Diving suit with controlled buoyancy structure

Abstract

The present application relates to diving equipment technical field, specifically disclose a kind of diving suit with control floating structure, including diving suit main body and gas cylinder, the upper portion and lower portion of diving suit main body are respectively fixed with first floating structure and second floating structure by connecting belt;The first floating structure includes outer ring air bag assembly and inner ring air bag assembly arranged in each other;The outer ring air bag assembly includes several independent air bags, and the inner ring air bag assembly includes annular air bag;The second floating structure includes multiple strip air bags. By independently setting first floating structure and second floating structure in chest and leg, when needing to quickly float, then both can be simultaneously enabled, maximum buoyancy is obtained, and the control of diver to self buoyancy and posture is greatly improved. The exhaust valve arranged in second floating structure can simultaneously generate fast rising large air bubble and slowly diffusing micro air bubble, and very unique and easily identifiable visual mark is formed on water surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of diving equipment, in particular to a diving suit with a control floating structure. BACKGROUND

[0002] In the underwater environment, divers need to accurately control their buoyancy to achieve neutral buoyancy hovering, stable diving and safe floating. In order to achieve this goal, buoyancy control devices have become a standard configuration of modern diving equipment. The traditional buoyancy control device is usually integrated in the form of a vest or jacket on the diving suit, and its core structure is one or more interconnected airbags. Divers inject or exhaust high-pressure air from the air cylinder into or out of the airbag through the inflation / exhaust valve, thereby changing their displacement volume and achieving buoyancy adjustment. However, the buoyancy control device in the prior art still has many defects and deficiencies to be solved.

[0003] Firstly, the airbag of the traditional BCD is usually a whole, and the buoyancy is evenly distributed or concentrated in the back after inflation. This causes the diver's body to easily assume an uncontrolled horizontal or foot-first posture when floating, which is not only not conducive to the diver's observation of the environment above, but also extremely dangerous when performing decompression stops, because it is difficult to maintain a stable depth, increasing the risk of decompression sickness. Although some designs attempt to improve the posture by adjusting the airbag position, the effect is limited, and targeted, regional buoyancy fine-tuning cannot be achieved.

[0004] Secondly, most BCDs rely on a single airbag or a completely interconnected airbag group. Once the airbag is punctured by a sharp object (such as a sunken ship wreckage, coral, fishing net) underwater, the gas will quickly leak, resulting in complete loss of buoyancy. Although divers will carry a spare buoyancy device (such as a diving signal tube), these devices need to be manually deployed, have a long reaction time, and cannot replace the continuous adjustment function of the main BCD.

[0005] Thirdly, divers need to signal their position to the surface support boat or companions underwater, especially when preparing to float or in emergency situations. The commonly used methods are to use diving whistles, surface signal markers (image pulls) or by releasing bubbles. Although releasing bubbles is simple, the bubble stream produced is single, dispersed and easily affected by water flow, making it difficult for surface personnel to accurately and quickly locate. Deploying devices such as image pulls requires divers to stop their current activities and perform additional operations, which may miss the best opportunity in an emergency situation.

[0006] Finally, in the un-inflated state, the airbag material of the traditional BCD is often thick and heavy, and cannot completely conform to the body, generating additional water flow resistance when the diver swims, increasing energy consumption and affecting the comfort and endurance of the dive.

[0007] It can be seen that the diving suit buoyancy control device in the prior art has obvious shortcomings in the fineness of buoyancy control, the stability of the floating posture, the safety redundancy of the system, and the integrated warning function. Therefore, there is an urgent need for a new type of diving suit that can overcome the above-mentioned defects. SUMMARY

[0008] In view of the shortcomings of the prior art, the present application provides a diving suit with a control floating structure, which solves the problem that the existing diving suit floating structure is difficult to maintain a stable depth and generates additional water flow resistance when the diver moves, increasing the physical energy consumption.

