Floating auxiliary device

Abstract

The utility model discloses a floating auxiliary device which comprises an inflation structure body which is of a strip-shaped air bag structure. The framework structure comprises a plurality of annular supporting bodies, the annular supporting bodies are arranged in the inflatable structure body in parallel at intervals and connected with the inflatable structure body, the diameter of the annular supporting bodies of the framework is increased and then decreased or decreased and then increased from one end, and the adjacent annular supporting bodies can be nested with one another; wherein an air inlet and exhaust end is arranged on the inflatable structure body or the framework. The air inflation device has the advantages of being rigid and flexible, convenient to stretch, rapid in air inflation, good in air inflation effect, convenient to carry, small in size after being stored and capable of achieving water buoyancy.

Description

Technical Field

[0001] This utility model relates to the technical field of lifesaving and buoyancy auxiliary equipment, and more specifically, to a buoyancy auxiliary device. Background Technology

[0002] A life ring is a water rescue flotation device used to rescue people who have fallen into the water, while a swimming ring is a flotation device for swimmers to practice and learn to swim. One type of life ring is a professionally manufactured device made of plastic or foam injection molding; it is bulky and inconvenient to carry, making it difficult to provide timely rescue in emergencies such as drowning. Existing inflatable life rings and swimming rings are mostly inflated using an air pump or manually. They need to be pre-inflated, which is inconvenient to carry, and in an emergency, if they are not inflated, an air pump is not readily available, and manual inflation is inefficient, delaying the best rescue opportunity.

[0003] In summary, at least one of the following technical problems exists:

[0004] Life rings and swimming rings are inconvenient to carry and take up a lot of space;

[0005] It has a large volume when stored.

[0006] It inflates slowly and requires an inflation tool.

[0007] High tensile resistance. Utility Model Content

[0008] The main purpose of this utility model is to provide a floating auxiliary device to solve at least one of the following technical problems in the prior art: life rings and swimming rings are inconvenient to carry, occupy a large area, have a large volume after storage, have a slow inflation speed requiring inflation tools, and have high tensile resistance.

[0009] To achieve the above objectives, according to one aspect of the present invention, a floating auxiliary device is provided, comprising:

[0010] An inflatable structure body, wherein the inflatable structure body is a strip-shaped airbag structure;

[0011] The skeleton structure includes several annular supports, which are arranged parallel to each other in the inflatable structure body and connected to the inflatable structure body. The diameter of the annular supports of the skeleton first increases and then decreases or first decreases and then increases from one end, and adjacent annular supports can be nested with each other.

[0012] The inflatable structure body or frame is equipped with air intake and exhaust ends.

[0013] Preferably, the air intake and exhaust ends are equipped with air valves.

[0014] Preferably, the air valve is a one-way valve.

[0015] Preferably, the inflatable structure body is a flexible sealing structure.

[0016] Preferably, the inflatable structure body is made of a flexible material, and the frame is made of a rigid material.

[0017] Preferably, the inflatable structure body has a double-conical symmetrical skeleton after it is extended.

[0018] Preferably, the inflatable structure body has tension ends at both ends.

[0019] Preferably, the inflatable structure body is provided with male and female locking buckles at both ends.

[0020] Preferably, when the male and female locking latches are connected, the inflatable structure body has a ring structure.

[0021] Preferably, when the two ends of the skeleton with the telescopic nesting function are pulled or the two ends of the inflatable structure body are pulled, a negative pressure is formed inside the inflatable structure body, and external gas enters the inflatable structure body through the air valve to inflate the inflatable structure body. When the skeleton is shrunken after use or when it is not used, the skeleton is in a nested state.

[0022] The application of the technical solution of this utility model has the following technical effects:

[0023] By fitting or integrally molding a retractable, nesting frame with an inflatable structure body, with air valves installed on either the frame or the inflatable structure body, a negative pressure is created within the inflatable structure body by pulling or extending the ends of the retractable, nesting frame or the inflatable structure body. External gas then enters the inflatable structure body through the air valves, inflating it. This achieves rapid inflation of the inflatable structure body, offering the advantages of convenient portability and rapid inflation.

[0024] By setting the frame as a telescopic nested structure, a small volume can be achieved after storage. Several support bodies are nested in the largest support body, and the several support bodies are arranged in parallel with intervals, which combines rigidity and flexibility. The axial direction is flexible, which is convenient for rapid stretching, while the radial direction is rigid, which supports the air intake space and enables rapid inflation.

