Rotary bouncing cup cover

Abstract

The utility model provides a rotating bouncing cup cover which comprises an outer cover body, an inner cover body, a rotating sleeve, a rotating ring, a straw and a straw connecting piece made of silica gel materials. The inner cover body is fixedly embedded in the inner side of the lower end of the outer cover body, the straw connecting piece is arranged in the inner cover body and the outer cover body in a penetrating mode from bottom to top and tightly attached to and sealed with the inner cover body in the circumferential direction, the upper end of the straw and the lower end of the straw connecting piece are inserted in a matched mode and sealed in the circumferential direction, and the rotating sleeve is fixedly connected to the outer side of the upper portion of the straw connecting piece in a sleeving mode; the rotating sleeve is rotationally connected with the inner side wall of the containing cavity, and the upper end of the straw connecting piece extends out of the rotating sleeve and forms a suction nozzle part; the outer cover body is connected with a locking structure; the rotating ring is rotationally connected to the outer portion of the upper end of the outer cover body in a sleeving mode, and when the rotating ring is rotated, the rotating ring is used for driving the locking structure to release the locking state of the rotating sleeve; a reset structure is arranged between the rotating ring and the outer cover body; the utility model has the advantage of convenience in use.

Description

Technical Field

[0001] This utility model relates to the field of cup lid technology, and more specifically, to a rotating, spring-loaded cup lid. Background Technology

[0002] A cup lid is an accessory used to connect to a cup body. Currently, Chinese patent announcement number CN214803963U discloses a cup lid with a suction nozzle. When using this cup lid, the suction part needs to be flipped at a certain angle under the action of the rotating part in order to connect the flow channel and the connecting channel and complete the drinking. That is, the user needs to manually flip the suction part to make the suction part extend out of the groove, which has the disadvantage of being inconvenient to use. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rotating pop-up cup lid, which has the advantage of being easy to use.

[0004] This utility model provides a rotating pop-up cup lid, including an outer lid body, an inner lid body, a rotating sleeve, a rotating ring, a straw, and a straw connector made of silicone material. The inner lid body is embedded in the inner side of the lower end of the outer lid body. The straw connector passes through the inner lid body and the outer lid body from bottom to top and is tightly sealed to the inner lid body circumferentially. The upper end of the straw is inserted into and circumferentially sealed to the lower end of the straw connector. The rotating sleeve is sleeved and fixed to the outer side of the upper part of the straw connector. The upper end of the outer lid body is provided with a receiving cavity. The rotating sleeve is rotatably connected to the inner wall of the receiving cavity. The upper end of the tube connector extends out of the rotating sleeve and forms a suction nozzle. A locking structure is connected to the outer cover. When the rotating sleeve and the suction nozzle are rotated to a horizontal state, the receiving cavity is used to receive the rotating sleeve and the suction nozzle, and the locking structure is used to lock the rotating sleeve. The rotating ring is rotatably sleeved on the outside of the upper end of the outer cover. When the rotating ring is rotated, the rotating ring is used to drive the locking structure to release the locking state of the rotating sleeve. A reset structure is provided between the rotating ring and the outer cover. When the rotating ring is released, the reset structure is used to drive the rotating ring to rotate and reset.

[0005] By adopting the above-described structure, when the rotating ring is rotated, it drives the locking structure to release the locking state of the rotating sleeve. Furthermore, due to the elasticity of the straw connector made of silicone material, the straw connector located at the rotating sleeve can pop out of the receiving cavity, meaning the rotating sleeve and the mouthpiece can pop out of the receiving cavity. At this point, the user can suck up the liquid from the cup through the mouthpiece, straw connector, and straw. In this process, the user does not need to manually rotate the mouthpiece and rotating sleeve, thus offering the advantage of ease of use. Moreover, when the rotating sleeve and mouthpiece are rotated to a horizontal state, they can be embedded in the receiving cavity, and the locking structure can lock them in place. Additionally, in this state, the silicone straw connector located between the rotating sleeve and the straw can be bent, and after bending, it automatically deforms and seals, preventing liquid from leaking out of the cup through the straw connector.

