Supporting and fixing device for rescue air cushions

Abstract

The utility model relates to a kind of supporting fixing device for rescue air cushion, belong to rescue equipment technical field.The device includes fixed frame, several lifting components, several moving components and buffer protection component;The fixed frame is composed of border and the reinforcing rib of internal intersection arrangement;The lifting component is set in the border bottom, for adjusting the height of the fixed frame;The moving component is set in the bottom corner of the border;The buffer protection component is circumferentially arranged in the inboard of the fixed frame, and rescue air cushion can be detachably connected.The utility model is reasonable in structure, can effectively support and fix rescue air cushion, improve rescue efficiency and safety.

Description

Technical Field

[0001] This application relates to a support and fixing device for a rescue air cushion, belonging to the technical field of rescue equipment. Background Technology

[0002] Rescue air cushions are commonly used safety protection devices in fields such as fire rescue and high-altitude operations. They are mainly used to catch people falling from heights, reduce impact, and ensure personnel safety. With the increasing complexity and specialization of rescue work, higher requirements are placed on the stability, safety, and adaptability of rescue air cushions. Currently, common rescue air cushions on the market mainly consist of an air chamber, an inflation system, and a fixing device. In actual use, the fixing and support of the rescue air cushion has always been a key factor affecting its rescue effectiveness. Existing technologies mainly use traditional methods for fixing rescue air cushions, such as ground stakes, sandbag weights, and ropes. These methods have certain limitations in specific environments.

[0003] For example, CN220938816U discloses a support and fixing device for a rescue air cushion. This device includes an outer frame and clamping plates disposed on both sides of the inner cavity of the outer frame. The clamping plates are slidably connected to the inner sidewall of the outer frame and can be adjusted according to the size of the air cushion. Although this device solves the problem of size adaptation between the air cushion and the fixing device, its support stability and height adjustment capability still need to be improved in complex terrain environments.

[0004] In addition, existing traditional rescue air cushions have the following problems that urgently need to be solved during actual deployment and use:

[0005] 1. It is difficult to maintain a relatively horizontal position on complex terrain.

[0006] Air cushions rely on internal air pressure to form a bearing surface. If there is a significant inclination or slope difference between the bottom surface and the ground, the gas will accumulate on the lower side, causing uneven pressure distribution within the air cushion. Local tilting will cause rescuers to land off-center, or due to differences in elastic resilience, personnel may be "bounced" away, seriously threatening rescue safety.

[0007] 2. Risk of breakage in complex environments

[0008] In rescue environments such as construction sites, collapse sites, and mountainous areas, the ground is often littered with gravel, steel bars, pipes, and other sharp foreign objects, and the ground is uneven. If an air cushion is laid directly on such a surface, on the one hand, localized stress concentration can cause the material to collapse or be punctured; on the other hand, the uneven bottom surface will create "rigid support points" under the air cushion, causing an imbalance in the overall load distribution of the air chamber.

[0009] 3. Limited fixation effect

[0010] Traditional anchoring methods rely on ground stakes, sandbags, and ropes, which are time-consuming. In the event of wind or repeated trampling, the air cushion is prone to displacement and tipping, requiring rescuers to constantly reposition it and wasting precious rescue time.

[0011] In summary, existing rescue air cushions struggle to simultaneously achieve horizontal stability, adaptability to complex terrain, and rapid positioning and fixation efficiency during deployment. Therefore, a novel rescue air cushion support and fixation device is urgently needed. Utility Model Content

[0012] To address the aforementioned issues, a support and fixing device for a rescue air cushion is provided. By incorporating a reinforced fixing frame, movable components, and lifting components, it can be quickly deployed to a designated location and its height adjusted according to the terrain, maintaining the air cushion's bearing surface at a relatively horizontal level to ensure rescue safety. Furthermore, it prevents the air cushion from directly contacting the ground, effectively protecting the air cushion and providing ample support and cushioning.

