CN102407935A - Emergency lifting air bag - Google Patents

Abstract

The invention relates to an emergency lifting air bag, belonging to an emergency rescue device. It includes an air nozzle and an upper bottom surface and a lower bottom surface parallel to each other. It is characterized in that: the sides of the upper and lower bottom surfaces connect the upper and lower bottom surfaces through a semi-cylindrical wall to form a closed air chamber. There are several equal-height reinforcement surfaces connected between them, and the air nozzle is located on the semi-cylindrical wall. The emergency lifting airbag has a balanced and uniform lifting plane, large lifting force, fast inflation speed, easy to use, is a safe and reliable large-scale inflatable product, and can be used as aircraft ground support equipment. As a ground support facility for fighter jets and civil aircraft, it is used to replace mechanical jacks in complex situations, and quickly inflates to lift injured aircraft for rescue of people and aircraft. The emergency lifting airbag has a novel overall structure, light weight, and good safety and stability.

Description

Emergency lifting airbag

technical field

The invention relates to an airbag, in particular to an emergency lifting airbag.

Background technique

In earthquake relief, large-scale building collapses often occur. In order to save the lives under the building, the building needs to be removed, but the large excavator cannot enter at all, and the excavator is likely to cause damage to the building during its work. The collapsed again, causing life to be in danger again, and an emergency lifting device is urgently needed.

The weight of a large aircraft is usually tens or dozens of tons, and almost the whole body is in vital parts. When seeking rescue for a fall, it is also hoped to obtain a large area of relief and flexible lifting, and try to avoid the formation of a strong support at a certain point. stress concentration. The wing or fuselage of a large aircraft usually has a larger supporting lifting area, so the lifting device is required to have a larger area to be in contact with the aircraft, so as to smoothly lift the aircraft to the place where emergency repairs are needed with a strong lifting force. high.

Existing smooth surface, the lifting air bag of a large air chamber in the bag is the upper and lower bottom surfaces of the air bag with the double-layer silk fabric with plush in the middle (the two layers of double-layer silk are respectively the upper and lower bottom surfaces of the air bag, and the middle The drawing means that the plush plays the role of keeping the shape of the upper and lower bottom surfaces. At present, there are only double-layer silk with a length of 60mm in China). Because the support height of a single airbag is too small (for example, the support height is only 60mm), the number of airbags required to reach a certain height is large. The operation is complicated, the inflation is too slow, the lifting force is small, and in the airbag manufacturing process, the glue must be mechanically sprayed or manually painted to form a sealant layer on the two surfaces of the double-layer silk as the airbag. The upper and lower bottoms are then bonded to form the surrounding sides of the airbag. The pollution of the environment caused by coating the glue solution is quite serious.

Contents of the invention

Aiming at the defects in the above-mentioned fields, the TJQN-1 emergency lifting airbag provided by the present invention can realize rapid inflation, has a flat lifting surface, and can be used for lifting large aircrafts. At the same time, the emergency lifting airbag can be stacked on top of Used together, they quickly reach desired heights with stable, massive lifting power.

TJQN-1 emergency lifting airbag, including air nozzle and upper bottom surface and lower bottom surface parallel to each other, is characterized in that: the sides of the upper and lower bottom surfaces are connected by semi-cylindrical walls to form a closed air chamber. A number of equal-height reinforcing surfaces are connected between the upper and lower bottom surfaces inside the chamber, and the air nozzle is located on the semi-cylindrical wall.

The reinforcing surfaces are parallel to each other and distributed at equal intervals.

The upper and lower bottom surfaces are rectangular.

Hasp devices are provided at the outer four corners and the center of the upper and lower bottom surfaces.

The buckle device is an adhesive buckle.

The side semi-cylindrical wall is provided with a handle.

An adhesive plaster made of coated fabric with a flexible material, usually tending to be circular when inflated. The TJQN-1 emergency lifting airbag made of flexible material adhesive tape in the present invention is inflated, and the uniform, stable and powerful support plane is realized by several equal-height adhesive tape reinforcement surfaces connected between the upper and lower bottom surfaces inside the airbag. The space enclosed by the reinforced surface of the inner contour forms an air wall perpendicular to the upper and lower bottoms. The surrounding semi-cylindrical walls connecting the upper and lower bottom surfaces of the airbag are inflated to form a semi-cylindrical air column in the airbag, which plays a shape-preserving role in flattening the air chamber. Since several reinforcing surfaces connecting the upper and lower bottom surfaces in the airbag are not directly connected with the surrounding semi-cylindrical walls, the surrounding semi-cylindrical air columns form an airflow channel, making the airbag an air chamber that can be quickly inflated and the lifting force is uniform and stable. .

The upper and lower bottom surfaces can be in various shapes, preferably rectangular, which is suitable for the pressure-bearing bottom shape of aircraft and vehicles. The internal reinforcement surfaces are preferably equidistant and parallel reinforcement surfaces to ensure uniform pressure bearing and stable lifting.

The upper and lower bottom surfaces of the airbags are provided with buckle devices for easy connection with other airbags, so that the emergency lifting airbags can be stacked together for use, and can be lifted to the required height with huge lifting force. The side semi-cylindrical wall is provided with a handle.