[0006] In one possible implementation, the inner cover has an annular expansion portion with a lower opening, and the outer wall of the straw connector has an annular protrusion edge, which is embedded in the annular expansion portion and tightly sealed to the annular expansion portion. By adopting this structure, the straw connector can be reliably assembled with the inner cover and achieve circumferential sealing under the embedding action of the annular protrusion edge and the annular expansion portion.

[0007] In one possible implementation, a rotating shaft is provided on both the front and rear sides of the lower end of the rotating sleeve, and a groove corresponding to the rotating shaft is provided on the inner wall of the receiving cavity. Each rotating shaft is embedded in the groove at the corresponding position and is rotatably connected to the groove. With this structure, the lower end of the rotating sleeve can be reliably rotatably connected to the inner side of the receiving cavity under the rotational cooperation of the rotating shaft and the groove.

[0008] In one possible implementation, the locking structure includes a movable frame and a spring. The movable frame is movably connected to the outer cover, and the spring is embedded between the movable frame and the outer cover. The movable frame is provided with a hook, and the outer wall of the rotating sleeve is provided with a protrusion. The inner side of the protrusion forms a groove, and the outer wall of the protrusion is provided with a guide surface. When the rotating sleeve and the nozzle are rotated to a horizontal position so that the rotating sleeve and the nozzle are embedded in the receiving cavity, the guide surface is used to cooperate with the hook to guide the end of the hook into the groove, and the spring is used to apply a pushing force to the movable frame so that the hook remains engaged with the groove. With this locking structure, when the rotating sleeve and the nozzle are rotated to a horizontal position so that the rotating sleeve and the nozzle are embedded in the receiving cavity, the guide surface can cooperate with the hook to guide the end of the hook into the groove, and under the action of the spring, the spring can apply a pushing force to the movable frame so that the hook remains engaged with the groove, that is, the locking state of the rotating sleeve and the nozzle can be maintained.

[0009] In one possible implementation, a limiting post is provided on the movable frame, and a limiting groove is provided on the inner wall of the outer cover. The limiting post is inserted into one end of the spring, and the other end of the spring is inserted into the limiting groove. With this structure, the spring can be limited by the cooperation of the limiting post and the limiting groove, thereby effectively preventing the spring from detaching from the movable frame and the outer cover.

[0010] In one possible implementation, a wedge-shaped pusher is provided on the inner wall of the rotating ring, and a wedge-shaped protrusion is provided on the movable frame. When the rotating ring is rotated, the pusher pushes the protrusion to move the movable frame away from the rotating sleeve, and causes the hook to disengage from the slot to release the locking state of the rotating sleeve. With this structure, when the rotating ring is rotated, the pusher can push the protrusion to move the movable frame away from the rotating sleeve. At this time, the hook can disengage from the slot, thereby releasing the locking state of the rotating sleeve. When the locking state of the rotating sleeve is released, the straw connector made of silicone material has a rebound force, which allows the straw connector located at the rotating sleeve to pop out of the receiving cavity. That is, the rotating sleeve and the mouthpiece can pop out of the receiving cavity. At this time, the user can suck up the liquid in the cup through the mouthpiece, the straw connector, and the straw.

[0011] In one possible implementation, the reset structure includes an elastic band; one end of the elastic band is sleeved with a support post located on the top of the outer cover, and the other end of the elastic band is fastened with an overbite on the inner wall of the rotating ring; when the rotating ring is released, the elastic band is used to drive the rotating ring to rotate and reset; by adopting this reset structure, when the rotating ring is released, under the action of the elastic band, the elastic band can drive the rotating ring to rotate in the opposite direction and reset, and this reset structure has the advantage of simple structure.

[0012] In one possible implementation, two sliding blocks are evenly distributed around the circumference of the rotating ring on the inner wall of the rotating ring, and an arc-shaped groove corresponding to each of the two sliding blocks is provided on the outer wall of the outer cover. Each sliding block is engaged in the corresponding arc-shaped groove and slidably connected to the arc-shaped groove. With this structure, the rotating ring can be reliably rotatably connected to the upper end of the outer cover under the sliding cooperation between the sliding block and the arc-shaped groove. During the rotation of the rotating ring relative to the outer cover, when the sliding block abuts against the end of the arc-shaped groove, the rotation of the rotating ring can be limited. In addition, after the sliding block is engaged in the corresponding arc-shaped groove, the axial separation of the rotating ring from the outer cover can be prevented.

