Single-action lid-opening food storage container
The single-action lid-opening mechanism with a handle balances air pressure and uses a lever principle to facilitate easy, single-handed operation, addressing the inconvenience of two-handed opening in existing containers.
Patent Information
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- NINGBO LONGWELL BABY & BEAUTY PRODUCTS CO LTD
- Filing Date
- 2026-01-16
- Publication Date
- 2026-05-21
AI Technical Summary
Existing food storage containers require two hands to open due to pressure differences causing difficulty, especially when hot food is placed inside, and one-handed solutions are not sufficiently convenient.
A single-action lid-opening mechanism with a handle that rotates to balance air pressure and utilize a lever principle, allowing easy one-handed operation by pivoting the lid with a wide, arch-shaped handle.
Enables easy, single-handed opening and closing of the lid, reducing effort and improving convenience for individuals with limited hand strength or disabilities, while maintaining a sealed state.
Smart Images

Figure US20260138793A1-D00000_ABST
Abstract
Description
[0001] This application claims priority to Chinese Patent Application No. 202521856896.3, filed on August 29, 2025, with Chinese Patent Office. The entire contents of the aforementioned application are incorporated herein by reference.TECHNICAL FIELD
[0002] The present disclosure relates to the field of food storage containers, and in particular, to a single-action lid-opening food storage container.BACKGROUND
[0003] At present, food storage containers are generally designed to be airtight, preventing external air from entering and contacting the food, accelerating food spoilage. Existing food storage containers typically use a snap-fit structure, which applies pressure to the sealing member on the lid, such that the sealing member contacts an inner side surface of the container body to achieve an almost zero gap. However, such a method for closing the lid creates pressure, forcing gas to be discharged and causing the internal pressure to be lower than the external pressure. Alternatively, when hot food is placed inside, during heat dissipation of the food, the air pressure inside the container decreases due to temperature reduction and slowed molecular motion. As a result, under the influence of the pressure difference, the top lid is difficult to open and requires relatively great effort, and generally both hands are needed to respectively hold the container body and the top lid to separate them, making lid opening inconvenient. Although a small number of food storage containers can be opened with one hand, their opening manner is not sufficiently convenient, and the opening action is limited by the length of the user’s palm.SUMMARY
[0004] To address at least one of the aforementioned problems, the present disclosure provides a single-action lid-opening food storage container, comprising a container body, a top lid, and a handle. The top lid and the container body are detachably connected. Two ends of the handle are respectively rotatably connected to two sides of the top lid, and each of the
[0005] two ends of the handle is provided with a pushing part, which is adapted to rotationally abut against the container body. The container body has a storage chamber for placing items, and the top lid is provided with an air aperture communicating with the storage chamber. The handle is provided with a sealing part, and the air aperture is located on a rotational path of the sealing part, such that the sealing part is capable of blocking the air aperture to form a sealed state.
[0006] When the handle is rotated to move the sealing part away from the air aperture, the storage chamber communicates with the external air through the air aperture, thereby balancing the air pressure. The handle pushes against the container body through the pushing parts, causing the top lid to tilt upward.
[0007] Optionally, the handle is arch-shaped, with a rotating shaft disposed at each of the two ends, and two sides of the top lid are each provided with a connecting hole. The rotating shafts are inserted into the connecting holes and are rotatably connected to the connecting holes.
[0008] Optionally, the handle includes an open position and a closed position. When the handle is in the open position, a minimum distance between an axis of the rotating shaft and the container body is greater than a minimum distance between the axis of the rotating shaft and the container body when the handle is in the closed position.
[0009] Optionally, when in the sealed state, a distance between the axis of the rotating shaft and a lower side of the handle is less than a distance between the axis of the rotating shaft and an upper side of the handle.
