Explosion door structure of electric appliance cabinet

Abstract

The utility model relates to the technical field of explosion door structures, and discloses an explosion door structure of an electric appliance cabinet, which comprises a cabinet body, the front end of the cabinet body is rotatably connected with a cabinet door, the front end of the cabinet door is provided with an observation device, the front end of the cabinet door is provided with a fixing device, the bottom of the cabinet body is fixedly connected with a supporting rod, and the supporting rod is fixedly connected with the cabinet body. The bottom of the supporting rod is fixedly connected with an anti-skid rod, and the front end of the cabinet door is fixedly connected with a handle. By rotating the rotating handle, the gear at the rear end rotates along with the rotating handle, the fixing plate meshed with the gear stably slides in the sliding groove by means of the sliding plate, when the fixing plate is accurately inserted into the groove in the right side of the inner wall of the cabinet body, the cabinet door and the cabinet body are firmly fixed, and the high-strength connecting mode can bear pressure which is far more than that of a common cabinet door by several times. Strong impact force can be effectively resisted at the moment of explosion, the risk that the cabinet door is burst open is greatly reduced, explosion energy is prevented from leaking and diffusing, and a solid guarantee is provided for safety of surrounding personnel and stable operation of equipment.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof door structure technology, and in particular to an explosion-proof door structure for an electrical cabinet. Background Technology

[0002] Electrical equipment is widely used in industrial production and daily life. As a crucial device for the centralized installation and protection of electrical equipment, the safety of electrical cabinets is paramount. In hazardous environments containing flammable and explosive gases or dust, such as petrochemical plants, coal mines, and flour mills, an internal malfunction in an electrical cabinet could generate sparks or high temperatures, potentially triggering an explosion of surrounding flammable and explosive materials, causing serious casualties and property damage.

[0003] Announcement No. CN205693145U describes an explosion-proof door structure for an electrical cabinet, comprising a cabinet body, a cabinet door movably connected to the cabinet body on the outer wall of the cabinet body, the cabinet door opening and closing with the cabinet body via a door hinge assembly, the cabinet door being positioned with the cabinet body via a positioning assembly, the cabinet door being displaced upward by a lifting assembly, the door hinge assembly including a door hinge fixed seat fixed to the cabinet body and a door hinge movable seat fixed to the cabinet door, the door hinge movable seat having a displacement pin.

[0004] The aforementioned explosion-proof door structure for an electrical cabinet comprises a hinge assembly, a positioning assembly, and a lifting assembly, forming a single door structure that can be lifted vertically. When the door is open, the door lock handle is horizontal; when the door is closed, the door lock handle is vertical. During closing, the door slides downwards from the top, with the fixing pins on both sides of the door inserting into the protective plate, and the fixing pin on the bottom edge inserting into the fixing plate. This structure achieves four-way locking between the cabinet door and the cabinet body, protecting the operator's safety in the event of an internal arcing fault. However, the operator must simultaneously control the operating lever to drive the lifting rod to raise and lower the cabinet door, and ensure that the fixing pins on both sides and the bottom edge are precisely inserted into their corresponding positions when closing. This cumbersome and time-consuming operation is not conducive to rapid inspection or maintenance of electrical equipment in emergencies, and it also hinders safe and quick inspection of the interior of the electrical cabinet to determine if there is a fault. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an explosion-proof door structure for an electrical cabinet.

[0006] This utility model is achieved using the following technical solution: an explosion-proof door structure for an electrical cabinet, comprising a cabinet body, a cabinet door rotatably connected to the front end of the cabinet body, an observation device provided at the front end of the cabinet door, a fixing device provided at the front end of the cabinet door, a support rod fixedly connected to the bottom of the cabinet body, an anti-slip rod fixedly connected to the bottom of the support rod, and a handle fixedly connected to the front end of the cabinet door.

[0007] As a further improvement to the above solution, a groove is provided on the right side of the inner wall of the cabinet, and the handle is located on the right side of the fixing device.

[0008] As a further improvement to the above solution, the observation device includes an explosion-proof window, and a viewing window is rotatably connected to the front end of the cabinet door.

[0009] Through the above technical solutions, the explosion-proof window is made of special materials and processes, which has high strength and good explosion-proof performance. While ensuring that personnel can observe the operation of the equipment inside the cabinet through it, it can effectively resist the impact force, high temperature and flame generated by the explosion and prevent the danger from leaking out.

[0010] As a further improvement to the above solution, the explosion-proof window is located inside the cabinet, and the explosion-proof window is located at the rear end of the viewing window.

