Semi-finished product storage tank sealing device

Abstract

The utility model relates to the technical field of semi-finished product storage tanks, in particular to a semi-finished product storage tank sealing device. According to the technical scheme, the device comprises a storage tank and a storage tank opening formed in the top of the storage tank, and further comprises a storage tank opening cover fixedly connected with a port of the storage tank opening in a sleeving mode; the top-layer sealing ring is fixed on the inner wall of the storage tank opening cover and is used for sealing a top port of the storage tank opening; the bottom layer sealing ring is used for sealing the bottom port of the storage tank opening; and the connecting rod is used for fixedly connecting the top-layer sealing ring and the bottom-layer sealing ring. Through the design of the top layer sealing ring and the bottom layer sealing ring, the upper end opening and the lower end opening of the storage tank opening can be sealed respectively, and multi-layer sealing is achieved; through the vertical sliding of the middle-layer sealing ring between the top-layer sealing ring and the bottom-layer sealing ring and the valve assembly installed on the middle-layer sealing ring and the bottom-layer sealing ring, air between the top-layer sealing ring and the bottom-layer sealing ring can be exhausted, and sealing gas is guided into the storage tank to achieve gas sealing.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-finished product storage tanks, in particular to a sealing device for a semi-finished product storage tank. Background Art

[0002] Since the storage tanks for semi-finished products need to be opened for subsequent processing at a later stage, it is impossible to use sealing methods such as glue seals that are difficult to disassemble and assemble. Therefore, sealing rings are usually used to seal the tank mouth.

[0003] When the existing tank mouth adopts a single-layer sealing ring, not only the sealing effect is poor, but also the sealing will fail when the sealing ring is damaged; if a multi-layer sealing ring is adopted, although the problem of the single-layer sealing ring can be solved, a large amount of air will remain in the area between the adjacent layers of sealing rings. When the single-layer sealing ring close to the tank body is damaged, this part of the air can still enter the tank body and cause the material to deteriorate. Therefore, the utility model proposes a semi-finished product storage tank sealing device with a multi-layer air sealing structure. Utility Model Content

[0004] The utility model aims to provide a sealing device for a semi-finished product storage tank in view of the problems existing in the background technology.

[0005] The technical solution of the utility model is as follows: a semi-finished product storage tank sealing device comprises a storage tank and a storage tank opening arranged on the top of the storage tank, and also comprises: a storage tank opening cover fixedly sleeved with an end of the storage tank opening; a top sealing ring fixed to the inner wall of the storage tank opening cover for sealing the top end of the storage tank opening; a bottom sealing ring sealing the bottom end of the storage tank opening; a connecting rod fixedly connecting the top sealing ring and the bottom sealing ring; and an intermediate sealing ring sliding up and down along the connecting rod to evacuate the air between the top sealing ring and the bottom sealing ring.

[0006] Optionally, the top sealing ring includes a top sealing ring core fixed to the inner wall of the tank cover and a top sealing ring sleeve fixedly sleeved on the outer ring of the top sealing ring core.

[0007] Optionally, the bottom sealing ring includes a bottom sealing ring core fixed to the bottom end of the connecting rod and a bottom sealing ring sleeve fixedly sleeved on the outer ring of the bottom sealing ring core.

[0008] Optionally, the intermediate layer sealing ring includes an intermediate layer sealing ring core slidably connected to the connecting rod and an intermediate layer sealing ring sleeve fixedly sleeved on the outer ring of the intermediate layer sealing ring core.

[0009] Optionally, a push-pull column is included, the bottom end of which is fixedly connected to the middle layer sealing ring core, and the top end of which passes through the top layer sealing ring core and the tank cover.

[0010] Optionally, a sealing column sleeve is fixedly sleeved on the outer wall of the push-pull column.

[0011] Optionally, the middle layer sealing ring core and the bottom layer sealing ring core are both provided with valve holes, and a valve assembly is provided in the valve hole, and the valve assembly includes a valve ball that can block the narrow mouth of the valve hole, a fixed shaft with one end fixedly connected to the inner wall of the valve hole, a spring plate fixedly connected to the other end of the fixed shaft, and a spring with one end fixedly connected to the spring plate and the other end resting against the valve ball.

[0012] Optionally, the tank cover and the top layer sealing ring core are provided with vertically aligned exhaust holes, and a sealing gasket capable of blocking the exhaust holes is fixedly connected to the upper surface of the middle layer sealing ring core.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] The present application can seal the upper and lower ports of the storage tank respectively through the design of the top sealing ring and the bottom sealing ring to achieve multi-layer sealing;

[0015] Furthermore, by vertically sliding the middle sealing ring between the top sealing ring and the bottom sealing ring and by installing the valve assembly on the middle sealing ring and the bottom sealing ring, the air between the top sealing ring and the bottom sealing ring can be discharged and the sealing gas can be introduced from the storage tank to realize gas sealing;

[0016] In summary, the sealing effect of the storage tank can be greatly improved and the sealing failure problem caused by damage to individual sealing rings can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the connection between the semi-finished product storage tank sealing device and the storage tank;

[0018] Figure 2 for Figure 1 A plan cross-sectional view of

[0019] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 for Figure 2 Schematic diagram of the structure after the middle layer sealing ring is moved up.