[0010] Optionally, the sealing part includes a connecting shaft and a sealing plug. The connecting shaft is fixed to the handle, and the sealing plug is sleeved on the connecting shaft. A limiting block is arranged on the connecting shaft, and an inclined first guiding surface is formed at the bottom of the limiting block. A limiting part is provided on an inner wall of the sealing plug, and a second guiding surface is formed on the limiting part. The first guiding surface and the second guiding surface are slidably connected to guide engagement between the limiting block and the limiting part.
[0011] Optionally, a mounting cavity configured to accommodate the handle is provided at an edge of the top lid, and the handle is rotatably connected to the mounting cavity. When the sealing part blocks the air aperture, the handle is received in the mounting cavity.
[0012] Optionally, a limiting step is provided on the handle, which comprises a first step and a second step. The first step is adapted to abut against an edge of the container body, and the sealing part is provided on the second step. A third step is provided within the mounting cavity, and the air aperture is provided on the third step. A height difference between the first step and the second step is adapted to engage the third step. When the sealing part blocks the air aperture, a lower end face of the second step abuts against an upper end face of the third step.
[0013] Optionally, the wall of the air aperture is provided with an inwardly protruding clamping part, which is configured to clamp the sealing part.
[0014] Optionally, the handle is provided with an inclined contact surface, which facilitates engagement by a finger to pivot the handle and drive its rotation.
[0015] Optionally, the handle is provided with a gripping opening adapted for a human hand to pass through. The top lid can be lifted by the handle after the human hand passes through the gripping opening.
[0016] Optionally, the pushing parts are adapted to rotationally abut against an upper end wall of the container body.
[0017] Optionally, the storage container further includes a sealing ring, and a clamping groove for receiving the sealing ring is circumferentially provided on a peripheral wall of the top lid. An edge of the sealing ring protrudes from the clamping groove and is slidably connected to an inner wall of the container body. When the top lid moves downward with the sealing ring, the edge of the sealing ring is deformed and abuts against the inner wall of the container body to maintain a sealed state. A cavity is provided above the wall of the clamping groove, the cavity providing space for deformation of the edge of the sealing ring and / or for rotation of the pushing part.
[0018] Compared with the inconvenience of two-handed lid opening in the existing technologies, the present disclosure provides a handle equipped with a sealing part and a pushing part. The sealing part addresses sealing and pressure-release issues, while, by utilizing the lever principle, the pushing parts lift the top lid, making lid opening easier and more labor-saving. The lid can be opened or closed with a single action, improving efficiency and allowing easy one-handed operation. For individuals who have difficulty using both hands—such as the elderly with insufficient hand strength or disabled persons with limited single-hand operation—the wide-handle, lever design increases the force-applied area, enabling effort-saving lid opening and closing.
[0019] When the food storage container is placed on a plane surface, the thumb engages the middle portion of the handle while the four fingers press down on the top lid. Rotating the thumb causes the handle to pivot towards the palm, eventually lifting the handle. During this process, both the air aperture and the top lid are opened. The handle naturally fits into the palm, and when the fingers close around the handle, the top lid can be lifted. Meanwhile, the top lid separates from the container under its own weight, achieving single-hand lid opening. The entire process is very smooth, whereas other food storage containers in existing technologies, even those operable with one hand, often experience jamming. Additionally, two lever fulcrums are formed between the two sides of the handle and the top lid, which, compared to a single lever fulcrum in the existing technologies, further reduces the required effort.
