Liquid buoyancy engine

Abstract

The invention discloses a liquid buoyancy engine which comprises an air bag type folding buoyancy chamber, a floating control ring, a middle lock pin mechanism, a fixed table, a bottom lock pin mechanism, a trigger mechanism, a rotating shaft, a ventilation pipe and a floating control table, the two ends of the air bag type folding buoyancy chamber are connected with the floating control table and the fixed table respectively, and the middle of the air bag type folding buoyancy chamber is connected with the floating control ring; bottom lock pin mechanisms are arranged at the two ends of the fixing table. The number of the air bag type folding buoyancy cabins, the number of the floating control rings, the number of the fixing tables, the number of the bottom lock pin mechanisms and the number of the floating control tables are all two, the two ends of the two fixing tables are connected together through ventilation pipes, ventilation pipelines are arranged in the fixing tables, and the two air bag type folding buoyancy cabins are communicated through the ventilation pipes. The ventilation pipe penetrates through the rotating shaft, and the middle of the ventilation pipe is fixedly connected with the rotating shaft. And a middle lock pin mechanism is arranged on the rotating shaft. Buoyancy potential energy circulation conversion is achieved through air bag folding ventilation, and external energy dependence is reduced; symmetrical air bag layout is matched with a lock pin mechanism to achieve continuous power output, and operation stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and particularly to a liquid buoyancy engine. Background Art

[0002] Buoyancy, as a physical phenomenon commonly existing in nature, its potential energy value is increasingly attracting attention. Using buoyancy for power generation is not only an effective supplement to traditional energy sources, but also an important way to promote energy conservation and emission reduction and achieve sustainable development. However, for many buoyancy generators currently on the market, many devices also face challenges in achieving long-term and stable operation. Therefore, it is particularly important to develop a buoyancy generator with stable operation and long working hours. Summary of the Invention

[0003] For this reason, the present invention provides a liquid buoyancy engine to solve the problems in the prior art.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A liquid buoyancy engine, comprising an airbag type folding floating cabin, a floating control ring, a middle locking pin mechanism, a fixed platform, a bottom locking pin mechanism, a rotating shaft, an air exchange pipe, a floating control platform and a triggering mechanism. The two ends of the airbag type folding floating cabin are respectively connected to the floating control platform and the fixed platform, and the middle part of the airbag type folding floating cabin is connected to the floating control ring; the two ends of the fixed platform are provided with bottom locking pin mechanisms, and the bottom locking pin mechanisms can lock or unlock the floating control platform; the bottom locking pin mechanisms are used in cooperation with the triggering mechanism; the airbag type folding floating cabin, the floating control ring, the fixed platform, the bottom locking pin mechanism and the floating control platform are all provided with two groups, and the two ends of the two groups of fixed platforms are connected together through air exchange pipes. An air ventilation pipe is arranged inside the fixed platform, and the air exchange pipes connect the two airbag type folding floating cabins; the air exchange pipe passes through the rotating shaft, and the middle part of the air exchange pipe is fixedly connected to the rotating shaft; a middle locking pin mechanism is arranged on the rotating shaft, and the middle locking pin mechanism can lock or unlock the floating control platform.

[0006] Further: An air outlet is arranged on one side of the fixed platform close to the airbag type folding floating cabin.

[0007] Further: The bottom locking pin mechanism includes a first locking pin and a first guiding convex block; the triggering mechanism includes a first trigger, a first sliding table, a first sliding rail and a first spring connecting block; the fixed platform includes a support arm, a third spring connecting block and a first locking pin moving table; the two ends of the support arm are both fixedly provided with first locking pin moving tables, the first locking pin can slide in the first locking pin moving table, the bottom of the first locking pin is provided with a first triggering foot, the first triggering foot is arranged outside the first locking pin moving table, and the first triggering foot can contact the first trigger;

[0008] The first locking pin is provided with a second spring connection block which can slide within the first locking pin moving platform. One end of a first return spring is connected to the second spring connection block, and the other end of the first return spring is connected to a third spring connection block. A first guiding convex block is fixedly installed below the support arm, and a first opening groove is provided in the middle of the first guiding convex block.

