Sealing mechanism of storage tank

Abstract

The utility model discloses a sealing mechanism of a storage tank in the technical field of storage tank sealing, which comprises a tank body, a tank opening arranged on the upper side of the tank body, a cap movably sleeved on the outer side of the tank opening, an air bag arranged on the inner side of the cap, a sealing groove arranged on the outer side of the tank opening and butted with the air bag, and a mounting block fixedly arranged on the outer side of the cap. An air pump is fixedly arranged on the upper side of the mounting block, a connecting pipe is fixedly arranged on the outer side of the air pump, the connecting pipe penetrates through the cap and extends to the inner side, and the part, located on the inner side of the cap, of the outer side end of the connecting pipe is fixedly connected to the air bag; a sealing plate in butt joint with the first sealing gasket fixedly sleeves the part, located on the outer side of the tank opening, of the upper side of the tank body. By means of the simple installation structure, the tank opening can be sealed conveniently, the sealing effect of the tank opening is improved, the potential safety hazard that chemical substances leak is avoided, the practical effect is good, and the tank opening sealing device is worthy of being used and popularized in the existing market.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tank sealing, and more specifically to a sealing mechanism for a storage tank. Background Art

[0002] Storage tanks are used to store refined chemical substances such as acids, alkalis, alcohols, gases, and liquids. Storage tanks are widely used in North China. According to different materials, there are generally: polyethylene tanks, polypropylene tanks, fiberglass tanks, ceramic tanks, rubber tanks, stainless steel tanks, etc.

[0003] When a storage tank is in use, in order to improve the sealing of the tank mouth, a sealing cover is generally installed on the tank mouth. The main components of the sealing cover are the metal cover and the sealing gasket. The tank mouth is sealed by the sealing gasket, and then the sealing cover will cause wear to the sealing gasket during the continuous opening and closing process. Once the sealing gasket is worn, its sealing effect will be greatly reduced, which may easily cause leakage of chemical substances in the storage tank, and there are certain safety hazards in its use.

[0004] In view of this, we propose a sealing mechanism for a storage tank. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model aims to provide a sealing mechanism for a storage tank, so as to solve the problem in the above background technology that the existing storage tank is tightly sealed by a sealing gasket, and when the sealing gasket is worn, it is easy to cause leakage of chemical substances, posing a safety hazard.

[0007] 2. Technical solution

[0008] A sealing mechanism for a storage tank comprises a tank body, a tank mouth is arranged on the upper side of the tank body, a cover cap is movably provided on the outer side of the tank mouth, an air bag is arranged on the inner side of the cover cap, and a sealing groove for docking with the air bag is opened on the outer side of the tank mouth, a mounting block is fixedly provided on the outer side of the cover cap, an air pump is fixedly provided on the upper side of the mounting block, a connecting pipe is fixedly provided on the outer side of the air pump, the connecting pipe passes through the cover cap and extends to the inner side, and the outer end of the connecting pipe is located at the inner part of the cover cap and is fixedly connected to the air bag, a first sealing gasket is fixedly provided on the lower side of the cover cap, and a sealing plate for docking with the first sealing gasket is fixedly provided on the upper side of the tank body located at the outer side of the tank mouth.

[0009] Preferably, a second sealing gasket docking with the tank opening is fixedly provided on the inner side of the cap.

[0010] Preferably, a fixing frame is fixedly provided on the upper side of the tank body, a threaded rod is rotatably provided on the inner side of the fixing frame, a movable block is threadedly sleeved on the outer side of the threaded rod, the movable block movably passes through the fixing frame and extends to the outside, and a connecting rod is fixedly provided on the lower side of the movable block at the outer side of the fixing frame, and the other end of the connecting rod is fixedly connected to the cap.

[0011] Preferably, a mounting plate is fixedly provided on the upper side of the fixed frame, a motor is fixedly provided on the upper side of the mounting plate, a rotating rod is fixedly provided on the power end of the motor, a first bevel gear is fixedly provided on the outer end of the rotating rod, the threaded rod movably passes through the fixed frame and extends to the upper side, and a second bevel gear is fixedly provided on the upper end of the threaded rod located on the upper part of the fixed frame, and the second bevel gear is meshed with the first bevel gear.

[0012] Preferably, a limiting groove for docking the movable block is provided on the inner side of the fixed frame, and the movable block slides within the limiting groove.

