Sealing structure of hazardous chemical substance storage and transportation device

Abstract

The utility model discloses a sealing structure of a hazardous chemical substance storage and transportation device, relates to the technical field of sealing structures, and aims to solve the problems that a top cover of the storage and transportation device in the prior art is poor in sealing capacity, cannot be stably sealed and is poor in practicability. A tank opening is formed in the upper portion of the interior of the storage and transportation tank, a top cover is arranged in the middle of the upper portion of the storage and transportation tank, internal threads are arranged on the upper portion of the interior of the tank opening, a threaded column is installed on the upper portion of the interior of the tank opening of the storage and transportation tank in a threaded mode, the threaded column is fixedly connected with the top cover, and a sealing plate is rotatably installed below the threaded column. A convex ring is arranged on the outer side of the lower portion of the sealing plate and fixedly connected with the storage and transportation tank, an upper ring groove is formed in the lower end face of the sealing plate, a lower ring groove is formed in the upper end face of the convex ring, the upper ring groove corresponds to the lower ring groove in position, a first rubber ring is fixedly installed in the upper ring groove of the sealing plate, and a second rubber ring is fixedly installed in the lower ring groove of the sealing plate. And a rubber ring II is fixedly mounted in the lower ring groove of the convex ring.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, and particularly relates to a sealing structure for a hazardous chemical storage and transportation device. Background Technique

[0002] Hazardous chemicals refer to highly toxic chemicals and other chemicals with properties such as toxicity, corrosion, explosion, combustion, and combustion support, and are harmful to humans, facilities, and the environment. During the storage and transportation of hazardous chemicals, it is necessary to store the hazardous chemicals in a storage device for storage and transportation;

[0003] For example, the patent with the publication number CN112429421A (a storage and transportation device for hazardous chemicals): includes a protective outer shell and a disc-shaped bottom block. A nitrogen gas tank is provided inside the protective outer shell. A load-bearing rod is provided at the bottom of the nitrogen gas tank. The top end of the load-bearing rod is fixedly attached to a disc-shaped load-bearing plate. The middle of the top end of the disc-shaped load-bearing plate is fixedly attached to a storage tank. A feeding pipe is fixedly connected to the top end of the storage tank. The feeding pipe penetrates the storage tank. A feeding through groove is provided inside the feeding pipe. Mirror-image distributed side columns are fixedly attached to the middle side wall of the nitrogen gas tank. One end of the side column away from the nitrogen gas tank is fixedly connected to a concave disc;

[0004] Although the above-mentioned prior art facilitates the chemicals stored inside the storage tank to maintain a relatively stable state, the top cover is only connected by threads and lacks a sealing structure. Hazardous chemicals are prone to leakage. Furthermore, the sealing ability of the top cover of the storage and transportation device is poor, and it cannot be stably sealed, resulting in poor practicability. Therefore, there is an urgent need in the market to develop a sealing structure for a hazardous chemical storage and transportation device to help people solve existing problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sealing structure for a hazardous chemical storage and transportation device to solve the problems of poor sealing ability of the top cover of the storage and transportation device, inability to stably seal, and poor practicability mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sealing structure for a hazardous chemical storage and transportation device, including a storage tank. Above the inside of the storage tank is provided a tank opening. In the middle above the storage tank is provided a top cover. Above the inside of the tank opening is provided an internal thread. A threaded column is threadedly installed above the inside of the tank opening of the storage tank. The threaded column is fixedly connected to the top cover. A sealing plate is rotatably installed below the threaded column. An outer convex ring is provided on the outside below the sealing plate. The convex ring is fixedly connected to the storage tank. An upper ring groove is provided on the lower end surface of the sealing plate. A lower ring groove is provided on the upper end surface of the convex ring. The upper ring groove and the lower ring groove are in corresponding positions. A rubber ring one is fixedly installed inside the upper ring groove of the sealing plate. A rubber ring two is fixedly installed inside the lower ring groove of the convex ring. The rubber ring one and the rubber ring two are in contact with each other.

