Marine DC distribution board

Abstract

The invention discloses a marine direct-current distribution board, and relates to the technical field of marine direct-current distribution appliances, the marine direct-current distribution board comprises a cabinet body and four cabinet doors, the interior of the cabinet body is divided into four mounting cavities, a cabinet door is hinged to the cabinet body at the front end of each mounting cavity, a lead screw is mounted in a lifting groove, and a fixed seat is fixedly connected to the front end of the outer side face of a lifting plate; a walking seat is arranged on the outer side face of the lifting plate, a boosting assembly is arranged in the fixing seat, stirrup seats are installed on the outer side face of the rotating plate, and a dry powder tank is clamped between the two stirrup seats. An auxiliary mechanism is mounted at the rear end of the top surface of the stirrup seat above the rotating plate; through cooperation of the walking seat, the boosting mechanism and the track strip seat, an independent power supply can be conveniently used for performing functions, automatic patrol operation can be performed on the rear end of the internal cavity of the distribution board with faults, and rapid flame-retardant powder spraying operation can be performed on fault points with short-circuit smoking in a real-time monitoring mode; the situation of reburning is avoided, and the safety of the whole marine distribution board in use is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of shipboard DC power distribution equipment, in particular to a shipboard DC power distribution board. Background Art

[0002] The ship's power distribution system is the core hub of power supply. Its operation safety directly affects the stability of ship equipment and the safety of crew members. Traditional shipboards are prone to short circuits, smoke and even fire accidents due to line aging, insulation failure and other reasons during long-term high-load operation. In the existing technology, the protection measures for internal faults of the distribution board have the following limitations: Monitoring hysteresis: Most distribution boards rely on fixed smoke sensors or temperature detectors, which can only trigger alarms after the fire expands, and cannot accurately locate and quickly respond to early short-circuit points;

[0003] Insufficient fire extinguishing coverage: Conventional fire extinguishing devices (such as fixed sprinklers) are limited by the installation position and spray angle, making it difficult to effectively extinguish fires in hidden areas such as the rear end of the chamber and the interlayer of electrical components in the cabinet door, which can easily lead to re-ignition due to blind spots caused by powder spraying; Poor equipment stability: Traditional mobile inspection devices mostly use mechanical buckles or slide rail structures, which are prone to displacement deviations under ship turbulence conditions, affecting the powder spraying accuracy and its own stability;

[0004] In response to the above problems, existing technologies attempt to improve safety by adding redundant fire extinguishing units or strengthening insulating materials, but fail to solve core pain points such as dynamic inspection, multi-angle deep powder spraying and equipment self-stabilization; therefore, there is an urgent need for an integrated system that integrates real-time monitoring, precise positioning and adaptive fire extinguishing functions to reduce the risk of short-circuit re-ignition and improve the comprehensive safety protection capabilities of the distribution board under complex working conditions. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a marine DC switchboard.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a marine DC distribution board, comprising a cabinet body and four cabinet doors, the inner part of the cabinet body is divided into four installation chambers, a cabinet door is hinged on the cabinet body at the front end of each installation chamber, the front end surface of the cabinet door is provided with installation openings of different shapes, and different electrical components are installed on the cabinet doors at different positions; two heat dissipation plate racks are installed in each installation chamber with an upper and lower interval; a lifting groove is vertically opened at the front end of the inner wall of one side of each installation chamber, a lead screw is rotatably installed in the lifting groove, and an installation groove is opened inside the cabinet body below the lifting groove. A mounting cavity, wherein a servo motor for lead screw drive is arranged inside the mounting cavity; a threaded seat is sleeved on the lead screw, a vertical lifting plate is fixedly connected to the outer end of the threaded seat, a U-shaped fixed seat is fixedly connected to the front end of the outer side surface of the lifting plate, a walking seat is slidably arranged at the rear end of the outer side surface of the lifting plate, a booster mechanism for limiting the walking seat is arranged inside the fixed seat, a rotating plate is rotatably arranged on the outer side surface of the walking seat, stirrup seats are installed at the upper and lower ends of the outer side surface of the rotating plate, and a dry powder can is vertically clamped between the two stirrup seats; an auxiliary mechanism for powder spraying adjustment is installed at the rear end of the top surface of the stirrup seat on the upper part of the rotating plate.

