Protective shielding cabinet

Abstract

The utility model provides a protection type shielding cabinet, which comprises a shielding cabinet assembly, the top of the shielding cabinet assembly is provided with a circulating ventilation cooling assembly, the inner surface of the shielding cabinet assembly is provided with a plurality of slide rail assemblies in an arrangement form, the inner part of each slide rail assembly is provided with an equipment drawer assembly, and the equipment drawer assembly is provided with an air inlet and an air outlet. An induction fire extinguishing assembly is arranged on the surface, close to the top, of the interior of the shielding cabinet assembly. According to the utility model, the equipment drawer assembly in the shielding cabinet assembly can utilize the wiring board on one side to supply power to equipment, and the small-sized safe box arranged in the shielding cabinet assembly can temporarily store important equipment in the shielding cabinet assembly; the sensing fire extinguishing assembly arranged at the top of the interior can sense fire and smoke in time when the interior temperature is too high, and the dust fire extinguisher is started, and the fixed base assembly and the shock-proof moving assembly arranged at the bottom can achieve the shock absorption effect on the whole during carrying or small earthquakes suddenly.

Description

Technical Field

[0001] The utility model relates to the technical field of cabinets, in particular to a protective shielding cabinet. Background Art

[0002] Electromagnetic shielding cabinets can be used to place computers, network servers and communication electronic equipment, etc. They can prevent personal injury from electromagnetic waves, effectively suppress electromagnetic information leakage and prevent external strong electromagnetic interference from affecting the normal operation of equipment. They are often used in government agencies, banks, securities, military, scientific research and other industries with high confidentiality requirements. The better the airtightness of the cabinet, the better its electromagnetic shielding performance. During the use of electromagnetic shielding cabinets, the electronic equipment inside will generate a lot of heat, which needs to be dissipated in time. The commonly used heat dissipation method is to use fans.

[0003] A flexible employment service host cabinet disclosed in Chinese utility model patent CN220173613U can restrain multiple connecting wires connected to the server through the telescopic rod working in conjunction with the first spring, the telescopic rod and the lower pressure block, and then connect the connecting wires to the server through the through holes on the harness plate, but the overall structure has low protection, and the internal heat dissipation structure is unidirectional heat dissipation, and the heat dissipation effect is not good. In addition, there is a lack of shock-absorbing structure for the cabinet in the event of a sudden special earthquake environment, and finally there is a lack of response structure when a fire and smoke occurs inside. Therefore, the present application provides a protective shielding cabinet to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a protective shielding cabinet to solve the problems that the overall structure of the existing cabinet has low protection, the internal heat dissipation structure is one-way heat dissipation, and the heat dissipation effect is poor. In addition, there is a lack of a shock-absorbing structure for the cabinet in a sudden special earthquake environment, and there is a lack of a response structure when a fire and smoke occur inside.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A protective shielding cabinet comprises a shielding cabinet assembly, wherein a circulating ventilation cooling assembly is provided on the top of the shielding cabinet assembly, a plurality of slide rail assemblies are arranged on the inner surface of the shielding cabinet assembly, an equipment drawer assembly is arranged inside each of the slide rail assemblies, an induction fire extinguishing assembly is arranged on the inner surface of the shielding cabinet assembly near the top, a fixed base assembly is provided at the bottom of the shielding cabinet assembly, a shock-absorbing movable assembly is provided at the bottom of the fixed base assembly, the shock-absorbing movable assembly comprises four buffer rods arranged in a matrix, a foot brake pulley is provided at the bottom of each buffer rod, a buffer plate is provided between every two buffer rods, a plurality of buffer rubbers are arranged inside the buffer plate, a hydraulic rod is provided inside the buffer rod, a buffer cylinder is provided at the bottom of the hydraulic rod, and a first fixing nut and a second fixing nut are respectively provided on the outer surface of the buffer cylinder near the top and bottom edges.

[0007] Optionally, the shielding cabinet assembly includes a cabinet having a top plate on the top of the cabinet, a monitor on one side surface of the cabinet near the top edge, a plurality of hinges arranged on the front end surface of the cabinet near the edge of one side, and a cabinet door on one side of all the hinges.

[0008] Optionally, a surveillance mirror is provided on one side surface of the cabinet door near the top edge, a password lock is provided on the center of one side surface of the cabinet door near one end edge, the outer side of the password lock is covered with a peeping panel, a door handle switch passes through the bottom of the center of one side surface of the cabinet door near one end, an arc-shaped card plate is provided on one end of the door handle switch, the inner surface of the cabinet door is covered with a moisture-proof pad, and a small safe is provided on the inner bottom surface of the cabinet.

