An easy-to-maintain electrical cabinet

Abstract

This utility model discloses an easy-to-maintain electrical cabinet, relating to the field of electrical technology. It includes a cabinet body with two equipment racks slidably connected in the same direction inside. Each side of the cabinet has a switch door corresponding to one of the two equipment racks. An access door is located between the two switch doors. A linkage mechanism is installed inside the cabinet to adjust the distance between the two equipment racks when the access door is opened or closed. The two equipment racks, slidably connected in the same direction inside the cabinet, are linked to the access door by the linkage mechanism. When the access door is opened, the linkage mechanism drives the two equipment racks away from each other, separating the originally centrally located electrical components and significantly expanding the maintenance space inside the cabinet. Maintenance personnel no longer need to operate in a confined space, reducing operational difficulty and the risk of misoperation due to space constraints.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, specifically to an electrical cabinet that is easy to maintain. Background Technology

[0002] In industrial production and power systems, electrical cabinets, as core equipment that carries electrical components and realizes circuit control and protection, are directly related to the safety and reliability of the entire system through their stable operation and convenient maintenance. Traditional electrical cabinets typically employ a fixed installation structure, with electrical components mostly concentrated on mounting racks inside the cabinet.

[0003] This structure has revealed many problems in actual maintenance: On the one hand, due to the limited internal space of the cabinet and the fixed position of the mounting bracket, the operating space of maintenance personnel is severely restricted when it is necessary to repair, replace or debug the internal electrical components. Especially for components in the middle or deep part of the cabinet, it is often necessary to curl up or use special tools to reach them, which not only increases the difficulty of maintenance, but also easily causes safety hazards due to improper operation.

[0004] On the other hand, traditional electrical cabinets mostly adopt a single-door or double-door design. After opening the door, only a part of one or both sides of the cabinet can be exposed. For components located in the middle of the cabinet, there are still blind spots in the field of vision, making it difficult to quickly and accurately determine the fault point, resulting in low maintenance efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide an electrical cabinet that is easy to maintain in order to solve the above problems, as detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This utility model provides an easy-to-maintain electrical cabinet, including a cabinet body, two equipment racks slidably connected in the same direction inside the cabinet body, and two switch doors corresponding to the two equipment racks on both sides of the cabinet body. An inspection door is provided between the two switch doors in the cabinet body. A linkage mechanism is provided inside the cabinet body to adjust the distance between the two equipment racks when the inspection door is opened and closed. When the inspection door is opened, the linkage mechanism can drive the two equipment racks to move away from each other.

[0008] The aforementioned easy-to-maintain electrical cabinet is used. The electrical equipment is installed on the equipment rack. During installation and maintenance, first open the two switch doors, then open the maintenance door. The opening of the maintenance door, in conjunction with the linkage mechanism, can move the two equipment racks away from each other, thereby obtaining a larger construction space.

[0009] Preferably, a sliding component is fixedly connected inside the cabinet, and the equipment rack is slidably connected to the cabinet through the sliding component.

[0010] Preferably, the sliding assembly includes four guide rods 2 distributed at the four corners inside the cabinet. The two ends of the guide rods 2 are fixedly connected to the cabinet. Two guide sleeves are slidably connected to the guide rods 2. The equipment frame is fixedly connected to the corresponding guide sleeves.

[0011] Preferably, the equipment rack includes two upright plates, and several mounting plates are horizontally fixedly connected between the two upright plates.

[0012] Preferably, the linkage mechanism includes a guide rod fixedly connected to the cabinet body, a sliding sleeve slidably connected to the surface of the guide rod, a fixing ring fixedly connected to the sliding sleeve, an arc-shaped rod fixedly connected to the inspection door, and the arc-shaped rod passing through the fixing ring. Two connecting rods are hinged to the sliding sleeve, and the other ends of the two connecting rods are respectively hinged to two equipment racks.

[0013] Preferably, both the guide rod and the sliding sleeve are rectangular.

[0014] Preferably, the length direction of the guide rod is perpendicular to the moving direction of the equipment frame.

[0015] Preferably, the two connecting rods have an isosceles symmetrical structure.

[0016] Preferably, the arc-shaped rod is fitted with a clearance fit to the fixing ring.

[0017] Preferably, the guide sleeve is a sliding bearing.

[0018] The beneficial effects are:

[0019] 1. Two equipment racks inside the cabinet slide in the same direction, forming a linkage mechanism with the access door. When the access door is opened, the linkage mechanism drives the two equipment racks away from each other, separating the originally centrally located electrical components and significantly expanding the internal maintenance space of the cabinet. Maintenance personnel no longer need to operate in a confined space, reducing the difficulty of operation and minimizing the risk of misoperation due to space constraints.