[0007] Preferably, track bars are longitudinally installed at the upper, middle and lower positions of the inner wall of one side of the installation chamber, a smoke sensor for temperature monitoring is installed at the rear end of the track bar seat in the upper part of the installation chamber, and the upper part of the rear end surface of the walking seat is used for a miniature image monitor for monitoring the inside of the installation chamber.

[0008] Preferably, a self-locking motor is installed at the front end of the outer side surface of the walking seat, the driving shaft of the self-locking motor is fixedly connected to the rotating plate, the outer side of the self-locking motor is fixedly connected to a stabilizing ring for stable rotation of the rotating plate, the inner side surface of the rotating plate is provided with a stabilizing ring groove to cooperate with the stabilizing ring, and one end of the stabilizing ring is movably abutted against the inside of the stabilizing ring groove.

[0009] Preferably, a movable groove with a T-shaped cross-section is longitudinally penetrated through the outer side surface of the track bar seat, and the middle part of the inner top surface and the middle part of the inner bottom surface of the movable groove are longitudinally fixed with an anti-skid track plate, and the walking seat is also a U-shaped block, and the cross-section of the track bar seat is smaller than the cross-section of the slot of the walking seat; a walking mechanism that cooperates with the anti-skid track plate is installed in the slot of the walking seat.

[0010] Preferably, the auxiliary mechanism includes an electric push rod vertically arranged at the rear end of the top of the stirrup seat on the upper part of the rotating plate, a drive box installed on the top of the telescopic rod of the electric push rod, a reciprocating motor arranged inside the drive box, and a rotating powder spraying column installed on the inner side of the drive box through a bearing. A boosting chamber is opened inside the rotating powder spraying column, and the rear end face and the top of the rotating powder spraying column are connected to and installed with a memory metal connecting seat, and an electric powder spraying nozzle is sleeved on the memory metal connecting seat.

[0011] Preferably, the suspended end of the rotary powder spray column is provided with a rotating connector, and the outer end of the rotating connector is connected to a high-temperature resistant connecting pipe, the other end of the high-temperature resistant connecting pipe is connected to an electric valve pipe, and the electric valve pipe is installed at the powder outlet of the dry powder tank.

[0012] Preferably, the electric powder spray nozzle consists of a trumpet-shaped protective shell and a powder spray head in the protective shell, a pipe hanging ring is installed on one side of the front end face of the rotating powder spray column, and the pipe body of the high-temperature resistant connecting pipe passes through the pipe hanging ring and is connected to the rotating connecting head.

[0013] Preferably, the walking mechanism includes a stabilizing plate horizontally and longitudinally fixed in the groove of the walking seat, walking wheels are longitudinally and horizontally rotatably provided on both sides of the top surface and the bottom surface of the stabilizing plate, driving motors are provided on both sides of the front end surface of the stabilizing plate, a transmission cavity is opened inside the stabilizing plate, worms are rotatably provided on both sides of the transmission cavity, and multiple vertical rotating shafts are rotatably provided on the outer side of the worm, a worm wheel meshing with the worm is fixedly sleeved in the middle of the rotating shaft, both ends of the rotating shaft are fixedly connected to the wheel axle of the walking wheel; one end of the worm is coaxially fixed to the driving motor; the outer wheel body of the walking wheel is an anti-slip rubber wheel structure.

[0014] Preferably, the boost mechanism includes mounting openings longitudinally opened at the upper and lower ends of the fixed seat, an electric telescopic rod installed in the mounting opening, an electromagnet plate installed at the rear of the telescopic end of the electric telescopic rod, and a storage groove opened at the upper and lower parts of the front end surface of the walking seat, a battery pack is installed in the rear end of the storage groove, and a galvanized iron plate that cooperates with the electromagnet plate is installed in the storage groove in front of the battery pack by screws.

