Self-propelled multipurpose maintenance platform
By designing a self-propelled multi-purpose maintenance platform, combined with a streamlined hull and side-mounted fixing devices, the problem of not being able to perform dock and offshore maintenance simultaneously in existing technologies has been solved, achieving low-cost and high-efficiency ship maintenance.
Patent Information
- Application Number
- CN202422709673.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-07
AI Technical Summary
Existing ship repair platforms cannot simultaneously meet the needs of dock repair and offshore repair, resulting in high operation and maintenance costs and low utilization rates.
Design a self-propelled multi-purpose maintenance platform that combines a streamlined main hull, upper side buoys, and side fixing devices. It has self-propulsion capabilities and can be used as a floating dock for maintenance when docked at a pier, and can autonomously navigate for rescue operations in the open sea.
It has achieved the goal of reducing operation and maintenance costs while improving work adaptability and utilization, enabling effective ship repairs both at docks and in the open sea.
Smart Images
Figure CN223457091U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to belong to the field of ship maintenance and emergency rescue, especially in a kind of self-propelled multipurpose maintenance platform. BACKGROUND
[0002] During long time navigation or transportation, the bottom of ship is easy to collide with underwater obstacle and deform and damage, and water and aquatic organism can cause the corrosion and peeling of the bottom paint layer, even the corrosion of the bottom metal layer, so it needs to be regularly overhauled and maintained.
[0003] In the related art, the existing ship maintenance is generally carried out in land dock or floating dock, the factory drags the ship to be maintained to the dock, and the ship is maintained after being placed on the dock bottom.For the ship that is lost in the open sea, the ship is transferred to the wharf for maintenance by semi-submersible ship or tugboat.
[0004] However, the floating dock is a small-draft square platform without self-propelled function, poor maneuverability, and only can be used for ship maintenance at wharf without open-sea rescue capability; and the semi-submersible ship has large draft and tonnage, generally used for open-sea salvage and rescue, not suitable for wharf maintenance. Therefore, the maintenance platforms of the two types of ships need to be built separately, with low utilization rate, high operation and maintenance cost, and poor comprehensive benefit. SUMMARY
[0005] The utility model embodiment provides a kind of self-propelled multipurpose maintenance platform, can simultaneously consider the wharf maintenance and open-sea maintenance of ship, reduce operation and maintenance cost while improving work adaptability and utilization rate.The technical scheme is as follows:
[0006] The utility model embodiment provides a kind of self-propelled multipurpose maintenance platform, comprising: streamlined main hull, upper side float tank and side fixed device,
[0007] The top of the streamlined main hull is provided with a pier area deck, the bottom of the streamlined main hull is provided with a propeller, and the inside of the streamlined main hull is provided with a ballast water tank and a ballast pump cabin connected with the ballast water tank;
[0008] The upper side float tank includes left side float tank and right side float tank which are the same structure and are arranged on the top of the streamlined main hull, the left side float tank and the right side float tank are symmetrically arranged relative to the center line of the streamlined main hull, and the side fixed device is arranged on the outside of at least one of the left side float tank and the right side float tank for fixed connection with the wharf.
[0009] Optionally, the propeller comprises a stern propeller and a bow propeller, the stern of the streamlined main hull is provided with a stern propeller cabin, and the stern propeller is arranged in the stern propeller cabin; two bow propeller cabins are symmetrically arranged on the bow of the streamlined main hull, and the bow propeller is arranged in the bow propeller cabin; the stern propeller and the bow propeller are all full-revolution propellers.
[0010] Optionally, the top deck height of the stern propeller cabin is higher than the Budun area deck height; the bow propeller cabin is arranged in the vertical direction, and the bow propeller is telescopically installed in the bow propeller cabin.
[0011] Optionally, a connecting channel is arranged in the streamlined main hull, and the stern propeller cabin and the ballast pump cabin are connected through the connecting channel.
[0012] Optionally, a plurality of building areas are arranged on the top of the upper side float box in the vertical direction, and the upper side float box is provided with a longitudinal channel connecting the top and the streamlined main hull and passing through the plurality of building areas.
[0013] Optionally, a plurality of longitudinal channels are arranged and uniformly spaced in the hull direction of the streamlined main hull.
