CN118124806A - Stable lifting device for helicopter rescue - Google Patents

Abstract

The invention discloses a stable lifting device for helicopter rescue, which belongs to the technical field of rescue helicopter accessories and comprises a cable, wherein one end of the cable is connected with an assembly part, the assembly part is provided with a hook and is connected with a platform, the assembly part comprises a base body, a sleeve body is connected in a sliding manner in the base body, the tail end of the cable is connected with a column sleeve, the column sleeve is in threaded connection with the sleeve body, the hook is arranged at the bottom of the base body, a base is arranged at the bottom end of the sleeve body, a first spring is connected between the base and the base body, guide pieces are uniformly distributed on the side of the base, each guide piece comprises a clamping sleeve, the clamping sleeve is fixed on the base, clamping grooves are uniformly distributed on the inner wall of the base body, the clamping sleeve can lift and rotate relative to the clamping grooves, and an air bag is sleeved in the clamping sleeve. The invention can realize stable lifting and hanging, and improves rescue efficiency.

Description

Stable lifting device for helicopter rescue

Technical Field

The invention relates to the technical field of rescue helicopter accessories, in particular to a stable lifting device for helicopter rescue.

Background

The rescue helicopter is used for emergency rescue, can reach the operation sites inaccessible to water and land more quickly, performs the work of searching and rescue, material transportation, aerial command and the like, and is the most effective emergency rescue commonly adopted by a plurality of countries in the world. Three general methods are adopted for helicopter rescue, the first is direct helicopter landing rescue; the second is that the helicopter hovers, and slings are put in to rescue with ambulance men; thirdly, the helicopter hovers, and a rope ladder is put in for rescue. Therefore, when survivors need to be rescued, the lift device needs to be used for timely rescuing the survivors with different heights.

When the lifting device in the prior art is installed, the lifting device can only be matched with a helicopter of a fixed type for use, the application range of the device is limited, and when a survivor is not needed to be rescued, the trafficability of the helicopter is greatly reduced because the lifting device is installed at the bottom of the helicopter, so that the lifting device is required to be dismounted when rescue work is not carried out, but a large number of fixed structures are required to be dismounted by the traditional device, the dismounting difficulty of the device is greatly increased, and the dismounting efficiency of the device is reduced. When utilizing elevating gear to rescue, survivors get into the overhead bin after, personnel control lifting rope on the helicopter rises, carries survivors and leave accident place, and when the helicopter marches, the hanging flower basket receives air resistance and can remove to the latter of helicopter direction of movement, leads to hanging flower basket gesture slope, is fallen down easily by the rescue personnel and even drops, exists great security risk.

The US patent application number 14795843 discloses a helicopter hoisting system comprising a lifting device, a lighting system, a distance measuring device, a camera, a communication system, a display device, and further comprising a smart hook for measuring the load, the lighting being able to illuminate in different ways depending on the measured load on the cable, on the other hand the system being able to present the measured parameters to the crew or other observers of the helicopter. The invention has room for improvement in terms of the following technical problems: the hoisted device can shake and rotate when being winded in the air, and the rope body pulled and lifted is pulled, so that abrasion is easy to cause, and risks exist; the device to be hoisted has larger instant impact on the ground contact and is easy to cause damage.

Disclosure of Invention

The invention aims to provide a stable lifting device with high stability for helicopter rescue.

In order to solve the technical problems, the invention specifically provides the following technical scheme:

the utility model provides a helicopter rescue is with stable elevating gear, includes the hawser, and hawser one end is connected with the assembly part, and the assembly part is equipped with the couple and is connected with the platform, and the assembly part includes the base member, and the base member sliding connection has the cover body, and hawser end-to-end connection has the post cover, post cover and cover body threaded connection, and the couple is located the base member bottom. The sleeve body is arranged in a threaded fit manner with the column sleeve, so that the assembly and disassembly are convenient, and the connection speed of the platform and the cable is improved in case of accident.

