Explosion-proof control cabinet

Abstract

The utility model provides an explosion-proof control cabinet. Relates to the technical field of control cabinets. The explosion-proof control cabinet comprises an explosion-proof control cabinet shell and a sealing mechanism, a box door is hinged to the explosion-proof control cabinet shell, the box door and the explosion-proof control cabinet shell are fixedly sleeved with a second flange and a first flange respectively, and the sealing mechanism is arranged on the first flange and the second flange. The sealing mechanism comprises a first protection plate, second protection plates, a third protection plate, bolts and nuts, the first flange and the second flange are sleeved with the same first protection plate, the two ends of the first protection plate are connected with second protection plates in an inserted mode, and the first flange and the second flange are sleeved with the two second protection plates. The explosion-proof control cabinet provided by the utility model has the following advantages: through cooperation of all parts, the convenience of repairing the explosion-proof control cabinet by a worker can be improved, the sealing performance of the explosion-proof control cabinet is further improved, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control cabinets, in particular to an explosion-proof control cabinet. Background Art

[0002] A control cabinet assembles switchgear, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or screen according to electrical wiring requirements. Its layout should meet the requirements of the normal operation of the power system, be convenient for maintenance, and not endanger the safety of personnel and surrounding equipment. During normal operation, the circuit can be switched on or off manually or automatically. In case of a fault or abnormal operation, the protective electrical appliance cuts off the circuit or gives an alarm. The measuring instruments can display various parameters during operation, and some electrical parameters can also be adjusted to prompt or send a signal for deviation from the normal working state. It is commonly used in power generation, distribution, and substation. An explosion-proof control cabinet is suitable for flammable and explosive occasions (such as coal mines, chemical industries, petroleum, and power industries), with high safety factors, strong operation functions, and stable performance.

[0003] In the prior art, the cabinet door and the cabinet body of the explosion-proof control cabinet are fixed with multiple bolts to maintain the sealing performance between the cabinet door and the cabinet body, preventing combustible gas from entering the cabinet body and being ignited by electric sparks. When it is necessary to urgently open the cabinet door for emergency repair of the equipment inside the cabinet body, the bolts need to be disassembled one by one before the cabinet door can be opened. Opening the cabinet door in an emergency takes a long time. For the above problems, the literature with the application number 202321516155.1 discloses an explosion-proof control cabinet, which includes a cabinet body and a cabinet door. Among them, a plurality of installation grooves are provided along the edge of the flange of the cabinet door, and a plurality of connecting pieces corresponding to the number of the installation grooves are installed along the edge of the opening end of the cabinet body. The connecting piece includes a screw rod and a connecting shaft arranged perpendicular to each other. The connecting shaft is fixed at the first end of the screw rod, and the connecting shaft is rotatably connected to the cabinet body. When connecting, the nut compresses the elastic member onto the pressing plate, and then presses the cabinet door tightly against the cabinet body to ensure the connection sealing performance between the cabinet door and the cabinet body. When it is necessary to urgently open the cabinet door, the screw rod is directly swung outward from the installation groove. During the swinging process, the elastic member can scale itself according to the real-time position of the swinging screw rod, so that the screw rod disengages from the installation groove without loosening the nut, and a plurality of connecting pieces can be quickly opened, shortening the time required to open the cabinet door.

[0004] However, after reading the above patent literature, the following deficiencies are found: In the actual use process, although it is possible to quickly open a plurality of connecting pieces, since a plurality of connecting pieces are provided on the cabinet body, it is also necessary for the staff to operate on a plurality of connecting pieces in sequence when opening the connecting pieces, which is time-consuming and laborious, greatly reducing the convenience of maintaining the control cabinet, and there is room for improvement.

