CN118182723A - Lifeboat with lifting device - Google Patents

Abstract

The invention discloses a lifeboat with a lifting device, and belongs to the technical field of lifeboats. The existing lifeboats need to leave staff on the ship body in the process of lowering, which is inconvenient for the staff on the cargo ship to safely withdraw, and meanwhile, the lifeboats can shake greatly in the process of lowering and rising. Comprises a boat body, a hanging ring, a fixing frame and the like; four hanging rings are fixedly connected to the top of the boat body, and four pairs of fixing frames are fixedly connected to the periphery of the boat body. Staff control waterproof motor starts, and waterproof motor passes through the axis of rotation release steel cable, and wherein the gyro wheel can laminate with the cargo ship for the hull can descend along the cargo ship, reduces the rocking of hull decline in-process, and after the hull contacted the sea, the steel cable also breaks away from the contact with the restriction lock, and the staff drive lifeboat keeps away from the cargo ship, through this kind of operation mode, need not to stop a batch of staff on the cargo ship, and last batch of staff safety withdraws on the cargo ship of being convenient for.

Description

Lifeboat with lifting device

Technical Field

The invention relates to the field of underwater lifesaving, in particular to a lifeboat with a lifting device.

Background

The cargo ship for long voyage is generally provided with a lifeboat which is used by a shipman, and the lifeboat can be used for self-rescue when encountering risks such as reef and the like. Most of the existing life boats can only be retracted and released through lifting devices on the cargo ships, so that workers are required to be left on the ship body in the process of lowering the life boats, the last batch of workers on the cargo ships cannot be conveniently retracted safely, meanwhile, when the life boats are retracted and released through the lifting devices on the cargo ships, the life boats generate larger shaking in the process of lowering and rising due to sea wind and the like, and the danger coefficient of the life boats is improved when the life boats are lowered and raised.

Disclosure of Invention

In order to overcome the defects in the background art, the invention provides a lifeboat with a lifting device, which is provided with a lifting device, is convenient for the last batch of workers on a cargo ship to safely withdraw, and keeps stable in the descending and ascending processes of the lifeboat.

The technical scheme is as follows: the utility model provides a lifeboat with elevating gear, including the hull, the link, the mount, the gyro wheel, the mounting bracket, the motor frame, waterproof motor, the guide frame, a compression spring, elevating system and protection machanism, four links of top fixedly connected with of hull, four pairs of mounts of fixedly connected with of hull all around, all rotationally be connected with the gyro wheel on every mount, the top fixedly connected with of hull a plurality of guide frame, two mounting brackets and two motor frames are connected with respectively on a plurality of guide frame, motor frame and mounting bracket fixed connection of same one side, a plurality of guide frame respectively with two mounting brackets and two motor frames between all be connected with compression spring, equal fixedly connected with waterproof motor in two motor frames, be equipped with elevating system on the hull, elevating system is used for driving the lift of hull, be equipped with protection machanism on the hull, protection machanism is used for protecting the gyro wheel from being corroded.

In a preferred embodiment of the invention, the lifting mechanism comprises a rotating shaft, a limiting lock, a steel cable, piston cylinders and piston rods, wherein the rotating shaft is rotatably connected to the mounting frame, the limiting lock is fixedly connected to the rotating shaft, the steel cable is wound on the rotating shaft, the limiting lock is in contact with the steel cable, the top of the boat body is fixedly connected with four piston cylinders, the piston rods are respectively positioned in each piston cylinder, and the piston cylinders are in sliding connection with the piston rods.

In a preferred embodiment of the invention, the restraining lock is an electric lock.

In a preferred embodiment of the invention, the protection mechanism comprises a liquid guide rod, fixing seats, a protective shell, rotating blocks and sealing cylinders, wherein the liquid guide rod is fixedly connected to the two piston cylinders in front of the boat body respectively, the liquid guide rod is fixedly connected to the two piston cylinders in back of the boat body respectively, the piston cylinders are respectively communicated with the liquid guide rod and the liquid guide rod, four pairs of fixing seats are fixedly connected to the periphery of the boat body, each fixing seat is arranged in the fixing seat, two protective shells are rotatably connected to each fixing seat, the rotating blocks are fixedly connected to each protective shell, the sealing cylinders are rotatably connected to each rotating block, the sealing cylinders close to the front of the boat body are respectively fixedly connected with the two liquid guide rods, the liquid guide rods are communicated with the sealing cylinders, and the sealing cylinders close to the back of the boat body are respectively fixedly connected with the two liquid guide rods, and the liquid guide rods are communicated with the sealing cylinders.

