阅读说明：本技术 一种用于抗震救灾的充气动力自生长装置 (Inflation power self-growing device for earthquake relief ) 是由 孟军辉 肖致行 马诺 李怀建 李文光 刘莉 于 2020-11-10 设计创作，主要内容包括：本发明涉及一种用于抗震救灾的充气动力自生长装置,属于探测技术领域。包括：用于收卷并导向压力囊体、维持整体气密、容纳并分配气路管线的主体；用于通过外翻生长实现前行与转向、跨越或绕过障碍、穿过细小孔隙并搭载尖端载荷,具有多腔室与转向辅助齿条的柔性充气压力囊体；用于传递传感信号或各种探测功能的尖端载荷。本发明利用充气囊体的柔性外翻运动时的方向指向性使其得以穿过细小孔隙。该方案可以较为有效地辅助尖端任务载荷工作,实现直行,转向于越障等任务职能,进而高效、安全、稳定地完成探测、导航、定位等任务。(The invention relates to an inflatable power self-growing device for earthquake relief, belonging to the technical field of detection. The method comprises the following steps: a main body for rolling and guiding the pressure bag body, maintaining the whole air tightness, accommodating and distributing the gas circuit pipeline; a flexible inflation pressure bag body which is used for realizing advancing and steering, crossing or bypassing obstacles, passing through a small pore and carrying a tip load through eversion growth and is provided with a plurality of chambers and a steering auxiliary rack; for transmitting sensor signals or tip loads for various probing functions. The invention utilizes the directional directivity of the flexible eversion movement of the air-filled bag body to lead the air-filled bag body to pass through small holes. The scheme can effectively assist the load work of the tip task, realize straight going, turn to the task functions of obstacle crossing and the like, and further efficiently, safely and stably complete the tasks of detection, navigation, positioning and the like.)

1. The utility model provides an aerify power self-growing device for earthquake relief work which characterized in that: the method comprises the following steps: a body, a pressure bladder, and a tip load;

one end of the pressure bag body is connected with the body to realize expansion; the tip load and the connecting wire thereof pass through the hollow part of the pressure capsule and are arranged outside the body; after the pressure bag body is turned outwards, the edge part is fixed on the body;

the pressure bag body is a hollow and double-layer soft structure; the two layers are respectively an inner layer and an outer layer; the inner layer and the outer layer are fixedly connected in partial areas, so that cavities are formed in non-connection areas, and the number of the cavities is required to be the same as that of the direction control chamber clamping blocks (7).

2. A self-growing inflatable soft body device according to claim 1, wherein: the cavity is provided with a flexible rack (21) structure; when the cavity is not ventilated, the two flexible racks are in a meshed state.

3. A self-growing inflatable soft body device according to claim 1, wherein: the body includes: the capsule body guiding and rewinding device comprises a shell (1), a retainer (2), a bottom cover (3), a capsule body guiding and rewinding device (4) and a capsule body clamping device (5); the capsule clamping device (5), a transmission shaft (11) in the capsule guiding and rewinding device (4), a capsule receiving wheel (10) and a receiving wheel shaft (9) are fixed in the retainer (5) with a shape matching; then the whole body is arranged in the shell (1) and the bottom cover (3);

the capsule clamping device (5) consists of a straight cavity clamping block (8), a plurality of direction control cavity clamping blocks (7), a fastening ring (6) and a sealing washer; a plurality of direction control chamber clamping blocks (7) are arranged around the straight chamber clamping block (8) and are fixed by a fastening ring (6) and a sealing washer; the straight cavity clamping block (8) is provided with a boss for matching with the direction control cavity clamping block, the center of the boss is provided with a vent hole A for the capsule to pass through, and the periphery of the boss is provided with holes communicated with the vent hole B; the direction control chamber clamping block (7) is provided with a vent hole B;

the balloon guiding and rewinding device (4) comprises: a servo motor (12), a transmission shaft (11), a capsule receiving wheel (10) and a receiving wheel shaft (11); the transmission shaft (11) is meshed with the capsule receiving wheel (10) with gear teeth and the servo motor (12) through gears to form transmission; the air bag is arranged between the bag body receiving wheel (10) and the receiving wheel shaft (9).