[0013] Preferably, a discharge pipe is fixedly provided on the outside of the tank body.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. The utility model is provided with a cap, an air bag, an air pump, a connecting pipe, a sealing groove, a first sealing gasket, a sealing plate, a second sealing gasket and other mechanisms, and through the mutual cooperation of various mechanisms, it is convenient to seal the tank mouth, improve the sealing effect of the tank mouth, thereby avoiding the safety hazard of leakage of chemical substances.

[0017] 2. The utility model provides a fixed frame, a threaded rod, a movable block, a connecting rod, a motor, a rotating rod, a first bevel gear, a second bevel gear and other mechanisms, and through the mutual cooperation of various mechanisms, it is convenient to load and unload the cap, while improving the convenience of use, avoiding excessive wear on the sealing gasket, thereby ensuring the sealing effect of the sealing gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a side view of the structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 4 For this utility model Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0022] Explanation of the numbers in the figure: 1 tank body, 2 tank mouth, 3 cover cap, 4 airbag, 5 mounting block, 6 air pump, 7 connecting pipe, 8 sealing groove, 9 first sealing gasket, 10 sealing plate, 11 second sealing gasket, 12 fixing frame, 13 threaded rod, 14 movable block, 15 connecting rod, 16 mounting plate, 17 motor, 18 rotating rod, 19 first bevel gear, 20 second bevel gear, 21 limiting groove. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] See also Figure 1-4 ,The utility model provides a technical solution:

[0027] A sealing mechanism for a storage tank comprises a tank body 1, a tank mouth 2 is arranged on the upper side of the tank body 1, a cover cap 3 is movably sleeved on the outer side of the tank mouth 2, an air bag 4 is arranged on the inner side of the cover cap 3, and a sealing groove 8 for docking with the air bag 4 is opened on the outer side of the tank mouth 2, a mounting block 5 is fixedly arranged on the outer side of the cover cap 3, an air pump 6 is fixedly arranged on the upper side of the mounting block 5, a connecting pipe 7 is fixedly arranged on the outer side of the air pump 6, the connecting pipe 7 passes through the cover cap 3 and extends to the inner side, and the outer end of the connecting pipe 7 is located at the inner side of the cover cap 3 and is fixedly connected to the air bag 4, a first sealing gasket 9 is fixedly arranged on the lower side of the cover cap 3, a sealing plate 10 for docking with the first sealing gasket 9 is fixedly sleeved on the outer side of the tank mouth 2 on the upper side of the tank body 1, and an air release valve is arranged on the outer side of the connecting pipe 7 on the outer side of the cover cap 3, the air bag 4 is inflated by the air pump 6, the size of the air bag 4 can be conveniently adjusted, so that the tank mouth 2 can be better sealed while the cap 3 is conveniently loaded and unloaded, thereby improving the sealing effect of the tank mouth 2.

[0028] Specifically, a second sealing gasket 11 that docks with the tank mouth 2 is fixedly disposed on the inner side of the cover cap 3 . The second sealing gasket 11 can seal the opening of the tank mouth 2 , thereby further improving the sealing effect of the tank mouth 2 .

[0029] Furthermore, a fixed frame 12 is fixedly provided on the upper side of the tank body 1, a threaded rod 13 is rotatably provided on the inner side of the fixed frame 12, a movable block 14 is threadedly sleeved on the outer side of the threaded rod 13, the movable block 14 movably passes through the fixed frame 12 and extends to the outside, and a connecting rod 15 is fixedly provided on the lower side of the movable block 14 located on the outer side of the fixed frame 12, the other end of the connecting rod 15 is fixedly connected to the cap 3, and the movable block 14 is threadedly sleeved on the outer side of the threaded rod 13, thereby ensuring the installation stability of the movable block 14, thereby improving the installation stability of the cap 3.

[0030] It is worth mentioning that a mounting plate 16 is fixedly provided on the upper side of the fixed frame 12, a motor 17 is fixedly provided on the upper side of the mounting plate 16, a rotating rod 18 is fixedly provided on the power end of the motor 17, a first bevel gear 19 is fixedly provided on the outer end of the rotating rod 18, the threaded rod 13 movably passes through the fixed frame 12 and extends to the upper side, and a second bevel gear 20 is fixedly provided on the upper end of the threaded rod 13 located on the upper part of the fixed frame 12, the second bevel gear 20 is meshed with the first bevel gear 19, and turning on the motor 17 by an external power supply can conveniently drive the rotating rod 18 and the first bevel gear 19 to rotate, and the rotation of the first bevel gear 19 can drive the second bevel gear 20 to rotate, and the rotation of the second bevel gear 20 can drive the threaded rod 13 to rotate, thereby conveniently driving the movable block 14 and the cap 3 to move, and by adjusting the power end of the motor 17 to rotate in different directions, the movable block 14 can be driven to move upward or downward, thereby facilitating the installation or removal of the cap 3.

