CN221049943U

CN221049943U - Double-layer air bag

Info

Publication number: CN221049943U
Application number: CN202322793114.3U
Authority: CN
Inventors: 王征
Original assignee: Jindianshi Beijing Architectural Design Consulting Service Co ltd
Current assignee: Jindianshi Beijing Architectural Design Consulting Service Co ltd
Priority date: 2023-10-18
Filing date: 2023-10-18
Publication date: 2024-05-31
Anticipated expiration: 2033-10-18

Abstract

The utility model relates to a double-layer air bag, which comprises two air bag layers, wherein the two air bag layers are respectively an outer layer and an inner layer, the inner layer is positioned in the outer layer, the outer layer and the inner layer are connected through a plurality of connecting components, and the outer layer and the inner layer are respectively detachably connected with two ends of the connecting components; the space between the outer layer and the inner layer forms a protection module and is filled with protection gas, the inner space of the inner layer forms a buoyancy module and is filled with buoyancy gas, and the pressure of the protection gas is larger than that of the buoyancy gas. The product has simple structure and convenient maintenance and assembly, and even if hydrogen is used as buoyancy gas for providing buoyancy, the occurrence of the situations of breakage, hydrogen overflow or aggregation can be prevented through the multiple insurance measures of the design, and the occurrence of accidents such as explosion and the like is avoided to the greatest extent. The cost of the product is lower, and the connection between the air bag layers or between the air bag layers and the airship is not needed to be realized in a mode of damaging the air bag layers.

Description

Double-layer air bag

Technical Field

The utility model relates to the field of airships, in particular to a double-layer air bag which can be used for an airship.

Background

The airship is a lighter-than-air aircraft, its working principle is that the buoyancy produced by atmosphere is changed according to the volume of gas, the air bag of the airship body is filled with buoyancy gas (usually hydrogen or helium) whose density is less than that of air so as to produce buoyancy to make the airship lift off, and at the same time utilizes power propulsion system, on-board function system and flight control system to implement lift off, descent, air suspension or motor-driven flight, etc.. At present, most airship air bag structures are single-layer air bag structures, and the safety and reliability of the airship are limited by the ageing resistance, air tightness and material strength of air bag materials. On the one hand, for safety reasons, most of the gas filled in the air bag is helium with lighter volume weight and higher safety, but not hydrogen with the lightest volume weight but the explosion danger, but the cost of using helium is too high, so that the manufacturing, using and maintaining costs are very high, and the cost effectiveness is not competitive. Moreover, even if helium is used, there is a lack of recovery means and means for avoiding leakage, which tends to result in waste of resources and an increase in cost. On the other hand, conventional airship airbag configurations make it difficult to find even small tears or breakage of the airship airbag. Once the airbag is slightly leaked or broken, the airship must be stopped immediately, otherwise, huge economic loss is possibly caused, and the serious consequences of the death of the airship are possibly caused.

In the conventional common airbag structure, even if the airbag structure is improved, for example, different airbag units are connected with each other or the airbag units are connected with an airship framework, the airbag is often required to be perforated with holes for installing connecting pieces and the like, the airbag can be damaged to a certain extent, and even if subsequent maintenance work such as sealing is performed on the holes, the potential safety hazards of breakage and leakage of floating gas of the airbag are easily left.

Therefore, the novel air bag which can safely use hydrogen and simultaneously reduce the manufacturing, using and maintaining costs can be developed at the present stage, and the air bag structure can be improved without a destructive mode, so that the connection between air bag units and airships is better realized.

Disclosure of utility model

In view of the above-mentioned technical problems in the related art, the present utility model provides a double-layer airbag, which can overcome the above-mentioned shortcomings of the prior art.

