Lifeboat

Abstract

The invention discloses a lifeboat, which relates to the technical field of water life-saving equipment, and comprises a plurality of depth driving mechanisms, steering driving mechanisms and the like, the depth driving mechanism is composed of a first support, a first hydraulic cylinder and a first hydrofoil device and can adjust the ship body to ascend and descend. The steering driving mechanism comprises a contraction device and a second hydrofoil device, and vertical contraction is achieved through cooperation of a conical barrel. The first hydrofoil device and the second hydrofoil device are each provided with a flow guide cover, a hydrofoil, a driving propeller and the like. The ship body further comprises a fixing ring, an inflation wheel mechanism and a cockpit. In a shallow water area, the steering driving mechanism contracts, and the inflatable wheels assist in driving; in a deep water area, the steering driving mechanism is put down, part of the depth driving mechanism works, and the inflatable wheel assists floating. The lifeboat is high in flexibility and adaptability, few in welding and fixing parts, convenient to disassemble and replace, and capable of rescuing people falling into water on the water surface and improving the movement performance and stability of the lifeboat.

Description

Technical Field

[0001] The present invention relates to the technical field of water lifesaving equipment, in particular to a lifeboat. Background Art

[0002] A lifeboat is a ship's primary means of survival. It's a specialized small craft used by ship's crew for self-rescue or to rescue others in distress at sea. An air tank is installed beneath the pedestal to ensure the boat remains intact even when fully filled with water. The boat is equipped with food, drinking water, first aid kits, accessories, communications equipment, and propulsion systems such as sails, oars, and poles. Some boats also have motorized propulsion systems. Lifeboats are constructed of wood, steel, aluminum alloy, and fiberglass. Fiberglass lifeboats are the most common, as they are easy to build and maintain.

[0003] Lifeboats can be categorized by their structure as open, fully enclosed, and partially enclosed. Open-type lifeboats expose passengers to seawater in winds and waves exceeding force 4-5, and can even pose a life-threatening risk in cold weather or direct sunlight. Lifeboats are primarily classified into the following categories: Open-type lifeboats lack a roof. Partially enclosed lifeboats are primarily deployed on either side of a vessel. The lifeboats are deployed overboard using davits (as shown in the figure) and lowered to the water. Davit-type fully enclosed lifeboats are primarily deployed on either side of a vessel. The lifeboats are deployed overboard using davits (as shown in the figure) and lowered to the water. Free-fall fully enclosed fiberglass lifeboats are primarily deployed at the stern of a vessel. There are two ways to lower the lifeboats: directly into the water along a slide or by having the davits deploy the lifeboats and then drop them onto the water.

[0004] Most current lifeboats are traditional, which have limitations for search and rescue operations: slow steering, low speed, inflexible movement, and limited adaptability to both deep and shallow waters. These limitations place a strain on search and rescue efforts, increasing the risk to people who fall into the water. Summary of the Invention

[0005] The purpose of the present invention is to provide a lifeboat to solve the problems existing in the above-mentioned prior art and to improve the flexibility and adaptability of the lifeboat.

