Fresh-keeping cup structure capable of manually exhausting air and sealing fresh-keeping cup

Abstract

The utility model relates to the technical field of fresh-keeping devices, in particular to a sealed fresh-keeping cup structure capable of manually exhausting air, which comprises a cup body, a cup cover and a sealing ring, the cup cover can be inserted into a cup opening of the cup body and can slide up and down along an inner cavity of the cup body, and the sealing ring is fixedly arranged on the periphery of the cup cover. A gap between the outer side wall of the cup cover and the inner side wall of the cup body can be filled with the sealing ring; an air guide assembly is arranged on the cup cover, and the air guide assembly can enable an inner cavity of the cup body below the cup cover to be separated from or communicated with the outside; according to the sealed fresh-keeping cup structure capable of manually exhausting air, the sealing ring is arranged on the outer side wall of the cup cover, so that the volume of the inner cavity of the lower part of the cup body is determined; the cup cover can move along the inner cavity of the cup body to change the volume, and air in the inner cavity of the cup body can be discharged through the air guide assembly, so that food materials in the cup body are kept fresh; air can enter the inner cavity of the cup body through the air guide assembly, and the problem that the cup cover is difficult to take out due to negative pressure is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh-keeping devices, in particular to a fresh-keeping cup structure capable of manual exhaust and sealing. Background Art

[0002] Vacuum preservation typically involves extracting air from a container to prevent spoilage caused by prolonged contact with air, thereby preserving food's freshness and quality for longer. Existing vacuuming technology primarily relies on piston-type vacuum pumps, which are divided into manual and electric types based on their power source. Manual vacuuming devices require the user to repeatedly pull the piston assembly back and forth, which is inconvenient and provides a poor user experience. Electric vacuum pumps, on the other hand, use a motor to drive the vacuum pump, expelling air from the container.

[0003] For example, Chinese patent CN107323724A discloses a liftable vacuum fresh-keeping machine, which includes a main body, a lifting mechanism, a box, a pressure relief mechanism, and a vacuum pump. The lifting mechanism is located on the front side of the main body, and the box (vacuum head) is connected to the lifting mechanism, allowing it to move up and down along the main body. The lifting mechanism consists of two U-shaped guide rails and a roller bearing, and a pressure relief brake mechanism is installed inside the box. The structure of the electric vacuum fresh-keeping machine is relatively complex, and the overall cost is relatively high.

[0004] In the above-mentioned prior art, the vacuum pump exists as an independent device. For containers used for fresh-keeping, a corresponding interface needs to be configured to connect the vacuum pump, which has a great impact on the appearance and structure of the fresh-keeping container. In addition, configuring a vacuum pump is also very cumbersome for users to store, which seriously affects the user's willingness to use.

[0005] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0006] The purpose of the utility model is to provide a manually vented and sealed fresh-keeping cup structure with reasonable structure and convenient use in view of the defects and shortcomings of the existing technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] The utility model describes a manually vented and sealed fresh-keeping cup structure, comprising a cup body, a cup lid and a sealing ring. The cup lid can be inserted into the cup mouth of the cup body and can slide up and down along the inner cavity of the cup body. The sealing ring is fixedly arranged on the outer periphery of the cup lid and can fill the gap between the outer wall of the cup lid and the inner wall of the cup body. An air guide component is provided on the cup lid, which can separate or connect the inner cavity of the cup body below the cup lid from the outside world.

[0009] It can be understood that the inner cavity of the cup body is composed of its bottom and side walls. Of course, depending on the shape of the cup body, the cross-section of the inner cavity can be circular, regular polygonal or irregular. The outer shape of the cup lid is adapted to the shape of the inner cavity, so that the cup lid can be inserted from the cup mouth of the cup body and slide up and down along the inner cavity of the cup body.

[0010] A sealing ring is provided on the outer wall of the cup lid to fill the gap between the cup lid and the cup body, thereby sealing the cup mouth and the lower inner cavity of the cup body. Generally speaking, the bottom of the cup body is sealed, so that the cup lid and the sealing ring seal the inner cavity of the cup body below the cup lid, and the volume of this part of the inner cavity of the cup body can be determined.

[0011] Furthermore, the cup cover can move downward along the inner cavity of the cup body, thereby changing the volume of the lower inner cavity of the cup body, and the air in the inner cavity of this part of the cup body can be discharged through the air guide component, so that the food in the cup body remains fresh.