[0015] Preferably, a guide plate is extended from the rear end of the lifting plate, and the rear end of the outer side surface of the guide plate is in the shape of an inclined surface, and the inner edge of the front end surface of the walking seat is in the shape of an arc surface.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention facilitates the use of an independent power supply to perform functions through the cooperation of the walking seat with the boosting mechanism and the track bar seat, and can also automatically patrol the rear end of the internal chamber of the faulty distribution board. Not only can the flame retardant powder spraying operation be performed quickly on the fault point where short circuit and smoking occur through real-time monitoring, but it is also convenient to perform powder spraying and fire extinguishing operations on the rear end of the electrical components on the cabinet door, effectively avoiding the occurrence of fire inside the distribution board. At the same time, through the cooperation of the auxiliary mechanism and the walking mechanism, the purpose of mobile powder spraying operation can also be achieved, and it can be adjusted according to different short circuits. The powder spraying operation at different angles and depths can be carried out at the smoking position of the road, so as to avoid the situation that the powder spraying from only one direction cannot be carried out on the rear end to extinguish the fire, thereby effectively reducing the probability of short circuit re-ignition, and the magnetic connection of the galvanized iron plate to the electromagnet plate makes it convenient for the walking mechanism to push the walking seat to the track bar seat for stable walking through the walking mechanism, and also facilitates the automatic retraction operation of the walking seat that completes the inspection or fire extinguishing operation, which can greatly improve the stability of the walking seat when it follows the lifting and moving of the lifting plate; improves the overall safety of the marine switchboard during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the power distribution board of the present invention from a first perspective;

[0020] Figure 3 A schematic diagram of the structure of the distribution board of the present invention from a second viewing angle;

[0021] Figure 4 It is a schematic diagram of the internal structure of the power distribution board of the present invention from a third perspective;

[0022] Figure 5 It is a schematic diagram of the structure of four groups of heat dissipation plate racks, four groups of lead screws and lifting plates of the present invention;

[0023] Figure 6 It is a schematic diagram of the positional relationship between the heat dissipation plate frame, the track bar seat and the lead screw of the present invention;

[0024] Figure 7 It is a schematic structural diagram of the heat dissipation plate frame and the track bar seat of the present invention from another perspective;

[0025] Figure 8 It is a schematic diagram of the structure of the lead screw, the lifting plate and the track bar seat from the first perspective of the present invention;

[0026] Fig. 9 It is a schematic structural diagram of the lead screw, the lifting plate and the track bar seat of the present invention from a second viewing angle;

[0027] Fig.10 It is a schematic structural diagram of the track bar seat, the dry powder tank and the walking seat from the first perspective of the present invention;

[0028] Fig.11 It is a schematic structural diagram of the track bar seat, the dry powder tank and the walking seat from a second viewing angle of the present invention;

[0029] Fig.12 It is a schematic structural diagram of the track bar seat, the dry powder tank and the walking seat from a third perspective of the present invention;

[0030] Fig.13 It is a schematic diagram of the state where the traveling seat of the present invention moves to the track bar seat;

[0031] Fig.14 It is a schematic diagram of the structure of the traveling seat, the track bar seat and the auxiliary mechanism of the present invention;

[0032] Fig.15 It is a schematic diagram of the structure of the walking seat, the self-locking motor and the stabilizing ring of the present invention;

[0033] Fig.16 It is a schematic diagram of the auxiliary structure of the present invention;

[0034] Fig.17 It is a schematic diagram of the structure of the walking mechanism, the walking seat and the lifting plate of the present invention;

[0035] Fig.18 It is a schematic diagram of the structure of the boosting mechanism, the fixing seat and the walking mechanism of the present invention;

[0036] Fig.19 It is a schematic diagram of the structure of the boosting mechanism and the walking mechanism of the present invention;

[0037] Fig. 20 It is a schematic cross-sectional view of the structure of one side of the stabilizing plate of the present invention.

