Multi-casualty rescue basket

Abstract

The application discloses a multi-injured rescue basket, which comprises a basket frame, a plurality of stretcher placing areas are arranged in the basket frame, and upper and lower stretcher platforms are arranged in each stretcher placing area; the upper stretcher platform is composed of four rotating seats which are located above the lower stretcher platform and are distributed at four corners of the corresponding stretcher placing area; each rotating seat of the upper stretcher platform can be rotated outwards to the corresponding stretcher placing area so that the stretcher placed on the lower stretcher platform can be moved upwards out of the basket frame, or can be rotated inwards to the corresponding stretcher placing area to be positioned together with each rotating seat to form the upper stretcher platform; a plurality of basket stretcher lock buckles are arranged on the upper and lower stretcher platforms; each basket stretcher lock buckle on each stretcher platform can automatically lock the supporting rod of the stretcher to lock and fix the stretcher on the corresponding stretcher platform. The application has the advantages of convenient operation and safe use.

Description

Technical Field

[0001] This invention relates to the field of rescue auxiliary equipment technology, specifically to a multi-injury rescue basket. Background Technology

[0002] Helicopter rescue utilizes helicopters for emergency rescue, enabling faster access to work sites inaccessible by water or land to conduct search and rescue, material transport, and aerial command. It is one of the most effective emergency rescue methods widely used in many countries around the world. Rescue baskets are essential equipment for maritime rescue, used to transport injured personnel at sea. However, existing rescue baskets are mostly used to carry multiple lightly injured personnel, while only 1-2 patients requiring a supine position on a stretcher can be carried at a time. Furthermore, existing rescue baskets lack dedicated stretcher securing devices, which can easily cause serious secondary injuries to supine patients. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-injury rescue basket that is easy to operate and safe to use.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a multi-casualty rescue basket, including a basket frame, wherein the basket frame is provided with several stretcher placement areas, and each stretcher placement area is provided with upper and lower stretcher platforms. The upper stretcher platform is composed of four rotating seats located above the lower stretcher platform and distributed at the four corners of the corresponding stretcher placement area. Each rotating seat of the upper stretcher platform can rotate outward out of the corresponding stretcher placement area so that the stretcher placed on the lower stretcher platform can be moved upward out of the basket frame, or can rotate inward and be positioned in the corresponding stretcher placement area so that it can form the upper stretcher platform together with each rotating seat. Several basket stretcher locks are provided on both the upper and lower stretcher platforms. Each basket stretcher lock on each stretcher platform can automatically lock the support rod of the stretcher to lock and fix the stretcher to the corresponding stretcher platform. The structure of the basket stretcher lock includes: a mounting base. The system includes a positioning rod, a guide member, and two locking members arranged on the left and right. The mounting base is used to fix the system to the corresponding stretcher platform. The positioning rod is vertically fixed to the corresponding stretcher platform and located directly below the mounting base. The guide member is slidably sleeved on the outside of the positioning rod. An elastic mechanism is provided between the positioning rod and the guide member, which ensures that the guide member always tends to move upward along the positioning rod. The lower ends of the two locking members are hinged to the upper ends of the guide member through coaxial hinge shafts. Each locking member has a hook-shaped clamping part. The two locking members are arranged with their clamping parts facing each other so that the clamping parts of the two locking members together form a clamping opening. Each clamping part of the two locking members has an oblong hole. Two guide pins are fixed on the mounting base, symmetrically distributed on the left and right sides of the guide member. Each locking member corresponds to the guide pin on the same side. Each guide pin passes through the oblong hole of the clamping part of the corresponding locking member on the same side.

[0005] Further, the multi-injured rescue basket as claimed in the preceding claim, wherein the structure of the elastic mechanism comprises: a positioning shoulder fixed to the outer wall of the guide member, and a spring sleeved on the outer portion of the positioning rod, the upper end of the spring abutting against the positioning shoulder of the guide member, and the lower end of the spring abutting against the corresponding stretcher platform, and the guide member always having a tendency to move upward along the positioning rod under the elastic force of the spring.

[0006] Further, the multi-injured rescue basket as claimed in the preceding claim, wherein the structure of the basket frame comprises: an upper frame, a front leg frame and a rear leg frame.

[0007] The upper frame comprises: a front frame body in the shape of a "mountain" formed by a front horizontal rod and three front long rods, and a rear frame body in the shape of a "mountain" formed by a rear horizontal rod and three rear long rods; the three front long rods of the front frame body correspond to the three rear long rods of the rear frame body one by one, and a pipe joint is connected between each corresponding front long rod and rear long rod; the front end of each pipe joint is hingedly connected to the rear end of the corresponding front long rod through a left-right oriented front pin shaft, and the rear end of each pipe joint is hingedly connected to the front end of the corresponding rear long rod through a left-right oriented rear pin shaft; the front pin shafts corresponding to the front ends of all the pipe joints are coaxially arranged, and the rear pin shafts corresponding to the rear ends of all the pipe joints are coaxially arranged, so that the front frame body and the rear frame body can be folded and stored or unfolded through the pipe joints, and the front frame body, the rear frame body and the pipe joints can form a leg frame storage space after the front frame body and the rear frame body are folded and stored through the pipe joints; and a locking mechanism is further arranged on the upper frame, which can lock the unfolded upper frame to keep the unfolded posture of the upper frame, or can unlock the upper frame to enable the upper frame to be folded and stored.

[0008] The front leg frame comprises: three front legs, and the lower portions of each two adjacent front legs are fixedly connected together through a bottom front beam; the three front legs of the front leg frame correspond to the three front long rods of the front frame body of the upper frame one by one, and the upper ends of the three front legs of the front leg frame are hingedly connected to the front ends of the corresponding front long rods through a first hinge shaft, so that the front leg frame is hingedly connected to the front frame body of the upper frame through the first hinge shaft, and the front leg frame can be accommodated in the leg frame storage space formed after the upper frame is folded and stored when the front leg frame is folded and stored around the first hinge shaft in the front frame body of the upper frame; and a front locking mechanism is arranged between the front leg frame and the front frame body of the upper frame, which can keep the front leg frame in an upright state relative to the front frame body of the upper frame.

[0009] The rear leg frame comprises three rear legs, the lower parts of every two adjacent rear legs are connected together by a bottom rear beam; the three rear legs of the rear leg frame correspond to the three rear long rods of the rear frame body of the upper frame one by one, the upper ends of the three rear legs of the rear leg frame are hinged to the rear ends of the corresponding rear long rods through a second hinge shaft, so that the rear leg frame is hinged to the upper frame rear frame body through the second hinge shaft, and the rear leg frame can be accommodated in the leg frame storage space formed by folding the upper frame when the rear leg frame is folded around the second hinge shaft and folded into the upper frame rear frame body; a rear locking mechanism is arranged between the rear leg frame and the upper frame rear frame body, which can keep the rear leg frame in an upright state relative to the upper frame rear frame body.