4. A self-growing inflatable soft body device according to claim 1, wherein: the tip load is a component for detection and is matched with the tip of the capsule in shape.

5. The method for realizing detection by adopting the device is characterized in that: the pressure bag body is a thin film hose which is divided into strip cavities and is unfolded through eversion; the central passage of the straight cavity clamping block (8) mainly provides a space for the capsule body to turn outwards; before inflation, the whole body is rolled onto a bag body receiving wheel (10) in the body, and two ends of the bag body receiving wheel (10) and a clamping device (5) which are fixed on the body are respectively arranged at the two ends of the bag body; when the capsule body is everted, the closed space between the inner layer and the outer layer is used as a straight-going chamber (19) and forms a pressure control loop with the body, and along with the increase of the pressure of a medium in the pressure capsule body, the capsule body is outwardly turned out from a vent hole A in the middle of a clamping block of the straight-going chamber to grow, and the tip load is pushed to be kept at the tip of the capsule body and move forwards; because the inflatable bag body has high flexibility and the unfolded part is kept relatively static with the environment, the inflatable bag body still has certain passing capacity for gaps and channels with the size smaller than the diameter of the bag body.

6. The method for realizing steering by adopting the device is characterized in that: suspending or slowing down the air supply to the straight-going chamber, and simultaneously starting an air path pipeline of a direction control chamber which needs to turn in the opposite direction to supply air; at the moment, the originally meshed flexible rack in the direction control chamber can be vertically disengaged and generates dislocation under the expansion action of the direction control chamber; then, stopping gas supply to the direction control chamber, maintaining pressure and recovering gas supply to the straight chamber; at the moment, the flexible rack can generate asymmetric meshing under the expansion action of the straight-going chamber, the elastic force of the flexible rack can drive the pressure capsule to bend towards the opposite direction, and other parts are not influenced.

Technical Field

The invention relates to an inflatable power self-growing device for earthquake relief, belonging to the technical field of detection.

Background

With the improvement of the technological level, various advanced detection devices gradually show unique advantages in the emergency rescue task after earthquake. Compare traditional rescue scheme, the adoption in the rescue task of this type of equipment all has apparent positive significance in promoting search and rescue efficiency, ensuring many aspects such as personnel's safety, if the university's of northeast Japan scientific research personnel once developed a snake type robot, the camera has been installed at the top, can be used to carry out the search and rescue in rubble, the mud way that large robot can't get into. But the whole structure still belongs to a rigid structure, is difficult to pass through gaps smaller than the diameter of the structure, and the limited length also limits the effective range of search and rescue. Various bionic insect type unmanned units still have various defects in the aspects of space motion capability, communication, endurance and the like, and are still not practical.

Generally, the traditional search and rescue detection platform still has a plurality of defects, firstly, the traditional detection equipment is limited by the requirements of energy and communication, often has a certain volume and rigid structure, and is difficult to enter the ruins caused by earthquakes to carry out detection work; secondly, the traditional detection equipment usually adopts a wireless method for communication and signal transmission, and due to the damage of electric appliances in earthquake-stricken areas, a large amount of radio frequency interference exists, and the complex electromagnetic environment influences the effect of wireless communication to a great extent. Finally, the rigid structure of the traditional detection equipment often has relatively precise mechanisms and elements, and the stable work of the system is often difficult to guarantee in a task disaster area accompanied by severe conditions such as dust, electric sparks, water system disorder and the like after an earthquake.

Therefore, in order to efficiently and reliably carry out rescue work in the ruins environment and detect and locate the interiors of the ruins, a novel unmanned mobile device needs to be designed, after a path easy to travel is damaged by an earthquake or blocked by the ruins in an earthquake area, tiny narrow channels in the size range of centimeters such as gaps among the ruins are fully utilized, and therefore 'pore-free non-entering' omnibearing search and rescue is achieved, and data and image support is provided for subsequent rescue work.