[0038] Serial numbers in the figure: 1. cabinet body; 2. cabinet door; 3. heat sink frame; 4. lead screw; 5. threaded seat; 6. lifting plate; 7. fixed seat; 8. walking seat; 9. self-locking motor; 10. stabilizing ring; 11. rotating plate; 12. stirrup seat; 13. dry powder tank; 14. electric push rod; 15. drive box; 16. rotating powder spraying column; 17. memory metal connecting seat; 18. electric powder spraying nozzle; 19. electric valve pipe; 20. high temperature resistant connecting pipe; 21. hanging pipe ring; 22. track bar seat; 23. smoke sensor; 24. anti-skid track plate; 25. servo motor; 26. stabilizing plate; 27. walking wheel; 28. driving motor; 29. ​​worm; 30. worm wheel; 31. battery pack; 32. galvanized iron plate; 33. electric telescopic rod; 34. electromagnetic iron plate; 35. micro image monitor. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] Example 1: See Figures 1 to 20A marine DC switchboard comprises a cabinet body 1 and four cabinet doors 2. The cabinet body 1 is divided into four installation chambers. The cabinet body 1 at the front end of each installation chamber is hinged with a cabinet door 2. The front end surface of the cabinet door 2 is provided with installation openings of different shapes, and different electrical components are installed on the cabinet doors 2 at different positions; two heat dissipation plate racks 3 are installed in each installation chamber; a lifting groove is vertically opened at the front end of the inner wall of one side of each installation chamber, and a lead screw 4 is rotatably installed in the lifting groove; an installation chamber is opened inside the cabinet body 1 below the lifting groove, and the installation A servo motor 25 for driving the lead screw 4 is provided inside the cavity; a threaded seat 5 is sleeved on the lead screw 4, a vertical lifting plate 6 is fixedly connected to the outer end of the threaded seat 5, a U-shaped fixed seat 7 is fixedly connected to the front end of the outer side surface of the lifting plate 6, a walking seat 8 is slidably provided at the rear end of the outer side surface of the lifting plate 6, a booster mechanism for limiting the walking seat 8 is provided inside the fixed seat 7, a rotating plate 11 is rotatably provided on the outer side surface of the walking seat 8, stirrup seats 12 are installed at the upper and lower ends of the outer side surface of the rotating plate 11, and a dry powder tank 13 is vertically clamped between the two stirrup seats 12; the stirrups on the upper part of the rotating plate 11 An auxiliary mechanism for powder spraying adjustment is installed at the rear end of the top surface of the seat 12; track strip seats 22 are longitudinally installed at the upper, middle and lower positions of the inner wall of one side of the installation chamber, and a smoke sensor 23 for temperature monitoring is installed at the rear end of the track strip seat 22 at the upper part of the installation chamber. The upper part of the rear end surface of the walking seat 8 is used for the installation of a micro image monitor 35 for monitoring the inside of the chamber; through the cooperation of the walking seat 8 with the booster mechanism and the track strip seat 22, it is convenient to use an independent power supply to function, and it is also possible to automatically patrol the rear end of the internal chamber of the distribution board where a fault occurs. Not only can a flame retardant powder spraying operation be performed quickly on the fault point where short circuit smoke occurs through real-time monitoring, but it is also convenient to perform powder spraying and fire extinguishing operations on the rear end of the electrical components on the cabinet door 2, effectively avoiding fire inside the distribution board. At the same time, through the cooperation of the auxiliary mechanism and the walking mechanism, the purpose of mobile powder spraying operation can also be achieved, and powder spraying operations at different angles and depths can be performed according to different short circuit smoking positions, avoiding the situation where powder spraying from only the same direction cannot be performed on the rear end for powder spraying and fire extinguishing operations, thereby effectively reducing the probability of short circuit re-ignition.

