CN107697497B - Operation method for inner buckle type sealing device of tank truck - Google Patents
Operation method for inner buckle type sealing device of tank truck Download PDFInfo
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- CN107697497B CN107697497B CN201710917942.XA CN201710917942A CN107697497B CN 107697497 B CN107697497 B CN 107697497B CN 201710917942 A CN201710917942 A CN 201710917942A CN 107697497 B CN107697497 B CN 107697497B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The operation method of the inner buckle type sealing device for the tank truck rotates the pneumatic valve clockwise to ventilate the lower air inlet hole of the air cylinder at one side of the flange of the cylinder body, the piston gradually rises, the hollow lower piston rod drives the vertical pipe short joint to rise, the vertical pipe short joint drives the positioning support to move upwards, when the inner buckle stop block is in a horizontal state, the inner end lug of the inner buckle stop block is tightly propped against the lower surface of the upper flange of the vertical pipe short joint, after the tank truck is filled, the pneumatic valve is rotated counterclockwise to ventilate the upper air inlet hole of the air cylinder at one side of the flange of the cylinder body, the piston gradually descends, the hollow lower piston rod drives the vertical pipe short joint to descend, the vertical pipe short joint drives the positioning support to move downwards, the inner buckle stop block is pulled to be in a sixty-degree state, and the operation is convenient.
Description
Technical Field
The invention relates to a sealing device for a tank body of an oil tank truck, in particular to an operation method for an inner buckle type sealing device of the oil tank truck.
Background
At present, when the oil tank truck is filled with oil, no matter the plane sealing device or the inner plug sealing device can realize oil filling sealing, and the new air bag type sealing device can only be used in areas with little temperature change. In the alpine region, the air bag colloid loses elasticity under the influence of low temperature, oil gas generated by filling oil products into the tank truck cannot be well sealed, harmful gas in the oil tank is directly discharged into the atmosphere, the environment is polluted, and meanwhile, the safety production, the personal safety, the environmental protection and the like are greatly influenced. How to solve the sealing problem of the oil tank becomes a technical problem which is difficult to solve for a long time, and in view of the above reasons, the structure of the sealing cover of the oil tank is improved.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the operating method for the inner buckle type sealing device of the tank truck, which has the characteristics of convenience in operation and the like, and the popularization and application of the inner buckle type sealing device thoroughly solve the problem of oil gas recovery generated by filling oil products in alpine regions such as Xinjiang, daqing and the like, and can protect the environment and be beneficial to the health of people.
In order to achieve the above purpose, the invention adopts the following technical scheme: the operation method for the inner buckle type sealing device of the oil tank truck comprises the following steps: the device comprises a vertical pipe short joint, a vertical pipe short joint upper flange, a piston rod lower flange, a hollow lower piston rod, a cylinder lower air inlet hole, a cylinder lower flange, a piston, a hollow upper piston rod, a cylinder body, a cylinder upper air inlet hole, a cylinder upper flange, a piston rod upper flange, a sealing cover, an outer baffle ring, an annular groove rubber body, an annular sponge, an inner baffle ring, a flexible connection, a guide plate, an inner buckle stop block, a positioning support, an oil tank and a sealing ring; a cover assembly is arranged at the opening of the oil tank, a cylinder assembly is arranged in the center of the cover assembly, and a compacting assembly is arranged at the lower part of the cylinder assembly;
the structure of the cover component is as follows: the lower surface of the sealing cover is sequentially screwed with an outer baffle ring and an inner baffle ring from the edge to the center, a sealing ring is arranged at the inner periphery of a central hole of the sealing cover, a ring-shaped groove rubber body is arranged between the outer baffle ring and the inner baffle ring, the ring-shaped groove rubber body is of a circular ring structure, the upper ends of the inner periphery and the outer periphery of a U-shaped groove are respectively provided with a flange, a ring-shaped sponge is arranged in the U-shaped groove of the ring-shaped groove rubber body, the flange at the upper end of the outer periphery of the ring-shaped groove rubber body is compressed between the outer baffle ring and the sealing cover, the flange at the upper end of the inner periphery of the ring-shaped groove rubber body is compressed between the inner baffle ring and the sealing cover, a closed air bag cavity is formed between the ring-shaped groove rubber body and the lower surface of the sealing cover, and the lower surface of the ring-shaped groove rubber body is in contact with a port of an oil tank;
