Auxiliary equipment for wounded to get on and get off machine

Abstract

The invention discloses auxiliary equipment for the wounded to get on and get off a machine. Comprising a bottom frame, a scissor-fork supporting rod system which is arranged on the bottom frame and can do lifting motion, a lifting holder arranged on the top of the scissor-fork supporting rod system, a stretcher arranged on the lifting holder and a power system which is connected with the scissor-fork supporting rod system and used for enabling the scissor-fork supporting rod system to ascend and descend. A horizontal bearing face is arranged on the top face of the lifting holder, and the stretcher is arranged on the bearing face in a sliding mode. The bottom frame is of a rectangular frame structure, the shear fork supporting rod system comprises two sets of shear fork units, and each set of shear fork unit is formed by hinging at least two X-shaped shear fork supports. The device is simple in structure and convenient to use, and mechanical lifting and transferring of the sick and wounded are achieved through cooperation of the bottom frame, the shear fork supporting rod system, the lifting holder and the power system.

Description

Technical Field

[0001] The invention belongs to the technical field of boarding auxiliary equipment, and more specifically, particularly relates to an auxiliary equipment for injured and sick persons to board and disembark from an aircraft. Background Art

[0002] The transfer of injured and sick persons should normally be carried out using timely and effective means of transportation. If ground traffic is unobstructed, ambulances are generally used for transfer. If ground traffic conditions are complicated or the transfer requires long distances, airplanes will be used for transfer.

[0003] In most cases, the injured and sick are lying on a stretcher during the transfer process. If an airplane is used to transfer the injured and sick, the injured and sick lie on a stretcher, and it requires the cooperation of multiple people to put the stretcher into the cabin, that is, at least two people lift the stretcher outside the cabin, and at least two people catch the stretcher inside the cabin. This method requires close cooperation among multiple people, which consumes human resources and there is also a risk of the injured and sick falling off the stretcher. Summary of the invention

[0004] The purpose of the present invention is to provide an auxiliary device for the sick and injured to board and leave a stretcher, so as to solve the problems existing in the existing method, reduce human resources and prevent the sick and injured from falling from the stretcher.

[0005] To achieve the above-mentioned object, the present invention provides the following scheme: an auxiliary device for the sick and injured to board and disembark from an aircraft, comprising: a base frame, a scissor-type support rod system arranged on the base frame and capable of lifting and lowering, a lifting platform arranged on the top of the scissor-type support rod system, a stretcher arranged on the lifting platform, and a power system connected to the scissor-type support rod system and used to lift and lower the scissor-type support rod system; a horizontal bearing surface is arranged on the top surface of the lifting platform, and the stretcher is slidably arranged on the bearing surface; The base frame is a rectangular frame structure, and a box is arranged at the bottom of the base frame; the inner side surfaces of both sides in the length direction of the base frame are symmetrically provided with a slide groove structure, and a slider is arranged in the slide groove structure, and a metal hinge seat for connecting with the scissor support rod system is arranged on the slider; The scissor support system includes two sets of scissor units, each set of scissor units is composed of at least two X-shaped scissor brackets hinged together; the two sets of scissor units are fixed by a coupling structure; The power system comprises a lifting cylinder, one end of which is hinged to the lower structure of the scissor-type support rod system, and the other end of which is hinged to the upper structure of the scissor-type support rod system.

[0006] Furthermore, a slide frame is fixedly arranged on the bearing surface, and the slide frame includes two parallel slide frame units, and a U-shaped slide groove is opened on the top of the slide frame unit; the stretcher is composed of two stretcher rods and a stretcher cloth connected between the two stretcher rods; a stretcher pulley is provided at the bottom of the stretcher rod and rollingly cooperates with the U-shaped slide groove; the stretcher is set on the bearing surface through the slide frame.

[0007] Furthermore, the bearing surface is a rectangular plane structure, and its length is not less than the length of the stretcher; guardrails are arranged on both sides along the length direction of the bearing surface.

[0008] Furthermore, the guardrail includes a plurality of hinged rods and hinged connecting rods, the hinged rods are hinged on the bearing surface and can be flipped along the bearing surface; the plurality of hinged rods are connected by hinged connecting rods.

[0009] Furthermore, the slide frame unit is provided with a limiting structure for limiting the position of the stretcher pulley.

[0010] Furthermore, the limiting structure is a limiting spring pin.

[0011] Furthermore, the power system also includes a pump station box and a battery box arranged in the chassis; the pump station box is connected to the lifting cylinder, and the battery box is connected to the pump station box.

[0012] Furthermore, a manual pump is provided on the hydraulic pipeline connecting the pump station box and the lifting cylinder.