Preferably, the bottom end of the sleeve body is provided with a base, a first spring is connected between the base and the base body, and guide elements are uniformly distributed on the side of the base. The sleeve body is fixed with the base, the sleeve body forms elastic connection with the base body through the first spring, when the platform shakes because of the load changes, the sleeve body upwards slides through compressing the first spring relative base body, thereby buffering shakes in order to reduce the interference of post sleeve and sleeve body threaded connection department, prevent that the screw thread from sliding the silk and leading to the cooperation inefficacy, simultaneously, compressed first spring can reduce the cracked possibility of pulling force bump leading to cable connection department, the couple is in compression all the time under the state that is connected with the platform, the situation that is stretched can not appear to first spring promptly, avoid first spring excessively to draw and lead to losing elastic deformation resilience.

Preferably, the guide piece comprises a clamping sleeve, the clamping sleeve is fixed on the base, clamping grooves are uniformly distributed on the inner wall of the base body, the clamping sleeve can lift and rotate relative to the clamping grooves, and an air bag is sleeved inside the clamping sleeve. The draw-in groove forms the direction of sliding motion to the cutting ferrule, reduce the inside possibility of cutting ferrule slope striking base member, reduce and interfere in order to improve assembly stability, when there is the unbalanced load on the platform or receive lateral external force action, the platform takes place rotatoryly through the couple carrying the base member, through the rotation of the relative cutting ferrule of draw-in groove, can reduce the cover body and carry the post cover of cover body and the rotatory range of hawser, avoid the hawser to last torsion to lead to rope body structural strength to weaken on the one hand, influence the security that the platform hung, on the other hand, the cover body can rotate relative base through cutting ferrule and draw-in groove, rotary motion is to the interference consumption of rocking of cover body transmission to the base member, thereby stabilize the base member and the platform that connects of below, help stabilizing the platform straightness when helicopter flight gesture changes, the security in the improvement flight.

Preferably, the clamping sleeve is provided with an outer cambered surface, the clamping groove is provided with an inner cambered surface, the outer cambered surface is matched with the inner cambered surface, the clamping groove is also provided with a vertical surface, the tail end of the air bag is positioned outside the clamping sleeve, and the tail end of the air bag is spaced from the adjacent vertical surface. The setting of extrados and intrados is used for the cutting ferrule to be directed for the lift of draw-in groove, simultaneously, guaranteed the rotatory centrality of cover relative base member, when the platform rocked and takes place to rotate, the relative cover body of base member is rotatory, this moment, the extrados of base member forms rotatory direction to the intrados of cutting ferrule, simultaneously, the gasbag that stretches out the cutting ferrule both ends can synchronous rotation and striking the vertical face of draw-in groove, on the one hand, elastic deformation after pressing through the gasbag is to the interference absorption of vibrations, in order to reduce the interference of cover body and post cover assembly department, on the other hand, the relative cover body of base member is rotatory back, the gasbag bumps the vertical face and takes place deformation, the rotatory impact energy of deformation in-process overcoat is consumed by the dispersion, simultaneously, the gasbag is carried the relative base member of base member ground rotation, promptly with the rotatory energy dispersion of base member to the deformation of gasbag and the rotary motion of gasbag, under the circumstances that does not influence cable structural strength, help recovering platform steady state, reduce the platform rotation and arouse survivor discomfort and dropping, incompletely wrap up the outside at the gasbag, realize rotatory and slip direction, form protection to the spout, the direct friction injury of gasbag that leads to the reduction of sliding cost.

Preferably, the inner side of the column sleeve is rotationally connected with a first ring body, the inner side of the first ring body is rotationally connected with a second ring body, the inner side of the second ring body is rotationally connected with a third ring body, a shaft lever is fixed in the third ring body, one end of a cable is fixedly connected with the shaft lever, the other end of the cable is connected with a winding device, and the winding device is used for winding and unwinding the cable. The first ring body, the second ring body and the third ring body are respectively and axially perpendicular to each other, when the helicopter turns or flies unstably in the air, one end of a cable is pulled by the helicopter to shake, and at the moment, the cable can contact the first ring body, the second ring body and the third ring body, so that the first ring body, the second ring body and the third ring body relatively rotate, on one hand, the cable can be quickly assisted to straighten, the cable shake amplitude, and accordingly the platform shake amplitude is reduced, on the other hand, the first ring body, the second ring body and the third ring body which rotate can form protection at the tail end position of the cable, and the risk of friction fracture along the inner edge of the cable and a column jacket is reduced.