[0041] In the present invention, a self-locking motor 9 is installed at the front end of the outer side of the walking seat 8, and the driving shaft of the self-locking motor 9 is fixedly connected to the rotating plate 11. A stabilizing ring 10 for stabilizing the rotation of the rotating plate 11 is fixedly connected to the outer side of the self-locking motor 9. A stabilizing ring groove is provided on the inner side of the rotating plate 11 to cooperate with the stabilizing ring 10, and one end of the stabilizing ring 10 is movably abutted against the inside of the stabilizing ring groove; the stabilizing ring 10 can improve the stability and smoothness of the rotating plate 11 during rotation adjustment, and avoid the driving shaft of the self-locking motor 9 from being subjected to a large gravity; the outer side of the track bar seat 22 is longitudinally penetrated by a T-shaped The movable groove is in the shape of a cross section, and the middle part of the inner top surface and the middle part of the inner bottom surface of the movable groove are longitudinally fixed with an anti-skid track plate 24. The walking seat 8 is also in the shape of a U-shaped block, and the cross-section of the track bar seat 22 is smaller than the cross-section of the slot of the walking seat 8; a walking mechanism matching the anti-skid track plate 24 is installed in the slot of the walking seat 8; the rear end surface of the fixed seat 7 can be equipped with a charging interface, and the front end surface of the walking seat 8 is equipped with a charging plug matching the charging interface, and the charging plug is electrically connected to the battery pack 31, so that when the walking seat 8 abuts against the fixed seat 7, the purpose of automatically charging the battery pack 31 can be achieved.

[0042] In the present invention, the auxiliary mechanism includes an electric push rod 14 vertically arranged at the top rear end of the stirrup seat 12 on the upper part of the rotating plate 11, a drive box 15 installed at the top of the telescopic rod of the electric push rod 14, a reciprocating motor arranged inside the drive box 15, and a rotating powder spraying column 16 rotatably installed on the inner side of the drive box 15 through a bearing, a pressurizing chamber is opened inside the rotating powder spraying column 16, and the rear end face and the top of the rotating powder spraying column 16 are connected and installed with a memory metal connecting seat 17, and an electric motor is sleeved on the memory metal connecting seat 17. A powder spray nozzle 18; a rotating connector is provided at the suspended end of the rotating powder spray column 16, and a high-temperature resistant connecting pipe 20 is connected to the outer end of the rotating connector, and the other end of the high-temperature resistant connecting pipe 20 is connected to an electric valve pipe 19, and the electric valve pipe 19 is installed at the powder outlet of the dry powder tank 13; the electric powder spray nozzle 18 is composed of a trumpet-shaped protective shell and a powder spray head in the protective shell, and a hanging pipe ring 21 is installed on one side of the front end face of the rotating powder spray column 16, and the tube body of the high-temperature resistant connecting pipe 20 passes through the hanging pipe ring 21 and is connected to the rotating connector.

[0043] Embodiment 2: The technical solution is basically the same as that of Embodiment 1, except that Fig.14 , Figures 16 to 20As shown, the walking mechanism includes a stabilizing plate 26 horizontally and longitudinally fixed in the groove of the walking seat 8, both sides of the top surface and the bottom surface of the stabilizing plate 26 are provided with walking wheels 27 for longitudinal and horizontal rotation, both sides of the front end surface of the stabilizing plate 26 are provided with driving motors 28, a transmission cavity is opened inside the stabilizing plate 26, both sides of the transmission cavity are provided with rotatable worms 29, and the outer sides of the worms 29 are provided with multiple vertical rotating shafts for rotation, the middle part of the rotating shaft is fixedly sleeved with a worm wheel 30 meshing with the worm 29, and both ends of the rotating shaft are fixedly connected to the wheel axle of the walking wheel 27; one end of the worm 29 is coaxially fixed to the driving motor 28; the outer wheel body of the walking wheel 27 is an anti-skid rubber wheel structure, which can improve the anti-skid effect and smoothness of the walking wheel 27 when walking on the anti-skid track plate 24.

