Bow thruster tunnel cleaning system

Abstract

The invention relates to the technical field of ship cleaning, in particular to a bow thruster tunnel cleaning system which can effectively remove attachments attached to the inner wall of a bow thruster tunnel and the surface of a propeller through combination of sliding scraping and water spraying flushing. In the whole process, people do not need to enter the bow thruster tunnel, operation is easy, and working efficiency is improved. And meanwhile, the influence of external factors is avoided, attachments on the surface of the bow thruster tunnel and the surface of the propeller can be cleaned in real time, and the applicability is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of ship cleaning, in particular to a bow thruster tunnel cleaning system. Background Art

[0002] When a ship is docked for extended periods or frequently underwater, microorganisms and impurities in the water may adhere to the bow thruster tunnel walls and propeller surfaces. Debris on the tunnel walls and propeller surfaces can not only cause material corrosion but also affect the flow field within the tunnel, thereby reducing propeller propulsion efficiency and the bow thruster's service life. Therefore, timely removal of debris from the bow thruster tunnel walls and propellers is crucial to ensure the long-term proper operation of the bow thruster tunnel and propeller. Currently, maintenance personnel typically enter the bow thruster tunnel and perform manual cleaning using common cleaning tools such as scrapers and mops. However, manual cleaning with these common tools is inefficient, impacting the vessel's normal operating cycle. Furthermore, since manual cleaning of the bow thruster tunnel depends on numerous factors, such as the cleaning personnel, the ship's docking time, and the duration of the cleaning process, timely removal of debris from the bow thruster can be difficult, potentially impacting the vessel's proper operation. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a bow thruster tunnel cleaning system, which is used to solve the problem that the prior art uses conventional cleaning tools and manually enters the bow thruster tunnel to clean attachments on the bow thruster tunnel and propeller surface, which is inefficient and cannot be cleaned in time due to external factors such as cleaning personnel, ship docking, and cleaning time.

[0004] To achieve the above-mentioned and other related objectives, the present invention provides a bow thruster tunnel cleaning system, comprising a cleaning device slidably disposed within the bow thruster tunnel, a motion mechanism for driving the cleaning device to slide back and forth within the bow thruster tunnel, and a remote control system, wherein both the cleaning device and the motion mechanism are electrically connected to the remote control system to remotely control the movements of the cleaning device and the motion mechanism.

[0005] The cleaning device includes a device body, a water supply pipeline, a water injection port, a water flow trough and a water spray channel. The water injection port is opened on the device body, one end of the water supply pipeline is connected to the water injection port, and the other end is connected to an external water source. The remote control system can remotely control the on and off of the external water source. The water flow trough and the water spray channel are both opened inside the device body, one end of the water flow trough is connected to the water injection port, and the other end is connected to the water spray channel. The water spray channel can spray cleaning water to the outside of the device body. The device body can slide along the inner wall of the bow thruster tunnel and can remove attachments on the inner wall of the bow thruster tunnel while sliding.

[0006] Optionally, the side wall of the device body is provided with a plurality of legs spaced apart along the circumferential direction and having a radial length direction;

[0007] The motion mechanism includes a plurality of grooves spaced apart along the inner wall of the bow thrust tunnel in the circumferential direction and a power assembly, wherein the plurality of legs are arranged in a one-to-one correspondence with the plurality of grooves, the grooves being arranged along the length direction of the bow thrust tunnel, the legs being able to slide along the grooves, and the power assembly being used to provide power for the movement of the legs;

[0008] The power assembly includes a conveyor belt arranged in the groove and a fixed block fixed on the conveyor belt, the fixed block is completely located in the groove, and the supporting legs are detachably fixed on the fixed block.

[0009] Optionally, the cleaning device further comprises a nozzle, which is arranged on a side wall of the device body and is connected to the water spray channel;

[0010] One end of the water spray channel away from the water flow trough is sealed, and a flexible water pipe is connected between the water spray channel and the nozzle.