[0007] Preferably, auxiliary pressing plates are symmetrically arranged on both sides above the top cover. A fixing block is arranged on one side below the auxiliary pressing plate, and the fixing block is fixedly connected to the storage and transportation tank.

[0008] Preferably, a circular plate is arranged above the auxiliary pressing plate. A circular hole is arranged inside the auxiliary pressing plate, and a threaded groove is arranged inside the fixing block. The positions of the circular hole and the threaded groove correspond to each other. A threaded rod is fixedly installed below the circular plate. The lower end of the threaded rod passes through the auxiliary pressing plate through the circular hole and extends into the threaded groove inside to be threadedly connected to the fixing block.

[0009] Preferably, a vertical rod is fixedly installed above the circular plate, and a hand wheel is fixedly installed above the vertical rod.

[0010] Preferably, an installation ring groove is arranged along the outside of the lower ring groove on the upper end surface of the convex ring, and a sealing ring I is fixedly installed inside the installation ring groove of the convex ring.

[0011] Preferably, a handle is fixedly installed above the top cover. A sealing ring groove is arranged along the lower part of the top cover on the upper end surface of the storage and transportation tank, and a sealing ring II is fixedly installed inside the sealing ring groove of the storage and transportation tank.

[0012] Preferably, an installation cylinder base is arranged below the storage and transportation tank, and a cushion column is fixedly installed below the installation cylinder base.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By arranging a threaded column threadedly connected to the storage tank below the top cover, the present utility model facilitates the installation of the top cover on the storage and transportation tank in a threaded manner. A sealing plate is rotatably arranged below the threaded column, and a convex ring fixedly connected to the storage and transportation tank is arranged below the sealing plate. A rubber ring I and a rubber ring II are arranged between the sealing plate and the convex ring. The stable sealing can be achieved through the contact closure of the two rubber rings, thereby improving the sealing ability of the top cover, being beneficial to the sealing stability of the storage and transportation tank, and increasing the practicability.

[0015] 2. By symmetrically arranging two auxiliary pressing plates on both sides above the top cover, when the top cover is installed on the storage and transportation tank, by placing one end of the auxiliary pressing plate on the top cover and then rotating the hand wheel, the vertical rod rotates, which can drive the threaded rod to rotate and move downward, so that the circular plate can tightly press on the auxiliary pressing plate to fix the position of the auxiliary pressing plate. Furthermore, through the auxiliary fixation of the top cover by the auxiliary pressing plate, the stability of the top cover is improved.

[0016] 3. The utility model further improves the sealing performance between the convex ring and the sealing plate by arranging a first sealing ring inside the mounting ring groove of the convex ring, and improves the sealing performance between the storage and transportation tank and the top cover by arranging a second sealing ring inside the sealing ring groove of the storage and transportation tank, thus increasing the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a sealing structure of a hazardous chemical storage and transportation device of the present utility model;

[0018] Figure 2 It is an enlarged schematic diagram of part A of the present utility model;

[0019] Figure 3 It is a cross-sectional view of the auxiliary pressing plate and the fixing block of the present utility model;

[0020] Figure 4 It is a cross-sectional view of the installation part of the top cover of the present utility model;

[0021] Figure 5 It is an enlarged schematic diagram of part B of the present utility model.