In a preferred embodiment of the invention, the rollers are located in two protective shells which reduce seawater erosion of the mount 31 and rollers 32.

In a preferred embodiment of the invention, the device further comprises a lubrication mechanism, wherein the lubrication mechanism comprises a protection cylinder, a push rod, a pull rod, a movable frame, a compression spring and a shell, the protection cylinder is fixedly connected to each sealing cylinder, the push rod is connected to the fixed base in a sliding manner, the pull rod is fixedly connected to the push rod, the movable frame is fixedly connected to the pull rod, the compression spring is connected between the movable frame and the sealing cylinders, part of the movable frame and the compression spring are wrapped by the protection cylinder, the shell is fixedly connected to the fixed frame, the shell is connected with the push rod in a sliding manner, and the shell is communicated with the fixed frame.

In a preferred embodiment of the present invention, the upper portion of the fixing frame is provided with a through hole, the housing is communicated with the through hole of the fixing frame, the shaft body of the roller is contacted with the through hole of the fixing frame, and the housing is used for accommodating lubricating oil.

In a preferred embodiment of the invention, the boat further comprises a guide mechanism, wherein the guide mechanism comprises a pulling frame, guide rings, guide rods, a rotating rod and a rotating rod, the top of the boat body is fixedly connected with two pulling frames, each mounting frame is fixedly connected with one guide ring, each guide ring is fixedly connected with two guide rods, one guide rod is fixedly connected with the rotating rod, the other guide rod is fixedly connected with the rotating rod, the rotating rod is rotatably connected with the rotating rod, and the rotating rod is slidably connected with the pulling frames.

In a preferred embodiment of the invention, the guide rod is stainless steel.

In a preferred embodiment of the invention, the boat further comprises a cushion pad, and the cushion pads are fixedly connected to the two sides of the boat body.

Compared with the prior art, the invention has the following advantages: 1. other staff releases the locking of the limit lock on the cargo ship and the hanging ring, then the ship body moves downwards under the action of gravity, the installation frame, the motor frame, the waterproof motor and the piston rod are pulled by the steel cable, the guide frame is contacted with the installation frame and the motor frame, hydraulic oil in the sealing cylinder can be extruded along the liquid guide rod and the guide rod by the downward movement of the sealing cylinder, the extruded hydraulic oil can push the rotating block and the protective shell to rotate, the middle fixing frame and the idler wheel are exposed by the rotation of the protective shell, finally the staff controls the waterproof motor to start, the waterproof motor starts to drive the rotating shaft to rotate, the rotating shaft rotates to release the steel cable, so that the ship body slowly descends, the idler wheel at one side of the ship body contacts with the side wall of the cargo ship as much as possible, the side wall of the ship body and the idler wheel are guided, and large shaking of the ship body is reduced as much as possible, and the ship body is stably descended; after the hull contacts the sea, the steel cable is released completely, the waterproof motor is closed by a worker, the limiting lock is opened, the pressure spring is reset, the piston rod is reset under the drive of the pressure spring, hydraulic oil flows back by the reset of the piston rod, the rotating block and the protective shell are reset by the return of the hydraulic oil, the corrosion of sea water to the fixing frame and the roller is reduced, the worker drives the lifeboat to be far away from the cargo ship, and in the operation mode, a batch of workers do not need to stay on the cargo ship, so that the last batch of workers on the cargo ship can be safely withdrawn; the steel cable is continuously rolled to enable the boat body to be close to the rescue boat, the rollers are in contact with the rescue boat, the boat body integrally moves upwards along the outer wall of the rescue boat, after the boat body moves by a certain height, a worker closes the waterproof motor, the steel cable penetrates through the hanging ring to fix the rescue boat on the rescue boat, and the rescue boat can be lifted through the power of the rescue boat and can be stored on most boats.

