A switchgear with interlocking device

Abstract

The utility model belongs to the technical field of switch cabinet, especially a switch cabinet with interlocking device, including switch cabinet main part, the front fixed mounting of switch cabinet main part has hinged joint, the switch cabinet main part is rotated and is connected with the opening and closing door one and the opening and closing door two with hinged joint, the surface of opening and closing door two is equipped with through -hole, the inner wall department of through -hole installs interlocking piece, the interlocking piece includes mounting disc and lock cylinder main part, the lock cylinder main part fixed mounting is at the center department of mounting disc, the utility model discloses a limit mechanism is provided on interlocking piece, has realized the quick installation and detachment of interlocking piece and opening and closing door two. When installing, only need to insert mounting disc into through -hole, and limit insertion rod is under the action of reset assembly automatic ejection, and is pasted with opening and closing door one back, and the annular plate is pasted with opening and closing door two front, can complete the steady installation of interlocking piece, when disassembling, press limit insertion rod to make it retract, can easily take out mounting disc.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet technology, and in particular to a switch cabinet with an interlocking device. Background Technology

[0002] In power systems, switchgear, as crucial electrical equipment, undertakes the key tasks of controlling, protecting, and distributing electrical energy. It is widely used in all aspects of power generation, transmission, distribution, and consumption, and its performance and reliability directly affect the stable operation of the entire power system. For example, in substations, switchgear is used to control and switch circuits of different voltage levels, ensuring the rational distribution and safe transmission of electrical energy; in industrial production, switchgear provides power supply and protection for various production equipment, ensuring the continuity and stability of the production process. Therefore, the safety and reliability of switchgear are essential for the normal operation of the power system.

[0003] Currently, existing switchgear on the market has many shortcomings in the design and installation of interlocking devices, leading to difficulties in disassembly and assembly during maintenance. Traditional switchgear interlocking devices typically employ complex mechanical structures or numerous bolts for fixing. During installation, operators need to spend considerable time and effort precisely aligning and tightening these bolts, increasing installation difficulty and increasing the risk of installation errors that can affect the normal function of the interlocking device. Disassembly is equally cumbersome when it comes to inspecting or replacing electrical components within the switchgear or maintaining the interlocking device itself. Operators need to loosen multiple bolts one by one, and some bolts may be located in the narrow spaces inside the switchgear, making operation extremely inconvenient. This not only prolongs equipment downtime and reduces maintenance efficiency but also increases labor and maintenance costs. For example, in a large power company's substation, due to the inconvenience of disassembly and assembly of traditional switchgear, each maintenance operation takes an average of several hours or even longer, severely impacting the reliability of power supply.

[0004] Besides the inconvenience of disassembly and assembly, the interlocking function of traditional switchgear also suffers from insufficient reliability. Some traditional switchgear interlocking devices are simply designed and lack effective interlocking mechanisms, failing to prevent the opening of another door if the first door is not properly closed. In actual operation, operators may, due to negligence or misoperation, attempt to open another door without closing one, exposing electrical components inside the switchgear and increasing the risk of electric shock, short circuits, and other safety accidents. For example, in high-voltage switchgear, if an operator opens a rear door without closing the front door, they may come into contact with live parts, causing a serious electric shock and threatening their life. Furthermore, unreliable interlocking functions can also affect the normal operation of electrical components inside the switchgear, potentially leading to equipment damage, increased maintenance costs, and power outage time. Therefore, we provide a switchgear with an interlocking device. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a switch cabinet with an interlocking device, which more precisely solves the problems mentioned in the background art.

[0006] This utility model is achieved through the following technical solution:

[0007] The utility model proposes a switch cabinet with an interlocking device, including a switch cabinet body. A hinge is fixedly installed on the front of the switch cabinet body. The switch cabinet body is rotatably connected to an opening door one and an opening door two via the hinge. A through hole is opened on the surface of the opening door two, and an interlocking component is installed on the inner wall of the through hole.

[0008] The interlocking component includes a mounting plate and a lock cylinder body, wherein the lock cylinder body is fixedly installed at the center of the mounting plate;

[0009] An L-shaped plate is fixedly installed on the back of the opening and closing door one, and a control button is fixedly installed on the inner wall of the L-shaped plate for controlling the opening and closing of the electrical components inside the switch cabinet body.

[0010] The interlocking component is equipped with a limiting mechanism to enable installation and removal from the second opening and closing door.

[0011] Furthermore, the limiting mechanism includes a rectangular groove formed on the surface of the mounting plate and an annular plate fixedly installed around the periphery of the mounting plate. A limiting rod is inserted into the end wall of the rectangular groove, and a reset component is connected between the rectangular groove and the limiting rod.

[0012] Furthermore, the reset assembly includes a partition plate fixedly installed on the inner sidewall of a rectangular groove and a plug-in circular groove formed at the end of a limiting plug rod. The surface of the rectangular groove is fixedly connected to the plug rod, and the inner bottom wall of the plug-in circular groove is fixedly connected to a spring.