the structure of the cylinder assembly is as follows: the upper end of the vertical pipe short joint is connected with the lower end of the hollow lower piston rod through the vertical pipe short joint upper flange and the piston rod lower flange into a whole, a piston is arranged between the upper end of the hollow lower piston rod and the lower end of the hollow upper piston rod, the top end of the hollow upper piston rod is provided with the piston rod upper flange, the hollow upper piston rod is arranged in the cylinder body, the upper end of the cylinder body is provided with the cylinder body upper flange, one side of the cylinder body upper flange is provided with the cylinder upper air inlet hole, the lower end of the cylinder body is provided with the cylinder body lower flange, the lower part of the cylinder body lower flange is in threaded connection with the sealing cover, one side of the cylinder body lower flange is provided with the cylinder lower air inlet hole, a closed cavity is formed between the hollow upper piston rod and the cylinder body, and the cylinder lower air inlet hole and the closed cavity are communicated;
the structure of the compressing component is as follows: the two sides of the hollow lower piston rod are symmetrically provided with a pair of soft connections, the upper ends of the pair of soft connections are correspondingly fixed with the inner baffle rings, the lower ends of the pair of soft connections are correspondingly fixed with the upper ends of the pair of guide plates, the two sides of the fixed vertical pipe short joint are symmetrically provided with a pair of inclined positioning supports, the upper ends of the pair of positioning supports are hinged with the inner ends of the pair of inner buckle stop blocks through pin shafts, the inner buckle stop blocks rotate around the pin shafts at the inner ends of the inner buckle stop blocks as the center, the middle parts of the pair of inner buckle stop blocks are hinged with the lower ends of the pair of guide plates through pin shafts, the guide plates rotate around the pin shafts at the middle parts of the inner buckle stop blocks as the center, the lower parts of the inner end of the inner buckle stop blocks are provided with lugs, and when the inner buckle stop blocks are in a horizontal state, the inner buckle stop block inner end lugs are tightly propped against the lower surface of the vertical pipe short joint upper flange;
the circle centers of the hollow upper piston rod and the cylinder body are on the same vertical line, the diameters of the vertical pipe short joint, the hollow lower piston rod and the hollow upper piston rod are equal, and the circle centers of the vertical pipe short joint, the hollow lower piston rod and the hollow upper piston rod are on the same vertical line.
When the vertical pipe of the crane pipe descends, the sealing cover descends to the tank opening of the tank truck along with the vertical pipe of the main crane pipe, the pneumatic control valve rotates clockwise, the lower air inlet hole of the air cylinder at one side of the lower flange of the cylinder body is ventilated, the piston ascends gradually to drive the hollow upper piston rod to ascend, the hollow upper piston rod drives the hollow lower piston rod to ascend, the hollow lower piston rod drives the vertical pipe short circuit to ascend, the vertical pipe short circuit drives the positioning support to move upwards, the guide plate rotates by taking the pin shaft at the middle part of the inner buckling stop block as the center in the ascending process, the inner buckling stop block rotates by taking the pin shaft at the inner end of the inner buckling stop block as the center, when the inner buckling stop block is in a horizontal state, the inner end lug of the inner buckling stop block is tightly propped against the lower surface of the vertical pipe short circuit upper flange, and then the hollow upper piston rod drives the hollow lower piston rod to ascend until the upper surface of the inner buckling stop block tightly props against the inner wall of the oil tank, the port of the oil tank is gradually embedded into the annular groove rubber body, ventilation is stopped after the port is pressed, the port of the oil tank and the annular groove rubber body achieve the sealing purpose, after the tank car is filled, the pneumatic control valve is rotated anticlockwise, ventilation is carried out on an air inlet hole on an air cylinder on one side of the flange on the cylinder body, the piston is gradually lowered, the hollow upper piston rod is driven to descend, the hollow lower piston rod is driven to descend, the vertical pipe short circuit is driven to descend, the positioning support is driven to move downwards by the vertical pipe short circuit, the inner buckle stop dog is pulled to be in a sixty-degree state, and then the pressing type plane air bag sealing cover is inserted into the oil tank until the lower surface of the annular groove rubber body is contacted with the port of the oil tank, and when the crane pipe ascends, the sealing cover ascends along with the vertical pipe.