[0012] As mentioned above, the cup cover can be moved upward along the inner cavity of the cup body, so as to remove the cup cover from the cup body. Of course, at this time, the air guide component connects the outside world and the inner cavity of the cup body, so that air can enter the inner cavity of the cup body through the air guide component, preventing the problem of negative pressure causing the cup cover to be difficult to remove.

[0013] According to the above solution, the air guide assembly includes a one-way valve A and a one-way valve B, which are arranged in opposite directions. When the cup lid slides toward the bottom of the cup body, the inner cavity of the cup body below the lid can be vented to the outside world through the one-way valve A. When the cup lid slides away from the bottom of the cup body, the outside world can be vented to the inner cavity of the cup body below the lid through the one-way valve B. When the cup lid is placed on the rim of the cup body, the entire inner cavity of the cup body is isolated from the outside world. Furthermore, the cup lid can slide up and down along the inner cavity of the cup body, and the volume of the inner cavity of the cup body changes accordingly. It is understood that the sealing ring on the cup lid ensures a relative seal within the inner cavity of the cup body, so that the pressure within the inner cavity of the cup body changes with the volume. Therefore, when the cup lid moves toward the bottom of the cup body, the volume of the inner cavity of the cup body decreases, and the inner cavity of the cup body is vented to the outside world through the one-way valve B, allowing air and pressure to escape from the inner cavity of the cup body, thereby achieving the purpose of preserving the food in the inner cavity of the cup body. On the contrary, when the cup cover moves toward the cup mouth of the cup body, the volume of the inner cavity of the cup body increases, and the inner cavity of the cup body is connected to the outside through the one-way valve A, allowing air to enter the inner cavity of the cup body from the outside, avoiding the problem of negative pressure causing the cup cover to be difficult to remove.

[0014] According to the above solution, the air guide assembly includes a top cover, a sealing member, and an air guide seat. The air guide seat is fixedly mounted on the cup cover, and the top cover is paired with the air guide seat. The air guide seat is provided with an air outlet, and the sealing member can movably cover the air outlet to form a one-way valve A. The top cover is provided with an air inlet, and the sealing member can movably cover the air inlet to form a one-way valve B. The air inlet provided on the top cover connects to the inner cavity of the cup body, and the air outlet provided on the air guide seat connects to the inner cavity of the cup body. The top cover and the air guide seat are paired vertically, thereby fixing the sealing member therebetween. The sealing member pairs the air inlet and air outlet from both the vertical and horizontal directions, so that when the cup cover moves up and down along the inner cavity of the cup body, the one-way valve A or the one-way valve B can respectively connect the inner cavity of the cup body to the outside world.

[0015] According to the above scheme, the sealing member includes a butterfly valve, which is arranged between the top cover and the air guide seat, and the butterfly valves are respectively sealed on the air inlet and the air outlet; the air guide seat is provided with a notch that matches the air inlet, and the butterfly valve can be deformed toward the first notch so that the air inlet is connected to the inner cavity of the cup body; the top cover is provided with an avoidance position that matches the air outlet, and the butterfly valve can be deformed toward the avoidance position so that the air outlet is connected to the inner cavity of the cup body. Preferably, the sealing member is a butterfly valve, most of which is clamped and fixed by the top cover and the air guide seat, and the butterfly valve is attached to and covers the air inlet and the air outlet. Correspondingly, a notch is provided on the air guide seat below the air inlet, and the butterfly valve there can be deformed toward the notch so that the air inlet can communicate with the inner cavity of the cup body and the outside world. As mentioned above, a avoidance position is provided on the top cover above the air outlet, and the butterfly valve there can be deformed toward the avoidance position so that the air outlet can communicate with the inner cavity of the cup body and the outside world.

[0016] According to the above solution, a handle is further included, and the handle is connected to the cup lid. The handle can drive the cup lid to slide up and down along the inner cavity of the cup body, and the handle is connected to the cup body so that the cup lid is inserted into the cup mouth of the cup body. The handle is used to facilitate the user to operate the cup lid, and the handle drives the cup lid to slide up and down along the inner cavity of the cup body. Preferably, the handle can cooperate with the cup mouth of the cup body to fix the cup lid on the cup mouth.

[0017] Specifically, the handle needs to be inserted into the inner cavity of the cup body along with the cup lid. The handle usually appears in a straight handle structure vertically arranged on the cup lid. The handle of this straight handle structure is suitable for pulling, but not suitable for selectively operating the cup lid. The preferred handle of the present invention is an inverted "U"-shaped structure, and the two ends of the handle are respectively connected to the cup lid, so that the handle can drive the cup lid to rotate on the horizontal plane. Correspondingly, when the handle is set along the 0° direction of the cup body, the two ends of the handle can be hooked on the cup mouth of the cup body. When the handle is rotated to the 45° direction of the cup body, the handle can be inserted into the inner cavity of the cup body along with the cup lid.