[0013] Furthermore, the end of the plug rod is inserted into the inner wall of the plug groove, and the end is fixedly connected to one end of the spring. The inner diameter of the plug groove is adapted to the outer diameter of the plug rod.

[0014] Furthermore, the mounting plate is inserted into the inner wall of the through hole, and the annular plate is in close contact with the front of the opening and closing door, while the surface of the limiting rod is in close contact with the back of the opening and closing door.

[0015] The beneficial effects of this utility model are:

[0016] This invention achieves rapid installation and disassembly of the interlocking component and the second opening / closing door by setting a limiting mechanism on the interlocking component. During installation, simply insert the mounting plate into the through hole; the limiting rod automatically pops out under the action of the reset component, fitting against the back of the first opening / closing door, while the annular plate fits against the front of the second opening / closing door, thus completing the secure installation of the interlocking component. For disassembly, press the limiting rod to retract it, and the mounting plate can be easily removed. This convenient installation and disassembly method greatly saves switchgear maintenance time. When it is necessary to inspect or replace electrical components inside the switchgear or maintain the interlocking component itself, operators do not need to spend a lot of time and effort disassembling complex fixed structures, enabling them to quickly complete the relevant operations, improve work efficiency, reduce equipment downtime, and minimize production losses caused by downtime.

[0017] This invention provides a reliable interlocking function for the switchgear through the design of its interlocking components and limiting mechanism. When the first opening / closing door is not properly closed, the limiting rod will be in a pop-out state, with its surface abutting against the back of the first opening / closing door, thus preventing the second opening / closing door from opening; conversely, if the second opening / closing door is not fully closed, the first opening / closing door will also be unable to open normally. This interlocking mechanism effectively avoids situations where electrical components inside the switchgear are exposed due to misoperation, preventing operators from accidentally opening the cabinet door when electrical components are energized or not completely shut down, greatly reducing the probability of safety accidents such as electric shock and short circuits, and ensuring the personal safety of operators and the normal operation of electrical components inside the switchgear. Attached Figure Description

[0018] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the interlocking component after disassembly in one embodiment of the present invention;

[0020] Figure 3 This is a rear sectional view of one embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the interlocking component in one embodiment of the present invention;

[0022] Figure 5 This is one embodiment of the present utility model. Figure 4 Enlarged view of the structure at point A in the middle.

[0023] In the diagram: 1. Switch cabinet body; 2. Hinge; 3. Door 1; 4. Door 2; 5. Through hole; 6. Interlocking component; 61. Mounting plate; 62. Lock cylinder body; 7. L-shaped plate; 8. Control button; 9. Circular plate; 10. Rectangular groove; 11. Limiting rod; 12. Partition plate; 13. Insertion groove; 14. Insertion rod; 15. Spring. Detailed Implementation

[0024] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.

[0025] Example

[0026] like Figures 1-5 As shown in the figure, an embodiment of the present invention discloses a switch cabinet with an interlocking device, comprising a switch cabinet body 1. A hinge 2 is fixedly installed on the front of the switch cabinet body 1 by welding or bolts, and the switch cabinet body 1 is rotatably connected to a first opening / closing door 3 and a second opening / closing door 4 via the hinge 2. Through holes 5 are formed on the surface of the second opening / closing door 4 according to preset dimensions and positions, and an interlocking component 6 is installed on the inner wall of the through holes 5. The interlocking component 6 includes a mounting plate 61 and a lock core body 62, and the lock core body 62 is fixedly installed at the center of the mounting plate 61 by welding or bolts. An L-shaped plate 7 is fixedly installed on the back of the first opening / closing door 3 by welding, and a control button 8 is fixedly installed on the inner wall of the L-shaped plate 7 by bolts. The control button 8 is used to control the opening and closing of electrical components inside the switch cabinet body 1. Simultaneously, a limiting mechanism is installed on the interlocking component 6, which enables the installation and disassembly of the interlocking component 6 from the second opening / closing door 4. Finally, the interlocking component 6 is securely installed on the second opening and closing door 4 through the limiting mechanism. The first opening and closing door 3 and the second opening and closing door 4 can achieve interlocking function through the interlocking component 6. When the first opening and closing door 3 is not closed properly, the interlocking component 6 will prevent the second opening and closing door 4 from opening, and vice versa, to ensure the safe operation of electrical components in the switch cabinet.

