Retracting and releasing mechanism for lifting type propeller

Abstract

The retracting and releasing mechanism comprises a retracting and releasing bin, a propeller body is connected to the interior of the left side of the retracting and releasing bin, a propeller is connected to the bottom of the propeller body, and a bin door is rotationally arranged at the bottom of the right side of the retracting and releasing bin through a rotating shaft; the fixed column is installed on the inner wall of the rear side of the collecting and releasing bin, the outer side of the fixed column is sleeved with a circular plate, and the circular plate is slidably connected with spray pipes used for cleaning at equal angles; and the rotary cleaning mechanism is arranged on the rear side of the collecting and releasing bin and on the circular plate, and the rotary cleaning mechanism cleans the propeller by driving a spray pipe to move and rotate, so that corrosion loss caused by seawater and attached microorganisms is reduced. According to the retracting and releasing mechanism for the lifting type thruster, after the thruster is retracted, the spraying pipe can be driven to blow air to remove water from a propeller of the thruster in a rotary opening and closing mode, and then corrosion loss of the thruster caused by seawater and attached microorganisms is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and in particular to a retractable and retractable mechanism for a lifting propeller. Background Art

[0002] A ship's propeller is a key component that converts the mechanical energy generated by the propulsion system into thrust in the water, thereby propelling the vessel forward. Typically composed of multiple blades rotating around a central axis, the propeller's motion creates pressure changes on the water surface, generating thrust output. Widely used on cargo ships, yachts, and various marine vessels, marine propellers play an indispensable role in modern shipping and marine activities. Through continuous technological development and optimized design, the performance and environmental standards of marine propellers are continuously improved to meet growing demands.

[0003] In a retracting and extending device for a shaftless auxiliary propeller disclosed in publication number CN114604405B, a retracting and extending arm locking pin assembly is arranged in a cabin, and a first pin hole which can be locked and matched with the retracting and extending arm locking pin assembly in a first state and a second pin hole which can be locked and matched with the retracting and extending arm locking pin assembly in a second state are arranged on the retracting and extending arm rib plate, so as to realize locking of the shaftless auxiliary propeller in the first state and the second state, thereby ensuring the stability of the shaftless auxiliary propeller state, a retracting and extending arm locking pin assembly is provided, and a weakening groove which matches the retracting and extending arm locking base is provided on the retracting and extending arm locking pin, when the retracting and extending arm locking pin cannot be pulled out normally, the retracting and extending arm rib plate can be radially driven by the retracting and extending arm driving hydraulic cylinder, so that the retracting and extending arm locking pin is broken at the weakening groove under the action of the retracting and extending arm locking base, thereby preventing the shaftless auxiliary propeller from being unable to be retracted or lowered due to abnormality of the retracting and extending arm locking pin, thereby ensuring the normal operation of the ship in an emergency state.

[0004] The above scheme still has the following problems during use: when performing the retraction and deployment operation, after the retraction and deployment arm retracts the propeller into the interior of the ship by rotating, the propeller will carry residual seawater and attached microbial attachments, etc., and after entering the interior of the ship and closing the hatch, the seawater will remain in the ship's cabin for a long time. The salt and other chemical substances in the seawater are easily affected by corrosion of internal metal parts, thereby reducing the service life of the ship's metal parts. The attached microorganisms may affect the performance of the propeller and even damage the propeller, and are not conducive to keeping the propeller clean. At the same time, when the propeller is stored in a warehouse or equipment cabin, the humidity is too high, causing damage to other equipment. Therefore, a retraction and deployment mechanism for a lifting propeller is designed to reduce corrosion damage to ship equipment and metal parts, improve the stability of the propeller after retraction, reduce the working load of the first electric push rod, reduce the residue of seawater and microorganisms on the propeller, and automatically close to prevent water ingress to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a retractable mechanism for a lifting propeller, so as to solve the problem of the retractable mechanism of the lifting propeller currently on the market proposed in the above background technology. When in use, after the retractable arm retracts the propeller into the interior of the ship by rotating, the propeller will carry residual seawater and attached microbial attachments, thereby affecting the service life and performance of the propeller, and even damaging other equipment.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a retractable mechanism for a lifting propeller, comprising a retractable compartment disposed at the bottom of a vessel, wherein the left side of the retractable compartment is rotatably connected to a propeller body, the bottom of the propeller body is connected to a propeller, and a compartment door is rotatably provided at the right bottom of the retractable compartment via a rotating shaft; A cam, the cam being fixed to the top rear side of the pusher body, and the top of the cam being hinged to a first electric push rod, and the first electric push rod being hinged to the right top of the retractable bin across the top of the retractable bin, and the right top of the bin door being hinged to a second electric push rod, and the top of the second electric push rod being hinged to the right inner wall of the retractable bin; It also includes: a fixed column, which is installed on the rear inner wall of the storage bin, and a circular plate is sleeved on the outer side of the fixed column, and a nozzle for cleaning is slidably connected to the circular plate at an equal angle; A rotating cleaning mechanism is provided on the rear side of the storage compartment and on the circular plate, and cleans the propeller by driving the nozzle to move and rotate, thereby reducing corrosion losses caused by seawater and attached microorganisms; An auxiliary positioning assembly is provided at the rear of the left side of the storage compartment, and the auxiliary positioning assembly positions the propeller body after rotation; A drainage component is arranged in the cabin door, and the drainage component discharges the residual seawater in time to reduce the residual amount. A sealing plate is fixedly installed at one end of the cabin door, and the sealing plate is arranged on the lower side of the retractable cabin.