[0010] Further, the multi-injured rescue basket, wherein: the structure of the locking mechanism comprises: a sliding sleeve is sleeved on the outside of each corresponding set of front long rods, pipe joints and rear long rods, positioning holes are arranged on the front and rear end side walls of the sliding sleeve respectively, an installation hole is arranged on the rear end side wall of the front long rod in front of the front pin shaft, an installation hole is arranged on the front end side wall of the rear long rod behind the rear pin shaft, a first spring ball head plunger is installed in each installation hole, the ball head of the first spring ball head plunger always has a tendency to protrude from the side wall of the corresponding long rod; when the upper frame is unfolded, when the sliding sleeve moves along the corresponding set of front long rods, pipe joints and rear long rods to the positioning holes at the front end of the sliding sleeve, the installation holes corresponding to the positioning holes are just corresponding to the installation holes of the rear section of the front long rod and / or the installation holes of the front end of the rear long rod, the ball head of the first spring ball head plunger in each installation hole corresponding to the positioning holes is inserted into the corresponding positioning hole to position and fix the sliding sleeve, so that the sliding sleeve can cover the hinge between the front long rod and the pipe joint and the hinge between the rear long rod and the pipe joint at the same time, so that the upper frame remains unfolded; when the ball head of the first spring ball head plunger is pressed to make the ball head separate from each corresponding sliding sleeve positioning hole, and the sliding sleeve is moved along the corresponding front long rod and rear long rod to not cover the hinge between the front long rod and the pipe joint and the hinge between the rear long rod and the pipe joint, the upper frame can be folded.

[0011] Further, the multi-injured rescue basket, wherein: the structure of the locking mechanism comprises: a sliding sleeve is sleeved on the outside of each corresponding set of front long rods, pipe joints and rear long rods, positioning holes are arranged on the front and rear end side walls of the sliding sleeve respectively, an installation hole is arranged on the rear end side wall of the front long rod in front of the front pin shaft, an installation hole is arranged on the front end side wall of the rear long rod behind the rear pin shaft, a first spring ball head plunger is installed in each installation hole, the ball head of the first spring ball head plunger always has a tendency to protrude from the side wall of the corresponding long rod; when the upper frame is unfolded, when the sliding sleeve moves along the corresponding set of front long rods, pipe joints and rear long rods to the positioning holes at the front end of the sliding sleeve, the installation holes corresponding to the positioning holes are just corresponding to the installation holes of the rear section of the front long rod and / or the installation holes of the front end of the rear long rod, the ball head of the first spring ball head plunger in each installation hole corresponding to the positioning holes is inserted into the corresponding positioning hole to position and fix the sliding sleeve, so that the sliding sleeve can cover the hinge between the front long rod and the pipe joint and the hinge between the rear long rod and the pipe joint at the same time, so that the upper frame remains unfolded; when the ball head of the first spring ball head plunger is pressed to make the ball head separate from each corresponding sliding sleeve positioning hole, and the sliding sleeve is moved along the corresponding front long rod and rear long rod to not cover the hinge between the front long rod and the pipe joint and the hinge between the rear long rod and the pipe joint, the upper frame can be folded.

[0012] Further, the aforementioned multi-casualty rescue basket, wherein the structure of the rear locking mechanism comprises: a rear lug plate downward protruding from the front end of each of the three rear long rods of the rear frame body of the upper frame, each rear lug plate of each rear long rod being hingedly connected to the upper end of the corresponding rear leg of the rear leg holder via a second pin shaft extending left and right, all the second pin shafts being coaxially arranged to form a second hinge shaft for hingedly connecting the rear leg holder to the rear frame body of the upper frame, a third positioning pin hole being further arranged on each rear lug plate of the rear frame body of the upper frame, and a fourth positioning pin hole being further arranged on each rear leg of the rear leg holder, when the rear leg holder is rotated to be upright relative to the rear frame body of the upper frame, the fourth positioning pin hole of each rear leg of the rear leg holder is in alignment with the third positioning pin hole of the corresponding rear lug plate of the rear frame body of the upper frame, and at this time, a second locking pin is inserted into each pair of corresponding third and fourth positioning pin holes, so as to keep the rear leg holder upright relative to the rear frame body of the upper frame.

[0013] Further, the aforementioned multi-casualty rescue basket, wherein the structure of the rear locking mechanism comprises: a rear lug plate downward protruding from the front end of each of the three rear long rods of the rear frame body of the upper frame, each rear lug plate of each rear long rod being hingedly connected to the upper end of the corresponding rear leg of the rear leg holder via a second pin shaft extending left and right, all the second pin shafts being coaxially arranged to form a second hinge shaft for hingedly connecting the rear leg holder to the rear frame body of the upper frame, a third positioning pin hole being further arranged on each rear lug plate of the rear frame body of the upper frame, and a fourth positioning pin hole being further arranged on each rear leg of the rear leg holder, when the rear leg holder is rotated to be upright relative to the rear frame body of the upper frame, the fourth positioning pin hole of each rear leg of the rear leg holder is in alignment with the third positioning pin hole of the corresponding rear lug plate of the rear frame body of the upper frame, and at this time, a second locking pin is inserted into each pair of corresponding third and fourth positioning pin holes, so as to keep the rear leg holder upright relative to the rear frame body of the upper frame.

[0014] Among the four rotating seats constituting the upper stretcher, the two rotating seats located at the rear are respectively installed on the two rear legs of the basket frame rear leg frame, and the specific installation structure of the rotating seat corresponding to the rear leg comprises: a second horizontal support plate is fixed on the rear leg, one end of the rotating seat is movably sleeved on the rear leg and rests on the second horizontal support plate under the action of gravity, so that the rotating seat can freely rotate on the second horizontal support plate around the rear leg, a second installation groove is arranged on the upper surface of the end portion of the second horizontal support plate close to the corresponding stretcher placement area, a third spring ball head plunger is installed in the second installation groove, the ball head of the third spring ball head plunger always has a tendency to protrude out of the second horizontal support plate upward, and a second locking hole is arranged at the bottom of the rotating seat, when the rotating seat rotates inward on the second horizontal support plate around the corresponding rear leg to the position where the second locking hole faces the third spring ball head plunger, the ball head of the third spring ball head plunger will be inserted into the corresponding second locking hole, so that the rotating seat is positioned at a position capable of constituting an upper stretcher platform together with each rotating seat.

[0015] Further, the aforementioned multi-injured rescue basket, wherein: a safety net is arranged around the four sides and the bottom of the basket frame, and a plurality of anti-collision pads are installed outside the safety net.

[0016] Through the implementation of the above technical scheme, the beneficial effects of the present application are: (1) when the stretcher support rod is placed into the basket stretcher lock, the basket stretcher lock will automatically lock the stretcher support rod to lock and fix the stretcher on the stretcher platform, and only by lifting the stretcher, the basket stretcher lock will automatically release the stretcher support rod, thereby facilitating the removal of the stretcher, and there is no need for manual operation of the basket stretcher lock during the entire process of placing and removing the stretcher, thereby saving time and effort and improving the rescue efficiency; (2) each rotating seat constituting the upper stretcher platform can rotate, and when it is necessary to remove the stretcher placed in the lower stretcher platform, each rotating seat constituting the upper stretcher platform can be rotated outward to the corresponding stretcher placement area, so that the stretcher placed on the lower stretcher platform can be moved upward out of the basket frame; (3) the basket frame can be folded and stored when not in use, thereby reducing the storage space when stored, and the basket frame is also very convenient to use when unfolded, and the use stability and safety of the basket frame when unfolded are effectively ensured through the locking and locking mechanisms; (4) the safety net and anti-collision pads are arranged outside the basket frame, thereby improving the overall use safety of the basket, and the safety net and anti-collision pads are detachable and convenient to disassemble; (5) only 4 lying injured or sick persons who need to lie on the stretcher can be carried at a time, thereby improving the rescue and transportation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Fig. 4 is a structural schematic view of the multi-injured rescue basket of the present application in an unfolded use state and with a stretcher placed therein.

