The invention provides a planar inflation sealing device for a tank opening of a tank truck. A sealing upper cover (8) is arranged above the tank opening (10); a planar air bag (5) is arranged between the sealing upper cover and the tank opening, and is connected to an inflating opening (3) formed in the sealing upper cover; and a crane pipe (1) which extends to the inside of the tank truck is arranged in the middle of the sealing upper cover. The planar air bag is arranged on the lower surface of the sealing upper cover, the crane pipe is arranged in the middle of the sealing upper cover, the crane pipe and the tank opening are sealed well, and the planar air bag is effectively protected against being damaged. The planar inflation sealing device for the tank opening of the tank truck has the advantages of simple structure, high sealing effect, convenience in operation and the like. The planar inflation sealing device is suitable to be popularized and used widely.

Planar inflation sealing device for tank opening of tank truck

The invention provides an inflation sealing device for a tank opening of the tank truck. A flange fixing body (4) is arranged in the tank opening (7); a crane pipe (1) which extends to the inside of the tank truck is arranged in the middle of the flange fixing body; an annular lug boss which extends outwards is arranged at the upper end of the flange fixing body; a sealing gasket (8) is arranged between the lower surface of the annular lug boss and the upper surface of the tank opening; a V-shaped air bag (5) with high expansion coefficient is arranged between the outer edge surface of the middle of the flange fixing body and the inner edge surface of the inner wall of the tank opening, so that the crane pipe and the tank opening can be sealed well; the V-shaped air bag is connected to an inflating nozzle (3) of the flange fixing body; and an anti-collision body (10) is arranged at the lower end of the flange fixing body, the V-shaped air bag is effectively protected against being damaged during installation. The inflation sealing device for the tank opening of the tank truck has the advantages of simple structure, high sealing effect, convenience in operation and the like. The inflation sealing device is suitable to be widely popularized and used.

Inflation sealing device for tank opening of tank truck

The invention discloses a novel upper-mounted crane pipe airbag-type sealing device and belongs to the technical field of crane tubes The novel upper-mounted crane pipe capsule-type sealing device comprises a vertical stretching pipe, a gas-phase pipe, a cover plate, an inverted circular-truncated cone and an airbag stretching device; the inverted circular-truncated cone is fixed on the lower end of the cover plate and is coaxially arranged with the same, an annular groove is formed in the position of the center of the cover plate along the vertical direction, the airbag stretching pipe comprises a plurality of sleeves, an airbag, a pressure chamber, a gas-phase intake pipe and a push plate, the push plate is inwardly fixedly connected with the sleeves, and each sleeve comprises a sleeve bar, a socket and a spring By the arrangement, the problem about untight sealing due to the fact that tank openings of an oil tank truck are different in size can be solved, the airbag of a sealing cover is pressed on the tank opening of the oil tank truck through pressure difference, friction of the airbag with the tank opening of the tank truck can be avoided during loading and unloading, and generation of abrasion even breakage is avoided

Novel upper-mounted crane pipe airbag-type sealing device

The invention relates to a pressing type fast gasoline extracting device capable of being locked. The pressing type fast gasoline extracting device comprises a shell, a sleeve and a vent pipe. The top end of the shell is sleeved with the sleeve. The vent pipe is mounted in an inner cavity of the shell and the sleeve. The shell comprises a first part and a second part, the first part is composed of an upper hollow cylinder and a lower hollow cylinder which are different in diameter, and a separation plate is formed at a connector of the first part and the second part. An air inlet and a gasoline outlet are formed in the top end of the sleeve, and the sleeve can be vertically pushed along the first part of the shell. The vent pipe comprises a main vent pipe body, a control pipeline, a fixed sleeve ring and a gasoline inlet, a round ring is arranged at the lower end of the main vent pipe body, and the round ring is in sealing fit with the separation plate of the shell. The control pipeline is provided with a vent opening, and is detachably arranged in an inner cavity of a hollow circular truncated cone at the upper end of the fixed sleeve ring. The fixed sleeve ring comprises the hollow circular truncated cone and a hollow round ring. The pressing type fast gasoline extracting device capable of being locked is adopted, gasoline can be fast supplied to an automobile, gasoline supplying speed can be adjusted, and gasoline supplying can be stopped at any time.