[0013] Furthermore, a supporting leg is hingedly provided at each of the four corners of the base frame, a handle is provided on the base frame, and a plurality of universal wheels are provided at the bottom of the base frame.

[0014] The present invention can realize the mechanized lifting and transfer of the sick and wounded through the cooperation of the base frame, the scissor support system, the lifting platform and the power system. During the whole process of boarding and disembarking, the operator performs the transfer operation on the stretcher at the horizontal height where the operator is located, and the safety is greatly improved. The number of personnel for the transfer operation can also be reduced from at least four to two people to complete the operation. The present invention has a simple and reasonable structural design, is convenient and safe to use, and can realize the transfer operation of the sick and wounded safely, stably and reliably with minimal participation of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a schematic diagram of the device of the present invention in a folded state; Figure 4 This is a schematic diagram of the U-shaped slide structure set on the top of the slide rack unit. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are now described with reference to the accompanying drawings. It will be understood by those skilled in the art that the following embodiments are only used to illustrate the present invention and should not be considered as limiting the scope of the present invention. If no specific technology, connection relationship or condition is indicated in the embodiments, the technology, connection relationship, condition described in the literature in this field or the product specification is used. If the manufacturer of the materials, instruments or equipment used is not indicated, they are all conventional products that can be purchased.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to specific circumstances.

[0018] Combination Figure 1-Figure 4 As shown, the auxiliary equipment for the sick and injured to board and leave the aircraft provided by the present invention is a vertical lifting and transporting equipment, comprising: a base frame 1, a scissor support rod system 2 arranged on the base frame 1 and capable of lifting and lowering, a lifting platform 3 arranged on the top of the scissor support rod system 2, a stretcher 4 arranged on the lifting platform 3, and a power system connected to the scissor support rod system 2 and used to lift and lower the scissor support rod system 2; the top surface of the lifting platform 3 is provided with a horizontal bearing surface 31, and the stretcher 4 is slidably arranged on the bearing surface 31; The chassis 1 is the base of the present invention, and is used to install other components of the present invention. In order to ensure the structural strength of the chassis 1, the chassis 1 is designed as a rectangular metal frame structure, which can be welded from square steel, angle iron or I-beam. A metal box 11 is set at the bottom of the chassis 1 to install batteries, etc., and the metal box structure can also be structurally strengthened. The inner side surfaces of the two side edges in the length direction of the chassis 1 (the two long sides of the rectangular metal frame) are symmetrically provided with a slide groove structure, and a slider is provided in the slide groove structure. The slider is provided with a metal hinge seat for connecting with the scissor support rod system 2. The slider and the slide groove structure are used to realize the sliding of the metal hinge seat; a support leg 8 is hingedly provided at each of the four corners of the base frame 1, and a handle 9 for pushing it to move is provided on the base frame 1, which is convenient for operators to push and pull the present invention; a plurality of universal wheels 10 are provided at the bottom of the base frame 1 to facilitate the movement of the present invention, and the universal wheels 10 all have a braking function to prevent the vehicle from sliding down the slope when parking on a ramp; the support legs 8 are opened before the lifting action to increase stability and prevent the table from tipping over after extension and contraction. The length × width after unfolding is ≤3800×2500mm; The scissor support rod system 2 includes two groups of scissor units, which have the same structure and are mirror-imaged. Each group of scissor units is composed of at least two X-shaped scissor brackets 21 that are hinged. The two groups of scissor units are fixed by a coupling structure 22. The X-shaped scissor bracket 21 is composed of two square steel pipes, and the middle parts of the two square steel pipes with the same length are hinged to form an X-shaped scissor bracket. The two active points at the bottom of each group of scissor units (the ends of the scissor bracket) are hinged to the metal hinge seat. The power system includes a lifting cylinder 7, one end of which is hinged to the lower structure of the scissor-type support rod system 2, that is, a first articulated arm is arranged on a connecting shaft structure between the end points of the support rods on the same side of the two groups of scissor-type units near the lower end of the scissor-type support rod system 2, and the bottom end of the lifting cylinder 7 is hinged to the first articulated arm, and the connecting shaft structure is parallel to the wide side of the rectangular metal frame of the base frame 1; the other end of the lifting cylinder 7 is hinged to the upper structure of the scissor-type support rod system 2, that is, a second articulated arm is arranged on a connecting shaft structure between the end points of the support rods on the same side of the two groups of scissor-type units near the middle and upper part of the scissor-type support rod system 2, and the top end of the lifting cylinder 7 is hinged to the second articulated arm.