[0006] To achieve the above object, the present invention provides the following solutions: The present invention provides a lifeboat, comprising: a hull, wherein the hull is circular; a plurality of depth driving mechanisms uniformly distributed along the circumference of the hull, the depth driving mechanisms comprising a first bracket, a first hydraulic cylinder, and a first hydrofoil device, the top end of the first bracket being hinged to the hull, the cylinder body of the first hydraulic cylinder being hinged to the hull, the free end of the hydraulic rod of the first hydraulic cylinder being hinged to the first bracket, the first hydraulic cylinder being capable of driving the first bracket to rotate relative to the hull, the first hydrofoil device being fixedly connected to a first rotating shaft, the first rotating shaft being rotatably connected to the bottom end of the first bracket, the first rotating shaft being horizontal, and the bottom end of the first bracket being fixedly provided with a first driving device for driving the first rotating shaft to rotate; The steering drive mechanism comprises a retraction device and a second hydrofoil device, the retraction device comprises a first conical cylinder, a second conical cylinder, a third conical cylinder, a retraction rope, a rope rotating rod, a rotating rod, a rotating support plate and a rotating support rod, the diameters of the first conical cylinder, the second conical cylinder and the third conical cylinder gradually decrease from top to bottom, the diameters of the first conical cylinder, the second conical cylinder and the third conical cylinder are gradually reduced from top to bottom, the second conical cylinder is slidably matched with the first conical cylinder, the third conical cylinder is slidably matched with the second conical cylinder, the first conical cylinder, the second conical cylinder and the third conical cylinder are sequentially distributed from top to bottom, one end of the retraction rope is connected to the bottom end of the third conical cylinder, the rope rotating rod is used to wind up the retraction rope, the rotating rod is rotatably connected to the bottom end of the third conical cylinder through a bearing, the rotating support plate is fixedly connected to the bottom end of the rotating rod, the top of the rotating support rod is fixedly connected to the rotating support plate, the bearing is fixedly provided with a second driving device, and the output shaft of the second driving device is connected to the rotating rod gear transmission; The first hydrofoil device and the second hydrofoil device both include a fairing, hydrofoils installed on both sides of the fairing, a fixing device arranged at the rear end of the fairing, a driving propeller installed on the fixing device, a filter cover covering the driving propeller, a reversing tail installed at the rear end of the filter cover, and a connecting piece fixed to the fairing. The connecting piece in the first hydrofoil device is rotatably connected to the bottom end of the first bracket, and the connecting piece in the second hydrofoil device is fixedly connected to the rotating support rod.

[0007] Preferably, the hull includes a hull floor, a fixing ring, a support member and several first connecting rods, the fixing ring includes an annular foam ring and a stainless steel layer wrapped on the foam ring, the fixing ring is fixed under the hull floor, the support member is cylindrical and coaxial with the fixing ring, the support member is fixed to the fixing ring through all the first connecting rods, and the first connecting rods are distributed along the circumference of the support member.

[0008] Preferably, the hull also includes a plurality of inflatable wheel mechanisms, and the inflatable wheel mechanisms include a first support rod, a second support rod and an inflatable wheel, the first support rod is horizontal, one end of the first support rod is fixedly connected to the fixed ring, one end of the second support rod is fixedly connected to the second rotating shaft, the second rotating shaft is rotatably connected to the other end of the first support rod, the inflatable wheel is rotatably installed on the other end of the second support rod, and a third driving device is fixed on the first support rod, and the third driving device is used to drive the second rotating shaft to rotate.

[0009] Preferably, the first bracket includes a third support rod, a second connecting rod, a third connecting rod and a fourth connecting rod connected in sequence, the third support rod is rotatably matched with at least two of the first connecting rods, the second connecting rod is perpendicular to the third support rod, the free end of the hydraulic rod of the first hydraulic cylinder is hinged to the second connecting rod, and the connecting piece in the first hydrofoil device is rotatably connected to the fourth connecting rod.

[0010] Preferably, it also includes a cockpit arranged above the hull, the cockpit including a protective cover and a cabin bottom, the cabin bottom is fixedly connected to the hull floor, the protective cover is made of transparent plastic, the protective cover is hemispherical, the bottom of the protective cover is sealed to the cabin bottom, an operating table and multiple seats are provided in the cockpit, and a hatch is provided on the protective cover.

[0011] Preferably, a first ball linear guide is installed on the contact surface between the first tapered tube and the second tapered tube, the guide rail of the first ball linear guide is fixedly connected to the inner wall of the first tapered tube, and the slider of the first ball linear guide is fixedly connected to the second tapered tube; a second ball linear guide is installed on the contact surface between the second tapered tube and the third tapered tube, the guide rail of the second ball linear guide is fixedly connected to the inner wall of the second tapered tube, and the slider of the second ball linear guide is fixedly connected to the third tapered tube; the minimum diameter of the first tapered tube is greater than the maximum diameter of the second tapered tube, and the minimum diameter of the second tapered tube is greater than the maximum diameter of the third tapered tube.

