Floating transportation towing device

Abstract

The invention discloses a floating transportation towing device which comprises a floating module, a carrying module and a propelling module, and the floating module is used for floating on the water surface; the carrying module comprises a plurality of air bags and a first inflation unit, the longitudinal section of each air bag is of a fan-shaped structure, the air bags are stacked on the floating module from bottom to top to form an air bag group with the longitudinal section of a fan-shaped structure, the surface of the air bag on the topmost layer is used for carrying a to-be-conveyed supporting pipe, and the surface of the air bag on the topmost layer is used for carrying a to-be-conveyed supporting pipe. The first inflation unit communicates with the air bags and is used for inflating the air bags or exhausting air in the air bags so as to adjust the plumpness of the air bags. The floating transportation towing device has the beneficial effects that under the conditions that the water level is high and the horizontal and vertical space is narrow, the work of transportation of transverse and longitudinal supporting pipes of steel pipe piles on the water surface at designated positions, fixing of the positions of the steel pipes, auxiliary hoisting and welding can be completed.

Description

Technical Field

[0001] The present invention relates to the technical field of floating equipment, and particularly relates to a floating towing device. Background Art

[0002] With the rapid development of modern bridges in China, their erection structures are no longer satisfied with a single structural form and tend to be diversified. During the bridge construction process, as Figure 1 shown, it is necessary to weld transverse and longitudinal support pipes 2 between adjacent steel pipe piles 1 to improve the strength of the pile foundation. Since both ends of the support pipe 2 have bevels 21, the support pipe 2 cannot enter between adjacent steel pipe piles 1 in a horizontal posture, and the support pipe 2 must enter between adjacent steel pipe piles 1 in an inclined posture. The whole process is often restricted by adverse factors such as terrain and hydrology, and the erection of cross-sea and cross-river bridges is particularly affected by hydrological conditions such as water level, flow velocity, and water volume. This also makes it necessary to solve the problem of transporting the transverse and longitudinal support pipes of steel pipe piles to the designated position and completing the hoisting and welding in a narrow space on the water surface under adverse hydrological conditions.

[0003] The traditional floating towing method uses a ship to transport the support pipe to the designated position for welding construction, which is mainly suitable for the situation of deep river channels, slow water flow velocity, and small water transportation traffic volume. When the water level is high, the water depth in the construction area increases, which compresses the distance between the water surface and the top of the steel pipe pile. The tools used in the traditional floating towing method are limited, and it is impossible to use a ship to transport the support pipe to the designated position for welding construction. That is, in the traditional floating towing method, in the case of high water level construction, due to the increased interference of water flow, the navigation ability of the ship is limited. Due to the insufficient horizontal space between the steel pipe piles and the vertical space compression caused by the rising water level, the space becomes narrow and the operation is limited.

[0004] Existing floating towing devices (such as a towing device for floating transportation of large-diameter single piles for offshore wind power disclosed in Application No. 202010605358.2) are mostly rigid structures and cannot complete the transportation of the transverse and longitudinal support pipes of steel pipe piles to the designated position, the fixation of the steel pipe position, the auxiliary hoisting and welding on the water surface under the conditions of high water level, narrow horizontal and vertical spaces. Summary of the Invention The purpose of the present invention is to overcome the above technical deficiencies and propose a floating towing device to solve the technical problem that in the prior art, it is impossible to complete the transportation of the transverse and longitudinal support pipes of steel pipe piles to the designated position, the fixation of the steel pipe position, the auxiliary hoisting and welding on the water surface under the conditions of high water level, narrow horizontal and vertical spaces.

[0005] To achieve the above technical purpose, the technical solution of the present invention provides a floating towing device, including: A floating module, which is used for floating on the water surface; The carrying module includes a plurality of airbags and a first inflation unit. The longitudinal section of each airbag is a sector structure, and they are stacked on the floating module from bottom to top to form an airbag group with a sector-shaped longitudinal section. The surface of the topmost airbag is used to carry the support pipe to be transported. The first inflation unit is connected to each airbag to inflate each airbag or extract the gas from each airbag to adjust the fullness of each airbag; The propulsion module is used to drive the floating module to move on the water surface.

[0006] Furthermore, the floating module includes a bottom plate and a water filling unit. The bottom plate has a cavity, and the water filling unit is connected to the cavity to fill water into the cavity or extract the water from the cavity to adjust the sinking depth of the bottom plate.