[0019] The lifting platform 3 is a component arranged on the top of the scissor support rod system 2 for placing the stretcher 4, including a rectangular metal frame, the size and structure of which are basically consistent with those of the rectangular metal frame constituting the base frame 1; a slide groove structure is arranged on the inner side of the two sides (two long sides) of the rectangular metal frame of the lifting platform 3 in the length direction, a slider is arranged in the slide groove structure, a metal hinge seat is arranged on the slider, the metal hinge seat is used to realize the hinge connection with the top end of the scissor support rod system 2, and the slider and the slide groove structure are used to realize the sliding installation of the metal hinge seat. The base frame 1 and the lifting platform 3 are installed together through the scissor support rod system 2; when the scissor support rod system 2 performs telescopic movement, the base frame 1 is fixed, and the lifting platform 3 can maintain a horizontal state for lifting and lowering.

[0020] Specifically, a slide frame 5 is fixedly arranged on the bearing surface 31, and the slide frame 5 includes two parallel slide frame units 51, and a U-shaped slide groove 52 is opened on the top of the slide frame unit 51; the slide frame unit 51 is a U-shaped steel, which can be fixed to the bearing surface by bolts or by welding; the interval between the two slide frame units is set according to the width of the stretcher 4 after opening; the slide frame unit 51 is provided with a limiting structure for limiting the stretcher pulley 43, which The limiting structure is a limiting spring pin, which can be inserted into the stretcher pulley to limit the stretcher pulley; the stretcher 4 is composed of two stretcher rods 41 and a stretcher soft cloth 42 connected between the two stretcher rods 41, and the stretcher rods 41 are metal round tubes; the bottom of the stretcher rods 41 is provided with a stretcher pulley 43 that rolls with the U-shaped slide groove 52, and each stretcher rod is provided with at least one stretcher pulley, which is installed on the stretcher rod through a pulley seat; the stretcher 4 is set on the bearing surface 31 through the slide frame 5.

[0021] A further optimized solution is that the bearing surface 31 is a rectangular plane structure, and its length is not less than the length of the stretcher 4; guardrails 6 are arranged on both side edges along the length direction of the bearing surface 31; the guardrails 6 are folding guardrails, including multiple articulated rods 61 and articulated connecting rods 62, the articulated rods 61 are hinged to the bearing surface and can be flipped along the length direction of the bearing surface, and the flipping angle range of the articulated rods relative to the bearing surface is between 45° and 135°; the multiple articulated rods 61 are connected by articulated connecting rods 62.

[0022] To further optimize the scheme, the power system also includes a pump station box and a battery box arranged in the chassis 1; the pump station box is connected to the lifting cylinder 7 to drive the lifting cylinder 7 to extend or shorten, and the battery box is connected to the pump station box to provide electrical energy; a manual pump is arranged on the hydraulic pipeline connecting the pump station box and the lifting cylinder; when power failure and other faults occur and the table top cannot be raised or lowered, the table top can be raised by pressing the manual pump; when an emergency occurs, the platform can be lowered by opening the emergency lowering valve on the manual pump. The movement of the present invention is manually pushed, and the lifting is powered by a battery. The Tianneng lead-acid maintenance-free power battery is used. The capacity of a single battery is 12V80AH, which consists of 2 batteries. It can work for 2 hours after being fully charged.

[0023] In the present invention, the chassis 1 adopts three-dimensional design and CAE stress analysis, the purpose is to use the lightest body to meet the design load-bearing requirements, the chassis 1 is entirely made of high-strength aluminum alloy rectangular tubes, which reduces the weight while providing mechanical strength, and the weight of the whole machine is about 270kg. In the structural composition of the present invention, all parts have anti-corrosion and anti-rust measures, the body and shell surface are strictly sandblasted and sprayed for anti-rust, and have two layers of primer and three layers of topcoat.

[0024] The lifting system (mainly the scissor support system) adopts hydraulic cylinder lifting mode, and drives the lifting platform 3 to lift and lower through two layers of scissor support. The motor power is 24V-1.5Kw, and the lifting speed is 6m / min. The motor uses ultra-low temperature motor, which can meet the working temperature: -41℃~46℃, storage limit temperature: -55℃, 70℃, relative humidity tolerance: no more than 98% (40℃) and other environmental requirements.

[0025] The support rods that make up the scissor support system are made of rigid aluminum alloy rectangular tubes, and are connected by a middle pin shaft for rotation support, which increases the left and right strength and reduces the shaking, so that the overall lifting and lowering deflection is ≤15mm. The lifting stroke range is 900-3500. There is a limit switch control during the falling process. When approaching the lowest position, the speed is reduced to the set value to prevent a large impact.

