Control box of electric actuating mechanism for ship

Abstract

An electric actuating mechanism control box for a ship comprises a main box body, an inner door frame, an inner door plate, an outer door plate and the like, the outer door plate is rotatably installed at an opening of the main box body, the inner door frame is welded and fixed in the main box body, and the inner door frame is close to the opening of the main box body and located behind the outer door plate. The inner door plate is rotatably installed on the inner door frame, a first sealing cavity used for containing circuit elements is formed between the inner door plate and the main box body, and a second sealing cavity is formed between the inner door plate and the outer door plate. When a button on the outer door plate fails, the outer door plate can be opened, emergency operation can be carried out by operating an operation surface cover part on the inner door plate, personnel cannot directly contact a circuit in the box body, the safety performance is higher, and the internal circuit can be quickly and conveniently overhauled and maintained by opening the inner door; furthermore, a vibration isolator is installed on the back of the main box body, strong shock interference can be effectively reduced, influences caused by extremely severe environments are reduced, and the use performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control boxes, in particular to a control box for an electric actuator for a ship. Background Art

[0002] With the rapid development of the marine industry, electric actuators are increasingly used in ship systems, valves, and pipelines. Electric actuators are driven by electric motors and use DC current as the control and feedback signal. When a host computer or host computer issues a control signal, the actuator's output shaft moves proportionally to the signal, opening the valve or damper to the corresponding opening. The system's opening signal is then fed back to the control room, completing the system's regulation function. Due to the compact space on ships, the mounting location for electric actuators is often narrow, necessitating the installation of a remote control cabinet via cables. This cabinet must also provide the same control, feedback, and display functions as the electric actuator.

[0003] The existing control box is protected by a sliding door. If the door is stuck, it becomes inoperable. The internal components only have one protective device. If the protective door is accidentally hit or damaged, the control box may not work. The internal components only have one protective device. If the protective door is accidentally hit or damaged, the control box may not work.

[0004] The above information disclosed in this Background section is included only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not form the prior art that is currently known to a person of ordinary skill in the art. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide a control box for an electric actuator for a ship in view of the above-mentioned defects of the prior art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: constructing a control box for an electric actuator for a ship, comprising a main box body, an inner door frame, an inner door panel and an outer door panel made of corrosion-resistant material, the front of the main box body is open, the outer door panel can be rotatably installed at the open opening of the main box body to cover the main box body, the inner door frame is welded and fixed in the main box body, the inner door frame is close to the open opening of the main box body and is located behind the outer door panel, the inner door panel can be rotatably installed between the inner door frame and the main box body to form a space for placing circuit elements A first sealed cavity of the component is formed between the inner door panel and the outer door panel, and a second sealed cavity is formed between the inner door panel and the outer door panel. An operation surface cover component connected to the circuit in the first sealed cavity is installed on the front of the inner door panel. The front installation priority of the outer door panel is higher than the operation button of the operation surface cover component so that when the button of the outer door panel fails, the outer door panel can be opened and the operation surface cover component can be used for emergency operation. A wire through hole is provided on the inner door frame, and the wiring harness of the circuit in the first sealed cavity enters the second sealed cavity through the wire through hole and is connected with the button on the outer door panel.

[0007] Furthermore, in the electric actuator control box for ships described in the utility model, a first annular sealing groove is formed along the edge of the back side of the outer door panel, a sealing strip is installed in the first sealing groove, and a second sealing groove is provided on the inner door frame, and the sealing strip is stuck in the second sealing groove when the outer door panel is closed.

[0008] Furthermore, in the electric actuator control box for ships of the present invention, the main box body and the inner door frame are both formed by bending stainless steel sheet metal, and the joints between adjacent bends are fixed by welding;

[0009] The main box body includes a back plate and four side plates connected to the back plate, the inner door frame is surrounded by the four side plates, and the wire through hole is opened on the side plates of the inner door frame;

[0010] The side of the side panel of the main box body facing away from the back panel is turned inward, and the inwardly turned edge is welded and fixed to the side panel of the inner door frame, so that the side panel of the main box body and the side panel of the inner door frame are spaced apart to facilitate routing of the wires to the wire through hole;

[0011] The side of the side plate of the inner door frame close to the back plate is turned inward and blocks the inner door plate, and the side of the side plate of the inner door frame away from the back plate is turned outward and forms the second sealing groove.

[0012] Furthermore, in the electric actuator control box for ships described in the utility model, the wire through hole is opened on the left / right side panel of the inner door frame, and the upper and lower side panels of the inner door frame are opened with pin holes facing each other, and the top and bottom of the inner door panel are rotatably installed by cooperating with the pin and the pin hole.