[0011] Optionally, the water spray channel can be set to be single-sided or double-sided;

[0012] Correspondingly, the nozzles are also arranged on one side or both sides of the device body.

[0013] Optionally, the nozzle is hinged on the side wall of the device body and can rotate in a vertical direction;

[0014] The device body is also provided with a driving assembly, which is used to drive the nozzle to rotate;

[0015] The driving assembly includes a driving motor, a driving cable pipeline, a connecting rod and a rotating rod. The driving motor is fixedly arranged on the device body, one end of the driving cable pipeline is connected to an external power supply, and the other end is connected to the driving motor. The output end of the driving motor is fixedly connected to one end of the rotating rod, and the other end of the rotating rod is hinged to one end of the connecting rod. The end of the connecting rod away from the rotating rod is hinged to the nozzle.

[0016] Optionally, the cleaning device further includes a accommodating cavity, which is arranged on the device body, and an accommodating cavity is opened on the accommodating cavity. The drive motor is arranged in the accommodating cavity, and one end of the connecting rod away from the rotating rod extends out of the accommodating cavity and is hinged to the nozzle. When the connecting rod extends out of the accommodating cavity, a watertight device is provided at the intersection with the accommodating cavity to ensure the sealing of the accommodating cavity.

[0017] Optionally, a boosting assembly is provided in the water spray channel, and the boosting assembly includes a boosting structure, a water inlet orifice plate and a water outlet orifice plate. The boosting structure is provided in the water spray channel and close to the outlet end of the water spray channel. The boosting structure is used to pressurize the cleaning water. The water inlet orifice plate is vertically provided in the water spray channel and close to one end of the water flow trough. The water outlet orifice plate is vertically provided in the water spray channel and is located between the water inlet orifice plate and the boosting structure. The water inlet orifice plate and the water outlet orifice plate can rotate relative to each other around their own axes.

[0018] Optionally, the boost assembly further includes a rotating motor, a rotating cable pipeline, a connecting shaft and an installation cavity, the rotating motor is arranged in the installation cavity, one end of the rotating cable pipeline is connected to an external power supply, and the other end passes through the installation cavity and is connected to the rotating motor, one end of the connecting shaft is coaxially fixedly connected to the output shaft of the rotating motor, and the other end extends out of the installation cavity and is coaxially fixedly connected to the water inlet orifice plate or the water outlet orifice plate, and the installation cavity is fixedly arranged in the water spray channel and always maintains a water-based seal.

[0019] Optionally, the device body is in an annular or elliptical shape as a whole, the water flow groove is opened along the circumference of the device body and is annular as a whole, and a plurality of water spray channels are evenly spaced along the circumference of the device body;

[0020] The device body is in the shape of a circular grid as a whole. The water flow groove is arranged along the grid plate of the device body. A plurality of water spray channels are arranged along the grid plate of the device body.

[0021] Optionally, the outer side wall of the device body is made of elastic material or is coated with elastic material, so that the device body can be vertically or obliquely arranged inside the bow thruster tunnel.

[0022] In a bow thruster tunnel cleaning system according to the present invention, a cleaning device is positioned within the bow thruster tunnel. A remote control system controls the movement of a motion mechanism, driving the device body to slide back and forth along the length of the bow thruster tunnel. This mechanism scrapes debris from the bow thruster tunnel's inner wall, thereby cleaning the tunnel's inner wall. During the sliding process, the remote control system controls an external water source to deliver clean water to the water inlet. The clean water flows through a water flow channel and a water spray channel before being ejected through the water spray channel. This rinses away debris scraped off by the device body, which is then discharged from the bow thruster tunnel with the water flow, thereby cleaning the tunnel. Simultaneously, when the device body moves near the propeller, the clean water ejected from the water spray channel also cleans debris from the propeller's surface. The combination of sliding scraping and water spraying effectively removes debris from the bow thruster tunnel's inner wall and propeller surfaces. The entire process does not require personnel to enter the bow thruster tunnel, simplifying operation and improving work efficiency. At the same time, it is not affected by external factors and can clean the attachments on the bow thruster tunnel and propeller surface in real time, which makes it more applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 1 is a schematic diagram of the overall structure of a bow thruster tunnel cleaning system according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the support legs and the conveyor belt in one embodiment of the present invention;