[0021] Reference numerals: 1, storage tank; 11, storage tank opening;

[0022] 2. Storage tank cover;

[0023] 3. Top sealing ring; 31. Top sealing ring core; 32. Top sealing ring sleeve;

[0024] 4. bottom sealing ring; 41. bottom sealing ring core; 42. bottom sealing ring sleeve;

[0025] 5. Connecting rod;

[0026] 6. middle layer sealing ring; 61. middle layer sealing ring core; 62. middle layer sealing ring sleeve;

[0027] 7. Push-pull column; 71. Sealing column sleeve;

[0028] 8. Valve hole; 9. Valve assembly; 91. Valve ball; 92. Fixed shaft; 93. Spring plate; 94. Spring;

[0029] 01. Exhaust hole; 02. Sealing gasket; DETAILED DESCRIPTION

[0030] 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.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "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 an indirect connection 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 invention can be understood according to specific circumstances.

[0033] like Figure 1-4 As shown, a semi-finished product storage tank sealing device proposed by the utility model comprises a storage tank 1 and a storage tank opening 11 arranged on the top of the storage tank 1 .

[0034] In this embodiment, the tank opening cover 2 is threadedly connected to the top end of the tank opening 11 to facilitate assembly and disassembly.

[0035] The top sealing ring 3 includes a top sealing ring core 31 and a top sealing ring sleeve 32. The top of the top sealing ring core 31 is coaxially fixedly connected to the bottom of the tank mouth cover 2, and the top sealing ring sleeve 32 is fixedly sleeved on the outer ring of the top sealing ring core 31 and fits with the inner wall of the tank mouth 11 to achieve sealing of the top port of the tank mouth 11.

[0036] The bottom sealing ring 4 includes a bottom sealing ring core 41 and a bottom sealing ring sleeve 42. The bottom sealing ring sleeve 42 is fixedly sleeved on the outer ring of the bottom sealing ring core 41 and fits the inner wall of the tank port 11 to achieve sealing of the bottom port of the tank port 11. The upper surface of the bottom sealing ring core 41 is fixedly connected to the bottom end of the connecting rod 5, and the top end of the connecting rod 5 is fixedly connected to the lower surface of the top sealing ring core 31. In this embodiment, three connecting rods 5 are provided and arranged in a ring around the central axis of the tank port 11 to ensure the stability of the connection between the top sealing ring 3 and the bottom sealing ring 4.

[0037] The middle layer sealing ring 6 includes a middle layer sealing ring core 61 which is slidably connected to the connecting rod 5, and a long strip sealing plug is filled in the sliding hole at the connection for sealing. The middle layer sealing ring sleeve 62 is fixedly sleeved on the outer ring of the middle layer sealing ring core 61 and fits with the inner wall of the tank mouth 11 to further enhance the sealing effect. The upper surface of the middle layer sealing ring core 61 is fixedly connected to the bottom end of the push-pull column 7, the top end of the push-pull column 7 penetrates the top layer sealing ring core 31 and the tank mouth cover 2, and a sealing column sleeve 71 is fixedly sleeved on the outer wall of the push-pull column 7 to enhance the sealing performance during the sliding process.

[0038] In addition, the middle layer sealing ring core 61 and the bottom layer sealing ring core 41 are both provided with valve holes 8, and valve assemblies 9 are provided in the two valve holes 8. The valve assembly 9 includes a valve ball 91 that can block the narrow opening of the valve hole 8, a fixed shaft 92 fixedly connected to the inner wall of the valve hole 8 at one end, a spring plate 93 fixedly connected to the other end of the fixed shaft 92, and a spring 94 fixedly connected to the spring plate 93 at one end and abutting against the valve ball 91 at the other end. The elastic thrust of the spring 94 can make the valve ball 91 block the narrow opening of the valve hole 8 to stop the gas flow;

[0039] In addition, the tank cover 2 and the top layer sealing ring core 31 are provided with vertically aligned exhaust holes 01 , and the upper surface of the middle layer sealing ring core 61 is fixedly connected with a sealing gasket 02 that can block the exhaust hole 01 .