Disclosure of Invention

The invention aims to provide an inflatable power self-growing device for earthquake relief, aiming at the problems that the internal environment of ruins in earthquake relief is complex and the traditional rigid robot is difficult to access, in particular to a single-person-carried tip-everting self-growing and direction-controlled pressure-driven soft moving device utilizing a tiny narrow passage in the centimeter-sized size range of a building door and window gap, an underground sewage discharge outlet, a ruins structure gap and the like. As shown in figure 1, the invention realizes the rapid passing of narrow and tortuous gaps loaded by tips of miniature detectors and the like, and improves the sensing, positioning and navigating capabilities of the internal environment of the ruins. In order to achieve the purpose, the invention adopts the following technical scheme:

an inflatable power self-growing device for earthquake relief work, comprising: a body, a pressure bladder, and a tip load;

the body includes: the device comprises a shell, a retainer, a bottom cover, a bag body guiding and rewinding device and a bag body clamping device; the capsule clamping device, a transmission shaft in the capsule guiding and rewinding device, a capsule receiving wheel and a receiving wheel shaft are fixed in a retainer with a shape matching; then the whole body is arranged in the shell and the bottom cover;

the capsule clamping device consists of a fastening ring, a straight cavity clamping block, a plurality of direction control cavity clamping blocks and a sealing washer; the plurality of direction control chamber clamping blocks are arranged around the straight chamber clamping block and are fixed by the fastening ring and the sealing washer; the straight cavity clamping block is disc-shaped, the middle part of the straight cavity clamping block is provided with a boss used for controlling the cavity clamping block in a matching direction, the center of the boss is provided with a vent hole A for the capsule to pass through, and the periphery of the boss is provided with holes communicated with the vent hole B; the direction control cavity clamping block is provided with a vent hole B;

the sac body guiding and rewinding device comprises: the bag body collecting device comprises a collecting wheel shaft, a bag body collecting wheel, a transmission shaft and a servo motor; the transmission shaft is provided with 3 gears, and the gears at two ends are used for being meshed with the bag body containing wheel; the third gear is used for meshing with a gear of the servo motor to form transmission; the air bag is arranged between the containing wheel shaft and the bag body containing wheel;

the pressure bag body is a hollow and double-layer soft structure; the two layers are respectively an inner layer and an outer layer; the inner layer and the outer layer are fixedly connected in partial areas, so that cavities are formed in non-connection areas, and the number of the cavities is the same as that of the clamping blocks of the direction control chamber;

the tip load is a component for detection;

the cavity is provided with a flexible rack structure; when the cavity is not ventilated, the two flexible racks are in a meshed state; steering can fix the change of the curvature of the capsule body at a certain position;

the working process is as follows: when the device works, the external air source is required to provide air pressure and flow so as to drive the software to grow outwards. When the air pipe runs straight, the air pipe needs to penetrate through the bottom cover and inflate the body. At this time, the gas pipeline of the direction control chamber is closed, and the gas source, the body and the pressure capsule form a loop. Under the action of the internal pressure, the capsule body is outwards turned out from the vent hole A in the middle of the straight-going chamber clamping block to grow, and the tip load is pushed to be kept at the tip of the capsule body and moves forwards. Because the inflatable bag body has higher flexibility and the unfolded part and the environment keep relatively static, the inflatable bag body still has certain trafficability to gaps and channels with the size smaller than the diameter of the bag body;

when the steering is carried out, the air supply to the straight-going chamber needs to be suspended or slowed down, and meanwhile, the air pipeline of the direction control chamber which needs to be steered in the opposite direction is opened for air supply. At this point, the originally engaged flexible racks in the direction control chamber will be vertically disengaged and undergo a dislocation under the expansion of the direction control chamber. Subsequently, the gas supply to the direction control chamber is stopped and pressure is maintained, and the gas supply to the straight chamber is resumed. At the moment, the flexible rack can generate asymmetric meshing under the expansion action of the straight-going chamber, the elastic force of the flexible rack can drive the pressure capsule to bend towards the opposite direction, and other parts are not influenced.

