Variable-volume tank structure

Abstract

The utility model relates to the technical field of food packaging, in particular to a volume-variable tank structure which comprises a storage tank body, a tank cover, a volume adjusting assembly and a limiting assembly, the storage tank body is in threaded connection with the tank cover matched with the storage tank body, and the volume adjusting assembly is connected to the tank cover. The volume adjusting assembly comprises a first screw rod, a moving cylinder and a sealing plate. According to the tea storage tank, when the tea leaves in the storage tank body are gradually reduced, the position of the sealing plate in the volume adjusting assembly can be changed, the distance between the sealing plate and the bottom face of the storage tank body is changed, then the volume of the storage tank body is changed, and air in the storage tank body is reduced when the volume is changed; the contact area of air and tea leaves is reduced so as to slow down the oxidative deterioration speed of the tea leaves, the shelf life and taste of the tea leaves are prolonged, the volume can be adjusted only through the tank cover, the steps needed for adjusting the volume are reduced, and the problem that the adjustment is affected due to shielding of external objects is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to food packaging technical field, concretely relates to a variable volume's jar structure. BACKGROUND

[0002] The tinplate jar is a kind of packaging container made of tinplate (i.e. the material that tin is plated on the surface of steel material). The tinplate jar is widely used in food and beverage packaging, such as tea, coffee, health products, candies, cigarettes, etc. The tinplate jar can ensure the hygiene of food, minimize the possibility of corruption and effectively prevent health risks.

[0003] The Chinese patent with publication number CN216270455U discloses a variable volume jar, which comprises a jar body and a jar top matched with the inner diameter of the jar body. A sealing structure is arranged between the jar body and the jar top. The jar top is slidably connected with the inner wall of the jar body through the sealing structure. A sealing cover is detachably connected to the jar top. An exhaust pipe is fixedly connected to the sealing cover. An exhaust mechanism is installed in the exhaust pipe. A liquid discharge pipe is fixedly installed at the bottom of the jar body. A valve is installed on the liquid discharge pipe. The variable volume jar provided by the utility model adopts the idea of separating the jar body and the jar top, so that the volume of the jar is variable, thereby greatly reducing the risk of oxidation and infection of the remaining liquid in the jar after use.

[0004] However, in the above technical solution, the liquid in the jar is discharged only by installing a valve on the liquid discharge pipe. However, when adjusting the volume of the jar, the diameter of the sealing ring needs to be adjusted by adjusting the bolt to fit the inner wall of the jar. When the sealing cover is at a lower position in the jar, it is difficult for the user to access the bolt for adjustment due to the influence of the volume of the jar and the volume of the hand. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a variable volume jar structure.

[0006] The technical scheme of the utility model is a variable volume jar structure, which comprises a storage jar main body, a jar cover matched with the storage jar main body is detachably connected to the storage jar main body, a volume adjusting assembly is connected to the jar cover, the volume adjusting assembly comprises a first screw rod, a moving cylinder and a sealing plate, one end of the first screw rod is connected to the jar cover, the other end of the first screw rod is threadedly connected to the moving cylinder, and the sealing plate is connected to the moving cylinder; in the use state of the adjusting assembly, the first screw rod rotates to drive the moving cylinder and the sealing plate away from the jar cover, and the volume of the accommodating cavity formed between the sealing plate and the storage jar main body changes; a limiting assembly is connected to the jar cover; in the use state of the limiting assembly, the limiting end of the limiting assembly is perpendicularly moved and clamped with the jar cover to limit the rotation of the first screw rod, so that the storage jar main body is kept at a fixed volume.

[0007] Preferably, the can lid consists of a fixed lid and a rotating lid. The fixed lid is detachably connected to the main body of the storage tank, and the rotating lid is rotatably connected to the fixed lid.

[0008] Preferably, the volume regulating assembly further includes a one-way valve connected to a through hole in the sealing plate; and a guide assembly connected to the sealing plate. In use, the moving end of the guide assembly moves synchronously with the sealing plate, and the sealing plate rotates synchronously with the screw by limiting the movement of the multiple moving ends.

[0009] Preferably, the outer wall of the sealing plate has multiple grooves, and a sealing ring is fitted inside each groove.

[0010] Preferably, the guide assembly includes multiple guide rods connected to the fixed cover; and guide cylinders corresponding in number to the guide rods, which are connected to the mounting grooves on the movable cylinder and are slidably connected to the guide rods.

[0011] Preferably, both the fixed cover and the rotating cover are provided with multiple vent holes, and a filter screen is connected to the vent holes of the rotating cover.

[0012] Preferably, an observation window is provided on the main body of the storage tank.

