Shoulder and back dual-purpose water wounded transfer lifting board

Abstract

The utility model relates to the technical field of life-saving lifting board on water, and disclose a shoulder and back hang and buckle dual -purpose type water wounded transfer lifting board, including lifting frame, lifting frame is the hollow tail end of inside and communicates with the outside inverted ''U'' shape, the tail end of inside of lifting frame is connected with the support, the support structure is identical with lifting frame, but the support and lifting frame form the symmetrical posture, and the diameter of support is less than the inner diameter of lifting frame, and the inside bottom of lifting frame and the inside bottom of support are all installed with the float plate, and four -point formula plug buckle safety waistband is still installed in the bottom of lifting frame, the tail end of inside of lifting frame and the tail end of support still are connected with the steering structure. The utility model is connected with the sliding block of operating lever to carry out the location to lifting frame and support in the form of plug -in, makes the support folding in lifting frame and form the posture of back frame, can be used for carrying materials in disaster relief, still can make the support and lifting frame lie in the same horizontal line, as lifting board to rescue the wounded, reaches the beneficial effect that lifting board can be single -person shoulder and back hang and buckle carry when necessary and expand participate in the water wounded rescue.

Description

Technical Field

[0001] This utility model relates to the field of water rescue lifting board technology, specifically a dual-purpose shoulder and back hook water casualty transfer lifting board. Background Technology

[0002] Stretchers are commonly used transport tools in the medical field, facilitating the lying down of patients and injured persons during transport. Floating stretchers are used for water rescue. A floating stretcher typically consists of a stretcher body, handles, and restraint straps. During a rescue, the person to be rescued is placed inside the floating stretcher, which is then used for transport. Floating stretchers have airbags or floats that utilize the buoyancy of the water to offset the person's weight, making the transfer of injured persons in the water easier. Existing technology CN 108750043 In section B of the instruction manual, paragraph 0028 states that "the board body can be made of plastic to further reduce weight and increase buoyancy; the floating body can be a sealed plastic structure or a canvas inflatable structure. The board body and the floating body are detachably connected through a snap-fit ​​cone with an inverted conical structure and an open sleeve ring. The opening of the sleeve ring faces outward, and an elastic band is provided between the floating bodies. This allows the two floating bodies to become one unit and provides inward pulling force to the two floating bodies, further ensuring that the snap-fit ​​cone does not slip out of the outward-opening sleeve ring." This discloses a waterborne casualty transfer platform, as seen in prior art CN 116725778. A "stretcher board floats on the water surface via a floating frame. After rescuers place the injured person on the stretcher board, they control the action of the covering component to block sunlight and rain. At the same time, the strap component automatically works to bind and secure the injured person, improving the rescue efficiency and effectiveness. Furthermore, while the strap component secures the injured person to the stretcher board, the lifting component moves to raise the stretcher board, lifting the injured person to a height above the water surface, preventing wound infection and improving the safety and effectiveness of stretcher use." This improvement in the contact between the lifting board and the water surface prevents wound infection.

[0003] While the above technical solutions can all be applied to water rescue, they have significant drawbacks. They cannot be stored properly. Floods or locations where people fall into the water are themselves bodies of water with complex underwater conditions. Before transporting the injured, the lift must be carried to the vicinity of the injured by rescuers. However, the lift is bulky and requires at least two rescuers, one in front and one behind, to control its direction and angle. Otherwise, if one person lifts the lift, one end will be higher than the other, and the other end will be submerged in water. Therefore, existing lifts are simply not convenient for use in water rescue. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a dual-purpose shoulder and back hook-type waterborne casualty transfer platform. It has the advantage that the platform can be carried by a single person using a shoulder and back hook and can be deployed when necessary to participate in waterborne casualty rescue, thus solving the aforementioned technical problems.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a shoulder and back hook dual-purpose waterborne casualty transfer platform, including a lifting frame, the lifting frame being an inverted "U" shape with a hollow inner side and the tail end communicating with the outside, a footboard connected to the inner tail end of the lifting frame, the footboard structure being consistent with the lifting frame, but the footboard and the lifting frame forming a symmetrical posture, and the diameter of the footboard being smaller than the inner diameter of the lifting frame, floats being installed on the inner bottom of the lifting frame and the inner bottom of the footboard, and a four-point buckle safety belt being installed at the bottom of the lifting frame; A steering mechanism is also connected to the inner end of the lifting frame and the end of the tripod. The steering structure includes through holes on both sides of the rear end of the lifting frame, a slider sliding inside the through holes, a foot bracket at the front end of the slider, and an operating rod extending to the outside of the lifting frame at the rear end of the slider. The steering structure also includes inner rods mounted on both sides of the tail end of the tripod and extending into the inside of the through hole. The inner rods are rotatably connected to the through hole, and the inner rods are limited when they contact the slider.