[0020] For other food storage containers in the existing technology that employ other single-handed outward-rotating opening mechanisms, the distance the lever moves from one end of the hand to the other is limited by the length of the hand. In contrast, the present disclosure adopts a handle-type design, where the lever has a rotation radius from the pad of the thumb to the tip of the middle finger when opening the lid with a single hand. After gripping the handle, the rotation distance is no longer limited by the length of the palm. According to the principle of work, under the same applied force, the greater the distance over which an object moves, the more work is done.BRIEF DESCRIPTION OF THE DRAWINGS
[0021] FIG. 1 is a structural diagram of the single-action lid-opening food storage container according to an embodiment of the present disclosure;
[0022] FIG. 2 is a cross-sectional view of the single-action lid-opening food storage container according to an embodiment of the present disclosure;
[0023] FIG. 3 is an enlarged view of part A shown in FIG. 2;
[0024] FIG. 4 is an exploded view of the single-action lid-opening food storage container according to an embodiment of the present disclosure;
[0025] FIG. 5 is a structural diagram of the handle according to an embodiment of the present disclosure; and
[0026] FIG. 6 is a structural diagram of the top lid according to an embodiment of the present disclosure.
[0027] Reference numerals are as follows:
[0028] 1, container body; 11, storage chamber; 2, top lid; 21, air aperture; 211, clamping part; 22, third step; 23, connecting hole; 24, clamping groove; 25, cavity; 3, handle; 31, pushing part; 32, connecting shaft; 321, limiting block; 322, first guiding surface; 33, sealing plug; 331, limiting part; 332, second guiding surface; 34, rotating shaft; 35, reference surface; 36, limiting step; 361, first step; 362, second step;37, contact surface; 38, gripping opening; 4, sealing ring.DETAILED DESCRIPTION OF EMBODIMENTS
[0029] To make the above-mentioned objectives, features and advantages of the present disclosure more apparent and understandable, the specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.
[0030] A coordinate system XYZ is provided in the drawings of the embodiments of the present utility model, in which the positive direction of the X-axis represents left, the negative direction of the X-axis represents right, the positive direction of the Y-axis represents front, the negative direction of the Y-axis represents rear, the positive direction of the Z-axis represents upward, and the negative direction of the Z-axis represents downward.
[0031] The present disclosure provides a single-action lid-opening food storage container, as shown in FIGS. 1 to 6. The food storage container includes a container body 1, a top lid 2, and a handle 3. The top lid 2 and the container body 1 are detachably connected. Two ends of the handle 3 are respectively rotatably connected to two sides of the top lid 2. Each end of the handle 3 is provided with a pushing part 31, which is adapted to rotationally abut against the upper end wall of the container body 1. The container body 1 is provided with a storage chamber 11 for placing items. The top lid 2 is provided with an air aperture 21 communicating with the storage chamber 11. The handle 3 is provided with a sealing part, and the air aperture 21 is located on the rotational path of the sealing part. The sealing part is adapted to be inserted into the air aperture 21 to seal the air aperture 21 and form a sealed state.
[0032] When the handle 3 is rotated so that the sealing part moves away from the air aperture 21, the storage chamber 11 communicates with the external air through the air aperture 21, thereby balancing the air pressure. The handle 3 pushes against the container body 1 through the pushing parts 31, so as to drive the top lid 2 to tilt upward, facilitating lid opening.
[0033] As shown in FIGS. 1, 3, and 5, in this embodiment, the handle 3 is a square-arch shape and integrally formed. The handle 3 includes a gripping part and connecting parts, with two connecting parts respectively connected to two ends of the gripping part. The connecting parts are rotatably connected to the top lid. The gripping part is adapted for holding by a human hand, and its width is greater than the width of the connecting parts. This wide-handle design not only facilitates gripping but also increases the force-applied area, enabling effort-saving lid opening and closing. The pushing parts 31 form the bottom corners at the ends of the handle 3. When the handle 3 is rotated upward, the bottom corners abut against the container body 1 under the lever principle and pries the top lid 2, increasing the gap between the top lid 2 and the container body 1 to facilitate lid opening. A forward rotation is either a clockwise or a counterclockwise rotation, and a reverse rotation is in the opposite direction to the forward rotation.