[0007] Furthermore, the water filling unit includes a water pipe and a water pump. One end of the water pipe is connected to the cavity, and the port of the water pump is connected to the other end of the water pipe.

[0008] Furthermore, both ends of the bottom plate in the traveling direction have a V-shaped opening, and the opening width of the V-shaped opening gradually increases from inside to outside.

[0009] Furthermore, the floating module further includes wear-resistant cloth, and the wear-resistant cloth covers the surfaces of the two V-shaped openings respectively.

[0010] Furthermore, the first inflation unit includes a first air pipe and a first air pump. One end of the first air pipe has a plurality of ports, and each port of the first air pipe is correspondingly connected to the higher side of each airbag. The port of the first air pump is connected to the other end of the first air pipe.

[0011] Furthermore, the carrying module further includes a plurality of first woven nets. Each first woven net correspondingly covers the outside of each airbag, and the adjacent first woven nets are detachably and fixedly connected.

[0012] Furthermore, the carrying module further includes a second woven net. The second woven net covers the outside of the bottom plate, and the second woven net is detachably and fixedly connected to the bottommost first woven net.

[0013] Furthermore, the carrying module further includes a carrying seat. The carrying seat is arranged on the surface of the topmost airbag and is fixedly connected to the topmost airbag. The carrying seat has a groove. The bottom of the groove is parallel to the surface of the topmost airbag. Both the low end and the high end of the groove are open, and the groove is used to carry the support pipe to be transported.

[0014] Further, the propulsion module includes a plurality of nozzles, a plurality of one-way valves, and a second inflation unit. Each of the nozzles is disposed at the bottom of the bottom plate. Each of the nozzles has at least three closable jet ports. Each of the jet ports is used to eject gas in all directions in a horizontal plane. The outlet end of each of the one-way valves is in one-to-one correspondence and communication with the inlet end of each of the nozzles. The second inflation unit is in communication with the inlet end of each of the one-way valves to inflate each of the one-way valves so that the gas is ejected from the opened jet ports of each of the nozzles.

[0015] Compared with the prior art, the beneficial effects of the present invention include: during use, after the floating towing device is transported to a preset position by the hull, the external computing system calculates an inclination angle that can ensure that the support pipe can enter the narrow working space according to the distance between adjacent steel pipe piles and the distance between the water surface and the top of the steel pipe piles. Then, by controlling the first inflation unit, the first inflation unit can inflate each of the air bags, thereby adjusting the fullness of the higher side of each air bag, and further adjusting the inclination angle of the support pipe to make the inclination angle of the support pipe equal to the preset value. Then, by controlling the propulsion module, the propulsion module can propel the floating module to move on the water surface, so that the floating module reaches between adjacent steel pipe piles, and further enables the support pipe to enter between adjacent steel pipe piles in an inclined posture. Then, use a hoist to lift the support pipe and adjust the height of the support pipe to make the support pipe reach the height required for welding. The floating towing device can complete the work of transporting the transverse and longitudinal support pipes of the steel pipe piles to the specified positions on the water surface, fixing the position of the steel pipe, assisting in hoisting and welding under the conditions of high water level, narrow horizontal and vertical spaces. Description of the Drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of the positional relationship between the existing steel pipe pile and the support pipe; Figure 2 is a three-dimensional structural schematic diagram of a floating towing device provided by the present invention; Figure 3 is a three-dimensional structural schematic diagram of a floating towing device provided by the present invention from another perspective; Figure 4 is a three-dimensional structural schematic diagram of the air bag group provided by the present invention; Figure 5 is a front view of the air bag group provided by the present invention; Figure 6 is a structural schematic diagram of the connection relationship between the floating module and the propulsion module provided by the present invention; Figure 7 is a structural schematic diagram of the connection relationship between the water filling unit, the first inflation unit, and the second inflation unit provided by the present invention; Figure 8It is a schematic structural diagram of a floating and towing device provided by the present invention when it reaches between adjacent steel pipe piles; In the figure: 1 - steel pipe pile, 2 - support pipe, 21 - bevel, 100 - floating module, 110 - bottom plate, 111 - V-shaped opening, 120 - water filling unit, 121 - water pipe, 122 - water pump, 200 - carrying module, 210 - airbag, 220 - first inflation unit, 221 - first air pipe, 222 - first air pump, 230 - first woven net, 240 - second woven net, 250 - carrying seat, 251 - groove, 300 - propulsion module, 310 - nozzle, 311 - jet opening, 320 - second inflation unit, 321 - second air pipe, 322 - second air pump. Detailed implementation manners