[0040] The working principle of this embodiment is as follows: when sealing, the bottom sealing ring 4 is inserted into the tank opening 11 and the tank opening cover 2 is screwed and connected with the tank opening 11. At this time, the bottom sealing ring 4 is located at the bottom end of the tank opening 11 for bottom sealing, and the top sealing ring 3 is located at the top end of the tank opening 11 for top sealing. Subsequently, the push-pull column 7 is pushed downward to drive the middle layer sealing ring 6 to move downward, and the valve ball 91 installed in the middle layer sealing ring core 61 is pushed upward by the air between the top sealing ring 3 and the bottom sealing ring 4, so that the air in this area will enter the space above the middle layer sealing ring 6 through the valve hole 8 opened on the middle layer sealing ring core 61, as shown in FIG. Figure 2 As shown, the middle layer sealing ring 6 can be moved down to be close to the bottom layer sealing ring 4. Next, the push-pull column 7 is pulled upward to drive the middle layer sealing ring 6 to move up, and the valve hole 8 installed in the middle layer sealing ring core 61 is pressed at the narrow mouth of the valve hole 8 under the action of its own gravity and the elastic force of the spring 94, so that the air above the middle layer sealing ring 6 cannot pass through the valve hole 8 to return to the bottom of the middle layer sealing ring 6 and is squeezed out from the exhaust hole 01. At the same time, the valve hole 8 installed in the bottom layer sealing ring core 41 will offset the elastic force of the spring 94 due to the decrease in air pressure above and move upward to open the corresponding valve hole 8, so that the inert gas used for sealing in the storage tank 1 will surge up from the valve hole 8 and fill the area between the middle layer sealing ring 6 and the bottom layer sealing ring 4 to achieve gas sealing.

[0041] In summary, through the design of the top sealing ring 3 and the bottom sealing ring 4, the upper and lower ports of the storage tank mouth 11 can be sealed respectively to achieve multi-layer sealing; through the vertical sliding of the middle layer sealing ring 6 between the top sealing ring 3 and the bottom sealing ring 4 and the valve assembly 9 installed on the middle layer sealing ring 6 and the bottom sealing ring 4, the air between the top sealing ring 3 and the bottom sealing ring 4 can be discharged and the sealing gas can be introduced from the storage tank 1 to achieve gas sealing; therefore, the present application can greatly improve the sealing effect of the storage tank 1 and can avoid the sealing failure problem caused by damage to individual sealing rings.

[0042] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A semi-finished product storage tank sealing device, comprising a storage tank (1) and a storage tank opening (11) arranged at the top of the storage tank (1), characterized in that: Also includes: A storage tank opening cover (2) fixedly sleeved with the end of the storage tank opening (11); A top sealing ring (3) fixed to the inner wall of the tank opening cover (2) for sealing the top end of the tank opening (11); A bottom sealing ring (4) for sealing the bottom port of the storage tank opening (11); A connecting rod (5) for fixing and connecting the top sealing ring (3) and the bottom sealing ring (4); The middle sealing ring (6) slides up and down along the connecting rod (5) to exhaust the air between the top sealing ring (3) and the bottom sealing ring (4).

2. A semi-finished product storage tank sealing device according to claim 1, characterized in that: The top sealing ring (3) comprises a top sealing ring core (31) fixed to the inner wall of the tank cover (2) and a top sealing ring sleeve (32) fixedly sleeved on the outer ring of the top sealing ring core (31).

3. A semi-finished product storage tank sealing device according to claim 2, characterized in that: The bottom sealing ring (4) comprises a bottom sealing ring core (41) fixed to the bottom end of the connecting rod (5) and a bottom sealing ring sleeve (42) fixedly sleeved on the outer ring of the bottom sealing ring core (41).

4. A semi-finished product storage tank sealing device according to claim 3, characterized in that: The intermediate layer sealing ring (6) comprises an intermediate layer sealing ring core (61) slidably connected to the connecting rod (5) and an intermediate layer sealing ring sleeve (62) fixedly sleeved on the outer ring of the intermediate layer sealing ring core (61).

5. A semi-finished product storage tank sealing device according to claim 4, characterized in that: It comprises a push-pull column (7), the bottom end of which is fixedly connected to the middle layer sealing ring core (61), and the top end of which passes through the top layer sealing ring core (31) and the storage tank cover (2).

6. A semi-finished product storage tank sealing device according to claim 5, characterized in that: The outer wall of the push-pull column (7) is fixedly sleeved with a sealing column sleeve (71).

7. A semi-finished product storage tank sealing device according to claim 6, characterized in that: The intermediate sealing ring core (61) and the bottom sealing ring core (41) are both provided with a valve hole (8), and a valve assembly (9) is provided in the valve hole (8). The valve assembly (9) comprises a valve ball (91) capable of blocking the narrow opening of the valve hole (8), a fixed shaft (92) having one end fixedly connected to the inner wall of the valve hole (8), a spring plate (93) fixedly connected to the other end of the fixed shaft (92), and a spring (94) having one end fixedly connected to the spring plate (93) and the other end abutting against the valve ball (91).

8. A semi-finished product storage tank sealing device according to claim 7, characterized in that: The tank cover (2) and the top sealing ring core (31) are provided with vertically aligned exhaust holes (01), and the upper surface of the middle sealing ring core (61) is fixedly connected with a sealing gasket (02) capable of blocking the exhaust hole (01).

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