In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:

The utility model relates to a double-layer air bag, which comprises two air bag layers, wherein the two air bag layers are respectively an outer layer and an inner layer, the inner layer is positioned in the outer layer, the outer layer and the inner layer are connected through a plurality of connecting components, and the outer layer and the inner layer are respectively detachably connected with two ends of the connecting components;

The space between the outer layer and the inner layer forms a protection module and is filled with a protection gas, the inner space of the inner layer forms a buoyancy module and is filled with a buoyancy gas, the gas pressure of the protection gas is larger than that of the buoyancy gas, and the density of the buoyancy gas is smaller than that of the protection gas. When the buoyancy module is used, the buoyancy module plays a role in providing buoyancy, and the protection module plays a role in protection. In addition, the connecting component can be used for connecting the outer layer and the inner layer, or can be used for connecting the outer layer and external equipment by referring to the connecting mode of the outer layer and the inner layer.

Further, the shielding gas may be a single gas or a mixed gas which is not inflammable and explosive, preferably, one or more inert gases with better stability such as helium, neon, argon, krypton, xenon, or a mixed gas which is not easy to burn and explode such as common air.

Further, the buoyancy gas is selected from single gas or mixed gas with better buoyancy, preferably, one or any mixture of hydrogen and helium is selected.

Further, the connecting assembly comprises two connecting piece bodies connected end to end, the head and the tail of each connecting piece body are respectively provided with a hanging ring capable of being connected with a connecting wire, and the two connecting piece bodies are connected end to end through the cooperation of the connecting wire and the hanging ring.

Further, the connector body includes a base and a fastener, the base being detachably connected to the fastener via the airbag layer. It should be noted that when the base and the fastener are connected with each other through the air bag layer, destructive modification such as hole penetrating is not required in the whole process, and the air bag layer always maintains its integrity.

Further, the base and the fastener may be made of elastic material or metal material, which is specifically determined according to practical needs.

Further, the right end of the fastener is detachably sleeved on the left end of the base, and the air bag layer is located between the right end of the fastener and the left end of the base.

In one embodiment of the utility model, the right end of the base is provided with a base pressure plate, and the left end of the base is provided with a base protruding part; the right end of the fastener is provided with a fastener inner cavity, and the left end of the fastener is provided with a fastener protruding part;

When the air bag type air conditioner is used, the base protruding portion is propped against the air bag layer from inside to outside, the inner side face of the air bag layer is partially sleeved on the base protruding portion, the base pressing plate is fully contacted with the inner side face of the air bag layer, the contact area of the base and the air bag layer is increased by the base pressing plate, the unit area pressure of the base to the air bag layer is reduced, then the inner cavity of the fastener is sleeved on the base protruding portion, and therefore the air bag layer is located between the base protruding portion and the inner cavity of the fastener.

Further, a circle of base groove is formed at the right end of the base protruding part, a fastener protrusion matched with the base groove is formed at the right end of the inner cavity of the fastener, and the fastener protrusion is in buckling connection with the base groove; when the novel anti-falling fastener is used, the fastener protrusions are in snap fit with the base grooves, so that the inner cavities of the fasteners can be prevented from falling off from the base protruding portions.

Further, according to actual needs, a plurality of slots which can be expanded and contracted can be formed in the side wall of the inner cavity of the fastener, and inclined planes can be correspondingly formed in the peripheral wall of the base protruding portion. When the fastener is fastened to the base, the inner cavity of the fastener contacts the inclined surface of the protruding part of the base, and the side wall of the inner cavity of the fastener can be simultaneously expanded outwards due to the slit; when reaching the base groove, the side wall of the inner cavity of the fastener is restored to the previous shape, so that the fastener bulge and the base groove are connected together in a buckling way, and the connection between the fastener and the base is firmer.

Further, the size and shape of the base protruding part and the fastener protruding part are consistent; when the novel combined type fastener is used, a plurality of fasteners can be overlapped and combined in a mode that the inner cavities of the fasteners are sleeved on the protruding parts of the fasteners.

Further, the outer layer and the inner layer may be provided with a plurality of air valves or sensors respectively according to actual needs, and the air valves may be air charging valves or air discharging valves. The sensor monitors parameters such as temperature, humidity and air pressure of the protection module or the buoyancy module respectively, and the air inlet valve and the air outlet valve can carry out corresponding air charging or air discharging operation on the protection module or the buoyancy module according to the monitored parameters, so that the stability of the double-layer air bag is ensured. Wherein, the charging valve, the exhaust valve and the sensor can be realized by adopting the prior art.