[0005] Therefore, the utility model provides an explosion-proof control cabinet to solve the above problems. Summary of the Utility Model

[0006] To solve the above technical problems, an explosion-proof control cabinet provided by the utility model includes: an explosion-proof control cabinet housing and a sealing mechanism;

[0007] A box door is hinged on the explosion-proof control cabinet housing, and a second flange and a first flange are respectively fixedly sleeved on the box door and the explosion-proof control cabinet housing, and the sealing mechanism is arranged on the first flange and the second flange;

[0008] The sealing mechanism includes a first protective plate, a second protective plate, a third protective plate, bolts and nuts. The first flange and the second flange are sleeved with the same first protective plate. The two ends of the first protective plate are respectively inserted with the second protective plates. The two second protective plates are sleeved on the first flange and the second flange. One ends of the two second protective plates are respectively clamped with the third protective plates. The two third protective plates are sleeved on the first flange and the second flange. Through the cooperative design among the first flange, the second flange and the sealing mechanism, the convenience for the staff to repair the explosion-proof control cabinet is improved. Through the cooperative action among the first protective plate, the two second protective plates and the third protective plates, the sealing performance can be further improved, and thus the safety is improved.

[0009] Preferably, the same two bolts are connected to the two third protective plates and the first flange and the second flange. One ends of the two bolts are respectively threadedly connected with nuts for fixing the two third protective plates.

[0010] Preferably, two slots are respectively opened at the two ends of the first protective plate, and two inserting rods are respectively fixedly connected to one ends of the two second protective plates. The four inserting rods are respectively inserted into the four slots for assembling the two second protective plates and the first protective plate.

[0011] Preferably, fixing plates are respectively fixedly connected to one ends of the two second protective plates, limiting holes are respectively opened on the two fixing plates, limiting rods are respectively fixedly connected in the two third protective plates, the two limiting rods are respectively clamped with the two limiting holes, and the two third protective plates are respectively sleeved on the two fixing plates for assembling the two third protective plates and the two second protective plates respectively, so as to avoid the two second protective plates and the first protective plate from separating from the first flange and the second flange.

[0012] Preferably, the same two through holes are opened on the two third protective plates and the first flange and the second flange. One ends of the two bolts respectively pass through the two through holes, which is convenient for installing the two bolts. Through the interaction among the two bolts, the two third protective plates, the first flange and the second flange, the effect of limiting and fixing the two third protective plates can be achieved.

[0013] Preferably, the first flange is in contact connection with the second flange, and a first sealing gasket is fixedly installed on one side of the cabinet door. Second sealing gaskets are fixedly installed in the first protective plate, the two second protective plates and the third protective plate, improving the sealing performance.

[0014] Compared with the related art, an explosion-proof control cabinet provided by the present utility model has the following beneficial effects:

[0015] The present utility model provides an explosion-proof control cabinet. Through the cooperative design among the first flange, the second flange and the sealing mechanism, the convenience for staff to rush-repair the explosion-proof control cabinet is improved. Through the cooperative action among the first protective plate, the two second protective plates and the third protective plate, the sealing performance can be further improved, thereby enhancing the safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of an explosion-proof control cabinet provided by the present utility model;

[0017] Figure 2 is an anatomical schematic diagram of an explosion-proof control cabinet provided by the present utility model;

[0018] Figure 3 is an explosion schematic diagram of an explosion-proof control cabinet provided by the present utility model;

[0019] Figure 4 is an assembly schematic diagram of an explosion-proof control cabinet provided by the present utility model;

[0020] Figure 5 is a rear-view structural schematic diagram of an explosion-proof control cabinet provided by the present utility model.