[0011] With the above technical solution, the viewing window can be flexibly rotated and connected to the cabinet door, making it convenient for operators to open or close it as needed to observe the situation inside the cabinet. Closing it when not in use can enhance the overall explosion-proof performance.

[0012] As a further improvement to the above solution, the fixing device includes a throttle, a gear is fixedly connected to the rear end of the throttle, a sliding groove is provided at the rear end of the cabinet, a sliding plate is slidably connected to the inner wall of the sliding groove, and a fixing plate is fixedly connected to the rear end of the sliding plate.

[0013] Through the above technical solution, the sliding groove provides a movement track for the sliding plate and the fixed plate, restricts their movement direction, ensures that the fixed plate can be accurately inserted into the cabinet groove, and ensures that the fixing device operates stably and reliably.

[0014] As a further improvement to the above solution, the throttle is located at the front end of the cabinet door, and the rear end of the throttle is rotatably connected to the interior of the cabinet door.

[0015] As a further improvement to the above solution, the throttle is located at the bottom of the viewing window, the gear meshes with the fixing plate, and the right side of the fixing plate is inserted into the groove on the right side of the inner wall of the cabinet.

[0016] Through the above technical solution, the gear converts the rotational motion of the throttle into the linear motion of the fixed plate, and through meshing transmission with the fixed plate, precisely controls the sliding position and distance of the fixed plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model uses a fixed plate. By rotating the handle, the rear gear rotates, and the fixed plate, which meshes with the gear, slides in the sliding groove. When the fixed plate is inserted into the groove on the right side of the inner wall of the cabinet, the cabinet door is fixed to the cabinet body. With its high-strength connection, it can withstand several times the pressure of an ordinary cabinet door, greatly reducing the risk of the cabinet door being blown open and the leakage and diffusion of explosive energy, effectively protecting the safety of surrounding personnel and ensuring the stable operation of the equipment.

[0019] This invention features a rotating viewing window that allows for observation through the explosion-proof window. The window is normally closed to maintain its explosion-proof performance, resisting the impact and high temperatures of an explosion. The flexible rotating window allows staff to observe the operating status of the electrical equipment inside the cabinet, such as wiring connections and operating parameters, without opening the cabinet door. This ensures timely information access and avoids weakening the explosion-proof performance due to frequent door opening, thus improving the overall safety factor from multiple dimensions. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the gear structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the sliding groove structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the fixing plate structure of this utility model;

[0024] Figure 5 This is a cross-sectional view of the cabinet door structure of this utility model.

[0025] Explanation of key symbols:

[0026] 1. Cabinet body; 2. Cabinet door; 3. Observation device; 301. Explosion-proof window; 302. Viewing window; 4. Fixing device; 401. Turn handle; 402. Gear; 403. Sliding groove; 404. Sliding plate; 405. Fixing plate; 5. Support rod; 6. Anti-slip rod; 7. Handle. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example:

[0029] Please combine Figure 1-5The explosion-proof door structure of an electrical cabinet in this embodiment includes a cabinet body 1, a cabinet door 2 rotatably connected to the front end of the cabinet body 1, an observation device 3 provided at the front end of the cabinet door 2, a fixing device 4 provided at the front end of the cabinet door 2, a support rod 5 fixedly connected to the bottom of the cabinet body 1, an anti-slip rod 6 fixedly connected to the bottom of the support rod 5, and a handle 7 fixedly connected to the front end of the cabinet door 2.

[0030] A groove is provided on the right side of the inner wall of cabinet 1, and handle 7 is located on the right side of fixing device 4.

[0031] The observation device 3 includes an explosion-proof window 301. A viewing window 302 is rotatably connected to the front end of the cabinet door 2. If it is necessary to observe the interior, the viewing window 302 can be rotated to view through the explosion-proof window 301. Normally, the viewing window 302 is closed to ensure the explosion-proof effect and can resist the impact and high temperature generated by an explosion. The viewing window 302 can be rotated flexibly, so the staff do not need to open the cabinet door 2. They can observe the operating status of the electrical equipment inside the cabinet in real time and clearly by simply rotating the viewing window 302, such as the wiring connection status and equipment operating parameters. This not only ensures the timeliness of information acquisition, but also avoids weakening the explosion-proof performance due to frequent opening of the cabinet door 2, thereby improving the overall safety factor from multiple dimensions.

[0032] The explosion-proof window 301 is located inside the cabinet 1, and is located at the rear end of the viewing window 302.