Further, the specific shape of the outer layer and the inner layer may be determined according to actual needs, and preferably the two are identical in shape and are rectangular, cylindrical or spherical.

In one embodiment of the present utility model, the outer layer and the external object may be connected in multiple locations by a plurality of connection members. The outer layer and the external object are connected in multiple parts, so that lifting force borne by the outer layer can be uniformly distributed on the surface of the outer layer in multiple points, the stress intensity of the specific connection point of the outer layer is reduced, and when static electricity is generated in the outer layer, the static electricity is immediately drained and released to the external object, so that risks such as combustion, explosion and the like possibly caused by the static electricity of the double-layer air bag are effectively prevented.

The beneficial effect that this design obtained: (A) Through the unique design of the product, the whole product is simple in structure, convenient to repair, assemble and disassemble, and can realize atraumatic connection between the air bags and external objects, and the connection, the installation and the disassembly are very convenient. The outer layer gasbag can be connected with the multi-position of external object simultaneously, can flow and release to external object immediately when outer layer gasbag once produces static, effectively prevent the gasbag because of risk such as burning, explosion that static probably leads to.

(B) The connection mode between the inner layer and the outer layer of the double-layer air bag is that the inner layer or the outer layer is connected through the air bag layer by the connection component, destructive drilling and the like are not needed for the inner layer or the outer layer, the integrity of the inner layer or the outer layer serving as an independent air bag layer is ensured, and the risk of damaging the inner layer or the outer layer is further reduced.

(C) The measures that the air pressure of the outer layer of the protective gas is larger than that of the inner layer of the buoyancy gas can effectively avoid leakage of the inner layer of the buoyancy gas caused by non-human factors, and the measures that the pressure sensor, the inflation valve, the exhaust valve and the like are arranged can recycle the buoyancy gas or the protective gas, so that the waste of resources is reduced and the gas cost is reduced; the protective gas or the buoyancy gas can be selectively supplemented or discharged according to the requirements of safety, lifting and the like. Even if hydrogen is used as buoyancy gas, the occurrence of dangers such as hydrogen combustion or explosion is avoided to the greatest extent through measures such as damage of an air bag layer, overflow or aggregation of the hydrogen and the like, and the effective safety protection measures enable the airship used for pure cargo transportation to use the hydrogen as the buoyancy gas, so that the lifting force is larger, and the manufacturing, using and maintaining costs are lower. In particular, noble inert gas is used as shielding gas or buoyancy gas, such as helium, and the like, and can be recovered through the design of a gas valve, so that the overall gas cost of the product is reduced.

(D) The protection module and the buoyancy module of the product allow different types of gases to be selected, and the buoyancy gas filled in the buoyancy module can be hydrogen, helium or the like; the protection module can also select various gases as long as the characteristics of nonflammability and explosiveness are met, and the protection module has larger adaptability and practicability compared with the prior art on the premise of having safety.

(E) The product has the advantages of simple structure, convenient maintenance and assembly, safe use, higher lifting force, lower manufacturing, using and maintenance cost and the like.

Drawings

The utility model is described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a double-layered airbag according to an embodiment of the present utility model.

Fig. 2 is a schematic view of the structures of the outer layer and the inner layer according to the embodiment of the present utility model.

Fig. 3 is a schematic structural view of a connection assembly according to an embodiment of the present utility model.

Fig. 4 is a schematic view illustrating the disassembly of the connector body according to the embodiment of the present utility model.

Fig. 5 is a schematic cross-sectional view of a base and a fastener connected via an airbag layer according to an embodiment of the present utility model.

Fig. 6 is a cross-sectional view and a schematic structural view of the fastener according to the embodiment of the present utility model in a plurality of stacked combinations.

In the figure: 1. an outer layer; 2. an inner layer; 3. an air valve; 4. a connection assembly; 5. a connector body; 6. connecting wires; 7. a base; 701. a base platen; 702. a base projection; 703; a base groove; 8. a fastener; 801. an inner cavity of the fastener; 802. a fastener projection; 803. a fastener groove; 804. a fastener bulge; 805. a slot.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model.

