Storage tank sealing device

Abstract

The utility model discloses a storage tank sealing device, and relates to the technical field of storage tank sealing. The storage tank sealing device comprises a sealing cover and a limiting structure, the top of the sealing cover is fixedly connected with a sealing cover flange, the limiting structure comprises a rotating wheel, a round rod, a second limiting ring, a first circular ring and a second circular ring, the round rod is slidably connected into the sealing cover, the rotating wheel is fixedly connected to the top of the round rod, and the outer surface of the round rod is fixedly sleeved with the second limiting ring. A second circular ring fixedly sleeves the outer surface of a round rod, a rotating wheel is pressed downwards to enable the first circular ring and the second circular ring to move downwards, at the moment, a clamping plate extends to the position below a tank opening of the storage tank, then the rotating wheel is rotated to drive the round rod and the second circular ring to rotate, and the second circular ring drives a moving column to move; and the clamping plate rotates and is matched with the inner wall of the storage tank to tightly fix the sealing cover in the storage tank, so that the problem of loosening of the cover body possibly caused by the change of internal air pressure due to factors such as temperature change and the like can be avoided, and the sealing effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tank sealing, in particular to a storage tank sealing device. Background Art

[0002] Chemical storage tanks are tanks used to store chemicals. Some chemicals stored in chemical storage tanks are volatile or have unpleasant odors. If the chemical storage tanks are not well sealed, it will have a certain impact or even harm the chemicals stored in the chemical storage tanks or the surrounding environment.

[0003] Most of the existing sealing covers achieve sealing effect by matching the rubber sealing ring on the outer wall with the rubber sealing ring on the inner wall of the tank mouth. However, due to factors such as temperature changes, the internal air pressure changes, which may cause the cover to loosen and fail to achieve a stable sealing effect. Therefore, a tank sealing device is needed. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a tank sealing device that can solve the problem that due to factors such as temperature changes, the internal air pressure changes, which may cause the cover to loosen and fail to achieve a stable sealing effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a storage tank sealing device, including a sealing cover and a limiting structure, the top of the sealing cover is fixedly connected with a sealing cover rib, the limiting structure includes a rotating wheel, a round rod, a second limiting ring, a first circular ring and a second circular ring, the circular rod is slidably connected to the inside of the sealing cover, the rotating wheel is fixedly connected to the top of the round rod, the second limiting ring is fixedly sleeved on the outer surface of the round rod, the second circular ring is fixedly sleeved on the outer surface of the round rod, the first circular ring is slidably connected to the round rod, and the first circular ring is located between the second limiting ring and the second circular ring.

[0006] Preferably, the limiting structure also includes a movable column, a card plate, a positioning rod and a limiting groove, the movable column is fixedly connected to the bottom of the second ring, the positioning rod is fixedly connected to the bottom of the first ring, the card plate is rotatably sleeved on the outer surface of the positioning rod, the limiting groove is opened on the surface of the card plate, and the movable column is slidably connected to the limiting groove.

[0007] Preferably, a limiting column is fixedly connected to the top of the first ring, the limiting column is slidably connected to the sealing cover, and a sliding groove adapted to the limiting column is provided inside the sealing cover.

[0008] Preferably, a limiting ring 1 is fixedly sleeved on the outer surface of the round rod, the limiting ring 1 is slidably connected to the sealing cover, a spring is fixedly connected to the bottom of the limiting ring 1, and the bottom of the spring is fixedly connected to the sealing cover.

[0009] Preferably, the outer surface of the round rod is fixedly connected to a limiting block.

[0010] Preferably, a plurality of rubber sealing strips are fixedly connected to the outer surface of the sealing cover, a storage tank is provided at the bottom of the sealing cover, and a sealing groove adapted to the rubber sealing strips is provided on the inner wall of the storage tank.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The tank sealing device presses the rotating wheel downward to move the first and second rings downward. At this time, the clamping plate extends to the bottom of the tank mouth. The rotating wheel is then turned to drive the round rod and the second ring to rotate. The second ring drives the moving column to move, so that the clamping plate rotates and cooperates with the inner wall of the tank to tightly fix the sealing cover inside the tank. This can avoid the problem of the cover body loosening due to changes in internal air pressure caused by temperature changes, etc., strengthen the sealing effect, and ensure the quality of the material inside the tank.