[0012] Preferably, the operating table is arranged in the center of the cockpit, and all the seats are arranged in a circular array around the operating table.

[0013] Preferably, there are four hatches, and all of the hatches are evenly distributed along the circumference of the protective cover.

[0014] Preferably, the fixing ring is provided with a groove corresponding to the first connecting rod, and the first connecting rod is partially located in the corresponding groove.

[0015] Compared with the prior art, the present invention has achieved the following technical effects: The lifeboat of the present invention is provided with multiple depth driving mechanisms, so that when the lifeboat moves in the direction where rescue is needed, only the depth driving mechanism in the corresponding direction is turned on, and the other depth driving mechanisms are in standby state. The steering driving mechanism can be used to adjust the ascent and descent of the hull to achieve the rescue of people who fall into the water above and below the water surface; in addition, the speed adjustment of the depth driving mechanism can accelerate the movement speed of the hydrofoil, thereby making the hull leave the water surface and improving the movement performance of the lifeboat.

[0016] Furthermore, the lifeboat's circular structure allows for greater isotropy of incoming currents than traditional boats. Doors are located on four sides, enabling simultaneous rescue of people from all directions. A protective shield protects both rescued and rescuers from secondary currents and incoming currents.

[0017] Furthermore, in shallow water, the pneumatic wheel can serve as a floating power assist device to facilitate the movement of the hull; in deep water, it can also serve as a balancing and flotation device for the hull. The second support member of the pneumatic wheel is connected to the axial hole of the first support member and can rotate vertically to achieve different operating modes. Furthermore, the pneumatic wheel device also provides collision and impact protection.

[0018] Furthermore, the installation of a steering drive mechanism eliminates the need for a circular lifeboat hull to turn. The hull's direction of movement can be changed simply by turning the steering drive mechanism in a fixed direction. Using three tapered cylinders and a ball-bearing slide connection, the steering drive mechanism can be retracted and positioned vertically on the hull bottom. This not only allows for operation in shallow waters, but also allows the steering drive mechanism to be lowered, lowering the hull's center of gravity and improving operational stability.