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] The present invention provides a floating and towing device, the structure of which is as Figure 2 - Figure 5 shown, including a floating module 100, a carrying module 200 and a propulsion module 300. The floating module 100 is used to float on the water surface; the carrying module 200 includes a plurality of airbags 210 and a first inflation unit 220. The longitudinal cross-section of each airbag 210 is a fan-shaped structure, and they are stacked on the floating module 100 from bottom to top to form an airbag group with a fan-shaped longitudinal cross-section. The surface of the topmost airbag 210 is used to carry the support pipe 2 to be transported. The first inflation unit 220 is communicated with each airbag 210 to inflate each airbag 210 or extract the gas in each airbag 210 to adjust the fullness of each airbag 210; the propulsion module 300 is used to drive the floating module 100 to move on the water surface.

[0019] In use, after transporting this floating towing device to a preset position through the hull, an external computing system calculates an inclination angle that can ensure the support pipe 2 can enter the narrow working space based on the distance between adjacent steel pipe piles 1 and the distance between the water surface and the top of the steel pipe pile 1. Then, by controlling the first inflation unit 220, the first inflation unit 220 can inflate each of the airbags 210, thereby adjusting the fullness of the higher side of each airbag 210, and further adjusting the inclination angle of the support pipe 2 to make the inclination angle of the support pipe 2 equal to the preset value. Then, by controlling the propulsion module 300, the propulsion module 300 can propel the floating module 100 to move on the water surface, so that the floating module 100 reaches between adjacent steel pipe piles 1, and further enables the support pipe 2 to enter between adjacent steel pipe piles 1 in an inclined posture. Then, by controlling the first inflation unit 220, the first inflation unit 220 can extract the gas in each of the airbags 210, thereby adjusting the fullness of the higher side of each airbag 210, and further adjusting the inclination angle of the support pipe 2 to make the inclination angle of the support pipe 2 zero, and the support pipe 2 is in a horizontal state. During the process of the support pipe 2 changing from an inclined posture to a horizontal posture, the grooves 21 at both ends of the support pipe 2 gradually engage with the two steel pipe piles 1. Then, use a hoist to lift the support pipe 2 and adjust the height of the support pipe 2 to make the support pipe 2 reach the height required for welding. This floating towing device can complete the work of transporting the transverse and longitudinal support pipes 2 of the steel pipe piles 1 to the specified positions on the water surface, fixing the steel pipe positions, assisting in hoisting and welding under the conditions of high water level, narrow horizontal and vertical spaces.

[0020] As a preferred embodiment, please refer to Figure 1 and Figure 6 , the floating module 100 includes a bottom plate 110 and a water filling unit 120. The bottom plate 110 has a cavity, and the water filling unit 120 is communicated with the cavity for filling water into the cavity or pumping out the water in the cavity to adjust the sinking depth of the bottom plate 110. The bottom plate 110 is used to place the carrying module 200. Adjusting the sinking depth of the bottom plate 110 can reduce the center of gravity of this floating towing device, so that this floating towing device can maintain the safety and stability of transportation even in strong winds and waves and high flow velocities.

[0021] As a preferred embodiment, please refer to Figure 2 , the water filling unit 120 includes a water pipe 121 and a water pump 122. One end of the water pipe 121 is communicated with the cavity, and the port of the water pump 122 is communicated with the other end of the water pipe 121. Water can be filled into the water pipe 121 through the water pump 122, and the water in the water pipe 121 flows into the cavity, thereby adjusting the sinking depth of the bottom plate 110.

[0022] As a preferred embodiment, please refer toFigure 2 and Figure 6 At both ends of the bottom plate 110 in the traveling direction, there is a V-shaped opening 111. The opening width of the V-shaped opening 111 gradually increases from inside to outside, which can achieve the function of backflow and reduce the navigation resistance.

[0023] As a preferred embodiment, the floating module 100 further includes wear-resistant cloth, and the wear-resistant cloth covers the surfaces of the two V-shaped openings 111 respectively, reducing the wear on the bottom plate 110 caused by foreign objects on the water surface.