[0025] Setting the frame to a conical symmetrical structure improves inflation and makes it easier to connect the two ends to form a ring structure after inflation. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0027] Figure 1 A schematic diagram of the telescopic nested skeleton of the floating auxiliary device according to the present invention is shown;

[0028] Figure 2 It shows Figure 1 A view of the skeleton of the floating auxiliary device after it has been contracted and nested.

[0029] Figure 3 It shows Figure 1 A view of the non-completely closed annular skeleton of the floating auxiliary device in the image;

[0030] Figure 4 It shows Figure 1 A C-shaped structural view of the frame of the floating auxiliary device in the middle;

[0031] Figure 5 A perspective view of the flotation aid device is shown;

[0032] Figure 6 It shows Figure 5 Front view of the floating auxiliary device in the middle;

[0033] Figure 7 It shows Figure 5 Left view of the floating auxiliary device in the middle;

[0034] Figure 8 It shows Figure 5 A top view of the floating auxiliary device in the middle;

[0035] Figure 9 It shows Figure 5 A bottom view of the floating auxiliary device in the middle;

[0036] Figure 10 It shows Figure 5 Right view of the floating auxiliary device in the middle;

[0037] Figure 11 It shows Figure 5 A view of the spiral structure of the floating auxiliary device skeleton in the middle;

[0038] Figure 12 A view of the integral or spliced ​​structure of the floating auxiliary device is shown.

[0039] The above figures include the following reference numerals:

[0040] 1. Inflatable structure body; 2. Air valve; 3. Frame; 4. Tension end; 5. Closed ring support; 6. Partially closed ring support; 7. Spiral structure. Detailed Implementation

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] like Figures 1 to 12 As shown, this utility model embodiment provides a floating auxiliary device, including an inflatable structure body, which is a strip-shaped airbag structure; a frame 3, which includes several annular supports, which are spaced apart and parallel to each other in the inflatable structure body and connected to it. The diameter of the annular supports of the frame 3 increases and then decreases or decreases and then increases from one end, and adjacent annular supports can be nested together; wherein, the inflatable structure body or the frame 3 is provided with an air inlet and an air outlet.

[0043] In this embodiment, an air valve 2 is provided at the air inlet and exhaust ends. The air valve 2 is a one-way valve. The inflatable structure body is a sealed structure. Adjacent annular supports of the frame 3 are flexibly connected through the inflatable structure body. After the inflatable structure body is extended, the frame 3 has a double-cone symmetrical structure. The inflatable structure body has a tension end 4 at both ends. The inflatable structure body has a male and female locking buckle at both ends. When the male and female locking buckles are connected, the inflatable structure body has an annular structure. When the two ends of the frame 3 with the telescopic nesting function are pulled or the two ends of the inflatable structure body are pulled, a negative pressure is formed inside the inflatable structure body. External gas enters the inflatable structure body through the air valve 2 to inflate the inflatable structure body. When it is deflated after use or not used, the frame is in a nested state. Example 1

[0044] In this embodiment, regarding the inflatable structure body 1: the inflatable structure body 1 is a strip-shaped airbag structure; the main function of the inflatable structure body 1 is to form a sealed space, which can be inflated and thus generate buoyancy in water. The inflatable structure body 1 is a strip-shaped structure, wherein the strip-shaped structure is mainly straight, C-shaped, S-shaped, etc., but is not limited to the above specific shapes. As long as it has a certain length-to-width ratio and can achieve a certain stretching distance, it is within the scope of protection of this patent.

[0045] In this embodiment, regarding the inflatable structure body 1: the strip structure of the inflatable structure body 1 is designed to facilitate the formation of a ring, which makes it easy to put on a person. In this embodiment, the shape of the inflatable structure body 1 matches the shape of the frame 3. The inflatable structure body 1 can be set as a single layer or two or more layers. The material of the inflatable structure body 1 is waterproof and airtight, such as plastic film, fabric with plastic coating, etc., which are the materials of life rings or swimming rings, but are not limited to the above materials.

[0046] In this embodiment, regarding the inflatable structure body 1: the inflatable structure body 1 is a flexible inflatable structure, which can be, for example, an airbag, a swimming ring, a life ring, etc. The inflatable structure body 1 has tension ends 4 at both ends.