[0031] It is worth noting that a limiting groove 21 for docking the movable block 14 is opened on the inner side of the fixed frame 12. The movable block 14 slides in the limiting groove 21. The limiting groove 21 can limit the movable block 14, so that when the threaded rod 13 rotates, it can drive the movable block 14 to move vertically up and down, thereby facilitating the movement of the cap 3.

[0032] In addition, a discharge pipe is fixedly provided on the outside of the tank body 1. The discharge pipe can facilitate the discharge of the tank body 1, thereby avoiding frequent opening of the cap 3 for discharge, which causes wear of the first sealing gasket 9 and the second sealing gasket 11, thereby improving the service life of the first sealing gasket 9 and the second sealing gasket 11.

[0033] Working principle: After the chemical substances are placed inside the tank body 1, the motor 17 is turned on by an external power supply to drive the threaded rod 13 to rotate. At this time, the movable block 14 sleeved on the outside of the threaded rod 13 moves downward along the threaded rod 13 under the limiting action of the limiting groove 21. When the movable block 17 moves, it drives the connecting rod 15 and the cap 3 to move, so that the cap 3 is sleeved on the outside of the tank mouth 2 until the first sealing gasket 9 abuts against the sealing plate 10. At this time, the second sealing gasket 11 abuts against the tank mouth 2, so that the tank mouth 2 can be preliminarily sealed. Then, the air pump 6 is turned on by an external power supply, and the air pump 6 inflates the airbag 4 through the connecting pipe 7. The airbag 4 gradually becomes larger and is pressed into the sealing groove 8, so that the gap between the cap 3 and the tank mouth 2 can be sealed, thereby improving the sealing effect of the tank mouth 2.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A sealing mechanism for a storage tank, comprising a tank body (1), characterized in that: The tank body (1) is provided with a tank mouth (2) on the upper side, a cover cap (3) is movably sleeved on the outer side of the tank mouth (2), an air bag (4) is provided on the inner side of the cover cap (3), and a sealing groove (8) for docking with the air bag (4) is provided on the outer side of the tank mouth (2), a mounting block (5) is fixedly provided on the outer side of the cover cap (3), an air pump (6) is fixedly provided on the upper side of the mounting block (5), a connecting pipe (7) is fixedly provided on the outer side of the air pump (6), the connecting pipe (7) passes through the cover cap (3) and extends to the inner side, and the outer end of the connecting pipe (7) is located on the inner side of the cover cap (3) and is fixedly connected to the air bag (4), a first sealing gasket (9) is fixedly provided on the lower side of the cover cap (3), and a sealing plate (10) for docking with the first sealing gasket (9) is fixedly sleeved on the upper side of the tank body (1) and located on the outer side of the tank mouth (2).

2. A sealing mechanism for a storage tank according to claim 1, characterized in that: A second sealing gasket (11) that docks with the tank opening (2) is fixedly arranged on the inner side of the cover cap (3).

3. The sealing mechanism of a storage tank according to claim 1, characterized in that: A fixing frame (12) is fixedly provided on the upper side of the tank body (1), a threaded rod (13) is rotatably provided on the inner side of the fixing frame (12), a movable block (14) is threadedly sleeved on the outer side of the threaded rod (13), the movable block (14) movably penetrates the fixing frame (12) and extends to the outside, and a connecting rod (15) is fixedly provided on the lower side of the movable block (14) at the outer side of the fixing frame (12), and the other end of the connecting rod (15) is fixedly connected to the cover cap (3).

4. A sealing mechanism for a storage tank according to claim 3, characterized in that: A mounting plate (16) is fixedly arranged on the upper side of the fixed frame (12), a motor (17) is fixedly arranged on the upper side of the mounting plate (16), a rotating rod (18) is fixedly arranged on the power end of the motor (17), a first bevel gear (19) is fixedly arranged on the outer end of the rotating rod (18), the threaded rod (13) movably passes through the fixed frame (12) and extends to the upper side, and a second bevel gear (20) is fixedly arranged on the upper side of the fixed frame (12), and the second bevel gear (20) is meshed with the first bevel gear (19).

5. The sealing mechanism of a storage tank according to claim 3, characterized in that: A limiting groove (21) for docking the movable block (14) is provided on the inner side of the fixed frame (12), and the movable block (14) slides within the limiting groove (21).

6. The sealing mechanism of a storage tank according to claim 1, characterized in that: A discharge pipe is fixedly arranged on the outside of the tank body (1).

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