Distribution box for electrical engineering

Abstract

The utility model discloses a distribution box for electrical engineering, and relates to the technical field of distribution boxes, the distribution box comprises a casing, a wiring hole and heat dissipation holes, the side surface of the casing is hinged with a folding door through a hinge, the folding door comprises a rotating rod, the two ends of the rotating rod are rotatably connected with the casing through ball bearings; the first door body is welded and fixed on the surface of the rotating rod, and a fixed block, a first hinge and a second hinge are fixed on the edge of the first door body through bolts and are respectively in bolt connection with the top and the side surface of the fixed block; the rotating shaft penetrates through the limiting rings of the first hinge and the second hinge; and the second door body is rotationally connected with the rotating shaft through a third hinge, and when the rotating rod rotates, the second door body is driven by the rotating shaft to be synchronously unfolded or folded. According to the utility model, by opening and closing the folding door, the space in the power distribution box is exposed, and meanwhile, the opened and closed folding door does not occupy too much space, so that more use space is provided in a narrow power distribution room, and the maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the field of distribution box technology, specifically a distribution box for electrical engineering. Background Technology

[0002] A distribution box is a box in a power system used to centrally install switching equipment, measuring instruments, protective electrical appliances and auxiliary equipment. Its core functions include power distribution, circuit protection and power control.

[0003] The single-door design occupies a large opening space, making it inconvenient to operate in a small power distribution room. Fixed cable trays cannot accommodate different wire diameters (such as scenarios where power cables and signal cables coexist).

[0004] An existing patent (authorization announcement number: CN222691184U) discloses a distribution box for electrical engineering. Its key technical feature is that the three side walls of the distribution box are filled with water or coolant. When the outdoor temperature is too high, the water or coolant has a larger specific heat capacity than metal, which allows it to absorb a large amount of heat. This prevents the temperature of the outer wall of the distribution box from rising due to sunlight, and thus prevents the internal temperature of the distribution box from rising due to the influence of the side walls. This ensures that the internal temperature of the distribution box is suitable for the normal operation of electrical equipment.

[0005] However, the above technical solutions still have certain drawbacks. In the small power distribution room, the amount of direct sunlight is limited. Furthermore, when repairing and inspecting the wires inside the power distribution box, it is inconvenient to open the single door, which is easy to bump into other parts. In addition, the wiring of the cables cannot be conveniently configured. Therefore, a power distribution box for electrical engineering is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a distribution box for electrical engineering to solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An electrical distribution box for electrical engineering includes a housing, wiring holes, and heat dissipation holes.

[0009] A folding door is hinged to the side of the casing, and the folding door includes:

[0010] The rotating rod is rotatably connected to the housing at both ends by ball bearings; the first door body is welded and fixed to the surface of the rotating rod, and its edge is fixed with a fixing block by bolts.

[0011] The first hinge and the second hinge are bolted to the top and side of the fixed block, respectively;

[0012] A rotating shaft passes through a limiting ring that connects the first and second hinges;

[0013] The second door is rotatably connected to the rotating shaft via a third hinge.

[0014] When the rotating rod rotates, it drives the second door to open or fold synchronously via the rotating shaft.

[0015] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0016] As a further embodiment of this utility model: the second door body is composed of a push plate and a guide member fixed to the top of the push plate, and the guide member slides in the slide rail. The guide member is a cylindrical slider with a gap of 0.5-1mm between it and the slide rail. The slide rail is fixedly connected to the housing, and a cable tray is also provided on one side of the housing.

[0017] As a further improvement of this utility model: the cable tray includes an inner plate, which is connected to an outer plate via a pivot; positioning holes, with small holes and large holes correspondingly opened on the inner plate and the outer plate, and the large holes completely covering the small holes to form a cable anti-detachment structure.

[0018] As a further improvement of this utility model, the positioning hole can be fitted with a corresponding positioning component.

[0019] As a further improvement of this utility model: the second hinge extension is provided with a limiting ring, and the third hinge extension is provided with two positioning rings.

[0020] As a further improvement of this utility model, the rotating rod is rotatably connected to one side of the housing.

[0021] As a further improvement of this utility model: the large hole is square, and the large hole completely covers the small hole.

[0022] As a further improvement of this utility model: a magnetic mounting base is pre-embedded on the back of the housing, and the magnetic mounting base is a neodymium iron boron permanent magnet.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1. This utility model exposes the space inside the distribution box by opening and closing a folding door. At the same time, the opening and closing folding door does not take up too much space, providing more usable space in a small power distribution room and facilitating maintenance.