[0018] Figure 2 Fig. 4 is a structural schematic view of the multi-injured rescue basket of the present application in an unfolded use state and with a stretcher placed therein.Figure 1 The structural diagram is shown in the middle after the stretcher, safety net, and crash pads have been removed.

[0019] Figure 3 for Figure 2 An enlarged schematic diagram of part A shown in the image.

[0020] Figure 4 for Figure 2 An enlarged schematic diagram of part B shown in the figure.

[0021] Figure 5 This is a schematic diagram of the structure used to lock the front and rear long rods with a sliding sleeve.

[0022] Figure 6 for Figure 5 An enlarged schematic diagram of part C shown in the figure.

[0023] Figure 7 This is a schematic diagram of the structure when the sliding sleeve unlocks the front and rear long rods.

[0024] Figure 8 This is a schematic diagram showing the usage state of the suspended stretcher with the locking buckle in the locked position.

[0025] Figure 9 This is a diagram illustrating the usage state of the suspended stretcher with the locking mechanism in the unlocked position.

[0026] Figure 10 An exploded view of the locking mechanism of the suspended stretcher.

[0027] Figure 11 This is a three-dimensional structural diagram of the hanging basket stretcher locking mechanism.

[0028] Figure 12 This is a schematic diagram of the mounting structure of the rotating base corresponding to the front leg and the front leg.

[0029] Figure 13 This is a schematic diagram of the mounting structure of the rotating seat corresponding to the rear leg and the rear leg.

[0030] Figure 14 This is a schematic diagram of the structure of the multi-injury rescue basket described in this invention when it is in a folded-down state.

[0031] Figure 15 for Figure 14 An enlarged schematic diagram of part D shown in the figure.

[0032] Figure 16 for Figure 14 A schematic diagram of the three-dimensional structure. Detailed Implementation

[0033] like Figure 1 , Figure 2 , Figure 14 ,Figure 15 、 Figure 16 As shown in the figure, the multi-injured rescue basket comprises a basket frame 100, a safety net 10 is arranged on the four sides and the bottom of the basket frame 100, the safety net 10 is detachably covered on the four sides and the bottom of the basket frame 100 through magic tape, a plurality of anti-collision pads 11 are uniformly arranged outside the safety net 10, and each anti-collision pad 11 is detachably bound to the basket frame 100 through a net rope with magic tape; a plurality of lifting lifting rings 12 are installed around the top of the basket frame 100;

[0034] In the embodiment, the structure of the basket frame 100 comprises an upper frame, a front leg frame 700 and a rear leg frame 800.

[0035] The upper frame comprises a front frame body 600 formed in a "mountain" shape by a front horizontal rod 61 and three front long rods 62, and a rear frame body 601 formed in a "mountain" shape by a rear horizontal rod 63 and three rear long rods 64; the three front long rods 62 of the front frame body 600 correspond to the three rear long rods 64 of the rear frame body 601 one by one, and a pipe joint 65 is connected between each corresponding front long rod 62 and rear long rod 64, the front end of each pipe joint 65 is hingedly connected to the rear end of the corresponding front long rod 62 through a left-right front pin shaft 66, the front pin shaft 66 is the hinge between the front long rod 62 and the pipe joint 65, the rear end of each pipe joint 65 is hingedly connected to the front end of the corresponding rear long rod 64 through a left-right rear pin shaft 67, the rear pin shaft 67 is the hinge between the rear long rod 64 and the pipe joint 65, each front pin shaft 66 corresponding to the front end of all pipe joints 65 is coaxially arranged, each rear pin shaft 67 corresponding to the rear end of all pipe joints 65 is coaxially arranged, so that the front frame body 600 and the rear frame body 601 can be folded or unfolded through each pipe joint 65, and after the front frame body 600 and the rear frame body 601 are folded through each pipe joint 65, the front frame body 600, the rear frame body 601 and each pipe joint 65 can form a leg frame storage space, and a locking mechanism is further arranged on the upper frame, which can lock the unfolded upper frame to keep the upper frame in an unfolded posture, or can unlock the upper frame to make the upper frame foldable.

[0036] In the embodiment, as shown in the figure, Figure 5 、 Figure 6 、 Figure 7As shown, the structure of the locking mechanism comprises: a sliding sleeve 68 is sleeved on the outside of each corresponding set of front long rods 62, pipe joints 65 and rear long rods 64, positioning holes 69 are arranged on the front and rear end side walls of the sliding sleeve 68 respectively, a mounting hole is arranged on the rear end side wall of the front long rod 62 in front of the front pin shaft 66, a mounting hole is arranged on the front end side wall of the rear long rod 64 behind the rear pin shaft 67, a first spring ball head plunger 610 is installed in each mounting hole, and the ball head of the first spring ball head plunger 610 always has a tendency to protrude from the side wall of the corresponding long rod; when the upper frame is unfolded, when the sliding sleeve 68 moves along the corresponding set of front long rods 62, pipe joints 65 and rear long rods 64 to the positioning hole at the front end of the sliding sleeve 68, the mounting hole at the rear end of the sliding sleeve 68 is just opposite to the mounting hole at the rear end of the front long rod 62 and / or the positioning hole at the front end of the sliding sleeve 68 is just opposite to the mounting hole at the front end of the rear long rod 64, the ball head of the first spring ball head plunger 610 in the mounting hole corresponding to the positioning hole will be inserted into the corresponding positioning hole to position and fix the sliding sleeve 68, so that the sliding sleeve 68 can cover the hinged part of the front long rod 62 and the pipe joint 65 and the hinged part of the rear long rod 64 and the pipe joint 65 at the same time, so as to keep the upper frame in an unfolded state; when the ball head of the first spring ball head plunger 610 is pressed to make the ball head separate from the corresponding sliding sleeve positioning hole 69, and the sliding sleeve 68 is moved along the corresponding front long rod 62 and rear long rod 64 to not cover the hinged part of the front long rod 62 and the pipe joint 65 and the hinged part of the rear long rod 64 and the pipe joint 65, the upper frame can be folded and stored;

[0037] In actual use, when the current frame body 600, each pipe joint 65 and the rear frame body 601 are unfolded in a straight line, that is, after the upper frame is unfolded, each sliding sleeve pipe 68 is moved to the positioning hole at the front end of the sliding sleeve pipe 68 along the corresponding set of front long rods 62, pipe joints 65 and rear long rods 64, and the positioning hole at the front end of the sliding sleeve pipe 68 is just opposite to the mounting hole of the rear section of the front long rod 62, and the positioning hole at the rear end of the sliding sleeve pipe 68 is just opposite to the mounting hole at the front end of the rear long rod 64, at this time, the ball head of the first spring ball plunger 610 in the mounting hole corresponding to the positioning hole at the front end of the sliding sleeve pipe 68 is inserted into the positioning hole, and the ball head of the first spring ball plunger 610 in the mounting hole corresponding to the positioning hole at the rear end of the sliding sleeve pipe 68 is inserted into the positioning hole, thereby fixing and positioning the sliding sleeve pipe 68, since the sliding sleeve pipe 68 just covers the hinged portions of the front long rod 62 and the pipe joint 65 and the hinged portions of the rear long rod 64 and the pipe joint 65 at this time, the front frame body and the rear frame body cannot be turned around the pipe joint, so that the upper frame remains unfolded; when it is needed to unlock the upper frame so that the upper frame can be folded again, it is only needed to press the ball head of each first spring ball plunger 610 to make the ball head of each first spring ball plunger 610 separate from the corresponding sliding sleeve pipe positioning hole 69, at this time, the sliding sleeve pipe 68 can be moved along the front long rod and the rear long rod, and then the sliding sleeve pipe 68 is moved along the corresponding front long rod 62 and rear long rod 64 to the position not covering the hinged portions of the front long rod 62 and the pipe joint 65 and the hinged portions of the rear long rod 64 and the pipe joint 65, at this time, the front frame body 600 and the rear frame body 601 can be turned around the pipe joint 65 again, so that the front frame body 600 and the rear frame body 601 can be folded again to complete the folding of the upper frame;