[0014] Optionally, the building area on the uppermost layer is provided with a crane.
[0015] Optionally, a plurality of anchor chain cabins are arranged on the upper side float box and are spaced in the hull direction of the streamlined main hull.
[0016] Optionally, a plurality of docks are arranged on the Budun area deck.
[0017] Optionally, a plurality of side fixing devices are arranged in the hull direction of the streamlined main hull, comprising a fixed guide column and a fixed clasp matched with the fixed guide column, the fixed guide column is arranged on the side of the upper side float box and connected with the upper side float box through a fixed base, and the fixed clasp is used for being fixedly installed on the wharf in an openable and closable manner.
[0018] The technical scheme provided by the embodiment of the utility model has at least the following beneficial effects:
[0019] The self-propelled multipurpose maintenance platform provided by the embodiment of the utility model can be docked on the wharf in shallow water area as a whole when not needing to carry out the open-sea operation by discharging the ballast water in the ballast water tank to lower the waterline, and is fixed to the wharf by the side fixed device arranged outside the upper side float tank on the side, and the goods or ships to be maintained are berthed and maintained as floating docks or warehouses. When needing to carry out the open-sea rescue work, the self-propelled multipurpose maintenance platform can realize self-propelled navigation by releasing the locking of the side fixed device and utilizing the propeller, and the waterline of the whole streamlined hull is raised by adjusting the ballast water and injecting water into the ballast water tank, so that the whole deck in Budun area is submerged in water, so as to float the specific goods to be carried, such as barges, yachts, ships and drilling platforms, into the area where the deck in Budun area is located, and then the goods are transported to the specified position in the semi-submerged state, or the goods are maintained on the sea. By simultaneously considering the wharf maintenance and the open-sea maintenance of the ship, the work adaptability and the utilization rate are improved while the operation and maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by the ordinary skilled in the art without creative labor.
[0021] Figure 1 It is a general arrangement scheme schematic diagram of the self-propelled multipurpose maintenance platform provided by the embodiment of the utility model.
[0022] Figure 2 It is the A-A cross-sectional view in Figure 1
[0023] Figure 3 It is the B-B cross-sectional view in Figure 1
[0024] Figure 4 It is the C-C cross-sectional view in Figure 1
[0025] Figure 5 It is the D-D cross-sectional view in Figure 1
[0026] Figure 6 It is the E-E cross-sectional view in Figure 1
[0027] In the drawings:
[0028] 1 - streamlined hull; 1a - bow; 1b - stern; 2 - upper side float; 2a - port float; 2b - starboard float; 3 - side fixing device; 11 - pier area deck; 12 - propeller; 13 - ballast water tank; 14 - ballast pump cabin; 15 - stern propulsion cabin; 16 - bow propulsion cabin; 17 - connecting passage; 18 - longitudinal passage; 21 - building area; 22 - anchor chain cabin; 23 - float ballast water tank area; 31 - fixed guide column; 32 - fixed clasp; 33 - fixed base; 111 - pier; 121 - stern propeller; 122 - bow propeller; 211 - crane; m - pier. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will make further detailed description to the utility model embodiment in combination with the drawings.
[0030] Figure 1 is a general layout scheme schematic diagram of a self-propelled multipurpose maintenance platform provided by the utility model embodiment; Figure 2 is Figure 1 A-A direction sectional view in the Figure 3 is Figure 1 B-B direction sectional view in the Figure 4 is Figure 1 C-C direction sectional view in the Figure 5 is Figure 1 D-D direction sectional view in the Figure 6 is Figure 1 E-E direction sectional view in the.As Figures 1 to 6 shown, the utility model embodiment provides a self-propelled multipurpose maintenance platform, which comprises a streamlined main hull 1, an upper side float 2 and a side fixing device 3.
[0031] Wherein, the streamlined main hull 1 top is provided with pier area deck 11, the streamlined main hull 1 bottom is provided with propeller 12, the streamlined main hull 1 inside is provided with ballast water tank 13 and the ballast water tank 13 is connected with ballast pump cabin 14.
[0032] The upper side float 2 includes port float 2a and starboard float 2b which are same in structure and are arranged on the top of the streamlined main hull 1.The port float 2a and the starboard float 2b are symmetrically arranged relative to the center line of the streamlined main hull 1, and the side fixing device 3 is arranged on the outside of at least one of the port float 2a and the starboard float 2b for fixed connection with the pier m.