[0006] As a preferred technical solution of this utility model, there are multiple floats, which are installed on the inner side of the lifting frame and the tripod in an alternating manner. The two ends of the floats are fixedly connected to the inner side of the lifting frame and the tripod by hot fusion. The floats are hollow blocks made of ABS material. The floats on the inner side of the lifting frame and the tripod are of uniform height, and the height of the tripod is half that of the lifting frame.

[0007] As a preferred technical solution of this utility model, the float plate has a minimum length of 80 cm, a minimum width of 30 cm, a minimum height of 20 cm, and a hollow float plate thickness of 3 cm. At the same time, the float plate inside the lifting frame is longer due to the influence of the inner length of the lifting frame and the tripod. The length of the float plate is determined by the inner width of the lifting frame and the tripod during actual use, but it shall not be less than 80 cm.

[0008] As a preferred technical solution of this utility model, the through hole in the steering structure is rectangular at the rear and circular at the front. The circular part at the front of the through hole directly penetrates the tail end of the lifting frame and contacts the foot frame. The slider is cylindrical and slidably connected to the inside of the through hole. A rectangular notch is opened on the front wall of the slider. The steering structure also includes a locking block, which is symmetrically installed on both sides inside the rectangular part at the rear of the through hole. The operating rod is also rectangular and fits the rear of the through hole and is fixedly connected to the slider. Grooves that fit the locking block are also opened through both sides of the operating rod. The inner rod is a block with a rectangular rear and circular front. The circular part at the front of the inner rod is rotatably connected to the through hole, and the rectangular part at the rear is located opposite the notch.

[0009] As a preferred technical solution of this utility model, the inner rod front end near the circular part of the through hole front end is also provided with an annular recess. The recess fits and is fixedly installed at the opening of the circular part of the through hole front end. The inner rod forms a rotatable connection with the through hole by relying on the recess.

[0010] As a preferred embodiment of this utility model, the through hole in the steering structure is circular at the rear and rectangular at the front. The circular part at the rear of the through hole is threadedly connected to the operating rod. The front end of the operating rod is rotatably connected to the slider via a bearing. The slider is located at the rectangular part at the front of the through hole and is also rectangular itself, with the two sliding together. An insertion hole is opened on the front wall of the slider, and the inner side of the insertion hole fits the inner rod. The inner rod is fixedly installed on the inner side of the stand, and the stand is inserted into the insertion hole after passing through it to form a rotatable connection.

[0011] As a preferred technical solution of this utility model, the steering structure also includes a docking groove, which is opened on the side of the foot near the through hole, and the depth of the docking groove is only one-third of the thickness of the slider. The inner side of the docking groove fits the slider and forms a sliding connection with it.

[0012] Compared with the prior art, this utility model provides a dual-purpose shoulder and back hook-type waterborne casualty transfer board, which has the following beneficial effects: This utility model uses a slider connected to an operating lever to limit the movement of the lifting frame and the tripod in a plug-in manner, so that the tripod is folded into the lifting frame to form a back frame posture. It can be used to transport materials in disaster relief, and the tripod can also be laid flat on the same horizontal line as the lifting frame to be used as a lifting board to rescue the wounded. It achieves the beneficial effect that the lifting board can be carried by a single person on their shoulder and hook, and can be unfolded when necessary to participate in water rescue. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model; Figure 2 This is a schematic diagram of the lifting frame structure and the leg structure at a 90-degree angle according to Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the tripod structure fitting with the lifting frame structure in one embodiment of this utility model; Figure 4 This is an exploded view of the steering structure according to Embodiment 1 of this utility model; Figure 5 This is a front sectional view of the overall structure of Embodiment 2 of this utility model; Figure 6 This is an exploded view of the steering structure in Embodiment 2 of this utility model.