[0044] In the present invention, the boost mechanism includes a mounting opening longitudinally opened at the upper and lower ends of the fixing seat 7, an electric telescopic rod 33 installed in the mounting opening, an electromagnet plate 34 installed at the rear of the telescopic end of the electric telescopic rod 33, and a storage groove opened at the upper and lower parts of the front end surface of the walking seat 8, a battery pack 31 is installed in the rear end of the storage groove, and a galvanized iron plate 32 matching the electromagnet plate 34 is installed in the storage groove in front of the battery pack 31 by screws; a guide plate is extended from the rear end of the lifting plate 6, and the rear end of the outer side surface of the guide plate is inclined, and the inner edge of the front end surface of the walking seat 8 is arc-shaped; The cooperation between the guide plate and the arc surface of the walking seat 8 can avoid the walking seat 8 from abutting and colliding with each other during the return movement. The magnetic connection of the electromagnet plate 34 to the galvanized iron plate 32 can facilitate the walking mechanism to push the walking seat 8 onto the track seat 22, and then the walking mechanism can make the walking seat 8 stably walk on the track seat 22. At the same time, it is also convenient to automatically retract the walking seat 8 that has completed the inspection or fire extinguishing operation, which can greatly improve the stability of the walking seat 8 when it follows the lifting and moving of the lifting plate 6, and improve the overall safety of the marine distribution board during use.

[0045] Working principle: In this embodiment, the present invention also proposes a method for using a marine DC switchboard, comprising the following steps:

[0046] Step 1: First, install the device on the ship, then install various marine power distribution instruments, power-off switches, drive switches and data indicators on the cabinet door 2, and electrically connect the various electrical components in the device to the external control device to ensure accurate signal transmission and control command execution; then install the dry powder tank 13 on the stirrup seat 12, and seal and connect one end of the high-temperature resistant connecting pipe 20 with the electric valve pipe 19 on the dry powder tank 13 to ensure that the dry powder can be sprayed smoothly;

[0047] Step 2: If an electrical short circuit occurs in a certain installation chamber and smoke is emitted, the smoke sensor 23 installed inside the installation chamber monitors the smoke particles generated by the short circuit inside the installation chamber, and wirelessly transmits the smoke concentration value to the external independent marine equipment control terminal, and the micro-image monitor 35 on the walking seat 8 also monitors the image inside the installation chamber, and then the external independent control terminal will autonomously analyze and determine where the fault point is based on the smoke concentration data fed back by the smoke sensor 23 and the image fed back by the micro-image monitor 35;

[0048] Step three, if the micro-image monitor 35 cannot see the fault picture inside the installation chamber, the servo motor 25 is started to drive the lead screw 4 to rotate, and the rotating lead screw 4 causes the threaded seat 5 to lift and move with the lifting plate 6, so that the lifting plate 6 can drive the fixed seat 7 and the walking seat 8 to move to the track bar seat 22 of the corresponding image acquisition area, and then the micro-image monitor 35 is used again to automatically capture images to see if a short circuit fault occurs in this area, and transmit it to the external independent control device; and if it is detected that a short circuit and smoke occur in this area, the external independent control device is used to control the electric telescopic rod 33 and the drive motor 28;

[0049] Step 4, when the electric telescopic rod 33 is started, the electromagnet plate 34 will be pushed against the galvanized iron plate 32, and then the walking seat 8 will be pushed to move toward the track bar seat 22, so that the rear end part of the walking seat 8 will slide to the track bar seat 22, and the stabilizing plate 26 on the walking seat 8 will slide in an arc and be inserted between the upper and lower anti-skid track plates 24, and the walking wheels 27 on the top and bottom sides of the stabilizing plate 26 are located on both sides of the anti-skid track plate 24, and then the driving motor 28 is started to drive the worm 29 to rotate, and the two worms 29 rotate in opposite directions, and then the walking wheels 27 on both sides of the stabilizing plate 26 can be driven to rotate in the opposite direction under the cooperation of the worm 29 and the worm wheel 30, so that it can pass The walking mechanism drives the walking seat 8 to move on the track bar seat 22, and after the electric telescopic rod 33 pushes the walking seat 8 onto the track bar seat 22 through the electromagnet plate 34, the electromagnet plate 34 is powered off, and the magnetic connection of the electromagnet plate 34 to the galvanized iron plate 32 is cancelled, so that the walking mechanism can drive the walking seat 8 to walk stably on the track bar seat 22. If the walking seat 8 needs to be returned to the lifting plate 6, the electric telescopic rod 33 is started to drive the energized electromagnet plate 34 to extend into the storage cavity of the walking seat 8, and the galvanized iron plate 32 is magnetically connected, and then the walking seat 8 can be pulled back to the lifting plate 6, so that the walking seat 8 is stably abutted against the fixed seat 7, and the retraction operation of the walking seat 8 is completed;