The piston is circular, and sealing rings are arranged in gaps among the piston, the hollow upper piston rod and the cylinder body.
A sealing ring is arranged between the inner periphery of the lower flange of the cylinder body and the outer wall of the hollow lower piston rod, and a sealing ring is arranged between the inner periphery of the upper flange of the cylinder body and the outer wall of the hollow upper piston rod.
The included angle between the positioning support and the vertical pipe short circuit is 30-45 degrees.
The beneficial effects of the invention are as follows: according to the invention, when the air inlet holes of the flange on the cylinder body are ventilated, the whole piston rod descends, the piston is known to reach the bottom of the cylinder, the positioning support is driven to descend, the spring pulls the spring guide plate by tension, the two pin shafts on the locking plate rotate, the locking plate is contracted, the sealing cover can be opened, when the sealing cover is covered, the air inlet holes of the flange on the cylinder body are ventilated, the whole piston rod ascends, the positioning support is driven to ascend, the spring is relaxed, the locking plate is gradually laid down until the outer side edge of the locking plate clamps the oil tank opening, so that the cover assembly and the locking plate tightly seal the oil tank opening, the sealing effect of the cover on the oil tank is greatly improved, harmful gas in the oil tank is prevented from being directly discharged into the air, and the fire hazard is reduced. The oil gas recovery device has the characteristics of simple structure, good sealing effect, convenient operation and the like, and the popularization and application of the oil gas recovery device thoroughly solve the problem of oil gas recovery generated by filling of oil products in alpine regions such as Xinjiang, daqing and the like, and can protect the environment and be beneficial to the health of people. The invention has the advantages of simple structure, ingenious design, low production cost, simple operation, obvious use effect, firmness, durability and difficult damage after long-term use, and is suitable for general popularization and application.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a general assembly structure;
in fig. 1: the vertical pipe short circuit 1, the vertical pipe short circuit upper flange 2, the piston rod lower flange 3, the hollow lower piston rod 4, the cylinder lower air inlet 5, the cylinder lower flange 6, the piston 7, the hollow upper piston rod 8, the cylinder body 9, the cylinder upper air inlet 10, the cylinder upper flange 11, the piston rod upper flange 12, the sealing cover 13, the outer baffle ring 14, the annular groove rubber body 15, the annular sponge 16, the inner baffle ring 17, the flexible connection 18, the guide plate 19, the inner buckle stop block 20, the positioning support 21, the oil tank 22 and the sealing ring 23.