[0026] After the present invention is put into use, for boarding an aircraft, the sick and injured person only needs to lie flat on the stretcher, and then be manually transferred to the lifting platform on the ground, and then the lifting platform can be lifted to transfer the sick and injured person to a high place without human intervention, and then the high-place receiving personnel will receive and transfer the stretcher to the inside of the cabin; for leaving the aircraft, the sick and injured person only needs to lie flat on the stretcher, and then the lifting platform is lifted to be flush with the cabin opening, and the stretcher is transferred to the lifting platform by personnel at a high place, and after the stretcher is placed stably, the lifting platform can transfer the sick and injured person to the ground without human intervention, and then the ground receiving personnel will receive and transfer the stretcher; during the whole process, the operators perform the transfer operation on the horizontal height at which the stretcher is located, so the safety is greatly improved, and the number of personnel for the transfer operation can be reduced from at least four to two to complete the operation.

[0027] In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An auxiliary device for the sick and injured to board and leave an aircraft, characterized in that: include: A base frame (1), a scissor support rod system (2) arranged on the base frame (1) and capable of lifting and lowering, a lifting platform (3) arranged on the top of the scissor support rod system (2), a stretcher (4) arranged on the lifting platform (3), and a power system connected to the scissor support rod system (2) and used to lift and lower the scissor support rod system (2); the top surface of the lifting platform (3) is provided with a horizontal bearing surface (31), and the stretcher (4) is slidably arranged on the bearing surface (31); The base frame (1) is a rectangular frame structure, and a box body (11) is arranged at the bottom of the base frame (1); slide groove structures are symmetrically arranged on the inner side surfaces of both sides in the length direction of the base frame (1), and a slide block is arranged in the slide groove structure, and a metal hinge seat for connecting with the scissor support rod system (2) is arranged on the slide block; The scissor support rod system (2) comprises two groups of scissor units, each group of scissor units is composed of at least two X-shaped scissor brackets (21) hingedly connected; the two groups of scissor units are fixed by a connecting shaft structure (22); The power system comprises a lifting cylinder (7), one end of which is hinged to the lower structure of the scissor-type support rod system (2), and the other end of which is hinged to the upper structure of the scissor-type support rod system (2).

2. The auxiliary equipment for the sick and injured to board and leave an aircraft according to claim 1, characterized in that: A slide frame (5) is fixedly arranged on the bearing surface (31), and the slide frame (5) comprises two parallel slide frame units (51), and a U-shaped slide groove (52) is provided on the top of the slide frame unit (51); the stretcher (4) comprises two stretcher rods (41) and a stretcher soft cloth (42) connected between the two stretcher rods (41); a stretcher pulley (43) rollingly matched with the U-shaped slide groove (52) is provided at the bottom of the stretcher rods (41); and the stretcher (4) is arranged on the bearing surface (31) through the slide frame (5).

3. The auxiliary equipment for the sick and injured to board and leave an aircraft according to claim 1 or 2, characterized in that: The bearing surface (31) is a rectangular plane structure, and its length is not less than the length of the stretcher (4); guardrails (6) are provided on both sides along the length direction of the bearing surface (31).

4. The auxiliary equipment for the sick and injured to board and leave an aircraft according to claim 3, characterized in that: The guardrail (6) comprises a plurality of hinged rods (61) and hinged connecting rods (62); the hinged rods (61) are hinged on a bearing surface and can be turned along the bearing surface; and the plurality of hinged rods (61) are connected via the hinged connecting rods (62).

5. The auxiliary equipment for the sick and injured to board and leave an aircraft according to claim 2, characterized in that: The slide frame unit (51) is provided with a limiting structure for limiting the position of the stretcher pulley (43).

6. The auxiliary equipment for the sick and injured to board and leave an aircraft according to claim 5, characterized in that: The limiting structure is a limiting spring pin.

7. The auxiliary equipment for the sick and injured to board and leave an aircraft according to claim 1, characterized in that: The power system also includes a pump station box and a battery box arranged in the base frame (1); the pump station box is connected to the lifting cylinder (7), and the battery box is connected to the pump station box.

8. The auxiliary equipment for the sick and injured to board and leave an aircraft according to claim 7, characterized in that: A manual pump is provided on the hydraulic pipeline connecting the pump station box and the lifting cylinder.

9. The auxiliary device for the sick and injured to board and disembark an aircraft according to any one of claims 1 to 8, characterized in that: A supporting leg (8) is hingedly provided at each of the four corners of the base frame (1), a handle (9) is provided on the base frame (1), and a plurality of universal wheels (10) are provided at the bottom of the base frame (1).

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