[0009] To achieve the above-mentioned purpose, the present application is implemented by the following technical solutions: a diving suit with a control floating structure, comprising a diving suit main body and a gas cylinder, the upper and lower parts of the diving suit main body are respectively fixed with a first floating structure and a second floating structure through a connecting belt; the first floating structure comprises an outer ring gas bag assembly and an inner ring gas bag assembly arranged in each other; the outer ring gas bag assembly comprises a plurality of independent gas bags, and the inner ring gas bag assembly comprises a ring-shaped gas bag; the second floating structure comprises a plurality of strip-shaped gas bags, and each strip-shaped gas bag is provided with an exhaust valve;

[0010] The diving suit with a control floating structure further comprises a gas path assembly, and the gas cylinder is connected in communication with the independent gas bags, the ring-shaped gas bag and the strip-shaped gas bags through the gas path assembly.

[0011] Preferably, the outer ring gas bag assembly further comprises a first connecting pad fixed with the connecting belt, each independent gas bag is arranged on the first connecting pad in a spaced manner, and a wear-resistant pad is arranged between each independent gas bag and the first connecting pad.

[0012] Preferably, the first connecting pad is provided with a plurality of folding portions in the circumferential direction, a placing portion is formed between two adjacent folding portions, and the independent gas bag is arranged in the placing portion.

[0013] Preferably, the inner ring gas bag assembly further comprises a second connecting pad fixed with the connecting belt, and the ring-shaped gas bag is arranged on the second connecting pad.

[0014] Preferably, the gas path assembly comprises a main gas pipe, a pressure reducing valve, a gas guide pipe, a flow divider, a first branch pipe, a second branch pipe and a third branch pipe; the main gas pipe is connected with the gas outlet end of the gas cylinder; the pressure reducing valve is arranged on the main gas pipe; the gas guide pipe is connected in communication with the pressure reducing valve; the flow divider is connected to the gas guide pipe; the first branch pipe is connected in communication with the flow divider and the independent gas bag at two ends respectively; the second branch pipe is connected in communication with the flow divider and the ring-shaped gas bag at two ends respectively; and the third branch pipe is connected in communication with the flow divider and the strip-shaped gas bag at two ends respectively.

[0015] Preferably, the first branch pipe is connected with a ring-shaped pipe, and each independent gas bag is connected in communication with the ring-shaped pipe.

[0016] Preferably, the third branch pipe is provided with a one-way valve.

[0017] Preferably, the exhaust valve comprises an outer cylinder, a cover, an inner cylinder, a lower support ring, an upper support ring, a top disc and an inner support ring; the outer cylinder is fixed with the strip-shaped air bag; the cover is detachably connected on the outer cylinder; the inner cylinder is arranged in the inner cavity of the outer cylinder, and an outer clamping cavity is formed between the inner cylinder and the outer cylinder, and an inner cavity is formed in the inner cavity of the inner cylinder; the lower support ring is arranged at the bottom of the outer clamping cavity; the upper support ring is arranged at the top of the outer clamping cavity, and a first air hole is opened on the upper support ring; the top disc is arranged at the top of the inner cavity, and a second air hole is opened on the top disc; and the inner support ring is arranged at the bottom of the inner cavity, and a fan blade is rotatably arranged on the inner support ring.

[0018] Preferably, the inner cylinder is a conical barrel, so that the gap of the outer clamping cavity gradually increases from bottom to top.

[0019] Preferably, the diameter of the first air hole is smaller than that of the second air hole.

[0020] The beneficial effects of the present application are as follows:

[0021] 1. By using the diving suit with control floating structure provided by the present application, compared with the prior art, the first floating structure and the second floating structure are independently arranged on the chest and the legs, so that the diver can flexibly select to use the chest air bag alone, use the leg air bag alone or use both of them in combination according to different scene requirements; the traditional BCD "one-size-fits-all" buoyancy adjustment mode is changed; when the pressure relief is performed, only the chest air bag can be used, and the floating center thereof located on the upper part of the body naturally forms a safe upright posture with the head upward and the feet downward, which is convenient for stabilizing the depth; when rapid floating is required, both of them can be used at the same time to obtain the maximum buoyancy, which greatly improves the control of the diver on the buoyancy and the posture.