[0007] Preferably, the rotary cleaning mechanism includes a pull rope wound around the rotating shaft, and the top of the pull rope is connected to the first tooth plate, and the first tooth plate is laterally slidably connected to the rear inner wall of the storage bin, and the right side of the first tooth plate is slidably sleeved in the sleeve installed on the inner rear part of the storage bin through the first spring, and at the same time, the first tooth plate forms a horizontal sliding structure through the pull rope and the first spring.

[0008] Preferably, the first gear is symmetrically meshed and connected below the first tooth plate, and the first gear is fixed to the rear end of the screw, and the screw is symmetrically arranged in the inner wall of the rear side of the storage bin, and the threaded connection of the screw is connected to the mounting bracket, and at the same time, the mounting bracket and the storage bin penetration part are arranged as a rectangular structure, the mounting bracket is arranged as a "U"-shaped structure when viewed from above, and the front side bearing of the mounting bracket is connected to the rear side of the circular plate.

[0009] Preferably, the circular plate slides on the fixed column through the mounting frame and the screw, and the middle part of the circular plate is set as a hollow structure, and a protrusion is fixedly installed on the inner wall of the hollow part of the circular plate, and the protrusion is slidably connected to the guide groove. At the same time, the guide groove is opened on the outside of the fixed column, the front half of the guide groove is set as a linear structure, and the back half of the guide groove is set as a spiral structure.

[0010] Preferably, the circular plate forms a movable rotating structure through protrusions and guide grooves, and a frustum is fixed to the outside of the right side of the fixed column, and the inclined surface of the frustum conflicts with the movement of the longitudinal rod, and the longitudinal rod is connected to the front side of the circular plate through a rectangular groove with equal angles for sliding. At the same time, the front side of the circular plate is slidably connected to a nozzle through an arc groove, and the movement directions of the nozzle and the longitudinal rod are relatively arranged.

[0011] Preferably, a second tooth plate is fixedly installed at the end of the longitudinal rod, and the outer side of the second tooth plate is meshed with a second gear, and the outer surface of the other side of the second gear is meshed with a third tooth plate, and the second tooth plate, the second gear and the third tooth plate are arranged in groups at equal angles in the middle of the inner side of the circular plate, and a nozzle is fixed on the outer side of the third tooth plate.

[0012] Preferably, the auxiliary positioning assembly includes a piston rod, and the piston rod is fixed to the rear side of the mounting frame, and the piston rod is slidably connected to the first oil chamber, and the first oil chamber is connected to the second oil chamber through a connecting pipe, and the second oil chamber is opened on the inner wall behind the left side of the circular plate.

[0013] Preferably, the front side of the second oil chamber is slidably connected with an insertion rod, and the front side of the insertion rod is engaged with the card slot, and the card slot is opened on the top rear side of the propeller body, and the propeller body forms an auxiliary positioning mechanism through the insertion rod and the card slot.