2. The protective housing rotates and can extrude the pulling rod and make the pulling rod remove, and the pulling rod removes and can drive the catch bar and remove the frame and compress spring compression, and the catch bar can extrude the lubricating oil in the casing, and lubricating oil gets into between mount and the gyro wheel for the gyro wheel can roll more smoothly, makes the life-saving boat more stable in going up and down.

3. The mounting bracket removes and can drives guide ring, guide arm, dwang and rotary rod and remove, and dwang and rotary rod remove and can be pulled the frame spacing, and dwang and rotary rod rotate at the in-process that removes, and dwang and rotary rod rotate and can drive two guide arms and rotate, and two guide arms rotate and can spacing the steel cable, reduce the friction of steel cable to the hull at the lift process for the life-saving ship can rise better.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic partial perspective view of a first embodiment of the present invention.

Fig. 3 is a schematic partial perspective view of a second embodiment of the present invention.

Fig. 4 is a schematic cross-sectional perspective view of the piston cylinder of the present invention.

Fig. 5 is a schematic partial perspective view of a third embodiment of the present invention.

Fig. 6 is a schematic perspective view of the fixing frame, the roller and the fixing base of the present invention.

Fig. 7 is a schematic view showing a first partial perspective of the protection mechanism and the lubrication mechanism of the present invention.

Fig. 8 is a schematic view of a second partial perspective of the protection mechanism and lubrication mechanism of the present invention.

Fig. 9 is a schematic partial perspective view of the lubrication mechanism of the present invention.

Fig. 10 is a schematic cross-sectional perspective view of the protection and lubrication mechanisms of the present invention.

Fig. 11 is a schematic view showing a first partial perspective structure of the guide mechanism of the present invention.

Fig. 12 is a schematic view of a second partial perspective of the guide mechanism of the present invention.

Wherein the above figures include the following reference numerals: 1. hull, 2, hanging ring, 31, fixing frame, 32, roller, 41, mounting frame, 42, motor frame, 43, waterproof motor, 401, guide frame, 402, pressure spring, 51, rotation shaft, 53, limit lock, 54, steel cable, 55, piston cylinder, 56, piston rod, 61, liquid guide rod, 62, guide rod, 63, fixing seat, 64, protective shell, 65, rotating block, 66, sealing cylinder, 71, protective cylinder, 72, push rod, 73, pull rod, 74, moving frame, 75, compression spring, 76, shell, 81, pull frame, 82, guide ring, 83, guide rod, 84, rotating rod, 841, rotating rod, 9, cushion.

Detailed Description

Although the invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the invention. Those of ordinary skill in the art will recognize such things as: terms such as above, below, upward, downward, etc. are used for describing the drawings, and do not represent limitations upon the scope of the present invention defined by the appended claims. Such as: any numerical designation of the first or second, etc. is merely exemplary and is not intended to limit the scope of the present invention in any way.

Example 1: 1-10, including hull 1, link 2, mount 31, gyro wheel 32, mounting bracket 41, motor frame 42, waterproof motor 43, guide frame 401, pressure spring 402, elevating system and protection machanism, four link 2 are welded at the top of hull 1, four pairs of mounts 31 have been welded all around of hull 1, all be connected with gyro wheel 32 on every mount 31 rotationally, the welding of hull 1's top has a plurality of guide frame 401, be connected with two mounting brackets 41 and two motor frames 42 on a plurality of guide frame 401 respectively in the slip form, guide frame 401 plays the limiting displacement to mounting bracket 41 and motor frame 42, motor frame 42 and mounting bracket 41 welding of same side, a plurality of guide frame 401 all is connected with pressure spring 402 between two mounting brackets 41 and two motor frames 42 respectively, all be connected with waterproof motor 43 through the bolted connection on two motor frames 42, be equipped with elevating system on hull 1, elevating system is used for driving the lift of hull 1, be equipped with protection machanism on hull 1, protection machanism is used for protecting gyro wheel 32 not by corrosion.