[0022] 2. The outer ring air bag assembly located on the chest is composed of multiple independent air bags, forming a "distributed" buoyancy system; even if an independent air bag is accidentally damaged, other air bags can still work normally, avoiding the disastrous consequences of the failure of the entire buoyancy system due to a single point failure; at the same time, the outer ring air bag assembly itself constitutes a physical protection for the inner ring air bag assembly, and the wear-resistant pad below can effectively resist the initial impact of sharp objects, providing a second layer of safety protection for the inner ring air bag, and significantly improving the reliability of the diving operation.

[0023] 3. The exhaust valve of the second floating structure is arranged to produce fast rising large bubbles and slow diffusing micro-bubbles through double-channel shunting, cone-shaped cylinder variable speed, internal fan acceleration and different aperture outlet design. The composite bubble flow of "fast and slow combination, large and small alternation" forms a very unique and easily identifiable visual mark on the water surface. Compared with the traditional single bubble, it is more eye-catching and lasts longer, allowing the water surface partner to quickly and accurately determine the precise position and floating intention of the diver, greatly improving the safety of team cooperation.

[0024] 4. In the conventional un-inflated state, the inner and outer ring airbag assemblies can be downwardly aligned and closely attached to the main body of the diving suit, avoiding unnecessary resistance caused by the traditional BCD loose part of the water pocket, making the diver swim more labor-saving and efficient. At the same time, the second floating structure is arranged on the front side of the leg, which does not hinder the bending and kicking action of the diver's leg, ensuring the flexibility and comfort of underwater activities. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The figure is a schematic diagram of the main body structure of the diving suit of the present application;

[0026] Figure 2 The figure is a schematic diagram of the first floating structure of the present application;

[0027] Figure 3 The figure is a schematic diagram of the first floating structure and the main body of the diving suit of the present application;

[0028] Figure 4 The figure is a schematic diagram of the first floating structure of the present application after inflation;

[0029] Figure 5 The figure is a schematic diagram of the connection structure of the gas cylinder and the independent airbag, the annular airbag and the strip-shaped airbag of the present application;

[0030] Figure 6 The figure is a schematic diagram of the exhaust valve structure of the present application;

[0031] Figure 7 The figure is a schematic diagram of the use of the main body of the diving suit of the present application in the floating state.

[0032] Figure 1, the figure mark explanation: 1, the diving suit main body; 2, the gas cylinder; 3, the first upper floating structure; 31, the outer ring air bag assembly; 311, the first connecting pad; 312, the wear-resistant pad; 313, the independent air bag; 314, the folding part; 32, the inner ring air bag assembly; 321, the second connecting pad; 322, the annular air bag; 4, the second upper floating structure; 5, the connecting belt; 6, the annular pipe; 7, the main gas pipe; 8, the pressure reducing valve; 9, the flow divider; 10, the air guide pipe; 11, the first branch pipe; 12, the second branch pipe; 13, the third branch pipe; 14, the one-way valve; 15, the exhaust valve; 151, the outer cylinder; 152, the cover; 153, the inner cylinder; 154, the outer clamping cavity; 155, the inner cavity; 156, the lower support ring; 157, the upper support ring; 158, the top disc; 159, the fan blade; 1510, the inner support ring; 1511, the first air hole; 1512, the second air hole. DETAILED DESCRIPTION