[0009] The first trigger is vertically arranged on the first sliding platform, and fourth spring connection blocks are provided on both sides of the first sliding platform. A second return spring is provided between the first spring connection block and the fourth spring connection block.

[0010] Furthermore: A first clamping block is provided on the side of the first locking pin, and the first clamping block can be clamped in the groove on the end face of the floating control platform.

[0011] Furthermore: The first sliding platform is slidably arranged on the first slide rail, and the first slide rail is arranged on the bottom frame; the first spring connection block is fixed on the bottom frame.

[0012] Furthermore: The first guiding convex block is of a trapezoidal structure, and a first inclined surface is provided on the side of the first guiding convex block close to the first trigger, and the first inclined surface is of a symmetric structure.

[0013] Furthermore: The middle locking pin mechanism includes a second locking pin, a second locking pin moving platform, a curved surface convex block, a second trigger and an orbital groove bracket. The second locking pin moving platform is fixedly arranged on the rotating shaft. Second locking pins are slidably arranged inside the upper and lower ends of the second locking pin moving platform. Two symmetrically arranged curved surface convex blocks are provided on the side of the second locking pin moving platform away from the air exchange pipe. An orbital groove bracket is provided between the two curved surface convex blocks and they do not contact each other. The second trigger is slidably arranged on the orbital groove bracket, and the orbital groove bracket is sleeved on the rotating shaft and they do not contact each other.

[0014] A fifth spring connection block is provided on the second locking pin moving platform, and a sixth spring connection block is provided on the side wall of the second locking pin. A third return spring is provided between the fifth spring connection block and the sixth spring connection block. The sixth spring connection block can slide within the second locking pin moving platform, and a chute for the second locking pin and the sixth spring connection block to slide is reserved inside the second locking pin moving platform. A second trigger foot is provided at the bottom of the second locking pin, and the second trigger foot contacts the second trigger. A second clamping block is provided on one side of the second locking pin, and the second clamping block can be clamped into the groove on the end face of the floating control platform.

[0015] Furthermore: Second inclined surfaces symmetrically arranged along the fourth opening groove are provided inside the curved surface convex block, and second bevel edges are symmetrically provided on the outer side edge of the curved surface convex block. Under the stressed state, the second trigger can circularly move along the second bevel edge, the second inclined surface, the fourth opening groove, the second opening groove and the edge of the third opening groove.

[0016] One end of the curved bump close to the second locking pin moving platform is provided with a bump mounting plate. Both sides of the bump mounting plate are provided with third opening grooves. The middle of the curved bump is provided with a fourth opening groove. One side of the third opening groove corresponding to the fourth opening groove is provided with a second opening groove. The second trigger can pass through the third opening groove and the second opening groove.

[0017] Further: The end of the track groove bracket is provided with a bracket connection ring. The upper end of the bracket connection ring is provided with a track block. A track sliding groove is arranged inside the track block. A second slider is slidably arranged in the track sliding groove. One end of the second slider is connected to one end of a fourth return spring. The other end of the fourth return spring is connected to the track groove bracket.

[0018] Still further: The bracket connection ring is sleeved on the rotating shaft and does not contact the rotating shaft. The bracket connection ring is located inside the curved bump and does not contact each other.

[0019] The present invention has the following advantages:

[0020] Through the airbag folding and ventilation to realize the cyclic conversion of buoyancy potential energy, reducing the dependence on external energy; the symmetrical airbag layout cooperates with the locking pin mechanism to achieve continuous power output, improving the operation stability; the mechanical interlock design of the floating control ring and the middle / bottom locking pin mechanism accurately controls the timing of airbag inflation and deflation.