[0024] As a preferred embodiment, please refer to Figure 4 and Figure 5 The first inflation unit 220 includes a first air pipe 221 and a first air pump 222. One end of the first air pipe 221 has a plurality of ports, and each port of the first air pipe 221 is in one-to-one correspondence and communication with the higher side of each airbag 210. The port of the first air pump 222 is communicated with the other end of the first air pipe 221. The first air pump 222 can inflate the first air pipe 221, and the air in the first air pipe 221 enters each airbag 210, so as to adjust the fullness of the higher side of each airbag 210, and further adjust the inclination angle of the support pipe 2. The airbag 210 is designed to be inclined. On the one hand, it is beneficial to enhance the operation flexibility and reduce the hoisting and shipping costs. On the other hand, it can also improve the operation efficiency.

[0025] As a preferred embodiment, please refer to Figure 2 and Figure 4 The carrying module 200 further includes a plurality of first woven nets 230. Each first woven net 230 is correspondingly wrapped outside each airbag 210, and the adjacent first woven nets 230 are detachably and fixedly connected to each other, so that the airbag group formed by each airbag 210 can be more stable.

[0026] As a preferred embodiment, please refer to Figure 2 The carrying module 200 further includes a second woven net 240. The second woven net 240 is wrapped outside the bottom plate 110, and the second woven net 240 is detachably and fixedly connected to the bottommost first woven net 230 to fix the airbag group to the bottom plate 110.

[0027] As a preferred embodiment, please refer to Figure 2 and Figure 3, the carrying module 200 further includes a carrying base 250. The carrying base 250 is disposed on the surface of the topmost airbag 210 and is fixedly connected to the topmost airbag 210. The carrying base 250 has a groove 251. The bottom of the groove 251 is parallel to the surface of the topmost airbag 210. Both the low end and the high end of the groove 251 are open. The groove 251 is used to carry the support pipe 2 to be transported. The support pipe 2 to be transported is placed in the groove 251. The high end of the support pipe 2 extends out from the high end of the groove 251, and the low end of the support pipe 2 extends out from the low end of the groove 251. The support pipe 2 is fixed to the carrying base 250 via a rope. The airbag 210 is flexible, which can effectively reduce the wear on the carrying base 250, buffer the impact force, and disperse the impact force. Compared with the traditional transportation method, it can better carry out the floating transportation of steel pipes, and has the characteristics of light storage and reusable.

[0028] As a preferred embodiment, please refer to Figure 6 , the propulsion module 300 includes a plurality of nozzles 310, a plurality of one-way valves, and a second inflation unit 320. Each of the nozzles 310 is disposed at the bottom of the bottom plate 110. Each of the nozzles 310 has at least three closable jet ports 311. Each of the jet ports 311 is used to eject gas in all directions in the horizontal plane. The outlet end of each of the one-way valves is in one-to-one correspondence and communication with the inlet end of each of the nozzles 310. The second inflation unit 320 is in communication with the inlet end of each of the one-way valves to inflate each of the one-way valves, so that the gas is ejected from the opened jet ports 311 of each of the nozzles 310. Each of the jet ports 311 of each of the nozzles 310 can be in an open or closed state according to the navigation requirements, so that the air flow is horizontally ejected along the opened jet ports 311. When the air flow directions are all ejected backward, due to the reaction force, the bottom plate 110 can move forward. When the air flow directions are all ejected forward, due to the reaction force, the bottom plate 110 can move backward. When the air flow directions are all ejected to the right, due to the reaction force, the bottom plate 110 can turn left. When the air flow directions are all ejected to the left, due to the reaction force, the bottom plate 110 can turn right. Thus, the bottom plate 110 can reach between adjacent steel pipe piles 1 along a certain track, realizing the automatic transportation of the support pipe 2. The setting of the one-way valve can prevent water from flowing back.

[0029] As a preferred embodiment, a reversing valve and a driving member are integrated in the spray head 310. The driving member can drive the reversing valve to rotate, so that the inlet end of the spray head 310 is communicated with any one of the jet ports 311 each time. By controlling the driving member, the driving member can be driven to rotate the reversing valve, so that the inlet end of the spray head 310 can be communicated with any one of the jet ports 311, ensuring that the bottom plate 110 can navigate along a certain track.