[0025] Figure 3 1 is a schematic diagram of the overall structure of a cleaning device in one embodiment of the present invention;

[0026] Figure 4 Schematic diagram of the position structure of the boosting assembly in one embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of the connection structure of a rotating electrical machine in one embodiment of the present invention;

[0028] Figure 6 Schematic diagram of the structure of the water inlet orifice plate in one embodiment of the present invention;

[0029] Figure 7 Schematic diagram of the structure of the water outlet orifice plate in one embodiment of the present invention;

[0030] Figure 8 is a schematic diagram of the overall structure of a cleaning device in another embodiment of the present invention;

[0031] Figure 9 Schematic diagram of the connection structure of the drive motor in one embodiment of the present invention. DETAILED DESCRIPTION

[0032] Refer to the following Figures 1 to 9 To describe a bow thruster tunnel cleaning system of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0033] Unless otherwise expressly defined or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be broadly interpreted. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0036] like Figures 1-9As shown, an embodiment of the present invention provides a bow thruster tunnel cleaning system. The cleaning system includes a cleaning device 2 slidably disposed within a bow thruster tunnel 1, a motion mechanism for driving the cleaning device 2 to slide back and forth within the bow thruster tunnel 1, and a remote control system. The cleaning device 2 and the motion mechanism are both electrically connected to the remote control system for remote control of the operation of the cleaning device 2 and the motion mechanism.

[0037] The cleaning device 2 includes a device body 21, a water supply pipeline 22, a water injection port 23, a water flow trough 24, a water spray channel 25 and a nozzle 26. The water injection port 23 is provided on the device body 21. One end of the water supply pipeline 22 is connected to the water injection port 23, and the other end is connected to an external water source. The remote control system can remotely control the on and off of the external water source. The water flow trough 24 and the water spray channel 25 are both provided inside the device body 21. One end of the water flow trough 24 is connected to the water injection port 23, and the other end is connected to the water spray channel 25. The water spray channel 25 can spray cleaning water out of the device body 21. The device body 21 can slide along the inner wall of the bow thrust tunnel 1 and can remove attachments on the inner wall of the bow thrust tunnel 1 while sliding.

[0038] The cleaning device 2 is disposed inside the bow thruster tunnel 1. The movement of the motion mechanism is controlled by a remote control system, driving the device body 21 to slide back and forth along the length of the bow thruster tunnel 1, thereby scraping the attachments on the inner wall surface of the bow thruster tunnel 1, thereby cleaning the inner wall of the bow thruster tunnel 1. During the sliding process, the remote control system controls an external water source to deliver clean water to the water inlet 23. The clean water flows through the water flow trough 24 and the water spray channel 25, and is finally sprayed out through the water spray channel 25. The attachments scraped off by the device body 21 are washed away. The attachments are discharged from the bow thruster tunnel 1 along with the water flow, thereby cleaning the bow thruster tunnel 1. At the same time, when the device body 21 moves near the propeller, the clean water sprayed from the nozzle channel 25 also cleans the attachments on the propeller surface. By combining sliding scraping and water spraying, attachments attached to the inner wall of the bow thruster tunnel 1 and the propeller surface can be effectively removed. The entire process does not require personnel to enter the bow thruster tunnel 1, which simplifies the operation and improves work efficiency. At the same time, it is not affected by external factors and can clean the attachments on the bow thruster tunnel 1 and the propeller surface in real time, which has higher applicability.

[0039] Optionally, a remote control system can be installed in the cab to facilitate operation by the staff.