[0038] In the embodiment, the front leg frame 700 includes three front legs 71, and the lower portions of each two adjacent front legs 71 are fixedly connected together through a bottom front beam 72. The three front legs 71 of the front leg frame 700 correspond to the three front long rods 62 of the upper frame front frame body one by one, and the upper ends of the three front legs 71 of the front leg frame 700 are hinged to the front ends of the corresponding front long rods 62 through first hinge shafts, so that the front leg frame 700 is hinged to the upper frame front frame body 600 through the first hinge shafts, and the front leg frame 700 can be accommodated in the leg frame storage space formed after the upper frame is folded when the front leg frame 700 is folded on the upper frame front frame body 600. A front locking mechanism is arranged between the front leg frame 700 and the upper frame front frame body 600, which can keep the front leg frame 700 upright relative to the upper frame front frame body 600. In the embodiment, the front locking mechanism includes a front locking rod 73 and a front locking rod fixing mechanism. Figure 3 、 Figure 15As shown, the structure of the front locking mechanism comprises: a front lug plate 611 downwardly protruding from the front end of each of the three front long rods 62 of the upper frame front frame body 600, the front lug plate 611 of each of the front long rods 62 is hingedly connected to the upper end of the corresponding front leg 71 of the front leg support 700 through a left-right oriented first pin shaft 73, all the first pin shafts 73 are coaxially arranged to form a first hinge shaft for hingedly connecting the front leg support 700 to the upper frame front frame body 600, and a first positioning pin hole 6111 is arranged on each of the front lug plates 611 of the upper frame front frame body 600, a second positioning pin hole 75 is arranged on each of the front legs 71 of the front leg support 700, when the front leg support 700 is rotated relative to the upper frame front frame body 600 around the first hinge shaft to be in an upright state, the second positioning pin hole 75 of each of the front legs 71 of the front leg support 700 corresponds to the first positioning pin hole 6111 of the corresponding front lug plate 611 of the upper frame front frame body 600, at this time, a first locking pin 74 is inserted into each pair of corresponding first positioning pin hole 6111 and second positioning pin hole 75, so that the front leg support 700 is kept in an upright state relative to the upper frame front frame body 600; when it is needed to unlock the front leg support 700 so that the front leg support 700 can be folded and stored in the upper frame front frame body 600, it is only needed to pull out the first locking pin 74 from the first positioning pin hole 6111 of the corresponding front lug plate 611, at this time, the front leg support 700 can be folded and stored in the upper frame front frame body 600 by being rotated around the first hinge shaft again.

[0039] The rear leg support 800 comprises: three rear legs 81, the lower parts of each pair of adjacent rear legs 81 are connected together through a bottom rear beam 82; the three rear legs 81 of the rear leg support 800 correspond to the three rear long rods 64 of the upper frame rear frame body 601 one by one, the upper ends of the three rear legs 81 of the rear leg support 800 are hingedly connected to the rear ends of the corresponding rear long rods 64 through a second hinge shaft, so that the rear leg support 800 is hingedly connected to the upper frame rear frame body 601 through the second hinge shaft, and the rear leg support 800 can be accommodated in the leg support storage space formed after the upper frame is folded and stored when the rear leg support 800 is folded and stored around the second hinge shaft in the upper frame rear frame body 601; a rear locking mechanism is arranged between the rear leg support 800 and the upper frame rear frame body 601, which can keep the rear leg support 800 in an upright state relative to the upper frame rear frame body 601; in this embodiment, as shown in the figure, Figure 4 、 Figure 15As shown, the structure of the rear locking mechanism comprises: a rear lug plate 612 protruding downward is mounted at the front end of each of the three rear long rods 64 of the rear frame body 601 of the upper frame, the rear lug plate 612 of each rear long rod 64 is hingedly connected to the upper end of the corresponding rear leg 81 of the rear leg support 800 through a second left-right oriented pin shaft 83, all the second pin shafts 83 are coaxially arranged to form a second hinge shaft for hingedly connecting the rear leg support 800 to the rear frame body 601 of the upper frame, a third positioning pin hole 6121 is further arranged on each rear lug plate 612 of the rear frame body 601 of the upper frame, and a fourth positioning pin hole 85 is further arranged on each rear leg 81 of the rear leg support 800, when the rear leg support 800 is rotated relative to the rear frame body 601 of the upper frame to be in an upright state, the fourth positioning pin hole 85 of each rear leg 81 of the rear leg support 800 corresponds to the third positioning pin hole 6121 of the corresponding rear lug plate 612 of the rear frame body 601 of the upper frame, at this time, a second locking pin 84 is inserted into each pair of corresponding third positioning pin holes 6121 and fourth positioning pin holes 85, so that the rear leg support 800 is kept in an upright state relative to the rear frame body 601 of the upper frame; when it is needed to unlock the rear leg support 800 so that the rear leg support 800 can be folded and stored in the rear frame body 601 of the upper frame, only the second locking pin 84 is pulled out of the first positioning pin hole 6121 of the corresponding rear lug plate 612, at this time, the rear leg support 800 can be folded and stored in the rear frame body 601 of the upper frame by being rotated around the second hinge shaft again.

[0040] The basket frame with the above structure can be folded and stored when not in use, thereby reducing the occupied space during storage, and is very convenient to unfold and use and has high use stability.

[0041] The basket frame 100 is provided with a plurality of stretcher placing areas 1, in this embodiment, two left and right side-by-side stretcher placing areas 1 are arranged in the basket frame; each stretcher placing area 1 comprises one front cross rod 61 and two adjacent front long rods 62 of the front frame body 600 of the upper frame, two pipe joints 65, one rear cross rod 63 and two adjacent rear long rods 64 of the rear frame body 601 of the upper frame, two adjacent front legs 71 of the front leg support 700 and a bottom front beam connected between the adjacent front legs 71, and two adjacent rear legs 81 of the rear leg support 800 and a bottom rear beam 82 connected between the adjacent rear legs 81.

