A launch and recovery mechanism for a ship's lifting lateral thruster

Abstract

The application discloses a retractable mechanism of a ship lifting lateral propeller and relates to the technical field of propellers. The mechanism comprises a ship plate, a driving assembly installed in the ship plate, a hydraulic cylinder, a push rod of the hydraulic cylinder, a gear plate, a plurality of slide rails, a first gear and a rotating shaft. The two ends of the hydraulic cylinder are fixedly installed on the ship plate through support seats. The push rod of the hydraulic cylinder is fixedly installed on the gear plate. The gear plate is slidably installed in the slide rails. The slide rails are fixedly installed on the ship plate. One side of the gear plate is in meshing connection with the first gear. The first gear is fixed on the rotating shaft. One end of the rotating shaft is movably installed on the ship plate through a bearing. Two spiral grooves are arranged on the rotating shaft. In use, the top of an adjusting shaft pipe is fixedly installed on a rotating drum at one end of a moving arm. When the gear plate is driven to mesh with the first gear through the hydraulic cylinder, the first gear drives the rotating shaft to rotate. Meanwhile, the moving arm is rotated by 90 degrees. The supporting rod on the moving arm moves along the arc-shaped groove through the roller, so that the stability of the deflection lifting assembly during movement is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of propeller technology, and in particular to a retractable mechanism of a ship lifting lateral propeller. BACKGROUND

[0002] The lateral propeller is usually installed on the side, bow or stern of the ship body, used for controlling the lateral movement of the ship, facilitating the turning, transverse movement, docking and other operations of the ship, and can significantly improve the steering performance and stability of the ship during low-speed sailing, reversing and stopping;

[0003] For small yachts, working platforms and engineering ships with limited installation space, the traditional lateral propeller is fixedly installed, which may reduce the power use efficiency due to insufficient positioning size and other problems, and also increase the ship body resistance of the whole ship, causing energy waste. The ship lifting lateral propeller cannot be retracted back when not in use, which affects the linearity of the ship body, increases the ship body resistance, and also cannot adjust the position according to the actual situation, so it cannot effectively meet different working needs.

[0004] According to the search, the Chinese patent publication No. CN202410938947.0 discloses a retractable mechanism for lifting propeller; comprising a retractable bin, and the left side of the bin is internally connected with a propeller body, and the bottom of the propeller body is connected with a propeller, and the right side bottom of the bin is rotatably connected with a bin door through a rotating shaft; the fixed column is installed on the inner wall of the rear side of the bin, and the outer side of the fixed column is sleeved with a circular plate, and the circular plate is slidably connected with a cleaning nozzle at equal angles; the rotating cleaning mechanism is arranged on the rear side of the bin and the circular plate, and the rotating cleaning mechanism rotates the cleaning nozzle to move to clean the propeller, reducing the corrosion loss caused by seawater and attached microorganisms

[0005] The device in the above-mentioned patent retracts the propeller body and the propeller by opening and closing the bin door through the second electric push rod, and rotating the propeller body by 90° through the first electric push rod, and rotating the propeller to the bottom of the bin, so as to realize the side thrust effect by rotating the propeller. However, the propeller body in the above-mentioned patent is cooperatively installed with the cam, so that the angle adjustment effect of the propeller cannot be realized by the propeller body, and only the effective side thrust effect of the propeller in one direction can be realized, which may not effectively meet the side thrust effect of different angles in actual application. SUMMARY

[0006] The purpose of the present application is to provide a ship lifting lateral thruster mechanism, in which the thruster is fitted and installed at one end of the deflection lifting assembly, and the deflection lifting assembly is deflected by the driving assembly, and the thruster is simultaneously adjusted in angle by the cooperation between the driving sprocket and the driven sprocket arranged at the two ends of the moving arm, so that the operation time can be effectively reduced when the thruster is retracted or extended, and the position of the thruster can be effectively adjusted by the deflection lifting assembly when the thruster is adjusted in angle, thereby effectively meeting different working needs.

