A lifeboat

Abstract

The invention discloses a lifeboat, which relates to the technical field of aquatic lifesaving equipment. The hull is circular and includes a plurality of depth driving mechanisms, a steering driving mechanism, and the like. The depth driving mechanism is composed of a first bracket, a first hydraulic cylinder, and a first hydrofoil device, and can adjust the rise and dive of the hull. The steering driving mechanism includes a retraction device and a second hydrofoil device, which realize up and down retraction through the cooperation of a conical cylinder. The first hydrofoil device and the second hydrofoil device both have a fairing, a hydrofoil, a driving propeller, and the like. The hull also includes a fixing ring, an inflatable wheel mechanism, and a cockpit. In shallow waters, the steering driving mechanism is retracted, and the inflatable wheel assists in driving; in deep waters, the steering driving mechanism is lowered, part of the depth driving mechanism works, and the inflatable wheel assists in floating. The lifeboat has strong flexibility and adaptability, few welded and fixed parts, and is convenient for disassembly and replacement. It can realize the rescue of people who fall into the water on the water surface and improve 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] The lifeboat is the most important life-saving tool on board. It is a special lifeboat used by ship crew members to save themselves or rescue people in distress at sea. An air box is installed under the seat plate inside the boat to ensure that the boat will not sink even if it is filled with water. The boat is equipped with food, drinking water, first aid medicines, accessories, communication equipment, and propulsion equipment such as sails, oars, and poles. Some are also equipped with motorized propulsion devices. Lifeboats can be divided into wood, steel, aluminum alloy, fiberglass and other types according to the construction materials. Fiberglass lifeboats are easy to build and maintain and are currently the most commonly used.

[0003] Lifeboats can be divided into open, fully enclosed and partially enclosed types according to their structural forms. When an open lifeboat encounters wind and waves above level 4-5, the passengers will be attacked by seawater, and the passengers will be threatened with death in low temperatures or under the sun. Lifeboats are mainly divided into the following categories: Open lifeboats are lifeboats without a roof device. Partially enclosed lifeboats are mainly arranged on both sides of the ship. The lifeboat is turned out to the side of the ship by the davit as shown in the figure, and then lowered to the water surface. Davit-type fully enclosed lifeboats are mainly arranged on both sides of the ship. The lifeboat is turned out to the side of the ship by the davit as shown in the figure, and then lowered to the water surface. Free-fall fully enclosed fiberglass lifeboats, this type of lifeboat is mainly arranged at the stern of the ship. There are two ways to land the lifeboat, one is to slide directly into the water along the slide, and the other is to turn the lifeboat out by the davit and throw it into the water surface.

[0004] Most of the current lifeboats are traditional, and traditional boats have certain limitations in search and rescue: slow turning, low speed, inflexible movement, poor adaptability to deep and shallow water, etc. These limitations have a certain control on the search and rescue work, increasing the danger of people falling 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:

[0007] The present invention provides a lifeboat, comprising:

[0008] A hull, wherein the hull is circular;

[0009] 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 a first driving device for driving the first rotating shaft to rotate being fixedly provided at the bottom end of the first bracket;

[0010] The steering drive mechanism comprises a contraction device and a second hydrofoil device, the contraction device comprises a first conical cylinder, a second conical cylinder, a third conical cylinder, a contraction 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 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 contraction rope is connected to the bottom end of the third conical cylinder, the rope rotating rod is used to wind the contraction 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 end of the rotating support rod is fixedly connected to the rotating support plate, a second driving device is fixedly arranged on the bearing, and an output shaft of the second driving device is connected to the rotating rod gear transmission;

[0011] 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 covered on the driving propeller, a reversing tail installed at the rear end of the filter cover, and a connecting piece fixed on 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.

[0012] Preferably, the hull includes a hull floor, a fixing ring, a support member and a plurality of 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 below the hull floor, the support member is cylindrical and coaxial with the fixing ring, the support member is fixedly connected to the fixing ring through all of the first connecting rods, and the first connecting rods are distributed along the circumference of the support member.

[0013] Preferably, the hull also includes a plurality of inflatable wheel mechanisms, the inflatable wheel mechanisms including 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 fixedly provided on the first support rod, and the third driving device is used to drive the second rotating shaft to rotate.

[0014] 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.

[0015] Preferably, it also includes a cockpit arranged above the hull, the cockpit includes a protective cover and a cabin bottom, the cabin bottom is fixedly connected to the hull floor, the material of the protective cover is transparent plastic, the protective cover is hemispherical, the bottom of the protective cover is sealed to the cabin bottom, an operating table and a plurality of seats are provided in the cockpit, and a hatch is provided on the protective cover.

[0016] Preferably, a first ball linear guide is installed on the contact surface between the first tapered cylinder and the second tapered cylinder, the guide rail of the first ball linear guide is fixedly connected to the inner wall of the first tapered cylinder, and the slider of the first ball linear guide is fixedly connected to the second tapered cylinder; a second ball linear guide is installed on the contact surface between the second tapered cylinder and the third tapered cylinder, the guide rail of the second ball linear guide is fixedly connected to the inner wall of the second tapered cylinder, and the slider of the second ball linear guide is fixedly connected to the third tapered cylinder; the minimum diameter of the first tapered cylinder is greater than the maximum diameter of the second tapered cylinder, and the minimum diameter of the second tapered cylinder is greater than the maximum diameter of the third tapered cylinder.