[0034] After placing the food in the storage chamber 11 and pressing the top lid 2 onto the container body 1, the handle 3 can be rotated clockwise so that the sealing part rotates and is inserted into the air aperture 21, thereby blocking the air aperture 21 to form a sealed state. This prevents external air from entering the storage chamber 11 through the air aperture 21, which would accelerate the spoilage of the food. Furthermore, when the handle 3 is rotated to a position nearly parallel to the top lid 2, the force applied by the hand to the handle 3 is transmitted to the top lid 2 and the container body 1. This downward pressing force can further ensure that the top lid 2 and the container body 1 are properly closed, enhancing the sealing effect between the top lid 2 and the container body 1.
[0035] When it is necessary to open the lid, the handle 3 is rotated in the reverse direction, causing the seal to be withdrawn from the air aperture 21, so that the storage chamber 11 is allowed to communicate with the external environment, balancing the air pressure and avoiding interference from pressure difference, thereby making the top lid 2 easier to open. At the same time, the user can follow the direction of rotation to directly lift the handle 3 and open the top lid 2 in a single action, enabling easy one-handed operation.
[0036] After the handle 3 is lifted from the top lid 2, the user’s hand can directly reach through the gripping opening 38 to hold the gripping part and lift the top lid 2 directly. A specific operation is as follows: the food storage container is placed on a table, the thumb engages the gripping part while the four fingers press the top lid 2, and the thumb is rotated to rotate the handle 3 toward the palm until the handle 3 is lifted. During this process, both the air aperture 21 and the top lid 2 are opened. The handle 3 naturally fits the palm, and when the fingers close around the handle 3, the handle 3 can be lifted. With the assistance of the weight of the container body 1, the top lid 2 separates from the container body 1, achieving single-handed lid opening. The entire operation is very smooth, whereas other food storage containers in existing technologies often experience jamming even with single-handed operation. In addition, two lever fulcrums are formed between the two connecting parts of the handle 3 and the top lid 2, which, compared to a single lever fulcrum in the existing technologies, further reduces the required effort.
[0037] For other food storage containers in the existing technologies that employ other single-handed outward-rotating opening mechanisms, the distance the force-applied end of the lever moves from one end of the hand to the other is limited by the length of the hand. In contrast, the present disclosure adopts a handle-type design, where the lever has a rotation radius from the pad of the thumb to the tip of the middle finger when opening the lid with a single hand. After gripping the handle, the rotation distance is no longer limited by the length of the palm. According to the principle of work, under the same applied force, the greater the distance over which an object moves, the more work is done.
[0038] Compared with the inconvenience of two-handed lid opening in the existing technologies, the present disclosure provides a handle 3 provided with a sealing part and pushing parts 31. The sealing part addresses sealing and pressure-release issues, while, by utilizing the lever principle, the pushing parts 31 lift the top lid 2, making lid opening easier and more labor-saving. The lid can be opened or closed in a single action, improving efficiency and allowing easy one-handed operation. For individuals who have difficulty using both hands—such as the elderly with insufficient hand strength or disabled persons with limited single-hand operation—the wide-handle, lever-type design of the handle 3 increases the force-applied area, enabling effort-saving lid opening and closing.
[0039] As shown in FIGS. 3 and 5, optionally, the sealing part includes a connecting shaft 32 and a sealing plug 33, the connecting shaft 32 is fixed on the handle 3, and the sealing plug 33 is sleeved on the connecting shaft 32.
[0040] In this embodiment, the axis of the air aperture 21 is vertically oriented. The sealing plug 33 is made of silicone and is elastic. A chamfer is formed at the end of the sealing plug 33 close to the air aperture 21 to ensure the sealed state after the sealing plug 33 is inserted into the air aperture 21.
[0041] As shown in FIG. 3, optionally, the connecting shaft 32 is provided with a limiting block 321, and the bottom of the limiting block 321 is provided with an inclined first guiding surface 322. The inner wall of the sealing plug 33 is provided with a limiting part 331, and a second guiding surface 332 is provided on the limiting part 331. The first guiding surface 322 and the second guiding surface 332 are slidably connected to guide engagement between the limiting block 321 and the limiting part 331.