[0018] Alternatively, telescopic structures may be provided at both ends of the handle so that the handle can be hooked on the cup mouth of the cup body through the telescopic structure. When the telescopic structure is retracted into the handle, the horizontal length of the handle is smaller than the inner cavity diameter of the cup body, so that the handle can be inserted into the inner cavity of the cup body along with the cup lid.

[0019] According to the above scheme, the inner cavity of the cup body is formed by stretching a non-circular trajectory, and the projection of the non-circular trajectory on the horizontal plane has a large size H and a small size M; the handle is rotatably connected to the cup lid, and the length of the handle in the horizontal direction is L, H>L>M. It can be understood that if the inner cavity of the cup body is formed by stretching a circular trajectory, the diameter of the inner cavity of the cup body is unique, and the handle needs to change in length in order to be inserted into the inner cavity of the cup body or hung on the cup mouth. The preferred cup body of the present utility model is formed by stretching a non-circular trajectory, such as an ellipse, a polygon, etc., so that the inner cavity of the cup body has a large size H and a small size M. When the handle is rotated to a certain angle, its length direction L coincides with the large size H or the small size M, so that the handle is hung on the cup mouth of the cup body or inserted into the inner cavity of the cup body.

[0020] According to the above solution, preferably, the inner cavity of the cup body is formed by stretching an approximately square trajectory, the small dimension M is the distance between the two opposite side walls of the inner cavity of the cup body, and the large dimension H is the diagonal length of the inner cavity of the cup body. When the handle is at 0° of the cup body, the length L of the handle is parallel to the width of the cup body, that is, the small dimension M. At this time, L>M, and the two ends of the handle can be hooked on the cup mouth. The handle is rotated 45° so that the length L of the handle coincides with the diagonal of the body. At this time, L<H, so that the handle can be inserted into the inner cavity of the cup body along with the cup lid.

[0021] According to the above scheme, the present invention is preferably provided with an insertion port on the cup cover, a sliding groove on the inner wall of the insertion port, a turntable on the handle, a sliding buckle on the turntable, and the sliding buckle is connected with the sliding groove so that the turntable can be rotatably set in the insertion port.

[0022] The utility model provides a manually vented and sealed fresh-keeping cup structure, in which a sealing ring is provided on the outer wall of the cup lid, so that the inner cavity of the lower part of the cup body is relatively closed, and the volume of the inner cavity of this part of the cup body can be determined; the cup lid can be moved downward along the inner cavity of the cup body, thereby changing the volume of the above-mentioned inner cavity of the cup body, and the air in the inner cavity of this part of the cup body can be discharged through the air guide component, so that the food in the cup body remains fresh; the air guide component connects the outside world and the inner cavity of the cup body, so that air can enter the inner cavity of the cup body through the air guide component, thereby preventing the problem of negative pressure causing the cup lid to be difficult to remove. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the cup cover at the cup mouth of the utility model;

[0024] Figure 2This is a schematic diagram of the overall split structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the cup cover of the present invention;

[0026] Figure 4 It is a schematic diagram of the cup cover of the present invention being inserted into the inner cavity of the cup body.

[0027] In the picture:

[0028] 1. Cup body; 2. Cup lid; 3. Top cover; 4. Handle; 21. Sealing ring; 22. Air guide seat; 23. Air outlet; 24. Notch; 25. Insertion port; 26. Slide; 31. Air inlet; 32. Butterfly valve; 33. Avoidance position; 41. Turntable; 42. Slide buckle. DETAILED DESCRIPTION

[0029] The technical solution of the present utility model is described below with reference to the accompanying drawings and embodiments.

[0030] like Figure 1-4 As shown, the utility model describes a manually vented and sealed fresh-keeping cup structure, comprising a cup body 1, a cup cover 2 and a sealing ring 21. The cup cover 2 can be inserted into the cup mouth of the cup body 1, and the cup cover 2 can slide up and down along the inner cavity of the cup body 1. The sealing ring 21 is fixedly arranged on the outer periphery of the cup cover 2, and the sealing ring 21 can fill the gap between the outer wall of the cup cover 2 and the inner wall of the cup body 1; an air guide component is provided on the cup cover 2, and the air guide component can separate or connect the inner cavity of the cup body 1 below the cup cover 2 with the outside world.