[0040] Furthermore, the side wall of the device body 21 is provided with a plurality of radially-lengthened legs 27 at intervals along the circumferential direction. The motion mechanism includes a plurality of grooves 11 circumferentially spaced along the inner wall of the bow thrust tunnel 1 and a power assembly. The plurality of legs 27 are arranged in a one-to-one correspondence with the plurality of grooves 11. The grooves 11 are arranged along the length direction of the bow thrust tunnel 1, and the legs 27 can move along the grooves 11. The power assembly is used to provide power for the movement of the legs 27. The remote control system is electrically connected to the conveyor belt 12 to control the start and stop of the conveyor belt 12. The conveyor belt 12 is opened by the remote control system, and the cleaning device 2 thereon can be driven to move together.

[0041] Optionally, the conveyor belt 12 is connected to a remote control system via a conveyor belt cable 14 passing through a side wall of the bow thruster tunnel 1 .

[0042] It should be noted that, in order to ensure that the outer peripheral wall of the device body 21 can scrape off the attachments on the inner wall of the bow thruster tunnel 1, the portion of the support leg 27 protruding from the groove 11 should be as small as possible. Preferably, when the support leg 27 is completely in the groove 11, the outer peripheral wall of the device body 21 is completely in contact with the inner wall of the bow thruster tunnel 1.

[0043] Furthermore, the power assembly includes a conveyor belt 12 disposed within the groove 11 and a fixing block 13 fixed to the conveyor belt 12. The fixing block 13 is completely within the groove 11, and the support legs 27 are detachably fixed to the fixing block 13. The detachable support legs 27 are attached to the fixing block 13 to facilitate removal of the cleaning device 2 from the conveyor belt 12 for replacement.

[0044] Optionally, the fixing block 13 includes two clamping members, and the supporting legs 27 are clamped and fixed on the conveyor belt 12 by the clamping members.

[0045] Furthermore, the outer wall of the device body 21 is made of an elastic material or is coated with an elastic material, so that the device body 21 can be set vertically or obliquely inside the bow thruster tunnel 1. On the one hand, when the device body 21 is set at an angle, the spray direction of the water spray channel 25 can be changed, so that the inner wall of the bow thruster tunnel 1 can be flushed. On the other hand, when the device body 21 slides vertically, it may not be able to scrape the inner wall of the bow thruster tunnel 1 above the propeller due to the volume obstruction of the propeller. When the device body 21 is set at an angle, the inclined part can extend into the gap between the propeller and the inner wall of the bow thruster tunnel 1, so as to scrape and clean the inner wall of the bow thruster tunnel 1 above the propeller.

[0046] Furthermore, the device body 21 is in the shape of a circular ring or an elliptical ring. The water flow groove 24 is provided along the circumference of the device body 21 and is in the shape of a ring. A plurality of water spray channels 25 are evenly spaced along the circumference of the device body 21.

[0047] In some other embodiments of the present invention, the device body 21 is in the shape of a circular grid. The water flow trough 24 is provided along the grid plate of the device body 21. A plurality of water spray channels 25 are provided along the grid plate of the device body 21.

[0048] By providing a plurality of water spray channels 25, the spraying area of the cleaning water is made wider and the cleaning effect is better.

[0049] Optionally, the water spray channel 25 can be set to be single-sided or double-sided. The water spray channel 25 can be a cylinder with a constant diameter, a cylinder with a variable diameter, a rectangular parallelepiped or an elliptical cylinder.

[0050] Furthermore, the cleaning device 2 includes a nozzle 26 disposed on a sidewall of the device body 21. The nozzle 26 communicates with the water spray channel 25. After passing through the water spray channel 25, the cleaning water is sprayed out through the nozzle 26. The size of the nozzle 26 is selected to ensure the water spray flow rate and spray intensity. The water spray channel 25 is disposed on one or both sides, and accordingly, the nozzle 26 is also disposed on one or both sides of the device body 21.

[0051] Optionally, the nozzle 26 is fixedly mounted vertically on the side wall of the device body 21 in the horizontal direction. The end of the nozzle 26 away from the water spout is directly connected to the water spout channel 25. In addition, a sealing structure is provided at the connection between the nozzle 26 and the water spout channel 25 to ensure water tightness.