Advantageous effects

Compared with the existing rigid body robot and the traditional soft body robot, the inflatable power self-growing device for earthquake relief has the following beneficial effects:

1. the inflation power self-growing device for earthquake relief has simple structure, is mainly made of easily obtained and processed materials, and has low production and processing cost.

2. The connection between the tip load of the inflatable power self-growing device for earthquake relief and the control platform is a wired connection realized through a photoelectric cable, and the inflatable power self-growing device has the advantages of strong anti-interference capability, large detection radius, long endurance time and the like.

3. The expansion part of the inflatable power self-growing device for earthquake relief keeps static with the surrounding environment, only the tip continuously turns outwards to grow, and the soft characteristic of the inflatable structure is beneficial to passing through tiny pores in the ruins and avoiding scratching.

Drawings

Fig. 1 is a schematic diagram of the use principle of an inflation power self-growing device for earthquake relief.

Fig. 2 is a structure of an inflatable power self-growing device body for earthquake relief.

Fig. 3 shows the specific components of the capsule holding device.

Fig. 4 shows the specific components of the balloon guiding and rewinding device.

Fig. 5 shows a specific composition of the cage.

Fig. 6 shows a specific composition of the housing.

Fig. 7 shows the specific composition of the pressure bladder.

FIG. 8 is a schematic view of the straight travel principle of the pressure bladder; FIG. a is a schematic structural view of an inflatable power self-growing device for earthquake relief; figure b is a schematic diagram of the growth principle of the pressure bladder.

Fig. 9 is a schematic view of the pressure bladder turning principle.

Wherein, 1 is a shell, 2 is a retainer, 3 is a bottom cover, 4 is a capsule guiding and rewinding device, 5 is a capsule clamping device, 6 is a fastening ring, 7 is a direction control chamber clamping block, 8 is a straight-going chamber clamping block, 9 is a containing wheel shaft, 10 is a capsule containing wheel, 11 is a transmission shaft, 12 is a servo motor, 13 is an upper retainer, 14 is a middle retainer, 15 is a lower retainer, 16 is a ground pin, 17 is an upper cover, 18 is a bottom cover, 19 is a straight-going chamber, 20 is a direction control chamber, and 21 is a flexible rack.

Detailed Description

The invention is mainly used for sensing and searching internal personnel in the ruins after earthquakes, as shown in figure 1. To better illustrate the objects and advantages of the present invention, the following description uses an assembled pneumatic self-growing device for earthquake relief to verify and explain the functions of going straight, turning and obstacle crossing.

Example 1

In this embodiment, the overall configuration of the apparatus remains the same as described in the summary of the invention. Wherein the body includes: the capsule body guiding and rewinding device comprises a shell 1, a retainer 2, a capsule body guiding and rewinding device 3 and a capsule body clamping device 4; the capsule clamping device 4, the transmission shaft 10 in the capsule guiding and rewinding device 3, the capsule receiving wheel 9 and the receiving wheel shaft 8 are fixed in the retainer 2 with adaptive shape and are integrally arranged in the shell 1.

The capsule clamping device consists of a fastening ring 5, a straight-going chamber clamping block 7, 4 direction control chamber clamping blocks 6 and a sealing washer, and is shown in figure 3; the straight cavity clamping block 7 is disc-shaped, the middle part of the straight cavity clamping block is provided with a boss for matching with the direction control cavity clamping block, the center of the boss is provided with a vent hole A for the capsule to pass through, and the periphery of the boss is provided with holes communicated with the vent hole B; the direction control cavity clamping block 7 is provided with a vent hole B;

the capsule guiding and rewinding device is composed of 1 servo motor 11, 1 transmission shaft 10, 1 capsule receiving wheel 9 and a receiving wheel shaft 8, as shown in fig. 4. The servo motor 11 provides the actuating force when the soft body is rolled back, and the transmission shaft 10 transmits the rolling motion of the servo motor 11 to the capsule receiving wheel 9 through the 1-face bevel gear and the pair of straight gears. The end plate of the capsule containing wheel 9 is provided with gear teeth meshed with the transmission shaft 10 and plays a role of rolling the capsule, and the capsule containing wheel 9 is provided with a groove for clamping the capsule together with the containing wheel shaft 8.