[0031] It can be understood that the inner cavity of the cup body 1 is composed of its bottom and side walls. Of course, according to the shape of the cup body 1, the cross-section of the inner cavity can be circular, regular polygonal or irregular. The outer shape of the cup cover 2 is adapted to the shape of the inner cavity, so that the cup cover 2 can be inserted from the cup mouth of the cup body 1 and slide up and down along the inner cavity of the cup body 1.

[0032] A sealing ring 21 is provided on the outer wall of the cup lid 2 to fill the gap between the cup lid 2 and the cup body 1, thereby sealing the cup opening and the lower inner cavity of the cup body 1. Generally speaking, the bottom of the cup body 1 is sealed, so that the cup lid 2 and the sealing ring 21 seal the inner cavity of the cup body 1 below the cup lid 2, and the volume of the inner cavity of the cup body 1 below the cup lid 2 can be determined.

[0033] Furthermore, the cup cover 2 can move downward along the inner cavity of the cup body 1, thereby changing the volume of the lower inner cavity of the cup body 1, and the air in the inner cavity of this part of the cup body 1 can be discharged through the air guide component, so that the food in the cup body 1 remains fresh.

[0034] As mentioned above, the cup cover 2 can be moved upward along the inner cavity of the cup body 1, so as to remove the cup cover 2 from the cup body 1. Of course, at this time, the air guide component connects the outside world and the inner cavity of the cup body 1, so that air can enter the inner cavity of the cup body 1 through the air guide component, preventing the problem of negative pressure causing the cup cover 2 to be difficult to remove.

[0035] The air guide assembly includes a one-way valve A and a one-way valve B, and the one-way valve A and the one-way valve B are arranged in opposite directions; when the cup cover 2 slides toward the bottom of the cup body 1 in the cup body 1, the inner cavity of the cup body 1 below the cup cover 2 can be connected to the outside world through the one-way valve A; when the cup cover 2 slides away from the bottom of the cup body 1 in the cup body 1, the outside world can be connected to the inner cavity of the cup body 1 below the cup cover 2 through the one-way valve B. When the cup cover 2 is set on the cup mouth of the cup body 1, the inner cavity of the cup body 1 is isolated from the outside world as a whole. Furthermore, the cup cover 2 can slide up and down along the inner cavity of the cup body 1. At this time, the volume of the inner cavity of the cup body 1 changes accordingly. It can be understood that the sealing ring 21 on the cup cover 2 makes the inner cavity of the cup body 1 relatively sealed, so that the pressure of the inner cavity of the cup body 1 will change with the change of volume. Therefore, when the cup cover 2 moves toward the bottom of the cup body 1, the volume of the inner cavity of the cup body 1 decreases, and the inner cavity of the cup body 1 is connected to the outside through the one-way valve B, allowing air and pressure to be discharged from the inner cavity of the cup body 1, thereby achieving the purpose of preserving the food in the inner cavity of the cup body 1. Conversely, when the cup cover 2 moves toward the cup mouth of the cup body 1, the volume of the inner cavity of the cup body 1 increases, and the inner cavity of the cup body 1 is connected to the outside through the one-way valve A, allowing air from the outside to enter the inner cavity of the cup body 1, thereby avoiding the problem of negative pressure making it difficult to remove the cup cover 2.

[0036] The air guide assembly includes a top cover 3, a seal, and an air guide seat 22. The air guide seat 22 is fixedly mounted on the cup cover 2, and the top cover 3 is paired with the air guide seat 22. The air guide seat 22 is provided with an air outlet 23, and the seal can movably cover the air outlet 23 to form a one-way valve A. The top cover 3 is provided with an air inlet 31, and the seal can movably cover the air inlet 31 to form a one-way valve B. The air inlet 31 provided on the top cover 3 communicates with the inner cavity of the cup body 1, and the air outlet 23 provided on the air guide seat 22 communicates with the inner cavity of the cup body 1. The top cover 3 and the air guide seat 22 are paired vertically to fix the seal therebetween. The seal mates the air inlet 31 and the air outlet 23 from both the upper and lower directions, so that when the cup cover 2 moves up and down along the inner cavity of the cup body 1, the one-way valve A or the one-way valve B can respectively communicate with the inner cavity of the cup body 1 and the outside.