The lifting mechanism comprises a rotating shaft 51, limiting locks 53, steel cables 54, piston cylinders 55 and piston rods 56, the rotating shaft 51 is rotatably connected to the mounting frame 41, the limiting locks 53 are connected to the rotating shaft 51 through bolts, the steel cables 54 are wound on the rotating shaft 51, the steel cables 54 are formed by winding a plurality of steel cables, the limiting locks 53 are in contact with the steel cables 54, the top of the boat body 1 is connected with the four piston cylinders 55 through bolts, the piston rods 56 are respectively located in each piston cylinder 55, and the piston cylinders 55 are connected with the piston rods 56 in a sliding mode.

The restricting lock 53 is an electric lock.

The protection mechanism comprises a liquid guide rod 61, a liquid guide rod 62, a fixed seat 63, a protective shell 64, rotating blocks 65 and sealing cylinders 66, wherein the liquid guide rod 61 is welded on two piston cylinders 55 in front of the boat body 1 respectively, the liquid guide rod 62 is welded on two piston cylinders 55 in back of the boat body 1 respectively, the piston cylinders 55 are respectively communicated with the liquid guide rod 61 and the liquid guide rod 62, four pairs of fixed seats 63 are fixedly connected to the periphery of the boat body 1, each fixed frame 31 is arranged in each fixed seat 63, two protective shells 64 are connected to each fixed seat 63 in a rotating mode, the rotating blocks 65 are welded on each protective shell 64, the sealing cylinders 66 are connected to each rotating block 65 in a rotating mode, a plurality of sealing cylinders 66 close to the front of the boat body 1 are respectively welded with the two liquid guide rods 61, the liquid guide rods 61 are communicated with the sealing cylinders 66, a plurality of sealing cylinders 66 close to the back of the boat body 1 are respectively welded with the two liquid guide rods 62, and the liquid guide rods 62 are communicated with the sealing cylinders 66.