As shown in fig. 1 to 6, in order to facilitate understanding of the above technical solutions of the present utility model, the following describes the above technical solutions of the present utility model in detail by a specific usage manner.

When the double-layer airbag is particularly used, the double-layer airbag comprises two airbag layers, wherein the two airbag layers are respectively an outer layer 1 and an inner layer 2, the inner layer 2 is positioned in the outer layer 1, the outer layer 1 and the inner layer 2 are connected through a plurality of connecting components 4, and the outer layer 1 and the inner layer 2 are respectively detachably connected with two ends of the connecting components 4;

The space between the outer layer 1 and the inner layer 2 forms a protection module and is filled with a protection gas, the inner space of the inner layer 2 forms a buoyancy module and is filled with a buoyancy gas, the gas pressure of the protection gas is larger than that of the buoyancy gas, and the density of the buoyancy gas is smaller than that of the protection gas. When the buoyancy module is used, the buoyancy module plays a role in providing buoyancy, and the protection module plays a role in protection. The connection member 4 may be used for connection between the outer layer 1 and the inner layer 2, or may be used for connection between the outer layer 1 and an external device by referring to a connection manner between the outer layer 1 and the inner layer 2.

In a specific embodiment of the present utility model, the shielding gas may be a single gas or a mixed gas that is not inflammable and explosive, preferably, one or more inert gases such as helium, neon, argon, krypton, xenon, etc. with better stability are selected to be mixed arbitrarily, or a mixed gas that is not easy to cause combustion and explosion such as ordinary air is adopted.

In a specific embodiment of the present utility model, the connection assembly 4 includes two connector bodies 5 connected end to end, each of the connector bodies 5 is provided with a hanging ring capable of being connected to a connecting wire 6, and the two connector bodies 5 are connected end to end through the cooperation of the connecting wire 6 and the hanging ring.

In one embodiment of the present utility model, the connector body 5 includes a base 7 and a fastener 8, and the base 7 is detachably connected to the fastener 8 through the airbag layer. It should be noted that when the base 7 and the fastener 8 are connected with each other through the air bag layer, destructive modification such as hole penetration is not required in the whole process, and the air bag layer always maintains its integrity.

In one embodiment of the present utility model, the base 7 and the fastener 8 may be made of elastic material or metal material, which is specifically determined according to practical needs.

In one embodiment of the present utility model, the right end of the fastener 8 is detachably sleeved on the left end of the base 7, and the air bag layer is located between the right end of the fastener 8 and the left end of the base 7.

In one embodiment of the present utility model, a base platen 701 is disposed at the right end of the base 7, and a base protrusion 702 is disposed at the left end of the base 7; the right end of the fastener 8 is provided with a fastener inner cavity 801, and the left end of the fastener 8 is provided with a fastener protruding part 802;

When the air bag type air conditioner is used, the base protruding portion 702 is propped against the air bag layer from inside to outside, the inner side face of the air bag layer is partially sleeved on the base protruding portion 702, the base pressing plate 701 is fully contacted with the inner side face of the air bag layer, the contact area of the base 7 and the air bag layer is increased by the base pressing plate 701, the pressure of the base 7 on the air bag layer is reduced, then the fastener inner cavity 801 is sleeved on the base protruding portion 702, and therefore the air bag layer is located between the base protruding portion 702 and the fastener inner cavity 801.

In one embodiment of the present utility model, a circle of base groove 703 is provided at the right end of the base protrusion 702, a fastener protrusion 804 matching with the base groove 703 is provided at the right end of the fastener cavity 801, and the fastener protrusion 804 is in snap connection with the base groove 703; in use, the snap fit of the fastener projections 804 with the base recess 703 prevents the fastener cavity 801 from falling out of the base projection 702.

Further, according to practical needs, a plurality of slots 805 that can be expanded and contracted may be provided on the side wall of the fastener cavity 801, and the peripheral wall of the base protruding portion 702 may be provided with inclined surfaces correspondingly. When the fastener 8 is fastened to the base 7, the side wall of the fastener cavity 801 can be simultaneously expanded outwards due to the slit 805 when the fastener cavity 801 contacts the inclined surface of the base protrusion 702; when reaching the base groove 703, the side wall of the inner cavity 801 of the fastener is restored to the previous shape, so that the fastener protrusion 804 and the base groove 703 are in snap connection, and the connection between the fastener 8 and the base 7 is firmer.