Detailed Description
The invention is further described in detail below with reference to examples and embodiments:
example 1
A cover assembly is arranged at the opening of the oil tank 22, a cylinder assembly is arranged in the center of the cover assembly, and a compression assembly is arranged at the lower part of the cylinder assembly;
the structure of the cover component is as follows: the lower surface of the sealing cover 13 is sequentially screwed with an outer baffle ring 14 and an inner baffle ring 17 from edge to center, a sealing ring 23 is arranged at the inner periphery of a central hole of the sealing cover 13, a ring-shaped groove rubber body 15 is arranged between the outer baffle ring 14 and the inner baffle ring 17, the ring-shaped groove rubber body 15 is of a ring-shaped structure, the upper ends of the inner periphery and the outer periphery of a U-shaped groove are respectively provided with a flange, a ring-shaped sponge 16 is arranged in the U-shaped groove of the ring-shaped groove rubber body 15, a flange at the upper end of the outer periphery of the ring-shaped groove rubber body 15 is compressed between the outer baffle ring 14 and the sealing cover 13, a flange at the upper end of the inner periphery of the ring-shaped groove rubber body 15 is compressed between the inner baffle ring 17 and the sealing cover 13, a closed air bag cavity is formed between the ring-shaped groove rubber body 15 and the lower surface of the sealing cover 13, and the lower surface of the ring-shaped groove rubber body 15 is contacted with a port of the oil tank 22;
the structure of the cylinder assembly is as follows: the upper end of the vertical pipe short joint 1 and the lower end of the hollow lower piston rod 4 are connected into a whole through the vertical pipe short joint upper flange 2 and the piston rod lower flange 3, a piston 7 is arranged between the upper end of the hollow lower piston rod 4 and the lower end of the hollow upper piston rod 8, a piston rod upper flange 12 is arranged at the top end of the hollow upper piston rod 8, the hollow upper piston rod 8 is arranged in the cylinder body 9, a cylinder body upper flange 11 is arranged at the upper end of the cylinder body 9, a cylinder upper air inlet hole 10 is arranged at one side of the cylinder body upper flange 11, a cylinder body lower flange 6 is arranged at the lower end of the cylinder body 9, a sealing cover 13 is connected with the lower part of the cylinder body lower flange 6 in a screwed manner, a cylinder lower air inlet hole 5 is arranged at one side of the cylinder body lower flange 6, a closed cavity is formed between the hollow upper piston rod 8 and the cylinder body 9, and the cylinder lower air inlet hole 5 and the cylinder upper air inlet hole 10 are both communicated with the closed cavity;
the structure of the compressing component is as follows: the two sides of the hollow lower piston rod 4 are symmetrically provided with a pair of soft connections 18, the upper ends of the pair of soft connections 18 are correspondingly fixed with the inner baffle rings 17, the lower ends of the pair of soft connections 18 are correspondingly fixed with the upper ends of the pair of guide plates 19, the two sides of the fixed vertical pipe short joint 1 are symmetrically provided with a pair of inclined positioning supports 21, the upper ends of the pair of positioning supports 21 are hinged with the inner ends of the pair of inner buckling stop blocks 20 through pin shafts, the inner buckling stop blocks 20 rotate by taking the pin shafts at the inner ends of the inner buckling stop blocks 20 as the center, the middle parts of the pair of inner buckling stop blocks 20 are hinged with the lower ends of the pair of guide plates 19 through pin shafts, the guide plates 19 rotate by taking the pin shafts at the middle parts of the inner buckling stop blocks 20 as the center, the lower parts of the inner ends of the inner buckling stop blocks 20 are provided with lugs, and when the inner buckling stop blocks 20 are in a horizontal state, the inner end lugs of the inner buckling stop blocks 20 are tightly propped against the lower surface of the vertical pipe short joint upper flange 2;
the circle centers of the hollow upper piston rod 8 and the cylinder body 9 are on the same vertical line, the diameters of the vertical pipe short circuit 1, the hollow lower piston rod 4 and the hollow upper piston rod 8 are equal, and the circle centers of the vertical pipe short circuit 1, the hollow lower piston rod 4 and the hollow upper piston rod 8 are on the same vertical line.