[0013] In one possible implementation, the outer wall of the rotating ring is provided with a plurality of anti-slip grooves spaced apart in the circumferential direction around the rotating ring; by adopting this structure, when the fingers pinch the rotating ring and drive the rotating ring to rotate, the friction between the fingers and the rotating ring can be increased under the action of the anti-slip grooves, thereby achieving the purpose of anti-slip during the rotation of the rotating ring.

[0014] In one possible implementation, an air inlet is provided on the inner cover, extending from bottom to top through the outer cover and into the receiving cavity. When the rotating sleeve and the suction nozzle are rotated to a horizontal position so that they are embedded in the receiving cavity, the suction nozzle abuts against and blocks the upper end of the air inlet. Because of the air inlet, when the straw connector located at the rotating sleeve pops out of the receiving cavity, i.e., after the rotating sleeve and the suction nozzle pop out of the receiving cavity, the suction nozzle can release the blockage of the air inlet, thereby allowing the user to... When the liquid is drawn from the cup via the nozzle, straw connector, and straw, air from the external environment can enter the cup through the air inlet, ensuring air pressure balance within the cup and facilitating the user's intake of liquid. When the rotating sleeve and nozzle are rotated to a horizontal position and embedded in the receiving cavity, the nozzle abuts against the upper end of the air inlet and blocks it, thus preventing liquid from leaking out of the air inlet when the rotating pop-up lid is mounted on the cup and carried in the cup. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of the rotating sleeve and suction nozzle after they have rotated out of the receiving cavity;

[0016] Figure 2 This is a cross-sectional view of the rotating sleeve and suction nozzle after they have rotated out of the receiving cavity.

[0017] Figure 3 A three-dimensional structural diagram of the rotating sleeve and the suction nozzle after they are embedded in the receiving cavity;

[0018] Figure 4 A cross-sectional view of the rotating sleeve and the suction nozzle after they are embedded in the receiving cavity;

[0019] Figure 5 This is an exploded three-dimensional structural diagram of the first part of this utility model;

[0020] Figure 6 This is an exploded perspective view of the second part of this utility model;

[0021] Figure 7 This is an exploded three-dimensional structural diagram of the third part of this utility model. Detailed Implementation

[0022] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0023] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0024] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] See Figures 1-7 As shown in the figure, this application discloses a rotating bouncing cup lid, including an outer lid 1, an inner lid 2, a rotating sleeve 3, a rotating ring 4, a straw 5, and a straw connector 6 made of silicone material; the inner lid 2 is embedded in the inner side of the lower end of the outer lid 1, the straw connector 6 is inserted from bottom to top into the inner lid 2 and the outer lid 1 and is tightly sealed to the inner lid 2 circumferentially, the upper end of the straw 5 is inserted into the lower end of the straw connector 6 and is circumferentially sealed, the rotating sleeve 3 is sleeved and fixed on the outer side of the upper part of the straw connector 6, the upper end of the outer lid 1 is provided with a receiving cavity 11, and the rotating sleeve 3 is rotatably connected to the inner wall of the receiving cavity 11. The upper end of the straw connector 6 extends out of the rotating sleeve 3 and forms a mouthpiece 61; a locking structure is connected to the outer cover 1. When the rotating sleeve 3 and the mouthpiece 61 are rotated to a horizontal state, the receiving cavity 11 is used to receive the rotating sleeve 3 and the mouthpiece 61, and the locking structure is used to lock the rotating sleeve 3; the rotating ring 4 is rotatably sleeved on the outside of the upper end of the outer cover 1. When the rotating ring 4 is rotated, the rotating ring 4 is used to drive the locking structure to release the locking state of the rotating sleeve 3; a reset structure is provided between the rotating ring 4 and the outer cover 1. When the rotating ring 4 is released, the reset structure is used to drive the rotating ring 4 to rotate and reset.

