Ship electrical box door cover opening and closing limiting device
By introducing height adjustment and self-locking components into the limit device for the electrical box door of a ship, the problems of looseness and cumbersome operation of the existing device have been solved, realizing flexible adjustment and automatic locking of the door height, and improving the convenience and safety of use.
Patent Information
- Application Number
- CN202423251027.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The existing limit devices for the door cover of the ship's electrical box are prone to loosening after long-term use, resulting in unstable support. Moreover, the disassembly and assembly process is cumbersome, affecting the user experience and safety.
Design a limit device for a marine electrical box door cover that includes a height adjustment component and a self-locking component. The door cover height can be flexibly adjusted through a gear structure driven by a motor, and the door cover can be automatically locked when it is opened to prevent accidental closure.
It enables flexible adjustment of the door height according to different ship designs and usage requirements, adapting to various scenarios, reducing operation steps, improving ease of use and safety, and enhancing market competitiveness.
Smart Images
Figure CN223843415U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of marine technology, and more specifically, it relates to a limit device for opening and closing of a marine electrical box door cover. Background Technology
[0002] Marine electrical boxes are constructed of robust steel to provide effective protection for internal components. However, the box door requires reliable support when opened. Currently, the limiting support device uses a spring-loaded inclined plate for fixation, but this design is prone to loosening after prolonged use, affecting the door's stability. Furthermore, the device's assembly and disassembly are cumbersome, increasing operational difficulty and reducing practicality. This situation does not meet user needs, and there is an urgent need for a more robust and convenient support solution to improve user experience and safety. Therefore, it is necessary to provide a new limiting device for the opening and closing of marine electrical box doors to solve the aforementioned technical problems.
[0003] Existing technology includes a device entitled "An Opening and Closing Limiting Device for a Ship's Electrical Box Door Cover," with publication number CN218772715U. This technology discloses an opening and closing limiting device for a ship's electrical box door cover, comprising a vertical cylinder. The top of the vertical cylinder is connected to a support structure, which includes a vertical rod, a rotating cylinder, a threaded joint, a sleeve plate, an inclined plate, and a bracket. The bottom of the vertical rod is fixedly connected to the top of the vertical cylinder, and the outer wall of the vertical rod is slidably engaged with the inner wall of the rotating cylinder. The upper part of the outer wall of the vertical rod is threaded. This device, through the upward movement of the rotating cylinder on the outer wall of the vertical rod within the support structure, coordinates with the inclined plate to push the bracket outward. Subsequently, the inner wall of the rotating cylinder is threadedly connected to the upper part of the vertical rod, completing the positional support of the door cover. This alters the elastic support, preventing loosening and ensuring stable support. A curved rod drives the grooved plate to move inward, and the moving grooved plate drives the clamping plate to tighten the connecting block. This device is easy to assemble and disassemble, reduces operational difficulty, improves practicality, and facilitates widespread use.
[0004] However, this technology does not address the technical issues and solutions of this application. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a ship electrical box door opening and closing limit device that is simple in structure, can flexibly adjust the height of the door cover according to different ship design and usage requirements, adapts to various scenarios, and can automatically lock when the door cover is opened to prevent accidental closure.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] This utility model is a limit device for opening and closing a door cover of a marine electrical box. The box is equipped with a height adjustment component, and a column is set at the top of the box. The height adjustment component is movably connected to the column. A fixed plate is connected to the top of the column. The top of the fixed plate is rotatably connected to a turntable via a rotating shaft. A component connecting rod is installed above the turntable. One end of the component connecting rod is equipped with a self-locking component, and the other end of the component connecting rod is movably connected to a fixed rod. Both ends of the fixed rod are rotatably connected to connecting frames, and a connecting block is fixedly connected to one side of the connecting frame.
[0008] The enclosure is fixedly connected to the electrical box, and the connecting block is connected to the door cover of the electrical box.
[0009] The self-locking assembly includes a housing, which is fixedly connected to one side of the component connecting rod. A square block is movably connected to the inside of the housing. An elastic element is fixedly connected to one end of the square block. A pull rod is fixedly connected to the center of one end of the square block. A circular groove is opened at one end of the component connecting rod.