Initially, the steel cable 54 is fixedly connected to the cargo ship, and the ship body 1 is locked by the limit lock on the cargo ship through the hanging ring 2, when the cargo ship encounters a reef or the like at sea, after a worker on the ship enters the inside of the ship body 1, the other workers release the lock on the limit lock on the cargo ship and the hanging ring 2, then the ship body 1, the hanging ring 2, the fixing frame 31, the guide frame 401, the roller 32, the piston cylinder 55, the liquid guide rod 61, the guide rod 62, the fixing seat 63, the protective shell 64, the rotating block 65 and the sealing cylinder 66 move downwards under the action of gravity, the mounting frame 41, the motor frame 42, the waterproof motor 43 and the piston rod 56 are pulled by the steel cable 54, the guide frame 401 moves downwards to enable the pressure spring 402 to be compressed, meanwhile, the guide frame 401 contacts with the mounting frame 41 and the motor frame 42, the sealing cylinder 66 moves downwards to extrude hydraulic oil in the sealing cylinder 66 along the liquid guide rod 61 and the guide rod 62, the extruded hydraulic oil pushes the rotating block 65 to rotate, the rotating block 65 rotates to drive the protective shell 64 to rotate, the protective shell 64 rotates to expose the middle fixing frame 31 and the idler wheel 32, finally, a worker controls the waterproof motor 43 to start, the waterproof motor 43 starts to drive the rotating shaft 51 to rotate, the rotating shaft 51 rotates to release the steel cable 54, and the boat body 1 is made to rotate, The hanging ring 2, the fixing frame 31, the roller 32, the mounting frame 41, the motor frame 42, the waterproof motor 43, the guide frame 401, the pressure spring 402, the rotating shaft 51, the limiting lock 53, the steel cable 54, the piston cylinder 55, the piston rod 56, the liquid guide rod 61, the guide rod 62, the fixing seat 63, the protective shell 64, the rotating block 65 and the sealing cylinder 66 slowly descend, the roller 32 on one side of the hull 1 is contacted with the side wall of the cargo ship as much as possible in the descending process, the side wall of the cargo ship guides the hull 1 and the roller 32, the large shaking of the hull 1 is reduced as much as possible, the hull 1 stably descends, and after the hull 1 contacts the sea, after the steel cable 54 is released, the worker turns off the waterproof motor 43 and turns on the limiting lock 53, the steel cable 54 is separated from the limiting lock 53, the pressure spring 402 is reset, the mounting frame 41, the motor frame 42, the waterproof motor 43 and the piston rod 56 are reset under the drive of the pressure spring 402, the piston rod 56 is reset to enlarge the space between the piston cylinder 55 and the piston rod 56, the space between the piston cylinder 55 and the piston rod 56 is enlarged to enable hydraulic oil to flow back, the hydraulic oil flowing back is enabled to reduce the hydraulic oil between the sealing cylinder 66 and the rotating block 65, the hydraulic oil between the sealing cylinder 66 and the rotating block 65 is reduced to enable the rotating block 65 and the protective shell 64 to be reset, the erosion of sea water to the fixed frame 31 and the roller 32 is reduced, the personnel drive the lifeboat to keep away from the cargo vessel, in this operation mode, a batch of personnel do not need to stay on the cargo vessel, the last batch of personnel on the cargo vessel can withdraw safely, after the rescue vessel arrives, the personnel in the hull 1 are first saved by the personnel on the rescue vessel, then the personnel on the rescue vessel throw two steel cables 54 from the rescue vessel, the personnel below the rescue vessel clamps the steel cables 54 into the limiting lock 53, then the limiting lock 53 is closed, the rescue personnel and the saved personnel return to the rescue vessel, then the waterproof motor 43 is started, the waterproof motor 43 drives the rotating shaft 51 and the limiting lock 53 to rotate, the rotation of the rotation shaft 51 and the limiting lock 53 can wind the steel cable 54, the installation frame 41, the motor frame 42, the waterproof motor 43 and the piston rod 56 which are caused by the straightening of the steel cable 54 move upwards, the space between the piston cylinder 55 and the piston rod 56 is reduced by the movement of the piston rod 56, hydraulic oil which is extruded by the space reduction between the piston cylinder 55 and the piston rod 56 flows between the knife sealing cylinder 66 and the rotation block 65 through the liquid guide rod 61 and the flow guide rod 62, the rotation block 65 and the protection shell 64 are driven to rotate by the hydraulic oil, and the boat body 1, the hanging ring 2, the fixing frame 31, the roller 32, the rolling of the steel cable 54 can be caused by the continuous winding of the steel cable 54, The rescue boat comprises a mounting frame 41, a motor frame 42, a waterproof motor 43, a rotating shaft 51, a limiting lock 53, a piston cylinder 55, a piston rod 56, a liquid guide rod 61, a guide rod 62, a fixing seat 63, a protective shell 64, a rotating block 65 and a sealing cylinder 66, wherein the roller 32 is in contact with the rescue boat, the whole boat body 1 moves upwards along the outer wall of the rescue boat, after the boat body 1 moves by a certain height, a worker closes the waterproof motor 43, a steel cable 54 passes through a hanging ring 2 to fix the rescue boat on the rescue boat, and the rescue boat can be lifted through the power of the rescue boat and can be stored in most boats.

Example 2: on the basis of embodiment 1, as shown in fig. 7-10, the device further comprises a lubrication mechanism, the lubrication mechanism comprises a protection cylinder 71, a push rod 72, a pull rod 73, a movable frame 74, a compression spring 75 and a shell 76, the protection cylinder 71 is welded on each sealing cylinder 66, the push rod 72 is connected to the fixed seat 63 in a sliding manner, the push rod 72 is used for pushing lubricating oil, the pull rod 73 is welded on the push rod 72, the movable frame 74 is welded on the pull rod 73, the compression spring 75 is connected between the movable frame 74 and the sealing cylinders 66, part of the movable frame 74 and the compression spring 75 are wrapped by the protection cylinder 71, the protection cylinder 71 is used for avoiding the compression spring 75 from contacting with seawater, the shell 76 is connected to the fixed frame 31 through bolts, the shell 76 is connected with the push rod 72 in a sliding manner, a through hole is formed in the upper part of the fixed frame 31, the shell 76 is communicated with the through hole of the fixed frame 31, the shaft body of the roller 32 is contacted with the through hole of the fixed frame 31, and the shell 76 is used for containing lubricating oil.