[0027] The inner cover 2 is provided with an annular expansion portion 21 with an opening at the lower end, and the outer wall of the straw connector 6 is provided with an annular protrusion 62. The annular protrusion 62 is embedded in the annular expansion portion 21 and is tightly sealed to the annular expansion portion 21. By adopting this structure, under the embedding action of the annular protrusion and the annular expansion portion, the straw connector can be reliably assembled with the inner cover and the purpose of circumferential sealing can be achieved.

[0028] Rotating sleeve 3 has a rotating shaft 31 on both the front and rear sides of its lower end. The inner wall of the receiving cavity 11 has a groove 12 that corresponds to the rotating shaft 31. Each rotating shaft 31 is embedded in the groove 12 at the corresponding position and is rotatably connected to the groove 12. With this structure, the lower end of the rotating sleeve can be reliably rotatably connected to the inner side of the receiving cavity under the rotational cooperation of the rotating shaft and the groove.

[0029] The locking structure includes a movable frame 7 and a spring 8. The movable frame 7 is movably connected to the outer cover 1, and the spring 8 is fitted between the movable frame 7 and the outer cover 1. The movable frame 7 is provided with a hook 71, and the outer wall of the rotating sleeve 3 is provided with a protrusion 32. The inner side of the protrusion 32 forms a groove 33, and the outer wall of the protrusion 32 is provided with a guide surface 34. When the rotating sleeve 3 and the suction nozzle 61 are rotated to a horizontal state so that the rotating sleeve 3 and the suction nozzle 61 are embedded in the receiving cavity 11, the guide surface 34 is used to cooperate with the hook 71 for guidance. The end of the hook 71 is engaged in the slot 33, and the spring 8 applies a pushing force to the moving frame 7 to keep the hook 71 engaged with the slot 33. With this locking structure, when the rotating sleeve and the nozzle are rotated to a horizontal position so that the rotating sleeve and the nozzle are embedded in the receiving cavity, the guide surface can cooperate with the hook to guide the end of the hook to engage in the slot. Under the action of the spring, the spring can apply a pushing force to the moving frame to keep the hook engaged with the slot, that is, it can maintain the locking state of the rotating sleeve and the nozzle.

[0030] The movable frame 7 is provided with a limiting post 72, and the inner wall of the outer cover 1 is provided with a limiting groove 13. The limiting post 72 is partially inserted into one end of the spring 8, and the other end of the spring 8 is inserted into the limiting groove 13. By adopting this structure, the spring can be limited by the cooperation of the limiting post and the limiting groove, thereby effectively preventing the spring from detaching from the movable frame and the outer cover.

[0031] A wedge-shaped pusher 41 is provided on the inner wall of the rotating ring 4, and a wedge-shaped protrusion 73 is provided on the movable frame 7. When the rotating ring 4 is rotated, the pusher 41 pushes the protrusion 73 to move the movable frame 7 away from the rotating sleeve 3, and causes the hook 71 to disengage from the slot 33 to release the locking state of the rotating sleeve 3. With this structure, when the rotating ring is rotated, the pusher can push the protrusion to move the movable frame away from the rotating sleeve. At this time, the hook can disengage from the slot, thereby releasing the locking state of the rotating sleeve. When the locking state of the rotating sleeve is released, the straw connector made of silicone material has a rebound force, which allows the straw connector located at the rotating sleeve to pop out of the receiving cavity. That is, the rotating sleeve and the mouthpiece can pop out of the receiving cavity. At this time, the user can suck up the liquid in the cup through the mouthpiece, the straw connector, and the straw.

[0032] The reset structure includes an elastic band 9; one end of the elastic band 9 is sleeved with a support post 14 located on the top of the inner cover 1, and the other end of the elastic band 9 is engaged with a buckle 42 located on the inner wall of the rotating ring 4; when the rotating ring 4 is released, the elastic band 9 is used to drive the rotating ring 4 to rotate and reset; by adopting this reset structure, when the rotating ring is released, under the action of the elastic band, the elastic band can drive the rotating ring to rotate in the opposite direction and reset, and this reset structure has the advantage of simple structure.