[0010] The inner wall of the housing is provided with a square groove, the side of the square block fits into the inner side of the square groove, and the square block and the square groove form a sliding connection structure.
[0011] The circular groove has a square hole on its inner side. The side of the square block and the circular groove form a rotating connection structure. The cross-sectional shape of the square block is the same as the cross-sectional shape of the square hole. The square block forms a limiting structure for the component connecting rod through the square hole.
[0012] The first motor of the height adjustment assembly is fixedly connected to the bottom wall of the housing. The output end of the first motor is fixedly connected to the first gear through a coupling. The side of the first gear is meshed with the second gear.
[0013] The bottom end of the second gear is fixedly connected to a support rod, and the top end of the second gear is fixedly connected to a threaded rod. The side of the threaded rod and the inner wall of the column form a threaded connection structure. A fixed column is fixedly connected to the center of the top of the box, and a limit block is fixedly connected to one end of the fixed column.
[0014] The bottom end of the column is provided with a limiting groove, the side of the limiting block is in contact with the inside of the limiting groove, and the limiting block and the limiting groove form a sliding connection structure.
[0015] The second gear comprises two gears, which are symmetrically distributed on the side of the first gear, and the two second gears rotate in the same direction.
[0016] The connecting block has four screw holes on its surface, and the connecting block is fixedly connected to the door cover by bolts passing through the screw holes.
[0017] The working principle and beneficial effects of this utility model are as follows:
[0018] The marine electrical box door opening and closing limit device of this utility model includes a height adjustment component inside the box and a column at the top of the box. The height adjustment component is movably connected to the column, and when the height adjustment component is activated, it can cause the column to rise and fall relative to the box. A fixed plate is connected to the top of the column, and a turntable is rotatably connected to the top of the fixed plate via a rotating shaft. A component connecting rod is installed above the turntable. When the column rises and falls relative to the box, the component connecting rod can drive a connecting block to open the door. A self-locking component is provided at one end of the component connecting rod, and a fixed rod is movably connected to the other end of the component connecting rod. Connecting frames are rotatably connected to both ends of the fixed rod, and a connecting block is fixedly connected to one side of the connecting frame. After the door is opened to the correct angle, the self-locking component can fix the position of the component connecting rod to prevent the door from closing accidentally. The beneficial effects of this utility model's structure are as follows: 1. The height adjustment component allows for flexible adjustment of the door cover height according to different ship designs and usage requirements, adapting to various scenarios. It can be quickly adjusted according to specific needs, saving time and effectively improving work efficiency. Simultaneously, it is applicable to electrical boxes of different models and specifications, enhancing the product's market competitiveness. Adjusting the height as needed effectively utilizes space and reduces the area occupied by the equipment on the ship. 2. The self-locking component automatically locks the door cover when it is opened, preventing accidental closure and ensuring operator safety. Opening and locking are simple operations, reducing cumbersome manual steps and improving ease of use. It ensures the door cover remains fixed in the open state and will not move due to external factors, while also reducing reliance on operators, making single-person operation safer and more efficient. Attached Figure Description
[0019] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein:
[0020] Figure 1 This is a schematic diagram of the opening and closing limit device for the ship electrical box door of the present invention;
[0021] Figure 2 This is a schematic diagram of the self-locking component of the ship electrical box door opening and closing limit device described in this utility model;
[0022] Figure 3 This is a schematic diagram of the height adjustment component of the marine electrical box door opening and closing limit device described in this utility model;