[0047] In this embodiment, regarding the skeleton 3: the skeleton 3 cooperates with the inflatable structure body 1. The skeleton 3 is a telescopic nested structure or a telescopic superimposed structure. The skeleton 3 is used to support the inflatable structure body 1. The skeleton 3 is set on the inflatable structure body 1 and connected to the inflatable structure body 1. The skeleton 3 is a telescopic nested structure or a telescopic superimposed structure. The skeleton 3, which can realize the telescopic nesting or superimposed function, includes several supports. The several supports are arranged at intervals. When it is a telescopic nested structure, the diameter of the supports gradually decreases or gradually increases from the middle position of the skeleton 3 to the two ends. Adjacent supports can be nested, forming a large ring nested within a small ring structure.

[0048] In this embodiment: Regarding the skeleton 3, the supporting bodies of the skeleton 1 are arranged in parallel at intervals and flexibly connected by the inflatable structure body 1, combining the rigidity of support with the flexibility of tension, and having the effect of no rigid resistance when stretched in the axial direction; the skeleton 3 in this embodiment includes two structural states after shrinkage: one is a telescopic nested structure, and the other is a telescopic superimposed structure. The telescopic nested structure is more advantageous than the telescopic superimposed structure because the telescopic superimposed structure combines the thicknesses of several skeletons 3 and the inflatable structure body 1 after shrinkage, resulting in a larger volume after storage. It is suitable for occasions where volume requirements are not strict, such as vehicle-mounted applications or fixed-position installations. However, it is somewhat insufficient for occasions where it needs to be carried and stored on the person. For occasions where it needs to be carried and stored on the person, the telescopic nested structure is used. In the telescopic nested structure, the skeletons 3 can be nested with each other, allowing the supporting bodies to be stored within the area enclosed by the largest supporting body, without the thickness stacking. The thickness depends on the thickness of the largest support. The deflated inflatable structure 1 fills the gaps between the nested supports, which not only does not take up extra space but is also more aesthetically pleasing. In addition, the largest support can be set as a storage box structure with a handle. All supports are nested in the support of the storage box structure. Adjacent supports are nested in rings, forming a large ring inside a small ring structure. The gaps between the nested rings accommodate the inflatable structure 1. The supports are spaced apart and arranged in parallel to ensure a small axial thickness after nesting and to ensure both flexibility and rigidity. This maximizes the flexibility in the axial direction, making it easy to stretch without resistance and quickly expand to form negative pressure. At the same time, it ensures radial rigidity to support the internal space of the inflatable structure 1 and ensures smooth air intake. Through the flexible and rigid skeleton structure 3, rapid stretching and maximum air intake space are achieved, ensuring the inflation effect.

[0049] In this embodiment, regarding the skeleton 3, the skeleton 3 includes several closed ring supports 5 or partially closed ring supports 6, wherein adjacent closed ring supports 5 or partially closed ring supports 6 can be nested or superimposed on each other. The supports of the skeleton 3 can be closed structures, partially closed structures, or approximately ring structures, all of which are within the scope of protection of this patent. They are not limited to regular rings. As long as they can be nested with each other, with larger ones nested inside smaller ones, they are within the scope of protection of this patent.

[0050] In this embodiment, regarding the skeleton 3, the support body is in the form of a closed or partially closed circle, ellipse, rectangle, trapezoid, or triangle. However, it is not limited to the above shapes, and the support body includes both fully closed and partially closed cases. Any shape that can achieve nesting or stacking functions can be listed as the shape described in this patent. Adjacent support bodies are flexibly connected and fixed by the inflatable structure body 1.

[0051] In this embodiment, regarding the skeleton 3, the material of the support can be plastic, wood, metal, or other materials with supporting properties, and is not limited to the above materials.

[0052] In this embodiment, regarding the skeleton 3, the skeleton can be set as a symmetrical structure, that is, the diameter of the support body at the center of the skeleton 3 is the largest or the smallest. When the diameter of the middle support body is the largest, the diameter of the support bodies gradually decreases from the middle to both ends; when the diameter of the middle support body is the smallest, the diameter of the support bodies gradually increases from the middle to both ends.

[0053] In this embodiment, regarding the skeleton 3, the optimal skeleton 3 has a double-cone symmetrical structure. The tops or bottoms of the two cones in the double-cone symmetrical structure are opposite each other. As for the size of the cone half-angle, it is based on the ability to achieve nesting of adjacent supports. The cone shape described in this patent is a quasi-cone structure, and the cone tip can be pointed or non-pointed. Non-pointed shapes include planes, arc surfaces, or inclined surfaces, such as a slender frustum structure. The double-cone structure not only ensures a better nesting effect but also a better inflation effect. It is easier to inflate than a columnar shape and ensures the realization of nesting. Using a columnar shape can achieve a stacked structure.