[0013] Preferably, the limiting component includes a second screw connected to the rotating cover, the second screw having the same center as the rotating cover; an adjusting handle threadedly connected to the second screw, a rotating ring rotatably connected to the adjusting handle, and multiple limiting rods connected to the rotating ring, the limiting rods passing through through holes on the rotating cover and engaging with blind holes on the fixed cover.

[0014] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0015] In this invention, when the amount of tea leaves in the storage tank gradually decreases, the position of the sealing plate in the volume adjustment component can be changed. The distance between the sealing plate and the bottom surface of the storage tank changes, thereby altering the volume of the storage tank. When the volume changes, the amount of air inside the storage tank decreases, reducing the contact area between the air and the tea leaves, thus slowing down the oxidation and deterioration of the tea leaves, extending their shelf life and improving their taste. The volume can be adjusted simply by using the lid, reducing the steps required for volume adjustment and avoiding the problem of external objects obstructing the adjustment process. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 for Figure 1 A cross-sectional view;

[0018] Figure 3 For Figure 2 A structure of the enlarged view of the structure at A;

[0019] Figure 4 For Figure 1 The explosion schematic view.

[0020] Reference: 1, storage tank body; 2, tank cover; 3, first screw; 4, moving cylinder; 5, sealing plate; 6, fixed cover body; 7, rotating cover body; 8, one-way valve; 9, sealing ring; 10, guide rod; 11, guide cylinder; 12, air hole; 13, filter screen; 14, observation window; 15, second screw; 16, adjusting handle; 17, rotating ring; 18, limiting rod. DETAILED DESCRIPTION

[0021] Example one

[0022] As Figures 1-4 shown, the utility model discloses a variable volume jar structure, including storage tank body 1, tank cover 2, volume adjusting assembly and limiting component, storage tank body 1 is connected with the tank cover 2 of the adaptation of storage tank body 1 by screw thread,

[0023] In an alternative embodiment, the tank cover 2 is composed of a fixed cover body 6 and a rotating cover body 7, the fixed cover body 6 is detachably connected with the storage tank body 1, and the rotating cover body 7 is rotatably connected with the fixed cover body 6;

[0024] In an alternative embodiment, a plurality of air holes 12 are formed on the fixed cover body 6 and the rotating cover body 7, and a filter screen 13 is connected with the air holes 12 of the rotating cover body 7;

[0025] In an alternative embodiment, an observation window 14 is formed on the storage tank body 1, and the observation window 14 is used to observe the remaining food in the storage tank body 1;

[0026] The volume adjusting assembly is connected with the tank cover 2, and the volume adjusting assembly includes a first screw 3, a moving cylinder 4 and a sealing plate 5, one end of the first screw 3 is connected with the tank cover 2, the other end of the first screw 3 is threadedly connected with the moving cylinder 4, and the sealing plate 5 is connected with the moving cylinder 4; in the use state of the adjusting assembly, the first screw 3 rotates to drive the moving cylinder 4 and the sealing plate 5 to move away from the tank cover 2, and the volume of the accommodating cavity formed between the sealing plate 5 and the storage tank body 1 changes;

[0027] The limiting component is connected with the tank cover 2; in the use state of the limiting component, the limiting end of the limiting component moves perpendicularly to be clamped with the tank cover 2, the rotation of the first screw 3 is limited, and the storage tank body 1 is kept in a fixed volume.

[0028] Example two

[0029] As Figures 2-4As shown, this utility model proposes a variable volume tank structure. Compared with Embodiment 1, this embodiment describes the detailed structure of the volume adjustment component. The volume adjustment component also includes a one-way valve 8 and a guide component. The one-way valve 8 is connected to the through hole opened on the sealing plate 5, and the guide component is connected to the sealing plate 5. When the guide component is in use, the moving end of the guide component moves synchronously with the sealing plate 5, and the sealing plate 5 rotates synchronously with the screw by limiting the movement of multiple moving ends.

[0030] In an optional embodiment, the outer wall of the sealing plate 5 is provided with a plurality of grooves, and a sealing ring 9 is fitted in each groove; the sealing ring 9 fits against the inner wall of the storage tank body 1 to prevent liquid from flowing out from the gap between the sealing plate 5 and the storage tank body 1.

[0031] The guide assembly includes guide rods 10 and guide cylinders 11. Multiple guide rods 10 are distributed around the central axis of the can cover 2. The guide rods 10 are connected to the fixed cover body 6. The number of guide cylinders 11 corresponds to the number of guide rods 10. The guide cylinders 11 are connected to the mounting grooves opened on the movable cylinder 4. The guide cylinders 11 are slidably connected to the guide rods 10.