[0033] In this embodiment of the utility model, the streamlined main hull 1 has a maximum length in the hull direction ranging from 180 to 200 meters, and a beam ranging from 35 to 40 meters. The dock area deck 11, serving as the main hull deck, adopts a stepped, low-profile, deck height ranging from 5 to 6 meters. The bow 1a and stern 1b feature a circular transition in profile to provide lifting force and surface stability for the maintenance platform, ensuring a low draft and deck height to accommodate shallow-water maintenance operations at docks. The bow 1a has an overall length ranging from 16 to 18 meters, an angle of attack of 20 to 25 degrees, and a circular waterplane. The stern section 1b has a total length of 17 to 20 meters and is divided into two sections, the bow section is 12 to 14 meters long, has a 15-20° outflow angle, and a "U"-shaped waterplane, while the stern section is 5 to 6 meters long and straight, with a circular arc transition at the intersection of the side plate and the bottom plate. The streamlined main hull 1 is equipped with seven watertight transverse bulkheads and three watertight longitudinal bulkheads, dividing the maintenance platform into several watertight compartment areas to meet the damage stability requirements of the specification. Furthermore, the streamlined main hull 1 is equipped with a ballast water system, which mainly includes a ballast water tank 13 and a ballast pump room 14 connected to the ballast water tank 13. Among them, there are multiple ballast pump rooms 14 arranged and symmetrically arranged along the left and right sides of the streamlined main hull 1. Each ballast pump room 14 is equipped with a ballast pump. The motor power of the ballast pump is 100 to 150kW, the flow rate is 3500 to 4000m³ / h, and the pressure is 0.1 to 0.15MPa. There are 30 to 35 ballast water tanks 13. The ballast pumps in the ballast pump rooms 14 provide power to realize the filling and drainage of the ballast water tanks 13, and realize the center of gravity position, buoyancy and stability adjustment of the entire streamlined main hull 1 and the self-propelled multi-purpose maintenance platform. Furthermore, a propeller 12 is also provided at the bottom of the streamlined main hull 1, which can provide power to realize the navigation of the entire streamlined main hull 1 and the self-propelled multi-purpose maintenance platform on the water. On top of the streamlined main hull 1, a port pontoon 2a and a starboard pontoon 2b are symmetrically arranged on the left and right sides of the hull. The outer sides of the port pontoon 2a and the starboard pontoon 2b are flush with the two sides of the streamlined main hull 1, respectively. The width of a single pontoon structure ranges from 4.5 to 5.5 meters, and the length ranges from 140 to 150 meters. A watertight deck is provided on top of the upper side pontoon 2 as a safety deck. The height of the safety deck is 17 to 18 meters from the bottom of the streamlined main hull 1. The port pontoon 2a and the starboard pontoon 2b can be used as a storage space for maintenance and construction equipment such as cranes and hoists, providing work and living space for relevant personnel. The symmetrical arrangement of the two can also provide semi-submerged stability when the maintenance platform is semi-submerged during offshore operations.
[0034] The self-propelled multipurpose maintenance platform provided by the utility model can be docked on the wharf m in the shallow water area as a whole by lowering the waterline through discharging the ballast water in the ballast water tank 13, and is fixed to the wharf m through the side fixed device 3 arranged outside the upper side float box 2 of the side, and is treated as a floating dock or warehouse to moor and maintain the goods or ships to be maintained. When the far sea rescue work is needed, the self-propelled multipurpose maintenance platform can realize self-navigation through the propeller 12 by releasing the locking of the side fixed device 3, and the waterline of the whole streamlined hull 1 is raised by adjusting the ballast water and injecting water into the ballast water tank 13, so that the whole BODEN area deck 11 is submerged in water, so as to float the specific goods, such as barges, yachts, ships and drilling platforms, from the specified position into the area where the BODEN area deck 11 is located, and then the goods are transported to the specified position in the semi-submerged state, or the maintenance is carried out on the sea. By simultaneously considering the wharf maintenance and the far sea maintenance of the ship, the work adaptability and the utilization rate are improved while the operation and maintenance cost is reduced.