[0025] 2. This utility model rotates the outer plate to place the large and small holes in a staggered manner, and inserts positioning parts into the positioning holes to prevent the inner and outer plates from rotating relative to each other, which can reduce the entry of dust during transportation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 This is a structural schematic diagram of the folding door of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of this utility model;

[0030] Figure 5 For the present utility model Figure 4 Enlarged view of point B in the middle.

[0031] Attached image labels: 1. Housing; 2. Cable routing hole; 3. Ventilation hole; 4. Folding door; 5. Cable tray;

[0032] 41. Rotating rod; 42. First door body; 43. Fixing block; 44. First hinge; 45. Second hinge; 46. Rotating shaft; 47. Second door body; 48. Third hinge;

[0033] 471. Push plate; 472. Guide component; 473. Slide rail;

[0034] 51. Inner plate; 52. Outer plate; 53. Positioning hole. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] In one embodiment, such as Figures 1-5 As shown, an electrical engineering distribution box includes a housing 1, a wiring hole 2 and a heat dissipation hole 3, and a folding door 4 is hinged to the side of the housing 1.

[0037] In this embodiment, by opening and closing the folding door 4, the space inside the distribution box is exposed. At the same time, the opening and closing folding door 4 does not take up too much space, providing more usable space in the small distribution room and facilitating maintenance. Meanwhile, a wiring hole 2 is provided on the top of the casing 1, which can be used to run the wires from the top of the casing 1, saving wiring space. A fan can be built into the heat dissipation hole 3 to enhance the heat dissipation effect.

[0038] In one embodiment, such as Figure 3As shown, the folding door 4 includes: a rotating rod 41, whose two ends are rotatably connected to the housing 1 via ball bearings; a first door body 42, welded and fixed to the surface of the rotating rod 41, with a fixing block 43 bolted to its edge; a first hinge 44 and a second hinge 45, respectively bolted to the top and side of the fixing block 43; a rotating shaft 46, passing through the limiting rings of the first hinge 44 and the second hinge 45; and a second door body 47, rotatably connected to the rotating shaft 46 via a third hinge 48; wherein, when the rotating rod 41 rotates, the second door body 47 is synchronously unfolded or folded via the rotating shaft 46; the first hinge... The limiting ring of the chain 44 and the second hinge 45 forms a sliding fit with the rotating shaft 46, with a fit gap of 0.05mm-0.1mm, ensuring that the rotating shaft 46 can rotate freely while avoiding radial movement. When the rotating rod 41 is rotated by an external force, it drives the first door body 42 to rotate. The first hinge 44 on the fixed block 43 pushes the rotating shaft 46, and the rotating shaft 46 drives the second door body 47 to move synchronously through the third hinge 48. During the rotation of the rotating rod 41 from 0 to 90°, the second door body 47 always maintains a parallel distance with the first door body 42. This distance is determined by the axial length of the limiting ring to prevent the two door bodies from colliding.

[0039] In one embodiment, such as Figure 5 As shown, the second door body 47 consists of a push plate 471 and a guide member 472 fixed to the top of the push plate 471. The guide member 472 slides within a slide rail 473. The guide member 472 is a cylindrical slider with a gap of 0.5-1mm between it and the slide rail 473. The slide rail 473 is fixedly connected to the housing 1. A cable tray 5 is also provided on one side of the housing 1. By pushing the push plate 471, the guide member 472 at the top of the push plate 471 slides along the slide rail 473. At the same time, the push plate 471 and the first door body 42 both rotate along the rotation axis 46. The push plate 471 and the first door body 42 rotate relative to each other. When the folding door 4 is opened, the space required for unfolding is only half that of a normal door body, increasing the space utilization rate and facilitating opening, closing, and maintenance.

[0040] In one embodiment, such as Figure 3 As shown, the extension of the second hinge 45 is provided with a limiting ring, and the extension of the third hinge 48 is provided with two positioning rings. The rotating rod 41 is rotatably connected to one side of the housing 1. By setting two positioning rings, lateral swaying is prevented when the door is opened and closed. At the same time, the first door 42 rotates along the rotating rod 41, and can rotate up to 90°.