[0013] Furthermore, in the control box of the electric actuator for ships described in the utility model, a mounting hole for installing the operating surface cover component is provided on the inner door panel; the operating surface cover component includes a control panel and buttons respectively connected thereto and a display panel equipped with a liquid crystal display screen, and the display panel and the control panel are on the back of the operating surface cover component to be connected to other circuits in the first sealed cavity; a file box is also welded on the front of the inner door panel for storing various related documents.

[0014] Furthermore, in the control box of the electric actuator for ships described in the utility model, a window is provided in the area corresponding to the operating surface cover component on the outer door panel to observe the operating surface cover component, and a glass mounting groove surrounding the window is provided on the back of the outer door panel. The window glass is arranged in the glass mounting groove and is pressed by a glass pressure plate. A sealing gasket is provided between the contact surface of the window glass and the glass mounting groove, and a sealing buffer gasket is provided between the contact surface of the window glass and the glass pressure plate.

[0015] Furthermore, in the electric actuator control box for ships described in the utility model, a vibration isolation bracket is welded to the back of the back plate of the main box body, a vibration isolator is installed on the vibration isolation bracket, one end of the vibration isolator is connected to the vibration isolation bracket by a screw, and the other end of the vibration isolator is provided with a threaded hole for connection with the mounting surface; a lifting ring is welded on the upper side plate of the main box body to assist in the installation of the entire control box, and a plurality of threaded holes for installing explosion-proof cable connectors are provided on the lower side plate of the main box body.

[0016] Furthermore, in the control box of the electric actuator for ships described in the utility model, a plurality of studs for positioning and installing the component mounting plate are welded on the front of the back plate of the main box body, and through holes are evenly distributed on the component mounting plate to facilitate the installation and fixation of components. Horizontal and vertical wire trough base plates are also installed on the component mounting plate, and the wire trough upper cover is fastened to the wire trough base plate by a snap-fit form, and the component wiring harness passes through the wire trough formed by the wire trough base plate and the wire trough upper cover.

[0017] Furthermore, in the electric actuator control box for ships described in the present invention, the outer door panel is rotatably connected to the left / right side wall of the main box body through a hinge and is locked by a tongue lock with a waterproof cover.

[0018] Furthermore, in the electric actuator control box for ships of the present invention, a grounding screw is installed on the back of the outer door panel, and a connecting wire of the grounding screw passes through a threaded hole on the lower side panel of the main box body to be grounded;

[0019] The wiring fixing plate is vertically welded to the back of the outer door panel. The wiring fixing plate is provided with evenly distributed through holes, and the wiring harness can be fixed by rolling strips to standardize the wiring.

[0020] The electric actuator control box for ships of the present invention has the following beneficial effects: the present invention welds an inner door frame at the opening of the main box body, which can be used to install the inner door panel, and forms a sealed cavity between the inner door panel, the outer door panel and the inner door frame, and an operating panel cover component connected to the internal circuit is installed on the front of the inner door panel. The front installation priority of the outer door panel is higher than the operating button of the operating panel cover component, and a wire through hole is provided on the inner door frame. The wiring harness of the circuit in the first sealed cavity enters the second sealed cavity through the wire through hole and is connected to the button on the outer door panel. In this way, not only is double insurance reduced, but also the risk of unauthorized personnel making mistakes is reduced. The chance of collision is reduced, and when the button on the outer door panel fails, the outer door panel can be opened and emergency operation can be performed through the operation cover component. The operator will not directly contact the internal circuit of the box, which has higher safety performance and better protection effect. When the inner door is opened, the internal circuit can be inspected and maintained quickly and conveniently; furthermore, a sealing strip is used between the outer door and the inner door frame to achieve better waterproof and dustproof functions; the corrosion-resistant stainless steel material is used, which can better adapt to the marine environment; a vibration isolator is installed on the back of the main box, which can effectively reduce strong earthquake interference, reduce the impact of extremely harsh environment, and improve performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only embodiments of the present invention. Those skilled in the art can obtain other drawings based on the provided drawings without inventive work.

[0022] Figure 1 This is a structural diagram of the electric actuator control box for ships of the utility model;

[0023] Figure 2 This is a schematic diagram of the outer door panel of the electric actuator control box for ships of the present invention being opened;

[0024] Figure 3 yes Figure 2 A cross-sectional view of the AA position in FIG;

[0025] Figure 4 It is a partial structural diagram of the main box. DETAILED DESCRIPTION

[0026] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the relevant drawings. Typical embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0027] refer to Figure 1-3 The electric actuator control box for ships of this embodiment includes a vibration isolator 1, a main box body 2 made of corrosion-resistant material, an inner door frame 9, an inner door panel 8, an outer door panel 4, and the like.