[0054] In this embodiment, regarding the skeleton 3, a support body with approximately equal diameter can also be used. Support bodies with approximately equal diameter can achieve the function of stacking, which is used to set up a telescopic stacking structure. This is suitable for occasions where the requirements for the storage volume and aesthetics are low. The storage effect and aesthetics of this structure are not as good as the telescopic nesting structure. Although this structure has some shortcomings, it can be applied to occasions where the requirements for storage volume are low. This structure is also included in the protection scope of this patent.

[0055] In this embodiment, regarding the skeleton 3, the skeleton 3 can be disposed on the inner surface, in the interlayer, or on the outer surface of the inflatable structure body 1. That is, the skeleton 3 can be disposed on the inner surface of the inflatable structure body 1 and fixedly connected to the inner surface of the inflatable structure; when the inflatable structure body 1 is double-layered, the skeleton 3 can be disposed in the interlayer; the skeleton 3 can also be disposed on the outer surface of the inflatable structure body 1; the connection method between the skeleton 3 and the inflatable structure body 1 can be adhesive connection, snap-fit ​​connection, thermal bonding connection, etc., and is not limited to the above connection methods.

[0056] In this embodiment, regarding air intake and exhaust, an air intake and exhaust end can be provided on the inflatable structure body 1 or the frame 3, and an air valve 2 is provided at the air intake and exhaust end. The air valve 2 is a one-way valve. The air valve 2 is used to inflate the inflatable structure body 1. The air valve 2 is provided on the frame 3 or the inflatable structure body 1. The air valve 2 can be a one-way valve or a valve 2 with a similar one-way valve function. It is not limited to a one-way valve. A manually operated inflation / exhaust valve 2 can also be used. The air intake and exhaust end can also be without an air valve 2. It is necessary to manually and quickly close the air intake and exhaust end. This is also within the scope of protection of this patent, but the effect is not as good as using an air valve 2.

[0057] In this embodiment, regarding the working principle, when the two ends of the skeleton 3 with telescopic nesting or telescopic superposition functions are pulled, or when the two ends of the inflatable structure body 1 are pulled, a negative pressure is formed inside the inflatable structure body 1. External gas enters the inflatable structure body 1 through the air intake and exhaust ends, inflating the inflatable structure body 1. This enables the inflatable structure body 1 to inflate when the skeleton 3 is pulled. The inflatable structure body 1 flexibly connects adjacent skeletons 3, combining rigidity and flexibility. It is almost completely flexible in the axial direction and rigidly supported in the radial direction. The radial direction supports the air intake space, while the axial direction ensures stretchability and flexibility, thereby achieving the best air intake effect.

[0058] In this embodiment, a locking structure is also included. The locking structure is used to connect the two ends of the inflatable structure body 1. The locking structure can be a male and female plug-in buckle, with the female buckle and male buckle respectively set at the two ends of the inflatable structure body 1. However, it is not limited to a male plug-in buckle. A rope or other structure that can connect and fix the two ends of the inflatable structure body 1 can also be used. As long as the two ends of the buoyancy device can be connected, it is within the scope of protection of this patent.

[0059] In this embodiment, the supports at both ends of the frame 3 are provided with snap fasteners or magnets that attract each other. When the frame 3 is retracted, they snap together, which can achieve a fixed shape after storage and make it easy to carry. The specific fixing structure can adopt existing technology. The main purpose is to fix the buoyancy device in a retracted state. Example 2

[0060] Based on Embodiment 1, the skeleton 3 is configured as a spiral structure 7. In this embodiment, the skeleton 3 is a spiral structure 7, which can be extended and nested or extended and stacked. The spiral diameter of the spiral structure 7 gradually decreases or gradually increases from the middle position of the skeleton 3 to both ends. The positions with the largest or smallest diameter are near the middle position or in the center, all of which are within the protection scope of this patent. That is, it is a long strip-shaped rugby ball or C-shaped structure. In this embodiment, the skeleton 3 can be integrally formed or it can be a spliced ​​structure in the form of a tower-shaped spring structure. The splicing method can be that the bottom of the tower-shaped spring structure is spliced ​​together or the top of the tower-shaped spring structure is spliced ​​together.

