Vacuum-pumping storage tank cover structure

Abstract

The utility model discloses a vacuumizing storage tank cover structure which is connected with a storage tank body and comprises a bottle cover, a sleeve, a sealing plug, a one-way valve, a spring, an upper cover and a small cover. A limiting convex ring and an abutting convex ring are arranged in the middle of the top face of the bottle cap, and an exhaust hole is formed in the bottle cap. A boss is arranged on the bottom face of the small cover, a piston ring groove is formed in the outer wall of the small cover, and an exhaust port is formed in the top wall of the piston ring groove. The spring is arranged between the small cap and the bottle cap; the one-way valve is arranged in the center of the top wall of the bottle cap, and the sealing plug is arranged on the top wall of the bottle cap and located between the limiting protruding ring and the abutting protruding ring. The novel storage tank is reasonable in structural arrangement, air in the storage tank can be pumped out through pressing operation of the small cover, the interior of the storage tank is guaranteed to be in a vacuum state, the storage time of objects in the storage tank is prolonged, the sealing plug is extruded and deformed through downward pressing and rotation of the small cover, external air enters the storage tank, opening operation is convenient, sealing effectiveness can be improved, and the service life of the storage tank is prolonged. And the use experience of the user can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of storage tanks, and in particular relates to a vacuum storage tank cover structure. Background Art

[0002] A storage tank is a common sealed storage structure, which generally includes a tank body and a tank cover, and a sealing ring is arranged at the connection between the tank cover and the tank body. Although the sealing ring can meet the general sealing operation, it cannot guarantee airtightness, that is, it cannot achieve a true sealing function. Therefore, after a long storage time, the liquid or solid in the storage tank is prone to moisture and deterioration. This is mainly due to the entry of external gas and water vapor into the storage tank. At the same time, the gas inside the tank body will also cause the items inside the storage tank to become damp and deteriorate. In the prior art, its sealing cannot be too strong. If it is too strong, the tank cover cannot be opened from the tank body, affecting the user experience. Therefore, the applicability and practicality are limited. Providing a storage tank cover with strong sealing and vacuum function, which can extend the storage time of items without affecting the user experience is a technical problem that technicians in this technical field need to solve. Summary of the invention

[0003] The utility model aims to provide a vacuum storage tank lid structure which has a reasonable structural arrangement and is conducive to improving sealing stability.

[0004] The technical solution to achieve the purpose of the utility model is a vacuum storage tank cover structure, which is connected to the storage tank body and includes a bottle cap, a sleeve, a sealing plug, a one-way valve, a spring, an upper cover and a small cover;

[0005] A limiting convex ring and a stop convex ring are arranged in the middle of the top surface of the bottle cap, and an exhaust hole is arranged on the bottle cap;

[0006] The bottom surface of the small cover is provided with a boss matched with the position of the sealing plug, the outer wall of the small cover is provided with a piston ring groove, and the top wall of the piston ring groove is provided with an exhaust port;

[0007] The sleeve is sleeved on the outer side of the limiting convex ring;

[0008] The small cover is arranged between the sleeve and the stop convex ring, the spring is arranged between the small cover and the bottle cap, and the small cover can be lifted and rotated outside the sleeve;

[0009] The one-way valve is arranged at the center of the top wall of the bottle cap, and the sealing plug is arranged on the top wall of the bottle cap and between the limiting convex ring and the resisting convex ring;

[0010] The upper cover is arranged between the outer side surface of the small cover and the bottle cap, and the upper cover is rigidly fixed to the bottle cap.

[0011] Further preferably, a limiting groove is arranged on the limiting convex ring, and a limiting convex block matching with the limiting groove is arranged on the sleeve;

[0012] A piston ring is arranged in the piston ring groove;

[0013] The outer side surface of the small cover is fitted on the inner surface of the positioning convex ring through a piston ring.

[0014] It is further preferred that: a sealing ring groove is provided on the bottle cap, and a sealing ring is provided in the sealing ring groove;

[0015] The inner wall of the storage tank body is sealed and connected to the bottle cap via a sealing ring.