Example 2
When the vertical pipe of the crane pipe descends, the sealing cover 13 descends to the tank mouth of the tank truck together with the vertical pipe of the crane pipe of the host machine, the pneumatic control valve is rotated clockwise, the lower air inlet hole 5 of the air cylinder at one side of the lower flange 6 of the cylinder body is ventilated, the piston 7 gradually ascends to drive the hollow upper piston rod 8 to ascend, the hollow upper piston rod 8 drives the hollow lower piston rod 4 to ascend, the hollow lower piston rod 4 drives the vertical pipe short circuit 1 to ascend, the vertical pipe short circuit 1 drives the positioning support 21 to move upwards, the guide plate 19 rotates by taking the pin shaft in the middle of the inner buckling stop block 20 as the center in the ascending process, the inner buckling stop block 20 rotates by taking the pin shaft at the inner end of the inner buckling stop block 20 as the center, when the inner buckling stop block 20 is in a horizontal state, the inner end lug of the inner buckling stop block 20 is propped against the lower surface of the vertical pipe short circuit upper flange 2, and then continues to ascend until the upper surface of the inner buckling stop block 20 is propped against the inner wall of the oil tank, at this time, the ring-shaped groove rubber body 15 on the lower surface of the sealing cover 13 is pressurized, the port of the oil tank 22 is gradually embedded into the ring-shaped groove rubber body 15, ventilation is stopped after the port of the oil tank 22 and the ring-shaped groove rubber body 15 achieve the sealing purpose, after the tank car is filled, the pneumatic control valve is rotated counterclockwise to ventilate the upper air inlet hole 10 on the cylinder on one side of the flange 11 of the cylinder body, the piston 7 gradually descends to drive the hollow upper piston rod 8 to descend, the hollow upper piston rod 8 drives the hollow lower piston rod 4 to descend, the hollow lower piston rod 4 drives the vertical pipe short circuit 1 to descend, the vertical pipe short circuit 1 drives the positioning support 21 to move downwards, the inner buckling stop block 20 is pulled to be in a sixty-degree state, then the pressing type plane air bag sealing cover is inserted into the oil tank until the lower surface of the ring-shaped groove rubber body 15 is contacted with the port of the oil tank 22, and the sealing cover ascends along with the vertical pipe when the vertical pipe ascends. Example 3
The piston 7 is annular, and sealing rings are arranged in gaps between the piston 7 and the hollow upper piston rod 8 and gaps between the piston 7 and the cylinder body 9.
Example 4
A sealing ring is arranged between the inner periphery of the cylinder lower flange 6 and the outer wall of the hollow lower piston rod 4, and a sealing ring is arranged between the inner periphery of the cylinder upper flange 11 and the outer wall of the hollow upper piston rod 8.
Example 5
The included angle between the positioning support 21 and the vertical pipe short circuit 1 is 30-45 degrees.
Claims (4)
1. The operation method for the inner buckle type sealing device of the oil tank truck comprises the following steps: the novel oil tank comprises a vertical pipe short joint (1), a vertical pipe short joint upper flange (2), a piston rod lower flange (3), a hollow lower piston rod (4), a cylinder lower air inlet hole (5), a cylinder lower flange (6), a piston (7), a hollow upper piston rod (8), a cylinder body (9), a cylinder upper air inlet hole (10), a cylinder upper flange (11), a piston rod upper flange (12), a sealing cover (13), an outer baffle ring (14), an annular groove rubber body (15), an annular sponge (16), an inner baffle ring (17), a flexible connection (18), a guide plate (19), an inner buckle stop block (20), a positioning support (21), an oil tank (22) and a sealing ring (23); the method is characterized in that: a cover assembly is arranged at the opening of the oil tank (22), a cylinder assembly is arranged in the center of the cover assembly, and a compression assembly is arranged at the lower part of the cylinder assembly;