[0014] Preferably, the drainage assembly includes a partition, and the partition is horizontally penetrated and slidably connected to the middle part of the inner side of the warehouse door, and a second spring is installed between the right side of the partition and the inner wall of the warehouse door, and the partition and the warehouse door are respectively provided with a first through hole and a second through hole at equal angles, and the first through hole and the second through hole are staggered with each other after the warehouse door is closed. Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the retractable and deployable mechanism for the lift-type propeller of the present invention are as follows: when in use, after the propeller is retracted, the nozzle can be driven by rotating and opening to blow air and remove water from the propeller of the propeller, thereby reducing the corrosion loss of the propeller caused by residual seawater and attached microorganisms, and the propeller can be positioned and reinforced after rotation, reducing the working load of the electric push rod. At the same time, the hatch is provided with a water filtering mechanism to reduce the residual seawater. The specific contents are as follows: 1. Through the provided rotating cleaning mechanism, when the propeller is retracted, the circular plate drives the nozzle to rotate and move at the same time, thereby forming a moving trajectory parallel to the propeller blades, thereby moving from the outside to the inside, cleaning the seawater remaining between the propeller blades, reducing the residual seawater and attached microorganisms, and reducing the corrosion damage to ship equipment and metal parts. When the circular plate rotates, the longitudinal rod will conflict with the hypotenuse of the frustum, thereby pushing the longitudinal rod to slide. After the longitudinal rod slides, it will drive the second tooth plate to move synchronously. After the second tooth plate moves, it will drive the second gear to rotate. After the second gear rotates, it will drive the third tooth plate to slide relatively. The third tooth plate will drive the nozzle to move toward the center position. In conjunction with the rotation of the circular plate, the nozzle will spirally open and close, thereby better fitting the shape of the propeller blades to perform cleaning operations from the outside to the inside. 2. The auxiliary positioning assembly is provided so that after the propeller is retracted, the insertion rod can be connected to the slot, thereby further improving the stability of the propeller after retraction and reducing the working load of the first electric push rod; 3. By setting up a drainage component, when the hatch is rotated and closed, the seawater on the propeller will fall due to gravity to cooperate with the cleaning, reducing the residual seawater and microorganisms on the propeller, and the seawater will flow out from the first through hole and the second through hole on the hatch and the partition. When the hatch is completely closed, the partition will be squeezed back into the interior of the hatch, thereby compressing the second spring. At this time, the first through hole and the second through hole will be in a dislocated state, thereby preventing external water from entering the interior of the hatch body, so that it can drain water in time and automatically close to prevent water ingress. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the retractable mechanism of the thruster in use; Figure 2 This is a schematic diagram of the three-dimensional structure of the retractable mechanism of the thruster in the retracted state of the present invention; Figure 3 This is a schematic cross-sectional view of the connection between the retractable bin and the retractable mechanism of the present invention; Figure 4 This is a partial cross-sectional structural diagram of the retractable bin of the present invention; Figure 5 This is a schematic diagram of the rear cross-section structure of the connection between the first tooth plate, the first gear, the mounting frame and the circular plate of the present invention; Figure 6 This is a schematic diagram of the distribution structure of the longitudinal rods and nozzles on the circular plate of the present invention; Figure 7 This is a schematic diagram of the front cross-section structure of the linkage between the longitudinal rod and the nozzle of the present invention; Figure 8 For the present invention Figure 7 A in the middle is an enlarged structural diagram; Figure 9 This is a rear view diagram of the hatch and propeller distribution structure of the present invention; Figure 10 It is a schematic diagram of the front cross-section structure of the warehouse door of the present invention.