[0037] The sealing member includes a butterfly valve 32, which is disposed between the top cover 3 and the air guide seat 22 and covers the air inlet 31 and the air outlet 23, respectively. The air guide seat 22 is provided with a notch 24 that matches the air inlet 31, and the butterfly valve 32 can deform toward the first notch 24 to connect the air inlet 31 to the inner cavity of the cup body 1. The top cover 3 is provided with an avoidance position 33 that matches the air outlet 23, and the butterfly valve 32 can deform toward the avoidance position 33 to connect the air outlet 23 to the inner cavity of the cup body 1. Preferably, the sealing member is a butterfly valve 32, most of which is clamped and fixed by the top cover 3 and the air guide seat 22, and the butterfly valve 32 is attached to and covers the air inlet 31 and the air outlet 23. Correspondingly, a notch 24 is provided on the air guide seat 22 below the air inlet 31, and a butterfly valve 32 therein can be deformed toward the notch 24, allowing the air inlet 31 to communicate with the inner cavity of the cup body 1 and the outside world. As described above, a relief position 33 is provided on the top cover 3 above the air outlet 23, and the butterfly valve 32 therein can be deformed toward the relief position 33, allowing the air outlet 23 to communicate with the inner cavity of the cup body 1 and the outside world.

[0038] The cup body 1 further comprises a handle 4, which is connected to the cup cover 2. The handle 4 can drive the cup cover 2 to slide up and down along the inner cavity of the cup body 1, and the handle 4 is connected to the cup body 1 so that the cup cover 2 is inserted into the cup mouth of the cup body 1. The handle 4 is used to facilitate the user to operate the cup cover 2, and the handle 4 drives the cup cover 2 to slide up and down along the inner cavity of the cup body 1. Preferably, the handle 4 can cooperate with the cup mouth of the cup body 1 to fix the cup cover 2 on the cup mouth of the cup body 1.

[0039] Specifically, the handle 4 needs to be inserted into the inner cavity of the cup body 1 along with the cup lid 2. The handle 4 usually appears in a straight handle structure vertically arranged on the cup lid 2. The handle 4 with this straight handle structure is suitable for pulling, but is not suitable for selectively operating the cup lid 2. The preferred handle 4 of the present invention is an inverted "U"-shaped structure, and the two ends of the handle 4 are respectively connected to the cup lid 2, so that the handle 4 can drive the cup lid 2 to rotate on the horizontal plane. Correspondingly, when the handle 4 is set along the 0° direction of the cup body 1, the two ends of the handle 4 can be hooked on the cup mouth of the cup body 1. When the handle 4 is rotated to the 45° direction of the cup body 1, the handle 4 can be inserted into the inner cavity of the cup body 1 along with the cup lid 2.

[0040] Alternatively, telescopic structures may be provided at both ends of the handle 4 so that the handle 4 can be hooked on the cup mouth of the cup body 1 through the telescopic structure. When the telescopic structure is retracted into the handle 4, the horizontal length of the handle 4 is smaller than the inner cavity diameter of the cup body 1, so that the handle 4 can be inserted into the inner cavity of the cup body 1 along with the cup cover 2.

[0041] The inner cavity of the cup body 1 is formed by stretching a non-circular trajectory, and the projection of the non-circular trajectory on the horizontal plane has a large size H and a small size M; the handle 4 is rotatably connected to the cup cover 2, and the length of the handle 4 in the horizontal direction is L, H>L>M. It can be understood that if the inner cavity of the cup body 1 is formed by stretching a circular trajectory, the diameter of the inner cavity of the cup body 1 is unique, and the handle 4 needs to change in length in order to be inserted into the inner cavity of the cup body 1 or to be hooked on the cup mouth. The preferred cup body 1 of the present invention is formed by stretching a non-circular trajectory, such as an ellipse, a polygon, etc., so that the inner cavity of the cup body 1 has a large size H and a small size M. When the handle 4 is rotated to a certain angle, its length direction L coincides with the large size H or the small size M, so that the handle 4 is hooked on the cup mouth of the cup body 1 or inserted into the inner cavity of the cup body 1.

[0042] Preferably, the inner cavity of the cup body 1 is formed by stretching an approximately square trajectory, the small dimension M is the distance between the two side walls of the inner cavity of the cup body 1, and the large dimension H is the diagonal length of the inner cavity of the cup body 1. When the handle 4 is at 0° of the cup body 1, the length L of the handle 4 is parallel to the width of the cup body 1, that is, the small dimension M. At this time, L>M, and the two ends of the handle 4 can be hooked on the cup mouth. The handle 4 is rotated 45° so that the length L of the handle 4 coincides with the diagonal of the body. At this time, L<H, so that the handle 4 can be inserted into the inner cavity of the cup body 1 along with the cup cover 2.

