CN211568276U - Buffering device for airship - Google Patents

Abstract

A buffer device for an airship comprises a buffer air cushion and an inflating device, wherein the buffer air cushion comprises an inflatable framework structure and an outer bag sleeved outside the framework structure, an inflating port connected with the inflating device is arranged on the framework structure, and an exhaust hole and a connecting piece used for being connected with the airship are arranged on the outer bag. The utility model discloses according to momentum and energy conservation, when the airship descends, fashioned outer bag is discharged the air from the exhaust hole by compression, and the gas that discharges away possesses sufficient speed and has certain energy, absorbs the impact energy of airship to ground to realize the buffer protection of airship.

Description

A buffer device for an airship

technical field

The utility model is used in the field of aerostats, in particular to a buffer device for an airship.

Background technique

As a lighter-than-air aircraft, an airship can be used in many fields such as transportation, transportation, disaster relief, and scientific experiments. The airship usually needs to carry a variety of power, energy, and mission equipment. These devices are generally installed on the airship pod set at the bottom of the airship. When the airship lands, the pod contacts the ground first, because the airship has a certain landing speed when it lands. In the process of descending, various uncontrollable factors such as excessive speed or sudden environment often lead to excessive impact overload when the pod falls and touches the ground, resulting in damage and loss of power equipment or mission equipment.

Chinese utility model patent CN201120420972 discloses an airship buffer device that can replace the landing gear, which adopts the air squeeze flow inside the sealed bag to achieve buffering. However, this structure will cause secondary damage to the rebound of the buffer equipment, and at the same time, a large amount of air source is required to inflate and maintain the pressure of the bag, resulting in troublesome air source storage, and slow inflation and forming time, which affects the usability of the product.

Utility model content

The technical problem to be solved by the utility model is: to solve the above problems, and to provide a buffer device that can realize landing buffering without secondary damage.

The technical scheme adopted by the utility model is: a buffer device for an airship, comprising a buffer air cushion and an inflator, wherein the buffer air cushion includes an inflatable skeleton structure and an outer bag sleeved outside the skeleton structure, and the skeleton structure There is an inflation port connected with the inflation device, and the outer bag is provided with a vent hole and a connecting piece for connecting with the airship.

In the above scheme, when the airship lands, the skeleton structure is inflated to open the outer bag. When the outer bag is in contact with the ground, it is gradually compressed to discharge the air from the exhaust hole. According to the conservation of momentum and energy, the discharged gas has enough gas. The speed has a certain amount of energy, which absorbs the impact energy of the airship on the ground, so as to realize the buffer protection of the airship.

Preferably, the skeleton structure is in the shape of a quadrangular pyramid after being inflated, and the inflation port is arranged on the edge of the upper surface of the skeleton structure.

In the above solution, the quadrangular pyramid-shaped skeleton structure is conducive to stable contact with the ground.

Preferably, the air vent is arranged on the side of the outer bag, and the connecting member is a cord buckle arranged on the upper surface of the outer bag.

In the above solution, when the bottom surface of the outer bag is in contact with the ground, the air vent can discharge the compressed air from the side to keep the airship stable.

Preferably, the inflation device includes a fan and a trachea, the upper surface of the outer bag is provided with a through hole for the trachea to pass through, one end of the trachea is connected to the fan, and the other end passes through the through hole of the outer bag and the skeleton structure is inflated port connection.

In the above solution, the fan is arranged outside the outer bag to avoid damage to the fan when landing.

Preferably, it also includes a monitoring system, the monitoring system includes an air pressure sensor, a distance sensor, and a control mainboard; the air pressure sensor is arranged at the air inlet of the skeleton structure, and both the air pressure sensor and the distance sensor are connected to the control mainboard.

In the above scheme, the distance between the airship and the ground is monitored by the distance sensor, and the air pressure of the skeleton structure is monitored by the air pressure sensor, so that the buffer device can be precisely controlled.

Preferably, the cushioning air cushion is arranged on the inner side of the shawl, and the shawl is provided with an electric heating wire, and the electric heating wire is connected with the control main board.

In the above solution, the shawl can avoid wind resistance and unexpected winding interference caused by the swinging of the cushioning air cushion in the air, and improve the safety and reliability of the airship during operation; when landing, only the heating wire can be heated to burn the shawl and release the buffer. air cushion.

Preferably, the fan is arranged on the side of the pod of the airship, the distance sensor and the control board are all arranged in the pod, and the shawl is connected to the bottom surface of the pod.

In the above solution, only the shawl and the cushioning air cushion are arranged on the bottom surface of the pod to prevent other devices from colliding with the ground when landing, thereby reducing damage.

Preferably, both the skeleton structure and the outer bag are made of flexible materials.

In the above solution, the flexible material can not only reduce the weight of the airship, but also facilitate the rapid prototyping of the skeleton structure and the outer bag during buffering.

The beneficial effects of the utility model are as follows: effective buffering can be achieved without rebound or rollover, and secondary damage can be avoided; the skeleton structure can be filled and formed only with less air source, and there is no need to spend a lot of money for forming the outer bag. Origin, reduce the molding time of the bag body, and reduce the weight of the airship; the cushioning air cushion is folded and folded together with a shawl, which avoids wind resistance and unexpected winding interference caused by the air cushion swinging in the air when the airship is flying. System safety and reliability.