[0014] The components are: 1. Lifting frame; 2. Leg frame; 3. Floating plate; 4. Through hole; 401. Sliding block; 4011. Notch; 402. Operating rod; 403. Locking block; 5. Inner rod; 6. Insertion hole; 7. Connecting groove. Detailed Implementation

[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0016] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Please see Figure 1-5 A dual-purpose shoulder and back hook-type waterborne casualty transfer platform includes a lifting frame 1. The lifting frame 1 is an inverted "U" shape with a hollow inner side and a tail end connected to the outside. A foot frame 2 is connected to the inner tail end of the lifting frame 1. The structure of the foot frame 2 is the same as that of the lifting frame 1, but the foot frame 2 and the lifting frame 1 form a symmetrical posture, and the diameter of the foot frame 2 is smaller than the inner diameter of the lifting frame 1. A float 3 is installed on the inner bottom of both the lifting frame 1 and the inner bottom of the foot frame 2. A four-point buckle safety belt is also installed at the bottom of the lifting frame 1. A steering structure is also connected to the inner end of the lifting frame 1 and the end of the leg frame 2; The steering structure includes through holes 4 on both sides of the tail end of the lifting frame 1, a slider 401 is slidably connected inside the through holes 4, the front end of the slider 401 is snapped into the foot bracket 2, and the tail end of the slider 401 is connected to the operating rod 402 extending to the outside of the lifting frame 1. The steering structure also includes inner rods 5 installed on both sides of the tail end of the foot bracket 2 and extending into the inside of the through hole 4. The inner rods 5 are rotatably connected to the through hole 4, and the inner rods 5 are limited when they contact the slider 401.

[0019] In this application, the lifting frame 1 and the tripod 2 are supported by aluminum alloy and have an inner hollow structure with a wall thickness greater than three centimeters, as shown in the attached instruction manual. Figure 4 As shown, the lifting frame 1 is rotatably connected to the front end of the inner rod 5 through the through holes 4 on both sides of the tail end. At this time, the legs 2 fixedly connected to the inner rod 5 and the lifting frame 1 corresponding to the through holes 4 form a relative rotatable connection, that is, the legs 2 and the lifting frame 1 can rotate freely. According to the instruction manual... Figure 1-3As shown, with the steering structure unlocked, the tripod 2 is flipped so that its tail end is rotatably connected to the tail end of the lifting frame 1, and the tripod 2 is flipped so that it approaches the top surface of the lifting frame 1, as shown in the attached instruction manual. Figure 1-2 As shown, except for the part where the inner rod 5 is installed, the thickness of the tripod 2 is half that of the lifting frame 1, and the bottoms of the two are flush. At this time, the tripod 2 can be rotated towards the lifting frame 1 to form a 90-degree or 180-degree fit without touching the lifting frame 1 and causing hard friction. Furthermore, when the lifting frame 1 and the tripod 2 form a 90-degree perpendicular state, the locking steering structure is engaged with the four-point buckle safety belt at the bottom of the lifting frame 1 to form a shoulder and back hook frame. The rescuer directly fastens the four-point buckle safety belt on his / her shoulder and abdomen to lock it, and moves with the lifting frame 1 and the tripod 2 on his / her back. The buckle safety belt of this application is a direct application of the existing belt. It adopts the SKYLOTEC four-point buckle installation belt, which can be purchased directly from shopping websites or markets. The product number is BST. Since this application does not make any structural improvements to the buckle installation belt, and the installation method of the buckle installation belt is also to directly fix it to the bottom of the lifting frame 1 with bolts, its usage will not be described in detail.

[0020] Furthermore, the float plate 3 consists of multiple pieces, which are installed on the inner side of the lifting frame 1 and the foot frame 2 in an alternating pattern. The two ends of the float plate 3 are fixedly connected to the inner side of the lifting frame 1 and the foot frame 2 by heat fusion. The float plate 3 is a hollow block made of ABS material. The float plates 3 on the inner side of the lifting frame 1 and the foot frame 2 are of the same height, and the height of the foot frame 2 is half that of the lifting frame 1.