[0042] Each stretcher placement area 1 is provided with two layers of stretcher platforms 5, the upper layer stretcher platform is defined as the upper stretcher platform, and the lower layer stretcher platform is defined as the lower stretcher platform; the lower stretcher platform is composed of the front leg frame bottom front beam 72 and the rear leg frame bottom rear beam 82 corresponding to the stretcher placement area 1, and the upper stretcher platform is composed of four rotating seats 2 above the lower stretcher platform and distributed at the corners of the corresponding stretcher placement area; each rotating seat 2 of the upper stretcher platform can be turned outwards to the corresponding stretcher placement area 1 so that the stretcher 3 placed on the lower stretcher platform can be moved upwards out of the basket frame, or can be turned inwards and positioned in the corresponding stretcher placement area 1 so as to form an upper stretcher platform together with the rotating seats 2;

[0043] In the embodiment, as shown in Figure 12 of the four rotating seats 2 constituting the upper stretcher, the two rotating seats 2 located on the front side are respectively installed on the two front legs 71 of the basket frame front leg frame 700, and the specific installation structure of the rotating seat 2 corresponding to the front leg 71 includes: a first horizontal support plate 91 is fixed on the front leg 71, one end of the rotating seat 2 is movably sleeved on the front leg and is placed on the first horizontal support plate 91 under the action of its own weight, so that the rotating seat 2 can freely rotate on the first horizontal support plate 91 around the front leg 71, a first mounting groove is provided on the upper surface of the end portion of the first horizontal support plate 91 close to the corresponding stretcher placement area 1, a second spring ball head plunger 92 is installed in the first mounting groove, the ball head of the second spring ball head plunger 92 always has a tendency to protrude upwards out of the first horizontal support plate 91, and a first locking hole is provided on the bottom of the rotating seat 2, when the rotating seat 2 is turned inwards on the first horizontal support plate 91 around the corresponding front leg 71 to the position where the first locking hole faces the second spring ball head plunger 92, the ball head of the second spring ball head plunger 92 will be inserted into the corresponding first locking hole, so that the rotating seat 2 is positioned at a position where it can form an upper stretcher platform together with the rotating seats;

[0044] As shown in Figure 13As shown, of the four rotating seats constituting the upper stretcher, the two rotating seats 2 located at the rear side are respectively mounted on the two rear legs 81 of the basket frame rear leg frame 800, and the specific mounting structure of the rotating seat 2 corresponding to the rear leg 81 includes that a second horizontal support plate 93 is fixed on the rear leg 81, one end of the rotating seat 2 is movably sleeved on the rear leg 81 and rests on the second horizontal support plate 93 under the action of its own weight, so that the rotating seat 2 can freely rotate on the second horizontal support plate 93 around the rear leg 81, a second mounting groove is arranged on the upper surface of the end portion of the second horizontal support plate 91 close to the corresponding stretcher placement area 1, a third spring ball head plunger 94 is mounted in the second mounting groove, the ball head of the third spring ball head plunger 94 always has a tendency to protrude upward out of the second horizontal support plate 93, and a second locking hole is arranged at the bottom of the rotating seat 2, when the rotating seat 2 rotates inward around the corresponding rear leg 81 on the second horizontal support plate 93 to the position where the second locking hole faces the third spring ball head plunger 94, the ball head of the third spring ball head plunger 94 will be inserted into the corresponding second locking hole, so that the rotating seat 2 is positioned at a position that can constitute an upper stretcher platform together with each rotating seat;

[0045] A plurality of basket stretcher lock buckles 4 are arranged on the upper stretcher platform and the lower stretcher platform, in this embodiment, four basket stretcher lock buckles 4 are arranged on the upper stretcher platform and the lower stretcher platform, of the four basket stretcher lock buckles 4 on the lower stretcher platform, two basket stretcher lock buckles 4 are respectively mounted on the left and right ends of the front leg frame bottom front beam 72, and the other two basket stretcher lock buckles 4 are respectively mounted on the left and right ends of the rear leg frame bottom rear beam 82; the four basket stretcher lock buckles 4 on the upper stretcher platform are respectively mounted on the four rotating seats 2, that is, each rotating seat 2 is respectively mounted with one basket stretcher lock buckle 4;

[0046] When the stretcher is placed on the stretcher platform, the four basket stretcher lock buckles 4 on the stretcher platform can automatically lock the four support rod end portions of the stretcher 3 respectively, so as to automatically lock and fix the stretcher on the corresponding stretcher platform;

[0047] In this embodiment, as shown in Figure 8 、 Figure 9 、 Figure 10 、 Figure 11As shown, the structure of the basket stretcher lock 4 comprises a mounting seat 41 for fixedly mounting on the corresponding stretcher platform 5, a positioning rod 42 vertically fixed on the corresponding stretcher platform 5 and located directly below the mounting seat 41, a guide 43 provided with a guide hole 431 for the positioning rod to be inserted, the guide hole 431 of the guide 43 is aligned with and sleeved into the positioning rod 42, so that the guide 43 is slidably sleeved on the outside of the positioning rod 42, a resilient mechanism is arranged between the positioning rod 42 and the guide 43, the resilient mechanism makes the guide 43 always have a tendency to move upward along the positioning rod 42, in this embodiment, the structure of the resilient mechanism comprises a positioning shoulder 45 fixed on the outer wall of the guide 43, and a spring 46 sleeved on the outside of the positioning rod 42, the upper end of the spring 46 abuts against the positioning shoulder 45 of the guide 43, and the lower end of the spring 46 abuts against the corresponding stretcher platform 5, under the elastic force of the spring 46, the guide 43 always has a tendency to move upward along the positioning rod 42, the lower ends of two lock pieces 44 are hinged to the upper end of the guide 43 through coaxial hinge shafts 47, each lock piece 44 has a hook-shaped clamping portion 441, the two lock pieces 44 are oppositely arranged with clamping portion arc openings 442 to make the clamping portions 441 of the two lock pieces 44 jointly form a clamping opening 443, a waist-shaped long hole 444 is arranged on each clamping portion 441 of the two lock pieces 44, two guide pins 48 symmetrically distributed on the left and right sides of the guide 43 are fixed on the mounting seat 41, each lock piece 44 corresponds to the guide pin 48 on the same side, and each guide pin 48 is arranged in the waist-shaped long hole 444 of the clamping portion 441 of the corresponding lock piece on the same side; when no external force is applied downward to the guide 43, at this time, the guide 43 moves upward relative to the positioning rod 42 under the upward elastic force of the spring 46, the guide 43 moves upward synchronously with the two lock pieces 44, in the process of the two lock pieces 44 moving upward, the clamping portions 441 of the two lock pieces 44 are automatically opened relative to each other through the guide cooperation of the waist-shaped long holes 444 and the corresponding guide pins 48, at this time, the clamping opening 443 jointly formed by the clamping portions 441 of the two lock pieces 44 can accommodate the support rod of the stretcher 3; after the support rod of the stretcher 3 is placed in the clamping opening, under the gravity of the stretcher 3 and the wounded person lying on the stretcher 3, the support rod of the stretcher 3 presses the guide 43 downward, so that the guide 43 moves downward along the positioning rod 42 against the upward elastic force of the spring 46, the guide 43 moves downward synchronously with the two lock pieces 44, in the process of the two lock pieces 44 moving downward, the clamping portions 441 of the two lock pieces 44 are automatically closed relative to each other through the guide cooperation of the waist-shaped long holes 444 and the corresponding guide pins 48, so that the clamping portions 441 of the two lock pieces 44 are left-right oppositely arranged to clamp the support rod of the stretcher 3, thereby automatically locking and fixing the stretcher 3 on the corresponding stretcher platform.When the stretcher 3 needs to be taken out, the stretcher 3 is simply lifted, so that the support rod of the stretcher 3 no longer presses downward on the guide 43. At this time, the guide 43 is automatically repositioned upward on the positioning rod 42 under the upward elastic force of the spring 46. When the guide 43 moves upward, it again synchronously drives the two locking pieces 44 to move upward. During the upward movement of the two locking pieces 44, the clamping portions 441 of the two locking pieces 44 are again automatically mutually opened under the guiding cooperation of the respective waist-shaped long holes 444 and the corresponding guide pin shafts 48 to loosen the support rod of the stretcher 3. At this time, the support rod of the stretcher 3 can be lifted upward away from the basket stretcher lock 4, so that the stretcher 3 is lifted away from the corresponding stretcher platform. Since when the support rod of the stretcher 3 is placed downward into the basket stretcher lock 4, the basket stretcher lock 4 automatically locks the support rod of the stretcher 3 to lock and fix the stretcher 3 on the corresponding stretcher platform 5, there is no need for any manual operation of the basket stretcher lock during the entire stretcher placing process, which saves time and effort during the entire stretcher placing process, thereby improving the rescue efficiency. Moreover, during the process of taking out the stretcher from the corresponding stretcher platform 5, the basket stretcher lock 4 automatically loosens the support rod of the stretcher when the stretcher 3 is lifted upward, thereby facilitating the taking out of the stretcher 3. There is also no need for any manual operation of the basket stretcher lock during the entire stretcher taking-out process, which saves time and effort during the entire stretcher taking-out process, thereby improving the rescue efficiency.