[0016] It is further preferred that: L-shaped small cover movable grooves are respectively provided on the symmetrical outer walls of the sleeve;

[0017] A sealing plug baffle is fixed on the outer wall of the sleeve;

[0018] The inner wall of the small cover is provided with a movable guide block matched with the movable groove of the L-shaped small cover;

[0019] The movable guide block of the small cover is arranged in the L-shaped small cover movable groove, and the sealing plug baffle is located above the sealing plug;

[0020] The boss of the small cover is located on the side of the sealing plug baffle;

[0021] The small cover is lifted and rotated in the L-shaped small cover movable groove of the sleeve, so that the side surface of the boss is pressed against the side surface of the sealing plug to squeeze and deform the sealing plug.

[0022] More preferably, the boss is a C-shaped boss.

[0023] Further preferably, a one-way valve assembly hole is provided at the center of the bottle cap, and the exhaust hole is located around the one-way valve assembly hole;

[0024] The bottle cap is provided with a sealing plug assembly hole, and the sealing plug assembly hole is located outside the limiting convex ring;

[0025] The one-way valve is arranged in the one-way valve assembly hole, and the sealing plug is arranged in the sealing plug assembly hole.

[0026] It is further preferred that: a buckle protrusion is provided on the upper portion of the outer wall of the limiting convex ring;

[0027] A buckle convex ring is arranged at the middle of the outer wall of the sleeve;

[0028] The sleeve is provided with a limiting protrusion matched with the limiting groove, the sleeve is sleeved on the outer side of the limiting convex ring, and the buckle convex ring is buckled on the buckle protrusion to position.

[0029] Further preferably, an exhaust indication mark is fixed on the top of the small cover.

[0030] More preferably, the number of the exhaust holes is three or four, and the number of the exhaust ports is three or four.

[0031] Further preferably, the height of the limiting convex ring is smaller than the height of the resisting convex ring.

[0032] The working principle is briefly described as follows: when the bottle cap storage tank is closed, since the small cover is sealed with a piston ring and a sealing ring, when the indicator mark on the top of the small cover is in the exhaust state, the small cover is squeezed downward, and moves downward together with the piston ring. The gas inside the small cover is compressed and discharged from the exhaust port opened on the side of the small cover. At the same time, the spring is squeezed and deformed. When the external force of the small cover disappears, the spring resets the small cover to move upward. At this time, due to the negative pressure inside the small cover, the gas in the storage tank is discharged from the exhaust hole in the middle of the bottle cap. The small cover reciprocates up and down. As the air in the storage tank is gradually extracted, a vacuum state is formed inside the storage tank, achieving a sealing effect.

[0033] When it is necessary to take out the items in the storage tank, first change the vacuum negative pressure state in the storage tank to a normal pressure state. During the specific operation, press down the small cover and then rotate it. The indicator mark of the small cover is in the exhaust position. At this time, the boss at the bottom of the small cover is squeezed on the sealing plug. The sealing plug is deformed after being squeezed, causing external airflow to enter the storage tank from the sealing plug assembly hole, so that the air pressure inside and outside the storage tank is balanced. At this time, the bottle cap of the storage tank can be easily opened.

[0034] The utility model has positive effects: the structure of the utility model is reasonably arranged, and the air inside the storage tank can be extracted by pressing the small cover, which can not only evacuate the interior of the storage tank to ensure that the interior is in a vacuum state, thereby extending the preservation time of the contents in the storage tank, but also when the storage tank needs to be opened, the sealing plug can be squeezed and deformed by pressing down and rotating the small cover, so that external air can enter the storage tank, making the air pressure inside and outside the storage tank the same, facilitating the opening operation, and making the operation more convenient. It can not only improve the sealing effectiveness and help improve the sealing stability, but also improve the user experience, and has strong applicability and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to make the content of the utility model easier to understand, the utility model is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein:

[0036] Figure 1 It is a structural schematic diagram of the utility model;

[0037] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0038] Figure 3 This is a cross-sectional diagram showing the vacuum state in the utility model;

[0039] Figure 4 This is a cross-sectional diagram showing the air intake state in the utility model;

[0040] Figure 5 This is a schematic diagram of the specific structure of the bottle cap in the utility model;

[0041] Figure 6 for Figure 5 A schematic diagram of a cross-sectional structure;

[0042] Figure 7 It is a schematic diagram of the specific structure of the small cover of the utility model;

[0043] Figure 8 It is a schematic diagram of the specific structure of the sleeve in the utility model.

