Sealing device with safe opening mechanism for pressure container

Abstract

The utility model discloses a pressure vessel sealing device with a safe opening mechanism, which is characterized in that a sealing block matched with a sealing tank for use is mounted at the bottom of the inner side of a sealing cover, a first moving piston is mounted below the sealing block, and the bottom of the first moving piston is connected with a second moving piston through a connecting rod; a safe opening mechanism is mounted on the second moving piston; the safe opening mechanism comprises a pressure discharging pipe, the top of the pressure discharging pipe penetrates through a second moving piston and a first moving piston to be connected with a telescopic pipe arranged at the bottom of the sealing block, the other end of the telescopic pipe is connected with an external pipe, and the top end of the external pipe penetrates to the top of the outer side of the sealing cover. The top of the sealing cover is provided with a movable plug used in cooperation with an external pipe. According to the sealing device with the safe opening mechanism for the pressure container, in order to solve the problem that certain potential safety hazards exist when an existing sealing device for the pressure container is opened, the safe opening mechanism is installed on the second movable piston.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing devices, in particular to a sealing device for a pressure container with a safety opening mechanism. Background Art

[0002] Equipment with specific process functions and under a certain pressure in industrial production is called a pressure vessel. Pressure vessels are widely used and are generally equipped with sealing devices to prevent fluids or solid particles from leaking from adjacent joint surfaces or from invading the interior with external impurities.

[0003] After searching, it is found that in the prior art, such as publication number CN208565546U, there is a sealing device for a pressure vessel, which includes a tank body and a fixed block, a connecting block is connected to the tank body, and a sealing cover is arranged on the connecting block, a first threaded rod is installed on the sealing cover, and a rotating handle is installed on the first threaded rod, a first movable block is installed at the lower end of the first threaded rod, and the first movable block is connected to the second movable block, and the lower part of the second movable block is mutually connected with the upper part of the first support plate, a spring is installed below the first support plate, and a second support plate is installed below the spring, and a sealing gasket is arranged below the second support plate, the fixed block is mutually connected with the tank body, and a pad is installed below the sealing cover. The sealing device for a pressure vessel has a simple structure and is easy to use. The first threaded rod is movably connected to the first movable block, which is also convenient for future disassembly. When the pressure in the tank body is upward, the spring has elastic force and will also rebound under pressure.

[0004] In summary, the existing sealing device for pressure vessels has a simple structure and is easy to use. However, when the existing sealing device for pressure vessels is opened, the internal pressure of the container is much greater than the external pressure. At the moment of opening, the sealing cover is easily lifted up by the pressure, which poses certain safety hazards. Therefore, a sealing device for pressure vessels with a safety opening mechanism is proposed. Utility Model Content

[0005] The utility model aims to provide a sealing device for a pressure vessel with a safety opening mechanism, so as to solve the problem in the prior art that when the pressure vessel is opened, the internal pressure of the container is much greater than that of the outside, so the sealing cover is easily lifted up by the pressure at the moment of opening, which poses a certain safety hazard.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing device for a pressure vessel with a safety opening mechanism, comprising a sealing cover, connecting blocks used in conjunction with a sealing tank are symmetrically arranged on both sides of the sealing cover, and a sealing block used in conjunction with the sealing tank is installed at the bottom of the inner side of the sealing cover, a first movable piston is installed below the sealing block, and the bottom of the first movable piston is connected to the second movable piston through a connecting rod, and the second movable piston is installed with a safety opening mechanism; the safety opening mechanism includes a pressure relief pipe, and the top of the pressure relief pipe passes through the second movable piston and is connected with the first movable piston and a telescopic tube arranged at the bottom of the sealing block, the other end of the telescopic tube is connected to an external tube, and the top of the external tube passes through the top of the outer side of the sealing cover, and a movable plug used in conjunction with the external tube is installed on the top of the sealing cover.

[0007] Preferably, the connecting block includes a block, and a slot matching the block is opened on the sealing can, one side of the block is connected to a moving plate arranged inside the moving slot, and two sets of racks are installed on one side of the moving plate, the racks are meshed with gears, and the gears are installed on the outside of the rotating rod, and one end of the rotating rod passes through the top of the outside of the sealing cover and is connected to the turning handle.

[0008] The above technical solution makes it easy to define the position of the sealing cover.

[0009] Preferably, sealing rings are installed on the outer sides of the sealing block, the first movable piston and the second movable piston.

[0010] Through the above technical solution: it is convenient to improve the sealing performance.

[0011] Preferably, the top of the first movable piston is connected to a movable block via a symmetrically arranged connecting arm, the movable block is mounted on the outside of the first screw mechanism, and the top of the first screw mechanism is connected to a driving handle arranged on the outside of the sealing cover.

[0012] Through the above technical solution, it is convenient to drive the first movable piston to move.