[0028] The main box body 2 has a simple structure and processing technology. It is basically made of 316 stainless steel sheet metal parts that are bent and the joints between adjacent bends are fixed by welding. The cost is low. Compared with carbon steel, 316 stainless steel can resist corrosion more effectively and adapt to a wider range of environments. The main box body 2 is in the shape of a rectangular box with an open front, including a back panel at the back and four side panels at the top, bottom, left and right that are vertically connected to the back panel. These four side panels can be formed by bending and the adjacent side panels are welded and fixed. Combined with Figure 4 , Figure 4 The upper and lower side panels are concealed in the main housing 2. The front opening of the main housing 2 houses two doors: an inner door panel 8 and an outer door panel 4. Two lifting rings 15 are welded to the upper side panel of the main housing 2 to assist in the installation of the entire control box. Four threaded holes are provided on the lower side panel for installing explosion-proof cable connectors, which can pass power cables, signal cables, ground cables, etc.

[0029] Four studs for positioning and installing the component mounting plate 14 are welded on the front of the back plate of the main box body 2. The component mounting plate 14 passes through the studs, and the upper end is fixed with a flat washer, an elastic washer, and a hexagonal nut. Through holes are evenly distributed on the component mounting plate to facilitate the installation and fixation of components. The components include micro-break switches, terminal blocks, power boards, etc. The micro-break switches are clamped and fixed with terminal fixings, and the power boards are fixed to the mounting plate with studs. Horizontal and vertical wire trough base plates are also installed on the component mounting plate, and the wire trough base plates are fixed with screws. The wire trough cover is fastened to the wire trough base plate by a snap-on buckle, and the component wiring harness passes through the inside of the wire trough formed by the wire trough base plate and the wire trough cover.

[0030] Four vibration isolation brackets are welded on the back of the back plate of the main box body 2, and four vibration isolators 1 are installed on the vibration isolation bracket. One end of the vibration isolator 1 is connected to the vibration isolation bracket by a screw, and the other end of the vibration isolator 1 has a threaded hole for connection with the mounting surface.

[0031] The inner door frame 9 is welded and fixed in the main box body 2, and the inner door frame 9 is close to the open mouth of the main box body 2 and is located behind the outer door panel 4. Specifically, the inner door frame 9 is a rectangular drawer without a bottom plate formed by four side panels: upper, lower, left and right. The inner door frame 9 is also made of 316 stainless steel sheet metal and the joints between adjacent bends are fixed by welding. The right side panel of the inner door frame 9 is provided with three wire through holes 901 for leading out the cables in the main box body 2. For example, the wiring harness on the power board, micro-breaker, and terminal block can pass through the hole and be connected to the operation button 5 and display button 6 on the outer door panel 4. The side of the side panel of the main box body 2 facing away from the back panel is turned inward (turning inward means turning toward the inner space of the main box body 2) and the inner turning edge is welded and fixed to the side panel of the inner door frame 9, so that the side panel of the main box body 2 and the side panel of the inner door frame 9 are spaced apart to facilitate routing of the wires to the wire through hole 901. More specifically, referring to Figure 3 The inner flange is composed of two extensions. Specifically, the edge of the side panel first extends vertically toward the opposite side panel (or can extend obliquely toward the back panel) to form a first extension, and then continues to extend away from the back panel to form a second extension. The side panel of the inner door frame 9 is in surface contact with the second extension and is welded to it.

[0032] The inner door panel 8 is rotatably mounted on the inner door frame 9, forming a first sealed cavity for accommodating circuit components between the inner door panel 8 and the main housing 2. A second sealed cavity is formed between the inner door panel 8 and the outer door panel 4. Specifically, the upper and lower side panels of the inner door frame 9 have spring iron sheet latch holes facing each other at the left rear corner. The top and bottom of the inner door panel 8 are rotatably mounted by two spring iron sheet latches that cooperate with the latch holes. The side of the side panel of the inner door frame 9 near the back panel flips inward and blocks the inner door panel 8. A tang lock is installed on the inner door panel 8 and locked to the inner door frame 9 to prevent foreign objects from entering. The front of the inner door frame 9 has a mounting hole for mounting an operating panel cover component 7 connected to the circuit in the first sealed cavity. The operating panel cover component 7 includes a control panel, as well as buttons and a display panel connected thereto. The buttons can specifically be remote / local selection buttons, valve opening and closing operation buttons, etc. The display panel and control panel are screwed to the back of the operating panel cover 7 to connect to the other circuits within the first sealed chamber. A liquid crystal display is mounted on the display panel. A document box 10 is welded to the front of the inner door panel 8, below the operating panel cover 7, for storing various related documents, such as user manuals, maintenance records, and wiring diagrams.