[0017] In the figure: 1, storage compartment; 2, propeller body; 3, propeller; 4, cam; 5, first electric push rod; 6, compartment door; 7, rotating shaft; 8, second electric push rod; 9, fixing column; 10, circular plate; 11, nozzle; 12, rotary cleaning mechanism; 1201, pull rope; 1202, first tooth plate; 1203, sleeve; 1204, first spring; 1205, first gear; 1206, screw; 1207, mounting bracket; 1208, bump; 120 9. Guide groove; 1210. Cone; 1211. Longitudinal rod; 1212. Second tooth plate; 1213. Second gear; 1214. Third tooth plate; 13. Auxiliary positioning assembly; 1301. Piston rod; 1302. First oil chamber; 1303. Second oil chamber; 1304. Insert rod; 1305. Slot; 14. Drain assembly; 1401. Partition; 1402. Second spring; 1403. First through hole; 1404. Second through hole; 18. Sealing gasket. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example 1: In order to promptly remove the residual seawater and attached microorganisms when the propeller is retracted, to avoid corrosion of the propeller and other equipment, and to reduce the service life of the ship components, the following solution is proposed. Figure 1 - Figure 9 As shown, It includes a storage compartment 1 placed at the bottom of the ship, and the left side of the storage compartment 1 is rotatably connected to the propeller body 2, and the bottom of the propeller body 2 is connected to the propeller 3, and the right bottom of the storage compartment 1 is rotatably connected to a compartment door 6 and a cam 4 via a rotating shaft 7. The cam 4 is fixed to the top rear side of the propeller body 2, and the top of the cam 4 is hinged to a first electric push rod 5, and the first electric push rod 5 spans the top of the storage compartment 1 and is hinged to the right top of the storage compartment 1. The right top of the compartment door 6 is hinged to a second electric push rod 8, and the top of the second electric push rod 8 is hinged to the right inner wall of the storage compartment 1; When driving, the first electric push rod 5 extends, so that the propeller body 2 and the propeller 3 are rotated to the bottom of the ship for use, and the hatch 6 is closed. When the propeller body 2 is retracted, the second electric push rod 8 extends, and the hatch 6 rotates around the rotation axis 7 and then expands, making room for the propeller body 2 and the propeller 3 to rotate. Then the first electric push rod 5 retracts, and then drives the propeller body 2 to rotate to a horizontal position and retract into the inside of the storage compartment 1 through the cam 4. Then the second electric push rod 8 drives the hatch 6 to rotate and close again, so as to facilitate the next use. Please refer to the following for details: Figure 1 - Figure 7 As shown, a fixed column 9 is installed on the inner wall of the rear side of the storage bin 1, and a circular plate 10 is sleeved on the outer side of the fixed column 9. A nozzle 11 for cleaning is slidably connected at an equal angle to the circular plate 10. The nozzle 11 is connected to the built-in high-speed air pump through a pipeline. A rotating cleaning mechanism 12 is provided on the rear side of the storage bin 1 and on the circular plate 10. The rotating cleaning mechanism 12 cleans the propeller 3 by driving the nozzle 11 to move and rotate, thereby reducing corrosion loss caused by seawater and attached microorganisms. When the propeller body 2 is retracted into the storage compartment 1, the compartment door 6 is closed, which in turn drives the rotating cleaning mechanism 12 to extend forward to clean the propeller 3 at the end of the propeller body 2, thereby reducing the residual seawater and attached microorganisms and reducing corrosion damage to ship equipment and metal parts; Please refer to the following for details: Figure 3 - Figure 5As shown, the rotary cleaning mechanism 12 includes a pull rope 1201 wound around the rotating shaft 7, and the top of the pull rope 1201 is connected to the first tooth plate 1202, and the first tooth plate 1202 is horizontally slidably connected to the rear inner wall of the storage bin 1, and the right side of the first tooth plate 1202 is slidably sleeved in the sleeve 1203 installed at the rear inner part of the storage bin 1 through the first spring 1204, and the first tooth plate 1202 forms a horizontal sliding structure through the pull rope 1201 and the first spring 1204. A first gear 1205 is symmetrically meshed with the lower portion of the toothed plate 1202, and the first gear 1205 is fixed to the rear end of a screw 1206. The screw 1206 is symmetrically arranged in the inner wall of the rear side of the storage bin 1, and the screw 1206 is threadedly connected to a mounting bracket 1207. The mounting bracket 1207 and the storage bin 1 are arranged in a rectangular structure at a portion extending through the mounting bracket 1207. The mounting bracket 1207 is arranged in a "U" shape when viewed from above, and the front bearing of the mounting bracket 1207 is connected to the rear side of the circular plate 10. When the door 6 is closed, the pull rope 1201 on the rotating shaft 7 is tightened, and the pull rope 1201 drives the first toothed plate 1202 to compress the first spring 1204 and slide on the sleeve 1203. The movement of the first toothed plate 1202 drives the first gear 1205 to rotate. The rotation of the first gear 1205 drives the screw 1206 to rotate, so that the mounting bracket 1207 drives the circular plate 10 to slide synchronously outside the fixed column 9. Please refer to the following for details: Figure 3 - Figure 7 As shown, the circular plate 10 slides on the fixed column 9 through the mounting bracket 1207 and the screw 1206, and the middle portion of the circular plate 10 is set as a hollow structure, and a protrusion 1208 is fixedly installed on the inner wall of the hollow portion of the circular plate 10, and the protrusion 1208 is slidably connected to the guide groove 1209. At the same time, the guide groove 1209 is opened on the outside of the fixed column 9, the front half of the guide groove 1209 is set as a linear structure, and the rear half of the guide groove 1209 is set as a spiral structure; When the circular plate 10 moves on the fixed column 9, the protrusion 1208 slides along the guide groove 1209. The front half of the guide groove 1209 is set in a straight line, so that the circular plate 10 drives the nozzle 11 to move in a straight line to the position of the propeller 3. Then, when the circular plate 10 continues to move, the protrusion 1208 enters the spiral part of the guide groove 1209, thereby allowing the circular plate 10 to move and rotate at the same time. Please refer to the following for details: Figure 1 - Figure 8As shown, the circular plate 10 forms a movable rotating structure through the protrusion 1208 and the guide groove 1209, and a round table 1210 is fixed to the outside of the right side of the fixed column 9, and the inclined surface of the round table 1210 is in conflict with the movement of the longitudinal rod 1211, and the longitudinal rod 1211 is connected to the front side of the circular plate 10 by sliding at equal angles through the rectangular groove, and the front side of the circular plate 10 is slidably connected to the nozzle 11 through the arc groove, and the movement directions of the nozzle 11 and the longitudinal rod 1211 are arranged relative to each other, and the end of the longitudinal rod 1211 is fixedly installed with a second tooth plate 1212, and the outer side of the second tooth plate 1212 is meshed with the second gear 1213, and the other side of the second gear 1213 is meshed with the outer surface of the third tooth plate 1214, and the second tooth plate 1212, the second gear 1213 and the third tooth plate 1214 are arranged in groups at equal angles on the inner middle part of the circular plate 10, and the outer side of the third tooth plate 1214 is fixed with the nozzle 11; When the circular plate 10 starts to rotate, the longitudinal rod 1211 will come into conflict with the hypotenuse of the truncated table 1210, causing the longitudinal rod 1211 to be pushed to slide. After the longitudinal rod 1211 slides, it will drive the second tooth plate 1212 to move synchronously. After the second tooth plate 1212 moves, it will drive the second gear 1213 to rotate. After the second gear 1213 rotates, it will drive the third tooth plate 1214 to slide relatively. The third tooth plate 1214 will drive the nozzle 11 to move toward the center position, and cooperate with the rotation of the circular plate 10, so that the nozzle 11 will spirally open and close. The nozzle 11 is connected to the built-in high-speed air pump through a pipeline, which can spray high-speed airflow, and can better fit the shape of the propeller 3 blades to perform cleaning operations from the outside to the inside, thereby reducing the corrosion of seawater to equipment and components.