[0052] Furthermore, one end of the water spray channel 25 away from the water flow groove 24 is sealed. A water pipe 31 is connected between the water spray channel 25 and the nozzle 26. The cleaning water flowing through the water spray channel 25 enters the nozzle 26 through the water pipe 31 and is sprayed out through the nozzle 26.

[0053] Furthermore, the nozzle 26 is hinged to the side wall of the device body 21 and can rotate vertically. The water pipe 31 is flexible to accommodate the rotation of the nozzle 26. By making the nozzle 26 rotatable, the spray angle of the nozzle 26 can be adjusted, expanding the spray range and thus more thoroughly cleaning the inner wall of the bow thruster tunnel 1 and the propeller surface.

[0054] Furthermore, the device body 21 is provided with a drive assembly for driving the nozzle 26 to rotate. The drive assembly includes a drive motor 32, a drive cable 33, a connecting rod 34, and a rotating rod 35. The drive motor 32 is fixedly mounted on the device body 21. One end of the drive cable 33 is connected to an external power source, and the other end is connected to the drive motor 32. The output end of the drive motor 32 is fixedly connected to one end of the rotating rod 35, and the other end of the rotating rod 35 is hingedly connected to one end of the connecting rod 34. The end of the connecting rod 34, away from the rotating rod 35, is hingedly connected to the nozzle 26.

[0055] When the nozzle 26 needs to be rotated, the driving motor 32 drives the rotating rod 35 to rotate, and then drives the connecting rod 34 to move, so that a push and pull force is generated on the nozzle 26 through the connecting rod 34, thereby achieving angle adjustment of the nozzle 26.

[0056] Furthermore, the cleaning device 2 includes a housing 37 disposed within the device body 21. A housing chamber 371 is defined within the housing 37, and the drive motor 32 is disposed within the housing 371. The end of the connecting rod 34, distal from the rotating rod 35, extends out of the housing 371 and is hingedly connected to the nozzle 26. A watertight device 38 is provided at the junction of the connecting rod 34 and the housing 37 when the connecting rod 34 extends out of the housing 371 to ensure the sealing of the housing 37 and provide watertight protection for the drive motor 32.

[0057] In some alternative embodiments of the present invention, the nozzle 26 is fixedly mounted on a housing cavity 37, which is hingedly connected to the device body 21. By driving the housing cavity 37 to rotate, the nozzle 26 can rotate together. In this case, a fixing rod 36 is connected to the drive motor 32. The other end of the fixing rod 36 extends out of the housing cavity 371 and is fixedly connected to the device body 21. The connecting rod 34 is hingedly connected to the side wall of the housing cavity 371. A watertight device 38 is installed at the intersection of the fixing rod 36 and the housing cavity 37 when the fixing rod 36 extends out of the housing cavity 371 to ensure the sealing of the housing cavity 37.

[0058] The driving motor 32 drives the rotating rod 35 to rotate, and the rotation of the rotating rod 35 drives the connecting rod 34 to move. The connecting rod 34 generates a push-pull force on the accommodating cavity 37. Since the nozzle 26 is fixed on the accommodating cavity 37, the angle of the accommodating cavity 37 changes, and the corresponding spraying angle of the nozzle 26 will also change accordingly.

[0059] In some embodiments of the present invention, the thickness of the device body 21 is sufficient to accommodate the internal water flow groove 24 and the water spray channel 25 , while also leaving a thickness margin.

[0060] Furthermore, a booster assembly 4 is disposed within the water spray channel 25. The booster assembly 4 comprises a booster structure 41, an inlet orifice plate 42, and an outlet orifice plate 43. The booster structure 41 is disposed within the water spray channel 25, near the outlet end of the water spray channel 25, and is used to boost the pressure of the cleaning water. The inlet orifice plate 42 is disposed vertically within the water spray channel 25, near one end of the water flow trough 24. The outlet orifice plate 43 is disposed vertically within the water spray channel 25, located between the inlet orifice plate 42 and the booster structure 41. The inlet orifice plate 42 and the outlet orifice plate 43 are capable of relative rotation about their respective axes.