[0035] Exemplarily, in the utility model embodiment, the float box ballast water tank area 23 is also arranged in the port float box 2a and the starboard float box 2b, and the float box ballast water tank area 23 has the same effect as the ballast water tank 13, and a watertight transverse bulkhead is arranged at the corresponding position and extends to the top safety deck of the port float box 2a and the starboard float box 2b.
[0036] Optionally, the propeller 12 comprises a stern propeller 121 and a bow propeller 122, the stern of the streamlined main hull 1 is provided with a stern propulsion cabin 15, and the stern propeller 121 is arranged in the stern propulsion cabin 15; two bow propulsion cabins 16 are symmetrically arranged at the bow of the streamlined main hull 1, and the bow propeller 122 is arranged in the bow propulsion cabin 16, and the stern propeller 121 and the bow propeller 122 are all full-revolution propellers. Exemplarily, in the utility model embodiment, the stern propulsion cabin 15 is arranged in the stern 1b area of the streamlined main hull 1, and three are arranged in parallel and at intervals in the stern propulsion cabin 15, so as to ensure that the maintenance platform has greater self-navigation capability. Further, two bow propulsion cabins 16 are symmetrically arranged at the two sides of the bow 1a of the streamlined main hull 1, and one bow propeller 122 in the form of a full-revolution propeller is arranged in each bow propulsion cabin 16, so as to provide the turning steering and dynamic positioning functions for the maintenance platform in the propulsion in and out, and improve the self-navigation capability.
[0037] Optionally, the top deck height of the stern propulsion cabin 15 is higher than the height of the moon pool deck 11; the bow propulsion cabin 16 is arranged in the vertical direction, and the bow thruster 122 is telescopically installed in the bow propulsion cabin 16. Exemplarily, in the embodiment of the utility model, the stern 1b area where the stern propulsion cabin 15 is located adopts a stepped deck form, and the height of the top deck is higher than the height of the moon pool deck 11, which is to provide the maintenance platform with the ability of self-sailing in the open sea, and to raise the stern 1b relative to the bottom of the streamlined main hull 1, which is convenient for fixing a large-size full-revolving thruster in the stern propulsion cabin 15, and does not increase the height of the moon pool deck 11, thereby ensuring the self-sailing ability of the maintenance platform, avoiding the low deck height requirement when the ship is docked as a floating dock, and ensuring the adaptability. Further, the bow propulsion cabin 16 for installing the bow thruster 122 adopts a vertical shaft structure arranged longitudinally, and the bow thruster 122 is telescopically arranged by the internal mobile platform. When the open sea operation is needed, the bow thruster 122 is extended out of the ship bottom from the bottom of the bow propulsion cabin 16, which provides the maintenance platform with the steering and dynamic positioning functions. When the ship is docked for operation, the bow thruster 122 can be recovered upward into the streamlined main hull 1, which adapts to the shallow draft operation requirement of the dock.
[0038] Optionally, the streamlined main hull 1 is provided with a connecting passage 17, and the stern propulsion cabin 15 and the ballast pump cabin 14 are connected through the connecting passage 17. Exemplarily, in the embodiment of the utility model, the streamlined main hull 1 is provided with two connecting passages 17 symmetrically arranged on the left and right sides along the hull direction, and the width range is set to 1.2 to 1.5 m to avoid affecting the diving ability of the maintenance platform, and the connecting passages 17 are connected to the plurality of ballast pump cabins 14 and the stern propulsion cabin 15, and each connection is provided with a slide-type watertight door. On the basis of providing the staff with the same line and the arrangement of the pipeline, the isolation and damage stability between the cabins are ensured.