[0048] Moreover, since the locking of the support rod of the stretcher by the basket stretcher lock 4 is due to the weight of the stretcher 3 acting on the guide 43, the downward force of the stretcher 3 on the guide 43 causes the guide to move downward along the positioning rod 42 against the upward elastic force of the spring 46, which synchronously drives the two locking pieces 44 to move downward, which causes the clamping portions 441 of the two locking pieces 44 to automatically mutually close under the guiding cooperation of the respective waist-shaped long holes 444 and the corresponding guide pin shafts 48, so that the clamping portions 441 of the two locking pieces 44 are in left-right relative state to clamp the support rod of the stretcher, thereby automatically locking and fixing the stretcher 3 on the corresponding stretcher platform 5. In this way, after the stretcher 3 is fixed on the stretcher platform 5 by the basket stretcher lock 4, the injured person is placed on the stretcher 3. Since the weight of the injured person also acts downward on the guide 43 of the basket stretcher lock 4 at this time, the basket stretcher lock 4 only clamps the support rod of the stretcher more tightly, thereby further stably fixing the stretcher 3 on the stretcher platform 5 to prevent the stretcher from loosening, which has high stability and safety in use.

[0049] In use, the multi-injured person rescue basket is first unfolded to the use state. The specific operation process is as follows:

[0050] First, the front frame body 600, each pipe joint 65 and the rear frame body 601 of the upper frame are unfolded in a straight line, and then each sliding sleeve 68 is moved along a corresponding set of front long rods 62, pipe joints 65 and rear long rods 64 to the positioning hole at the front end of the sliding sleeve 68, which corresponds to the mounting hole of the rear section of the front long rod 62, and the positioning hole at the rear end of the sliding sleeve 68 also corresponds to the mounting hole at the front end of the rear long rod 64. At this time, the ball head of the first spring ball head plunger 610 in the mounting hole corresponding to the positioning hole at the front end of the sliding sleeve 68 is inserted into the positioning hole, and the ball head of the first spring ball head plunger 610 in the mounting hole corresponding to the positioning hole at the rear end of the sliding sleeve 68 is inserted into the positioning hole, thereby fixing and positioning the sliding sleeve 68. Since the sliding sleeve 68 covers the hinge between the corresponding front long rod 62 and pipe joint 65 and the hinge between the rear long rod 64 and pipe joint 65 at this time, the front frame body and the rear frame body cannot be turned around the pipe joint, so that the upper frame remains flat;

[0051] Then, the front leg frame 700 is rotated around the first hinge shaft relative to the upper frame front frame body 600 to an upright state. At this time, the second positioning pin hole 75 of each front leg 71 of the front leg frame corresponds to the first positioning pin hole 6111 of each corresponding front ear plate 611 in the upper frame front frame body 600. Then, a first locking pin 74 is inserted into each pair of corresponding first positioning pin hole 6111 and second positioning pin hole 75, so that the front leg frame 700 remains upright relative to the upper frame front frame body 600.

[0052] Then, the rear leg frame 800 is rotated around the second hinge shaft relative to the upper frame rear frame body 601 to an upright state. At this time, the fourth positioning pin hole 85 of each rear leg 81 of the rear leg frame corresponds to the third positioning pin hole 6121 of each corresponding rear ear plate 612 in the upper frame rear frame body 601. Then, a second locking pin 84 is inserted into each pair of corresponding third positioning pin hole 6121 and fourth positioning pin hole 85, so that the rear leg frame 800 remains upright relative to the upper frame rear frame body 601.

[0053] Through the above operation, the unfolding of the basket frame is completed.

[0054] Then, the safety net 10 is wrapped around the four sides and the bottom of the basket frame, and each anti-collision pad 11 is detachably bound to the basket frame 100 by the net rope with magic tape. At this time, the multiple casualty rescue basket is in an unfolded and used state.

[0055] In use, when the stretcher 3 needs to be placed on the lower stretcher platform, first turn the rotating seat 2 of the upper stretcher platform outward to the corresponding stretcher placing area, then align and place the four support rod ends of the stretcher 3 into the clamping opening 443 of the four hanging basket stretcher lock buckles 4 of the lower stretcher platform. After the support rod ends of the stretcher 3 are clamped into the hanging basket stretcher lock buckles 4, under the gravity of the stretcher 3 and the wounded person lying on the stretcher 3, the support rods of the stretcher 3 will press the guide pieces 43 of the hanging basket stretcher lock buckles 4 downward, causing the guide pieces 43 to move downward along the positioning rods 42 against the upward elastic force of the springs 46. When the guide pieces 43 move downward, they will simultaneously drive the two lock buckle pieces 44 to move downward. During the downward movement of the two lock buckle pieces 44, the clamping portions 441 of the two lock buckle pieces 44 will automatically fold together through the waist-shaped long holes 444 and the guide cooperation with the corresponding guide pin shafts 48, so that the clamping portions 441 of the two lock buckle pieces 44 clamp the support rods of the stretcher 3 in a left-right opposite manner, thereby automatically locking and fixing the stretcher 3 on the corresponding stretcher platform.

[0056] In use, when the stretcher 3 needs to be placed on the upper stretcher platform, first turn the rotating seat 2 of the upper stretcher platform inward to the corresponding stretcher placing area 1, that is, turn the rotating seat 2 corresponding to the front leg 71 inward to the first locking hole facing the second spring ball head plunger 92 on the corresponding first horizontal support plate 91, so that the ball head of the second spring ball head plunger 92 is inserted into the corresponding first locking hole, thereby turning the rotating seat 2 corresponding to the front leg 71 inward into the corresponding stretcher placing area 1 and positioning it at a position that can form the upper stretcher platform together with the rotating seats. At the same time, turn the rotating seat 2 corresponding to the rear leg 81 inward to the second locking hole facing the third spring ball head plunger 94 on the corresponding second horizontal support plate 93, so that the ball head of the third spring ball head plunger 94 is inserted into the corresponding second locking hole, thereby turning the rotating seat 2 inward into the corresponding stretcher placing area 1 and positioning it at a position that can form the upper stretcher platform together with the rotating seats. Through the positioning of the rotating seats 2, the hanging basket stretcher lock buckles 4 of the upper stretcher platform can be positioned at the same time, so that the four hanging basket stretcher lock buckles 4 of the upper stretcher platform correspond to the four support rod ends of the stretcher 3. Then, align and place the four support rod ends of the stretcher 3 into the clamping opening 443 of the four hanging basket stretcher lock buckles 4 of the upper stretcher platform, so that the four hanging basket stretcher lock buckles 4 automatically clamp the four support rod ends of the stretcher 3, thereby automatically locking and fixing the stretcher 3 on the upper stretcher platform.