[0020] Example 2: In order to improve the stability of the thruster when it is retracted and reduce the working load of the electric push rod, the following solution is proposed. Please refer to Figure 3 - Figure 5 and Figure 9 As shown, The auxiliary positioning assembly 13 is provided at the rear of the left side of the storage bin 1, and the auxiliary positioning assembly 13 positions the propeller body 2 after rotation. The auxiliary positioning assembly 13 includes a piston rod 1301, and the piston rod 1301 is fixed to the rear side of the mounting bracket 1207, and the piston rod 1301 is slidably connected to the first oil chamber 1302, and the first oil chamber 1302 is connected to the second oil chamber 1303 through a connecting pipe. At the same time, the second oil chamber 1303 is opened on the inner wall of the left rear side of the circular plate 10, and the front side of the second oil chamber 1303 is slidably connected with an insertion rod 1304, and the front side of the insertion rod 1304 is engaged with the card slot 1305, and the card slot 1305 is opened on the top rear side of the propeller body 2, and the propeller body 2 forms an auxiliary positioning mechanism through the insertion rod 1304 and the card slot 1305; When the mounting bracket 1207 is extended, it will synchronously drive the piston rod 1301 to move in the first oil chamber 1302, and then squeeze the oil in the first oil chamber 1302 into the second oil chamber 1303. After the oil in the second oil chamber 1303 increases, it will push the insertion rod 1304 to extend. After the insertion rod 1304 is extended, it will be plugged into the slot 1305 on the rear side of the propeller body 2, so that the propeller body 2 is positioned and fixed in the retracted state, thereby reducing the working load of the first electric push rod 5.