[0019] Furthermore, there are fewer welded parts, with the entire hull and its components primarily connected by bolts or hinges. The cockpit is bolted to the hull bottom and sealed with a watertight seal; the hull bottom and the depth control mechanism are hinged with bolts; and the steering drive mechanism is bolted to the hull bottom and sealed with a watertight seal. This connection method facilitates disassembly and replacement, making it a positive addition to lifeboat maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic structural diagram of the lifeboat of the present invention; Figure 2 This is a schematic structural diagram of a cockpit in a lifeboat of the present invention; Figure 3 Schematic diagram of the structure of the hull of the lifeboat of the present invention; Figure 4 It is a schematic diagram of a part of the structure of the hull of the lifeboat of the present invention; Figure 5 Schematic diagram of the structure of the inflatable wheel mechanism in the lifeboat of the present invention; Figure 6 It is a schematic structural diagram of the deep and shallow driving mechanism of the lifeboat of the present invention; Figure 7 Schematic diagram of the structure of the first hydrofoil device in the lifeboat of the present invention; Figure 8 Schematic diagram of the structure of the steering drive mechanism in the lifeboat of the present invention; Figure 9 is a cross-sectional schematic diagram of the steering drive mechanism in the lifeboat of the present invention; Figure 10 It is a partial structural schematic diagram of the retraction device in the lifeboat of the present invention; Figure 11 It is a partial structural diagram of the deep and shallow driving mechanism of the lifeboat of the present invention; Figure 12 It is a partial structural schematic diagram of the steering drive mechanism in the lifeboat of the present invention; Figure 13 It is a partial structural schematic diagram of the inflatable wheel mechanism in the lifeboat of the present invention; Among them, 100, lifeboat; 1. Cockpit; 2. Hull; 3. Depth drive mechanism; 4. Steering drive mechanism; 11. Protective cover; 12. Door; 13. Seat; 14. Operating table; 15. Bilge bottom; 21. Hull floor; 22. Fixing ring; 23. Inflatable wheel mechanism; 24. Support member; 25. First connecting rod; 26. Groove; 27. First hinge hole; 231, first support rod; 232, second support rod; 233, pneumatic wheel; 234, third driving device; 235, coupling; 236, second rotating shaft; 31. First hydraulic cylinder; 32. Hydraulic rod; 33. Third support rod; 34. Fifth connecting rod; 35. Sixth connecting rod; 36. Second connecting rod; 37. Third connecting rod; 38. Fourth connecting rod; 39. First hydrofoil device; 381. First drive device; 382. First rotating shaft; 391. Hydrofoil; 392. Fairing; 393. Connector; 394. Reversing tail; 395. Driving propeller; 396. Filter cover; 41. Second hydrofoil device; 42. Retraction device; 411. Rotating support rod; 412. Rotating support plate; 413. Rotating rod; 414. Bearing; 415. Second driving device; 416. Driving gear; 417. Driven gear; 421. First tapered cylinder; 422. Second tapered cylinder; 423. Third tapered cylinder; 424. Retraction rope; 425. Rope rotating rod; 426. First ball linear guide; 427. Second ball linear guide. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The purpose of the present invention is to provide a lifeboat to solve the problems existing in the above-mentioned prior art and to improve the flexibility and adaptability of the lifeboat.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1 to 13 As shown, this embodiment provides a lifeboat 100, comprising: Hull 2, hull 2 ​​is circular; Multiple depth drive mechanisms 3 are evenly distributed along the circumference of the hull 2. The depth drive mechanisms 3 include a first bracket, a first hydraulic cylinder 31, and a first hydrofoil device 39. The top of the first bracket is hinged to the hull 2, the cylinder body of the first hydraulic cylinder 31 is hinged to the hull 2, and the free end of the hydraulic rod 32 of the first hydraulic cylinder 31 is hinged to the first bracket. The first hydraulic cylinder 31 can drive the first bracket to rotate relative to the hull 2. The first hydrofoil device 39 is fixedly connected to the first rotating shaft 382, ​​and the first rotating shaft 382 is rotatably connected to the bottom end of the first bracket. The first rotating shaft 382 is horizontal. The bottom end of the first bracket is fixed with a first driving device 381 for driving the first rotating shaft 382 to rotate. The first driving device 381 adopts a driving motor; The steering drive mechanism 4 includes a contraction device 42 and a second hydrofoil device 41. The contraction device 42 includes a first conical cylinder 421, a second conical cylinder 422, a third conical cylinder 423, a contraction rope 424, a rope rotating rod 425, a rotating rod 413, a rotating support plate 412 and a rotating support rod 411. The diameters of the first conical cylinder 421, the second conical cylinder 422 and the third conical cylinder 423 are gradually reduced from top to bottom. The second conical cylinder 422 slides with the first conical cylinder 421, and the third conical cylinder 423 slides with the second conical cylinder 422. The first conical cylinder 421, the second conical cylinder 422 and the third conical cylinder 423 are distributed in sequence from top to bottom. One end of the contraction rope 424 is connected to the bottom end of the third conical cylinder 423. The rope rotating rod 425 is used to wind the contraction rope 424. The rotating rod 413 is connected to the bearing 4 14 is rotatably connected to the bottom end of the third conical cylinder 423, the rotating support plate 412 is fixedly connected to the bottom end of the rotating rod 413, the top of the rotating support rod 411 is fixedly connected to the rotating support plate 412, and a second driving device 415 is fixedly provided on the bearing 414, and a driving gear 416 is fixedly provided on the output shaft of the second driving device 415. A driven gear 417 meshing with the driving gear 416 is fixedly provided on the top of the rotating rod 413. When the second driving device 415 is working, the rotating rod 413 is driven to rotate through the driving gear 416 and the driven gear 417; gear transmission connection, it should be noted that the outer ring of the bearing 414 is fixedly connected to the third conical cylinder 423, and the second driving device 415 is fixedly connected to the annular rib or outer ring of the bearing 414. The outer ring and the annular rib of the bearing 414 are fixed, so the position of the second driving device 415 is also fixed; The first hydrofoil device 39 and the second hydrofoil device 41 both include a fairing 392, hydrofoils 391 installed on both sides of the fairing 392, a fixing device arranged at the rear end of the fairing 392, a driving propeller 395 installed on the fixing device, a filter cover 396 covering the driving propeller 395, a reversing tail wing 394 installed at the rear end of the filter cover 396, and a connecting member 393 fixed to the fairing 392. The connecting member 393 in the first hydrofoil device 39 is rotatably connected to the bottom end of the first bracket, and the connecting member 393 in the second hydrofoil device 41 is fixedly connected to the rotating support rod 411.