[0057] When the rescue aircraft transfers the multi-injured rescue basket in which multiple lying injured are placed to the designated area through the lifting rope, the stretcher placed on the upper stretcher platform can be taken off from the upper stretcher platform and taken out of the basket by lifting up; when the stretcher placed on the lower stretcher platform needs to be taken out of the basket, first, the rotating seat 2 constituting the upper stretcher platform is turned outward, so that the locking hole at the bottom of each rotating seat 2 is separated from the ball head of the corresponding spring ball head plunger, until each rotating seat 2 is turned outward out of the corresponding stretcher placement area, then the stretcher 3 placed on the lower stretcher platform is lifted up, so that the stretcher 3 can be taken off from the lower stretcher platform and taken out of the basket.

[0058] When the multi-injured rescue basket is idle, the multi-injured rescue basket can be folded and stored to reduce the storage space, and the specific operation process is as follows: first, the anti-collision pad 11 and the safety net 10 are removed, then the first locking pin 74 is pulled out of the first positioning pin hole 6111 of the front ear plate 611, at this time the front leg support 700 can be folded and folded on the upper frame front frame body 600 by rotating around the first hinge shaft, then the front leg support 700 can be folded and folded on the upper frame front frame body 600 by rotating around the first hinge shaft; then the second locking pin 84 is pulled out of the first positioning pin hole 6121 of the rear ear plate 612, at this time the rear leg support 800 can be folded and folded on the upper frame rear frame body 601 by rotating around the second hinge shaft, then the rear leg support 800 can be folded and folded on the upper frame rear frame body 601 by rotating around the second hinge shaft; then press the ball head of each first spring ball head plunger 610 corresponding to each sliding sleeve 68, so that the ball head of each first spring ball head plunger 610 is separated from each corresponding sliding sleeve positioning hole 69, at this time the sliding sleeve 68 can move along the front long rod and the rear long rod, then the sliding sleeve 68 is moved along the corresponding front long rod 62 and rear long rod 64 to not cover the hinge between the front long rod 62 and the pipe joint 65, and the hinge between the rear long rod 64 and the pipe joint 65, at this time the front frame body 600 and the rear frame body 601 can be rotated around the pipe joint 65, then the front frame body 600 and the rear frame body 601 are rotated around the pipe joint 65, so that the front frame body 600 and the rear frame body 601 are folded and folded, to complete the folding of the upper frame. At this time, the front leg support 700 and the rear leg support 800 are located in the leg support storage space formed after the folding of the upper frame, so that the folding of the multi-injured rescue basket is completed, and the storage space of the folded multi-injured rescue basket is small.

[0059] The advantages of the present application are: (1) when the support rod of the stretcher is put into the basket stretcher lock, the basket stretcher lock will automatically lock the stretcher support rod to lock and fix the stretcher on the stretcher platform, and only need to lift the stretcher, the basket stretcher lock will automatically release the stretcher support rod, so as to facilitate the removal of the stretcher, and there is no need for manual operation of the basket stretcher lock during the entire stretcher placing and removing process, which saves time and effort during the entire stretcher placing and removing process, thereby improving the rescue efficiency; (2) the rotating seats constituting the upper stretcher platform can rotate, when the stretcher placed in the lower stretcher platform needs to be removed, the rotating seats constituting the upper stretcher platform can all be turned outwards to the corresponding stretcher placing area, so that the stretcher placed on the lower stretcher platform can be moved upwards out of the basket frame; (3) the basket frame can be folded and stored when not in use, reducing the storage space when stored, and also very convenient to use when unfolded, and through the locking and locking mechanism, the use stability and safety of the basket frame when unfolded is effectively guaranteed; (4) the safety net and the anti-collision pad are arranged outside the basket frame, which improves the overall use safety of the basket, and the safety net and the anti-collision pad can be detached, which is convenient to disassemble; (5) only 4 patients in a lying position who need to lie on the stretcher can be carried at a time, and the rescue and transportation efficiency is high.

[0060] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below in combination with the drawings and examples.

[0061] The above is only the preferred embodiment of the present application, and is not intended to limit the present application in any other form, and any modification or equivalent change made according to the technical essence of the present application still falls within the scope of the present application.

Claims

1. A multi-casualty rescue basket, characterized in that: The system includes a basket frame, within which several stretcher placement areas are provided. Each stretcher placement area has two layers of stretcher platforms, one upper and one lower. The upper stretcher platform consists of four rotating seats located above the lower stretcher platform and distributed at the four corners of the corresponding stretcher placement area. Each rotating seat of the upper stretcher platform can rotate outward from the corresponding stretcher placement area so that the stretcher placed on the lower stretcher platform can be moved upward out of the basket frame, or rotate inward and positioned in the corresponding stretcher placement area so that it can form the upper stretcher platform together with the rotating seats. Several basket stretcher locks are provided on both the upper and lower stretcher platforms. Each basket stretcher lock on each stretcher platform can automatically lock the support rod of the stretcher to lock and fix the stretcher on the corresponding stretcher platform. The suspended basket frame structure includes: an upper frame, front leg frames, and rear leg frames. Of the four rotating seats constituting the upper stretcher, the two front rotating seats are respectively mounted on the two front legs of the front leg frames of the suspended basket frame. The specific installation structure of the rotating seats corresponding to the front legs includes: a first horizontal support plate fixed to the front leg; one end of the rotating seat movably sleeved on the front leg and resting downwards on the first horizontal support plate under its own weight, allowing the rotating seat to rotate freely around the front leg on the first horizontal support plate; a first mounting groove is provided on the upper surface of the end of the first horizontal support plate near the corresponding stretcher placement area; a second spring ball-head plunger is installed in the first mounting groove; the ball head of the second spring ball-head plunger always tends to extend upwards out of the first horizontal support plate; a first locking hole is provided at the bottom of the rotating seat; when the rotating seat rotates inwards around the corresponding front leg on the first horizontal support plate until the first locking hole faces the second spring ball-head plunger, the ball head of the second spring ball-head plunger will insert into the corresponding first locking hole, thereby positioning the rotating seat so that it can work together with the other rotating seats to form a complete structure. The position of the upper stretcher platform; of the four rotating seats constituting the upper stretcher, the two rotating seats located on the rear side are respectively installed on the two rear legs of the rear leg frame of the basket frame. The specific installation structure of the rotating seats corresponding to the rear legs includes: a second horizontal support plate is fixed on the rear leg, one end of the rotating seat is movably sleeved on the rear leg and rests downward on the second horizontal support plate under its own weight, so that the rotating seat can rotate freely around the rear leg on the second horizontal support plate. A second mounting groove is provided on the upper surface of the end of the second horizontal support plate near the corresponding stretcher placement area. A third spring ball head plunger is installed in the second mounting groove. The ball head of the third spring ball head plunger always tends to extend upward out of the second horizontal support plate. A second locking hole is provided at the bottom of the rotating seat. When the rotating seat rotates inward around the corresponding rear leg on the second horizontal support plate until the second locking hole is aligned with the third spring ball head plunger, the ball head of the third spring ball head plunger will insert into the corresponding second locking hole, thereby positioning the rotating seat in a position that can form the upper stretcher platform together with the other rotating seats.