[0009] Optionally, the circulating ventilation cooling assembly includes a U-shaped tube, and the bottom of both sides of the U-shaped tube are respectively connected to a first ventilator and a second ventilator, a plurality of cooling rods are arranged in an arrangement at the inner center of the U-shaped tube, a plurality of first dust filters are arranged in an arrangement inside one side of the U-shaped tube, and a plurality of second dust filters are arranged in an arrangement inside the other side of the U-shaped tube.

[0010] Optionally, a first motor is provided at the bottom of the first ventilator, and an output end of the first motor is connected to a first fan; a second motor is provided at the top of the second ventilator, and an output end of the second motor is connected to a second fan.

[0011] Optionally, the slide rail assembly includes a first hinge and a second hinge, one side of the first hinge is connected to a first steel ball three-bar slide rail, and one side of the second hinge is connected to a second steel ball three-bar slide rail.

[0012] Optionally, the induction fire extinguishing component includes a smoke alarm, and the left and right sides of the smoke alarm are respectively connected to a first connecting line and a second connecting line, one end of the first connecting line is connected to a first dust fire extinguisher, and one end of the second connecting line is connected to a second dust fire extinguisher.

[0013] Optionally, the device drawer assembly includes a device drawer and a wiring board, a heat sink is provided at the inner bottom of the device drawer, a handle is provided at the center of the front surface of the device drawer, and a heat dissipation groove is provided on the rear surface of the device drawer.

[0014] Optionally, a wiring slot is provided inside the wiring board, and a plurality of sockets are arranged on a surface of one side of the wiring board.

[0015] Optionally, the fixed base assembly includes a fixed base, a fixing groove is opened at the center of the top surface of the fixed base, L-shaped reinforcement plates are respectively provided at the four corners of the fixed groove, and a third hinge and a fourth hinge are respectively provided at the center of the left and right sides of the top of the fixed groove.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] In the above scheme, the equipment drawer assembly inside the shielded cabinet assembly can be used to power the equipment using the terminal board on one side, the small safe arranged inside can temporarily store important equipment inside, the induction fire extinguishing assembly arranged on the top of the interior can timely sense and activate the dust fire extinguisher when the internal temperature is too high and causes fire and smoke, and the fixed base assembly and shock-absorbing mobile assembly arranged at the bottom can achieve shock-absorbing effect for the whole during transportation or in the event of a sudden small earthquake. In addition, heat will be generated during long-term use. A circulating ventilation cooling assembly is opened on the top of the shielded cabinet assembly to suck the internal airflow into the U-shaped tube, and the air can be cooled and the dust in the air can be filtered out through the cooling rod and the filter net and blown into the interior again, solving the problem of heat dissipation and inconvenience in movement during long-term use.

[0018] By setting a buffer rod within the shock-absorbing mobile component structure, the internal hydraulic rod and buffer cylinder can be used to press the top equipment down to the hydraulic rod when a sudden severe vibration occurs. The buffer cylinder provides power to the top hydraulic rod to buffer and fix the top equipment. At the same time, the buffer rubber inside the buffer plate will also buffer the force when the top equipment is pressed down, thereby reducing the relative vibration as much as possible and preventing damage to the internal equipment.

[0019] By setting a plurality of cooling rods in an arranged form at the inner center of the U-shaped tube within the circulating ventilation cooling component structure, the hot air inside is first sucked into the U-shaped tube by the first motor and the first fan, and the dust in the air is first filtered through the first dust filter, and then the air is cooled at the cooling rod, and then the cooled air is sucked away by the second motor and the second fan, and passed through the second dust filter for secondary dust filtration, and then blown into the interior of the shielding cabinet component to complete the heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a protective shielding cabinet;

[0022] Figure 2 It is a schematic diagram of the external structure of the shielding cabinet assembly;

[0023] Figure 3 It is a schematic diagram of the internal structure of the shielding cabinet assembly;

[0024] Figure 4 It is a schematic diagram of the structure of the equipment drawer component;

[0025] Figure 5 It is a schematic diagram of the structure of the slide rail assembly;

[0026] Figure 6 It is a schematic diagram of the structure of the circulating ventilation cooling component;

[0027] Figure 7 It is a schematic diagram of the structure of the induction fire extinguishing component;

[0028] Figure 8 It is a schematic diagram of the structure of the fixed base assembly;

[0029] Fig. 9 It is a schematic diagram of the structure of the shock-absorbing mobile component;

[0030] Fig.10 Schematic diagram of the internal planar structure of the buffer rod.