[0007] To achieve the above purpose, the present application provides the following technical solutions:

[0008] A ship lifting lateral thruster mechanism, comprising a ship plate, a driving assembly fitted and installed inside the ship plate, a hydraulic cylinder, the two ends of the hydraulic cylinder being fixedly installed with the ship plate through a support seat, a push rod of the hydraulic cylinder being fixedly installed with a tooth plate, the tooth plate being slidably installed inside a plurality of slide rails, the slide rails being fixedly installed with the ship plate, the tooth plate being meshingly connected with a first gear on one side, the first gear being fixed on a rotating shaft, the rotating shaft being movably installed with the ship plate at one end through a bearing, two helical grooves being arranged on the rotating shaft, the moving arm being effectively moved up and down along the rotating shaft in the cooperation between the helical grooves and the clamping columns during the rotation of the rotating shaft, thereby achieving the up and down adjustment of the thruster and the retraction and extension effect.

[0009] A deflection lifting assembly is arranged on the rotating shaft, the deflection lifting assembly comprising a moving arm, one end of the moving arm being fixedly installed with a support seat, two symmetrical clamping columns being integrally arranged on the inner wall of the moving arm and the rotating shaft in cooperation, the clamping columns cooperating with the helical grooves, the support rod being unable to effectively block when the rotating shaft rotates, so that only the parallel movement of the moving arm can be achieved, the thruster being deflected from the placement plate to the outlet of the ship plate,

[0010] As a further technical solution of the present application, the two ends of the moving arm are movably installed with a driving sprocket and a driven sprocket, respectively, the driving sprocket being movably installed with the rotating shaft, a chain being arranged between the driving sprocket and the driven sprocket, the driven sprocket being fixedly installed with a rotating cylinder inside, the rotating cylinder being movably installed with the moving arm through a bearing, the support rod being unable to move when the support rod and the roller move to the end of the arc-shaped groove, so that the support rod effectively blocks the moving arm, the moving arm being moved downward along the rotating shaft, and the moving arm being moved upward when being retracted.

[0011] As a further technical solution of the present invention, a rectangular groove is provided on the top of the movable arm to facilitate the installation of the adjustment plate; the adjustment plate is detachably installed on the movable arm by bolts; a tension wheel is movably installed at the bottom of one end of the adjustment plate; the tension wheel is in contact with the chain; when the rotating shaft drives the movable arm to rotate, the rotating shaft also cooperates with the drive sprocket, so that the driven sprocket is rotated through the chain via the drive sprocket, thereby realizing the effective rotation of the drum by the driven sprocket;

[0012] As a further technical solution of the present invention, the movable arm is provided with a support rod; a roller is movably mounted on one end of the support rod; the roller is movably mounted in an arc-shaped groove opened on the inner wall of the ship plate; a drive motor is also fixedly mounted on one end of the movable arm where the driven sprocket is provided; the output shaft of the drive motor passes through the movable arm and is fixedly mounted with a drive gear; by driving the drive gear to rotate, the meshing between the drive gear and the driven gear can be effectively realized, thereby realizing the rotation of the propeller;

[0013] As a further technical solution of the present invention, a propeller is fixedly installed at the bottom of the rotating drum; the propeller includes an adjusting shaft tube; the adjusting shaft tube is T-shaped; the top of the adjusting shaft tube is fixedly installed with the rotating drum; an active rotating shaft is provided inside the adjusting shaft tube; the active rotating shaft is installed with the rotating drum through a bearing; a driven gear and an active bevel gear are fixedly installed at both ends of the active rotating shaft respectively; wherein the driven gear and the active gear are meshed and connected; during the rotation of the rotating drum, the propeller rotates synchronously with the propeller fixedly installed at the bottom of the rotating drum, thereby achieving a 90° rotation of the propeller, thus effectively avoiding the need to adjust the angle after the propeller has moved into position, thereby reducing the adjustment time;

[0014] As a further technical solution of the present invention, one side of the active bevel gear is meshed with the driven bevel gear; the driven bevel gear is fixedly installed with the propeller through a driven rotating shaft; the driven rotating shaft is movably installed inside the horizontal section of the adjusting shaft tube; when the active gear drives the driven gear to rotate, the active rotating shaft synchronously drives the active bevel gear to rotate, and the active bevel gear drives the driven bevel gear at one end of the driven rotating shaft to rotate, and the propeller at the other end of the driven rotating shaft rotates synchronously, achieving the effect of side thrust;

[0015] As a further technical solution of the present invention, a protective shell is integrally provided at one end of the adjusting shaft tube; the protective shell is located outside the propeller; the protective shell effectively prevents the propeller from getting entangled with debris in the water during operation, thereby ensuring the working efficiency and safety of the propeller.