[0030] As a preferred embodiment, please refer to Figure 3 and Figure 6 , the second inflation unit 320 includes a second air pipe 321 and a second air pump 322. One end of the second air pipe 321 has a plurality of ports, and each port of the second air pipe 321 is in one-to-one correspondence and communication with the inlet end of each one-way valve. The port of the second air pump 322 is communicated with the other end of the second air pipe 321. The second air pump 322 can be used to inflate the second air pipe 321. The air in the second air pipe 321 enters each one-way valve, and then enters each spray head 310 and is ejected along the opened jet port 311.

[0031] As a preferred embodiment, please refer to Figure 7 , the water pump 122, the first air pump 222 and the second air pump 322 are a multi-functional pump. The multi-functional pump can work in the forms of the water pump 122, the first air pump 222 and the second air pump 322. The design of the multi-functional pump refines the functions of air suction and water suction and simplifies the transportation equipment.

[0032] As a preferred embodiment, the floating and towing device further includes a control module. The control module is electrically connected to the water filling unit 120, the first inflation unit 220 and the second inflation unit 320, and is used to control the start and stop of the water filling unit 120, the first inflation unit 220 and the second inflation unit 320, realizing the automatic operation of the device, and completing autonomous detection and autonomous regulation during the whole floating process to make up for the lack of automation of the traditional floating towing method.

[0033] As a preferred embodiment, the control module is electrically connected to the multi-functional pump and is used to control the multi-functional pump to be in the state of air suction or water suction. The control module is also electrically connected to the driving member and is used to control each jet port 311 of each spray head 310 to be in an open or closed state according to the navigation requirements, realizing the automatic operation of the device. During the transportation process, the control module integrates positioning, monitoring and control, and cooperates with an external computing system for collaborative work, ensuring the orderly and smooth progress of the transportation process and reducing the dependence on manual labor.

[0034] For a better understanding of the present invention, the following is combined withFigure 1 - Figure 8 The working principle of the technical solution of the present invention is described in detail: When in use, the control module finds the most suitable preset position for delivery through its built-in sensors to achieve precise delivery. After the floating towing device is transported to the preset position by the hull, the external computing system calculates an inclination angle that can ensure that the support pipe 2 can enter the narrow working space according to the distance between adjacent steel pipe piles 1 and the distance between the water surface and the top of the steel pipe pile 1. The multifunctional pump is then controlled by the control module to inflate the first air pipe 221. The air in the first air pipe 221 enters each of the airbags 210, thereby The fullness of the higher side of each airbag 210 is adjusted, and then the inclination angle of the support tube 2 is adjusted, so that the inclination angle of the support tube 2 is equal to the preset value, and then the multi-function pump is controlled by the control module, and the multi-function pump can inflate the second air pipe 321, and the air in the second air pipe 321 enters each of the one-way valves, and then enters each of the nozzles 310, and is ejected along the opened jet port 311. When the airflow direction is ejected backward, due to the reverse thrust, the bottom plate 110 can move forward, and when the airflow direction is ejected forward, due to the reverse thrust, the bottom plate 1 10 can realize retreat, when the airflow direction is ejected to the right, due to the reverse thrust, the bottom plate 110 can realize left turn, when the airflow direction is ejected to the left, due to the reverse thrust, the bottom plate 110 can realize right turn, so that the bottom plate 110 can reach between adjacent steel pipe piles 1 along a certain track, realize the automatic support pipe 2 transportation, so that the support pipe 2 enters between adjacent steel pipe piles 1 in an inclined posture, and then the multi-functional pump is controlled by the control module, and the multi-functional pump can extract the gas in each of the air bags 210, so that each of the air bags 210 can be adjusted to be relatively The fullness of the high side is determined, and the inclination angle of the support pipe 2 is adjusted to zero, and the support pipe 2 is in a horizontal state. During the process of the support pipe 2 changing from an inclined posture to a horizontal posture, the grooves 21 at both ends of the support pipe 2 gradually engage with the two steel pipe piles 1, and then the hoist is used to lift the support pipe 2, and the height of the support pipe 2 is adjusted to make the support pipe 2 reach the height required for welding. The floating and towing device can complete the work of transporting the steel pipe piles 1 horizontally and longitudinally to the designated positions of the support pipe 2, fixing the position of the steel pipe, auxiliary lifting and welding on the water surface when the water level is high and the horizontal and vertical space is narrow.