[0033] The outer door panel 4 is rotatably mounted at the front opening of the main housing 2 to seal the main housing 2. Specifically, the outer door panel 4 is also formed by bending and welding sheet metal. It is pivotally connected to the edge of the left panel of the main housing 2 via a hinge. A cam lock 3 is installed to lock the outer door panel 4, preventing foreign objects from entering. The cam lock is equipped with a waterproof cover to prevent water damage and prevent accidental operation. The cam lock can be opened and closed using a dedicated hexagonal wrench. Various operating buttons 5 and a display button 6 are mounted on the front of the outer door panel 4. The wiring harness for the circuit in the first sealed chamber enters the second sealed chamber through the wire through-hole and connects to the various buttons on the outer door panel 4. The operating buttons include valve open, valve close, stop, remote / local, and mute buttons, which can be used to activate corresponding functions and clear alarm faults. The display buttons include power, fully closed, fully open, buzzer alarm, and alarm prompt buttons, providing clear and intuitive display of the electric actuator status. Furthermore, the priority of the operation buttons on the outer door panel 4 is higher than that of the operation buttons on the operating surface cover 7. This allows the outer door panel 4 to be opened and the operating surface cover 7 to be used for emergency operation if the buttons on the outer door panel 4 fail. The control panel controls the action of the electric actuator and receives feedback signals. A grounding screw 11 is installed on the back of the outer door panel 4. The connection wire of the grounding screw 11 is passed through a threaded hole on the lower side panel of the main box 2 to ensure the safety of the equipment's electrical use and avoid the risk of leakage.

[0034] The outer door panel 4 and the inner door frame 9 are sealed with a sealing strip 13, achieving waterproof and dustproof functions. Specifically, the back of the outer door panel 4 forms an annular first sealing groove along its edge, and the sealing strip 13 is installed in the first sealing groove. The side of the side panel of the inner door frame 9, away from the back panel, is turned outward to form a second sealing groove. The sealing strip 13 is locked into the second sealing groove when the outer door panel 4 is closed.

[0035] A window is provided in the area of the outer door panel 4 corresponding to the operating panel cover 7 to facilitate viewing of the operating panel cover 7. A glass mounting groove surrounds the window on the back of the outer door panel 4. The viewing glass 12 is positioned within the groove and held in place by four glass pressure plates 16. Changes in the valve position on the display screen can be visually viewed through the glass window. The viewing glass is explosion-proof to prevent breakage from violent impact and ensure strength. The contact surface of the glass mounting groove on the outer door panel 4 must maintain a rough surface to prevent scratches and cracks. An epoxy resin gasket is provided between the contact surface of the viewing glass and the glass mounting groove to ensure sealing performance. A rubber sealing buffer is provided between the contact surface of the viewing glass and the glass pressure plate 16. The glass pressure plate 16 presses against the rubber sealing buffer, which in turn compresses the viewing glass, providing cushioning and enhancing sealing performance. A wiring fixing plate 17 is vertically welded to the back of the outer door panel 4. The wiring fixing plate 17 has evenly spaced through-holes, allowing the wiring harness to be secured with a rolled strip, thus standardizing wiring.

[0036] This embodiment has the following advantages: it has two doors, an inner door and an outer door, both equipped with tongue locks, providing dual security to reduce the chance of accidental contact by unauthorized personnel. A sealing strip is used between the outer door and the inner door frame to provide excellent waterproof and dustproof properties. If the operating button on the outer door fails, the outer door can be opened and the operating button on the inner door panel can be used for emergency operation. When the inner door is closed, emergency operation can be performed without the operator directly contacting the switches and circuits inside the box, thereby enhancing safety and providing better protection. When the inner door is opened, components can be quickly and conveniently inspected and maintained. Four vibration isolators are installed on the back to effectively reduce strong earthquake interference and the impact of extreme environmental conditions, thereby improving performance. 316 stainless steel is used, which is more resistant to corrosion than carbon steel and is more adaptable to marine environments. The power status, valve fully closed and fully open status, buzzer alarm information, and other alarm status prompts can be clearly and intuitively displayed. The operating panel cover on the inner door panel has a display function, and information such as the electric actuator valve position can be intuitively viewed through a display window.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0039] Terms containing ordinal numbers, such as "first" and "second," used in this specification may be used to describe various components, but these components are not limited by these terms. These terms are used solely to distinguish one component from another. For example, a first component may be named a second component, and similarly, a second component may be named a first component, without departing from the scope of the present invention.