[0041] In one embodiment, such as Figure 2As shown, the cable tray 5 includes an inner plate 51 connected to an outer plate 52 via a pivot; positioning holes 53, with small and large holes correspondingly opened on the inner plate 51 and the outer plate 52, and the large hole completely covering the small hole to form a cable anti-detachment structure. The positioning holes 53 can be fitted with corresponding positioning components. When cable routing is required, the outer plate 52 is rotated so that the large hole on the outer plate 52 coincides with the small hole on the inner plate 51. At this time, the cable is dragged into the hole where the large and small holes coincide to fix and install the cable. Furthermore, during transportation, the outer plate 52 is rotated to misalign the large and small holes, and positioning components are inserted into the positioning holes 53 to prevent the inner plate 51 and the outer plate 52 from rotating relative to each other. This reduces the entry of dust during transportation and makes the bottom of the distribution box a whole, facilitating transportation and installation.

[0042] In one embodiment, such as Figure 2 As shown, the large hole is square and completely covers the small hole to ensure that each cable can pass through the overlap between the small hole and the large hole.

[0043] In one embodiment, such as Figure 1 As shown, a magnetic mounting base is pre-embedded on the back of the housing 11. The magnetic mounting base is a neodymium iron boron permanent magnet. The magnetic induction intensity of the neodymium iron boron magnet surface can reach 12,000-15,000 Gauss. It can be directly adsorbed onto the steel bracket or wall by magnetic attraction, making installation convenient and quick.

[0044] The above embodiment discloses a distribution box for electrical engineering. By opening and closing the folding door 4, the space inside the distribution box is exposed. At the same time, the opening and closing folding door 4 does not occupy too much space, providing more usable space in a small distribution room. By pushing the push plate 471, the guide member 472 at the top of the push plate 471 slides along the slide rail 473. At the same time, the push plate 471 and the first door body 42 both rotate along the rotation axis 46. When the folding door 4 is opened, the space required for unfolding is only half that of a normal door body. At the same time, when wiring is required, by rotating the outer plate 52, the large hole on the outer plate 52 coincides with the small hole on the inner plate 51. At this time, the cable is dragged into the hole where the large hole and the small hole coincide, and the cable is fixed and installed.

[0045] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A distribution box for electrical engineering, comprising a housing (1), wiring holes (2), and heat dissipation holes (3), characterized in that: The casing (1) has a folding door (4) hinged to its side via a hinge, the folding door (4) comprising: The rotating rod (41) is rotatably connected to the housing (1) at both ends by ball bearings; the first door body (42) is welded and fixed to the surface of the rotating rod (41), and its edge is fixed with a fixing block (43) by bolts; The first hinge (44) and the second hinge (45) are bolted to the top and side of the fixing block (43), respectively; A rotating shaft (46) passes through a limiting ring of the first hinge (44) and the second hinge (45); The second door (47) is rotatably connected to the rotating shaft (46) via the third hinge (48); When the rotating rod (41) rotates, it drives the second door (47) to unfold or fold synchronously through the rotating shaft (46).

2. The electrical engineering distribution box according to claim 1, characterized in that, The second door body (47) consists of a push plate (471) and a guide (472) fixed on the top of the push plate (471). The guide (472) slides in the slide rail (473). The guide (472) is a cylindrical slider with a gap of 0.5-1mm between it and the slide rail (473). The slide rail (473) is fixedly connected to the housing (1). A cable tray (5) is also provided on one side of the housing (1).

3. The electrical engineering distribution box according to claim 2, characterized in that, The cable tray (5) includes an inner plate (51) connected to an outer plate (52) via a pivot; positioning holes (53) are provided on the inner plate (51) and the outer plate (52) respectively, with small holes and large holes being provided, and the large holes completely covering the small holes to form a cable anti-detachment structure.

4. A distribution box for electrical engineering according to claim 3, characterized in that, The positioning hole (53) can be fitted with a corresponding positioning component.

5. A distribution box for electrical engineering according to claim 1, characterized in that, The extension of the second hinge (45) is provided with a limiting ring, and the extension of the third hinge (48) is provided with two positioning rings.

6. A distribution box for electrical engineering according to claim 1, characterized in that, The rotating rod (41) is rotatably connected to one side of the housing (1).

7. A distribution box for electrical engineering according to claim 3, characterized in that, The large hole is square and completely covers the small hole.

8. A distribution box for electrical engineering according to claim 1, characterized in that, The back of the housing (1) has a pre-embedded magnetic mounting base, which is a neodymium iron boron permanent magnet.

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