[0013] According to one aspect of this application, a support and fixing device for a rescue air cushion is provided, including a fixed frame, a plurality of lifting components, a plurality of moving components, and a buffer protection component;

[0014] The fixed frame consists of a frame and internally intersecting reinforcing ribs; the lifting component is located at the bottom of the frame and is used to adjust the height of the fixed frame; the moving component is located at the bottom corner of the frame.

[0015] The buffer protection component is circumferentially disposed on the inner side of the fixed frame and can be detachably connected to the rescue air cushion.

[0016] Optionally, the top corner of the fixed frame extends upward to form a protective edge; the reinforcing ribs are arranged in a star-shaped pattern.

[0017] Optionally, the lifting component includes a base plate, a hydraulic scissor lift assembly, and a top plate;

[0018] The base plate is connected in sequence to the hydraulic scissor lift assembly and the top plate, and one side of the top plate is connected to the bottom of the frame.

[0019] Optionally, the hydraulic scissor lift assembly includes two pairs of scissor arms, a horizontal shaft, and a hydraulic cylinder. The two ends of the scissor arms are respectively hinged to the base plate and the top plate. The horizontal shaft is disposed between the scissor arms, and the hydraulic cylinder is connected to the horizontal shaft.

[0020] Optionally, the moving component is a caster wheel with a locking mechanism, located at the bottom corner of the frame.

[0021] Optionally, a retaining ring is also provided on the outer side of the frame.

[0022] Optionally, the buffer protection component includes a first buffer pad and a second buffer pad, wherein the first buffer pad is disposed on top of the reinforcing rib, and the second buffer pad is disposed along the inner side of the edge protector.

[0023] Optionally, the fixing frame is made of aluminum alloy or engineering plastic.

[0024] The beneficial effects of this application include, but are not limited to:

[0025] 1. The rescue air cushion support and fixing device according to this application, through the design of cross-shaped reinforcing ribs and the limitation of frame material, makes the overall structure lightweight and has high strength and rigidity, significantly improving the bending and torsional rigidity of the frame and isolating ground debris.

[0026] 2. The rescue air cushion support and fixing device according to this application, through the hydraulic scissor-type lifting component with four independent height adjustment, ensures that the air cushion bearing surface is horizontal, ensures that the pressure inside the air cushion chamber is evenly distributed, avoids excessive force on one side causing "bounce" or cushioning failure, and improves rescue safety.

[0027] 3. The rescue air cushion support and fixing device according to this application has a caster wheel assembly with a locking mechanism that allows rescuers to quickly move the device to the target position and then complete the precise positioning by stepping on the brake, without lifting or dragging, which significantly improves the deployment speed; when used in conjunction with the ground anchor fixing ring and the anchor rope, the device is further fixed in the event of strong winds or trampling by people, ensuring that the position of the air cushion does not shift and saving rescue time.

[0028] 4. According to the rescue air cushion support and fixing device of this application, the dual-zone composite buffer protection component can isolate the reinforcing rib from direct contact with the air cushion to prevent scratches or crushing; the upward-extending guard edge of the frame provides lateral support and positioning when falling sideways or at an angle to prevent the air cushion edge from being squeezed out or slipping sideways. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0030] Figure 1 This is a three-dimensional structural diagram of the support and fixing device for the rescue air cushion involved in Embodiment 1 of this application;

[0031] Figure 2 This is a front view structural diagram of the lifting component involved in Embodiment 1 of this application.

[0032] Explanation of symbols in the diagram:

[0033] 1. Frame, 2. Reinforcing rib, 3. Edge guard, 4. Base plate, 5. Top plate, 6. Scissor arm, 7. Horizontal shaft, 8. Hydraulic cylinder, 9. Casters, 10. Fixing ring, 11. First buffer pad, 12. Second buffer pad; 13. Lifting components. Detailed Implementation

[0034] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this application; however, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0035] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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 on this application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0038] Example 1

[0039] refer to Figure 1 The embodiments of this application disclose a support and fixing device for a rescue air cushion, including a fixed frame, a plurality of lifting components 13, a plurality of moving components and a buffer protection component.