[0016] As a further technical scheme of the present application, the fixed mounting plate is fixedly mounted on the inner wall of the ship plate to facilitate the storage of the propeller; after the deflection lifting assembly and the propeller are retracted into the ship plate by the driving assembly, the deflection lifting assembly and the propeller are located at the top of the rotating shaft and are in a suspended state; in order to ensure the stability, the propeller is deflected to the fixed mounting plate, so that the deflection lifting assembly and the propeller are prevented from moving under their own gravity.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] In use, the top of the adjusting shaft pipe is fixedly mounted with the rotating drum at one end of the moving arm, when the gear plate is engaged with the first gear by the hydraulic cylinder, the rotating shaft is rotated by the first gear, and at the same time, the moving arm is rotated by 90°, the supporting rod on the moving arm moves along the arc-shaped groove through the roller, so as to ensure the stability of the deflection lifting assembly during movement.

[0019] When the roller contacts the end of the arc-shaped groove, the propeller moves to the outlet of the ship plate, the first gear continues to rotate driven by the gear plate, at this time, the clamping column in the moving arm cooperates with the spiral groove on the rotating shaft, so as to realize the downward movement of the deflection lifting assembly along the rotating shaft, and at the same time, the moving arm slides downward along the supporting rod.

[0020] When the rotating shaft rotates, it cooperates with the driving sprocket to effectively rotate the driven sprocket through the chain, the inside of the driven sprocket is effectively fixed with the rotating drum, the rotating drum drives the propeller to rotate, and when the deflection lifting assembly drives the propeller to move downward, the propeller is simultaneously rotated by 90°, so as to effectively reduce the adjustment time of the propeller during work.

[0021] After adjustment, the driving motor installed at the end of the moving arm drives the meshing between the driving sprocket and the driven rotating shaft, the meshing between the driving bevel gear at the bottom of the driving rotating shaft and the driven bevel gear is realized, the driven bevel gear drives the propeller to work effectively through the driven rotating shaft, and the side thrust effect is realized.

[0022] After use, the deflection lifting assembly drives the propeller to rotate to the inlet of the ship plate through the driving assembly, the rotating shaft is reversed by the first gear, the propeller is retracted from the bottom of the ship body to the inside of the cabin, and the retracted propeller and the deflection lifting assembly are located at the top of the rotating shaft, in order to ensure the stability, the retracted propeller is deflected to the fixed mounting plate in the ship body, so as to prevent the deflection lifting assembly and the propeller from automatically sliding downward under their own gravity. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of the present application.

[0024] Figure 2 is a schematic view of the rear structure of the present application Figure 1 .

[0025] Figure 3 is another perspective schematic view of the present application Figure 1 .

[0026] Figure 4 is another perspective schematic view of the present application Figure 3 .

[0027] Figure 5 is a front view of the present application Figure 1 .

[0028] Figure 6 is a schematic exploded view of the present application Figure 1 .

[0029] Figure 7 is a front view of the propeller in the present application Figure 6 .

[0030] Figure 8 is a schematic exploded view of the present application Figure 7 .

[0031] Figure 9 is a sectional view of A-A in the present application Figure 7 .

[0032] Figure 10 is a bottom structure view of the deflection lifting assembly in the present application Figure 6 .

[0033] Figure 11 is another perspective schematic view of the present application Figure 10 .

[0034] Figure 12 is an enlarged view of the local structure at B in the present application Figure 1 .

[0035] Figure 13 is an enlarged view of the local structure at C in the present application Figure 2 .