[0017] 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.

[0018] Preferably, there are four doors, and all of the doors are evenly distributed along the circumference of the protective cover.

[0019] 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.

[0020] Compared with the prior art, the present invention has achieved the following technical effects:

[0021] 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, simply the depth driving mechanism in the corresponding direction is turned on, and the other depth driving mechanisms are in standby state. The ascent and descent of the hull can be adjusted in conjunction with the steering driving mechanism 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 increase the movement speed of the hydrofoil, thereby making the hull leave the water surface and improving the movement performance of the lifeboat.

[0022] Furthermore, the lifeboat has a circular structure, which is better than traditional boats in terms of isotropy of the incoming flow. There are hatches in four directions, which can complete the rescue of people falling into the water in all directions at the same time. The use of a protective cover can prevent the rescued people and rescuers from secondary floods and incoming flow.

[0023] Furthermore, in shallow water working areas, the inflatable wheel can be used as a floating power auxiliary device to promote the movement of the hull; in deep water areas, it can be used as a balancing floating device for the hull. The second support member of the inflatable wheel is connected to the shaft hole of the first support member of the inflatable wheel and can rotate in the vertical direction to achieve switching between different working states. On the other hand, the inflatable wheel device also plays a role in preventing collision and impact.

[0024] Furthermore, the installation of the steering drive mechanism eliminates the need for a round lifeboat hull to turn, and the direction of movement of the hull can be changed by directly using the steering drive mechanism to drive in a fixed direction. The use of three conical cylinders in conjunction with the slideway ball connection allows the steering drive mechanism to be retracted and placed up and down at the bottom of the hull. On the one hand, it can realize the working drive in shallow water areas, and on the other hand, the steering drive mechanism can be lowered to reduce the center of gravity of the entire hull and improve the stability of the hull during the working process.

[0025] Furthermore, there are fewer parts that need to be welded and fixed, and the entire hull and its components are mainly connected or hinged by bolts. The cockpit is connected to the bottom of the hull by bolts and sealed with a watertight seal ring; the bottom of the hull and the depth drive mechanism are hinged with bolts; the steering drive mechanism is connected to the bottom of the hull by bolts and sealed with a watertight seal, etc. This connection method is convenient for disassembly and replacement, and plays a positive role in the maintenance of lifeboats. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. 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 creative work.

[0027] Figure 1 It is a schematic structural diagram of the lifeboat of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the cockpit in the lifeboat of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the hull of the lifeboat of the present invention;

[0030] Figure 4 It is a schematic diagram of a part of the structure of the hull of the lifeboat of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the inflatable wheel mechanism in the lifeboat of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the deep and shallow driving mechanism in the lifeboat of the present invention;

[0033] Figure 7 It is a structural schematic diagram of the first hydrofoil device in the lifeboat of the present invention;

[0034] Figure 8 It is a structural schematic diagram of the steering drive mechanism in the lifeboat of the present invention;

[0035] Fig. 9 It is a cross-sectional schematic diagram of the steering drive mechanism in the lifeboat of the present invention;

[0036] Fig.10 It is a partial structural schematic diagram of the retraction device in the lifeboat of the present invention;

[0037] Fig.11 It is a partial structural schematic diagram of the depth driving mechanism in the lifeboat of the present invention;

[0038] Fig.12 It is a partial structural schematic diagram of the steering drive mechanism in the lifeboat of the present invention;

[0039] Fig.13 It is a partial structural schematic diagram of the inflatable wheel mechanism in the lifeboat of the present invention;

[0040] Among them, 100, lifeboat;

[0041] 1. Cockpit; 2. Hull; 3. Depth drive mechanism; 4. Steering drive mechanism;

[0042] 11. Protective cover; 12. Cabin door; 13. Seat; 14. Operating table; 15. Cabin bottom;

[0043] 21. hull floor; 22. fixing ring; 23. inflatable wheel mechanism; 24. support member; 25. first connecting rod; 26. groove; 27. first hinge hole;

[0044] 231, first support rod; 232, second support rod; 233, pneumatic wheel; 234, third driving device; 235, coupling; 236, second rotating shaft;

[0045] 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 driving device; 382. first rotating shaft;

[0046] 391, hydrofoil; 392, fairing; 393, connector; 394, reversing tail; 395, driving propeller; 396, filter cover;

[0047] 41. second hydrofoil device; 42. retraction device;

[0048] 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 conical cylinder; 422. Second conical cylinder; 423. Third conical cylinder; 424. Retracting rope; 425. Rope rotating rod; 426. First ball linear guide; 427. Second ball linear guide. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0050] 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.

[0051] 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.