[0022] In the figure: 1, storage and transportation tank; 101, tank opening; 2, placing cylinder base; 3, cushion column; 4, top cover; 5, handle; 6, auxiliary pressing plate; 601, round hole; 7, fixing block; 701, threaded groove; 8, round plate; 9, vertical rod; 10, handwheel; 11, threaded rod; 12, threaded column; 13, sealing plate; 1301, upper ring groove; 14, convex ring; 1401, lower ring groove; 1402, mounting ring groove; 15, first rubber ring; 16, second rubber ring; 17, first sealing ring; 18, second sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] Please refer to Figures 1-5, An embodiment provided by the present utility model: A sealing structure for a hazardous chemical storage and transportation device, including a storage tank 1. Above the interior of the storage tank 1, there is a tank opening 101. In the middle above the storage tank 1, there is a top cover 4. Above the interior of the tank opening 101, there is an internal thread. Inside the tank opening 101 of the storage tank 1, a threaded column 12 is threadedly installed. The threaded column 12 is fixedly connected to the top cover 4. Below the threaded column 12, a sealing plate 13 is rotatably installed. On the outer side below the sealing plate 13, there is a convex ring 14. The convex ring 14 is fixedly connected to the storage tank 1. On the lower end surface of the sealing plate 13, there is an upper ring groove 1301. On the upper end surface of the convex ring 14, there is a lower ring groove 1401. The upper ring groove 1301 and the lower ring groove 1401 are in corresponding positions. Inside the upper ring groove 1301 of the sealing plate 13, a first rubber ring 15 is fixedly installed. Inside the lower ring groove 1401 of the convex ring 14, a second rubber ring 16 is fixedly installed. The first rubber ring 15 and the second rubber ring 16 are in contact and fit with each other.

[0025] During use, when installing the top cover 4, through the provided threaded column 12, the top cover 4 is installed on the storage tank 1 in a threaded manner. And during the threaded installation of the top cover, the sealing plate 13 moves downward to contact the convex ring 14. Through the contact and closure of the first rubber ring 15 and the second rubber ring 16 provided between the sealing plate 13 and the convex ring 14, stable sealing can be achieved, improving the sealing ability of the top cover 4 and increasing the sealing stability of the storage tank.

[0026] Furthermore, on both sides above the top cover 4, auxiliary pressing plates 6 are symmetrically arranged respectively. On one side below the auxiliary pressing plate 6, there is a fixing block 7. The fixing block 7 is fixedly connected to the storage tank 1. Through the provided auxiliary pressing plates 6, the auxiliary fixation of the top cover 4 can be achieved, improving the stability of the top cover 4.

[0027] Furthermore, above the auxiliary pressing plate 6, there is a circular plate 8. Inside the auxiliary pressing plate 6, there is a circular hole 601. Inside the fixing block 7, there is a threaded groove 701. The circular hole 601 and the threaded groove 701 are in corresponding positions. Below the circular plate 8, a threaded rod 11 is fixedly installed. The lower end of the threaded rod 11 passes through the circular hole 601 of the auxiliary pressing plate 6 and extends into the interior of the threaded groove 701 to be threadedly connected with the fixing block 7, so that by driving the threaded rod 11 to rotate and move downward, the circular plate 8 can tightly press on the auxiliary pressing plate 6, facilitating the position fixation of the auxiliary pressing plate 6.

[0028] Furthermore, above the circular plate 8, a vertical rod 9 is fixedly installed. Above the vertical rod 9, a handwheel 10 is fixedly installed. By rotating the handwheel 10 and under the transmission of the vertical rod 9, it is convenient to drive the circular plate 8 to drive the threaded rod 11 to rotate.

[0029] Further, an installation ring groove 1402 is provided along the outer side of the lower ring groove 1401 on the upper end surface of the convex ring 14. A first sealing ring 17 is fixedly installed inside the installation ring groove 1402 of the convex ring 14, further improving the sealing performance between the convex ring 14 and the sealing plate 13.

[0030] Further, a handle 5 is fixedly installed above the top cover 4, facilitating the disassembly and assembly of the top cover 4. A sealing ring groove is provided along the lower side of the top cover 4 on the upper end surface of the storage tank 1. A second sealing ring 18 is fixedly installed inside the sealing ring groove of the storage tank 1, which can improve the sealing performance between the storage tank 1 and the top cover 4 and increase the practicability.

[0031] Further, a placement cylinder base 2 is provided below the storage tank 1. A cushion column 3 is fixedly installed below the placement cylinder base 2. There are four cushion columns 3, and the four cushion columns 3 are arranged in a ring, increasing the stability of the placement cylinder base 2.