[0031] [reference numerals]

[0032] 1. Shielded cabinet assembly; 101. Cabinet; 102. Top plate; 103. Monitor; 104. Hinge; 105. Cabinet door; 106. Surveillance mirror; 107. Password lock; 108. Peep plate; 109. Door handle switch; 110. Curved card board; 111. Thickened moisture-proof pad; 112. Small safe; 2. Circulation ventilation cooling assembly; 201. U-shaped tube; 202. First ventilator; 203. Second ventilator; 204. Cooling rod; 205. First dust filter; 206. Second dust filter; 207. First motor; 208. Second motor; 209. First fan; 210. Second fan; 3. Slide rail assembly; 301. First hinge; 302. Second hinge; 303. First steel ball three-bar slide rail; 304. Second steel ball three-bar slide rail Rail; 4. Induction fire extinguishing assembly; 401. Smoke alarm; 402. First connecting line; 403. First dust fire extinguisher; 404. Second connecting line; 405. Second dust fire extinguisher; 5. Equipment drawer assembly; 501. Equipment drawer; 502. Heat sink; 503. Handle; 504. Heat sink; 505. Terminal block; 506. Terminal slot; 507. Socket; 6. Fixed base assembly; 601. Fixed base; 602. Fixed slot; 603. L-shaped reinforcement plate; 604. Third hinge; 605. Fourth hinge; 7. Shock-absorbing moving assembly; 701. Buffer rod; 702. Foot brake pulley; 703. Buffer plate; 704. Buffer rubber; 705. Hydraulic rod; 706. First fixing nut; 707. Buffer cylinder; 708. Second fixing nut.

[0033] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0034] The following is a detailed description of a protective shielding cabinet provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0035] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0036] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0037] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0038] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0039] like Figures 1 to 5 As shown, an embodiment of the utility model provides a protective shielding cabinet, including a shielding cabinet assembly 1, a circulating ventilation cooling assembly 2 is provided on the top of the shielding cabinet assembly 1, a plurality of slide rail assemblies 3 are arranged on the inner surface of the shielding cabinet assembly 1, an equipment drawer assembly 5 is provided inside each slide rail assembly 3, an induction fire extinguishing assembly 4 is provided on the inner surface of the shielding cabinet assembly 1 near the top, a fixed base assembly 6 is provided on the bottom of the shielding cabinet assembly 1, and a shock-absorbing movable assembly 7 is provided on the bottom of the fixed base assembly 6.

[0040] The shielding cabinet assembly 1 includes a cabinet 101, a top plate 102 is provided on the top of the cabinet 101, a monitor 103 is provided on one side surface of the cabinet 101 near the top edge, a plurality of hinges 104 are arranged on the front surface of the cabinet 101 near the edge of one side, a cabinet door 105 is provided on one side of all the hinges 104, a monitoring mirror 106 is provided on one side of the cabinet door 105 near the top edge, a password lock 107 is provided at the center of one side surface of the cabinet door 105 near one end edge, the outer side of the password lock 107 is covered with a peeping plate 108, a door handle switch 109 is passed through the bottom of the center of one end of the cabinet door 105, an arc-shaped card plate 110 is provided at one end of the door handle switch 109, the inner surface of the cabinet door 105 is covered with a thickened moisture-proof pad 111, and a small safe 112 is provided on the inner bottom surface of the cabinet 101.

[0041] The slide rail assembly 3 includes a first hinge 301 and a second hinge 302, one side of the first hinge 301 is connected to a first steel ball three-bar slide rail 303, one side of the second hinge 302 is connected to a second steel ball three-bar slide rail 304, the equipment drawer assembly 5 includes an equipment drawer 501 and a wiring board 505, a heat sink 502 is provided at the inner bottom of the equipment drawer 501, a handle 503 is provided at the center of the front end surface of the equipment drawer 501, a heat sink 504 is provided on the rear end surface of the equipment drawer 501, a wiring groove 506 is provided inside the wiring board 505, and a plurality of sockets 507 are arranged on one side surface of the wiring board 505.

[0042] By setting a peeping plate 108 on the outside of the password lock 107, the password can be input confidentially from people on the side. The internal device status can be viewed at any time through the monitoring mirror 106. The monitor 103 is connected to the internal device circuit to monitor the power supply and other available data status of the internal device at any time. The slide rail assembly 3 uses the first hinge 301 and the second hinge 302 to fix the two slide rails on the inner rear end surface of the cabinet 101.