[0043] Preferably, the cup lid 2 is provided with an insertion port 25, the inner wall of the insertion port 25 is provided with a slide groove 26, the handle 4 is provided with a turntable 41, the turntable 41 is provided with a slide buckle 42, the slide buckle 42 is connected with the slide groove 26 so that the turntable 41 can be rotatably arranged in the insertion port 25.

[0044] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A manually vented and sealed fresh-keeping cup structure, comprising a cup body (1), a cup cover (2) and a sealing ring (21), characterized in that: The cup cover (2) can be inserted into the cup mouth of the cup body (1), and the cup cover (2) can slide up and down along the inner cavity of the cup body (1); the sealing ring (21) is fixedly arranged on the outer periphery of the cup cover (2), and the sealing ring (21) can fill the gap between the outer wall of the cup cover (2) and the inner wall of the cup body (1); The cup cover (2) is provided with an air guide component, which can separate or connect the inner cavity of the cup body (1) below the cup cover (2) with the outside world.

2. The manually vented and sealed fresh-keeping cup structure according to claim 1, characterized in that: The air guide component comprises a one-way valve A and a one-way valve B, and the one-way valve A and the one-way valve B are arranged in opposite directions; when the cup cover (2) slides toward the bottom of the cup body (1) in the cup body (1), the inner cavity of the cup body (1) below the cup cover (2) can be conducted to the outside world through the one-way valve A; when the cup cover (2) slides away from the bottom of the cup body (1) in the cup body (1), the outside world can be conducted to the inner cavity of the cup body (1) below the cup cover (2) through the one-way valve B.

3. The manually vented and sealed fresh-keeping cup structure according to claim 2, characterized in that: The air guide assembly comprises a top cover (3), a sealing member and an air guide seat (22); the air guide seat (22) is fixedly arranged on the cup cover (2), and the top cover (3) is matched with the air guide seat (22); the air guide seat (22) is provided with an air outlet (23), and the sealing member can movably cover the air outlet (23) to form a one-way valve A; the top cover (3) is provided with an air inlet (31), and the sealing member can movably cover the air inlet (31) to form a one-way valve B.

4. The manually vented and sealed fresh-keeping cup structure according to claim 3, characterized in that: The sealing member comprises a butterfly valve (32), which is arranged between the top cover (3) and the air guide seat (22), and the butterfly valve (32) respectively covers the air inlet (31) and the air outlet (23); the air guide seat (22) is provided with a notch (24) matched with the air inlet (31), and the butterfly valve (32) can be deformed toward the first notch (24) so ​​that the air inlet (31) is connected to the inner cavity of the cup body (1); the top cover (3) is provided with an avoidance position (33) matched with the air outlet (23), and the butterfly valve (32) can be deformed toward the avoidance position (33) so that the air outlet (23) is connected to the inner cavity of the cup body (1).

5. The manually vented and sealed fresh-keeping cup structure according to claim 1, characterized in that: The cup body (1) further comprises a handle (4), wherein the handle (4) is cooperatively connected with the cup cover (2), and the handle (4) can drive the cup cover (2) to slide up and down along the inner cavity of the cup body (1), and the handle (4) is cooperatively connected with the cup body (1) so that the cup cover (2) is inserted into the cup mouth of the cup body (1).

6. The manually vented and sealed fresh-keeping cup structure according to claim 5, characterized in that: The inner cavity of the cup body (1) is formed by stretching a non-circular trajectory, and the projection of the non-circular trajectory on the horizontal plane has a large size H and a small size M; the handle (4) is rotatably connected to the cup cover (2), and the length of the handle (4) in the horizontal direction is L, H>L>M.

7. The manually vented and sealed fresh-keeping cup structure according to claim 6, characterized in that: The inner cavity of the cup body (1) is formed by stretching an approximately square trajectory, the small dimension M is the distance between two opposite side walls of the inner cavity of the cup body (1), and the large dimension H is the diagonal length of the inner cavity of the cup body (1).

8. The manually vented and sealed fresh-keeping cup structure according to claim 5, characterized in that: The cup cover (2) is provided with an insertion port (25), and a sliding groove (26) is provided on the inner wall of the insertion port (25). The handle (4) is provided with a turntable (41), and a sliding buckle (42) is provided on the turntable (41). The sliding buckle (42) is connected with the sliding groove (26) so that the turntable (41) is rotatably arranged in the insertion port (25).

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