[0036] In the figure: 1-boat plate, 2-driving assembly, 20-hydraulic cylinder, 21-toothed plate, 22-slideway, 23-supporting seat, 24-rotating shaft, 25-spiral groove, 26-first gear, 3-deflection lifting assembly, 30-moving arm, 31-driving gear, 32-supporting rod, 33-driven sprocket, 34-chain, 35-driving sprocket, 36-adjusting plate, 37-tension pulley, 38-rotating drum, 39-supporting seat, 310-roller, 311-clamping column, 312-driving motor, 4-propeller, 40-adjusting shaft tube, 41-protective shell, 42-screw propeller, 43-driven gear, 44-bearing, 45-driven bevel gear, 46-driven rotating shaft, 47-driving rotating shaft, 48-driving bevel gear, 5-putting plate, 6-arc-shaped groove. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0038] Please refer to Figures 1-11 In the embodiments of the present application, a putting and taking mechanism of a ship lifting lateral propeller comprises a boat plate 1; a driving assembly 2 is installed in the boat plate 1; the driving assembly 2 comprises a hydraulic cylinder 20; the hydraulic cylinder 20 is fixedly installed on the boat plate 1 through supporting seats 23 at both ends; a push rod of the hydraulic cylinder 20 is fixedly installed with a toothed plate 21; the toothed plate 21 is slidably installed in a plurality of slideways 22; the slideways 22 are fixedly installed on the boat plate 1; one side of the toothed plate 21 is engagedly connected with a first gear 26; the first gear 26 is fixed on a rotating shaft 24, one end of the rotating shaft 24 is movably installed on the boat plate 1 through a bearing; two spiral grooves 25 are arranged on the rotating shaft 24;

[0039] A deflection lifting assembly 3 is arranged on the rotating shaft 24; the deflection lifting assembly 3 comprises a moving arm 30; one end of the moving arm 30 is fixedly installed on a supporting seat 39; two symmetrical clamping columns 311 are integrally arranged on the inner wall of the moving arm 30 and the rotating shaft 24; the clamping columns 311 cooperate with the spiral grooves 25;

[0040] Both ends of the moving arm 30 are movably installed with a driving sprocket 35 and a driven sprocket 33 respectively; wherein, the driving sprocket 35 is movably installed on the rotating shaft 24; a chain 34 is arranged between the driving sprocket 35 and the driven sprocket 33; the driven sprocket 33 is fixedly installed with a rotating drum 38; the rotating drum 38 is movably installed with the moving arm 30 through a bearing;

[0041] By adopting the above technical scheme, in use, the top of the adjusting shaft pipe 40 is fixedly installed with the rotating drum 38 at one end of the moving arm 30, when the gear plate 21 and the first gear 26 are engaged by the hydraulic cylinder 20, the first gear 26 drives the rotating shaft 24 to rotate, at the same time, the moving arm 30 is rotated by 90°, the supporting rod 32 on the moving arm 30 moves along the arc-shaped groove 6 through the roller 310, so as to ensure the stability of the deflection lifting assembly 3 when moving;

[0042] Please refer to Figures 1-13 In the embodiment, the moving arm 30 is provided with a rectangular groove at the top for installing the adjusting plate 36; the adjusting plate 36 is detachably installed with the moving arm 30 through bolts; the adjusting plate 36 is movably installed with the tensioning wheel 37 at one end of the bottom; the tensioning wheel 37 is in contact with the chain 34;

[0043] In the embodiment, the moving arm 30 is provided with the supporting rod 32; one end of the supporting rod 32 is movably installed with the roller 310; the roller 310 is movably installed in the arc-shaped groove 6 formed in the inner wall of the boat plate 1; one end of the moving arm 30 provided with the driven sprocket 33 is further fixedly installed with the driving motor 312; the output shaft of the driving motor 312 penetrates the moving arm 30 and is fixedly installed with the driving gear 31;

[0044] By adopting the above technical scheme, when the roller 310 is in contact with the end of the arc-shaped groove 6, the propeller 4 moves to the outlet of the boat plate 1, the gear plate 21 drives the first gear 26 to continue rotating, at this time, the clamping column 311 in the moving arm 30 cooperates with the spiral groove 25 on the rotating shaft 24, so as to realize the downward movement of the deflection lifting assembly 3 along the rotating shaft 24, at the same time, the moving arm 30 slides downward along the supporting rod 32;

[0045] Further, when the rotating shaft 24 rotates, it also cooperates with the driving sprocket 35, so as to realize the effective rotation of the driving sprocket 35 through the chain 34 to drive the driven sprocket 33, the inside of the driven sprocket 33 is effectively fixed with the rotating drum 38, so as to realize the rotation of the rotating drum 38 to drive the propeller 4 to rotate, when the deflection lifting assembly 3 drives the propeller 4 to move downward, the propeller 4 is simultaneously rotated by 90°, so as to effectively reduce the adjustment time of the propeller 4 when working;