Preferably, the platform comprises a bottom plate and a top cover, the top cover is erected above the bottom plate, the top cover comprises an upper plate, a lower plate and a connecting rod, the upper plate is arranged above the lower plate and has a height interval, the connecting rod is at least three and is uniformly distributed between the upper plate and the lower plate, one end of the connecting rod is hinged with the lower plate, and the other end of the connecting rod is movably connected with the upper plate.

Preferably, one end of the connecting rod is hinged to the outer edge of the upper end face of the lower plate, the other end of the connecting rod is hinged to the sliding block, the upper plate is provided with a sliding groove allowing the sliding block to horizontally slide, and the sliding block and the sliding groove are connected with a second spring. When the helicopter flies with the platform lifted, the platform is subjected to wind resistance and air current to shake, the lower plate drives the connecting rod to swing, simultaneously the sliding block at the tail end of the connecting rod slides in the sliding groove and extrudes the second spring, thereby realizing shaking buffering of the bottom plate relative to the upper plate, improving the stability of the bottom plate, avoiding the shaking of the platform to influence the flight stability of the helicopter, simultaneously reducing the possibility of falling or falling of survivors, when the survivors who are not on the ground rescue, the survivors enter the platform from one end of the suspended bottom plate, at the moment, the center of the bottom plate shifts to the trample position, the connecting rod swings at the hinging position while extruding the spring in the sliding groove through the sliding block, so that the bottom plate and the lower plate downwards displace relative to the top plate, namely the bottom plate is converted into the downward displacement of the lower plate relative to the upper plate by the pressure of one side, the inclination and shaking amplitude of the bottom plate are reduced, the safety of the platform is improved, the flying process of the helicopter carrying the platform is avoided, the flying trace and the air current influence is reduced, the survivors generate flying height change, the survivors buffer the lower plate is extruded by the sliding block to buffer the bottom plate when the survivors are in the flying process of the helicopter, thereby the impact force is reduced, the impact force is transmitted to the sliding part is reduced, and the impact force is transferred to the sliding part is stable, and the impact force is generated on the ground when the sliding part is contacted with the sliding plate.

Preferably, the bottom plate is provided with a supporting rod in a surrounding manner, the lower plate is connected with the bottom plate through the supporting rod, an elastic rope is arranged above the bottom plate, the elastic rope is connected to the inner side of the supporting rod in a surrounding manner, and annular pull belts are arranged on the elastic rope at intervals. The branch forms the connection of floor and hypoplastron, and the inside elastic rope that sets up of it is convenient for survivors snatchs and gets into the bottom plate middle part, also forms the side protection to the survivors that gets into, reduces and falls the risk, and the branch makes the windage less to the influence of platform with the setting up of elastic rope, and the pull belt helps the survivors in the bottom plate to draw and gets in order to stabilize the health, reduces the platform and rocks and arouses survivor slide and fall the risk.

Preferably, the bottom of the bottom plate is provided with an air cushion, and the bottom plate is a flexible plate. The air cushion can form the buffering to the impact in the bottom plate bottoming moment, and the survivor tramples on the bottom plate, and the bottom plate takes place the deformation sunken, helps forming the position stability to the survivor, reduces its risk of rolling, tumbleing, has improved the security.