[0027] Furthermore, a rectangular groove 10 is made on the surface of the mounting plate 61 according to a preset size and position, and an annular plate 9 is fixedly installed on the periphery of the mounting plate 61 by welding. A limiting rod 11 is inserted into the end wall of the rectangular groove 10, and a reset component is connected between the rectangular groove 10 and the limiting rod 11. When installing the interlocking component 6, the mounting plate 61 is inserted into the through hole 5 of the second opening and closing door 4. At this time, the annular plate 9 is in contact with the front of the second opening and closing door 4, and the limiting rod 11 pops out under the action of the reset component, and its surface is in contact with the back of the first opening and closing door 3, thereby firmly installing the interlocking component 6 on the second opening and closing door 4. When it is necessary to disassemble the interlocking component 6, the limiting rod 11 is pressed to retract into the rectangular groove 10, and the mounting plate 61 can be removed from the through hole 5, thereby separating the interlocking component 6 from the second opening and closing door 4.

[0028] Furthermore, a partition plate 12 is fixedly installed on the inner wall of the rectangular groove 10 by welding, and a insertion groove 13 is opened at the end of the limiting rod 11. A connecting rod 14 is fixedly connected to the surface of the rectangular groove 10 by welding, and a spring 15 is fixedly connected to the inner bottom wall of the insertion groove 13 by welding. When the limiting rod 11 is not subjected to external force, the spring 15 is in its natural state, pushing the limiting rod 11 out of the rectangular groove 10 to achieve the limiting function; when the limiting rod 11 is pressed, the spring 15 is compressed, the connecting rod 14 slides in the insertion groove 13, and the limiting rod 11 retracts into the rectangular groove 10, facilitating the disassembly of the interlocking component 6.

[0029] Furthermore, the end of the plug rod 14 is inserted into the inner wall of the plug groove 13, and the end is fixedly connected to one end of the spring 15 by welding. Simultaneously, it is ensured that the inner diameter of the plug groove 13 is compatible with the designed outer diameter of the plug rod 14. This compatible design allows the plug rod 14 to slide smoothly within the plug groove 13, ensuring smooth extension and retraction of the limit plug rod 11 without jamming, thus ensuring the normal operation of the limit mechanism and enabling reliable installation and disassembly of the interlocking component 6 and the second opening / closing door 4.

[0030] Furthermore, the mounting plate 61 is inserted into the inner wall of the through hole 5. At this time, the annular plate 9 is tightly connected to the front of the second opening and closing door 4, which serves to position and initially fix it. At the same time, the surface of the limiting rod 11 is connected to the back of the first opening and closing door 3, further securing the interlocking component 6 to the second opening and closing door 4. This connection method enables the interlocking component 6 to reliably realize the interlocking function between the first opening and closing door 3 and the second opening and closing door 4. When the first opening and closing door 3 is not closed correctly, the limiting rod 11 will prevent the second opening and closing door 4 from opening, and vice versa, effectively ensuring the safe operation of electrical components in the switch cabinet and preventing safety accidents caused by misoperation.

[0031] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods of this specification.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A switchgear with an interlocking device, comprising a switchgear body (1), characterized in that, A hinge (2) is fixedly installed on the front of the switch cabinet body (1). The switch cabinet body (1) is rotatably connected to a first opening door (3) and a second opening door (4) through the hinge (2). A through hole (5) is opened on the surface of the second opening door (4). An interlocking component (6) is installed on the inner wall of the through hole (5). The interlocking component (6) includes a mounting plate (61) and a lock cylinder body (62), wherein the lock cylinder body (62) is fixedly installed at the center of the mounting plate (61); An L-shaped plate (7) is fixedly installed on the back of the opening and closing door (3), and a control button (8) is fixedly installed on the inner wall of the L-shaped plate (7) to control the opening and closing of the electrical components inside the switch cabinet body (1). The interlocking component (6) is equipped with a limiting mechanism to enable installation and removal from the second opening and closing door (4).

2. A switch cabinet with an interlocking device according to claim 1, characterized in that, The limiting mechanism includes a rectangular groove (10) formed on the surface of the mounting plate (61) and an annular plate (9) fixedly installed on the periphery of the mounting plate (61). A limiting rod (11) is inserted into the end wall of the rectangular groove (10), and a reset component is connected between the rectangular groove (10) and the limiting rod (11).

3. A switch cabinet with an interlocking device according to claim 1, characterized in that, The reset assembly includes a partition (12) fixedly installed on the inner sidewall of a rectangular groove (10) and a plug-in circular groove (13) opened at the end of a limiting plug (11). A plug-in rod (14) is fixedly connected to the surface of the rectangular groove (10), and a spring (15) is fixedly connected to the inner bottom wall of the plug-in circular groove (13).

4. A switch cabinet with an interlocking device according to claim 3, characterized in that, The end of the plug rod (14) is inserted into the inner wall of the plug groove (13), and the end is fixedly connected to one end of the spring (15). The inner diameter of the plug groove (13) is adapted to the outer diameter of the plug rod (14).

5. A switch cabinet with an interlocking device according to claim 2, characterized in that, The mounting plate (61) is inserted into the inner wall of the through hole (5), and the annular plate (9) is attached to the front of the opening and closing door (3), and the surface of the limiting rod (11) is attached to the back of the opening and closing door (3).

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