[0033] The fixing device 4 includes a handle 401, with a gear 402 fixedly connected to the rear end of the handle 401. A sliding groove 403 is provided at the rear end of the cabinet 1, and a sliding plate 404 is slidably connected to the inner wall of the sliding groove 403. A fixing plate 405 is fixedly connected to the rear end of the sliding plate 404. Rotating the handle 401 drives the rear gear 402 to rotate, and the fixing plate 405, meshing with the gear 402, slides within the sliding groove 403 along with the sliding plate 404. When the fixing plate 405 is inserted into the groove on the right side of the inner wall of the cabinet 1, the cabinet door 2 is fixed to the cabinet 1. Thanks to this high-strength connection method, it can withstand several times the pressure of an ordinary cabinet door, greatly reducing the risk of the cabinet door 2 being forced open and the leakage and diffusion of explosive energy, effectively protecting the safety of surrounding personnel and ensuring the stable operation of the equipment.

[0034] The throttle handle 401 is located at the front end of the cabinet door 2, and the rear end of the throttle handle 401 is rotatably connected to the inside of the cabinet door 2.

[0035] The throttle 401 is located at the bottom of the viewing window 302. The gear 402 meshes with the fixing plate 405. The right side of the fixing plate 405 is inserted into the groove on the right side of the inner wall of the cabinet 1.

[0036] The implementation principle of the explosion-proof door structure of an electrical cabinet in this embodiment is as follows: Rotating the handle 401 drives the rear gear 402 to rotate. The fixing plate 405, which meshes with the gear 402, slides within the sliding groove 403 along with the sliding plate 404. When the fixing plate 405 is inserted into the groove on the right side of the inner wall of the cabinet 1, the cabinet door 2 is fixed to the cabinet 1. Thanks to its high-strength connection, it can withstand several times the pressure of an ordinary cabinet door, greatly reducing the risk of the cabinet door 2 being forced open and the leakage and diffusion of explosive energy. This effectively protects the safety of surrounding personnel and the stable operation of equipment. If it is necessary to observe the interior, the handle 401 can be rotated... The viewing window 302 allows for observation through the explosion-proof window 301. Normally closed, the viewing window 302 ensures explosion-proof performance, resisting the impact and high temperatures of an explosion. The viewing window 302 can rotate freely, allowing staff to observe the operating status of the electrical equipment inside the cabinet, such as wiring connections and equipment operating parameters, in real time without opening the cabinet door 2. This ensures timely information acquisition and avoids weakening the explosion-proof performance due to frequent opening of the cabinet door 2, thus improving the overall safety factor from multiple dimensions. The support rod 5 and anti-slip rod 6 at the bottom provide support and anti-slip properties.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An explosion-proof door structure for an electrical cabinet, characterized in that, The cabinet includes a cabinet body (1), a cabinet door (2) is rotatably connected to the front end of the cabinet body (1), an observation device (3) is provided at the front end of the cabinet door (2), a fixing device (4) is provided at the front end of the cabinet door (2), a support rod (5) is fixedly connected to the bottom of the cabinet body (1), an anti-slip rod (6) is fixedly connected to the bottom of the support rod (5), and a handle (7) is fixedly connected to the front end of the cabinet door (2).

2. The explosion-proof door structure of an electrical cabinet as described in claim 1, characterized in that: The inner wall of the cabinet (1) has a groove on the right side, and the handle (7) is located on the right side of the fixing device (4).

3. The explosion-proof door structure of an electrical cabinet as described in claim 1, characterized in that: The observation device (3) includes an explosion-proof window (301), and the front end of the cabinet door (2) is rotatably connected to a viewing window (302).

4. The explosion-proof door structure of an electrical cabinet as described in claim 3, characterized in that: The explosion-proof window (301) is located inside the cabinet (1) and is located at the rear end of the viewing window (302).

5. The explosion-proof door structure of an electrical cabinet as described in claim 1, characterized in that: The fixing device (4) includes a throttle (401), a gear (402) is fixedly connected to the rear end of the throttle (401), a sliding groove (403) is provided at the rear end of the cabinet (1), a sliding plate (404) is slidably connected to the inner wall of the sliding groove (403), and a fixing plate (405) is fixedly connected to the rear end of the sliding plate (404).

6. The explosion-proof door structure of an electrical cabinet as described in claim 5, characterized in that: The throttle handle (401) is located at the front end of the cabinet door (2), and the rear end of the throttle handle (401) is rotatably connected to the interior of the cabinet door (2).

7. The explosion-proof door structure of an electrical cabinet as described in claim 5, characterized in that: The throttle (401) is located at the bottom of the viewing window (302), the gear (402) meshes with the fixing plate (405), and the right side of the fixing plate (405) is inserted into the groove on the right side of the inner wall of the cabinet (1).

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