[0013] Preferably, the movable plug includes a motor, and the motor is connected to a second screw mechanism arranged at the bottom of the mounting frame, a sleeve is connected to the outside of the second screw mechanism, and a sealing plate is arranged at the bottom of the sleeve, and a sealing plug used in conjunction with an external pipe is installed at the bottom of the sealing plate.

[0014] Through the above technical solution: it is convenient to open and close one end of the external pipe.

[0015] Preferably, a limiting plate is arranged on the inner side of the mounting frame, and the limiting plate is slidably connected to the sleeve.

[0016] Through the above technical solution: the stability of the sleeve when moving is improved.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the sealing device for a pressure vessel with a safety opening mechanism is designed to solve the problem that the sealing cover of the existing pressure vessel sealing device is easily pushed up by the pressure at the moment of opening because the internal pressure of the container is much greater than that of the outside when the container is opened, which poses certain safety hazards. A safety opening mechanism is installed on the second movable piston, the safety opening mechanism includes a pressure relief pipe, and the top of the pressure relief pipe is connected to the telescopic pipe, the other end of the telescopic pipe is connected to the external pipe, and the top of the external pipe passes through to the top of the outer side of the sealing cover, and a movable plug used in conjunction with the external pipe is installed on the top of the sealing cover. When the sealing cover needs to be opened, the motor in the movable plug is turned on, so that the sealing plug no longer seals the top of the external pipe. At this time, the pressure in the sealed tank is discharged through the external pipe, thereby reducing the pressure in the sealed tank and preventing the sealing cover from being pushed up due to excessive internal pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall front view cross-sectional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the connection card block of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection relationship between the movable plate and the rack of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the movable plug of the utility model.

[0022] In the figure: 1. sealing cover; 101. sealing block; 2. sealing tank; 3. connecting block; 301. block; 302. moving groove; 303. moving plate; 304. rack; 305. gear; 306. rotating rod; 307. rotating handle; 4. first moving piston; 401. connecting arm; 402. moving block; 403. first screw mechanism; 404. driving handle; 5. connecting rod; 6. second moving piston; 7. safety opening mechanism; 701. pressure relief pipe; 702. telescopic pipe; 703. external pipe; 8. moving plug; 801. motor; 802. second screw mechanism; 8021. limit plate; 803. sleeve; 804. sealing plate; 805. sealing plug. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 The utility model provides a technical solution: a sealing device for a pressure vessel with a safety opening mechanism, according to Figure 1-3 As shown, connecting blocks 3 for use with the sealing can 2 are symmetrically arranged on both sides of the sealing cover 1.

[0025] Specifically, the connecting block 3 includes a block 301, and a slot matching the block 301 is opened on the sealing can 2, one side of the block 301 is connected to a moving plate 303 arranged inside the moving slot 302, and two sets of racks 304 are installed on one side of the moving plate 303, the racks 304 are meshed with gears 305, and the gears 305 are installed on the outside of the rotating rod 306, and one end of the rotating rod 306 passes through the top of the outside of the sealing cover 1 and is connected to the turning handle 307.

[0026] In a further embodiment, the moving groove 302 is opened inside the sealing cover 1 , and the moving plate 303 is slidably connected to the inside of the moving groove 302 .

[0027] In a further embodiment, the later turning handle 307 can be limited by fixing bolts to prevent it from rotating.

[0028] When it is necessary to limit the position of the sealing cover 1, the handle 307 is rotated, and the handle 307 drives the gear 305 to rotate through the rotating rod 306. Under the action of the rotation of the gear 305, the rack 304 drives the movable plate 303 to move, so that the position of the block 301 changes. When the block 301 is fully engaged with the slot opened in the sealing can 2, the position of the sealing cover 1 can be limited.

[0029] according to Figure 1 and Figure 4 As shown, a sealing block 101 for use with the sealing tank 2 is installed at the bottom inner side of the sealing cover 1, a first movable piston 4 is installed below the sealing block 101, and the bottom of the first movable piston 4 is connected to the second movable piston 6 through a connecting rod 5, and a safety opening mechanism 7 is installed on the second movable piston 6.

[0030] In a further embodiment, sealing rings are installed on the outside of the sealing block 101, the first movable piston 4 and the second movable piston 6. The sealing effect of the sealing block 101, the first movable piston 4 and the second movable piston 6 can be improved by providing the sealing rings.

[0031] Specifically, the top of the first movable piston 4 is connected to the movable block 402 through a symmetrically arranged connecting arm 401 , the movable block 402 is installed outside the first screw mechanism 403 , and the top of the first screw mechanism 403 is connected to the driving handle 404 arranged outside the sealing cover 1 .