[0033] In order to better explain the present application, in order to facilitate understanding, the following specific embodiments, combined with the drawings, the technical solutions in the embodiments of the present application are described in detail. The present application discloses a diving suit with control upper floating structure, including diving suit main body and gas cylinder, the upper and lower part of the diving suit main body is fixed with the first upper floating structure and the second upper floating structure through the connecting belt respectively; The first upper floating structure includes outer ring air bag assembly and inner ring air bag assembly arranged in each other; The outer ring air bag assembly includes a plurality of independent air bags, and the inner ring air bag assembly includes an annular air bag; The second upper floating structure includes a plurality of strip-shaped air bags. It also includes a gas circuit assembly, and the gas cylinder is connected with the independent air bag, the annular air bag and the strip-shaped air bag through the gas circuit assembly. By independently setting the first upper floating structure and the second upper floating structure on the chest and the legs, the diver can flexibly choose to use the chest air bag alone, use the leg air bag alone or use both of them according to different scene requirements. When decompression stays, only the chest air bag can be used, and the floating center located at the upper part of the body is used to form a safe upright posture with the head upward and the feet downward, which is convenient for stable depth; When rapid ascent is needed, both of them can be used at the same time to obtain maximum buoyancy, which greatly improves the control of the diver on the buoyancy and posture. The exhaust valve provided in the second upper floating structure can produce large air bubbles for rapid ascent and slow dispersion micro-bubbles at the same time. The composite bubble flow with "fast and slow combination and large and small alternation" forms a very unique and easy-to-identify visual mark on the water surface.

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. As long as the effect of the present application can be achieved, various changes can be made to the implementation scheme.

[0035] Through the personnel in the art, the parts in the case are sequentially connected, and the specific connection and operation sequence should be referred to the working principle, and the detailed connection means is a common technology in the art. The working principle and process are mainly introduced below.

[0036] As Figures 1 to 7 shown, the embodiment of the application provides a diving suit with control floating structure, which comprises a diving suit body 1 and a gas cylinder 2, and the upper part and the lower part of the diving suit body 1 are respectively fixed with a first floating structure 3 and a second floating structure 4 through a connecting belt 5; wherein, when a human body wears the diving suit body 1, the first floating structure 3 is located at the chest position of the human body, and the second floating structure 4 is located at the leg position of the human body; further, the second floating structure is preferably arranged on the front side, so as to facilitate the bending of the legs of the diver; the combination mode of the first floating structure 3 and the second floating structure 4 enables the diver to use the first floating structure 3 alone or use the first floating structure 3 and the second floating structure 4 together, thereby providing the diver with fine floating control capability, for example, when emergency rapid floating is needed, both of them can be used at the same time to obtain maximum floating force; when decompression stay or body posture adjustment is needed, the chest air bag can be used alone to keep the body upright, or the chest air bag can be used in cooperation with the leg air bag to fine tune the horizontal posture, thereby greatly improving the safety and maneuverability of diving; when floating force is needed, it can provide strong support; when it is not needed, it completely fits the body and almost does not affect the normal activities of the diver.

[0037] Referring to Figure 2 shown, the first floating structure 3 in the embodiment comprises an outer ring air bag assembly 31 and an inner ring air bag assembly 32 arranged in each other; in a normal case (i.e. in an uncharged state), the outer ring air bag assembly 31 and the inner ring air bag assembly 32 are vertically downward and fit on the diving suit body 1 of the diver, and in the process of the diver moving underwater, the design of the outer ring air bag assembly 31 and the inner ring air bag assembly 32 fitting the human body can avoid that the slack air bag holds the water flow, thereby reducing the resistance of the water flow, which makes the diver more labor-saving and faster when moving.

[0038] For example, referring to Figure 3 and Figure 4 shown, the outer ring air bag assembly 31 in the embodiment comprises a plurality of independent air bags 313, each independent air bag 313 is provided with a one-way air inlet valve at the air inlet end and an air outlet valve at the tail end; the outer ring air bag assembly 31 further comprises a first connecting pad 311 fixed with the connecting belt 5, each independent air bag 313 is arranged on the first connecting pad 311 at intervals, and a wear-resistant pad 312 is arranged between each independent air bag 313 and the first connecting pad 311, the wear-resistant pad 312 is a thin rubber pad; the modular independent air bag design improves the safety redundancy of the system; even if a certain air bag is accidentally damaged, the remaining air bags can still work normally, thereby avoiding the risk of failure of the entire floating system due to a single point failure.