[0046] In the embodiment, the pusher 4 is fixedly installed at the bottom of the rotating drum 38; the pusher 4 comprises an adjusting shaft pipe 40; the adjusting shaft pipe 40 is arranged in a T shape; the top of the adjusting shaft pipe 40 is fixedly installed with the rotating drum 38; the inside of the adjusting shaft pipe 40 is provided with a driving shaft 47; the driving shaft 47 is cooperatively installed with the rotating drum 38 through a bearing 44; the two ends of the driving shaft 47 are fixedly installed with a driven gear 43 and a driving bevel gear 48 respectively; wherein, the driven gear 43 is meshingly connected with the driving gear 31;

[0047] The driving bevel gear 48 is meshingly connected with a driven bevel gear 45 on one side; the driven bevel gear 45 is fixedly installed with a propeller 42 through a driven shaft 46; the driven shaft 46 is movably installed inside the horizontal section of the adjusting shaft pipe 40;

[0048] Through the above technical scheme, after adjustment, the driving motor 312 installed at the end of the moving arm 30 drives the meshing between the driving gear 31 and the driven shaft 46, realizes the meshing between the driving bevel gear 48 at the bottom of the driving shaft 47 and the driven bevel gear 45, realizes the effective work of the propeller 42 driven by the driven bevel gear 45 through the driven shaft 46, and realizes the effect of side pushing.

[0049] In the embodiment, one end of the adjusting shaft pipe 40 is integrally provided with a protective shell 41 outside the propeller 42;

[0050] The inside wall of the ship plate 1 is fixedly installed with a placing plate 5 for conveniently storing the pusher 4;

[0051] Through the above technical scheme, after use, the deflection and lifting assembly 3 drives the pusher 4 to rotate to the entrance of the ship plate 1 through the driving assembly 2, the pusher 4 is collected from the bottom of the ship body 1 to the inside of the cabin through the reverse rotation of the shaft 24 driven by the first gear 26, the collected pusher 4 and the deflection and lifting assembly 3 are located at the top of the shaft 24, in order to ensure the stability, the collected pusher 4 is deflected to the placing plate 5 inside the ship body 1, and the deflection and lifting assembly 3 and the pusher 4 are prevented from automatically sliding down under the gravity thereof;

[0052] The working principle of the application is that, in use, the top of the adjusting shaft pipe 40 is fixedly installed with the rotating drum 38 at one end of the moving arm 30, when the toothed plate 21 and the first gear 26 are meshed through the hydraulic cylinder 20, the first gear 26 drives the shaft 24 to rotate, at the same time, the moving arm 30 is rotated by 90°, the supporting rod 32 on the moving arm 30 moves along the arc-shaped groove 6 through the roller 310, so as to ensure the stability of the deflection and lifting assembly 3 during movement;

[0053] When the roller 310 contacts the end of the arc-shaped groove 6, the thruster 4 moves to the outlet of the ship plate 1, the first gear 26 is driven to continue rotating by the toothed plate 21, at this time, the clamping column 311 inside the moving arm 30 cooperates with the helical groove 25 on the rotating shaft 24, so that the deflection and lifting assembly 3 moves downward along the rotating shaft 24, at the same time, the moving arm 30 slides downward along the supporting rod 32;

[0054] When the rotating shaft 24 rotates, it also cooperates with the driving sprocket 35, so that the driving sprocket 35 drives the driven sprocket 33 to rotate effectively through the chain 34, the inside of the driven sprocket 33 is fixed with the rotating drum 38 effectively, so that the rotating drum 38 drives the thruster 4 to rotate, when the deflection and lifting assembly 3 drives the thruster 4 to move downward, the thruster 4 rotates by 90° synchronously, so that the time for adjusting the thruster 4 during work is effectively reduced;

[0055] After adjustment, the driving motor 312 installed at the end of the moving arm 30 drives the meshing between the driving gear 31 and the driven rotating shaft 46, so that the meshing between the driving bevel gear 48 at the bottom of the driving rotating shaft 47 and the driven bevel gear 45 is realized, the driven bevel gear 45 drives the propeller 42 to work effectively through the driven rotating shaft 46, so that the side thrust effect is realized;

[0056] After use, the deflection and lifting assembly 3 drives the thruster 4 to rotate to the inlet opened on the ship plate 1 through the driving assembly 2, the thruster 4 is recovered to the inside of the cabin from the bottom of the ship body 1 by reversing the rotating shaft 24 through the first gear 26, the thruster 4 and the deflection and lifting assembly 3 are located at the top of the rotating shaft 24, in order to ensure the stability, the recovered thruster 4 is deflected to the placing plate 5 inside the ship body 1, so that the deflection and lifting assembly 3 and the thruster 4 do not automatically slide downward under their own gravity.