[0021] Furthermore, the length of the float 3 is at least 80 centimeters, the width is at least 30 centimeters, the height is at least 20 centimeters, and the thickness of the hollow float 3 is 3 centimeters.

[0022] Due to the influence of the inner length of the lifting frame and tripod, the float on the inner side of the lifting frame is longer. The length of the float is determined by the actual width of the inner side of the lifting frame and tripod during use, but it shall not be less than 80 centimeters.

[0023] As per the instruction manual Figure 1 As shown, the floats 3 in this application consist of at least eight pieces, and the total buoyancy of the floats 3 is calculated accordingly: Density of water: Density of ABS plastic: ; Load capacity: 150 kg; Number of floating platforms: 10; The internal cavity volume of a single floating plate has a uniform wall thickness of 3cm. Internal length ; Internal width ; Internal height ; Internal volume ; Volume of a single floating plate shell, volume of ABS material: ; The weight of a single floating platform: ; Maximum buoyancy of a single float: ; The net buoyancy of a single float is calculated as buoyancy minus its own weight. ; Total net buoyancy of the eight floats: .

[0024] This application ensures that the lifting frame 1, the tripod 2, and the injured person placed on top of them can float on the water surface by forming a buoyancy of nearly 190 kg through at least eight float plates 3. That is, the weight of the injured person shall not exceed 180 kg. The eight float plates 3 are calculated uniformly here only for the convenience of calculation. Due to the influence of the inner length of the lifting frame and the tripod, the float plate on the inner side of the lifting frame is longer. The length of the float plate is determined by the inner width of the lifting frame and the tripod in actual use, but it shall not be less than 80 cm. This application uses 80 cm for uniform calculation, but the actual buoyancy is higher.

[0025] Example 1 In the steering structure, the through hole 4 is rectangular at the rear and circular at the front. The circular part at the front of the through hole 4 directly penetrates the tail end of the lifting frame 1 and contacts the foot frame 2. The slider 401 is cylindrical and slidably connected to the inside of the through hole 4. A rectangular notch 4011 is opened on the front wall of the slider 401. The steering structure also includes a locking block 403, which is symmetrically installed on both sides inside the rectangular part at the rear of the through hole 4. The operating rod 402 is also rectangular and fits the rear end of the through hole 4 and is fixedly connected to the slider 401. The operating rod 402 also has slots through its sides that fit the locking block 403. The inner rod 5 is a block with a rectangular rear and circular front. The circular part at the front of the inner rod 5 is rotatably connected to the through hole, and the rectangular part at the rear is located opposite the notch 4011.

[0026] When the tripod 2 needs to rotate, first pull out the operating lever 402. As the operating lever 402 moves outward from the through hole 4, the grooves on both sides of it slide into the locking block 403. At this time, the locking block 403 does not obstruct the operating lever 402. However, as the slider 401 is pulled outward along with the operating lever 402, the slider 401 will contact the locking block 403 and be blocked by the locking block 403. This indicates that the slider 401 has released the lock on the inner rod 5. At this time, the tripod 2 can be rotated. As the tripod 2 rotates, the inner rod 5, which is fixedly connected to it, rotates inside the through hole 4. When the tripod 2 is relatively vertical or covers the lifting frame 1, the inner rod 5 stops rotating. At this time, as shown in the attached instruction manual... Figure 4 As shown, the operating lever 402 is pushed in again. Since the operating lever 402 is independent of the inner rod 5 and is not affected by rotation, the original path is reset to allow the slider 401 to continue moving towards the inner rod 5. Since the inner rod 5 is a block with a rectangular rear end and a circular front end, the rectangle of the inner rod 5 remains a rectangle regardless of whether the leg 2 is rotated 90 degrees relative to the lifting frame 1 or directly 180 degrees. Then the slider 401 covers the inner rod 5, and the notch 4011 on its front wall engages with the rear rectangular end of the inner rod 5 to form a lock. At this time, the posture of the lifting frame 1 and the leg 2 is locked. Furthermore, when the rescuers carry the folded lifting frame 1 and leg 2 to the injured person, the two rescuers each repeat the above operation to release the lock of the leg 2 and then flip the leg 2 back to its original position. At this time, the lifting frame 1 and the leg 2 unfold into a lifting plate.