[0044] Figure numerals: storage tank body 1, bottle cap 2, sleeve 3, sealing plug 4, one-way valve 5, spring 6, upper cover 7, small cover 8, limiting convex ring 9, resisting convex ring 10, exhaust hole 11, limiting groove 12, boss 13, piston ring groove 14, exhaust port 15, piston ring 16, sealing ring groove 17, sealing ring 18, L-shaped small cover movable groove 19, sealing plug baffle 20, movable guide block 21, one-way valve assembly hole 22, sealing plug assembly hole 23, buckle protrusion 24, buckle convex ring 25, exhaust indication mark 26, limiting protrusion 27. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0046] See Figures 1 to 8As shown, a vacuum storage tank cover structure is connected to the storage tank body 1, including a bottle cap 2, a sleeve 3, a sealing plug 4, a one-way valve 5, a spring 6, an upper cover 7 and a small cover 8; in this embodiment, and during the processing, a limiting convex ring 9 and a stop convex ring 10 are provided in the middle of the top surface of the bottle cap. In actual application, the diameter of the stop convex ring is larger than the diameter of the limiting convex ring, and the height of the limiting convex ring is smaller than the height of the stop convex ring. At the same time, an exhaust hole 11 is provided on the bottle cap, and the exhaust holes are three or four, and a limiting card slot 12 is provided on the limiting convex ring; the limiting card slot is mainly used to cooperate with the limiting convex block 27 in the sleeve to achieve installation limit, and its exhaust hole cooperates with the one-way valve to achieve one-way exhaust.

[0047] Meanwhile, during the processing, the bottom surface of the small cover is provided with a boss 13 which matches the position of the sealing plug. In actual application, the boss is a C-shaped boss. Thus, when the sealing plug is pressed down, the sealing plug can be deformed to connect the inside and outside of the storage tank.

[0048] The outer wall of the small cover is provided with a piston ring groove 14, and the top wall of the piston ring groove is provided with an exhaust port 15; the exhaust ports are three or four. During installation, a piston ring 16 is provided in the piston ring groove; the outer side surface of the small cover is attached to the inner surface of the positioning convex ring through the piston ring. Its piston ring can discharge the internal gas from the exhaust port when the small cover is raised or lowered to achieve a vacuum operation. At the same time, during installation, a limiting convex block matching with the limiting card groove is provided on the sleeve, and the sleeve is sleeved on the outer side of the limiting convex ring; the small cover is arranged between the sleeve and the positioning convex ring, and the spring is arranged between the small cover and the bottle cap, and the small cover can be raised or lowered and rotated on the outer side of the sleeve; the one-way valve is arranged at the center of the top wall of the bottle cap, and the sealing plug is arranged on the top wall of the bottle cap and is between the limiting convex ring and the positioning convex ring; the upper cover is arranged between the outer side surface of the small cover and the bottle cap, and the upper cover is rigidly fixed to the bottle cap.

[0049] In actual application, the bottle cap is provided with a sealing ring groove 17, and a sealing ring 18 is provided in the sealing ring groove; the inner wall of the storage tank body is sealed and connected to the bottle cap through the sealing ring. Through the above structure, the sealing of the connection between the storage tank body and the bottle cap can be ensured, so that when vacuuming, the internal sealing effectiveness and reliability can be ensured.

[0050] In actual application, L-shaped small cover movable grooves 19 are respectively provided on the symmetrical outer walls of the sleeve; and a sealing plug baffle 20 is fixed on the outer wall of the sleeve; a movable guide block 21 matching the L-shaped small cover movable groove is provided on the inner wall of the small cover; the movable guide block of the small cover is arranged in the L-shaped small cover movable groove, and the sealing plug baffle is located above the sealing plug; the boss of the small cover is located on the side of the sealing plug baffle; when in use, the small cover is lifted and rotated in the L-shaped small cover movable groove of the sleeve, so that the side of the boss is pressed against the side of the sealing plug to squeeze and deform the sealing plug.