Compared with the prior art, the invention has the following beneficial effects: the mooring rope is connected with the sleeve body through threads, so that the disassembly is convenient; the first spring realizes the consumption of longitudinal interference, reduces the possibility of sliding wires and abrasion at the threaded connection part, and prolongs the service life of parts; the guide piece stretches and guides the first spring to protect the elastic deformation capacity; the rotation of the matrix realizes energy consumption through the impact and rotation of the air bag in the chute, promotes the stability of the platform, and improves the flight transfer safety; the air bag consumes vibration interference transmission through deformation, so that interference at the threaded connection position is reduced; the sliding sleeve wraps the middle part of the air bag, so that the abrasion and rupture of the air bag are avoided while the rotary guiding is realized, and the maintenance cost is reduced; the sliding groove limits the rotation of the air bag, so that the first spring is prevented from excessively twisting and deforming to lose vibration isolation capability; different ring bodies straighten the cable through rotation, so that the shaking amplitude is reduced, and the flight stability of the platform is improved; the different ring bodies avoid contact abrasion between the swing of the cable and the column sleeve, so that the connection safety is improved; the upper plate and the lower plate can relatively move through the swinging and sliding of the connecting rod, so that external impact and landing impact are consumed, the service life of parts is prolonged, and the transfer safety of survivors is improved; the setting of elastic rope and stretching strap is convenient for survivors get into the platform fast, improves the rescue rate. Therefore, the invention relates to a stable lifting device with stability for rescue of a helicopter.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.

FIG. 1 is a schematic front view of a stabilized lift device for rescue of a helicopter;

FIG. 2 is a schematic cross-sectional view of a fitting;

FIG. 3 is a schematic view of a guide;

FIG. 4 is a schematic illustration of the locations of the extrados and intrados;

FIG. 5 is a schematic view of the first ring, the second ring, and the third ring;

FIG. 6 is a schematic cross-sectional view of a top cover;

Fig. 7 is a schematic structural view of the connecting rod.

Reference numerals: a cable 1; a column jacket 10; a first ring body 11; a second ring body 12; a third ring body 13; a shaft lever 14; fitting 2; a base 20; a sleeve 21; a base 22; a first spring 23; ferrule 24; an outer arc surface 240; a clamping groove 25; an intrados surface 250; end face 251; a balloon 26; a platform; a bottom plate 3; a strut 30; an elastic cord 31; a pull strap 32; an air cushion 33; a top cover 4; an upper plate 40; a lower plate 41; a link 42; a slider 43; a chute 44; a second spring 45; an adjustment plate 46; and a through hole 47.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The concept of the present application will be described with reference to the accompanying drawings. It should be noted that the following descriptions of the concepts are only for making the content of the present application easier to understand, and do not represent a limitation on the protection scope of the present application; meanwhile, the embodiments of the present application and features in the embodiments may be combined with each other without collision. The application will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1-2, a stable lifting device for helicopter rescue comprises a cable 1, wherein one end of the cable 1 is connected with an assembly part 2, the assembly part 2 is provided with a hook and is connected with a platform, the assembly part 2 comprises a base body 20, a sleeve body 21 is slidably connected in the base body 20, the tail end of the cable 1 is connected with a column sleeve 10, the column sleeve 10 is in threaded connection with the sleeve body 21, and the hook is arranged at the bottom of the base body 20.

It should be noted that the base 20 is connected to the hook at the bottom by a screw fitting, and the hook includes, but is not limited to, a mountain climbing buckle.

The base 20 comprises a shell with an opening at the upper end and a cover body, the cover body is assembled and connected above the shell, a round hole is formed in the middle of the cover body, and the sleeve body 21 penetrates through the round hole and is in sliding connection with the cover body.

The sleeve body 21 and the column sleeve 10 are matched with each other through threads, so that the assembly and disassembly are convenient, and the connection speed of the platform and the cable 1 is improved in case of accident.

Referring to fig. 3-4, a base 22 is provided at the bottom end of the sleeve 21, a first spring 23 is connected between the base 22 and the base 20, and guiding elements are uniformly arranged on the side of the base 22.

It should be noted that, the base 22 includes a plate body and a column body, the plate body is fixed at the bottom end of the sleeve body 21, the column body is fixed at the bottom end of the plate body, the upper end surface of the plate body is larger than the bottom end surface of the sleeve body 21, the first spring 23 is connected between the upper end surface of the plate body and the inner top end of the cover body, and the first spring 23 is sleeved outside the sleeve body 21.