The cage is divided into an upper part, a middle part and a lower part, as shown in fig. 5. The upper retainer 12 is mainly used for accommodating and positioning the capsule clamping mechanism 4, and the middle retainer 13 and the lower retainer 14 jointly position the transmission shaft 10 and the capsule receiving wheel 9.

The housing is divided into an upper cover 16, a base 17, feet 15, a sealing ring and a fastener, as shown in fig. 6. The lower margin is used for keeping body ground connection stable, and inside part and device are held jointly to other parts, fixed servo motor 11 and mainly maintain entire system's airtight.

The pressure pipeline is a hose for providing gas pressure, penetrates through the shell to be connected with the capsule clamping device 4 and the gas source, and respectively supplies gas for different gas chambers. And each pipeline is connected with 1 normally closed electromagnetic directional valve, 1 manual ball valve and 1 overflow valve in series and is respectively used for controlling the start or stop of a cavity and manual emergency stop and overload protection.

The pressure bladder is a thin film hose divided into strip cavities and is unfolded by eversion. The central passage of the straight chamber clamp block 7 provides space for the bladder eversion, and the four surrounding passages serve as direction control chambers 19. Before inflation, the whole body is rolled up to the bag body containing wheel 9 in the body, and the two ends of the bag body clamping device 4 and the bag body containing wheel 9 are respectively fixed on the body. When the capsule is everted, the closed space between the inner and outer layers is used as a straight chamber 18 and forms a pressure control circuit with the body, and the tip capsule is everted continuously and grows forwards along with the increase of the pressure of the medium in the pressure capsule, as shown in fig. 8.

The present implementation is aimed at testing the straight-going function of an inflatable power self-growing device for earthquake relief, whereby the directional control chamber 19 is closed all the way. The adopted pressure bag body is made by heat sealing four PE film tubes with the rolling width of 80mm and the single-layer thickness of 0.05mm, the total thickness is 10m, and the expandable maximum length is 5 m. The direction control chamber in the inflation line is not activated and tip load is not carried. The implementation site is a plastic flat ground, and the measurement range is 2.5 m.

Three tests were performed at different air source pressures, respectively. In the implementation, along with the promotion of air supply pressure, the growth rate of pressure utricule increases thereupon, and the body ground connection is good, and pressure utricule forward speed is stable and do not take place skew and skid. Generally speaking, the straight-going function is preferably implemented and is expected.

Gauge pressure (kpa)	Time(s)	Average velocity (m/s)
			0	12	0.21
1	6.8	0.37
			2	3.4	0.74

Example 2

In the present embodiment, the overall configuration of the apparatus is kept consistent with the summary of the invention. Wherein the body includes: the capsule body guiding and rewinding device comprises a shell 1, a retainer 2, a capsule body guiding and rewinding device 3 and a capsule body clamping device 4; the capsule clamping device 4, the transmission shaft 10 in the capsule guiding and rewinding device 3, the capsule receiving wheel 9 and the receiving wheel shaft 8 are fixed in the retainer 2 with adaptive shape and are integrally arranged in the shell 1.

The capsule clamping device 4 consists of a fastening ring 5, a straight-going chamber clamping block 7, 4 direction control chamber clamping blocks 6 and a sealing washer; a plurality of direction control chamber clamping blocks 6 are arranged around the straight chamber clamping block 7 and are fixed by a fastening ring 5 and a sealing gasket; the straight cavity clamping block 7 is in a disc shape, and 4 circular holes for the air pipeline to pass through are uniformly distributed. The bag body holding device 4 plays a role in keeping the overall shape of the device, positioning the bag body and other parts, providing air channels and the like. The direction control chamber clamping block 6 is a petal-shaped table, and the middle part of the direction control chamber clamping block is provided with 1 round hole for the air pipeline to pass through. The 4 directional control chamber clamping blocks 6 cooperate with the rectilinear chamber clamping blocks 7 to form a complete truncated cone shape to cooperate with the fastening ring 5. The fastening ring 5 is used for being matched with the chamber clamping block group and providing pre-tightening force to clamp the pressure bag body. The sealing washer is used to maintain the air-tightness of the clamping device 4 and provide pre-tightening force.