[0020] 2. The cabinet features sliding doors on both sides corresponding to the equipment racks, which, combined with the central access door, allow for full exposure of the electrical components on the equipment racks, eliminating blind spots common in traditional cabinets. Simultaneously, the sliding separation of the equipment racks increases the spacing between components, facilitating quick observation, testing, and replacement by maintenance personnel, significantly reducing maintenance time and improving efficiency.

[0021] 3. The two connecting rods in the linkage mechanism are isosceles symmetrical, which ensures that the two equipment frames are subjected to even force when the drive equipment frame moves, avoiding structural deformation caused by excessive force on one side. The clearance fit between the arc-shaped rod and the fixed ring ensures smooth transmission of the linkage mechanism during the opening of the maintenance door, reduces mechanical wear, and extends the service life of the equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a front view structural diagram of the present invention;

[0025] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0026] Figure 4 This is a three-dimensional structural diagram of the linkage mechanism of this utility model;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the equipment frame of this utility model.

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Cabinet; 2. Opening and closing door; 3. Inspection door; 4. Equipment rack; 5. Linkage mechanism; 6. Guide rod one; 7. Sliding sleeve; 8. Fixing ring; 9. Arc rod; 10. Connecting rod; 11. Vertical plate; 12. Mounting plate; 13. Sliding assembly; 14. Guide rod two; 15. Guide sleeve. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] See Figures 1-5As shown, this utility model provides an easy-to-maintain electrical cabinet, including a cabinet body 1. The cabinet body 1 is welded from high-strength cold-rolled steel plate, and has an overall rectangular structure. The surface is treated with pickling, phosphating, and electrostatic spraying, giving it good rust and corrosion resistance, and making it suitable for various complex environments such as industrial workshops and power distribution rooms. Adjustable height support feet are provided at the four corners of the bottom of the cabinet body 1 to balance installation errors caused by uneven ground, and to prevent bottom corrosion caused by direct contact between the cabinet body and the ground. Ventilation louvers are provided at the top of the cabinet body 1, which, together with an internal cooling fan, can form an air convection channel, effectively reducing the temperature of electrical components during operation and ensuring stable equipment operation. Two equipment racks 4 are slidably connected inside the cabinet body 1 in the same direction. Each side of the cabinet body 1 has a switch door 2 corresponding to one of the two equipment racks 4. The switch doors 2 are connected to the cabinet body 1 by hinges made of stainless steel to improve durability. Sealing strips are provided on the inner edge of the switch doors 2, providing a dustproof and waterproof seal when closed. Each switch door 2 is equipped with a mechanical lock, which comes with two keys for easy access control by management personnel to prevent unauthorized personnel from opening it. The maintenance door 3 is located in the center of the front of the cabinet 1, and is slightly smaller than the switch doors 2. It is also connected to the cabinet 1 by a hinge, and the hinge shaft adopts a damping design, so that the maintenance door 3 can rotate slowly during opening to avoid collision damage caused by rapid opening due to gravity. The maintenance door 3 is located between the two switch doors 2 in the cabinet 1. The cabinet 1 is equipped with a linkage mechanism 5, which is used to adjust the distance between the two equipment racks 4 when the maintenance door 3 is opened. When the maintenance door 3 is opened, the linkage mechanism 5 can drive the two equipment racks 4 to move away from each other.

[0032] As an optional implementation, a sliding component 13 is fixedly connected inside the cabinet 1, and the equipment rack 4 is slidably connected to the cabinet 1 through the sliding component 13.

[0033] The sliding assembly 13 includes four guide rods 14 distributed at the four corners inside the cabinet 1. The two ends of the guide rods 14 are fixedly connected to the cabinet 1. Two guide sleeves 15 are slidably connected to the guide rods 14. The equipment rack 4 is fixedly connected to the corresponding guide sleeves 15.

[0034] The equipment frame 4 includes two upright plates 11, with several mounting plates 12 horizontally fixedly connected between them. The upright plates 11 are made of 5mm thick steel plate, bent into shape. Several oblong mounting holes are evenly distributed on the surface of each upright plate 11, with a spacing of 25mm, allowing for flexible adjustment of the mounting plate 12's position according to the dimensions of the electrical components. The mounting plates 12 are made of 3mm thick insulating epoxy board, with a smooth and flat surface, possessing good insulation performance and mechanical strength, effectively preventing short circuits between electrical components. The mounting plates 12 are fixedly connected to the upright plates 11 by bolts, with anti-loosening washers installed at the bolt connections to prevent loosening due to vibration during equipment operation.

[0035] The linkage mechanism 5 includes a guide rod 6 fixedly connected inside the cabinet 1, a sliding sleeve 7 slidably connected to the surface of the guide rod 6, a fixing ring 8 fixedly connected to the sliding sleeve 7, an arc-shaped rod 9 fixedly connected to the inspection door 3, and the arc-shaped rod 9 passes through the fixing ring 8. Two connecting rods 10 are hinged to the sliding sleeve 7, and the other ends of the two connecting rods 10 are respectively hinged to two equipment racks 4.