During assembly, the sleeve body 21 firstly passes through the round hole of the shell from bottom to top, the cover body and the base 22 are connected through the spring, and then the cover body and the shell are assembled to form connection.

The sleeve body 21 is fixed with the base 22, the sleeve body 21 forms the elastic connection with the base 20 through the first spring 23, when the platform shakes because of the load changes, the sleeve body 21 upwards slides relative to the base 20 through compressing the first spring 23, thereby buffering and shaking to reduce the interference of the threaded connection of the column sleeve 10 and the sleeve body 21, preventing the thread from sliding to lead to the failure of the cooperation, simultaneously, the compressed first spring 23 can reduce the possibility of the broken connection of the cable 1 caused by the sudden increase of the pulling force, the hook is in the compressed state all the time under the state of being connected with the platform, namely the condition that the first spring 23 is not excessively stretched is avoided, and the elastic deformation recovery capability is avoided from being lost due to the tension of the first spring 23.

The guide piece comprises a clamping sleeve 24, the clamping sleeve 24 is fixed on the base 22, clamping grooves 25 are uniformly distributed on the inner wall of the base 20, the clamping sleeve 24 can be lifted and rotated relative to the clamping grooves 25, and an air bag 26 is sleeved inside the clamping sleeve 24.

It should be noted that, the clamping groove 25 extends upward to the upper end of the housing to facilitate the installation of the clamping sleeve 24, and the sliding of the clamping sleeve 24 in the clamping groove 25 is limited by the first spring 23.

The draw-in groove 25 forms the direction of sliding motion to cutting ferrule 24, reduce cutting ferrule 24 slope striking base member 20 inside possibility, reduce and interfere in order to improve assembly stability, when there is the unbalance loading on the platform or receive lateral external force action, the platform carries base member 20 through the couple and takes place to rotate, through the rotation of the relative cutting ferrule 24 of draw-in groove 25, can reduce the cover body 21 and carry post cover 10 and cable 1 rotatory range, on the one hand, avoid cable 1 to continue to twist and lead to rope body structural strength to weaken, influence the security that the platform hung, on the other hand, the cover body 21 can rotate relative to the base through cutting ferrule 24 and draw-in groove 25, rotary motion is to the rocking interference consumption of the cover body 21 transmission to base member 20, thereby stabilize the platform straightness that hangs down when helicopter flight gesture changes, the security in the improvement flight process.

The clamping sleeve 24 is provided with an outer cambered surface 240, the clamping groove 25 is provided with an inner cambered surface 250, the outer cambered surface 240 is matched with the inner cambered surface 250, the clamping groove 25 is also provided with a vertical surface 251, the tail end of the air bag 26 is positioned outside the clamping sleeve 24, and the tail end of the air bag 26 is spaced from the adjacent vertical surface 251.

The arrangement of the outer cambered surface 240 and the inner cambered surface 250 is used for lifting and guiding the clamping sleeve 24 relative to the clamping groove 25, simultaneously, the centering degree of the sleeve body 21 relative to the rotation of the base body 20 is guaranteed, when the platform shakes and rotates, the base body 20 rotates relative to the sleeve body 21, at this time, the outer cambered surface 240 of the base body 20 forms rotary guiding to the inner cambered surface 250 of the clamping sleeve 24, meanwhile, the air bags 26 extending out of two ends of the clamping sleeve 24 can synchronously rotate and impact the vertical surface 251 of the clamping groove 25, on one hand, the interference absorption of vibration interference is carried out by the elastic deformation of the air bags 26 after being pressed, so that the interference of the sleeve body 21 and the assembling part of the column sleeve 10 is reduced, on the other hand, the rotary impact energy of the outer sleeve is dispersed and consumed in the deformation process, meanwhile, the air bags 26 are impacted and then carry the base 22 to rotate relative to the base body 20 in a small amplitude, namely, the rotary energy of the base body 20 is dispersed to the deformation of the air bags 26 and the rotary motion of the air bags 26, the whole rotary speed of the base body 20 is reduced under the condition that the structural strength of the mooring rope 1 is not influenced, the stable state of the platform is facilitated, the falling caused by the rotation of the platform is reduced, the risk of the falling is reduced, the situation that the sliding is not completely caused, the air bags 26 is not completely falls down, the air bags 26 are prevented from being completely, the rotary guiding the air bags 26 is completely, the air bags 26 are prevented from being contacted with the air bags 26, and the air bags are prevented from being contacted with the structural strength, and the sliding the air bags are completely, and the sliding the air bags are 44 are protected, and the cost is directly is protected.