[0042] In this embodiment, when mounting the sealing plug 33, the connecting shaft 32 is pressed downward into the sealing plug 33. When the limiting block 321 slides beneath the limiting part 331, a slight vibration occurs between the limiting block 321 and the limiting part 331, providing a tactile indication that the mounting is in place. Once mounted, the limiting part 331 is positioned above the limiting block 321, ensuring stability of the connection between the sealing plug 33 and the connecting shaft 32 and avoiding detachment.
[0043] As shown in FIGS. 5 and 6, optionally, the handle 3 is arch-shaped, and two ends of the handle 3 are respectively provided with a rotating shaft 34. Connecting holes 23 are respectively provided on two sides of the top lid 2. The rotating shafts 34 are inserted into the connecting holes 23 and are rotatably connected to the connecting holes 23.
[0044] In this embodiment, the number of the handle 3 is one, and the axis of the rotating shafts 34 is oriented in the front-rear direction. In other embodiments, the axis of the rotating shafts 34 may be oriented in the left-right direction. Furthermore, the rotating shafts 34 can be positioned near the middle portion of the top lid 2, so that after rotating the handle 3, the top lid can be easily lifted using the handle 3. In other embodiments, two handles 3
[0045] may be provided, rotatably mounted on the left and right sides of the top lid 2, respectively. The user can rotate the two handles 3 individually with one hand and then lift both handles 3 simultaneously to drive the top lid 2 to separate from the container body 1.
[0046] As shown in FIG. 5, optionally, the handle 3 includes an open position and a closed position. When the handle 3 is in the open position, the minimum distance between the axis of the rotating shafts 34 and the container body 1 is greater than the minimum distance between the axis of the rotating shafts 34 and the container body 1 when the handle 3 is in the closed position. With this configuration, when the handle 3 is rotated around its axis, the pushing parts 31 are able to rotationally abut against the container body 1 and pry the top lid 2 under the lever principle.
[0047] As shown in FIG. 5, optionally, when in a sealed state, the distance from the axis of the rotating shafts 34 to a lower side of the handle 3 is less than the distance from the axis of the rotating shafts 34 to the upper side of the handle 3. This arrangement brings the rotating shaft 34 closer to the container body 1, resulting in a greater height difference between the axis of the rotating shafts 34 and the upper end wall of the container body 1 when the lid is closed and open.
[0048] Optionally, the edge of the top lid 2 is provided with a mounting cavity configured to accommodate the handle 3, and the handle 3 and the mounting cavity are rotatably connected. When the sealing part blocks the air aperture 21, the handle 3 is received in the mounting cavity.
[0049] As shown in FIG. 1, in this embodiment, the top lid 2 is approximately a cuboid with rounded corners to prevent sharp corners from scratching the user. The handle 3 is located at any corner of the top lid 2. The mounting cavity is recessed at one end of the top lid 2, and the handle 3 serves as one side of the top lid 2. The upper surface of the handle 3 is flush with or nearly flush with the upper surface of the top lid 2. This design is not only aesthetically pleasing but also reduces the space occupied by the handle 3, allowing the handle 3 and the top lid 2 to integrate neatly.
[0050] Optionally, the handle 3 is provided with a limiting step 36, which includes a first step 361 and a second step 362. The first step 361 is adapted to abut against the edge of the container body 1. The sealing part is arranged on the second step 362. The mounting cavity is provided with a third step 22, and the air aperture 21 is provided on the third step 22. The height difference between the first step 361 and the second step 362 is adapted to engage the third step 22. When the sealing part blocks the air aperture 21, the lower end face of the second step 362 abuts against the upper end face of the third step 22.