[0021] Reference numerals in the drawings: 1, explosion-proof control cabinet housing; 2, cabinet door; 3, first flange; 4, second flange; 5, first protective plate; 6, second protective plate; 7, third protective plate; 8, bolt; 9, nut; 10, fixing plate; 11, limiting rod; 12, inserting rod; 13, inserting slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0023] Please refer to Figures 1 - 5 , an explosion-proof control cabinet includes: an explosion-proof control cabinet housing 1 and a sealing mechanism;

[0024] A cabinet door 2 is hinged on the explosion-proof control cabinet housing 1. A second flange 4 and a first flange 3 are respectively and fixedly sleeved on the cabinet door 2 and the explosion-proof control cabinet housing 1. The sealing mechanism is arranged on the first flange 3 and the second flange 4;

[0025] The sealing mechanism includes a first protective plate 5, a second protective plate 6, a third protective plate 7, bolts 8 and nuts 9. A same first protective plate 5 is sleeved on the first flange 3 and the second flange 4. Both ends of the first protective plate 5 are inserted with second protective plates 6. The two second protective plates 6 are both sleeved on the first flange 3 and the second flange 4. One end of each of the two second protective plates 6 is clamped with a third protective plate 7. The two third protective plates 7 are both sleeved on the first flange 3 and the second flange 4. Through the cooperative design among the first flange 3, the second flange 4 and the sealing mechanism, the convenience for the staff to rush-repair the explosion-proof control cabinet is improved. Through the cooperative action among the first protective plate 5, the two second protective plates 6 and the third protective plate 7, the sealing performance can be further improved, thereby enhancing the safety.

[0026] In this mode, two same bolts 8 are connected to the two third protective plates 7, the first flange 3 and the second flange 4. One end of each of the two bolts 8 is threadedly connected with a nut 9 for fixing the two third protective plates 7.

[0027] In this mode, two slots 13 are opened at both ends of the first protective plate 5. Two insertion rods 12 are fixedly connected to one end of each of the two second protective plates 6. The four insertion rods 12 are respectively inserted into the four slots 13 for assembling the two second protective plates 6 and the first protective plate 5.

[0028] In this mode, two fixing plates 10 are fixedly connected to one end of each of the two second protective plates 6. Limit holes are opened on the two fixing plates 10. Limit rods 11 are fixedly connected inside the two third protective plates 7. The two limit rods 11 are respectively clamped with the two limit holes. The two third protective plates 7 are respectively sleeved on the two fixing plates 10 for assembling the two third protective plates 7 and the two second protective plates 6 respectively, thereby achieving the effect of preventing the two second protective plates 6 and the first protective plate 5 from separating from the first flange 3 and the second flange 4.

[0029] In this mode, two same through holes are opened on the two third protective plates 7, the first flange 3 and the second flange 4. One end of each of the two bolts 8 passes through the two through holes, facilitating the installation of the two bolts 8. Through the interaction among the two bolts 8, the two third protective plates 7, the first flange 3 and the second flange 4, the effect of limiting and fixing the two third protective plates 7 can be achieved.

[0030] In this mode, the first flange 3 is in contact connection with the second flange 4. A first sealing gasket is fixedly installed on one side of the cabinet door 2. Second sealing gaskets are fixedly installed inside the first protective plate 5, the two second protective plates 6 and the third protective plate 7 to improve the sealing performance.

[0031] The working principle of an explosion-proof control cabinet provided by the present utility model is as follows:

[0032] During use, first close the cabinet door 2 with the explosion-proof control cabinet housing 1, and make the first flange 3 contact the second flange 4. Then, sleeved the first protective plate 5 on the first flange 3 and the second flange 4. After that, respectively sleeve the two second protective plates 6 on the first flange 3 and the second flange 4, and make the four insertion rods 12 respectively inserted into the four slots 13, so as to achieve the purpose of assembling the two second protective plates 6 and the first protective plate 5. After that, respectively sleeve the two third protective plates 7 on the first flange 3 and the second flange 4, and make the two third protective plates 7 respectively sleeved on the two fixing plates 10, and make the two limiting rods 11 respectively correspond to the limiting holes on the two fixing plates 10. After that, respectively push the two third protective plates 7, so that the two third protective plates 7 slide a certain distance on the first flange 3 and the second flange 4, and make the two limiting rods 11 respectively clamped with the two fixing plates 10, and make the through holes on the two third protective plates 7 correspond to the through holes on the first flange 3 and the second flange 4. After that, respectively pass one end of the two bolts 8 through the two through holes, and assemble the two nuts 9 with the two bolts 8 respectively. In summary, the effect of metal sealing around the first flange 3 and the second flange 4 is achieved, and the effect of preventing flammable and explosive gases from entering the explosion-proof control cabinet housing 1 is achieved;