[0021] Other features and advantages of the present invention will be described in the following specification. Moreover, some of them will become obvious from the specification or be understood by implementing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more intuitively illustrate the prior art and the present application, exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings generally should not be regarded as limiting conditions when implementing the present application; for example, those skilled in the art are capable of making routine adjustments or further optimizations to the addition / deletion / attribution division of certain units (components), specific shapes, positional relationships, connection methods, dimensional proportional relationships, etc. based on the technical concept disclosed in the present application and the exemplary drawings.

[0023] Figure 1 Schematic diagram of the structure of a liquid buoyancy engine provided by an embodiment of the present application.

[0024] Figure 2 Schematic diagram of the structure of the middle bottom locking pin mechanism of the liquid buoyancy engine provided by the present invention.

[0025] Figure 3 Schematic diagram of the structure of the bottom locking pin mechanism of the present invention after removing the first locking pin moving platform.

[0026] Figure 4 For Figure 3 Schematic diagram of the structure after removing the first guiding bump.

[0027] Figure 5 This is a schematic structural diagram of the middle locking pin mechanism of the liquid buoyancy engine provided by the present invention.

[0028] Figure 6 For Figure 5 This is a schematic structural diagram of the locking pin mechanism shown after removing the second locking pin moving platform.

[0029] Figure 7 This is a schematic diagram of the installation position of the second trigger in the liquid buoyancy engine provided by the present invention.

[0030] Figure 8 This is a schematic structural diagram of the curved bump in the liquid buoyancy engine provided by the present invention.

[0031] Figure 9 This is a schematic diagram of the mechanism of the track groove bracket in the liquid buoyancy engine provided by the present invention.

[0032] Figure 10 This is a schematic structural diagram of the fixed platform in the liquid buoyancy engine provided by the present invention.

[0033] In the figure: 1. Airbag folding floating cabin; 2. Float control ring;

[0034] 3. Middle locking pin mechanism; 301. Second locking pin; 302. Second locking pin moving platform; 303. Fifth spring connecting block; 304. Third return spring; 305. Sixth spring connecting block; 306. Curved bump; 307. Second trigger; 308. Track groove bracket; 309. Second trigger foot; 310. Second clamping block; 312. Second slider; 313. Fourth return spring; 314. Second opening groove; 315. Third opening groove; 316. Bump mounting plate; 317. Bracket connecting ring; 318. Second hypotenuse; 319. Second inclined plane; 320. Fourth opening groove; 321. Track block; 322. Track chute;

[0035] 4. Fixed platform; 401. Support arm; 402. Third spring connecting block; 403. First locking pin moving platform; 404. Air outlet;

[0036] 5. Bottom locking pin mechanism; 501. First locking pin; 502. First return spring; 503. First clamping block; 504. Second spring connecting block; 505. First guiding bump; 506. First opening groove; 507. First inclined plane; 508. First trigger foot;

[0037] 6. Rotating shaft; 7. Air exchange pipe; 8. Float control platform

[0038] 9. Trigger mechanism; 901. First slide rail; 902. First trigger; 903. Fourth spring connection block; 904. Second return spring; 905. First slide table; 906. First spring connection block; Detailed implementation manners