Referring to fig. 5, a first ring body 11 is rotatably connected to the inner side of a column sleeve 10, a second ring body 12 is rotatably connected to the inner side of the first ring body 11, a third ring body 13 is rotatably connected to the inner side of the second ring body 12, a shaft lever 14 is fixed in the third ring body 13, one end of a cable 1 is fixedly connected with the shaft lever 14, the other end of the cable 1 is connected with a winding device, and the winding device is used for winding and unwinding the cable 1.

It should be noted that, the coiling mechanism sets up in the helicopter, and the coiling mechanism realizes the platform lift through winding and release hawser 1.

The axial directions of the rotation of the first ring body 11, the second ring body 12 and the third ring body 13 are perpendicular to each other, when the helicopter turns or flies unstably in the air, one end of the cable 1 is pulled by the helicopter to shake, at the moment, the cable 1 can contact the first ring body 11, the second ring body 12 and the third ring body 13, so that the first ring body 11, the second ring body 12 and the third ring body 13 can rotate relatively, on one hand, the cable 1 can be quickly assisted to be straightened, the shaking amplitude of the cable 1 is reduced, and therefore the shaking amplitude of a platform is reduced, on the other hand, the rotating first ring body 11, the rotating second ring body 12 and the rotating third ring body 13 can form protection at the tail end position of the cable 1, and the risk of friction breakage of the cable 1 and the column jacket 10 is reduced.

Referring to fig. 6, the platform includes a bottom plate 3 and a top cover 4, the top cover 4 is erected above the bottom plate 3, the top cover 4 includes an upper plate 40, a lower plate 41 and a connecting rod 42, the upper plate 40 is arranged above the lower plate 41 and has a height interval, the connecting rod 42 is at least three and is uniformly arranged between the upper plate 40 and the lower plate 41, one end of the connecting rod 42 is hinged with the lower plate 41, and the other end of the connecting rod 42 is movably connected with the upper plate 40.

One end of the connecting rod 42 is hinged to the outer edge of the upper end face of the lower plate 41, the other end of the connecting rod 42 is hinged to the sliding block 43, the upper plate 40 is provided with a sliding groove 44 allowing the sliding block 43 to horizontally slide, and the sliding block 43 and the sliding groove 44 are connected with a second spring 45.

The connecting rod 42 forms swing joint between upper plate 40 and lower plate 41, when the helicopter carries the platform of hoist and mount to fly, the platform receives windage and air current to take place to rock, this moment lower plate 41 drives the connecting rod 42 and swings, slider 43 at the terminal of connecting rod 42 slides and extrudes second spring 45 in spout 44 simultaneously, thereby realize the rocking buffering of bottom plate 3 relative upper plate 40, be favorable to improving bottom plate 3 stability, avoid the platform to rock and influence helicopter flight stability, reduce the survivor and fall or drop the possibility simultaneously, when the survivor who is not subaerial is rescued, the survivor gets into the platform from the bottom plate 3 one end that hangs, the center of bottom plate 3 is to trample the position skew at this moment, when pressing the spring in spout 44 through slider 43, the connecting rod 42 takes place to swing in the articulated department, make bottom plate 3 and lower plate 41 relatively the roof downward displacement, namely, the pressure that bottom plate 3 received the unilateral is shifted downwards to lower plate 41 relatively upper plate 40, reduce bottom plate 3 slope and rocking amplitude, improve the safety of survivor's boarding platform, in the course of helicopter carries the flight path and the possibility of falling down, when the survivor air current carries the rescue, the survivor falls down the platform through the high impact of slider 43, the impact force is produced to the high impact of the impact spring 45 through the high impact buffer plate 45, the impact of the impact buffer plate 45 is produced to the impact on the platform is reduced, the impact on the bottom plate 45, the impact surface is reduced, the impact surface is produced to the impact surface is reduced to the impact surface of the safety of the platform is caused by the impact surface of the impact surface is compared with the impact surface is 45, and is reduced.