[0051] As shown in FIGS. 5 and 6, in this embodiment, the limiting step 36 does not hinder the upward rotation of the handle 3, but is configured to limit the degree of downward rotation of the handle 3. When the handle 3 is rotated downward to block the air aperture 21, the limiting step 36 and the third step 22 cooperate to transmit the pressing force applied by the user to the top lid 2. This indirectly presses the top lid 2 onto the container body 1, ensuring a better sealing effect between the top lid 2 and the container body 1.
[0052] As shown in FIG. 3, optionally, the wall of the air aperture 21 is provided with an inwardly protruding clamping part 211, which is configured to clamp the sealing part to improve the sealing effect. The upper end face of the clamping part 211 is inclined to guide the sealing part downward into the air aperture 21.
[0053] As shown in FIGS. 3 and 5, optionally, the handle 3 is provided with an inclined contact surface 37, which facilitates the fingers to engage the handle 3 and rotate it. The inclined contact surface 37 contacts the fingertip, thereby facilitating the application of force.
[0054] As shown in FIGS. 3 and 4, optionally, the single-action lid-opening food storage container further includes a sealing ring 4. A clamping groove 24 for mounting the sealing ring 4 is circumferentially formed around the periphery of the top lid 2. The edge of the sealing ring 4 protrudes from the clamping groove 24 and is slidably connected to the inner wall of the container body 1. When the top lid 2 moves downward with the sealing ring 4, the edge of the sealing ring 4 is deformed and abuts against the inner wall of the container body 1 to maintain a sealed state. A cavity 25 is provided above the wall of the clamping groove 24. The cavity 25 provides space for the deformation of the edge of the sealing ring 4 and / or for the rotation of the pushing parts 31. When the distance between the ends of the handle 3 is sufficiently wide (i.e., exceeding the outer edge of the clamping groove 24), this rotation space is not required; otherwise, when the distance between the ends of the handle is insufficient (i.e., the distance does not exceed the outer edge of the clamping groove) and the height is insufficient, this rotation space is required.
[0055] In this embodiment, the shapes of the container body 1, the top lid 2, and the sealing ring 4 are compatible. The sealing ring 4 is made of silicone, preferably food-grade silicone. The clamping groove 24 clamps the sealing ring 4 from the upper-lower direction. The clamping groove 2 forms an opening on its outer periphery, allowing the edge of the sealing ring 4 to extend out of the clamping groove 24. When the top lid 2 is pressed down, the edge of the sealing ring 4 tilts upward and rubs against the inner wall of the container body 1. At this point, the edge of the sealing ring 4 is located in the cavity 25. The cavity 25 provides a vertical space for the sealing ring 4 to move downward. During the downward movement, the sealing ring 4 compresses the air inside the container body 1, causing part of the air to be discharged from the gap between the sealing ring 4 and the container body 1 until a sealed state is formed. When the top lid 2 drives the sealing ring 4 upward to open the lid, the edge of the sealing ring 4 flips downward. The cavity 25 provides a space for the deformation and upward movement of the sealing ring 4, facilitating lid opening, and also allows space for the rotation of the pushing parts 31.
Claims
1. A single-action lid-opening food storage container, comprising a container body (1), a top lid (2) and a handle (3), wherein the top lid (2) and the container body (1) are detachably connected, two ends of the handle (3) are respectively rotatably connected to two sides of the top lid (2), the two ends of the handle (3) are respectively provided with a pushing part (31) configured to rotationally abut against the container body (1), the container body (1) is provided with a storage chamber (11) for placing items, the top lid (2) is provided with an air aperture (21) communicating with the storage chamber (11), the handle (3) is provided with a sealing part, the air aperture (21) is located on a rotational path of the sealing part, and the sealing part is adapted to block the air aperture (21) so that the air aperture (21) forms a sealed state;when the handle (3) is rotated so that the sealing part moves away from the air aperture (21), the storage chamber (11) communicates with external air through the air aperture (21) to balance the air pressure, and the handle (3) pushes against the container body (1) through the pushing parts (31) to tilt the top lid (2) upward.