[0039] Optionally, the upper side float box 2 is provided with a plurality of layers of building area 21 on the top in the vertical direction, and the upper side float box 2 is provided with a longitudinal passage 18 connecting the top and the streamlined main hull 1 and passing through the plurality of layers of building area 21. Exemplarily, in the embodiment of the utility model, the top safety deck of the port float box 2a and the starboard float box 2b is provided with upper and lower two layers of building area 21, the building area 21 in the lower layer is mainly arranged with a maintenance platform self-supporting equipment, and the main equipment includes a diesel generating set, a power distribution system, a communication navigation system, a fire extinguishing system, a living water system, a platform monitoring system and the like. The building area 21 in the upper layer is mainly arranged with a personnel living area, a living area, a kitchen and a dining room, and a maintenance platform machine repair workshop and an electrician workshop, and the main equipment includes a lathe, a milling machine, a welding machine, an oxygen acetylene system, a repair compressed air system and the like. By configuring the plurality of layers of building area 21 structure, the division of personnel living and maintenance construction area is realized, and the longitudinal passage 18 is formed by using the longitudinal arranged multi-layer stair structure, and the movement of personnel between the layers of building area 21 and the deck 11 of the streamlined main hull 1 and the internal cabin area is realized.
[0040] Optionally, a plurality of longitudinal passages 18 are arranged and uniformly spaced along the hull direction of the streamlined main hull 1. Exemplarily, in the embodiment of the utility model, three longitudinal passages 18 are arranged on the port float box 2a and the starboard float box 2b along the hull direction of the streamlined main hull 1, respectively close to the bow 1a side, the stern 1b side and the middle of the upper side float box 2. The overall distribution is reasonable, and the overall pipeline arrangement and the efficient movement of the staff are facilitated. Among them, the front and back dimensions of the longitudinal passage 18 in the middle should be as small as possible to meet the personnel up and down traffic and pipeline arrangement requirements, and to avoid reducing the float box water tank area 23, further ensuring the diving capacity of the maintenance platform.
[0041] Optionally, the building area 21 in the uppermost layer is provided with a crane 211. Exemplarily, in the embodiment of the utility model, 6 to 8 cranes 211 are arranged on the building area 21 in the uppermost layer, the maximum rotation radius range is 24 to 28 m, and the rated lifting capacity is 10 to 15 t, which meets the maintenance requirements of the ship and the cargo on the deck 11 of the buoy area.
[0042] Optionally, characterized in that, the upper side float box 2 is provided with a plurality of anchor chain cabins 22, the plurality of anchor chain cabins 22 are arranged along the hull direction of the streamlined main hull 1. Exemplarily, in the embodiment of the utility model, the left side float box 2a and the right side float box 2b are provided with two anchor chain cabins 22, the inside of which is arranged with anchor chain winches and stores anchor chains for fixing the maintenance platform, which is used for lowering and using when needing to park and position, to ensure the parking stability and the offshore positioning capability. Further, the anchor chain cabin 22 is located below the building area 21 of the top of the left side float box 2a and the right side float box 2b, the size of which can meet the storage of the maintenance platform anchor chain and winches and other facilities, to avoid reducing the float ball ballast water cabin area 23 on the upper side float box 2, to ensure the diving capability of the platform.
[0043] Optionally, characterized in that, the dock block area deck 11 is arranged with a plurality of dock blocks 111. Exemplarily, in the embodiment of the utility model, the dock block area deck 11 can be provided with a plurality of dock blocks 111 according to different arrangement intervals and modes according to actual maintenance requirements, the form and structure of the dock block 111 are customized to stably support the ship or platform to be maintained.
[0044] Optionally, the side fixing device 3 is provided with a plurality of fixed guide columns 31 and fixed clamping rings 32 matched with the fixed guide columns 31 along the hull direction of the streamlined main hull 1, the fixed guide columns 31 are arranged at intervals on the side of the upper side float box 2 and are connected with the upper side float box 2 through a fixed base 33, and the fixed clamping ring 32 is used for fixedly installed on the wharf m. Exemplarily, in the embodiment of the utility model, the fixed guide column 31 adopts a hollow steel pipe to reduce the weight, and the diameter thereof should be designed according to the wind and wave resistance strength requirement of the maintenance platform when operating on the wharf. The fixed guide column 31 is provided with at least two on the side of the streamlined main hull 1, which are longitudinally arranged through the fixed base 33 and connected with the outer side of the upper side float box 2. The matched fixed clamping ring 32 is installed on the water conservancy foundation of the wharf, the fixed clamping ring 32 is openable and closable, the fixed clamping ring 32 is closed to fix the maintenance platform on the wharf through the clamping of the fixed guide column 31, and the fixed clamping ring 32 is opened to separate the maintenance platform from the wharf, which can sail freely away from the wharf. Further, the side fixing device 3 connects the streamlined main hull 1 with the shore base, the shore base facilities should be separately carried out water conservancy design, the strength thereof meets the requirements of relevant specifications, and the shore base facilities are protected by piers to avoid damage to the maintenance platform caused by collision with the shore base.