Pressing type fast gasoline extracting device capable of being locked

The invention discloses an air conditioner unit box integrated type self-sealing structure. The air conditioner unit box integrated type self-sealing structure comprises cover plates and an air inflated rubber gasket body. Each cover plate is of a halfpace structure, and the cover plates are combined and fixed to form an integrated box body. The periphery of the top of the halfpace structure of each cover plate is provided with an air inflated sealing ring groove, after the cover plates are combined and fixed, a closed whole is formed through the air inflated sealing ring grooves, and the airinflated rubber gasket body is arranged in the closed whole. According to the air conditioner unit box integrated type self-sealing structure, the air inflated rubber gasket body can achieve an excellent sealing effect with positive pressure or negative pressure in an air conditioner unit, and the larger the pressure in the air conditioner unit is, the better the sealing performance is. The sealing failure of the air inflated rubber gasket body can be judged through the air pressure of the air inflected rubber gasket body, meanwhile, when the whole air inflated rubber gasket body is changed, destructive treatment does not exist, and operation is very convenient.

Air conditioner unit box integrated type self-sealing structure

The invention relates to a multifunctional leakage prevention cover plate device for a gas recovery sealed tank car. The cover plate device is characterized in that a cover plate (1) is a round flat plate or a conical hollow plug, a circular soft sealing ring assembly (34) is adhered on the lower surface of the round flat plate, and a soft sealing ring (5) is adhered on the outer surface of the conical hollow plug. A gasbag guide fixed bracket (7) is sheathed on the inner diameter of the soft sealing ring assembly (34) and has the upper end thereof in threaded connection with the cover plate (1) and a gasbag (4) supported by the lower end thereof. A gasbag inflation pipe (8) and a gasbag exhaust pipe (14) passing through the gasbag guide fixed bracket (7) and the gasbag (4) are arranged at the inner diameter and respectively protrude out of the cover plate (1) through a gasbag inflation pipe hole (42) and a gasbag exhaust pipe hole (41). The inventive leakage prevention cover plate device has the advantages of simple structure, a plurality of times of sealing, high recovery efficiency, no leakage, no pollution, safe and reliable performance, fulfillment of national environmental protection and safety requirements, and fulfillment of explosion protection requirements under sealing condition; and can be used under various working conditions, so as to effectively improve the gas recovery rate.

Multifunction non-leakage cap plate device of hermetic tanker for gas-recovering

The invention relates to a multifunction multi-airbag leakage-free gas recycling closed tank car cover plate device, which is characterized in that: a cover plate 1 is of a circular flat plate, a circular flat ring-shaped cover plate airbag sealing ring (34) is adhered onto the lower surface of the circular flat plate, an airbag guide fixed bracket (7) is nested inside a conical cover plate airbag sealing ring (134), and the lower end of the airbag fixed bracket (7) is connected with a spring hook (20) of a corrugated pipe (19). A reversed tower-shaped airbag guide fixed bracket (207) is arranged below a circular flat ring-shaped flexible sealing ring cover plate, and the interlayer between the airbag guide fixed bracket (7) and the reversed tower-shaped airbag fixed bracket (207) is provided with airbag sealing rings (80) and (120). An airbag ring charging-discharging pipe (10), an airbag charging-discharging tee manual valve (8) and an airbag charging control valve (9) are arranged inside the airbag sealing ring (80). The airbag charging-discharging pipe extends out of the cover plate (1) through an airbag charging-discharging pipe hole (42). The device has simple structure, adopts multiple airbags to seal, is safe and reliable to use, and has high recycling efficiency. The device is free from leakage and pollution, conforms to the national environmental protection and safety requirement and conforms to the intrinsic explosion-proof requirement under the sealing, and loading arms which are used under different work conditions can be matched and can conform to the diameter and the height of the entrance hole of the tank car. The recycling rate of the gas is improved.

Yongbin Jia

Papers

Multifunction non-leakage cap plate device of hermetic tanker for gas-recovering

Multifunction multi-airbag leakage-free gas recycling closed tank car cover plate device