[0050] Step 5, and before the walking mechanism drives the walking seat 8 to walk inside the cabinet 1, the self-locking motor 9 is started to drive the rotating plate 11 to rotate ninety degrees, so that the driving box 15 rotates toward the inside of the cabinet 1. If a short circuit occurs on the instrument on the cabinet door 2 and a fire occurs, the walking seat 8 can be driven by the lifting plate 6 to perform a lifting operation, so that the components installed on the cabinet door 2 can be extinguished; and after moving on the track bar seat 22, when it is necessary to spray powder to extinguish the fire at the place where the short circuit smoke occurs, the electric push rod 14 is started to drive the driving box 15 to move and adjust Section, then start the electric valve tube 19 and the electric powder spray nozzle 18, so that the dry powder is sprayed toward the short-circuited place, and the reciprocating motor is controlled to drive the rotating powder spray column 16 to swing back and forth by 90 degrees, so as to facilitate the powder spraying operation on multiple short-circuited points, increase the area of ​​powder spraying fire extinguishing, and through the cooperation of the memory metal connecting seat 17 and the electric powder spray nozzle 18, it is convenient to realize the function of pre-deflection adjustment of the angle of the electric powder spray nozzle 18, further improve the efficiency and applicability of the electric powder spray nozzle 18 in the fire extinguishing operation inside the installation cavity.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A marine DC switchboard, comprising a cabinet body (1) and four cabinet doors (2), characterized in that: The cabinet body (1) is internally divided into four installation chambers, a cabinet door (2) is hingedly connected to the cabinet body (1) at the front end of each installation chamber, the front end surface of each cabinet door (2) is provided with installation openings of different shapes, and different electrical components are installed on the cabinet doors (2) at different positions; two heat dissipation plate racks (3) are installed in each installation chamber and are spaced apart from each other. A lifting slot is vertically provided at the front end of the inner wall of one side of each installation chamber, a lead screw (4) is rotatably installed in the lifting slot, an installation chamber is provided inside the cabinet (1) below the lifting slot, a servo motor (25) for driving the lead screw (4) is provided inside the installation chamber; a threaded seat (5) is sleeved on the lead screw (4), a vertical lifting plate (6) is fixedly connected to the outer end of the threaded seat (5), a U-shaped fixed seat (7) is fixedly connected to the front end of the outer side surface of the lifting plate (6), and a walking seat (8) is slidably provided at the rear end of the outer side surface of the lifting plate (6); The fixed seat (7) is provided with a boosting mechanism for limiting the position of the walking seat (8), and a rotating plate (11) is rotatably provided on the outer side surface of the walking seat (8). Stirrup seats (12) are installed at the upper and lower ends of the outer side surface of the rotating plate (11), and a dry powder tank (13) is vertically clamped between the two stirrup seats (12); an auxiliary mechanism for powder spraying adjustment is installed at the rear end of the top surface of the stirrup seat (12) on the upper part of the rotating plate (11).

2. A marine DC switchboard according to claim 1, characterized in that: Track seats (22) are longitudinally mounted at upper, middle and lower positions of the inner wall of one side of the installation chamber, a smoke sensor (23) for temperature monitoring is mounted at the rear end of the track seat (22) at the upper part of the installation chamber, and a micro image monitor (35) for monitoring the interior of the installation chamber is mounted at the upper end of the rear end surface of the walking seat (8).

3. A marine DC switchboard according to claim 2, characterized in that: A self-locking motor (9) is installed at the front end of the outer side surface of the walking seat (8); the driving shaft of the self-locking motor (9) is fixedly connected to the rotating plate (11); a stabilizing ring (10) for stabilizing the rotation of the rotating plate (11) is fixedly connected to the outer side of the self-locking motor (9); a stabilizing ring groove is formed on the inner side surface of the rotating plate (11) to cooperate with the stabilizing ring (10), and one end of the stabilizing ring (10) is movably abutted against the inside of the stabilizing ring groove.