[0023] Figure 4 This is a schematic diagram of the opening and closing limit device for the ship electrical box door of the present invention;
[0024] The labels in the attached diagram are as follows: 1. Housing; 2. Height adjustment assembly; 3. Column; 4. Fixing plate; 5. Turntable; 6. Component connecting rod; 7. Self-locking assembly; 8. Fixing rod; 9. Connecting frame; 10. Connecting block; 11. Housing; 12. Square block; 13. Elastic element; 14. Pull rod; 15. Square groove; 16. Circular groove; 17. Square hole; 18. First motor; 19. First gear; 20. Second gear; 21. Threaded rod; 22. Fixing column; 23. Limiting block; 24. Limiting groove; 25. Support rod. Detailed Implementation
[0025] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:
[0026] As attached Figure 1 -Appendix Figure 3As shown, this utility model is a limit device for opening and closing a marine electrical box door. The box body 1 contains a height adjustment component 2, and a column 3 is located at the top of the box body 1. The height adjustment component 2 is movably connected to the column 3. A fixing plate 4 is connected to the top of the column 3. The top of the fixing plate 4 is rotatably connected to a turntable 5 via a rotating shaft. A component connecting rod 6 is installed above the turntable 5. One end of the component connecting rod 6 is equipped with a self-locking component 7, and the other end of the component connecting rod 6 is movably connected to a fixing rod 8. Connecting frames 9 are rotatably connected to both ends of the fixing rod 8, and a connecting block 10 is fixedly connected to one side of the connecting frame 9. This structure addresses the shortcomings of existing technologies by proposing an improved technical solution. In the structural design, a height adjustment component 2 is installed inside the housing 1, and a column 3 is installed at the top of the housing 1. The height adjustment component 2 is movably connected to the column 3. When the height adjustment component 2 is activated, it can cause the column 3 to rise and fall relative to the housing 1. A fixing plate 4 is connected to the top of the column 3, and a turntable 5 is rotatably connected to the top of the fixing plate 4 via a rotating shaft. A component connecting rod 6 is installed above the turntable 5. When the column 3 rises and falls relative to the housing 1, the component connecting rod 6 can drive the connecting block to open the door. A self-locking component 7 is installed at one end of the component connecting rod 6, and a fixing rod 8 is movably connected to the other end of the component connecting rod 6. A connecting frame 9 is rotatably connected to both ends of the fixing rod 8, and a connecting block 10 is fixedly connected to one side of the connecting frame 9. After the door is opened to the correct angle, the self-locking component can fix the position of the component connecting rod 6 to prevent the door from closing accidentally. The beneficial effects of this utility model are as follows: 1. The height adjustment component 2 allows for flexible adjustment of the opening angle of the electrical box door according to different ship designs and usage requirements, adapting to various scenarios. It can be quickly adjusted according to specific needs, saving time and effectively improving work efficiency. It is also applicable to electrical boxes of different models and specifications, enhancing the product's market competitiveness. Adjusting the height as needed effectively utilizes space and reduces the area occupied by the equipment on the ship. 2. The self-locking component automatically locks the door when it is open, preventing accidental closure and ensuring operator safety. Simple operation is all that's needed to open and lock, reducing cumbersome manual steps and improving ease of use. It ensures the door remains fixed when open and will not move due to external factors, reducing reliance on operators and making single-person operation safer and more efficient. The ship electrical box door opening and closing limit device described in this utility model has a simple structure, allowing for flexible adjustment of the door height according to different ship designs and usage requirements, adapting to various scenarios. It also automatically locks the door when it is open to prevent accidental closure.
[0027] The enclosure 1 is connected to the electrical box, and the connecting block 10 is connected to the door cover of the electrical box. This structure, connecting the electrical box and the door cover, reliably enables the opening and closing of the door cover. Furthermore, once the door cover is open, a self-locking mechanism ensures that it cannot close automatically.