[0039] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. It should be understood that these embodiments are only for further explaining the present invention and cannot be construed as limiting the protection scope of the present invention. Technical engineers in this field can make some non-essential improvements and adjustments to the present invention according to the content of the above invention; based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0040] Please refer to Figures 1 - 10 , a liquid buoyancy engine, comprising an airbag type folding floating cabin 1, a floating control ring 2, a middle locking pin mechanism 3, a fixed platform 4, a bottom locking pin mechanism 5, a rotating shaft 6, an air exchange pipe 7, a floating control platform 8 and a trigger mechanism 9. One end of the airbag type folding floating cabin 1 is arranged on the fixed platform 4, the other end of the airbag type folding floating cabin 1 is arranged on the floating control platform 8, and the middle part of the airbag type folding floating cabin 1 is connected to the floating control ring 2; both ends of the fixed platform 4 are provided with bottom locking pin mechanisms 5, and the bottom locking pin mechanisms 5 can lock or unlock the floating control platform 8; the bottom locking pin mechanisms 5 are used in cooperation with the trigger mechanism 9, and the opening and closing of the bottom locking pin mechanisms 5 can be realized through the trigger mechanism 9; there are two groups of the airbag type folding floating cabin 1, the floating control ring 2, the fixed platform 4, the bottom locking pin mechanism 5 and the floating control platform 8, and both ends of the two groups of fixed platforms 4 are connected together through the air exchange pipe 7. An air ventilation pipeline is arranged inside the fixed platform 4, and an air outlet 404 is arranged on one side close to the airbag type folding floating cabin 1, so that the air exchange pipe 7 can connect the two airbag type folding floating cabins 1; the air exchange pipe 7 passes through the rotating shaft 6, and the middle part of the air exchange pipe 7 is fixed on the rotating shaft 6; a middle locking pin mechanism 3 is arranged on the rotating shaft 6, and the middle locking pin mechanism 3 can lock or unlock the floating control platform 8.

[0041] During use, starting from the vertical position, the upper airbag folding floating cabin 1 is unlocked by the middle lock pin mechanism 3, so that the upper floating control platform 8 is released. Then, the upper airbag folding floating cabin 1 starts to ventilate with the lower airbag folding floating cabin 1, causing the lower airbag folding floating cabin 1 unlocked by the bottom lock pin mechanism 5 to inhale and start to expand. When the ventilation between the upper and lower airbag folding floating cabins 1 is completed, the upper floating control platform 8 is snapped into the bottom lock pin mechanism 5, and the lower floating control platform 8 is snapped into the middle lock pin mechanism 3, thus completing the locking of the upper airbag folding floating cabin 1 with exhausted gas and the lower airbag folding floating cabin 1 with filled gas. After the lower airbag folding floating cabin 1 expands, affected by buoyancy, it moves upward, thereby driving the rotating shaft 6 to rotate through the ventilation pipe. The lower airbag folding floating cabin 1 filled with gas rotates to the upper side, and the upper airbag folding floating cabin 1 with exhausted gas rotates to the lower side. Then, when in the vertical position, the middle lock pin mechanism 3 starts to unlock the upper floating control platform 8 again, and at the same time, the bottom lock pin mechanism 5 starts to unlock the lower floating control platform 8 again, repeating the previous process in a cycle, enabling the rotating shaft 6 to rotate. In addition, in order to ensure that the rotating shaft 6 rotates continuously, a motor can be added to the rotating shaft 6 as a power output source to assist the rotating shaft 6 in rotating. Especially when the airbag folding floating cabin 1 cannot complete autonomous rotation, it serves as an auxiliary power to drive its rotation. When the airbag folding floating cabin 1 can rotate again, the motor is stopped, thus realizing the long-term rotation of the rotating shaft 6.

[0042] Refer to Figures 2 - 4 , the bottom lock pin mechanism 5 includes a first lock pin 501 and a first guiding convex block 505; the triggering mechanism 9 includes a first trigger 902, a first slide rail 901, a first slide table 905 and a first spring connecting block 906; the fixed platform 4 includes a support arm 401, a third spring connecting block 402 and a first lock pin moving platform 403. First lock pin moving platforms 403 are provided at both ends of the support arm 401. A partial structure of the first lock pin 501 can slide within the first lock pin moving platform 403. A first triggering foot 508 is provided at the bottom of the first lock pin 501. The first triggering foot 508 is arranged outside the first lock pin moving platform 403 and can contact the first trigger 902.

[0043] A first clamping block 503 is provided on the side of the first lock pin 501. The first clamping block 503 can be stuck in the groove on the end face of the floating control platform 8, thereby realizing the locking of the floating control platform 8.

