and the glass structure makes it easy for the operator to observe the state of the contents without opening the cover. In this embodiment, the second component 12 is formed on the peripheral side of the first component 11 by injection molding, and is made of plastic or silicone material, which has better processing properties than glass, thereby reducing the processing cost of the lock 3, pressure relief hole 41, first locator 51, and sealing groove accommodating the sealing ring thereon. In addition, in other embodiments of the present application, the first component 11 can also be made of a material having similar characteristics to glass, that is, taking into account both rigidity and transparent material, and the second component 12 can also be made of other materials that can be formed by injection molding and have good processing properties.

[0050] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A double-buckle sealed container, comprising a cover body (1), a box body (2), and a pair of lock buckles (3) rotatably connected to only two sides of the cover body (1), characterized in that: During the buckling action, the lock buckle (3) pulls the cover body (1) toward the box body (2), and through this movement, the cover body (1) is pressed against the box body (2) and a sealing surface is formed between the cover body (1) and the box body (2); The projection of the rotating connection end of the lock buckle (3) on the cover body (1) on the plane where the sealing surface is located is placed within the closed area formed by the sealing surface.

2. The double-buckle sealed container according to claim 1, characterized in that: The lock buckle (3) comprises a connecting section (31) and a buckling section (32); One end of the connecting section (31) is rotatably connected to the cover body (1), and the other end is fixed to the buckling section (32); The buckling section (32) is provided with a buckling structure (34) for buckling with the box body (2), and forms an angle with the connecting section (31), wherein the connecting section (31) in the buckled state can be synchronously fitted with the cover body (1).

3. The double-buckle sealed container according to claim 2, characterized in that: A pressure relief hole (41) is provided, the pressure relief hole (41) being arranged at a position on the cover body (1) corresponding to the connecting section (31), the connecting section (31) being provided with a plug (42) in cooperation with the pressure relief hole (41); the plug (42) being configured to block the pressure relief hole (41) in a buckled state, and to move out of the pressure relief hole (41) in response to the separation of the lock buckle (3) and the box body (2).

4. The double-buckle sealed container according to claim 3, characterized in that: A first locator (51) is provided adjacent to the pressure relief hole (41), and a second locator (52) is provided in the connection section (31) in cooperation with the locating groove; the first locator (51) cooperates with the second locator (52) in a buckled state to move the plug (42) radially along the pressure relief hole (41).

5. The double-buckle sealed container according to claim 1, characterized in that: A limiting protrusion (13) is provided at one end of the cover body (1) close to the box body (2), and the rotational connection end of the limiting protrusion (13) and the lock buckle (3) and the buckling end of the lock buckle (3) and the box body (2) are located in the same vertical plane.

6. The double-buckle sealed container according to claim 2 or 5, characterized in that: The cover body (1) comprises a first component (11) arranged at a central position and a second component (12) arranged around the first component (11); the first component (11) has a higher elastic modulus than the second component (12).

7. The double-buckle sealed container according to claim 6, characterized in that: The first component (11) is configured to be glass, and the second component (12) is configured to be plastic or silicone.

8. A double-buckle sealed container, comprising a cover body (1), a box body (2), and a pair of lock buckles (3) rotatably connected to only two sides of the cover body (1), characterized in that: A sealing ring is provided between the cover body (1) and the box body (2), and the sealing ring is configured such that: when the buckle (3) is buckled with the box body (2), the sealing ring is compressed and forms a sealing surface between the cover body (1) and the box body (2); and in response to the separation of the buckle (3) and the box body (2), the cover body (1) and the box body (2) are driven to separate by elastic reset; The projection of the rotating connection end of the lock buckle (3) on the cover body (1) on the plane where the sealing surface is located is placed within the closed area formed by the sealing surface.

9. The double-buckle sealed container according to claim 8, characterized in that: The cross section of the lock buckle (3) parallel to its own width direction is set to an L-shaped structure. When the cover is opened, the outer wall of the lock buckle (3) abuts against the top of the cover body (1) to form a fulcrum, so that the part of the lock buckle (3) away from the rotation connection end with the cover body (1) can be constructed as a handle.

10. The double-buckle sealed container according to claim 9, characterized in that: A pressure relief hole (41) is provided, the pressure relief hole (41) being arranged at a position on the cover body (1) corresponding to the lock buckle (3), the lock buckle (3) being provided with a plug (42) in cooperation with the pressure relief hole (41); the plug (42) being configured to block the pressure relief hole (41) in a buckled state, and to move out of the pressure relief hole (41) in response to the separation of the lock buckle (3) and the box body (2).

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