[0057] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0058] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A launch and recovery mechanism for a ship's lifting lateral thruster, characterised in that: Including the ship board (1), the ship board (1) inside fit installation drive assembly (2), drive assembly (2) include hydraulic cylinder (20), the both ends of hydraulic cylinder (20) are fixedly installed with the support seat (23) and the ship board (1), the push rod of hydraulic cylinder (20) is fixedly installed with the toothed plate (21), the toothed plate (21) is slidably installed in a plurality of slide rails (22), the slide rail (22) is fixedly installed with the ship board (1), the toothed plate (21) one side is engagedly connected with the first gear (26), the first gear (26) is fixed on the rotating shaft (24), the rotating shaft (24) one end is movably installed with the ship board (1) through the bearing, the rotating shaft (24) is provided with two spiral grooves (25), The rotating shaft (24) is provided with a deflection lifting assembly (3), the deflection lifting assembly (3) includes a moving arm (30), one end of the moving arm (30) is fixedly installed with a support seat (39), the moving arm (30) is integrally provided with two symmetrical clamping columns (311) on the inner wall of the rotating shaft (24), the clamping column (311) is matched with the spiral groove (25). Both ends of the moving arm (30) are movably provided with a driving sprocket (35) and a driven sprocket (33), wherein the driving sprocket (35) is movably installed with the rotating shaft (24), the driving sprocket (35) and the driven sprocket (33) are provided with a chain (34), the driven sprocket (33) is fixedly installed with a rotating drum (38), the rotating drum (38) and the moving arm (30) are movably installed through a bearing. A rectangular groove is formed in the top of the moving arm (30) for installing an adjusting plate (36), the adjusting plate (36) is detachably installed with the moving arm (30) through bolts, one end of the adjusting plate (36) is movably provided with a tensioning wheel (37), the tensioning wheel (37) is in contact with the chain (34). The moving arm (30) is provided with a support rod (32), one end of the support rod (32) is movably provided with a roller (310), the roller (310) is movably installed in an arc-shaped groove (6) formed in the inner wall of the ship board (1), one end of the moving arm (30) provided with the driven sprocket (33) is further fixedly installed with a driving motor (312), the output shaft of the driving motor (312) penetrates the moving arm (30) and is fixedly installed with a driving gear (31).

2. A launch and recovery mechanism for a lateral thruster of a marine vessel according to claim 1, characterised in that: The rotating drum (38) is fixedly installed with a propeller (4), the propeller (4) includes an adjusting shaft pipe (40), the adjusting shaft pipe (40) is provided in a T shape, the top of the adjusting shaft pipe (40) is fixedly installed with the rotating drum (38), the adjusting shaft pipe (40) is provided with a driving shaft (47), the driving shaft (47) is movably installed with the rotating drum (38) through a bearing (44), both ends of the driving shaft (47) are fixedly installed with a driven gear (43) and a driving bevel gear (48), wherein the driven gear (43) is engagedly connected with the driving gear (31).

3. A launch and recovery mechanism for a lateral thruster of a marine vessel according to claim 2, characterised in that: The driving bevel gear (48) is connected with the driven bevel gear (45) on one side; the driven bevel gear (45) is fixedly installed with the propeller (42) through the driven rotating shaft (46); and the driven rotating shaft (46) is movably installed in the horizontal section of the adjusting shaft tube (40).

4. A launch and recovery mechanism for a lateral thruster of a marine vessel according to claim 3, characterised in that: One end of the adjusting shaft tube (40) is integrally provided with the protective shell (41) outside the propeller (42).

5. A launch and recovery mechanism for a lateral thruster of a marine vessel according to claim 1, characterized in that: The fixedly installed placing plate (5) is arranged on the inner wall of the boat plate (1) to facilitate the storage of the propeller (4).

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