[0051] Moreover, in this embodiment, a one-way valve assembly hole 22 is provided at the center of the bottle cap, and the exhaust hole is located around the one-way valve assembly hole; a sealing plug assembly hole 23 is provided on the bottle cap, and the sealing plug assembly hole is located outside the limiting convex ring; the one-way valve is arranged in the one-way valve assembly hole, and the sealing plug is arranged in the sealing plug assembly hole. Through the above structure, the installation convenience of the one-way valve and the sealing plug can be improved. In this embodiment, the one-way valve is a conventional structure of the prior art, so it is not described in detail. At the same time, the cross-section of the sealing plug is an n-shaped sealing plug body. During extrusion, the sealing plug can be deformed, so that the sealing plug assembly hole can be conducted, and the air pressure inside and outside the storage tank can be balanced.

[0052] In actual application, a buckle protrusion 24 is provided on the upper part of the outer wall of the limiting convex ring; a buckle protrusion 25 is provided on the middle part of the outer wall of the sleeve; during installation, a limiting convex block matching with the limiting groove is provided on the sleeve, the sleeve is sleeved on the outer side of the limiting convex ring, and the buckle protrusion is buckled on the buckle protrusion for positioning. Through the above structure, the stability of the connection between the two can be ensured to prevent loosening or falling off.

[0053] And in the actual application process, the top of the small cover is fixed with an exhaust indication mark 26. It indicates the position corresponding to the exhaust, which is convenient for operators to judge.

[0054] The installation method is as follows: the first step is to install the one-way valve and the sealing plug on the bottle cap; the second step is to buckle the buckle convex ring of the sleeve on the buckle convexity in the middle of the bottle cap and fix it; the third step is to place the spring in the middle of the sleeve; the fourth step is to put the piston ring in the piston ring groove of the small cover and place it above the spring; the fifth step is to pass the middle round hole of the upper cover through the small cover, cover the upper cover on the upper part of the bottle cap, and fix the upper cover to the bottle cap by ultrasonic wave; the sixth step is to put the sealing ring on the bottom of the bottle cap and cover the mouth of the storage tank to complete the installation.

[0055] The working principle is briefly described as follows: when the bottle cap storage tank is closed, since the small cover is sealed with a piston ring and a sealing ring, when the indicator mark on the top of the small cover is in the exhaust state, the small cover is squeezed downward, and moves downward together with the piston ring. The gas inside the small cover is compressed and discharged from the exhaust port opened on the side of the small cover. At the same time, the spring is squeezed and deformed. When the external force of the small cover disappears, the spring resets the small cover to move upward. At this time, due to the negative pressure inside the small cover, the gas in the storage tank is discharged from the exhaust hole in the middle of the bottle cap. The small cover reciprocates up and down. As the air in the storage tank is gradually extracted, a vacuum state is formed inside the storage tank, achieving a sealing effect.

[0056] When it is necessary to take out the items in the storage tank, first change the vacuum negative pressure state in the storage tank to a normal pressure state. During the specific operation, press down the small cover and then rotate it. The indicator mark of the small cover is in the exhaust position. At this time, the boss at the bottom of the small cover is squeezed on the sealing plug. The sealing plug is deformed after being squeezed, causing external airflow to enter the storage tank from the sealing plug assembly hole, so that the air pressure inside and outside the storage tank is balanced. At this time, the bottle cap of the storage tank can be easily opened.

[0057] The utility model has positive effects: the structure of the utility model is reasonably arranged, and the air inside the storage tank can be extracted by pressing the small cover, which can not only evacuate the interior of the storage tank to ensure that the interior is in a vacuum state, thereby extending the preservation time of the contents in the storage tank, but also when the storage tank needs to be opened, the sealing plug can be squeezed and deformed by pressing down and rotating the small cover, so that external air can enter the storage tank, making the air pressure inside and outside the storage tank the same, facilitating the opening operation, and making the operation more convenient. It can not only improve the sealing effectiveness and help improve the sealing stability, but also improve the user experience, and has strong applicability and good practicality.