[0039] Further, referring to Figure 4 As shown, the first connecting pad 311 is circumferentially provided with a plurality of folding portions 314, and a placing portion is formed between two adjacent folding portions 314, and the independent air bag 313 is arranged in the placing portion; when the independent air bag 313 is filled with gas and floats, the folding portions 314 on the first connecting pad 311 are opened, so that the outer ring air bag assembly 31 is annularly arranged around the circumference of the diver's body; the design of the plurality of independent air bags 313 on the outer side can protect the inner ring air bag assembly 32 in actual use, and when any independent air bag 313 is broken by a sharp object in water, the working of other independent air bags 313 will not be affected; and the wear-resistant pad 312 arranged can block the sharp object from continuing to impact downward, thereby improving the protection effect of the inner ring air bag assembly 32.

[0040] Exemplarily, referring to Figure 3 and Figure 4 As shown, the inner ring air bag assembly 32 in the embodiment includes an annular air bag 322, further includes a second connecting pad 321 fixed with the connecting belt 5, and the annular air bag 322 is arranged on the second connecting pad 321.

[0041] Referring to Figure 3 As shown, the top of the first connecting pad 311 and the second connecting pad 321 is connected with the diving suit body 1 through the connecting belt 5, so that the bottom of the independent air bag 313 and the annular air bag 322 freely hangs down, and when the diver moves forward in water and the independent air bag 313 and the annular air bag 322 are in an un-inflated state, the independent air bag 313 and the annular air bag 322 can be attached to the diver; when the independent air bag 313 and the annular air bag 322 are inflated, the independent air bag 313 and the annular air bag 322 are annularly floated around the diver, forming a "swimming ring" shape to assist the diver to float up; the double-layered structure forms two layers of buoyancy protection, for example, the outer ring provides dispersed and protected buoyancy, and the inner ring provides concentrated and stable annular buoyancy, and the combination of the two ensures the stability and safety of the floating process.

[0042] Referring to Figure 1 As shown, the second floating structure 4 in the embodiment includes a plurality of strip-shaped air bags, and each strip-shaped air bag is provided with an exhaust valve 15; in one embodiment, the strip-shaped air bags are two, and are arranged on the front side of the thigh of the diving suit body 1; in another embodiment, the strip-shaped air bags are four, and are arranged on the front side of the thigh and the front side of the calf of the diving suit body 1.

[0043] In one embodiment, the diver manually opens the exhaust valve 15 on the independent strip-shaped air bag in the second ascending structure 4 before ascending to the low pressure zone under water, and the gas in the independent strip-shaped air bag is exhausted; at this time, the gas is exhausted in the form of bubbles and ascends to the water surface, the exhaust bubbles form obvious visual marks, reminding the companions on the ship of the diver's ascending point, and indicating the exact position of the diver's upcoming ascending to the water surface support personnel; at the same time, the ascending speed is slowed down due to the exhaust of the gas in the second ascending structure, giving the diver time to adapt to the water pressure; and since the first ascending structure is located at the chest position of the diving suit, the person affected by the buoyancy will be in a standing state with the head upwards and the feet downwards, which is more convenient for the diver's activities.

[0044] In one embodiment, referring to Figure 6 The exhaust valve 15 includes an outer cylinder 151, a cover 152, an inner cylinder 153, a lower support ring 156, an upper support ring 157, a top disc 158, and an inner support ring 1510; in one arrangement, the outer cylinder 151 is fixed with the strip-shaped air bag; the cover 152 is detachably connected to the outer cylinder 151; in one connection manner, the cover 152 is reversibly buckled to the outer cylinder 151.

[0045] The inner cylinder 153 is arranged in the inner cavity of the outer cylinder 151, and the lower support ring 156 is arranged at the bottom of the outer clamping cavity 154; the inner cylinder 153 and the outer cylinder 151 are fixed as a whole; in addition, the outer clamping cavity 154 is formed between the inner cylinder 153 and the outer cylinder 151, and the inner cavity 155 is formed in the inner cylinder 153; when the gas in the strip-shaped air bag is exhausted, the gas flow is divided into the outer clamping cavity 154 and the inner cavity 155 for exhaust.