The bottom plate 3 is provided with a support rod 30 in a surrounding manner, the lower plate 41 is connected with the bottom plate 3 through the support rod 30, an elastic rope 31 is arranged above the bottom plate 3, the elastic rope 31 is connected to the inner side of the support rod 30 in a surrounding manner, and annular pull belts 32 are arranged on the elastic rope 31 at intervals.

The branch 30 forms the bottom plate 3 and is connected with hypoplastron 41, and the inside elastic rope 31 that sets up is convenient for the survivor snatch and gets into bottom plate 3 middle part, also forms the side protection to the survivor that gets into, reduces the risk of falling, and the branch 30 makes the influence of windage to the platform less with elastic rope 31's setting, and the stretching strap 32 helps the survivor in the bottom plate 3 to pull in order to stabilize the health, reduces the platform and rocks and arouses survivor slide and fall the risk.

The bottom of the bottom plate 3 is provided with an air cushion 33, and the bottom plate 3 is a flexible plate.

The air cushion 33 can cushion the impact in the bottom 3 bottoming moment, survivors trample on the bottom plate, and the bottom plate is deformed and sunken, so that the position stability of the survivors is facilitated, the rolling and falling risks of the survivors are reduced, and the safety is improved.

The top end of the upper plate 40 is provided with a hanging ring, and the hook can be connected with the hanging ring.

Referring to fig. 7, the side of the link 42 is provided with an adjusting plate 46, the adjusting plate 46 is capable of contacting the lower plate 41 and the upper plate 40, the adjusting plate 46 is an elastic plate, and the adjusting plate 46 is provided with a through hole 47.

The helicopter utilizes the coiling mechanism to pack up hawser 1 for the platform is close to the helicopter, when the platform rises and reaches the helicopter below, the change of the attitude of the upper plate 40 is all caused to change in any flight attitude of the helicopter at this time, the lower plate 41 relatively keeps the horizontal attitude when the upper plate 40 follows the deviation inclination of the helicopter at this time through the swing of the connecting rod 42 and the sliding of the sliding block 43, so as to ensure the perpendicularity of the platform, the sliding block 43 slides and compresses the second spring 45, the adjusting plate 46 follows the connecting rod 42 and swings upwards from the horizontal attitude to be in an inclined state, at this time, the adjusting plate 46 can guide transverse airflow upwards, so that the airflow acts on the bottom of the upper plate 40, the upper plate 40 obtains upward acting force, the load pressure of the platform and survivors on the helicopter is reduced, and the flight stability of the helicopter is improved.

When the adjusting plate 46 is kept in an inclined state, the air flow can also form acoustic noise through the through holes 47, so that the surrounding creatures can be driven, and potential safety hazards caused by the approach of flying creatures to the platform can be avoided.

The more survivors carried on the bottom plate 3, the greater the tensile force borne by the lower plate 41, the closer the posture of the connecting rod 42 is to the vertical state, the closer the posture of the regulating plate 46 is to the vertical posture, the upward guiding capability of the regulating plate 46 to the air flow is improved, so that the air flow acting force on the upper plate 40 is enhanced, namely, the regulating plate 46 can adaptively regulate the air flow guiding direction according to the load on the bottom plate 3, and the lifting force of the upper plate 40 is regulated, so that the stability of the helicopter is facilitated to be stabilized under different load states.

The above examples and/or embodiments are merely for illustrating the preferred embodiments and/or implementations of the present technology, and are not intended to limit the embodiments and implementations of the present technology in any way, and any person skilled in the art should be able to make some changes or modifications to the embodiments and/or implementations without departing from the scope of the technical means disclosed in the present disclosure, and it should be considered that the embodiments and implementations are substantially the same as the present technology.