Initially, the shell 76 is filled with lubricating oil, the protective shell 64 rotates to press the pulling rod 73 to enable the pulling rod 73 to move, the pulling rod 73 moves to drive the pushing rod 72 and the moving frame 74 to move, the moving frame 74 compresses the compression spring 75, the pushing rod 72 extrudes the lubricating oil in the shell 76, the lubricating oil flows onto the shaft body of the roller 32 through the through hole of the fixing frame 31, the roller 32 can roll more smoothly, the rescue boat is more stable in lifting, and after the protective shell 64 resets, the compression spring 75 enables the pushing rod 72 and the moving frame 74 to reset.

Example 3: on the basis of embodiment 2, as shown in fig. 11-12, the boat further comprises a guiding mechanism, the guiding mechanism comprises a pulling frame 81, guiding rings 82, guiding rods 83, rotating rods 84 and rotating rods 841, two pulling frames 81 are welded on the top of the boat body 1, one guiding ring 82 is welded on each mounting frame 41, two guiding rods 83 are connected on each guiding ring 82 in a sliding mode, the guiding rods 83 are used for limiting the steel cables 54, one guiding rod 83 is welded with the rotating rods 84, the other guiding rod 83 is welded with the rotating rods 841, the rotating rods 84 are connected with the rotating rods 841 in a rotating mode, and the rotating rods 84 are connected with the pulling frames 81 in a sliding mode.

The guide rod 83 is stainless steel.

The mounting bracket 41 removes and can drives guide ring 82, guide bar 83, dwang 84 and rotary rod 841 and remove, dwang 84 and rotary rod 841 remove and can be limited by pulling frame 81 for dwang 84 and rotary rod 841 rotate at the in-process that removes, dwang 84 and rotary rod 841 rotate and can drive two guide bars 83 and rotate, two guide bars 83 rotate and can carry out spacing to steel cable 54, guide bar 83 can carry out spacing to steel cable 54, reduce the friction of steel cable 54 at the lift process to hull 1, make the life-saving boat can rise better, mounting bracket 41 resets and can drive guide ring 82, guide bar 83, dwang 84 and rotary rod 841 reset, guide bar 83 is not being limited to steel cable 54, make steel cable 54 break away from and install that can be better.

Example 4: on the basis of embodiment 3, as shown in fig. 1, the boat further comprises a cushion pad 9, wherein the cushion pad 9 is connected to two sides of the boat body 1 through bolts, and the cushion pad 9 is made of rubber.

The cushion pad 9 can absorb shock when the hull 1 approaches the rescue boat, and damage to the hull 1 caused by shock is reduced.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims (10)

1. The utility model provides a lifeboat with elevating gear, a serial communication port, including hull (1), link (2), mount (31), gyro wheel (32), mounting bracket (41), motor frame (42), waterproof motor (43), guide frame (401), compression spring (402), elevating system and protection mechanism, four link (2) of top fixedly connected with of hull (1), four pairs of mounts (31) of fixedly connected with all around of hull (1), all be connected with gyro wheel (32) on every mount (31), the top fixedly connected with of hull (1) has a plurality of guide frame (401), be connected with two mounting brackets (41) and two motor frame (42) on a plurality of guide frame (401) respectively in a sliding manner, all be connected with compression spring (402) between motor frame (42) and the mounting bracket (41) of same side, all fixedly connected with waterproof motor (43) on two motor frame (42) respectively, be equipped with elevating system on hull (1) and lift mechanism, hull (1) are used for driving hull (1) on the protection mechanism, be equipped with the protection mechanism is used for the hull (32), the protection mechanism is not used for the hull.