[0013] (2) The tank sealing device can generate an upward force on the round rod through the action of the spring, so that the card plate can always be close to the tank, thereby enhancing the fixing effect. When the card plate is rotated to a suitable position, the limit block can stop the rotation of the round rod, making it easier to operate the rotating wheel to extend the card plate to the maximum distance, making it more convenient to use. The sealing effect can be enhanced by multiple rubber sealing strips and sealing grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the main body of the utility model;

[0016] Figure 2 It is a schematic diagram of the limiting structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the interior of the sealing cover of the utility model.

[0018] Figure numerals: 1. Sealing cover; 2. Sealing cover rib; 3. Rotor; 4. Rubber sealing strip; 5. Storage tank; 6. Sealing groove; 7. Round rod; 8. Limit block; 9. Limit ring one; 10. Spring; 11. Limit ring two; 12. First circular ring; 13. Second circular ring; 14. Limit column; 15. Moving column; 16. Clamp plate; 17. Positioning rod; 18. Limit groove. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0020] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] See also Figure 1-3 The utility model provides a technical solution: a storage tank sealing device, including a sealing cover 1 and a limiting structure, the top of the sealing cover 1 is fixedly connected with a sealing cover rib 2, the bottom of the sealing cover 1 is provided with a storage tank 5, the limiting structure includes a rotating wheel 3, a round rod 7, a limiting ring 11, a first circular ring 12 and a second circular ring 13, the circular rod 7 is slidably connected to the inside of the sealing cover 1, the rotating wheel 3 is fixedly connected to the top of the round rod 7, the limiting ring 11 is fixedly sleeved on the outer surface of the round rod 7, the second circular ring 13 is fixedly sleeved on the outer surface of the round rod 7, the first circular ring 12 is slidably connected to the round rod 7, and the first circular ring 12 is located between the limiting ring 11 and the second circular ring 13.

[0024] Furthermore, the limiting structure also includes a moving column 15, a card plate 16, a positioning rod 17 and a limiting groove 18. The moving column 15 is fixedly connected to the bottom of the second ring 13, the positioning rod 17 is fixedly connected to the bottom of the first ring 12, the card plate 16 is rotatably sleeved on the outer surface of the positioning rod 17, and the limiting groove 18 is opened on the surface of the card plate 16. The moving column 15 is slidably connected with the limiting groove 18. The sealing cover 1 is placed on the inner wall of the storage tank 5. The rubber sealing strip 4 on the outer wall of the sealing cover 1 and the sealing groove 6 on the storage tank 5 cooperate to achieve a sealing effect. In order to avoid The sealing cover is loosened, and the wheel 3 is pressed downward to move the first ring 12 and the second ring 13 downward. At this time, the clamping plate 16 extends to the bottom of the tank mouth of the storage tank 5, and then the wheel 3 is rotated to drive the round rod 7 and the second ring 13 to rotate, and the second ring 13 drives the moving column 15 to move, so that the clamping plate 16 rotates and cooperates with the inner wall of the storage tank 5 to tightly fix the sealing cover 1 inside the storage tank 5, which can avoid the problem of loosening of the cover body due to changes in internal air pressure due to factors such as temperature changes, strengthen the sealing effect, and ensure the quality of the material inside the storage tank.

[0025] Furthermore, the top of the first circular ring 12 is fixedly connected to a limiting column 14, the limiting column 14 is slidably connected to the sealing cover 1, and a sliding groove adapted to the limiting column 14 is provided inside the sealing cover 1. The outer surface of the round rod 7 is fixedly sleeved with a limiting ring 9, the limiting ring 9 is slidably connected to the sealing cover 1, and the bottom of the limiting ring 9 is fixedly connected to a spring 10, and the bottom of the spring 10 is fixedly connected to the sealing cover 1. The outer surface of the round rod 7 is fixedly connected to the limiting block 8, and the round rod 7 can be generated by the action of the spring 10. The force on the card plate 16 can always be close to the storage tank 5 to enhance the fixing effect. The limiting column 14 can limit the movement of the first ring 12 so that it can only move up and down and does not rotate with the second ring 13. The limiting block 8 can limit the rotation of the round rod 7. A card slot adapted to the limiting block 8 is provided inside the sealing cover 1. When the card plate 16 is rotated to a suitable position, the limiting block 8 can stop the rotation of the round rod 7, making it easier to operate the rotating wheel 3 to extend the card plate 16 to the maximum distance, which is more convenient to use.