[0061] Optionally, the boost structure 41 can be a boost shower, a boost water chamber or a boost pump. The holes of the water inlet plate 42 and the water outlet plate 43 can be arranged symmetrically or asymmetrically, and the shape of the holes can be smooth circle, toothed circle, polygon or toothed polygon.

[0062] Optionally, the outer diameters of the water inlet orifice plate 42 and the water outlet orifice plate 43 are both the same as the wall diameter of the water spray channel 25 .

[0063] By providing a booster structure 41, the intensity of the cleaning water spray can be further guaranteed, achieving a better cleaning effect. Furthermore, the inlet orifice plate 42 and the outlet orifice plate 43 are configured to rotate relative to each other about their respective axes. This rotation controls the flow of water through the inlet orifice plate 42 and the outlet orifice plate 43, thereby achieving the purpose of regulating the spray flow rate. When the holes of the inlet orifice plate 42 and the outlet orifice plate 43 are completely aligned, the spray flow rate is maximum. As the two rotate relative to each other, the water flow is intercepted, thereby reducing the spray flow rate.

[0064] Furthermore, the boost assembly 4 also includes a rotating motor 44, a rotating cable 45, a connecting shaft 46, and a mounting cavity 47. The rotating motor 44 is mounted within the mounting cavity 47. One end of the rotating cable 45 is connected to an external power source, while the other end passes through the mounting cavity 47 and connects to the rotating motor 44. One end of the connecting shaft 46 is coaxially and fixedly connected to the output shaft of the rotating motor 44, while the other end extends out of the mounting cavity 47 and coaxially and fixedly connects to the water inlet orifice 42 or the water outlet orifice 43. The mounting cavity 47 is fixedly mounted within the water spray channel 25 and maintains a watertight seal.

[0065] By driving the rotary motor 44, the rotary motor 44 drives the connecting shaft 46 to rotate, and then drives one of the water inlet orifice plate 42 and the water outlet orifice plate 43 to rotate, so that the two rotate relative to each other, thereby achieving the purpose of regulating the injection flow rate.

[0066] Optionally, after passing through the device body 21 , the rotating cable pipeline 45 may first enter the cavity of the boost structure 41 and then be connected to the drive motor 32 through the mounting cavity 47 .

[0067] It should be noted that the water supply pipeline 22 , the drive cable pipeline 33 and the rotating cable pipeline 45 have sufficient lengths reserved to meet the movement of the cleaning device 2 .

[0068] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A bow thruster tunnel cleaning system, characterized in that: The cleaning system includes a cleaning device slidably disposed in the bow thruster tunnel, a motion mechanism for driving the cleaning device to slide back and forth in the bow thruster tunnel, and a remote control system. The cleaning device and the motion mechanism are both electrically connected to the remote control system to remotely control the actions of the cleaning device and the motion mechanism. The cleaning device includes a device body, a water supply pipeline, a water injection port, a water flow trough and a water spray channel. The water injection port is opened on the device body, one end of the water supply pipeline is connected to the water injection port, and the other end is connected to an external water source. The remote control system can remotely control the on and off of the external water source. The water flow trough and the water spray channel are both opened inside the device body, one end of the water flow trough is connected to the water injection port, and the other end is connected to the water spray channel. The water spray channel can spray cleaning water to the outside of the device body. The device body can slide along the inner wall of the bow thruster tunnel and can remove attachments on the inner wall of the bow thruster tunnel while sliding.

2. The bow thruster tunnel cleaning system according to claim 1, characterized in that: The side wall of the device body is provided with a plurality of support legs spaced apart along the circumferential direction and having a radial length direction; The motion mechanism includes a plurality of grooves spaced apart along the inner wall of the bow thrust tunnel in the circumferential direction and a power assembly, wherein the plurality of legs are arranged in a one-to-one correspondence with the plurality of grooves, the grooves being arranged along the length direction of the bow thrust tunnel, the legs being able to slide along the grooves, and the power assembly being used to provide power for the movement of the legs; The power assembly includes a conveyor belt arranged in the groove and a fixed block fixed on the conveyor belt, the fixed block is completely located in the groove, and the supporting legs are detachably fixed on the fixed block.