[0021] Example 3: In order to improve the timely discharge of seawater when the propeller is retracted, the following solution is proposed. Please refer to Figure 1 - Figure 3 and Figure 9 - Figure 10 As shown, Drain assembly 14, the drainage assembly 14 is arranged in the warehouse door 6, and the drainage assembly 14 promptly discharges the residual seawater to reduce the residual amount. A sealing plate 18 is fixedly installed at one end of the warehouse door 6, and the sealing plate 18 is arranged on the lower side of the storage compartment 1. The drainage assembly 14 includes a partition 1401, and the partition 1401 is horizontally penetrated and slidably connected to the middle part of the inner side of the warehouse door 6, and a second spring 1402 is installed between the right side of the partition 1401 and the inner wall of the warehouse door 6, and the partition 1401 and the warehouse door 6 are respectively provided with a first through hole 1403 and a second through hole 1404 at equal angles. At the same time, after the warehouse door 6 is closed, the first through hole 1403 and the second through hole 1404 are staggered with each other. When the warehouse door 6 is closed, the sealing plate 18 is used to prevent seawater from entering the interior of the storage compartment 1, which can increase the sealing performance; During the rotation and closing process of the warehouse door 6, the seawater on the propeller 3 will fall due to gravity to cooperate with the cleaning, reducing the residual seawater and microorganisms on the propeller 3, and the seawater will flow out from the first through hole 1403 and the second through hole 1404 on the warehouse door 6 and the partition 1401. When the warehouse door 6 is completely closed, the partition 1401 will be squeezed back into the interior of the warehouse door 6, thereby compressing the second spring 1402. At this time, the first through hole 1403 and the second through hole 1404 will be in a dislocated state, thereby preventing external water from entering the interior of the cabin, so that it can both drain water in time and automatically close to prevent water from entering.

[0022] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0023] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A retractable mechanism for a lifting propeller, comprising a retractable compartment (1) disposed at the bottom of a ship, wherein the left side of the retractable compartment (1) is internally rotatably connected to a propeller body (2), the bottom of the propeller body (2) is connected to a propeller (3), and the right side bottom of the retractable compartment (1) is rotatably provided with a compartment door (6) via a rotating shaft (7); A cam (4), wherein the cam (4) is fixed to the top rear side of the propeller body (2), and the top of the cam (4) is hinged to a first electric push rod (5), and the first electric push rod (5) spans the top of the storage bin (1) and is hinged to the right top of the storage bin (1), and the right top of the bin door (6) is hinged to a second electric push rod (8), and the top of the second electric push rod (8) is hinged to the right inner wall of the storage bin (1); Its characteristics are: Also includes: A fixed column (9), the fixed column (9) being mounted on the rear inner wall of the storage bin (1), and a circular plate (10) being sleeved on the outer side of the fixed column (9), and a nozzle (11) for cleaning being slidably connected at an equal angle to the circular plate (10); A rotating cleaning mechanism (12), the rotating cleaning mechanism (12) being arranged on the rear side of the storage bin (1) and on the circular plate (10), and the rotating cleaning mechanism (12) cleaning the propeller (3) by driving the nozzle (11) to move and rotate, thereby reducing corrosion loss caused by seawater and attached microorganisms; An auxiliary positioning component (13), the auxiliary positioning component (13) is arranged at the rear of the left side inside the storage compartment (1), and the auxiliary positioning component (13) positions the propeller body (2) after rotation; A drainage assembly (14) is provided in the warehouse door (6), and the drainage assembly (14) timely discharges the residual seawater to reduce the residual amount, and a sealing plate (18) is fixedly installed at one end of the warehouse door (6), and the sealing plate (18) is provided on the lower side of the storage and unloading warehouse (1).