[0026] In the optional scheme of this embodiment, it is more preferred that the hull 2 ​​includes a hull floor 21, a fixing ring 22, a support member 24 and several first connecting rods 25, the fixing ring 22 includes a ring-shaped foam ring and a stainless steel layer wrapped on the foam ring, the fixing ring 22 is fixed under the hull floor 21, the support member 24 is cylindrical and coaxial with the fixing ring 22, the support member 24 is fixed to the fixing ring 22 through all the first connecting rods 25, and the first connecting rods 25 are distributed along the circumference of the support member 24.

[0027] In the optional scheme of this embodiment, it is more preferred that the hull 2 ​​also includes multiple inflatable wheel mechanisms 23, the inflatable wheel mechanism 23 includes a first support rod 231, a second support rod 232 and an inflatable wheel 233, the first support rod 231 is horizontal, one end of the first support rod 231 is fixedly connected to the fixed ring 22, one end of the second support rod 232 is fixedly connected to the second rotating shaft 236, the second rotating shaft 236 is rotatably connected to the other end of the first support rod 231, the inflatable wheel 233 is rotatably installed on the other end of the second support rod 232, and a third driving device 234 is fixedly provided on the first support rod 231, the third driving device 234 is used to drive the second rotating shaft 236 to rotate, the third driving device 234 adopts a motor, and the output shaft of the third driving device 234 is connected to one end of the second rotating shaft 236 through a coupling 235.

[0028] In an optional solution of this embodiment, it is more preferred that the first bracket includes a third support rod 33, a second connecting rod 36, a third connecting rod 37, and a fourth connecting rod 38, which are connected in sequence. The third support rod 33 is rotatably engaged with at least two first connecting rods 25. The second connecting rod 36 is perpendicular to the third support rod 33. The free end of the hydraulic rod 32 of the first hydraulic cylinder 31 is hingedly connected to the second connecting rod 36. The connecting member 393 in the first hydrofoil device 39 is rotatably connected to the fourth connecting rod 38. The first hydraulic cylinder 31 is fixedly connected to the fifth connecting rod 34, which is rotatably engaged with the first hinge hole 27 in the fixing ring 22. The second connecting rod 36 is fixedly connected to the sixth connecting rod 35. The hydraulic rod 32 of the first hydraulic cylinder 31 is indirectly hingedly connected to the second connecting rod 36 by being hingedly connected to the sixth connecting rod 35.