4. A marine DC switchboard according to claim 2, characterized in that: The outer side surface of the track bar seat (22) is longitudinally penetrated by a moving groove with a T-shaped cross section, and the middle part of the inner top surface and the middle part of the inner bottom surface of the moving groove are longitudinally fixedly connected with an anti-skid track plate (24); the walking seat (8) is also a U-shaped block, and the cross section of the track bar seat (22) is smaller than the cross section of the slot of the walking seat (8); and a walking mechanism matching the anti-skid track plate (24) is installed in the slot of the walking seat (8).

5. A marine DC switchboard according to claim 1, characterized in that: The auxiliary mechanism comprises an electric push rod (14) vertically arranged at the top rear end of the stirrup seat (12) on the upper part of the rotating plate (11), a driving box (15) installed at the top of the telescopic rod of the electric push rod (14), a reciprocating motor arranged inside the driving box (15), and a rotating powder spraying column (16) rotatably installed on the inner side of the driving box (15) through a bearing, a pressurizing chamber is opened inside the rotating powder spraying column (16), a memory metal connecting seat (17) is installed on the rear end surface and the top of the rotating powder spraying column (16), and an electric powder spraying nozzle (18) is sleeved on the memory metal connecting seat (17).

6. A marine DC switchboard according to claim 5, characterized in that: The suspended end of the rotary powder spraying column (16) is provided with a rotating connector, and the outer end of the rotating connector is connected to a high temperature resistant connecting pipe (20), and the other end of the high temperature resistant connecting pipe (20) is connected to an electric valve pipe (19), and the electric valve pipe (19) is installed at the powder outlet of the dry powder tank (13).

7. A marine DC switchboard according to claim 6, characterized in that: The electric powder spray nozzle (18) is composed of a bell-shaped protective shell and a powder spray head in the protective shell. A pipe hanging ring (21) is installed on one side of the front end surface of the rotating powder spray column (16). The pipe body of the high-temperature resistant connecting pipe (20) passes through the pipe hanging ring (21) and is connected to the rotating connecting head.

8. A marine DC switchboard according to claim 4, characterized in that: The walking mechanism comprises a stabilizing plate (26) fixedly connected horizontally and longitudinally in a groove of a walking seat (8), walking wheels (27) are provided on both sides of the top surface and the bottom surface of the stabilizing plate (26) so as to be rotatable longitudinally, driving motors (28) are provided on both sides of the front end surface of the stabilizing plate (26), a transmission cavity is provided inside the stabilizing plate (26), worms (29) are rotatably provided on both sides of the transmission cavity, a plurality of vertical rotating shafts are rotatably provided on the outer side of the worm (29), a worm wheel (30) meshing with the worm (29) is fixedly sleeved in the middle of the rotating shaft, and both ends of the rotating shaft are fixedly connected to the wheel axle of the walking wheel (27); one end of the worm (29) is coaxially fixedly connected to the driving motor (28); and the outer wheel body of the walking wheel (27) is an anti-skid rubber wheel structure.

9. A marine DC switchboard according to claim 1, characterized in that: The boost mechanism comprises a mounting opening longitudinally opened at the upper and lower ends of a fixing seat (7), an electric telescopic rod (33) installed in the mounting opening, an electromagnet plate (34) installed at the rear of the telescopic end of the electric telescopic rod (33), and a storage groove opened at the upper and lower parts of the front end surface of a walking seat (8), a battery pack (31) being installed in the rear end of the storage groove, and a galvanized iron plate (32) cooperating with the electromagnet plate (34) being installed in the storage groove in front of the battery pack (31) by means of screws.

10. A marine DC switchboard according to claim 9, characterized in that: A guide plate extends from the rear end of the lifting plate (6), and the rear end of the outer side surface of the guide plate is in the shape of an inclined surface, and the inner edge of the front end surface of the walking seat (8) is in the shape of an arc surface.

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