[0033] Two sliding blocks 43 are evenly distributed around the circumference of the rotating ring 4 on the inner wall of the rotating ring 4. The outer wall of the outer cover 1 is provided with arc-shaped grooves 15 corresponding to the two sliding blocks 43. Each sliding block 43 is engaged in the arc-shaped groove 15 on the corresponding side and is slidably connected to the arc-shaped groove 15. With this structure, the rotating ring can be reliably rotatably connected to the upper end of the outer cover under the sliding cooperation between the sliding block and the arc-shaped groove. When the rotating ring rotates relative to the outer cover, the rotation of the rotating ring can be limited when the sliding block abuts against the end of the arc-shaped groove. In addition, after the sliding block is engaged in the arc-shaped groove on the corresponding side, the axial separation of the rotating ring from the outer cover can be prevented.

[0034] The outer wall of the rotating ring 4 is provided with a number of anti-slip grooves 44 that are spaced apart in the circumferential direction around the rotating ring 4. With this structure, when the fingers pinch the rotating ring and drive the rotating ring to rotate, the friction between the fingers and the rotating ring can be increased under the action of the anti-slip grooves, so as to achieve the purpose of anti-slip during the rotation of the rotating ring.

[0035] An air inlet 22 is provided on the inner cover 2, which extends from bottom to top through the outer cover 1 and into the receiving cavity 11. When the rotating sleeve 3 and the suction nozzle 61 are rotated to a horizontal position so that the rotating sleeve 3 and the suction nozzle 61 are embedded in the receiving cavity 11, the suction nozzle 61 abuts against the upper end of the air inlet 22 and blocks the air inlet 22. With the air inlet provided, when the suction tube connector located at the rotating sleeve pops out of the receiving cavity, that is, when the rotating sleeve and the suction nozzle pop out of the receiving cavity, the suction nozzle can release the blocking state of the air inlet. Therefore, when the user draws liquid from the cup through the nozzle, straw connector, and straw, air from the external environment can enter the cup through the air inlet, ensuring air pressure balance within the cup and facilitating the user's drawing of liquid. When the rotating sleeve and nozzle are rotated to a horizontal position so that they are embedded in the receiving cavity, the nozzle can abut against the upper end of the air inlet and block it. This prevents liquid from leaking out of the air inlet when the rotating pop-up cup lid is attached to the cup and carried in the cup.

[0036] In using this invention, the rotating pop-up cup lid is connected to the rim of the cup body, that is, the lower end of the outer lid is connected to the rim of the cup body. When the user needs to draw liquid from the cup, the rotating ring rotates relative to the outer lid. After the rotating ring is rotated, it can drive the locking structure to release the locking state of the rotating sleeve. At this time, the rotating sleeve and the nozzle can pop out from the receiving cavity, that is, the rotating sleeve and the nozzle can pop out from the receiving cavity, so that the user can draw liquid through the nozzle, the straw connector, and the straw. The liquid in the cup; when the rotating ring is released, the reset structure can drive the rotating ring to rotate and reset; when the rotating sleeve and the nozzle are rotated to a horizontal state, the rotating sleeve and the nozzle can be embedded in the receiving cavity, and the locking structure can lock the rotating sleeve and the nozzle in the receiving cavity; in addition, in this state, the straw connector made of silicone material located between the rotating sleeve and the straw can be bent, and after the straw connector is bent, it can automatically deform and seal, that is, it can prevent the liquid in the cup from leaking out through the straw connector.

[0037] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A spin bounce cup lid characterized by: The utility model provides a cover is provided with locking structure, and the locking structure is used for locking the rotation sleeve, and the rotation ring is used for driving the locking structure to release the locking state of rotation sleeve when being rotated, and the reset structure is arranged between rotation ring and outer cover, and the reset structure is used for driving rotation ring to rotate reset when being released.