[0029] Among the optional schemes of this embodiment, it is more preferred to further include a cockpit 1 arranged above the hull 2, the cockpit 1 includes a protective cover 11 and a cabin bottom 15, the cabin bottom 15 is fixedly connected to the hull floor 21, the material of the protective cover 11 is transparent plastic, the protective cover 11 is hemispherical, the bottom of the protective cover 11 is sealed with the cabin bottom 15, an operating table 14 and multiple seats 13 are provided in the cockpit 1, and a hatch 12 is provided on the protective cover 11.

[0030] In the optional scheme of this embodiment, it is more preferred that the contact surface between the first tapered cylinder 421 and the second tapered cylinder 422 is installed with a first ball linear guide 426, the guide rail of the first ball linear guide 426 is fixedly connected to the inner wall of the first tapered cylinder 421, and the slider of the first ball linear guide 426 is fixedly connected to the second tapered cylinder 422; the contact surface between the second tapered cylinder 422 and the third tapered cylinder 423 is installed with a second ball linear guide 427, the guide rail of the second ball linear guide 427 is fixedly connected to the inner wall of the second tapered cylinder 422, and the slider of the second ball linear guide 427 is fixedly connected to the third tapered cylinder 423; the minimum diameter of the first tapered cylinder 421 is greater than the maximum diameter of the second tapered cylinder 422, and the minimum diameter of the second tapered cylinder 422 is greater than the maximum diameter of the third tapered cylinder 423.

[0031] In an optional solution of this embodiment, it is more preferred that the operating console 14 is disposed in the center of the cockpit 1 , and all seats 13 are arranged in a circular array around the operating console 14 .

[0032] In the optional solution of this embodiment, it is more preferred that there are four hatches 12 , and all hatches 12 are evenly distributed along the circumference of the protective cover 11 .

[0033] In an optional solution of this embodiment, more preferably, the fixing ring 22 is provided with a groove 26 corresponding to the first connecting rod 25 , and the first connecting rod 25 is partially located in the corresponding groove 26 .

[0034] The working principle of the lifeboat 100 of this embodiment is as follows: (1) Working status in shallow water The steering drive mechanism 4 contracts: the rope turning rod 425 rolls up the contraction rope 424 under the action of the motor, and the third conical tube 423 and the second conical tube 422 gather and contract upward with the assistance of the balls in the slide. The hydrofoil 391 driving device drives it to be lifted upward, and the entire steering drive mechanism 4 is in a contracted state.

[0035] The depth driving mechanism 3 is in standby mode: the depth driving mechanism 3 is retracted, the driving connecting rod coincides with the horizontal plane at 0°, and the deflector 392 of the first hydrofoil device 39 is tilted upward. At this time, the entire depth driving mechanism 3 is in standby non-working state.

[0036] Inflatable wheel mechanism 23: The second support rod 232 of the inflatable wheel 233 is rotated coaxially with the first support rod 231 of the inflatable wheel 233, making the inflatable wheel 233 perpendicular to the horizontal plane. In shallow water operation, the retracted steering drive mechanism 4 serves as a directional drive device, and the inflatable wheel 233 serves as an auxiliary drive device, allowing the lifeboat 100 to move forward and operate normally, achieving the purpose of rescuing people from the water.

[0037] (2) Working status in deep water area The steering drive mechanism 4 is lowered: the rope turning rod 425 places the contraction rope 424 downward under the action of the motor, and the third conical cylinder 423 and the second conical cylinder 422 spread downward with the assistance of the balls in the slide. The hydrofoil 391 driving device drives it downward, and the entire steering drive mechanism 4 is in the lowered state.

[0038] Part of the depth drive mechanism 3 is working: the depth drive mechanism 3 is retracted, the driving connecting rod coincides with the horizontal plane at 0°, and the deflector 392 of the second hydrofoil device 41 is tilted upward (it is placed in the direction of movement only, and the hydrofoil 391 driving devices in other directions are in the retracted state). At this time, three of the entire depth drive mechanism 3 are in the standby non-working state, and one is in the working state; Inflatable wheel 233 assists in flotation: The second support member 24 connected to the inflatable wheel 233 rotates at a 90° angle to the first support member 24, keeping the inflatable wheel 233 horizontal. In deep-water operation, the retracted steering drive mechanism 4 serves as the orientation and steering drive mechanism 4, the inflatable wheel 233 serves as the auxiliary flotation device, and the depth control mechanism 3 serves as the depth control tool, allowing the lifeboat 100 to move forward and operate normally, achieving the purpose of rescuing people from the water.