[0032] During use, after the sealing cover 1 is fixed, the driving handle 404 is rotated, and the driving handle 404 drives the first screw mechanism 403 to rotate, thereby driving the first movable piston 4 and the second movable piston 6 to move downward through the moving block 402 to apply pressure to the inside of the sealing can 2.

[0033] Specifically, the safety opening mechanism 7 includes a pressure relief pipe 701, and the top of the pressure relief pipe 701 passes through the second movable piston 6 and is connected to the first movable piston 4 and the telescopic tube 702 set at the bottom of the sealing block 101. The other end of the telescopic tube 702 is connected to the external tube 703, and the top of the external tube 703 passes through the outer top of the sealing cover 1. A movable plug 8 used in conjunction with the external tube 703 is installed on the top of the sealing cover 1.

[0034] Specifically, the movable plug 8 includes a motor 801, and the motor 801 is connected to a second screw mechanism 802 arranged at the bottom of the mounting frame. A sleeve 803 is connected to the outside of the second screw mechanism 802, and a sealing plate 804 is arranged at the bottom of the sleeve 803. A sealing plug 805 used in conjunction with the external pipe 703 is installed at the bottom of the sealing plate 804.

[0035] In a further embodiment, an anti-self-rotation mechanism is installed at the output end of the motor 801 to prevent the output end of the motor 801 from self-rotating.

[0036] In a further embodiment, a limiting plate 8021 is disposed on the inner side of the mounting frame, and the limiting plate 8021 is slidably connected to the sleeve 803 .

[0037] When the sealing cover 1 needs to be opened, the motor 801 is turned on. Under the action of the motor 801, the second screw mechanism 802 rotates to drive the sleeve 803, the sealing plate 804 and the sealing plug 805 to move upward, so that the sealing plug 805 no longer seals the top of the external pipe 703. At this time, the pressure in the sealing tank 2 is discharged through the external pipe 703, thereby reducing the pressure in the sealing tank 2 and preventing the sealing cover 1 from being lifted up due to excessive internal pressure in the sealing tank 2.

[0038] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sealing device for a pressure vessel with a safety opening mechanism, comprising a sealing cover (1), characterized in that: The sealing cover (1) is symmetrically provided with connecting blocks (3) for use with the sealing can (2), and a sealing block (101) for use with the sealing can (2) is installed at the bottom of the inner side of the sealing cover (1), a first movable piston (4) is installed below the sealing block (101), and the bottom of the first movable piston (4) is connected to the second movable piston (6) through a connecting rod (5), and the second movable piston (6) is installed with a safety opening mechanism (7); The safety opening mechanism (7) comprises a pressure relief pipe (701), and the top of the pressure relief pipe (701) passes through the second movable piston (6) and is connected to the first movable piston (4) and a telescopic pipe (702) arranged at the bottom of the sealing block (101); the other end of the telescopic pipe (702) is connected to an external pipe (703), and the top of the external pipe (703) passes through the top of the outer side of the sealing cover (1); and a movable plug (8) used in conjunction with the external pipe (703) is installed on the top of the sealing cover (1).

2. A sealing device for a pressure vessel with a safety opening mechanism according to claim 1, characterized in that: The connecting block (3) comprises a block (301), and a slot matching the block (301) is provided on the sealing can (2), one side of the block (301) is connected to a moving plate (303) arranged inside the moving slot (302), and one side of the moving plate (303) is provided with two sets of racks (304), the racks (304) are meshed with gears (305), and the gears (305) are installed on the outside of a rotating rod (306), and one end of the rotating rod (306) passes through the top of the outside of the sealing cover (1) and is connected to a rotating handle (307).

3. A sealing device for a pressure vessel with a safety opening mechanism according to claim 1, characterized in that: Sealing rings are installed on the outer sides of the sealing block (101), the first movable piston (4) and the second movable piston (6).

4. A sealing device for a pressure vessel with a safety opening mechanism according to claim 1, characterized in that: The top of the first movable piston (4) is connected to a movable block (402) via a symmetrically arranged connecting arm (401); the movable block (402) is mounted on the outside of a first screw mechanism (403); and the top of the first screw mechanism (403) is connected to a driving handle (404) arranged on the outside of the sealing cover (1).

5. A sealing device for a pressure vessel with a safety opening mechanism according to claim 1, characterized in that: The movable plug (8) comprises a motor (801), and the motor (801) is connected to a second screw mechanism (802) arranged at the bottom of the mounting frame, a sleeve (803) is connected to the outside of the second screw mechanism (802), and a sealing plate (804) is arranged at the bottom of the sleeve (803), and a sealing plug (805) used in conjunction with the external pipe (703) is installed at the bottom of the sealing plate (804).

6. A sealing device for a pressure vessel with a safety opening mechanism according to claim 5, characterized in that: A limiting plate (8021) is arranged on the inner side of the mounting frame, and the limiting plate (8021) is slidably connected to the sleeve (803).

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