[0045]
[0046] Unless otherwise defined, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms "first", "second", and the like, as used herein do not have any specific meaning, and are used only to distinguish one element from another. Also, the terms "a" and "an" are used herein to mean one or more than one, unless otherwise indicated. The term "including" as used herein is used to mean "comprising" or "consisting of," and not to exclude the presence of additional components or steps. The term "connected" as used herein is used to mean either a direct connection or an indirect connection through one or more intervening components or steps.
[0047] The above description is merely the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A self-propelled multipurpose service platform, characterized in that, The utility model relates to a kind of ship structures, including: Streamlined main hull (1), upper side float box (2) and side fixed device (3), The streamlined main hull (1) top is provided with the pontoon area deck (11), the streamlined main hull (1) bottom is provided with propeller (12), the streamlined main hull (1) inside is provided with ballast water tank (13) and the ballast pump cabin (14) being connected with ballast water tank (13); The upper side float box (2) includes the left side float box (2a) and the right side float box (2b) of the same structure, and the left side float box (2a) and the right side float box (2b) are symmetrically arranged relative to the center line of the streamlined main hull (1), and the side fixed device (3) is arranged on the outside of at least one of the left side float box (2a) and the right side float box (2b) for fixed connection with the wharf (m).
2. A self-propelled multi-purpose service platform according to claim 1, characterized in that The propeller (12) includes a stern propeller (121) and a bow propeller (122), the stern of the streamlined main hull (1) is provided with a stern propulsion cabin (15), and the stern propeller (121) is arranged in the stern propulsion cabin (15); two bow propulsion cabins (16) are symmetrically arranged on both sides of the bow of the streamlined main hull (1), and the bow propeller (122) is arranged in the bow propulsion cabin (16); the stern propeller (121) and the bow propeller (122) are all full-revolution propellers.
3. A self-propelled multi-purpose service platform according to claim 2, characterized in that The top deck height of the stern propulsion cabin (15) is higher than the height of the pontoon area deck (11); the bow propulsion cabin (16) is arranged in the vertical direction, and the bow propeller (122) is telescopically installed in the bow propulsion cabin (16).
4. A self-propelled multi-purpose service platform according to claim 3, characterized in that The streamlined main hull (1) is provided with a connecting passage (17), and the stern propulsion cabin (15) and the ballast pump cabin (14) are connected through the connecting passage (17).
5. Self-propelled multipurpose maintenance platform according to any of claims 1 to 4, characterized in that, The upper side float box (2) is provided with a plurality of building areas (21) in the vertical direction on the top, and is provided with a longitudinal passage (18) connecting the top with the streamlined main hull (1) and passing through the plurality of building areas (21).
6. A self-propelled multi-purpose service platform according to claim 5, characterized in that The longitudinal passage (18) is provided with a plurality of longitudinal passages, which are uniformly and spacedly arranged along the hull direction of the streamlined main hull (1).
7. A self-propelled multi-purpose service platform according to claim 5, characterized in that The building area (21) located at the uppermost layer is provided with a crane (211).
8. Self-propelled multipurpose maintenance platform according to any of claims 1 to 4, characterized in that, The upper side float box (2) is provided with a plurality of anchor chain cabins (22), and the plurality of anchor chain cabins (22) are spacedly arranged along the hull direction of the streamlined main hull (1).
9. Self-propelled multipurpose maintenance platform according to any of claims 1 to 4, characterized in that, The pontoon area deck (11) is arranged with a plurality of docks (111).
10. Self-propelled multipurpose maintenance platform according to any of claims 1 to 4, characterized in that, The side fixed device (3) is provided with a plurality of fixed guide columns (31) and fixed snap rings (32) matched with the fixed guide columns (31) along the hull direction of the streamlined main hull (1), the fixed guide columns (31) are arranged at intervals on the side of the upper side floating box (2) and are connected with the upper side floating box (2) through a fixed base (33), and the fixed snap ring (32) is used for being fixedly installed on the wharf (m) in an openable and closable manner.