[0039] (3) Working principle of depth drive mechanism 3 Guidance adjustment: Use one of the depth driving mechanisms 3 as the depth guide device. When the direction of the steering device is fixed, the hydrofoil 391 device can be rotated around the hydrofoil 391 connecting rod to adjust the movement direction of the hydrofoil 391 and the guide device, so that the lifeboat 100 can move above or below the water, achieving the effect of simultaneous search and rescue underwater and above water.

[0040] Quick rescue: If the direction needs to be changed, the depth drive device of the corresponding direction can be directly started, eliminating the need to turn the entire lifeboat 100 hull 2 ​​and saving rescue time.

[0041] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A lifeboat, It is characterized in that include: A hull (2), wherein the hull (2) is circular; a plurality of depth driving mechanisms (3) uniformly distributed along the circumference of the hull (2), the depth driving mechanisms (3) comprising a first bracket, a first hydraulic cylinder (31), and a first hydrofoil device (39), the top end of the first bracket being hinged to the hull (2), the cylinder body of the first hydraulic cylinder (31) being hinged to the hull (2), the free end of the hydraulic rod (32) of the first hydraulic cylinder (31) being hinged to the first bracket, the first hydraulic cylinder (31) being capable of driving the first bracket to rotate relative to the hull (2), the first hydrofoil device (39) being fixedly connected to a first rotating shaft (382), the first rotating shaft (382) being rotatably connected to the bottom end of the first bracket, the first rotating shaft (382) being horizontal, and the bottom end of the first bracket being fixedly provided with a first driving device (381) for driving the first rotating shaft (382) to rotate; A steering drive mechanism (4), the steering drive mechanism (4) comprising a contraction device (42) and a second hydrofoil device (41), the contraction device (42) comprising a first conical cylinder (421), a second conical cylinder (422), a third conical cylinder (423), a contraction rope (424), a rope rotating rod (425), a rotating rod (413), a rotating support plate (412) and a rotating support rod (411), the diameters of the first conical cylinder (421), the second conical cylinder (422) and the third conical cylinder (423) all gradually decrease from top to bottom, the second conical cylinder (422) and the first conical cylinder (421) are slidably matched, the third conical cylinder (423) and the second conical cylinder (422) are slidably matched, and the first conical cylinder (421) and the third conical cylinder (423) are slidably matched. 421), the second conical cylinder (422) and the third conical cylinder (423) are sequentially arranged from top to bottom, one end of the contraction rope (424) is connected to the bottom end of the third conical cylinder (423), the rope rotating rod (425) is used to wind the contraction rope (424), the rotating rod (413) is rotatably connected to the bottom end of the third conical cylinder (423) via a bearing (414), the rotating support plate (412) is fixedly connected to the bottom end of the rotating rod (413), the top end of the rotating support rod (411) is fixedly connected to the rotating support plate (412), the bearing (414) is fixedly provided with a second driving device (415), and the output shaft of the second driving device (415) is connected to the rotating rod (413) by gear transmission; The first hydrofoil device (39) and the second hydrofoil device (41) both comprise a fairing (392), hydrofoils (391) mounted on both sides of the fairing (392), a fixing device arranged at the rear end of the fairing (392), a driving propeller (395) mounted on the fixing device, a filter cover (396) covering the driving propeller (395), a reversing tail wing (394) mounted at the rear end of the filter cover (396), and a connecting piece (393) fixedly mounted on the fairing (392); the connecting piece (393) in the first hydrofoil device (39) is rotatably connected to the bottom end of the first bracket, and the connecting piece (393) in the second hydrofoil device (41) is fixedly connected to the rotating support rod (411).