[0044] The first locking pin 501 is provided with a second spring connection block 504. The second spring connection block 504 can slide within the first locking pin moving platform 403. One end of the first return spring 502 is connected to the second spring connection block 504, and the other end of the first return spring 502 is connected to the third spring connection block 402. Thus, after the second spring connection block 504 undergoes displacement, it will be affected by the elastic force of the first return spring 502.

[0045] A first guiding convex block 505 is fixedly installed below the support arm 401. Refer to Figure 3 , and a first opening groove 506 is provided in the middle of the first guiding convex block 505. The first opening groove 506 can allow the first trigger 902 to pass through; the first guiding convex block 505 has a trapezoidal structure, and a first inclined surface 507 is provided on one side of the first guiding convex block 505 close to the first trigger 902. The first inclined surface 507 is a symmetric structure, which can enable the first trigger 902 to move along the smooth curved surface of the first inclined surface 507.

[0046] The first trigger 902 is vertically arranged on the first sliding platform 905. Fourth spring connection blocks 903 are provided on both sides of the first sliding platform 905; the first sliding platform 905 is slidably arranged on the first sliding rail 901, and the first sliding rail 901 is arranged on the bottom frame (the function of this frame is similar to a horizontal ground, which is very simple and not shown in the figure, so it is not drawn in the figure); the first spring connection block 906 is also fixed on the bottom frame, and a second return spring 904 is provided between the first spring connection block 906 and the fourth spring connection block 903.

[0047] In this embodiment, in order to achieve the best use effect, two sets of the first return spring 502 and the second return spring 904 are provided; and the two sets of the first return spring 502 are symmetrically arranged on both sides of the first locking pin 501; the two sets of the second return spring 904 are symmetrically arranged on both sides of the first sliding platform 905.

[0048] During the use process, when the rotating shaft 6 rotates, the air exchange pipe 7 connected to it will also rotate synchronously, and further cause the first guiding convex block 505 and the first locking pin moving platform 403 connected to it to rotate. Since the first trigger 902 is arranged on the first sliding platform 905, therefore, the first trigger 902 will move towards the first inclined surface 507 of the first guiding convex block 505. When the first trigger 902 slides out of the first inclined surface 507, it is affected by the elastic force of the compressed second return spring 904, causing the first trigger 902 to start resetting.

[0049] When the first trigger 902 leaves the first trigger foot 508, the first lock pin 501 begins to be pulled by the first return spring 502, so that the first lock pin 501 begins to return from the open state to the locked state (that is, the first lock pin 501 begins to move toward the fixing platform 4). At this time, the first trigger foot 508 is stuck in the middle of the first inclined surface 507 of the first guide protrusion 505.

[0050] The rotating shaft 6 continues to rotate until another first guide protrusion 505 begins to contact the first trigger 902, and the first trigger 902 is located on the outside of the first guide protrusion 505, so that the first trigger 902 begins to move along the outside of the first guide protrusion 505 and moves all the way to the first opening groove 506; when the first trigger 902 is at the first opening groove 506, it is pulled by the second return spring 904 and begins to move toward the first trigger foot 508, and continues to move the first trigger foot 508 out of the first inclined surface 507. At this time, the first locking pin 501 is moved outward, thereby unlocking the first locking pin 501, and the cycle is repeated, so that the two floating control platforms 8 can be locked and unlocked.

[0051] See also Figures 5 - 10 The middle locking pin mechanism 3 includes a second locking pin 301, a second locking pin moving platform 302, a curved protrusion 306, a second trigger 307 and a track groove bracket 308. The second locking pin moving platform 302 is fixedly arranged on the rotating shaft 6. The second locking pin 301 is slidably arranged in the upper and lower ends of the second locking pin moving platform 302. The second locking pin moving platform 302 is provided with two curved protrusions 306 symmetrically arranged up and down on the side away from the ventilation pipe 7. A track groove bracket 308 is provided between the two curved protrusions 306 and do not contact each other. A second trigger 307 is slidably arranged on the track groove bracket 308. The track groove bracket 308 is sleeved on the rotating shaft 6 and does not contact each other. The track groove bracket 308 is fixed on the mounting bracket of the rotating shaft 6 (the rotating shaft bracket is very simple and is not shown in the figure), so that when the rotating shaft 6 rotates, the track groove bracket 308 does not rotate.