2. The multi-casualty rescue basket according to claim 1, characterized in that: The structure of the hanging stretcher locking mechanism includes: a mounting base, a positioning rod, a guide member, and two locking members arranged on the left and right. The mounting base is used to fix the corresponding stretcher platform. The positioning rod is vertically fixed to the corresponding stretcher platform and located directly below the mounting base. The guide member is slidably sleeved on the outside of the positioning rod. An elastic mechanism is provided between the positioning rod and the guide member. The elastic mechanism makes the guide member always tend to move upward along the positioning rod. The lower ends of the two locking members are hinged to the upper end of the guide member through a coaxial hinge shaft. Each locking member has a hook-shaped clamping part. The two locking members are arranged with their clamping parts facing each other so that the clamping parts of the two locking members together form a clamping opening. Each clamping part of the two locking members is provided with an oblong hole. Two guide pins are fixed on the mounting base, which are symmetrically distributed on the left and right sides of the guide member. Each locking member corresponds to the guide pin on the same side. Each guide pin passes through the oblong hole of the clamping part of the corresponding locking member on the same side.

3. The multi-casualty rescue basket according to claim 2, characterized in that: The structure of the elastic mechanism includes: a positioning shoulder fixed on the outer wall of the guide member; a spring sleeved on the outside of the positioning rod; the upper end of the spring abutting upward against the positioning shoulder of the guide member; and the lower end of the spring abutting downward against the corresponding stretcher platform. Under the elastic force of the spring, the guide member always tends to move upward along the positioning rod.

4. The multi-casualty rescue basket according to claim 1, characterized in that: The upper framework includes: The front frame body in a "mountain" shape is composed of a front cross bar and three front long bars, and the rear frame body in a "mountain" shape is composed of a rear cross bar and three rear long bars; the three front long bars of the front frame body correspond to the three rear long bars of the rear frame body one by one, and a pipe joint is connected between each corresponding front long bar and rear long bar. The front end of each pipe joint is hinged to the rear end of the corresponding front long bar through a front pin shaft in the left-right direction, and the rear end of each pipe joint is hinged to the front end of the corresponding rear long bar through a rear pin shaft in the left-right direction. All the front pin shafts corresponding to the front ends of all the pipe joints are coaxially arranged, and all the rear pin shafts corresponding to the rear ends of all the pipe joints are coaxially arranged, so that the front frame body and the rear frame body can be folded and retracted or flattened with each other through each pipe joint. And after the front frame body and the rear frame body are folded and retracted through each pipe joint, the front frame body, the rear frame body and each pipe joint can form a leg frame storage space. A locking mechanism is also arranged on the upper frame. The locking mechanism can lock the flattened upper frame to keep the upper frame in a flattened posture, or can unlock the upper frame to enable the upper frame to be folded and retracted; the front leg frame includes: three front legs, and the lower parts of every two adjacent front legs are fixedly connected together through a bottom front beam; the three front legs of the front leg frame correspond to the three front long bars of the front frame body of the upper frame one by one, and the upper ends of the three front legs of the front leg frame are hinged to the front ends of the corresponding front long bars through a first hinge shaft, so that the front leg frame is hinged to the front frame body of the upper frame through the first hinge shaft, and when the front leg frame is folded and retracted around the first hinge shaft to the front frame body of the upper frame, it can be accommodated in the leg frame storage space formed after the upper frame is folded and retracted; a front locking mechanism is arranged between the front leg frame and the front frame body of the upper frame to enable the front leg frame to keep a vertical state relative to the front frame body of the upper frame; the rear leg frame includes: three rear legs, and the lower parts of every two adjacent rear legs are connected together through a bottom rear beam; the three rear legs of the rear leg frame correspond to the three rear long bars of the rear frame body of the upper frame one by one, and the upper ends of the three rear legs of the rear leg frame are hinged to the rear ends of the corresponding rear long bars through a second hinge shaft, so that the rear leg frame is hinged to the rear frame body of the upper frame through the second hinge shaft, and when the rear leg frame is folded and retracted around the second hinge shaft to the rear frame body of the upper frame, it can be accommodated in the leg frame storage space formed after the upper frame is folded and retracted; a rear locking mechanism is arranged between the rear leg frame and the rear frame body of the upper frame to enable the rear leg frame to keep a vertical state relative to the rear frame body of the upper frame.

5. The multi-casualty rescue basket according to claim 4, characterized in that: The locking mechanism comprises: a sliding sleeve slidably fitted around each corresponding set of front long rods, tube joints, and rear long rods; positioning holes provided on the front and rear end sidewalls of the sliding sleeve; a mounting hole located in front of the front pin on the rear end sidewall of the front long rod; and a mounting hole located behind the rear pin on the front end sidewall of the rear long rod. A first spring ball plunger is installed in each mounting hole, and the ball head of the first spring ball plunger always tends to extend out of the corresponding long rod sidewall. When the upper frame is flattened, when the sliding sleeve moves along the corresponding set of front long rods, tube joints, and rear long rods until the positioning hole at the front end of the sliding sleeve corresponds exactly to the rear section of the front long rod. When the mounting hole and / or the positioning hole at the rear end of the sliding sleeve corresponds exactly to the mounting hole at the front end of the rear long rod, the ball head of the first spring ball plunger in each mounting hole corresponding to the positioning hole will insert into the corresponding positioning hole to position and fix the sliding sleeve, so that the sliding sleeve can simultaneously cover the hinge joint of the front long rod and the tube joint, as well as the hinge joint of the rear long rod and the tube joint, thereby keeping the upper frame flat; when the ball head of the first spring ball plunger is pressed to disengage from the corresponding sliding sleeve positioning hole, and the sliding sleeve is moved along the corresponding front long rod and the rear long rod until it no longer covers the hinge joint of the front long rod and the tube joint, as well as the hinge joint of the rear long rod and the tube joint, the upper frame can be folded and retracted.

6. The multi-casualty rescue basket according to claim 4, characterized in that: The front locking mechanism includes: downwardly protruding front ear plates are respectively installed at the front ends of the three front long rods of the upper frame front frame. The front ear plate of each front long rod is hinged to the upper end of the corresponding front leg of the front leg frame through a first pin that runs left and right. All the first pins are coaxially arranged to form a first hinge shaft that hinges the front leg frame to the upper frame front frame. A first positioning pin hole is also provided on each front ear plate of the upper frame front frame, and a second positioning pin hole is also provided on each front leg of the front leg frame. When the front leg frame rotates around the upper frame front frame to an upright position, the second positioning pin hole of each front leg of the front leg frame corresponds exactly to the first positioning pin hole of each corresponding front ear plate in the upper frame front frame. At this time, a first locking pin is inserted into each pair of corresponding first positioning pin holes and second positioning pin holes, so that the front leg frame remains upright relative to the upper frame front frame.

7. The multi-casualty rescue basket according to claim 4, characterized in that: The rear locking mechanism includes: downwardly protruding rear ear plates installed at the front ends of the three rear long rods of the upper frame rear body. The rear ear plate of each rear long rod is hinged to the upper end of the corresponding rear leg of the rear leg frame through a second pin that runs left and right. All the second pins are coaxially arranged to form a second hinge shaft that hinges the rear leg frame to the upper frame rear body. A third positioning pin hole is also provided on each rear ear plate of the upper frame rear body, and a fourth positioning pin hole is also provided on each rear leg of the rear leg frame. When the rear leg frame rotates around the upper frame rear body to an upright position, the fourth positioning pin hole of each rear leg of the rear leg frame corresponds exactly to the third positioning pin hole of each corresponding rear ear plate in the upper frame rear body. At this time, a second locking pin is inserted into each pair of corresponding third positioning pin holes and fourth positioning pin holes, so that the rear leg frame remains upright relative to the upper frame rear body.

8. The multi-casualty rescue basket according to any one of claims 1 to 7, characterized in that: Safety nets are installed on all four sides and at the bottom of the suspended platform frame, and several anti-collision pads are installed on the outside of the safety nets.

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