[0040] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which are all within the protection of the present invention.

Claims

1. A control box for an electric actuator for a ship, characterized in that: The door lock is configured to lock the door lock in place and to lock the keyway in place when the key is unlocked, the keyway being secured to the keyway in place and the keyway being unlocked when the key is unlocked.

2. The electric actuator control box for ships according to claim 1, characterized in that: A first annular sealing groove is formed along the edge of the back of the outer door panel, a sealing strip is installed in the first sealing groove, and a second sealing groove is provided on the inner door frame, and the sealing strip is inserted into the second sealing groove when the outer door panel is closed.

3. The electric actuator control box for ships according to claim 2, characterized in that: The main box body and the inner door frame are both formed by bending stainless steel sheet metal, and the joints between adjacent bends are fixed by welding; The main box body includes a back plate and four side plates connected to the back plate, the inner door frame is surrounded by the four side plates, and the wire through hole is opened on the side plates of the inner door frame; The side of the side panel of the main box body facing away from the back panel is turned inward, and the inwardly turned edge is welded and fixed to the side panel of the inner door frame, so that the side panel of the main box body and the side panel of the inner door frame are spaced apart to facilitate routing of the wires to the wire through hole; The side of the side plate of the inner door frame close to the back plate is turned inward and blocks the inner door plate, and the side of the side plate of the inner door frame away from the back plate is turned outward and forms the second sealing groove.

4. The electric actuator control box for a ship according to claim 3, characterized in that: The wire through holes are opened on the left / right side panels of the inner door frame, and the upper and lower side panels of the inner door frame are opened with latch holes facing each other. The top and bottom of the inner door panel are rotatably installed by the cooperation of the latch and the latch holes.

5. The electric actuator control box for a ship according to claim 3, characterized in that: The inner door panel is provided with a mounting hole for mounting the operation surface cover component; the operation surface cover component includes a control panel and buttons connected thereto respectively, and a display panel equipped with a liquid crystal display screen; the display panel and the control panel are located on the back of the operation surface cover component to be connected to other circuits in the first sealed cavity; a file box is also welded on the front of the inner door panel for storing various related documents.

6. The electric actuator control box for a ship according to claim 1, characterized in that: A window is provided on the outer door panel in an area corresponding to the operation surface cover component to facilitate observation of the operation surface cover component; a glass mounting groove surrounding the window is provided on the back of the outer door panel; the window glass is arranged in the glass mounting groove and is pressed by a glass pressing plate; a sealing gasket is provided between the contact surface of the window glass and the glass mounting groove; and a sealing buffer gasket is provided between the contact surface of the window glass and the glass pressing plate.

7. The electric actuator control box for a ship according to claim 1, characterized in that: A vibration isolation bracket is welded on the back of the back plate of the main box body, and a vibration isolator is installed on the vibration isolation bracket. One end of the vibration isolator is connected to the vibration isolation bracket by a screw, and the other end of the vibration isolator is provided with a threaded hole for connection with the mounting surface; a lifting ring is welded on the upper side plate of the main box body to assist in the installation of the entire control box, and a plurality of threaded holes for installing explosion-proof cable connectors are provided on the lower side plate of the main box body.

8. The electric actuator control box for a ship according to claim 1, characterized in that: A plurality of studs for positioning and installing the component mounting plate are welded on the front of the back plate of the main box body. Through holes are evenly distributed on the component mounting plate to facilitate the installation and fixation of components. Horizontal and vertical wire trough base plates are also installed on the component mounting plate. The wire trough upper cover is fastened to the wire trough base plate by a snap-fit, and the component wiring harness passes through the wire trough formed by the wire trough base plate and the wire trough upper cover.

9. The electric actuator control box for a ship according to claim 1, characterized in that: The outer door panel is rotatably connected to the left / right side wall of the main box body through a hinge and is locked by a tongue lock with a waterproof cover.

10. The electric actuator control box for a ship according to claim 1, characterized in that: A grounding screw is installed on the back of the outer door panel, and the connecting wire of the grounding screw passes through the threaded hole on the lower side panel of the main box body to be grounded; The wiring fixing plate is vertically welded to the back of the outer door panel. The wiring fixing plate is provided with evenly distributed through holes, and the wiring harness can be fixed by rolling strips to standardize the wiring.

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