In one embodiment of the present utility model, the base protrusion 702 is the same size and shape as the fastener protrusion 802; in use, a plurality of fasteners 8 may be stacked and combined by sleeving the fastener cavity 801 on the fastener protruding portion 802.

In a specific embodiment of the present utility model, the outer layer 1 and the inner layer 2 may be provided with a plurality of air valves 3 or sensors, respectively, according to actual needs, and the air valves 3 may be air charging valves or air discharging valves. The sensor monitors parameters such as temperature, humidity and air pressure of the protection module or the buoyancy module respectively, and the air inlet valve and the air outlet valve can carry out corresponding air charging or air discharging operation on the protection module or the buoyancy module according to the monitored parameters, so that the stability of the double-layer air bag is ensured. Wherein, the charging valve, the exhaust valve and the sensor can be realized by adopting the prior art.

In a specific embodiment of the present utility model, the outer layer 1 has the same shape as the inner layer 2.

In a specific embodiment of the present utility model, the specific shapes of the outer layer 1 and the inner layer 2 may be determined according to actual needs, and preferably, the two shapes are the same and are rectangular, cylindrical or spherical.

In one embodiment of the present utility model, the outer layer 1 and the external object may be connected by a plurality of connection components 4 in multiple locations. The multi-position connection mode of the outer layer 1 and an external object can enable lifting force received by the outer layer 1 to be uniformly distributed on the surface of the outer layer 1 at multiple points, so that the stress intensity of a specific connection point of the outer layer 1 is reduced, and when static electricity is generated in the outer layer 1, the static electricity is immediately drained and released to the external object, so that risks such as combustion, explosion and the like possibly caused by the static electricity of the double-layer air bag are effectively prevented.

The specific working principle is as follows: (1) Firstly, the product adopts a double-layer air bag layer structure formed by an outer layer 1 and an inner layer 2, the outer layer 1 and the inner layer 2 are connected in a non-contact manner through a plurality of connecting components 4, and the outer layer 1 and the inner layer 2 are respectively provided with an exhaust valve or an inflation valve. The outer layer 1 is sleeved outside the inner layer 2 in a non-contact manner, the inner part of the outer layer 1 is filled with protective gas to serve as a protective module, and the inner layer 2 is filled with buoyancy gas to serve as a buoyancy module. The pressure of the protective gas of the outer layer 1 is larger than that of the buoyancy gas of the inner layer 2, and the buoyancy gas of the inner layer 2 can be prevented from escaping by the pressure of the outer layer 1. Even if the inner layer 2 is broken, the buoyancy gas escapes, the buoyancy gas naturally floats upwards from the protective gas of the outer layer 1 due to lighter density, and can overflow from the exhaust valve arranged on the outer layer 1, so that the escaped buoyancy gas is further prevented from gathering in the outer layer 1, and the potential risk of accidents such as combustion and explosion caused by the selection of flammable buoyancy gas such as hydrogen and the like is further reduced.

(2) Secondly, each connecting piece body 4 comprises two connecting piece bodies 5 and a connecting wire 6, each connecting piece body 5 comprises a base 7 and a fastener 8, the base 7 is arranged on the inner side of the air bag layer (the inner layer 1 or the outer layer 2), the fastener is arranged on the outer side of the air bag layer, the base 7 is propped against the air bag layer from inside to outside, and the fastener 8 is sleeved on the base 7 through the air bag layer; meanwhile, in order to reduce the pressure of the base 7 on the air bag layer, the base 7 can be provided with a base pressure plate 701 with a larger area, so that the base 7 is propped against the air bag layer from inside to outside and is connected with the fastener 8, the pressure of the air bag layer per unit area is smaller, and the air bag layer is further protected. Because the base 7 and the fastener 8 form a connecting structure between the inner layer 1 and the outer layer 2 in a non-destructive manner, the integrity of the inner layer 1 or the outer layer 2 as a single air bag layer is ensured, and the risk of damaging the air bag layer is further reduced.