[0046] It should be noted that the inner cylinder 153 is a conical barrel, so that the gap of the outer clamping cavity 154 gradually increases from bottom to top; when the gas flows out through the outer clamping cavity 154, it flows from a small gap to a large gap, and the flow rate of the gas flow is gradually slowed down; when the gas flows out upward through the inner cavity 155, it flows from a large gap to a small gap, and the flow rate of the gas flow is gradually increased; further, by this design, the gas flowing into the outer clamping cavity 154 and the inner cavity 155 flows out at different rates, so that the bubbles are dispersed on the water surface in batches.

[0047] Further, the inner support ring 1510 is arranged at the bottom of the inner cavity 155, and the fan blade 159 is rotatably arranged on the inner support ring 1510, which can be blown and rotated by the upward flowing gas flow in the inner cavity 155; when the gas flow rate gradually increases upward through the inner cavity 155, the gas drives the fan blade 159 to rotate, and the rotating fan blade 159 further accelerates the flow rate of the gas flow, so that the flow rate of the gas flow in the inner cavity 155 is faster than that of the gas flow in the outer clamping cavity 154.

[0048] Further, the upper support ring 157 is arranged on the top of the outer clamping cavity 154, and the first air hole 1511 is arranged on the upper support ring 157; the top disc 158 is arranged on the top of the inner cavity 155, and the second air hole 1512 is arranged on the top disc 158; the diameter of the first air hole 1511 is smaller than the diameter of the second air hole 1512; when the airflow in the outer clamping cavity 154 flows out, the airflow is divided by the first air hole 1511 to form micro-bubbles; when the airflow in the inner cavity 155 flows out, the airflow is divided by the second air hole 1512 to form macro-bubbles; by adopting the design manner, two kinds of bubbles flow out when the bubbles flow out upward, which are macro-bubbles flowing out quickly and micro-bubbles flowing out slowly, and it is more convenient for the companions on the ship to view and distinguish.

[0049] The diving suit main body 1 further comprises a gas path assembly, and the gas cylinder 2 is connected with the independent air bag 313, the annular air bag 322 and the strip-shaped air bag through the gas path assembly, so that the gas generated by the gas cylinder 2 is divided.

[0050] Referring to Figure 5 , specifically, the gas path assembly in the embodiment comprises a main gas pipe 7, a pressure reducing valve 8, a gas guide pipe 10, a flow divider 9, a first branch pipe 11, a second branch pipe 12 and a third branch pipe 13; the main gas pipe 7 is connected with the gas outlet end of the gas cylinder 2; the pressure reducing valve 8 is arranged on the main gas pipe 7; the gas guide pipe 10 is connected with the pressure reducing valve 8; the flow divider 9 is connected on the gas guide pipe 10; the first branch pipe 11 is connected with the flow divider 9 and the independent air bag 313 at two ends respectively; the first branch pipe 11 is connected with the annular pipe 6, and each independent air bag 313 is connected with the annular pipe 6; the second branch pipe 12 is connected with the flow divider 9 and the annular air bag 322 at two ends respectively; the third branch pipe 13 is connected with the flow divider 9 and the strip-shaped air bag at two ends respectively; the third branch pipe 13 is provided with a one-way valve 14; in the specific implementation, the gas generated by the gas cylinder 2 is transported to the pressure reducing valve 8 through the main gas pipe 7, the gas is reduced by the pressure reducing valve 8 and then enters the flow divider 9 through the gas guide pipe 10, the gas is divided by the flow divider 9 and then is transported into the first branch pipe 11, the second branch pipe 12 and the third branch pipe 13 respectively; the airflow in the first branch pipe 11 enters the annular pipe 6 and then enters each independent air bag 313 through the annular pipe 6; the airflow in the second branch pipe 12 directly enters the annular air bag 322; the airflow in the third branch pipe 13 enters the strip-shaped air bag after passing through the one-way valve 14.

[0051] The above describes the basic principles, main features and advantages of the present application. However, the above only describes specific embodiments of the present application, and the technical features of the present application are not limited thereto. Any other implementation derived by those skilled in the art without departing from the technical solution of the present application should be covered in the patent range of the present application.