The capsule guiding and rewinding device 3 comprises: a containing wheel shaft 8, a capsule containing wheel 9, a transmission shaft 10 and a servo motor 11; the transmission shaft 10 is provided with 3 gears, and the gears at two ends are used for being meshed with the capsule body receiving wheel 9; the third gear is used for meshing with the gear of the servo motor 11 to form transmission; the air bag is arranged between the containing wheel shaft 8 and the bag body containing wheel 9;

the pressure bag body is a hollow and double-layer soft structure; the two layers are respectively an inner layer and an outer layer; the inner and outer layer sub-areas are fixedly connected such that the non-connected areas form cavities, the number of which is the same as the number of direction control chamber clamping blocks 6 in this embodiment.

Flexible splines 20 are fixedly attached to both sides of the inner surface of the direction control chamber 19. When the bicycle is going straight, the direction control chamber 19 is not inflated, and the flexible racks 20 on both sides are meshed with each other, so that the shape of the unfolded part is not influenced by steering. When turning, the control chamber 19 in the opposite direction accumulates air and moves straight, the flexible rack 20 is engaged asymmetrically, and the capsule is bent and turned under the action of the elasticity, the principle of which is shown in fig. 9.

The tip load is a task load carried at the tail end of the capsule body, the shape of the tip load is matched with that of the tip of the capsule body, the tip load is pushed forwards along with the growth of the tip load, and a signal instruction is received through photoelectric cables or wireless transmission. And a micro camera, an infrared detector, an electronic interference unit and the like can be loaded according to task requirements.

The implementation aims to test the steering function of the inflatable power self-growing device for earthquake relief. An inflation power self-growing device for earthquake relief is the same as that in the embodiment 1. The implementation site is a plastic flat ground with rigid cubic obstacles, and the measurement range is 2.5m by 2.5m²The gas source provides atmospheric pressure (0 gauge pressure). The implementation is divided into two control modes, namely the simultaneous starting of the straight chamber and the direction control chamber (mode 1) and the alternate starting of the straight chamber and the direction control chamber (mode 2).

In the barrier-free implementation, the mode 1 rack is always disengaged, and only the tension of the external control chamber causes a slight bending of the pressure bladder. Mode 2 achieves asymmetric meshing of the racks, bending significantly better than mode 1, and the degree varies with time of alternation. In implementations with rigid obstacles, both modes can select a predetermined direction around the obstacle, but the direction controllability of mode two is significantly stronger. Generally speaking, under a proper control mode, the implementation of the steering function is ideal and is expected.

Example 3

The present embodiment is intended to test the function of an inflatable power self-growing device for earthquake relief work through different pores and narrow channels, and an inflatable power self-growing device for earthquake relief work is the same as that of embodiment 2. The implementation site is a plastic flat ground with a partition board with square and round small holes and a channel with square and round cross sections, in order to ensure that the hydraulic diameter is the same, the side length of the square hole is 30mm, the radius of the round hole is 15mm, the thickness of the partition board is 10mm, and the length of the channel is 1 m.

In practice, the pressure bladder can quickly pass through the separator orifice or access channel after a brief occlusion (2 to 3 seconds), and due to the larger actual area, the occlusion time in the square hole is slightly shorter than that in the circular hole. And the straight-going speed is obviously higher than the free straight-going speed due to the constant flow of the air source in the channel. In general, the function of the through-holes and the narrow channels is preferably implemented, and is expected.

The function implementation result of the inflation power self-growing device for earthquake relief is obtained according to the practice, the beneficial effects 1 and 3 of the invention are reflected, the basic principle related to the beneficial effect 2 is consistent with the function exhibited in the embodiment, the function can be realized by adjusting the geometric dimension of the device, and no additional technical difficulty exists. The content disclosed by the invention can provide detection, positioning and navigation support inside ruins for earthquake relief work, and has wide application prospect and benefit.

The above detailed description is intended to illustrate the objects, aspects and advantages of the present invention, and it should be understood that the above detailed description is only exemplary of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.