2. The single-action lid-opening food storage container according to claim 1, wherein the handle (3) is arch-shaped, the two ends of the handle (3) are respectively provided with a rotating shaft (34), the two sides of the top lid (2) are respectively provided with a connecting hole (23), and the rotating shafts (34) are inserted into the connecting holes (23) and rotatably connected with the connecting holes (23).
3. The single-action lid-opening food storage container according to claim 2, wherein the handle (3) includes an open position and a closed position, and when the handle (3) is in the open position, a minimum distance between an axis of the rotating shaft (34) and the container body (1) is greater than a minimum distance between the axis of the rotating shaft (34) and the container body (1) when the handle (3) is in the closed position.
4. The single-action lid-opening food storage container according to claim 3, wherein when in the sealed state, a distance between the axis of the rotating shaft (34) and a lower side of the handle (3) is less than a distance between the axis of the rotating shaft (34) and an upper side of the handle (3).
5. The single-action lid-opening food storage container according to claim 1, wherein the sealing part includes a connecting shaft (32) and a sealing plug (33), the connecting shaft (32) is fixed on the handle (3), and the sealing plug (33) is sleeved on the connecting shaft (32); a limiting block (321) is provided on the connecting shaft (32), an inclined first guiding surface (322) is formed on a bottom of the limiting block (321), an inner wall of the sealing plug (33) is provided with a protruded limiting part (331), and a second guiding surface (332) is formed on the limiting part (331), and the first guiding surface (322) and the second guiding surface (332) are slidably connected to guide engagement between the limiting block (321) and the limiting part (331).
6. The single-action lid-opening food storage container according to claim 1, wherein an mounting cavity adapted for accommodating the handle (3) is provided on an edge of the top lid (2), and the handle (3) and the mounting cavity are rotatably connected; when the sealing part blocks the air aperture (21), the handle (3) is received in the mounting cavity.
7. The single-action lid-opening food storage container according to claim 6, wherein the handle (3) is provided with a limiting step (36) comprising a first step (361) and a second step (362), the first step (361) is adapted to abut against an edge of the container body (1), the sealing part is provided on the second step (362), the mounting cavity is provided with a third step (22), and the air aperture (21) is provided on the third step (22), a height difference between the first step (361) and the second step (362) is adapted to engage the third step (22); when the sealing part blocks the air aperture (21), a lower end face of the second step (362) abuts against an upper end face of the third step (22).
8. The single-action lid-opening food storage container according to claim 1, wherein a wall of the air aperture (21) is provided with a clamping part (211) protruding inward, and the clamping part (211) is configured to clamp the sealing part.
9. The single-action lid-opening food storage container according to claim 1, wherein the handle (3) is provided with an inclined contact surface (37) adapted to allow a finger to engage the handle (3) and drive the handle (3) to rotate.
10. The single-action lid-opening food storage container according to claim 1, wherein the handle (3) is provided with a gripping opening (38) adapted to allow a human hand to pass through, and after the human hand passes through the gripping opening (38), the top lid (2) is able to be lifted by the handle (3).
11. The single-action lid-opening food storage container according to claim 1, wherein the pushing parts (31) are adapted to rotationally abut against an upper end wall of the container body (1).
12. The single-action lid-opening food storage container according to claim 1, further comprising a sealing ring (4), wherein a clamping groove (24) for mounting the sealing ring (4) is circumferentially formed on a peripheral wall of the top lid (2), an edge of the sealing ring (4) protrudes from the clamping groove (24) and is slidably connected with an inner wall of the container body (1); when the top lid (2) drives the sealing ring (4) downward, the edge of the sealing ring (4) is deformed and abuts against the inner wall of the container body (1) to maintain the sealed state; a cavity (25) is provided above a wall of the clamping groove (24), and the cavity (25) provides a space for the deformation of the edge of the sealing ring (4) and / or provides space for the rotation of the pushing parts (31).