[0052] In the description of the application, each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the relevant part can be referred to the method part.

[0053] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A diving suit with a controlled ascent structure, comprising a diving suit body (1) and an air cylinder (2), characterized in that: The upper and lower parts of the main body (1) of the diving suit are respectively fixed with a first buoyancy structure (3) and a second buoyancy structure (4) by connecting straps (5); The first buoyancy structure (3) includes an outer ring airbag assembly (31) and an inner ring airbag assembly (32) stacked on top of each other; the outer ring airbag assembly (31) includes a plurality of independent airbags (313), and the inner ring airbag assembly (32) includes an annular airbag (322). The second buoyancy structure (4) includes multiple strip-shaped airbags, each of which is provided with an exhaust valve (15). The diving suit with controlled buoyancy structure also includes an air circuit assembly, through which the air cylinder (2) is connected to an independent airbag (313), an annular airbag (322) and a strip airbag respectively; The gas path assembly includes: The main air pipe (7) is connected to the outlet end of the gas cylinder (2); A pressure reducing valve (8) is installed on the main gas pipe (7); The air duct (10) is connected to the pressure reducing valve (8); A splitter (9) is connected to the air duct (10); The first branch pipe (11) is connected at both ends to the diverter (9) and the independent airbag (313), respectively; The second branch pipe (12) is connected at both ends to the diverter (9) and the annular airbag (322), respectively; The third branch pipe (13) is connected at both ends to the diverter (9) and the strip-shaped airbag, respectively; The exhaust valve (15) includes: The outer cylinder (151) is fixed to the strip-shaped airbag; The cap (152) is detachably connected to the outer cylinder (151); An inner cylinder (153) is provided in the inner cavity of the outer cylinder (151), an outer clamping cavity (154) is formed between the inner cylinder (153) and the outer cylinder (151), and an inner cavity (155) is formed in the inner cavity of the inner cylinder (153). The lower support ring (156) is located at the bottom of the outer clamping cavity (154); An upper support ring (157) is provided at the top of the outer clamping cavity (154), and a first air hole (1511) is opened on the upper support ring (157). A top plate (158) is located at the top of the inner cavity (155), and a second air hole (1512) is opened on the top plate (158). An inner support ring (1510) is located at the bottom of the inner cavity (155), and a fan blade (159) is rotatably mounted on the inner support ring (1510).

2. A diving suit with a controlled buoyancy structure according to claim 1, characterized in that: The outer ring airbag assembly (31) also includes a first connecting pad (311) fixed to the connecting strap (5), each of the independent airbags (313) is spaced on the first connecting pad (311), and a wear-resistant pad (312) is provided between each of the independent airbags (313) and the first connecting pad (311).

3. A diving suit with a controlled buoyancy structure according to claim 2, characterized in that: The first connecting pad (311) is provided with a plurality of folds (314) in the circumferential direction, and a placement part is formed between two adjacent folds (314), and the independent airbag (313) is disposed in the placement part.

4. A diving suit with a controlled buoyancy structure according to claim 1, characterized in that: The inner ring airbag assembly (32) also includes a second connecting pad (321) fixed to the connecting strap (5), and the annular airbag (322) is disposed on the second connecting pad (321).

5. A diving suit with a controlled buoyancy structure according to claim 3, characterized in that: The first branch pipe (11) is connected to an annular pipe (6), and each independent airbag (313) is connected to the annular pipe (6).

6. A diving suit with a controlled buoyancy structure according to claim 1, characterized in that: A one-way valve (14) is installed on the third branch pipe (13).

7. A diving suit with a controlled buoyancy structure according to claim 1, characterized in that: The inner cylinder (153) is a conical barrel, so that the gap of the outer clamping cavity (154) gradually increases from bottom to top.

8. A diving suit with a controlled buoyancy structure according to claim 1, characterized in that: The diameter of the first pore (1511) is smaller than the diameter of the second pore (1512).

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