The side semi-cylindrical wall is provided with a handle for easy carrying.

TJQN-1 emergency lifting airbag is a large inflatable product with large lifting force, fast inflation speed, convenient use, safety and reliability. It can be used as a ground support facility for fighter jets and civil aircraft, and can be used to replace mechanical jacks in complex situations and quickly inflate and lift Take up the injured plane so that the people and the plane can be rescued. Large locomotives and the like can also be rescued.

The overall structure of TJQN-1 emergency lifting airbag is novel, light in weight, good in safety and stability, and the pressure bearing surface of a single airbag is 200×180cm in length and width after inflating. .

The emergency lifting airbag of the present invention is made of flexible material tape, which has excellent high and low temperature resistance, mold resistance, humidity and heat resistance, salt spray resistance, bending resistance and abrasion resistance; its unique internal structure replaces similar international products The structure of the commonly used plush box-type skeleton fabric is not only light in weight, but also small in size and high in pressure. Moreover, when the airbag is manufactured, the sizing material with excellent comprehensive properties is directly covered on the fabric by machinery, as the upper and lower bottom of the airbag, the reinforcement surface, and the periphery of the semi-cylinder, and only a small amount of adhesive is used to bond the seams during molding. The harm to the environment and personnel caused by the use of a large amount of solvents for the materials used for coating the glue to manufacture the airbag is avoided.

Description of drawings

Fig. 1 three-dimensional schematic diagram of the appearance of the emergency lifting airbag of the present invention

Fig. 2 is a top view of the internal structure of the emergency lifting airbag of the present invention.

Figure 3 A-A view in Figure 2.

Figure 4 B-B view in Figure 2.

The symbols in the figure are listed as follows:

1-upper bottom surface, 2-semi-cylindrical wall, 3-intake valve (the opposite side is the exhaust valve), 4-velcro (the opposite side of the suede velcro is the hook surface velcro), 5-handle (the opposite side Same), 6-intake and exhaust bonnet tethering rope seat, 7-product logo, 8-reinforcing surface, 9-semi-cylindrical air column inner cavity around, 10-lower bottom surface (opposite side of upper bottom surface).

Detailed ways

As shown in the figure, several reinforced surfaces 8 perpendicular to the height of the upper and lower bottom surfaces are connected between the rectangular upper and lower bottom surfaces 1 and 10 of the emergency lifting airbag of the present invention, and the sides of the upper and lower bottom surfaces 1 and 10 are composed of four The two semi-cylindrical walls 2 are connected, and the four semi-cylindrical cylinders are connected end to end to form a semi-cylindrical air column cavity 9 around. 3. After entering the bag, due to the unique internal structure, the present invention quickly inflates to become a uniform and stable lifting surface, which is convenient to use.

The semi-cylindrical wall 2 is provided with a handle 5, an intake and exhaust valve cap tethering rope seat 6, and a product mark 7, which is conducive to lifting; The emergency lifting airbags are used in stacks so that they can be lifted to the desired height.

Performance parameters of TJQN-1 emergency lifting airbag:

The working pressure of the airbag is 0.04MPa, the bursting pressure is not less than 0.12MPa, the lifting force of a single airbag is not less than 14 tons, and the supporting height of the working state is 300mm.

The TJQN-1 emergency lifting airbag made of ordinary materials produces huge lifting force when inflated, the key lies in the novel and unique structure. (as the picture shows)

The emergency lifting airbag of the present invention has excellent overall performance, and has been well received by army commanders and fighters in actual use.

The rescue of large expensive and heavy objects such as airplanes requires high-pressure, stable large-scale inflatable adhesive tape products to be lifted and supported safely. Shenyang Rubber Research and Design Institute has designed TJQN-1 emergency lifting airbag with a novel and unique structure by using the mechanics principle of inflatable products. The TJQN-1 emergency lifting airbag module developed by choosing domestic common materials and adopting environmentally friendly processing technology is easy to use, fast inflated, and can safely and stably lift a 28-ton aircraft.

The airbag has excellent high and low temperature resistance, mold resistance, heat and humidity resistance, salt spray resistance, bending resistance and abrasion resistance. The comprehensive performance belongs to the advanced level in the world.

Claims (6)

1. The emergency lift airbag includes an air nozzle and an upper bottom surface and a lower bottom surface parallel to each other. The air nozzle is packaged with an air inlet and outlet valve. It is characterized in that the sides of the upper and lower bottom surfaces are connected by a semi-cylindrical wall. A closed air chamber is formed, a number of equal-height reinforcing surfaces are connected between the upper and lower bottom surfaces inside the air chamber, and the air nozzle is located on the semi-cylindrical wall. 2. The emergency lifting airbag according to claim 1, characterized in that: the reinforcing surfaces are parallel to each other and distributed at equal intervals. 3. The emergency lifting airbag according to claim 2, characterized in that: the upper and lower bottom surfaces are rectangular. 4. The emergency lifting airbag according to claim 1, characterized in that: a handle is provided on the semi-cylindrical wall. 5. The emergency lifting airbag according to claim 1, characterized in that: the outer four corners and the center of the upper and lower bottom surfaces are provided with buckle devices. 6. The emergency lifting airbag according to claim 5, characterized in that: the buckle device is a sticky buckle.

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