[0040] The fixed frame consists of a frame 1 and internally intersecting reinforcing ribs 2. The frame 1 has a rectangular structure, and its length, width, and height can be customized according to actual needs; this application does not impose specific limitations. The frame 1 is preferably made of aluminum alloy, using 6061-T6 aluminum alloy extruded profiles, which have high strength and light weight. The internally intersecting reinforcing ribs 2 are arranged in a star-shaped pattern, extending from the four corners of the frame 1 towards the center and converging at the center to form eight radial reinforcing ribs 2. The reinforcing ribs 2 are also made of aluminum alloy and have a square cross-section. The top corners of the fixed frame extend upwards to form a protective edge 3, with a height of not less than 20cm and a right-angle shape, which can effectively prevent the rescue air cushion from shifting during use.

[0041] In one implementation, four lifting components 13 are located at the bottom of the frame 1, at the midpoint of each of the four sides of the bottom of the frame 1. Each lifting component 13 includes a base plate 4, a hydraulic scissor lift assembly, and a top plate 5. The base plate 4 is a square structure made of steel, and its bottom surface may have anti-slip textures to further increase friction with the ground.

[0042] refer to Figure 2The hydraulic scissor lift assembly is mounted above the base plate 4 and includes two pairs of scissor arms 6, a horizontal shaft 7, and a hydraulic cylinder 8. The two pairs of scissor arms 6 are arranged in an X-shape, each pair consisting of two 0.4-meter-long metal arms. The two ends of each scissor arm 6 are hinged to the base plate 4 and the top plate 5, respectively. A pin hole is provided in the middle of each scissor arm 6 to facilitate the insertion or hinge of the horizontal shaft 7. The scissor arms 6 are hinged together via the horizontal shaft 7, forming a stable cross structure. The horizontal shaft 7 is a rigid rotating shaft passing through both pairs of scissor arms 6. Its two ends are hinged to holes on the scissor arms 6 via bushings, allowing the horizontal shaft 7 to act as a fulcrum and drive point during lifting. The piston rod end of the hydraulic cylinder 8 is connected to the middle of the horizontal shaft 7 via a hinge pin, thereby converting the extension and retraction displacement of the hydraulic cylinder 8 into the opening and closing motion of the scissor arms 6, thus achieving height adjustment.

[0043] The hydraulic cylinder 8 is a commercially available small single-rod electric hydraulic cylinder with a built-in electric pump. The stroke of the hydraulic cylinder 8 can be adjusted according to actual needs, and the adjustment height needs to be adapted to the size of the frame. In this embodiment, the hydraulic cylinder 8 can adjust the height of the lifting component 13 between 0.2 meters and 0.5 meters. The top plate 5 is a square structure with a side length of 0.3 meters and a thickness of 0.02 meters. It is made of steel, and one side of the top plate 5 is connected to the bottom of the frame 1 by bolts.

[0044] Furthermore, the moving component is a caster wheel 9 with a locking mechanism. Commercially available standard products are acceptable. Four casters are located at the four corners of the bottom of the frame 1. In this embodiment, the caster wheel 9 has a diameter of 0.2 meters and a load-bearing capacity of 200 kg each. The base of the caster wheel 9 is fixedly connected to the bottom of the frame 1 with bolts. The wheel can rotate 360 ​​degrees, facilitating the movement and steering of the device. The locking mechanism adopts a conventional pedal design; pressing the pedal locks the wheel, preventing movement during use. The pedal of the locking mechanism is made of metal, and the surface can be textured with anti-slip patterns.

[0045] In one implementation, the cushioning protection component is circumferentially positioned inside the fixed frame and is detachably connected to the rescue air cushion. The cushioning protection component includes a first cushioning pad 11 and a second cushioning pad 12. The first cushioning pad 11 is located on top of the reinforcing rib 2, is strip-shaped, has the same length as the reinforcing rib 2, and is made of highly elastic EVA foam material, with an outer layer that can be covered with waterproof fabric. The second cushioning pad 12 is positioned along the inner side of the edge protector 3, encircling the entire inner side of the edge protector 3, and is made of thermoplastic elastomer (TPE) soft strip. The cushioning protection component is connected to the fixed frame via Velcro, facilitating disassembly and replacement. Simultaneously, the rescue air cushion is also fixed to the entire frame via Velcro.