[0052] The structure of the second lock pin 301 is roughly the same as that of the first lock pin 501. A fifth spring connecting block 303 is provided on the second lock pin moving platform 302, and a sixth spring connecting block 305 is provided on the side wall of the second lock pin 301. A third reset spring 304 is provided between the fifth spring connecting block 303 and the sixth spring connecting block 305. The sixth spring connecting block 305 can slide in the second lock pin moving platform 302. A sliding groove is reserved in the second lock pin moving platform 302 for the second lock pin 301 and the sixth spring connecting block 305 to slide. During installation, the sixth spring connecting block 305 can be installed on the second lock pin 301 by screws or welding.

[0053] The bottom of the second locking pin 301 is provided with a second trigger foot 309, the second trigger foot 309 contacts the second trigger 307, and the second locking pin 301 is further provided with a second locking block 310. The second locking block 310 can be inserted into the grooves on both end faces of the floating control platform 8, so as to lock or unlock the floating control platform 8.

[0054] Refer to Figures 7 - 9 , one end of the curved surface bump 306 close to the second locking pin moving platform 302 is provided with a bump mounting plate 316. Both sides of the bump mounting plate 316 are provided with third opening grooves 315. The middle of the curved surface bump 306 is provided with a fourth opening groove 320. One side of the third opening groove 315 corresponding to the fourth opening groove 320 is provided with a second opening groove 314. The second trigger 307 can pass through the fourth opening groove 320, the third opening groove 315 and the second opening groove 314.

[0055] The inside of the curved surface bump 306 is provided with second inclined surfaces 319 symmetrically arranged along the fourth opening groove 320. The outer sides of the curved surface bump 306 are symmetrically provided with second inclined edges 318. Under the stressed state, the second trigger 307 can move cyclically along the edges of the second inclined edge 318, the second inclined surface 319, the fourth opening groove 320, the second opening groove 314, and the third opening groove 315.

[0056] The end of the track groove bracket 308 is provided with a bracket connecting ring 317. The upper end of the bracket connecting ring 317 is provided with a track block 321. The inside of the track block 321 is provided with a track chute 322. A second slider 312 is slidably arranged in the track chute 322 and the second trigger 307 is fixed directly above the second slider 312. One end of the second slider 312 is connected to one end of the fourth return spring 313. The other end of the fourth return spring 313 is connected to a bracket leg of the corresponding track groove in the track groove bracket 308; the track groove bracket 318 is fixed to the bracket of the rotating shaft 6 through four bracket legs. The bracket connecting ring 317 is sleeved on the rotating shaft 6 and does not contact the rotating shaft 6. The bracket connecting ring 317 is located inside the curved surface bump 306 and does not contact each other.

[0057] During use, when the second locking pin moving platform 302 starts to rotate following the rotating shaft 6, the curved surface bump 306 starts to rotate along with the second locking pin moving platform 302. The rotation of the curved surface bump 306 causes the second inclined surface 319 to contact the second trigger 307, causing the second trigger 307 to move along the second inclined surface 319 to the second inclined edge 318. During the process of the second trigger 307 moving to the second inclined edge 318, the second trigger 307 is disengaged from the second trigger foot 309, causing the sixth spring connecting block 305 to be affected by the pulling force of the third return spring 304 and start to move towards the fifth spring connecting block 303, thereby causing the second locking pin 301 to reset to the locked position state;