(3) Again, since the base protruding portion 702 and the fastener protruding portion 802 are both identical in size and shape, and since the fastener inner cavity 801 is detachably sleeved on the base protruding portion 702, the fastener protruding portion 802 of one fastener 8 can be detachably connected with the fastener inner cavity 801 of another fastener 8, so that a plurality of fasteners 8 can be stacked and combined.

To sum up, the design adopts the unique design, and the whole product has simple structure, convenient maintenance, assembly and disassembly and strong practicability. Through the unique design of this product, even through using hydrogen to act as the buoyancy gas that is used for providing buoyancy, still can prevent the situation emergence of gasbag layer damage, hydrogen overflow or gathering through the multiple insurance measure of this design, the emergence of accidents such as explosion has been avoided to the maximum extent. The manufacturing cost of the product is lower, and the connection between the air bag layers or between the air bag layers and the airship is realized without damaging the air bag layers. In addition, the product can be respectively provided with the inflation valve, the exhaust valve and the sensor through the outer layer or the inner layer, and can supplement or release protective gas or buoyancy gas according to the needs in time, so that the safety of the product is further improved. The product can also recycle the protective gas or the buoyancy gas through the exhaust valve, thereby further saving precious gas resources and reducing the cost of the product.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is merely for convenience in describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The double-layer airbag is characterized by comprising two airbag layers, wherein the two airbag layers are respectively an outer layer (1) and an inner layer (2), the inner layer (2) is positioned in the outer layer (1), the outer layer (1) and the inner layer (2) are connected through a plurality of connecting components (4), and the outer layer (1) and the inner layer (2) are respectively and detachably connected with two ends of the connecting components (4);

The space between the outer layer (1) and the inner layer (2) forms a protection module and is filled with a protective gas, the inner space of the inner layer (2) forms a buoyancy module and is filled with a buoyancy gas, the pressure of the protective gas is larger than that of the buoyancy gas, and the density of the buoyancy gas is smaller than that of the protective gas.

2. The double-layer airbag according to claim 1, wherein the protective gas is one or more selected from helium, neon, argon, krypton, xenon, and a mixture thereof, or common air.

3. The double-layer airbag according to claim 1, wherein the buoyancy gas is selected from one or any mixture of hydrogen and helium.

4. A double-layer airbag according to claim 1, characterized in that the connecting assembly (4) comprises two connecting piece bodies (5) connected end to end, each connecting piece body (5) is provided with a hanging ring capable of being connected with a connecting wire (6) end to end, and the two connecting piece bodies (5) are connected end to end through the cooperation of the connecting wire (6) and the hanging ring.

5. The double-layer airbag according to claim 4, wherein the connector body (5) comprises a base (7) and a fastener (8), the base (7) being detachably connected to the fastener (8) via the airbag layer.

6. The double-layer airbag according to claim 5, wherein the right end of the fastener (8) is detachably sleeved on the left end of the base (7), and the airbag layer is positioned between the right end of the fastener (8) and the left end of the base (7).

7. The double-layer airbag according to claim 6, wherein a base pressing plate (701) is arranged at the right end of the base (7), and a base protruding part (702) is arranged at the left end of the base (7); the right-hand member of fastener (8) is equipped with fastener inner chamber (801), the left end of fastener (8) is equipped with fastener bulge (802), fastener inner chamber (801) cup joint on base bulge (702), the gasbag layer is located base bulge (702) with between fastener inner chamber (801).

8. The double-layer airbag according to claim 7, wherein a circle of base groove (703) is arranged at the right end of the base protruding portion (702), a fastener protrusion (804) matched with the base groove (703) is arranged at the right end of the fastener inner cavity (801), and the fastener protrusion (804) is in snap connection with the base groove (703).

9. The dual layer airbag of claim 8 wherein said base projection (702) is of uniform size and shape as said fastener projection (802).

10. Double-layer airbag according to claim 1, characterized in that the outer layer (1) and the inner layer (2) are respectively provided with a plurality of gas valves (3) or sensors, the gas valves (3) being gas-filled valves or gas-discharged valves.