2. The lifeboat according to claim 1, Features: The hull (2) comprises a hull floor (21), a fixing ring (22), a support member (24) and a plurality of first connecting rods (25); the fixing ring (22) comprises an annular foam ring and a stainless steel layer wrapped on the foam ring; the fixing ring (22) is fixedly arranged below the hull floor (21); the support member (24) is cylindrical and coaxial with the fixing ring (22); the support member (24) is fixedly connected to the fixing ring (22) via all of the first connecting rods (25); and the first connecting rods (25) are distributed along the circumference of the support member (24).

3. The lifeboat according to claim 2, Features: The hull (2) further comprises a plurality of inflatable wheel mechanisms (23), the inflatable wheel mechanisms (23) comprising a first support rod (231), a second support rod (232) and an inflatable wheel (233), the first support rod (231) being horizontal, one end of the first support rod (231) being fixedly connected to the fixing ring (22), one end of the second support rod (232) being fixedly connected to a second rotating shaft (236), the second rotating shaft (236) being rotatably connected to the other end of the first support rod (231), the inflatable wheel (233) being rotatably mounted on the other end of the second support rod (232), the first support rod (231) being fixedly provided with a third driving device (234), the third driving device (234) being used to drive the second rotating shaft (236) to rotate.

4. The lifeboat according to claim 2, Features: The first bracket comprises a third support rod (33), a second connecting rod (36), a third connecting rod (37) and a fourth connecting rod (38) which are connected in sequence, the third support rod (33) is rotatably matched with at least two of the first connecting rods (25), the second connecting rod (36) is perpendicular to the third support rod (33), the free end of the hydraulic rod (32) of the first hydraulic cylinder (31) is hinged to the second connecting rod (36), and the connecting piece (393) in the first hydrofoil device (39) is rotatably connected to the fourth connecting rod (38).

5. The lifeboat according to claim 2, Features: The invention also comprises a cockpit (1) arranged above the hull (2), the cockpit (1) comprising a protective cover (11) and a cabin bottom (15), the cabin bottom (15) being fixedly connected to the hull floor (21), the material of the protective cover (11) being transparent plastic, the protective cover (11) being hemispherical, the bottom of the protective cover (11) being sealedly connected to the cabin bottom (15), an operating table (14) and a plurality of seats (13) being arranged in the cockpit (1), and a hatch (12) being arranged on the protective cover (11).

6. The lifeboat according to claim 1, Features: A first ball linear guide (426) is installed on the contact surface between the first tapered cylinder (421) and the second tapered cylinder (422); the guide rail of the first ball linear guide (426) is fixedly connected to the inner wall of the first tapered cylinder (421), and the slider of the first ball linear guide (426) is fixedly connected to the second tapered cylinder (422); a second ball linear guide (427) is installed on the contact surface between the second tapered cylinder (422) and the third tapered cylinder (423); the guide rail of the second ball linear guide (427) is fixedly connected to the inner wall of the second tapered cylinder (422), and the slider of the second ball linear guide (427) is fixedly connected to the third tapered cylinder (423); the minimum diameter of the first tapered cylinder (421) is greater than the maximum diameter of the second tapered cylinder (422), and the minimum diameter of the second tapered cylinder (422) is greater than the maximum diameter of the third tapered cylinder (423).

7. The lifeboat according to claim 5, Features: The operating table (14) is arranged in the center of the cockpit (1), and all the seats (13) are arranged in a circular array around the operating table (14).

8. The lifeboat according to claim 5, Features: There are four hatches (12), and all of the hatches (12) are evenly distributed along the circumference of the protective cover (11).

9. The lifeboat according to claim 2, Features: The fixing ring (22) is provided with a groove (26) corresponding to the first connecting rod (25), and a portion of the first connecting rod (25) is located in the corresponding groove (26).

Images