the structure of the cover component is as follows: the lower surface of the sealing cover (13) is sequentially connected with an outer baffle ring (14) and an inner baffle ring (17) in a screwed manner from the edge to the center, a sealing ring (23) is arranged at the inner periphery of a central hole of the sealing cover (13), a ring-shaped groove rubber body (15) is arranged between the outer baffle ring (14) and the inner baffle ring (17), the ring-shaped groove rubber body (15) is of a ring-shaped structure, the upper ends of the inner periphery and the outer periphery of a U-shaped groove are arranged on one side of the cross section of the ring-shaped groove rubber body (15), a ring-shaped sponge (16) is arranged in the U-shaped groove of the ring-shaped groove rubber body (15), the upper end of the outer periphery of the ring-shaped groove rubber body (15) is tightly pressed between the outer baffle ring (14) and the sealing cover (13), the upper end of the inner periphery of the ring-shaped groove rubber body (15) is tightly pressed between the inner baffle ring (17) and the sealing cover (13), a closed air bag cavity is formed between the ring-shaped groove rubber body (15) and the lower surface of the sealing cover (13), and the port of the oil tank (22) is contacted with the lower surface of the ring-shaped rubber body (15);
the structure of the cylinder assembly is as follows: the upper end of the vertical pipe short joint (1) is connected with the lower end of the hollow lower piston rod (4) into a whole through the vertical pipe short joint upper flange (2) and the piston rod lower flange (3), a piston (7) is arranged between the upper end of the hollow lower piston rod (4) and the lower end of the hollow upper piston rod (8), the top end of the hollow upper piston rod (8) is provided with the piston rod upper flange (12), the hollow upper piston rod (8) is arranged in the cylinder body (9), the upper end of the cylinder body (9) is provided with the cylinder body upper flange (11), one side of the cylinder body upper flange (11) is provided with the cylinder body upper air inlet hole (10), the lower end of the cylinder body (9) is provided with the cylinder body lower flange (6), the lower part of the cylinder body lower flange (6) is connected with the sealing cover (13), a closed cavity is formed between the hollow upper piston rod (8) and the cylinder body (9), and both the cylinder lower air inlet hole (5) and the cylinder upper air inlet hole (10) are communicated with the closed cavity;
the structure of the compressing component is as follows: the two sides of the hollow lower piston rod (4) are symmetrically provided with a pair of soft connections (18), the upper ends of the pair of soft connections (18) are correspondingly fixed with the inner baffle rings (17), the lower ends of the pair of soft connections (18) are correspondingly fixed with the upper ends of the pair of guide plates (19), two sides of the fixed vertical pipe short joint (1) are symmetrically provided with a pair of inclined positioning supports (21), the upper ends of the pair of positioning supports (21) are hinged with the inner ends of the pair of inner buckling stop blocks (20) through pin shafts, the inner buckling stop blocks (20) rotate by taking the pin shafts at the inner ends of the inner buckling stop blocks (20) as the center, the middle parts of the pair of inner buckling stop blocks (20) are hinged with the lower ends of the pair of guide plates (19) through pin shafts, the lower ends of the guide plates (19) rotate by taking the pin shafts at the middle parts of the inner buckling stop blocks (20), the inner ends of the inner buckling stop blocks (20) are provided with lugs, and when the inner buckling stop blocks (20) are in a horizontal state, the inner ends of the inner buckling stop blocks (20) are tightly propped against the lower surface of the vertical pipe short joint upper flange (2);
the circle centers of the hollow upper piston rod (8) and the cylinder body (9) are on the same vertical line, the diameters of the vertical pipe short joint (1), the hollow lower piston rod (4) and the hollow upper piston rod (8) are equal, and the circle centers of the vertical pipe short joint (1), the hollow lower piston rod (4) and the hollow upper piston rod (8) are on the same vertical line;
the operation method for the inner buckle type sealing device of the tank truck comprises the following steps:
when the vertical pipe of the crane pipe descends, the sealing cover (13) descends to the tank opening of the tank truck along with the vertical pipe of the crane pipe of the host machine, the pneumatic control valve is rotated clockwise, the lower air inlet hole (5) of the air cylinder at one side of the lower flange (6) of the cylinder body is ventilated, the piston (7) gradually ascends to drive the hollow upper piston rod (8) to ascend, the hollow upper piston rod (8) drives the hollow lower piston rod (4) to ascend, the hollow lower piston rod (4) drives the vertical pipe short circuit (1) to ascend, the vertical pipe short circuit (1) drives the positioning support (21) to move upwards, the guide plate (19) rotates by taking a pin shaft at the middle part of the inner buckling stop block (20) as a center in the ascending process, the inner buckling stop (20) rotates by taking a pin shaft at the inner end of the inner buckling stop (20) as a center, when the inner buckling stop block (20) is in a horizontal state, the inner end lug of the inner buckling stop block (20) is tightly propped against the lower surface of the vertical pipe short joint upper flange (2), then the inner buckling stop block continuously rises until the upper surface of the inner buckling stop block (20) tightly props against the inner wall of the oil tank, at the moment, the annular groove rubber body (15) on the lower surface of the sealing cover (13) is stressed, the port of the oil tank (22) is gradually embedded into the annular groove rubber body (15), ventilation is stopped after the inner buckling stop block is tightly pressed, the port of the oil tank (22) and the annular groove rubber body (15) achieve the sealing purpose, after the tank truck is filled, the pneumatic control valve is rotated anticlockwise, the air inlet hole (10) on the air cylinder on one side of the upper flange (11) of the cylinder body is ventilated, the piston (7) descends gradually to drive the hollow upper piston rod (8) to descend, the hollow upper piston rod (8) drives the hollow lower piston rod (4) to descend, the hollow lower piston rod (4) drives the vertical pipe short circuit (1) to descend, the vertical pipe short circuit (1) drives the positioning support (21) to move downwards, then the inner buckle stop block (20) is pulled up to be in a sixty-degree state, and then the pressure type plane air bag sealing cover is inserted into the oil tank until the lower surface of the annular groove rubber body (15) is contacted with the port of the oil tank (22), and when the crane pipe ascends, the sealing cover ascends along with the vertical pipe.
2. A method of operation for a tank truck inner buckle seal according to claim 1, wherein: the piston (7) is annular, and sealing rings are arranged in gaps between the piston (7) and the hollow upper piston rod (8) and between the piston and the cylinder body (9).
3. A method of operation for a tank truck inner buckle seal according to claim 1, wherein: a sealing ring is arranged between the inner periphery of the cylinder body lower flange (6) and the outer wall of the hollow lower piston rod (4), and a sealing ring is arranged between the inner periphery of the cylinder body upper flange (11) and the outer wall of the hollow upper piston rod (8).
4. A method of operation for a tank truck inner buckle seal according to claim 1, wherein: the included angle between the positioning support (21) and the vertical pipe short circuit (1) is 30-45 degrees.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710917942.XA CN107697497B (en) | 2017-09-27 | 2017-09-27 | Operation method for inner buckle type sealing device of tank truck |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710917942.XA CN107697497B (en) | 2017-09-27 | 2017-09-27 | Operation method for inner buckle type sealing device of tank truck |
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| CN107697497A CN107697497A (en) | 2018-02-16 |
| CN107697497B true CN107697497B (en) | 2023-06-02 |
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| CN107055451A (en) * | 2017-06-02 | 2017-08-18 | 连云港天邦科技开发有限公司 | Link-type train jar opening sealer |
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| CN207242568U (en) * | 2017-09-27 | 2018-04-17 | 洛阳欣谱石化设备有限公司 | One kind is used for oil truck internal fastening type sealing device |
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| CN204454555U (en) * | 2015-02-13 | 2015-07-08 | 连云港三人行环境工程技术有限责任公司 | A kind of lock type enclosed hood for train tank oil article vehicle |
| CN206050597U (en) * | 2016-08-10 | 2017-03-29 | 连云港佳普石化机械有限公司 | For the interior buckle-type sealing device of tank car closed loading |
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