[0027] Furthermore, the inner rod 5 has an annular recess on the circular part near the front end of the through hole 4. This recess fits and is fixedly installed on the ring at the opening of the circular part at the front end of the through hole 4. The inner rod 5 is rotatably connected to the through hole 4 by means of the recess.

[0028] The annular recess and the ring body interlock with each other, so that the inner rod 5 can rotate and connect to the through hole 4 without falling out of the through hole 4.

[0029] In use, the lifting frame 1 is rotatably connected to the front end of the inner rod 5 through the through holes 4 on both sides of the tail end. At this time, the legs 2 fixedly connected to the inner rod 5 and the lifting frame 1 corresponding to the through holes 4 form a relative rotatable connection, that is, the legs 2 and the lifting frame 1 can rotate freely. According to the instruction manual attached... Figure 1-3 As shown, with the steering structure unlocked, the tripod 2 is flipped so that its tail end is rotatably connected to the tail end of the lifting frame 1, and the tripod 2 is flipped so that it approaches the top surface of the lifting frame 1, as shown in the attached instruction manual. Figure 1-2As shown, except for the part where the inner rod 5 is installed, the thickness of the tripod 2 is half that of the lifting frame 1, and the bottoms of the two are flush. At this time, the tripod 2 can be rotated towards the lifting frame 1 to form a 90-degree or 180-degree fit without touching the lifting frame 1 and causing hard friction. Furthermore, when the lifting frame 1 and the tripod 2 form a 90-degree perpendicular state, the steering structure is locked and the operating rod 402 is pushed in. Since the operating rod 402 is independent of the inner rod 5 and is not affected by rotation, the original path is reset to allow the slider 401 to continue moving towards the inner rod 5. Since the inner rod 5 is a block with a rectangular rear end and a circular front end, the slider 401 covers the inner rod 5, and the notch 4011 on its front wall engages with the rectangular rear end of the inner rod 5 to form a lock. At this time, it cooperates with the four-point buckle safety belt at the bottom of the lifting frame 1 to form a shoulder and back buckle frame, allowing rescue personnel to... The four-point buckle waist belt is directly fastened to the shoulders, back, and abdomen for locking. While carrying the lifting frame 1 and tripod 2, the rescuer, upon reaching the injured person with the folded lifting frame 1 and tripod 2, first pulls out the operating lever 402. As the operating lever 402 moves outward from the through hole 4, its side slots slide into the locking blocks 403. At this time, the locking blocks 403 do not obstruct the operating lever 402. However, as the slider 401 is pulled outward along with the operating lever 402, the slider 401 will contact the locking blocks 403 and be blocked. This indicates that the slider 401 has released the lock on the inner rod 5. At this point, the tripod 2 can be rotated. As the tripod 2 rotates, the inner rod 5, which is fixedly connected to it, rotates inside the through hole 4. When the tripod 2 is relatively vertical or covers the lifting frame 1, the inner rod 5 stops rotating. At this point, as per the instruction manual... Figure 4 As shown, the operating lever 402 is pushed in again. Since the operating lever 402 is independent of the inner rod 5 and is not affected by rotation, the original path is reset to allow the slider 401 to continue moving towards the inner rod 5. Since the inner rod 5 is a block with a rectangular rear end and a circular front end, the slider 401 covers the inner rod 5, and the notch 4011 on its front wall engages with the rectangular rear end of the inner rod 5 to form a lock. At this time, the lifting frame 1 and the footrest 2 unfold into a lifting plate. The buoyancy of nearly 190 kilograms formed by at least eight floating plates 3 ensures that the lifting frame 1, the footrest 2, and the injured person placed on them can float on the water.

[0030] Example 2 Furthermore, in the steering structure, the through hole 4 is circular at the rear and rectangular at the front. The circular part at the rear of the through hole 4 is threadedly connected to the operating rod 402. The front end of the operating rod 402 is rotatably connected to the slider 401 via a bearing. The slider 401 is located at the rectangular part at the front of the through hole 4 and is also rectangular itself, with the two sliding together. An insertion hole 6 is opened on the front wall of the slider 401. The inner rod 5 fits inside the insertion hole 6. The inner rod 5 is fixedly installed inside the foot bracket 2, and the foot bracket 2 is inserted into the insertion hole 6 after passing through it to form a rotatable connection.