2. The spin hop cup lid of claim 1, wherein: The inner cover (2) is provided with an annular expansion part (21) with an open lower end, and the outer wall of the straw connecting piece (6) is provided with an annular flange (62), which is embedded in the annular expansion part (21) and tightly sealed with the annular expansion part (21).

3. The spin hop cup lid of claim 1, wherein: The front and back sides of the lower end of the rotation sleeve (3) are each provided with a rotating shaft (31), and the inner wall of the accommodating cavity (11) is provided with an embedding groove (12) corresponding to the rotating shaft (31), and each rotating shaft (31) is embedded in the embedding groove (12) at the corresponding position and is in rotating connection with the embedding groove (12).

4. The spin hop cup lid of any one of claims 1-3, wherein: The locking structure includes a moving frame (7) and a spring (8), the moving frame (7) is movably connected to the outer cover (1), the spring (8) is embedded between the moving frame (7) and the outer cover (1), the moving frame (7) is provided with a hook (71), the outer side wall of the rotation sleeve (3) is provided with a protruding part (32), the inner side of the protruding part (32) forms a clamping groove (33), and the outer side wall of the protruding part (32) is provided with a guide surface (34); when the rotation sleeve (3) and the nozzle part (61) are rotated to a horizontal state so that the rotation sleeve (3) and the nozzle part (61) are embedded in the accommodating cavity (11), the guide surface (34) is used for cooperating with the hook (71) to guide the end of the hook (71) to be clamped into the clamping groove (33), and the spring (8) is used for applying a pushing force to the moving frame (7) to keep the hook (71) in clamping state with the clamping groove (33).

5. The spin hop cup lid of claim 4, wherein: The mobile frame (7) is provided with a limiting column (72), the inner wall of the outer cover body (1) is provided with a limiting groove (13), the limiting column (72) is partially inserted in one end of the spring (8), and the other end of the spring (8) is inserted in the limiting groove (13).

6. The spin hop cup lid of claim 4, wherein: The inner wall of the rotating ring (4) is provided with a wedge-shaped push block (41), and the mobile frame (7) is provided with a wedge-shaped protrusion (73); when the rotating ring (4) is rotated, the push block (41) is used for pushing the protrusion (73) to move the mobile frame (7) away from one side of the rotating sleeve (3), and the clamping hook (71) is separated from the clamping groove (33) to release the locking state of the rotating sleeve (3).

7. The spin hop cup lid of any one of claims 1-3 or any one of claims 5-6, wherein: The reset structure comprises an elastic belt (9); one end of the elastic belt (9) is sleeved with a supporting column (14) on the top of the outer cover body (1), and the other end of the elastic belt (9) is matched with a reverse buckle (42) on the inner wall of the rotating ring (4); when the rotating ring (4) is released, the elastic belt (9) is used for driving the rotating ring (4) to rotate and reset.

8. The spin hop cup lid of any one of claims 1-3 or any one of claims 5-6, wherein: The inner wall of the rotating ring (4) is provided with two sliding blocks (43) which are uniformly distributed in the circumferential direction of the rotating ring (4), and the outer wall of the outer cover body (1) is provided with an arc-shaped groove (15) corresponding to the two sliding blocks (43), each sliding block (43) is buckled in the corresponding arc-shaped groove (15) and is in sliding connection with the arc-shaped groove (15).

9. The spin hop cup lid of any one of claims 1-3 or any one of claims 5-6, wherein: The outer wall of the rotating ring (4) is provided with a plurality of anti-skid grooves (44) which are distributed at intervals in the circumferential direction of the rotating ring (4).

10. The spin hop cup lid of any one of claims 1-3 or any one of claims 5-6, wherein: The inner cover body (2) is provided with an air inlet nozzle (22), the air inlet nozzle (22) penetrates the outer cover body (1) from bottom to top and extends into the containing cavity (11); after the rotating sleeve (3) and the suction nozzle portion (61) are rotated to a horizontal state so that the rotating sleeve (3) and the suction nozzle portion (61) are embedded into the containing cavity (11), the suction nozzle portion (61) is used for abutting against the upper end of the air inlet nozzle (22) and blocking the air inlet nozzle (22).

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