[0035] The floating towing device provided by the present invention has the following beneficial effects: (1) The airbag 210 is flexible, which can effectively reduce the wear of the carrier 250, buffer the impact force, and disperse the impact force. Compared with the traditional transportation method, it can better float the steel pipe, and has the characteristics of being easy to store and reusable; (2) Adjust the fullness of the higher side of each airbag 210, thereby adjusting the inclination angle of the support pipe 2, so that the support pipe 2 enters between adjacent steel pipe piles 1 in an inclined posture, ensuring the smooth entry of the support pipe 2 and improving the hoisting work efficiency, saving time and effort; (3) Under the condition of high water level, the height from the water surface to the pier top is compressed, and the distance between adjacent steel pipe piles 1 is short. The height, length and width of tools such as flat floating boxes and ships exceed the available construction space, and the formed narrow space is not convenient for the entry of floating boxes and ships. In addition, when performing transportation operations such as turning between narrow steel pipe piles 1, the water flow speed is relatively fast, and it is difficult for floating boxes and ships to reach stability. This floating transportation and towing device can complete the work of transporting the transverse and longitudinal support pipes 2 of the steel pipe piles 1 to the designated positions on the water surface, fixing the steel pipe positions, assisting hoisting and welding under the conditions of high water level, narrow horizontal and vertical spaces.

[0036] The specific implementation manners of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A floating towing device, characterized in that: include: A floating module, which is used to float on the water surface; The carrying module includes a plurality of airbags and a first inflation unit. The longitudinal sections of the airbags are all fan-shaped structures, and are stacked from bottom to top on the floating module to form an airbag group with a fan-shaped longitudinal section. The surface of the topmost airbag is used to carry the support tube to be transported. The first inflation unit is connected with each airbag to inflate or extract the gas in each airbag to adjust the fullness of each airbag. The propulsion module is used to drive the floating module to move on the water surface.

2. The floating towing device according to claim 1, characterized in that: The floating module comprises a bottom plate and a water filling unit. The bottom plate has a cavity. The water filling unit is connected to the cavity and is used to fill water into the cavity or pump water out of the cavity to adjust the sinking depth of the bottom plate.

3. The floating towing device according to claim 2, characterized in that: The water filling unit includes a water pipe and a water pump, one end of the water pipe is connected to the cavity, and a port of the water pump is connected to the other end of the water pipe.

4. The floating towing device according to claim 2, characterized in that: Both ends of the bottom plate in the traveling direction are provided with a V-shaped opening, and the opening width of the V-shaped opening gradually increases from the inside to the outside.

5. The floating towing device according to claim 4, characterized in that: The floating module also includes an anti-wear cloth, and the anti-wear cloth covers the surfaces of the two V-shaped openings respectively.

6. The floating towing device according to claim 1, characterized in that: The first inflation unit includes a first air pipe and a first air pump. One end of the first air pipe has multiple ports. Each port of the first air pipe is connected to the higher side of each airbag in a one-to-one correspondence. The port of the first air pump is connected to the other end of the first air pipe.

7. The floating towing device according to claim 2, characterized in that: The mounting module further includes a plurality of first woven nets, each of which is covered on the outside of each of the airbags in a one-to-one correspondence, and adjacent first woven nets are detachably fixedly connected.

8. The floating towing device according to claim 7, characterized in that: The mounting module further includes a second braided mesh, which is coated on the outside of the bottom plate and is detachably and fixedly connected to the first braided mesh at the bottom layer.

9. The floating towing device according to claim 1, characterized in that: The carrying module also includes a carrying seat, which is arranged on the surface of the topmost airbag and fixedly connected to the topmost airbag. The carrying seat has a groove, the bottom of the groove is parallel to the surface of the topmost airbag, the lower end and the high end of the groove are both opened, and the groove is used to carry the support tube to be transported.

10. The floating towing device according to claim 2, characterized in that: The propulsion module includes multiple nozzles, multiple one-way valves and a second inflation unit. Each of the nozzles is arranged at the bottom of the base plate. Each of the nozzles has at least three closable jet ports. Each of the jet ports is used to eject gas in various directions in a horizontal plane. The outlet end of each of the one-way valves is connected to the inlet end of each of the nozzles in a one-to-one correspondence. The second inflation unit is connected to the inlet end of each of the one-way valves to inflate each of the one-way valves so that the gas is ejected from the jet ports opened in each of the nozzles.

Images