[0031] Furthermore, the steering structure also includes a docking groove 7, which is opened on the side of the leg 2 near the through hole 4, and the depth of the docking groove 7 is only one-third of the thickness of the slider 401. The inner side of the docking groove 7 fits the slider 401 and forms a sliding connection with it.

[0032] In Embodiment 1, the slider 401 connected by the operating lever 402 limits the lifting frame 1 and the foot frame 2 in a plug-in manner, so that the foot frame 2 is folded onto the lifting frame 1 to form a back frame posture, which can be used to transport materials in disaster relief. It can also make the foot frame 2 flat and at the same level as the lifting frame 1 to be used as a lifting board to rescue the wounded. However, the plug-in operation also requires a pull-out operation, which is not convenient for single-person operation. Therefore, this embodiment is proposed.

[0033] In this embodiment, the inner rod 5 is fixedly installed inside the leg 2, and the leg 2 is inserted through and into the inner side of the insertion hole 6 to form a rotatable connection. At this time, the leg 2 fixedly connected by the inner rod 5 and the lifting frame 1 corresponding to the through hole 4 form a relative rotatable connection, that is, the leg 2 and the lifting frame 1 can rotate freely. According to the appendix of the instruction manual... Figure 1-3 As shown, the through hole 4 is circular at the rear and rectangular at the front. When the slider 401 is in the rectangular part of the through hole 4, the leg 2 fixed to the inner rod 5 is relatively free to rotate relative to the lifting frame 1. At this time, the steering structure is not locked. When the steering structure is not locked, the leg 2 is flipped so that its tail end is relatively rotated and connected to the tail end of the lifting frame 1, and the leg 2 is flipped and close to the top surface of the lifting frame 1. At the same time, as shown in the attached instruction manual. Figure 1-2As shown, except for the part where the inner rod 5 is installed, the thickness of the leg 2 is half that of the lifting frame 1, and the bottoms of the two are flush. At this time, the leg 2 can be rotated towards the lifting frame 1 to form a 90-degree or 180-degree fit without touching the lifting frame 1 and causing hard friction. Furthermore, when the lifting frame 1 and the leg 2 form a 90-degree perpendicular state, the steering structure is locked. The rescuer holds the operating rod 402 and rotates it clockwise, so that the operating rod 402 is threadedly connected to the circular part of the through hole 4. At this time, the operating rod 402 moves towards the leg 2 along the through hole 4. When the operating rod 402 moves, it will bring the slider 401 to move in the rectangular part of the through hole 4, and the insertion hole 6 at the front end of the slider 401 continuously accommodates the inner rod 5. Then the slider 401 contacts the docking groove 7. At this time, the slider 401 and the inner rod 5 are connected. When the inner rod 5 is in the rectangular part of the docking groove 7 and the through hole 4, it cannot rotate because the docking groove 7 of the fixedly connected leg 2 is blocked by the slider 401, thus forming a lock. Together with the four-point buckle safety belt at the bottom of the lifting frame 1, it forms a shoulder and back hook frame. The rescuer directly attaches the four-point buckle safety belt to his / her shoulder and abdomen to lock it, and moves with the lifting frame 1 and leg 2 on his / her back. When the rescuer arrives at the rescue site, the steering structure is unlocked. In this embodiment, only the operating lever 402 needs to be rotated. To unlock the steering structure, rotate it counterclockwise. The operating lever 402 drives the slider 401 out of the docking groove 7. In this embodiment, only the operating lever 402 needs to be rotated to lock and unlock the steering structure, which is suitable for single-person operation.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-purpose shoulder and back hook-type waterborne casualty transfer board, characterized in that: The system includes a lifting frame (1), which is an inverted "U" shape with a hollow inner side and a tail end connected to the outside. The inner tail end of the lifting frame (1) is connected to a leg (2). The structure of the leg (2) is the same as that of the lifting frame (1), but the leg (2) and the lifting frame (1) form a symmetrical posture. The diameter of the leg (2) is smaller than the inner diameter of the lifting frame (1). A float plate (3) is installed on the inner bottom of the lifting frame (1) and the inner bottom of the leg (2). A four-point buckle safety belt is also installed at the bottom of the lifting frame (1). The inner end of the lifting frame (1) and the end of the foot frame (2) are also connected to a steering structure for controlling the relative angle between the lifting frame (1) and the foot frame (2); The steering structure includes through holes (4) on both sides of the tail end of the lifting frame (1), a slider (401) is slidably connected to the inside of the through holes (4), the front end of the slider (401) is snapped into the foot bracket (2), and the tail end of the slider (401) is connected to an operating rod (402) extending to the outside of the lifting frame (1). The steering structure also includes inner rods (5) installed on both sides of the tail end of the footplate (2) and extending into the inside of the through hole (4). The inner rods (5) are rotatably connected to the through hole (4), and the inner rods (5) are limited when they contact the slider (401).