[0032] Example 3

[0033] like Figures 2-4 As shown, this utility model proposes a variable volume can structure. Compared with Embodiment 2, this embodiment describes the detailed structure of the limiting component. The limiting component includes a second screw 15, an adjusting handle 16, a rotating ring 17, and limiting rods 18. The second screw 15 is bearing-connected to the rotating cover 7. The second screw 15 and the rotating cover 7 have the same center. The adjusting handle 16 is threaded to the second screw 15. The rotating ring 17 is rotatably connected to the adjusting handle 16. Multiple limiting rods 18 are connected to the rotating ring 17. The limiting rods 18 are distributed circumferentially with the central axis of the rotating ring 17 as the center. The limiting rods 18 pass through the through holes on the rotating cover 7 and cooperate with the blind holes on the fixed cover 6.

[0034] In summary, in use, the user can open and seal the storage tank main body 1 through the threads provided in the inner wall of the fixed cover body 6 of the tank cover 2. After a part of the tea in the storage tank main body 1 is poured out, the air in the storage tank main body 1 increases. After the tank cover 2 and the storage tank main body 1 are closed, the rotating adjusting handle 16 is rotated to move away from the second screw rod 15 through the threads. The rotating ring 17 on the adjusting handle 16 moves to drive the limiting rod 18 to be pulled out from the rotating cover body 7 and the fixed cover body 6, so that the rotating cover body 7 is limited. At this time, the rotating cover body 7 is rotated, and the first screw rod 3 is synchronously rotated with the rotating cover body 7. The rotation of the first screw rod 3 makes the moving cylinder 4 and the sealing plate 5 move away from each other. The moving cylinder 4 drives the sealing plate 5 to move to the bottom of the storage tank main body 1. In the moving process, the sealing plate 5 can discharge the air in the storage tank main body 1 into the cavity formed by the sealing plate 5 and the fixed cover body 6 through the one-way valve 8, so as to reduce the air content on the side of the storage tank main body 1 filled with tea and slow down the oxidation speed. The air can be discharged through the air vent 12 when the fixed cover body 6 and the rotating cover body 7 coincide.

[0035] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A variable volume jar structure, characterized by, The utility model relates to a kind of storage tank, which comprises Storage tank body (1), which is detachably connected with a tank cover (2) adapted to the storage tank body (1); A volume adjusting assembly is connected to the tank cover (2), which includes a first screw (3), a moving cylinder (4), and a sealing plate (5). The first screw (3) is connected to the tank cover (2) at one end, and the other end of the first screw (3) is threadedly connected to the moving cylinder (4). The sealing plate (5) is connected to the moving cylinder (4). In the use state of the adjusting assembly, the first screw (3) rotates to drive the moving cylinder (4) and the sealing plate (5) away from the tank cover (2), and the volume of the accommodating cavity formed between the sealing plate (5) and the storage tank body (1) changes. A limiting assembly is connected to the tank cover (2). In the use state of the limiting assembly, the limiting end of the limiting assembly is vertically moved to be clamped with the tank cover (2), limiting the rotation of the first screw (3), so that the storage tank body (1) remains at a fixed volume.

2. A variable volume canister structure according to claim 1, wherein, The tank cover (2) is composed of a fixed cover body (6) and a rotating cover body (7). The fixed cover body (6) is detachably connected to the storage tank body (1), and the rotating cover body (7) is rotatably connected to the fixed cover body (6).

3. A variable volume canister structure according to claim 1, wherein, The volume adjusting assembly further comprises A one-way valve (8) is connected in a through hole formed in the sealing plate (5). A guide assembly is connected to the sealing plate (5). In the use state of the guide assembly, the moving end of the guide assembly moves synchronously with the sealing plate (5), and the sealing plate (5) rotates synchronously with the screw through the limitation of the multiple moving ends.

4. A variable volume canister structure according to claim 1, wherein Multiple grooves are formed in the outer wall of the sealing plate (5), and a sealing ring (9) is sleeved in each groove.

5. A variable volume canister structure according to claim 3, wherein The guide assembly comprises Multiple guide rods (10) are connected to the fixed cover body (6). Multiple guide cylinders (11) are connected to the mounting groove formed in the moving cylinder (4). The guide cylinder (11) is slidably connected to the guide rod (10).

6. A variable volume canister structure according to claim 2, wherein, Multiple air holes (12) are formed in the fixed cover body (6) and the rotating cover body (7). A filter screen (13) is connected to the air hole (12) of the rotating cover body (7).

7. A variable volume canister structure according to claim 1, wherein An observation window (14) is formed in the storage tank body (1).

8. A variable volume jar structure as claimed in claim 2, wherein, The limiting assembly comprises A second screw (15) is connected to the rotating cover body (7), and the second screw (15) has the same center as the rotating cover body (7). An adjusting handle (16) is threadedly connected to the second screw (15). A rotating ring (17) is rotatably connected to the adjusting handle (16). Multiple limiting rods (18) are connected to the rotating ring (17). The limiting rods (18) pass through the through holes in the rotating cover body (7) and cooperate with the blind holes in the fixed cover body (6).

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