[0061] In this embodiment, regarding the skeleton of the spiral structure, when the spiral structure 7 is used, the skeleton 3 is made of a material with supporting and elastic properties, such as plastic or metal that can achieve the function of stretching.

[0062] In this embodiment, regarding the skeleton of the spiral structure, when the spiral structure 7 is made of a material with low elasticity, the inflation of the inflatable structure body 1 is achieved by stretching. Compared with the structure of embodiment 1, this structure has a certain rigidity in the axial direction because the axial spiral structure 7 is continuous and non-interval. Its tensile flexibility is not as good as that of embodiment 1, but it can be applied to occasions with a large number of strong people and is also within the protection scope of this patent.

[0063] In this embodiment, regarding the skeleton of the spiral structure, there is an optimal solution for the spiral structure 7: that is, the spiral structure 7 is made of a material with high elasticity and has spring properties. When a material with high elasticity is used, the spiral structure 7 can be stored in a storage bag when not in use. As long as it is taken out, the inflatable structure body 1 will quickly and automatically extend under the action of the elasticity of the spiral structure 7, thereby achieving rapid inflation. This has a good effect even for people with insufficient strength or insufficient arm extension distance. In addition, the inflation efficiency is higher.

[0064] In this embodiment, regarding the skeleton of the spiral structure, the spiral structure 7 can be set as a telescopic nested structure, and the largest support can be set as a storage box, which ensures the effect of minimizing storage volume while also having the effect of rapid inflation.

[0065] In this embodiment, regarding the spiral structure frame, if snap fasteners or magnets are provided at both ends of the frame 3, elastic and rapid inflation can be achieved simply by pulling open the snap fasteners or magnets.

[0066] In this embodiment, regarding the skeleton of the spiral structure, the spiral structure 7 can also be set as a telescopic stacking structure. The telescopic stacking structure will have a larger volume after being stored, making it inconvenient to carry around. It is suitable for occasions where the storage volume requirement is not strict, such as vehicle-mounted or fixed-location installation. Example 3

[0067] Based on Embodiments 1 and 2, the inflatable structure body 1 and the frame 3 are integrally molded or spliced ​​together to form a sealed structure. One type of structure is integral molding, where rigid support structures resembling ribs are machined onto the inflatable structure body 1 at corresponding positions of the frame 3 during processing. The structure is arranged in a regular pattern of parallel, spaced-apart support structures or a spiral structure 7. Another structural form is splicing, where the inflatable structure body 1 is no longer an integrally molded structure but is composed of several pieces spliced ​​together. The seams between these pieces form the frame 3 structure, which adopts the frame 3 structure form of Embodiment 1 or Embodiment 2. Example 4

[0068] The assembly method of this patent includes:

[0069] The frame 3, which has the function of telescopic nesting or telescopic stacking, is combined with the inflatable structure body 1, or integrally formed or spliced, wherein the frame 3 or the inflatable structure body 1 is provided with an air valve 2.

[0070] The locking structure is set at both ends of the frame 3 or the inflatable structure body 1.

[0071] The frame 3 can be set inside the inflatable structure body 1 or outside the inflatable structure body 1, or when the inflatable structure body 1 has a sandwich, it can be set in the sandwich, or the inflatable structure body 1 sheet structure can be spliced ​​with the frame 3, and the frame 3 can be set at the seam of the sheet.

[0072] Alternatively, the inflatable structure body 1 can be integrally molded during the manufacturing process to form a matching skeleton 3-rib structure.

[0073] The assembly described in this embodiment is not limited to assembly; it can be integrated through a processing technology. Example 5

[0074] The method of using this patent includes:

[0075] By pulling and extending both ends of the skeleton 3, which has the function of telescopic nesting or telescopic superposition, or by pulling and extending both ends of the inflatable structure body 1, a negative pressure is formed inside the inflatable structure body 1, and external gas enters the inflatable structure body 1 through the air valve 2 to inflate the inflatable structure body 1;

[0076] or,

[0077] The inflatable structure body 1 is elastically supported by a spiral structure 7 frame 3, creating a negative pressure inside the inflatable structure body 1. External gas enters the inflatable structure body 1 through the air valve 2, inflating it. When removed from the storage bag, the compressed spiral structure frame automatically extends under the elastic force, thereby causing the inflatable structure body to extend and automatically inflate. This structure and utility model concept eliminates the need for further stretching, making it particularly suitable for people with limited strength or short arms. Alternatively, the locking pieces at both ends of the spiral structure frame can be pulled to release the lock and achieve elastic support for inflation.