[0028] The self-locking assembly 7 includes a housing 11, which is fixedly connected to one side of the component connecting rod 6. A square block 12 is movably connected to the inner side of the housing 11. An elastic element 13 is fixedly connected to one end surface of the square block 12, and a pull rod 14 is fixedly connected to the center of one end of the square block 12. A circular groove 16 is formed at one end of the component connecting rod 6. A square groove 15 is formed on the inner wall of the housing 11, and the side of the square block 12 fits against the inner side of the square groove 15, forming a sliding connection structure. A square hole 17 is formed on the inner side of the circular groove 16, and the side of the square block 12 forms a rotating connection structure with the circular groove 16. The cross-sectional shape of the square block 12 is the same as the cross-sectional shape of the square hole 17, and the square block 12 forms a limiting structure for the component connecting rod 6 through the square hole 17. The above structure specifically defines the structure of the self-locking assembly. When the door is opened to a certain angle, the self-locking assembly 7 locks the component connecting rod 6 to prevent the door from closing accidentally. The square block 12 on the inner wall of the housing 11 can rotate in the circular groove 16. When the component connecting rod 6 deflects to a certain angle, the elastic element 13 at one end of the square block 12 pushes the square block 12 and the square hole 17 to form a locking structure, thereby locking the angle of the component connecting rod 6. When it is necessary to close the door, the pull rod 14 is pulled outward to disengage the square block 12 from the square hole 17, thereby deflecting the angle of the component connecting rod 6 to close the door. The turntable 5, component connecting rod 6, fixing rod 8 and connecting frame 9 can enable the opening and closing of the door of various electrical boxes, enhancing its applicability.
[0029] The first motor 18 of the height adjustment component 2 is fixedly connected to the bottom wall of the housing 1. The output end of the first motor 18 is fixedly connected to a first gear 19 via a coupling. A second gear 20 meshes with the side of the first gear 19. A support rod 25 is fixedly connected to the bottom of the second gear 20, and a threaded rod 21 is fixedly connected to the top of the second gear 20. The side of the threaded rod 21 forms a threaded connection structure with the inner wall of the column 3. A fixed column 22 is fixedly connected to the center of the top of the housing 1. A limit block 23 is fixedly connected to one end of the fixed column 22. A limit groove 24 is formed at the bottom of the column 3. The side of the limit block 23 fits against the inner side of the limit groove 24, and the limit block 23 and the limit groove 24 form a sliding connection structure. There are two second gears 20, which are symmetrically distributed on the side of the first gear 19, and the two second gears 20 rotate in the same direction. The above structure uses an external fixing device to fix the housing 1 in the designated position of the electrical box. The height adjustment component 2 allows the column 3 to be adjusted in height. The first motor 18 drives the first gear 19 to rotate, and the first gear 19 meshes with two second gears 20 respectively, thereby driving the threaded rod 21 to rotate. At the same time, the support rod 25 at the bottom of the second gear 20 provides auxiliary support for the second gear 20. The threaded rod 21 forms a threaded connection with the inner wall of the column 3, and the threaded rod 21 drives the column 3 to rise and fall. During the rising and falling of the column 3, the fixed column 22 provides auxiliary support for the column 3. The limiting block 23 at one end of the fixed column 22 slides in the limiting groove 24 to prevent the fixed column 22 from slipping out of the limiting groove 24. After the height is adjusted, it is connected to the door cover through the connecting block 10.
[0030] The connecting block 10 has four screw holes on its surface. Bolts passing through these screw holes are used to fix the connecting block 10 to the door cover. With this structure, the bolts reliably fix the connecting block 10 to the door cover, thereby achieving reliable control of the door cover when the connecting block 10 moves the door cover.
[0031] The marine electrical box door opening and closing limit device of this utility model includes a height adjustment component 2 inside the box body 1, and a column 3 at the top of the box body 1. The height adjustment component 2 is movably connected to the column 3. When the height adjustment component 2 is activated, it can drive the column 3 to rise and fall relative to the box body 1. A fixing plate 4 is connected to the top of the column 3, and a turntable 5 is rotatably connected to the top of the fixing plate 4 via a rotating shaft. A component connecting rod 6 is installed above the turntable 5. When the column 3 rises and falls relative to the box body 1, the component connecting rod 6 can drive the connecting block to open the door. A self-locking component 7 is provided at one end of the component connecting rod 6, and a fixing rod 8 is movably connected to the other end of the component connecting rod 6. A connecting frame 9 is rotatably connected to both ends of the fixing rod 8, and a connecting block 10 is fixedly connected to one side of the connecting frame 9. After the door is opened to the correct angle, the self-locking component can fix the position of the component connecting rod 6 to prevent the door from closing accidentally. The beneficial effects of this utility model's structure are as follows: 1. The height adjustment component 2 allows for flexible adjustment of the electrical box's door height according to different ship designs and usage requirements, adapting to various scenarios. It can be quickly adjusted according to specific needs, saving time and effectively improving work efficiency. Simultaneously, it is applicable to electrical boxes of different models and specifications, enhancing the product's market competitiveness. Adjusting the height as needed effectively utilizes space and reduces the area occupied by the equipment on the ship. 2. The self-locking component automatically locks the door when it is opened, preventing accidental closure and ensuring operator safety. Opening and locking are simple operations, reducing cumbersome manual steps and improving ease of use. It ensures the door remains fixed in the open state and will not move due to external factors, reducing reliance on operators; single-person operation is safer and more efficient.