2. The retractable and retractable mechanism for a lifting thruster according to claim 1, characterized in that: The rotary cleaning mechanism (12) includes a pull rope (1201) wound around the rotating shaft (7), and the top of the pull rope (1201) is connected to the first tooth plate (1202), and the first tooth plate (1202) is laterally slidably connected to the rear inner wall of the storage bin (1), and the right side of the first tooth plate (1202) is slidably sleeved in a sleeve (1203) installed at the rear inner side of the storage bin (1) through a first spring (1204), and at the same time, the first tooth plate (1202) forms a horizontal sliding structure through the pull rope (1201) and the first spring (1204).

3. The retractable and retractable mechanism for a lifting thruster according to claim 2, characterized in that: A first gear (1205) is symmetrically meshed and connected below the first tooth plate (1202), and the first gear (1205) is fixed to the rear end of the screw (1206), and the screw (1206) is symmetrically arranged in the inner wall of the rear side of the storage bin (1), and the screw (1206) is threadedly connected to the mounting frame (1207), and the portion through which the mounting frame (1207) and the storage bin (1) pass is configured as a rectangular structure, the mounting frame (1207) is configured as a "U"-shaped structure when viewed from above, and the front bearing of the mounting frame (1207) is connected to the rear side of the circular plate (10).

4. The retractable and retractable mechanism for a lifting thruster according to claim 3, characterized in that: The circular plate (10) slides on the fixed column (9) through the mounting frame (1207) and the screw (1206), and the middle part of the circular plate (10) is set as a hollow structure, and a protrusion (1208) is fixedly installed on the inner wall of the hollow part of the circular plate (10), and the protrusion (1208) is slidably connected to the guide groove (1209), and the guide groove (1209) is opened on the outside of the fixed column (9), the front half of the guide groove (1209) is set as a linear structure, and the rear half of the guide groove (1209) is set as a spiral structure.

5. The retractable and retractable mechanism for a lifting propeller according to claim 4, characterized in that: The circular plate (10) forms a movable rotating structure through a protrusion (1208) and a guide groove (1209), and a round table (1210) is fixed to the right outer side of the fixed column (9), and the inclined surface of the round table (1210) and the longitudinal rod (1211) move in conflict, and the longitudinal rod (1211) is connected to the front side of the circular plate (10) through a rectangular groove with equal angles. At the same time, the front side of the circular plate (10) is connected to the nozzle (11) through an arc groove, and the movement directions of the nozzle (11) and the longitudinal rod (1211) are arranged relative to each other.

6. The retractable and retractable mechanism for a lifting propeller according to claim 5, characterized in that: A second tooth plate (1212) is fixedly mounted on the end of the longitudinal rod (1211), and the outer side of the second tooth plate (1212) is meshedly connected to the second gear (1213), and the outer side of the other side of the second gear (1213) is meshedly connected to the third tooth plate (1214), and the second tooth plate (1212), the second gear (1213) and the third tooth plate (1214) are arranged in groups at equal angles in the middle of the inner side of the circular plate (10), and a nozzle (11) is fixed to the outer side of the third tooth plate (1214).

7. The retractable and retractable mechanism for a lifting thruster according to claim 1, characterized in that: The auxiliary positioning assembly (13) includes a piston rod (1301), and the piston rod (1301) is fixed to the rear side of the mounting frame (1207), and the piston rod (1301) is slidably connected to the first oil chamber (1302), and the first oil chamber (1302) is connected to the second oil chamber (1303) through a connecting pipe, and the second oil chamber (1303) is opened on the inner wall behind the left side of the circular plate (10).

8. The retractable and retractable mechanism for a lifting thruster according to claim 7, characterized in that: The front side of the second oil chamber (1303) is slidably connected to an insertion rod (1304), and the front side of the insertion rod (1304) is engaged with a card slot (1305), and the card slot (1305) is opened on the top rear side of the propeller body (2), and the propeller body (2) forms an auxiliary positioning mechanism through the insertion rod (1304) and the card slot (1305).

9. The retractable and retractable mechanism for a lifting thruster according to claim 1, characterized in that: The drainage assembly (14) includes a partition (1401), and the partition (1401) is slidably connected to the middle part of the inner side of the warehouse door (6) in a transverse direction, and a second spring (1402) is installed between the right side of the partition (1401) and the inner wall of the warehouse door (6), and a first through hole (1403) and a second through hole (1404) are respectively provided on the partition (1401) and the warehouse door (6) at equal angles, and the first through hole (1403) and the second through hole (1404) are displaced from each other when the warehouse door (6) is closed.

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