[0046] Furthermore, four fixing rings 10 are provided on the outer side of the frame 1, evenly distributed on the four sides of the frame 1, one on each side. The fixing rings 10 are made of stainless steel, with an inner diameter of 0.05 meters and an outer diameter of 0.07 meters. The fixing rings 10 are connected to the frame 1 by bolts. In strong winds, they can be used to connect ropes or other fixing devices to enhance the stability of the entire support and fixing device.

[0047] The method of using the rescue air cushion support and fixing device in this embodiment is as follows: First, move the device to the desired location and press the locking mechanism of the universal wheel 9 to fix the device in position; then, adjust the height of the lifting component 13 by operating the hydraulic scissor-type assembly according to the ground conditions to make the fixing frame reach a suitable height; next, place the rescue air cushion on the fixing frame, and after the rescue air cushion is partially inflated, place it inside the frame so that the air cushion contacts the cushioning protection component, and fix it with Velcro to complete the air cushion inflation; finally, connect the rope through the fixing ring 10 to further enhance the stability of the entire device. During use, the cushioning protection component can effectively protect the rescue air cushion and prevent the air cushion from being damaged; the edge guard 3 can prevent the air cushion from shifting; the reinforcing rib 2 can enhance the strength of the fixing frame and ensure the stability of the entire device.

[0048] Example 2

[0049] Based on Example 1, the fixing frame in this example is made of engineering plastic, which is lighter and less expensive. Reinforced PA66-GF30 engineering plastic can be used. The fixing frame made of engineering plastic is lighter than that made of aluminum alloy, making it easier to handle and move. However, its impact resistance is not as good as that of aluminum alloy, making it more suitable for rescue scenarios requiring frequent movement. Those skilled in the art can choose according to actual needs.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A support fixing device for a rescue air mattress, characterized by It includes a fixed frame, several lifting components (13), several moving components, and a buffer protection component; The fixed frame consists of a frame (1) and internally intersecting reinforcing ribs (2); the lifting component (13) is located at the bottom of the frame (1) and is used to adjust the height of the fixed frame; the moving component is located at the bottom corner of the frame (1); The buffer protection component is circumferentially disposed on the inner side of the fixed frame and can be detachably connected to the rescue air cushion.

2. The support fixing device for a rescue air mattress according to claim 1, characterized in that, The top corner of the fixed frame extends upward to form a protective edge (3); the reinforcing ribs (2) are arranged in a cross shape.

3. The support fixing device for a rescue air mattress according to claim 1, characterized in that, The lifting component (13) includes a base plate (4), a hydraulic scissor lift assembly, and a top plate (5); The base plate (4) is connected in sequence to the hydraulic scissor lift assembly and the top plate (5), and one side of the top plate (5) is connected to the bottom of the frame (1).

4. The support fixing device for a rescue air mattress according to claim 3, characterized in that The hydraulic scissor lift assembly includes two pairs of scissor arms (6), a horizontal shaft (7), and a hydraulic cylinder (8). The two ends of the scissor arms (6) are hinged to the base plate (4) and the top plate (5), respectively. The horizontal shaft (7) is located between the scissor arms (6), and the hydraulic cylinder (8) is connected to the horizontal shaft (7).

5. The support fixing device for a rescue air mattress according to claim 1, characterized in that, The moving part is a universal wheel (9) with a locking mechanism, which is located at the bottom corner of the frame (1).

6. The support and fixing device for a rescue air cushion according to claim 1, characterized in that, A fixing ring (10) is also provided on the outer side of the frame (1).

7. The support fixing device for a rescue air mattress according to claim 2, characterized in that The buffer protection component includes a first buffer pad (11) and a second buffer pad (12). The first buffer pad (11) is disposed on the top of the reinforcing rib (2), and the second buffer pad (12) is disposed along the inner side of the guard edge (3).

8. The support fixing device for a rescue air mattress according to claim 1, characterized in that, The fixed frame is made of aluminum alloy or engineering plastic.

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