[0036] When the access door 3 is opened, it rotates around the hinge axis, and the arc-shaped rod 9 fixed inside the access door 3 moves synchronously with it. Since the arc-shaped rod 9 passes through the fixing ring 8, its trajectory is an arc centered on the hinge axis. During this process, the arc-shaped rod 9 applies a horizontal thrust to the sliding sleeve 7 through the fixing ring 8, causing the sliding sleeve 7 to slide outwards along the guide rod 16. As the sliding sleeve 7 slides, it drives the equipment rack 4 to move through the two connecting rods 10 hinged to it. Because the two connecting rods 10 have an isosceles symmetrical structure and are hinged to the two equipment racks 4 respectively, the linear motion of the sliding sleeve 7 is converted into the two equipment racks 4 moving in opposite directions along the guide rod 24, ultimately causing the two equipment racks 4 to move away from each other. When the access door 3 is closed, the arc-shaped rod 9 pulls the fixing ring 8 in the opposite direction, causing the sliding sleeve 7 to slide inwards along the guide rod 16, and through the connecting rods 10, causing the two equipment racks 4 to move closer together and reset.

[0037] Both the guide rod 6 and the sliding sleeve 7 are rectangular.

[0038] The length of guide rod 6 is perpendicular to the moving direction of equipment frame 4.

[0039] The two connecting rods 10 have an isosceles symmetrical structure.

[0040] The arc-shaped rod 9 and the fixed ring 8 are fitted with a clearance.

[0041] Guide sleeve 15 is a sliding bearing.

[0042] With the above structure, the electrical equipment is installed on the equipment rack 4. During installation and maintenance, the two switch doors 2 are opened first, and then the maintenance door 3 is opened. When the maintenance door 3 is opened, it works in conjunction with the linkage mechanism 5 to move the two equipment racks 4 away from each other, thereby obtaining a larger construction space.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model 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 utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An electrical cabinet that is easily accessible, characterized in that: The cabinet includes a cabinet (1), inside which two equipment racks (4) are slidably connected in the same direction. Each side of the cabinet (1) is provided with a switch door (2) corresponding to the two equipment racks (4). An inspection door (3) is provided between the two switch doors (2) in the cabinet (1). A linkage mechanism (5) is provided inside the cabinet (1) to adjust the distance between the two equipment racks (4) when the inspection door (3) is opened. When the inspection door (3) is opened, the linkage mechanism (5) can drive the two equipment racks (4) to move away from each other.

2. The easily maintainable electrical cabinet according to claim 1, characterized in that: A sliding assembly (13) is fixedly connected inside the cabinet (1), and the equipment rack (4) is slidably connected to the cabinet (1) through the sliding assembly (13).

3. The easily maintainable electrical cabinet according to claim 2, characterized in that: The sliding assembly (13) includes four guide rods (14) distributed at the four corners inside the cabinet (1). The two ends of the guide rods (14) are fixedly connected to the cabinet (1). Two guide sleeves (15) are slidably connected to the guide rods (14). The equipment rack (4) is fixedly connected to the corresponding guide sleeves (15).

4. The easily maintainable electrical cabinet according to claim 3, characterized in that: The equipment rack (4) includes two upright plates (11), and several mounting plates (12) are horizontally fixedly connected between the two upright plates (11).

5. The easily maintainable electrical cabinet according to claim 1, characterized in that: The linkage mechanism (5) includes a guide rod (6) fixedly connected inside the cabinet (1), a sliding sleeve (7) slidably connected to the surface of the guide rod (6), a fixing ring (8) fixedly connected to the sliding sleeve (7), an arc rod (9) fixedly connected to the inspection door (3), and the arc rod (9) passes through the fixing ring (8). Two connecting rods (10) are hinged to the sliding sleeve (7), and the other ends of the two connecting rods (10) are respectively hinged to two equipment racks (4).

6. The easily maintainable electrical cabinet according to claim 5, characterized in that: Both the guide rod (6) and the sliding sleeve (7) are rectangular.

7. The easily maintainable electrical cabinet according to claim 6, characterized in that: The length direction of the guide rod (6) is perpendicular to the moving direction of the equipment frame (4).

8. The easily maintainable electrical cabinet according to claim 6, characterized in that: The two connecting rods (10) are isosceles symmetrical.

9. The easily maintainable electrical cabinet according to claim 6, characterized in that: The arc-shaped rod (9) is fitted with the fixed ring (8) with a clearance.

10. The easily maintainable electrical cabinet according to claim 3, characterized in that: The guide sleeve (15) is a sliding bearing.

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