2. The dual-purpose shoulder and back hook-type waterborne casualty transfer board according to claim 1, characterized in that: The float (3) consists of multiple pieces, which are installed on the inner side of the lifting frame (1) and the foot frame (2) in an alternating arrangement. The two ends of the float (3) are fixedly connected to the inner side of the lifting frame (1) and the foot frame (2) by hot fusion. The float (3) is a hollow block made of ABS material. The float (3) on the inner side of the lifting frame (1) and the foot frame (2) are of the same height, and the height of the foot frame (2) is half that of the lifting frame (1).

3. The dual-purpose shoulder and back hook-type waterborne casualty transfer board according to claim 2, characterized in that: The float (3) has a minimum length of 80 cm, a minimum width of 30 cm, a minimum height of 20 cm, and a thickness of 3 cm for hollow floats (3).

4. A dual-purpose shoulder and back hook-type waterborne casualty transfer platform according to claim 2 or 3, characterized in that: The through hole (4) in the steering structure is rectangular at the rear and circular at the front. The circular part at the front of the through hole (4) directly penetrates the tail end of the lifting frame (1) and contacts the foot frame (2). The slider (401) is cylindrical and slidably connected to the inside of the through hole (4). A rectangular notch (4011) is opened on the front wall of the slider (401). The steering structure also includes a locking block (403). The locking block (403) is symmetrically installed on both sides inside the rectangular part at the rear end of the through hole (4). The operating rod (402) is also rectangular and fits the rear end of the through hole (4) and is fixedly connected to the slider (401). The operating rod (402) also has slots through which it fits the locking block (403). The inner rod (5) is a block with a rectangular rear and circular front. The circular part at the front end of the inner rod (5) is rotatably connected to the through hole, and the rectangular part at the rear end is located opposite the notch (4011).

5. A dual-purpose shoulder and back hook-type waterborne casualty transfer board according to claim 4, characterized in that: The inner rod (5) has an annular recess at the front end of the circular part near the front end of the through hole (4). The recess fits and is fixedly installed at the opening of the circular part at the front end of the through hole (4). The inner rod (5) forms a rotatable connection with the through hole (4) by relying on the recess.

6. A dual-purpose shoulder and back hook-type waterborne casualty transfer platform according to claim 2 or 3, characterized in that: The through hole (4) in the steering structure is circular at the rear and rectangular at the front. The circular part at the rear of the through hole (4) is threaded to the operating rod (402). The front end of the operating rod (402) is rotatably connected to the slider (401) through a bearing. The slider (401) is located at the rectangular part at the front end of the through hole (4) and is also rectangular. The two slide together. The front wall of the slider (401) has an insertion hole (6). The inner side of the insertion hole (6) fits the inner rod (5). The inner rod (5) is fixedly installed on the inner side of the stand (2) and inserts the stand (2) through it into the inner side of the insertion hole (6) to form a rotatable connection.

7. A dual-purpose shoulder and back hook-type waterborne casualty transfer board according to claim 6, characterized in that: The steering structure also includes a docking groove (7), which is opened on the side of the bracket (2) near the through hole (4), and the depth of the docking groove (7) is only one-third of the thickness of the slider (401). The inner side of the docking groove (7) fits the slider (401) and forms a sliding connection with it.

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