2. A lifeboat with a lifting device according to claim 1, wherein the lifting mechanism comprises a rotating shaft (51), a limiting lock (53), a steel cable (54), piston cylinders (55) and a piston rod (56), the rotating shaft (51) is rotatably connected to the mounting frame (41), the limiting lock (53) is fixedly connected to the rotating shaft (51), the steel cable (54) is wound on the rotating shaft (51), the limiting lock (53) is in contact with the steel cable (54), the top of the boat body (1) is fixedly connected with four piston cylinders (55), the piston rod (56) is respectively arranged in each piston cylinder (55), and the piston cylinders (55) are slidably connected with the piston rod (56).

3. A lifeboat with a lifting device according to claim 2, wherein the restraining lock (53) is an electric lock.

4. A life boat with lifting device according to claim 3, characterized in that the protection mechanism comprises a liquid guide rod (61), a liquid guide rod (62), fixing seats (63), a protective shell (64), rotating blocks (65) and sealing cylinders (66), wherein the liquid guide rod (61) is fixedly connected to two piston cylinders (55) in front of the boat body (1), the liquid guide rod (62) is fixedly connected to two piston cylinders (55) in back of the boat body (1), the piston cylinders (55) are respectively communicated with the liquid guide rod (61) and the liquid guide rod (62), four pairs of fixing seats (63) are fixedly connected to the periphery of the boat body (1), each fixing seat (31) is arranged in the fixing seat (63), two protective shells (64) are rotatably connected to each fixing seat (63), the rotating blocks (65) are fixedly connected to each protective shell (64), the sealing cylinders (66) are rotatably connected to each rotating block (65), a plurality of sealing cylinders (66) in front of the boat body (1) are respectively connected to the two liquid guide rods (61) and the liquid guide rods (62), the sealing cylinders (66) are respectively communicated with the liquid guide rods (66) in front of the boat body (1), the guide rod (62) is communicated with the sealing cylinder (66).

5. A lifeboat with a lifting device according to claim 4, wherein the rollers (32) are located in two protective shells (64), the protective shells (64) reducing seawater erosion of the frame (31) and the rollers (32).

6. The lifeboat with the lifting device according to claim 5, further comprising a lubrication mechanism, wherein the lubrication mechanism comprises a protection cylinder (71), a push rod (72), a pull rod (73), a moving frame (74), a compression spring (75) and a shell (76), wherein the protection cylinder (71) is fixedly connected to each sealing cylinder (66), the push rod (72) is slidingly connected to the fixing base (63), the pull rod (73) is fixedly connected to the push rod (72), the moving frame (74) is fixedly connected to the pull rod (73), the compression spring (75) is connected between the moving frame (74) and the sealing cylinders (66), part of the moving frame (74) and the compression spring (75) are wrapped by the protection cylinder (71), the shell (76) is fixedly connected to the fixing frame (31), the shell (76) is slidingly connected to the push rod (72), and the shell (76) is communicated with the fixing frame (31).

7. A lifeboat with a lifting device according to claim 6, wherein the upper part of the fixing frame (31) is provided with a through hole, the housing (76) is communicated with the through hole of the fixing frame (31), the shaft body of the roller (32) is contacted with the through hole of the fixing frame (31), and the housing (76) is used for containing lubricating oil.

8. The lifeboat with the lifting device according to claim 7, further comprising a guiding mechanism, wherein the guiding mechanism comprises a pulling frame (81), guiding rings (82), guiding rods (83), rotating rods (84) and rotating rods (841), the top of the boat body (1) is fixedly connected with two pulling frames (81), each mounting frame (41) is fixedly connected with one guiding ring (82), each guiding ring (82) is fixedly connected with two guiding rods (83), one guiding rod (83) is fixedly connected with a rotating rod (84), the other guiding rod (83) is fixedly connected with a rotating rod (841), the rotating rods (84) are rotatably connected with the rotating rods (841), and the rotating rods (84) and the rotating rods (841) are slidably connected with the pulling frames (81).

9. A lifeboat with a lifting device according to claim 8, wherein the guiding rod (83) is stainless steel.

10. A lifeboat with a lifting device according to claim 9, further comprising a cushion pad (9), wherein the cushion pads (9) are fixedly connected to both sides of the hull (1).