[0033] When maintenance of the explosion-proof control cabinet is required, the staff only need to manually rotate the two nuts 9 in the reverse direction, and successively remove the two bolts 8, the third protective plate 7, the second protective plate 6 and the first protective plate 5 to open the cabinet door 2 and repair the electrical components in the explosion-proof control cabinet housing 1, which greatly improves the convenience;

[0034] Moreover, through the cooperation of the first protective plate 5, the two second protective plates 6 and the third protective plate 7, the effect of further improving the sealing performance can be achieved, and thus the safety is improved.

[0035] Compared with the related technology, an explosion-proof control cabinet provided by the present utility model has the following beneficial effects: through the cooperation of each component, not only the convenience of the staff for repairing the explosion-proof control cabinet is improved, but also the sealing performance of the explosion-proof control cabinet is further improved, the safety is improved, and the structure is simple and the practicability is higher.

[0036] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. An explosion-proof control cabinet, characterized in that: It comprises an explosion-proof control cabinet housing (1) and a sealing mechanism; The explosion-proof control cabinet housing (1) is hingedly provided with a door (2); the door (2) and the explosion-proof control cabinet housing (1) are respectively fixedly provided with a second flange (4) and a first flange (3); the sealing mechanism is provided on the first flange (3) and the second flange (4); The sealing mechanism comprises a protective plate 1 (5), a protective plate 2 (6), a protective plate 3 (7), bolts (8) and nuts (9); the same protective plate 1 (5) is sleeved on the flange 1 (3) and the flange 2 (4); both ends of the protective plate 1 (5) are plugged with protective plate 2 (6); the two protective plates 2 (6) are sleeved on the flange 1 (3) and the flange 2 (4); one end of the two protective plates 2 (6) is clamped with protective plate 3 (7); the two protective plates 3 (7) are sleeved on the flange 1 (3) and the flange 2 (4).

2. An explosion-proof control cabinet according to claim 1, characterized in that: The two protective plates (3) and the flange (3) and flange (4) are connected with two identical bolts (8), and one end of the two bolts (8) is threadedly connected with a nut (9).

3. The explosion-proof control cabinet according to claim 1, characterized in that: Two slots (13) are provided at both ends of the protective plate 1 (5).

4. An explosion-proof control cabinet according to claim 3, characterized in that: One end of each of the two protection plates (6) is fixedly connected to two insertion rods (12), and the four insertion rods (12) are respectively plugged into the four slots (13).

5. An explosion-proof control cabinet according to claim 4, characterized in that: One end of each of the two protective plates (6) is fixedly connected to a fixing plate (10), and a limiting hole is provided on each of the two fixing plates (10).

6. An explosion-proof control cabinet according to claim 5, characterized in that: The two protective plates (3) (7) are both fixedly connected with a limiting rod (11), the two limiting rods (11) are respectively engaged with the two limiting holes, and the two protective plates (3) (7) are respectively sleeved on the two fixing plates (10).

7. An explosion-proof control cabinet according to claim 2, characterized in that: The two protective plates (3) and the flange (3) and flange (4) are provided with two identical through holes, and one end of the two bolts (8) passes through the two through holes respectively.

8. The explosion-proof control cabinet according to claim 1, characterized in that: The flange one (3) is in contact with the flange two (4), a sealing gasket one is fixedly installed on one side of the door (2), and a sealing gasket two is fixedly installed inside the protective plate one (5), the two protective plates two (6) and the protective plate three (7).

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