Description of drawings

Fig. 1 is the schematic diagram that the utility model is installed on the airship;

Fig. 2 is the schematic diagram of the skeleton structure in the present utility model;

Fig. 3 is the schematic diagram of the outer bag in the present utility model;

Fig. 4 is the schematic diagram of the utility model assembling with the airship pod;

Fig. 5 is the schematic diagram of the inflation process of the present invention;

6 is a schematic diagram of the cushioning air cushion in the present invention when it is folded;

FIG. 7 is a schematic diagram of the cushioning air cushion of the present invention when it is released.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1 to 7, a buffer device for an airship consists of a buffer air cushion 6, an inflation device and a monitoring system. The cushioning air cushion 6 includes an inflatable skeleton structure 1 and an outer bag 7. Both the skeleton structure 1 and the outer bag 7 are made of flexible materials. The skeleton structure 1 is installed in the outer bag 7, and the upper surface of the outer bag 7 is sewn with a rope buckle. 12, for connecting with pod 5.

The skeleton structure 1 is used to inflate the cushioning air cushion 6, which is sealed and airtight.

The outer bag 7 is the main body that buffers and protects the pod 5 when the cushioning air cushion works, and vent holes of a specified size are opened on the side of the outer bag to discharge the gas when the cushioning air cushion is working.

The inflating device is used to inflate the skeleton structure 1, and includes a fan 8 and an air pipe 9. The two ends of the air pipe 9 are respectively connected with the fan 8 and the air inlet 2 of the skeleton structure.

The monitoring system includes a control board, an air pressure sensor 3, and a distance sensor, wherein the air pressure sensor 3 is used to monitor the pressure intensity in the skeleton structure 1 and feed back the signal to the control board, and the distance sensor is used to monitor the distance between the pod 5 and the ground and feed back the signal to the control board. Control the main board, after receiving the signal, the control main board controls the work of the inflatable fan 8 .

The working method of the present invention is as follows: before the airship 4 takes off, the skeleton structure 1 is installed in the outer bag 7, the outer bag 7 is connected to the bottom surface of the pod 5, and the buffer air cushion 6, the inflation device and the monitoring system are connected.

During the landing process of the airship 4, when it falls to a certain height at a certain speed, the distance sensor monitors the height of the pod 5 from the ground. When the monitored height reaches the specified value, the signal is fed back to the control board, and the control board controls the fan 8 to start working. The inflation fan 8 inflates the gas into the skeleton structure 1 through the trachea 9; the skeleton structure 1 is inflated and expanded to gradually open and shape the outer bag 7; when the air pressure in the skeleton structure 1 reaches a specified value, the air pressure sensor 3 monitors and feeds back the analog signal Control the main board, the control main board converts the signal to control the fan 8 to stop inflating, and the buffer air cushion 6 inflates and forms. The airship 4 continues to land. When the pod 5 begins to contact the ground, the buffer air cushion 6 installed on the bottom surface of the pod first contacts the ground and is gradually compressed to discharge the air. According to the conservation of momentum and energy, the discharged gas has enough gas. The speed of the airship has a certain amount of energy, which absorbs the impact energy of the airship on the ground, so as to realize the buffer protection of the airship.

Claims (8)

1. A buffer device for an airship, comprising a buffer air cushion (6) and an inflator, wherein the buffer air cushion (6) comprises an inflatable skeleton structure (1), sleeved on the skeleton structure (1) An external outer bag (7), the skeleton structure (1) is provided with an inflatable port (2) connected with an inflatable device, the outer bag (7) is provided with a vent hole (71) and is used for connecting with the airship. connected connector. 2. A kind of buffer device for airship as claimed in claim 1, is characterized in that, described skeleton structure (1) is in the shape of quadrangular pyramid after being inflated, and described inflatable port (2) is arranged on the skeleton The edge of the upper surface of the structure (1). 3. A kind of buffer device for airship as claimed in claim 2, is characterized in that, described vent hole (71) is arranged on the side surface of outer bag (7) respectively, and described connector is arranged in outer bag (7) ) on the top surface of the rope buckle (12). 4. A buffer device for an airship according to claim 1, wherein the inflatable device comprises a fan (8) and a trachea (9), and one end of the trachea (9) is connected to the fan (8) , and the other end is connected to the inflation port (2) of the skeleton structure (1) through the outer bag. 5. The buffer device for an airship according to any one of claims 1 to 4, further comprising a monitoring system, wherein the monitoring system comprises an air pressure sensor (3), a distance sensor, and a control mainboard; The air pressure sensor (3) is arranged at the air inlet (2) of the skeleton structure, and the air pressure sensor (3) and the distance sensor are both connected to the control main board. 6. A buffer device for an airship according to claim 5, characterized in that a sackcloth (10) is provided outside the buffer air cushion (6), and an electric heater is provided inside the sockcloth (10). A wire (11), the heating wire (11) is connected with the control main board. 7. a kind of buffer device for airship as claimed in claim 6 is characterized in that, described fan (8) is arranged on the side of pod (5) of airship, and described distance sensor and control main board are all arranged on pod (5) side of airship Inside the cabin (5), the shawl (10) is connected to the bottom surface of the pod (5). 8. The buffer device for an airship according to any one of claims 1 to 4, wherein the skeleton structure (1) and the outer bag (7) are both made of flexible materials.

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