[0058] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification can also be directly processed according to existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0059] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still belong to the protection scope of the present invention.

Claims

1. A vacuum storage tank cover structure, connected to the storage tank body, characterized in that: It includes a bottle cap, a sleeve, a sealing plug, a one-way valve, a spring, an upper cover and a small cover; A limiting convex ring and a stop convex ring are arranged in the middle of the top surface of the bottle cap, and an exhaust hole is arranged on the bottle cap; The bottom surface of the small cover is provided with a boss matched with the position of the sealing plug, the outer wall of the small cover is provided with a piston ring groove, and the top wall of the piston ring groove is provided with an exhaust port; The sleeve is sleeved on the outer side of the limiting convex ring; The small cover is arranged between the sleeve and the stop convex ring, the spring is arranged between the small cover and the bottle cap, and the small cover can be lifted and rotated outside the sleeve; The one-way valve is arranged at the center of the top wall of the bottle cap, and the sealing plug is arranged on the top wall of the bottle cap and between the limiting convex ring and the resisting convex ring; The upper cover is arranged between the outer side surface of the small cover and the bottle cap, and the upper cover is rigidly fixed to the bottle cap.

2. The vacuum storage tank cover structure according to claim 1, characterized in that: The limiting convex ring is provided with a limiting slot, and the sleeve is provided with a limiting convex block matched with the limiting slot; A piston ring is arranged in the piston ring groove; The outer side surface of the small cover is fitted on the inner surface of the positioning convex ring through a piston ring.

3. The vacuum storage tank cover structure according to claim 2, characterized in that: The bottle cap is provided with a sealing ring groove, and a sealing ring is provided in the sealing ring groove; The inner wall of the storage tank body is sealed and connected to the bottle cap via a sealing ring.

4. The vacuum storage tank cover structure according to claim 3, characterized in that: The symmetrical outer walls of the sleeve are respectively provided with L-shaped small cover movable grooves; A sealing plug baffle is fixed on the outer wall of the sleeve; The inner wall of the small cover is provided with a movable guide block matched with the movable groove of the L-shaped small cover; The movable guide block of the small cover is arranged in the L-shaped small cover movable groove, and the sealing plug baffle is located above the sealing plug; The boss of the small cover is located on the side of the sealing plug baffle; The small cover is lifted and rotated in the L-shaped small cover movable groove of the sleeve, so that the side surface of the boss is pressed against the side surface of the sealing plug to squeeze and deform the sealing plug.

5. The vacuum storage tank cover structure according to claim 4, characterized in that: The boss is a C-shaped boss.

6. The vacuum storage tank cover structure according to claim 1, characterized in that: A one-way valve assembly hole is provided at the center of the bottle cap, and the exhaust hole is located around the one-way valve assembly hole; The bottle cap is provided with a sealing plug assembly hole, and the sealing plug assembly hole is located outside the limiting convex ring; The one-way valve is arranged in the one-way valve assembly hole, and the sealing plug is arranged in the sealing plug assembly hole.

7. The vacuum storage tank cover structure according to claim 2, characterized in that: A buckle protrusion is arranged on the upper part of the outer wall of the limiting convex ring; A buckle convex ring is arranged at the middle of the outer wall of the sleeve; The sleeve is provided with a limiting protrusion matched with the limiting groove, the sleeve is sleeved on the outer side of the limiting convex ring, and the buckle convex ring is buckled on the buckle protrusion to position.

8. The vacuum storage tank cover structure according to claim 1, characterized in that: An exhaust indication mark is fixed on the top of the small cover.

9. The vacuum storage tank cover structure according to claim 1, characterized in that: The number of the exhaust holes is three or four, and the number of the exhaust ports is three or four.

10. The vacuum storage tank cover structure according to claim 1, characterized in that: The height of the limiting convex ring is smaller than the height of the abutting convex ring.

Images