[0026] Secondly, a plurality of rubber sealing strips 4 are fixedly connected to the outer surface of the sealing cover 1, and a sealing groove 6 adapted to the rubber sealing strip 4 is opened on the inner wall of the storage tank 5. The sealing effect can be enhanced by the plurality of rubber sealing strips 4 and the sealing groove 6.

[0027] Working principle: put the sealing cover 1 into the inner wall of the storage tank 5, and the rubber sealing strip 4 on the outer wall of the sealing cover 1 cooperates with the sealing groove 6 on the storage tank 5 to achieve a sealing effect. To prevent the sealing cover from loosening, press the rotating wheel 3 downward to move the first circular ring 12 and the second circular ring 13 downward. At this time, the card plate 16 extends to the bottom of the tank mouth of the storage tank 5, and then rotate the rotating wheel 3 to drive the round rod 7 and the second circular ring 13 to rotate, and the second circular ring 13 drives the moving column 15 to move, so that the card plate 16 rotates and cooperates with the inner wall of the storage tank 5 to tightly fix the sealing cover 1 inside the storage tank 5. When the card plate 16 rotates to a suitable position, the limit block 8 can stop the rotation of the circular rod 7, making it easier to operate the rotating wheel 3 to extend the card plate 16 to the maximum distance, which is more convenient to use.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A tank sealing device, characterized in that: include: A sealing cover (1), the top of which is fixedly connected with a sealing cover retaining edge (2); The limiting structure comprises a rotating wheel (3), a round rod (7), a second limiting ring (11), a first circular ring (12) and a second circular ring (13); the circular rod (7) is slidably connected to the inside of the sealing cover (1); the rotating wheel (3) is fixedly connected to the top of the round rod (7); the second limiting ring (11) is fixedly sleeved on the outer surface of the round rod (7); the second circular ring (13) is fixedly sleeved on the outer surface of the round rod (7); the first circular ring (12) is slidably connected to the round rod (7); and the first circular ring (12) is located between the second limiting ring (11) and the second circular ring (13).

2. A storage tank sealing device according to claim 1, characterized in that: The limiting structure also includes a moving column (15), a clamping plate (16), a positioning rod (17) and a limiting groove (18); the moving column (15) is fixedly connected to the bottom of the second circular ring (13); the positioning rod (17) is fixedly connected to the bottom of the first circular ring (12); the clamping plate (16) is rotatably sleeved on the outer surface of the positioning rod (17); the limiting groove (18) is provided on the surface of the clamping plate (16); and the moving column (15) is slidably connected to the limiting groove (18).

3. A storage tank sealing device according to claim 2, characterized in that: The top of the first circular ring (12) is fixedly connected to a limiting column (14), the limiting column (14) is slidably connected to the sealing cover (1), and a sliding groove adapted to the limiting column (14) is provided inside the sealing cover (1).

4. A storage tank sealing device according to claim 3, characterized in that: A limiting ring (9) is fixedly sleeved on the outer surface of the round rod (7), the limiting ring (9) is slidably connected to the sealing cover (1), the bottom of the limiting ring (9) is fixedly connected to a spring (10), and the bottom of the spring (10) is fixedly connected to the sealing cover (1).

5. A storage tank sealing device according to claim 4, characterized in that: The outer surface of the round rod (7) is fixedly connected to a limiting block (8).

6. A storage tank sealing device according to claim 5, characterized in that: The outer surface of the sealing cover (1) is fixedly connected with a plurality of rubber sealing strips (4), the bottom of the sealing cover (1) is provided with a storage tank (5), and the inner wall of the storage tank (5) is provided with a sealing groove (6) adapted to the rubber sealing strips (4).

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