[0032] Working principle: When in use, during the installation of the top cover 4, through the provided threaded column 12, the top cover 4 is installed on the storage tank 1 in a threaded manner. And during the threaded installation process of the top cover, the sealing plate 13 moves downward to contact the convex ring 14. Through the contact closure of the first rubber ring 15 and the second rubber ring 16 provided between the sealing plate 13 and the convex ring 14, stable sealing can be achieved, improving the sealing ability of the top cover 4. Then, one end of the auxiliary pressing plate 6 is placed on the top cover 4, and the handwheel 10 is rotated to make the vertical rod 9 rotate, which can drive the threaded rod 11 to rotate and move downward, so that the circular plate 8 can tightly press on the auxiliary pressing plate 6 to fix the position of the auxiliary pressing plate 6. Furthermore, through the auxiliary fixation of the top cover 4 by the auxiliary pressing plate 6, the stability of the top cover 4 is improved.

[0033] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A sealing structure for a hazardous chemical storage and transportation device, comprising a storage and transportation tank (1), characterized in that: Above the inside of the storage and transportation tank (1), there is a tank opening (101). In the middle above the storage and transportation tank (1), there is a top cover (4). Above the inside of the tank opening (101), there is an internal thread. Inside the tank opening (101) of the storage and transportation tank (1), a threaded column (12) is installed by threading. The threaded column (12) is fixedly connected to the top cover (4). Below the threaded column (12), a sealing plate (13) is rotatably installed. On the outer side below the sealing plate (13), there is a convex ring (14). The convex ring (14) is fixedly connected to the storage and transportation tank (1). On the lower end face of the sealing plate (13), there is an upper ring groove (1301). On the upper end face of the convex ring (14), there is a lower ring groove (1401). The upper ring groove (1301) and the lower ring groove (1401) are in corresponding positions. Inside the upper ring groove (1301) of the sealing plate (13), a first rubber ring (15) is fixedly installed. Inside the lower ring groove (1401) of the convex ring (14), a second rubber ring (16) is fixedly installed. The first rubber ring (15) and the second rubber ring (16) are in contact with each other.

2. The sealing structure of a hazardous chemical storage and transportation device according to claim 1, characterized in that: On both sides above the top cover (4), auxiliary pressing plates (6) are symmetrically arranged respectively. On one side below the auxiliary pressing plate (6), there is a fixing block (7). The fixing block (7) is fixedly connected to the storage and transportation tank (1).

3. The sealing structure of a hazardous chemical storage and transportation device according to claim 2, wherein: Above the auxiliary pressing plate (6), there is a round plate (8). Inside the auxiliary pressing plate (6), there is a round hole (601). Inside the fixing block (7), there is a threaded groove (701). The round hole (601) and the threaded groove (701) are in corresponding positions. Below the round plate (8), a threaded rod (11) is fixedly installed. The lower end of the threaded rod (11) passes through the auxiliary pressing plate (6) through the round hole (601) and extends into the threaded groove (701) inside to be threadedly connected to the fixing block (7).

4. A sealing structure of a hazardous chemical storage and transportation device according to claim 3, characterized in that: Above the round plate (8), a vertical rod (9) is fixedly installed. Above the vertical rod (9), a handwheel (10) is fixedly installed.

5. A sealing structure for a hazardous chemical storage and transportation device according to claim 1, characterized in that: On the upper end face of the convex ring (14), along the outside of the lower ring groove (1401), there is an installation ring groove (1402). Inside the installation ring groove (1402) of the convex ring (14), a first sealing ring (17) is fixedly installed.

6. The sealing structure of a hazardous chemical storage and transportation device according to claim 1, characterized in that: Above the top cover (4), a handle (5) is fixedly installed. On the upper end face of the storage and transportation tank (1), along the lower side of the top cover (4), there is a sealing ring groove. Inside the sealing ring groove of the storage and transportation tank (1), a second sealing ring (18) is fixedly installed.

7. A sealing structure for a hazardous chemical storage and transportation device according to claim 1, characterized in that: Below the storage and transportation tank (1), there is a placement cylinder base (2). Below the placement cylinder base (2), a cushion column (3) is fixedly installed.

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