[0058] When the second trigger 307 is located at the gap between two second hypotenuses 318, the second trigger 307 starts to reset under the elastic force of the compressed fourth reset spring 313. When the next curved bump 306 rotates to contact the second trigger 307, at this time, the second trigger 307 is squeezed by the second hypotenuse 318 of the curved bump 306 and starts to move along the second hypotenuse 318 towards the third opening groove 315. And the second trigger 307 keeps moving in the third opening groove 315 until it reaches the second opening groove 314, then enters the fourth opening groove 320 again, and moves towards the track groove bracket 308 in the fourth opening groove 320. During the movement, it will drive the second trigger pin 309 to move outwards, so that the second locking pin 301 starts to unlock. By repeating this process, the locking and unlocking of the floating control platform 8 can be realized.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liquid buoyancy engine, comprising an airbag-type foldable buoyancy chamber (1), a buoyancy control ring (2), a middle locking pin mechanism (3), a fixing platform (4), a bottom locking pin mechanism (5), a rotating shaft (6), a ventilation pipe (7), a buoyancy control platform (8) and a trigger mechanism (9), characterized in that: The two ends of the airbag-type foldable floating cabin (1) are respectively connected to the floating control platform (8) and the fixed platform (4), and the middle part of the airbag-type foldable floating cabin (1) is connected to the floating control ring (2); both ends of the fixed platform (4) are provided with a bottom locking pin mechanism (5), the bottom locking pin mechanism (5) can lock or unlock the floating control platform (8), and the bottom locking pin mechanism 5 is used in conjunction with the trigger mechanism 9; the airbag-type foldable floating cabin (1), the floating control ring (2), the fixed platform (4), the bottom locking pin mechanism (5) and the floating control ring (2) are connected to the fixed platform (4); The control platform (8) is provided with two groups, and both ends of the two groups of fixed platforms (4) are connected together through a ventilation pipe (7). A ventilation pipe is provided inside the fixed platform (4), and the ventilation pipe (7) connects the two airbag-type folding floating cabins (1); the ventilation pipe (7) passes through the rotating shaft (6), and the middle part of the ventilation pipe (7) is fixedly connected to the rotating shaft (6); the rotating shaft (6) is provided with a middle locking pin mechanism (3), and the middle locking pin mechanism (3) can lock or unlock the floating control platform (8).

2. The liquid buoyancy engine according to claim 1, characterized in that: The fixing platform (4) is provided with an air outlet (404) on a side close to the airbag-type folding floating cabin (1). The liquid buoyancy engine according to claim 1 is characterized in that the bottom locking pin mechanism (5) includes a first locking pin (501) and a first guide protrusion (505); the trigger mechanism (9) includes a first slide rail (901), a first trigger (902), a first slide platform (905) and a first spring connecting block (906); the fixed platform (4) includes a support arm (401), a third spring connecting block (402) and a first locking pin moving platform (403); both ends of the support arm (401) are provided with a first locking pin moving platform (403), the first locking pin (501) can slide in the first locking pin moving platform (403), the bottom of the first locking pin (501) is provided with a first trigger foot (508), the first trigger foot (508) is arranged on the outside of the first locking pin moving platform (403), and the first trigger foot (508) can contact the first trigger (902); A second spring connection block (504) is provided on the first lock pin (501), and the second spring connection block (504) can slide in the first lock pin moving platform (403). The second spring connection block (504) is connected to one end of the first return spring (502), and the other end of the first return spring (502) is connected to the third spring connection block (402); a first guide protrusion (505) is fixedly installed below the support arm (401), and a first opening groove (506) is provided in the middle of the first guide protrusion (505); The first trigger (902) is vertically arranged on the first slide (905), and fourth spring connecting blocks (903) are arranged on both sides of the first slide (905); a second return spring (904) is arranged between the first spring connecting block (906) and the fourth spring connecting block (903).

3. The liquid buoyancy engine according to claim 3, characterized in that: A first clamping block (503) is provided on the side of the first locking pin (501), and the first clamping block (503) can be clamped in a groove on the end surface of the floating control platform (8).