[0032] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A limit device for opening and closing a marine electrical box door, characterized in that: The box (1) is equipped with a height adjustment component (2), and a column (3) is provided at the top of the box (1). The height adjustment component (2) is movably connected to the column (3). A fixing plate (4) is connected to the top of the column (3). The top of the fixing plate (4) is rotatably connected to the turntable (5) via a rotating shaft. A component connecting rod (6) is installed above the turntable (5). A self-locking component (7) is provided at one end of the component connecting rod (6). A fixing rod (8) is movably connected to the other end of the component connecting rod (6). A connecting frame (9) is rotatably connected to both ends of the fixing rod (8). A connecting block (10) is fixedly connected to one side of the connecting frame (9).
2. The ship electrical box door opening and closing limit device according to claim 1, characterized in that: The enclosure (1) is connected to the electrical box, and the connecting block (10) is connected to the door cover.
3. The ship electrical box door opening and closing limit device according to claim 1 or 2, characterized in that: The self-locking component (7) includes a housing (11), which is fixedly connected to one side of the component connecting rod (6). A square block (12) is movably connected to the inside of the housing (11). An elastic element (13) is fixedly connected to one end of the square block (12). A pull rod (14) is fixedly connected to the center of one end of the square block (12). A circular groove (16) is provided at one end of the component connecting rod (6).
4. The marine electrical box door opening and closing limit device according to claim 3, characterized in that: The inner wall of the housing (11) is provided with a square groove (15), the side of the square block (12) is in contact with the inner side of the square groove (15), and the square block (12) and the square groove (15) form a sliding connection structure.
5. The marine electrical box door opening and closing limit device according to claim 4, characterized in that: The circular groove (16) has a square hole (17) on its inner side. The side of the square block (12) and the circular groove (16) form a rotating connection structure. The cross-sectional shape of the square block (12) is the same as the cross-sectional shape of the square hole (17). The square block (12) forms a limiting structure for the component connecting rod (6) through the square hole (17).
6. The ship electrical box door opening and closing limit device according to claim 1 or 2, characterized in that: The first motor (18) of the height adjustment component (2) is fixedly connected to the bottom wall of the housing (1). The output end of the first motor (18) is fixedly connected to the first gear (19) through a coupling. The side of the first gear (19) is meshed with the second gear (20).
7. The marine electrical box door opening and closing limit device according to claim 6, characterized in that: The second gear (20) is fixedly connected to a support rod (25) at its bottom end and to a threaded rod (21) at its top end. The side of the threaded rod (21) and the inner wall of the column (3) form a threaded connection structure. A fixed column (22) is fixedly connected to the center above the box (1). One end of the fixed column (22) is fixedly connected to a limit block (23).
8. The marine electrical box door opening and closing limit device according to claim 7, characterized in that: The bottom end of the column (3) is provided with a limiting groove (24), the side of the limiting block (23) is in contact with the inner side of the limiting groove (24), and the limiting block (23) and the limiting groove (24) form a sliding connection structure.
9. The marine electrical box door opening and closing limit device according to claim 8, characterized in that: The second gear (20) includes two gears, which are symmetrically distributed on the side of the first gear (19) and rotate in the same direction.
10. The ship electrical box door opening and closing limit device according to claim 2, characterized in that: The connecting block (10) has four screw holes on its surface, and the connecting block (10) is fixedly connected to the door cover by bolts passing through the screw holes.