[0052] like Figures 1 to 13 As shown, this embodiment provides a lifeboat 100, comprising:

[0053] The hull 2 ​​is circular;

[0054] A plurality of depth driving mechanisms 3 uniformly distributed along the circumference of the hull 2, the depth driving mechanism 3 comprises a first bracket, a first hydraulic cylinder 31, and a first hydrofoil device 39, the top end 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, 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, ​​the first rotating shaft 382 is rotatably connected to the bottom end of the first bracket, the first rotating shaft 382 is horizontal, and the bottom end of the first bracket is fixedly provided with a first driving device 381 for driving the first rotating shaft 382 to rotate, and the first driving device 381 adopts a driving motor;

[0055] 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 is slidably matched with the first conical cylinder 421, and the third conical cylinder 423 is slidably matched with the second conical cylinder 422. The first conical cylinder 421, the second conical cylinder 422 and the third conical cylinder 423 are sequentially distributed 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 first conical cylinder 421 through 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, a second driving device 415 is fixedly provided on the bearing 414, 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, and the second driving device 415 drives the rotating rod 413 to rotate through the driving gear 416 and the driven gear 417 when working; 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;

[0056] 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 on 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.

[0057] 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 a plurality of first connecting rods 25, the fixing ring 22 includes an annular foam ring and a stainless steel layer wrapped on the foam ring, the fixing ring 22 is fixedly arranged under 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 through all the first connecting rods 25, and the first connecting rods 25 are distributed along the circumference of the support member 24.

[0058] In the optional scheme of this embodiment, it is more preferred that the hull 2 ​​also includes a plurality of inflatable wheel mechanisms 23, the inflatable wheel mechanisms 23 include 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, 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.

[0059] In the optional scheme 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 connected in sequence, the third support rod 33 is rotatably matched 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 hinged with the second connecting rod 36, and the connecting piece 393 in the first hydrofoil device 39 is rotatably connected with the fourth connecting rod 38. The first hydraulic cylinder 31 is fixedly connected with the fifth connecting rod 34, the fifth connecting rod 34 is rotatably matched with the first hinge hole 27 on the fixing ring 22, the second connecting rod 36 is fixedly connected with the sixth connecting rod 35, and the hydraulic rod 32 of the first hydraulic cylinder 31 is hinged with the sixth connecting rod 35, thereby indirectly realizing the hinge between the hydraulic rod 32 and the second connecting rod 36.

[0060] 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 and connected to the cabin bottom 15, an operating table 14 and a plurality of seats 13 are arranged in the cockpit 1, and a hatch 12 is arranged on the protective cover 11.

[0061] 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.

[0062] In an optional solution of the present embodiment, it is more preferred that the operating console 14 is disposed in the center of the cockpit 1 , and all the seats 13 are arranged in a circular array around the operating console 14 .

[0063] In the optional scheme of this embodiment, it is more preferred that there are four doors 12 , and all the doors 12 are evenly distributed along the circumference of the protective cover 11 .

[0064] In an optional solution of the present embodiment, more preferably, 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 .

[0065] The working principle of the lifeboat 100 of this embodiment is as follows:

[0066] (1) Working status in shallow water

[0067] 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 slideway, and the hydrofoil 391 driving device drives it to be lifted upward, and the entire steering drive mechanism 4 is in a contracted state.

[0068] The depth driving mechanism 3 is in standby state: 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.

[0069] Inflatable wheel mechanism 23: The second support rod 232 of the inflatable wheel 233 connected to the inflatable wheel 233 rotates coaxially with the first support rod 231 of the inflatable wheel 233, so that the inflatable wheel 233 is perpendicular to the horizontal plane. In the shallow water working state, the retracted steering drive mechanism 4 is used as a directional drive device, and the inflatable wheel 233 is used as an auxiliary drive device, so that the lifeboat 100 can move forward and work normally, achieving the purpose of rescuing people who fall into the water.

[0070] (2) Working status in deep water area

[0071] The steering drive mechanism 4 is lowered: the rope rotating 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 diffuse downward with the assistance of the balls in the slideway, and the hydrofoil 391 driving device drives them downward, and the entire steering drive mechanism 4 is in a lowered state.

[0072] Part of the depth driving mechanism 3 works: the depth driving 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 tilts upward (it is placed in the only direction of movement, and the hydrofoil 391 driving device in other directions is in a retracted state). At this time, three of the entire depth driving mechanism 3 are in a standby non-working state, and one is in a working state;

[0073] The pneumatic wheel 233 assists in floating: the second support member 24 of the pneumatic wheel 233 connected to the pneumatic wheel 233 rotates to form an axis at an angle of 90° with the first support member 24 of the pneumatic wheel 233, so that the pneumatic wheel 233 is horizontal to the horizontal plane. In the deep water working state, the retracted steering drive mechanism 4 is used as the orientation and steering drive mechanism 4, the pneumatic wheel 233 is used as an auxiliary floating device, and the depth driving mechanism 3 is used as a depth driving tool, so that the lifeboat 100 can move forward and work normally, achieving the purpose of rescuing people who fall into the water.

[0074] (3) Working principle of depth drive mechanism 3

[0075] Guidance adjustment: Use one of the depth driving mechanisms 3 as a 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 water or underwater, achieving the effect of simultaneous search and rescue underwater and above water.

[0076] 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, thus saving rescue time.

[0077] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A lifeboat, 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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).

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