3. The bow thruster tunnel cleaning system according to claim 1, characterized in that: The cleaning device further comprises a nozzle, which is arranged on a side wall of the device body and is communicated with the water spray channel; One end of the water spray channel away from the water flow trough is sealed, and a flexible water pipe is connected between the water spray channel and the nozzle.

4. The bow thruster tunnel cleaning system according to claim 3, characterized in that: The water spray channel can be set to be single-sided or double-sided; Correspondingly, the nozzles are also arranged on one side or both sides of the device body.

5. The bow thruster tunnel cleaning system according to claim 3, characterized in that: The nozzle is hinged on the side wall of the device body and can rotate in the vertical direction; The device body is also provided with a driving assembly, which is used to drive the nozzle to rotate; The driving assembly includes a driving motor, a driving cable pipeline, a connecting rod and a rotating rod. The driving motor is fixedly arranged on the device body, one end of the driving cable pipeline is connected to an external power supply, and the other end is connected to the driving motor. The output end of the driving motor is fixedly connected to one end of the rotating rod, and the other end of the rotating rod is hinged to one end of the connecting rod. The end of the connecting rod away from the rotating rod is hinged to the nozzle.

6. The bow thruster tunnel cleaning system according to claim 5, characterized in that: The cleaning device also includes a accommodating chamber, which is arranged on the device body. An accommodating chamber is opened on the accommodating chamber, and the driving motor is arranged in the accommodating chamber. The end of the connecting rod away from the rotating rod extends out of the accommodating chamber and is hinged to the nozzle. When the connecting rod extends out of the accommodating chamber, a watertight device is provided at the intersection with the accommodating chamber to ensure the sealing of the accommodating chamber.

7. The bow thruster tunnel cleaning system according to claim 1, characterized in that: A boosting assembly is provided in the water spray channel, and the boosting assembly includes a boosting structure, a water inlet orifice plate and a water outlet orifice plate. The boosting structure is provided in the water spray channel and close to the outlet end of the water spray channel. The boosting structure is used to pressurize the cleaning water. The water inlet orifice plate is vertically provided in the water spray channel and close to one end of the water flow trough. The water outlet orifice plate is vertically provided in the water spray channel and is located between the water inlet orifice plate and the boosting structure. The water inlet orifice plate and the water outlet orifice plate can rotate relative to each other around their own axes.

8. The bow thruster tunnel cleaning system according to claim 7, characterized in that: The boost assembly also includes a rotating motor, a rotating cable pipeline, a connecting shaft and an installation cavity. The rotating motor is arranged in the installation cavity. One end of the rotating cable pipeline is connected to an external power supply, and the other end passes through the installation cavity and is connected to the rotating motor. One end of the connecting shaft is coaxially and fixedly connected to the output shaft of the rotating motor, and the other end extends out of the installation cavity and is coaxially and fixedly connected to the water inlet orifice plate or the water outlet orifice plate. The installation cavity is fixedly arranged in the water spray channel and always maintains a water-based seal.

9. The bow thruster tunnel cleaning system according to claim 1, characterized in that: The device body is in the shape of a circular ring or an elliptical ring as a whole, the water flow groove is opened along the circumference of the device body and is in the shape of a ring as a whole, and a plurality of water spray channels are evenly spaced along the circumference of the device body; The device body is in the shape of a circular grid as a whole. The water flow groove is arranged along the grid plate of the device body. A plurality of water spray channels are arranged along the grid plate of the device body.

10. The bow thruster tunnel cleaning system according to claim 1, characterized in that: The outer side wall of the device body is made of elastic material or is coated with elastic material, so that the device body can be vertically or obliquely arranged inside the bow thruster tunnel.

Images