[0078] A ring structure is formed by connecting the two ends of a long strip-shaped water buoyancy device.

[0079] A ring-shaped buoyancy device is fitted onto a person's body.

[0080] Alternatively, it can be used as a long strip, connected to one end of the inflatable structure body 1 via a traction rope, and then connected to the human body.

[0081] Working principle:

[0082] When the user pulls both ends of the buoyancy device, the frame 3 provides support, creating a negative pressure inside the buoyancy device. Air enters the buoyancy device through the air intake and exhaust ends, achieving rapid inflation.

[0083] Alternatively, when using a frame 3 with a spiral structure 7 made of a material with greater elasticity, the buckles that are fastened together at both ends of the frame 3 can be removed from the storage bag or pulled open. Under the elastic action of the spiral structure 7, the frame 3 will automatically pop open and support the inflatable structure body 1, achieving rapid and automatic inflation.

[0084] After the user wraps the buoyancy device around their waist and abdomen and secures it with the locking mechanism, the support structure near the body will shorten. As the internal volume of the buoyancy device decreases, the air inside will be compressed, thus increasing the air pressure. If the internal air pressure is still insufficient, the user can also use their mouth to blow air through the one-way air inlet valve 2 to make up for it.

[0085] The retractable nested structure of the skeleton 3 enables nested storage, achieving a smaller storage volume and making it easy to carry.

[0086] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0087] The inflatable structure body 1 is formed by fitting or integrally molding a frame 3 with a telescopic nesting or stacking function, wherein an air valve 2 is provided on the frame 3 or the inflatable structure body 1. By pulling and extending both ends of the frame 3 with telescopic nesting or stacking function, or by pulling and extending both ends of the inflatable structure body 1, a negative pressure is created inside the inflatable structure body 1. External gas enters the inflatable structure body 1 through the air valve 2, inflating the inflatable structure body 1. This achieves rapid inflation of the inflatable structure body 1, providing the technical advantages of convenient portability and rapid inflation.

[0088] By setting the skeleton 3 as a telescopic nested structure, a smaller volume can be achieved after storage, with several supports nested within the largest support.

[0089] By setting the frame 3 as a telescopic nested spiral structure 7, not only is a smaller volume achieved after storage, but it also allows for easy removal from the storage bag or unhooking of the two ends. The spiral structure 7's elasticity allows it to automatically spring open and support the inflatable structure body 1, enabling rapid and automatic inflation. Setting the frame 3 as a conical symmetrical structure improves inflation performance and facilitates connecting the two ends to form a loop structure after inflation.

[0090] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A floating auxiliary device, characterized in that, include: An inflatable structure body, wherein the inflatable structure body is a strip-shaped airbag structure; The skeleton structure includes several annular supports, which are arranged parallel to each other in the inflatable structure body and connected to the inflatable structure body. The diameter of the annular supports of the skeleton first increases and then decreases or first decreases and then increases from one end, and adjacent annular supports can be nested with each other. The inflatable structure body or frame is equipped with air intake and exhaust ends.

2. The floating auxiliary device as described in claim 1, characterized in that, The air intake and exhaust ends are equipped with air valves.

3. The floating auxiliary device as described in claim 2, characterized in that, The air valve is a one-way valve.

4. The floating auxiliary device as described in claim 1, characterized in that, The inflatable structure body is a flexible sealing structure.

5. The floating auxiliary device as described in claim 1, characterized in that, The inflatable structure body is made of flexible material, while the frame is made of rigid material.

6. The floating auxiliary device as described in claim 1, characterized in that, When the inflatable structure body is extended, the skeleton has a double-conical symmetrical structure.

7. The floating auxiliary device as described in claim 1, characterized in that, The inflatable structure body has tension ends at both ends.

8. The floating auxiliary device as described in claim 1, characterized in that, The inflatable structure body is equipped with male and female locking buckles at both ends.

9. The floating auxiliary device as described in claim 1, characterized in that, When the male and female locking latches are connected, the inflatable structure body has a ring structure.

10. The floating auxiliary device as described in claim 1, characterized in that, When the two ends of the retractable and nested skeleton or the two ends of the inflatable structure body are pulled and extended, a negative pressure is formed inside the inflatable structure body. External gas enters the inflatable structure body through the air valve and inflates the inflatable structure body. When the skeleton is shrunken after use or when it is not used, the skeleton is in a nested state.

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