4. The liquid buoyancy engine according to claim 3, characterized in that: The first slide platform (905) is slidably arranged on the first slide rail (901), and the first slide rail (901) is arranged on the bottom frame; the first spring connection block (906) is fixed on the bottom frame.

5. The liquid buoyancy engine according to claim 3, characterized in that: The first guide protrusion (505) is a trapezoidal structure, and a first inclined surface (507) is provided on one side of the first guide protrusion (505) close to the first trigger (902), and the first inclined surface (507) is a symmetrical structure.

6. The liquid buoyancy engine according to claim 1, characterized in that: The middle lock pin mechanism (3) comprises a second lock pin (301), a second lock pin moving platform (302), a curved surface protrusion (306), a second trigger (307) and a track groove bracket (308); the second lock pin moving platform (302) is fixedly arranged on the rotating shaft (6); the second lock pin (301) is slidably arranged in the upper and lower ends of the second lock pin moving platform (302); two curved surface protrusions (306) are symmetrically arranged up and down on the side of the second lock pin moving platform (302) away from the ventilation pipe (7); a track groove bracket (308) is arranged between the two curved surface protrusions (306); the track groove bracket (308) is not in contact with the curved surface protrusion (306); a second trigger (307) is slidably arranged on the track groove bracket (308); the track groove bracket (308) is sleeved on the rotating shaft (6); the track groove bracket (308) is not in contact with the rotating shaft (6); A fifth spring connection block (303) is provided on the second lock pin moving platform (302), a sixth spring connection block (305) is provided on the side wall of the second lock pin (301), a third reset spring (304) is provided between the fifth spring connection block (303) and the sixth spring connection block (305), the sixth spring connection block (305) can slide in the second lock pin moving platform (302), and a sliding groove for the second lock pin (301) and the sixth spring connection block (305) to slide is reserved in the second lock pin moving platform (302); a second trigger foot (309) is provided at the bottom of the second lock pin (301), the second trigger foot (309) contacts the second trigger (307), and a second clamping block (310) is provided on the second lock pin (301), and the second clamping block 310 can be clamped into the end surface groove of the floating control platform 8.

7. The liquid buoyancy engine according to claim 7, characterized in that: The interior of the curved convex block (306) is provided with a second inclined surface (319) symmetrically arranged along the fourth opening groove (320), and the outer side of the curved convex block (306) is provided with a second inclined edge (318), and under a force state, the second trigger (307) can cyclically move along the edges of the second inclined edge (318), the second inclined surface (319), the fourth opening groove (320), the second opening groove (314), and the third opening groove (315); A protrusion mounting plate (316) is provided at one end of the curved protrusion (306) close to the second locking pin moving platform (302), third opening grooves (315) are provided on both sides of the protrusion mounting plate (316), a fourth opening groove (320) is provided in the middle of the curved protrusion (306), a second opening groove (314) is provided on one side of the third opening groove (315) corresponding to the fourth opening groove (320), and the second trigger (307) can pass through the third opening groove (315) and the second opening groove (314).

8. The liquid buoyancy engine according to claim 7, characterized in that: The end of the track groove bracket (308) is provided with a bracket connecting ring (317), the upper end of the bracket connecting ring (317) is provided with a track block (321), the track block (321) is provided with a track slide groove (322), a second slider (312) is slidably provided in the track slide groove (322), the second trigger 307 is fixed above the second slider 312, the second slider (312) is connected to one end of a fourth return spring (313), and the other end of the fourth return spring (313) is connected to the track groove bracket (308).

9. The liquid buoyancy engine according to claim 7, characterized in that: The support connecting ring (317) is sleeved on the rotating shaft (6) and does not contact the rotating shaft (6). The support connecting ring (317) is located inside the curved surface protrusion (306) and the support connecting ring (317) and the curved surface protrusion (306) do not contact each other.

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