The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present application and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this application, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the application, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present application.

Claims (9)

1. The stable lifting device for helicopter rescue comprises a cable (1), wherein one end of the cable (1) is connected with an assembly part (2), the assembly part (2) is provided with a hook and is connected with a platform,

The method is characterized in that: the assembly part (2) comprises a base body (20), a sleeve body (21) is connected in a sliding manner in the base body (20), a column sleeve (10) is connected to the tail end of the cable (1), the column sleeve (10) is in threaded connection with the sleeve body (21), and the hook is arranged at the bottom of the base body (20).

2. The stabilized elevating device for helicopter rescue according to claim 1, wherein: the bottom of the sleeve body (21) is provided with a base (22), a first spring (23) is connected between the base (22) and the base body (20), and guide elements are uniformly distributed on the sides of the base (22).

3. The stabilized elevating device for helicopter rescue according to claim 2, wherein: the guide piece comprises a clamping sleeve (24), the clamping sleeve (24) is fixed on the base (22), clamping grooves (25) are uniformly formed in the inner wall of the base body (20), the clamping sleeve (24) can lift and rotate relative to the clamping grooves (25), and an air bag (26) is sleeved inside the clamping sleeve (24).

4. A stabilized lifting device for helicopter rescue as claimed in claim 3, wherein: the clamping sleeve (24) is provided with an outer arc surface (240), the clamping groove (25) is provided with an inner arc surface (250), the outer arc surface (240) is matched with the inner arc surface (250), the clamping groove (25) is further provided with a vertical surface (251), the tail end of the air bag (26) is positioned outside the clamping sleeve (24), and the tail end of the air bag (26) is separated from the adjacent vertical surface (251).

5. The stabilized elevating device for helicopter rescue according to claim 1, wherein: the novel cable comprises a column sleeve (10), and is characterized in that a first ring body (11) is connected to the inner side of the column sleeve in a rotating mode, a second ring body (12) is connected to the inner side of the first ring body (11) in a rotating mode, a third ring body (13) is connected to the inner side of the second ring body (12) in a rotating mode, a shaft rod (14) is fixed in the third ring body (13), one end of the cable (1) is fixedly connected with the shaft rod (14), a winding device is connected to the other end of the cable (1), and the winding device is used for winding and unwinding the cable (1).

6. The stabilized elevating device for helicopter rescue according to claim 1, wherein: the platform comprises a bottom plate (3) and a top cover (4), the top cover (4) is arranged above the bottom plate (3), the top cover (4) comprises an upper plate (40), a lower plate (41) and a connecting rod (42), the upper plate (40) is arranged above the lower plate (41) and has a height interval, the connecting rod (42) is at least three and is uniformly distributed between the upper plate (40) and the lower plate (41), one end of the connecting rod (42) is hinged with the lower plate (41), and the other end of the connecting rod (42) is movably connected with the upper plate (40).

7. The stabilized elevating device for helicopter rescue as claimed in claim 6, wherein: one end of the connecting rod (42) is hinged to the outer edge of the upper end face of the lower plate (41), the other end of the connecting rod (42) is hinged to the sliding block (43), the upper plate (40) is provided with a sliding groove (44) allowing the sliding block (43) to horizontally slide, and the sliding block (43) and the sliding groove (44) are connected with a second spring (45).

8. The stabilized elevating device for helicopter rescue as claimed in claim 6, wherein: the novel elastic support is characterized in that a support rod (30) is arranged on the bottom plate (3) in a surrounding mode, the lower plate (41) is connected with the bottom plate (3) through the support rod (30), an elastic rope (31) is arranged above the bottom plate (3), the elastic rope (31) is connected to the inner side of the support rod (30) in a surrounding mode, and annular pull belts (32) are arranged on the elastic rope (31) at intervals.

9. The stabilized elevating device for helicopter rescue as claimed in claim 6, wherein: the bottom of the bottom plate (3) is provided with an air cushion (33), and the bottom plate (3) is a flexible plate.