[0043] The heat dissipation plate 502 and the heat dissipation slot 504 in the structure of the equipment drawer assembly 5 can be used to simply dissipate heat for the equipment placed on the surface, and the wiring board 505 on one side facilitates the power connection of the internal equipment.

[0044] like Figure 6 and Figure 7As shown, the circulating ventilation cooling component 2 includes a U-shaped tube 201, and the bottoms of both sides of the U-shaped tube 201 are respectively connected to a first ventilator 202 and a second ventilator 203, a plurality of cooling rods 204 are arranged in an array at the inner center of the U-shaped tube 201, a plurality of first dust filters 205 are arranged in an array inside one side of the U-shaped tube 201, a plurality of second dust filters 206 are arranged in an array inside the other side of the U-shaped tube 201, a first motor 207 is arranged at the inner bottom of the first ventilator 202, and a plurality of second dust filters 206 are arranged in an array at the inner bottom of the second ventilator 203. The output end of a motor 207 is connected to a first fan 209, a second motor 208 is provided at the internal top of the second ventilator 203, the output end of the second motor 208 is connected to a second fan 210, the induction fire extinguishing assembly 4 includes a smoke alarm 401, and the left and right sides of the smoke alarm 401 are respectively connected to a first connecting line 402 and a second connecting line 404, one end of the first connecting line 402 is connected to a first dust fire extinguisher 403, and one end of the second connecting line 404 is connected to a second dust fire extinguisher 405.

[0045] A number of cooling rods 204 are arranged in an array at the inner center of the U-shaped tube 201 within the structure of the circulating ventilation cooling component 2. First, the hot air inside is sucked into the U-shaped tube 201 by the first motor 207 and the first fan 209. The dust in the air is first filtered through the first dust filter 205, and then the air is cooled at the cooling rod 204. The cooled air is then sucked away by the second motor 208 and the second fan 210 and passed through the second dust filter 206 for secondary dust filtration. The air is then blown into the interior of the shielding cabinet component 1 to complete the heat dissipation.

[0046] If a fire occurs inside the cabinet, smoke will trigger the smoke alarm 401, which is connected to the first dust fire extinguisher 403 and the second dust fire extinguisher 405 on both sides, and simultaneously triggers the spraying of dust into the cabinet to extinguish the fire.

[0047] like Figures 8 to 10 As shown, the shock-absorbing moving component 7 includes four buffer rods 701 arranged in a matrix form, a foot brake pulley 702 is provided at the bottom of each buffer rod 701, a buffer plate 703 is provided between every two buffer rods 701, and a plurality of buffer rubbers 704 are arranged inside the buffer plate 703. A hydraulic rod 705 is provided inside the buffer rod 701, and a buffer cylinder 707 is provided at the bottom of the hydraulic rod 705. The outer surface of the buffer cylinder 707 is provided with a first fixing nut 706 and a second fixing nut 708 at the top and bottom edges respectively. The fixed base component 6 includes a fixed base 601, a fixing groove 602 is opened at the center of the top surface of the fixed base 601, L-shaped reinforcement plates 603 are provided at the four corners of the fixed groove 602, and a third hinge 604 and a fourth hinge 605 are provided at the center of the left and right sides of the top of the fixed groove 602.

[0048] Through the buffer rod 701 in the shock-absorbing moving component 7 structure, the internal hydraulic rod 705 and buffer cylinder 707 can be used to press the top equipment down to the hydraulic rod 705 when a sudden and severe vibration occurs. The buffer cylinder 707 provides power for the top hydraulic rod 705 to buffer and fix the top equipment. At the same time, the buffer rubber 704 inside the buffer plate 703 will also buffer the force when the top equipment is pressed down, thereby reducing the relative vibration as much as possible and preventing damage to the internal equipment.

[0049] The working principle of the utility model is as follows: first, the equipment drawer assembly 5 inside the shielding cabinet assembly 1 can use the wiring board 505 on one side to power the equipment, the small safe 112 arranged inside can temporarily store important equipment inside, the induction fire extinguishing assembly 4 arranged on the top inside can timely sense and start the dust fire extinguisher when the internal temperature is too high and causes fire and smoke, and the fixed base assembly 6 and the shock-absorbing mobile assembly 7 arranged at the bottom can achieve shock-absorbing effect on the whole during transportation or in case of sudden small earthquakes. In addition, heat will be generated when used for a long time. A circulating ventilation cooling assembly 2 is opened on the top of the shielding cabinet assembly 1 to suck the internal airflow into the U-shaped tube 201, and the air can be cooled and the dust in the air can be filtered out through the cooling rod 204 and the filter net, and the dust in the air can be blown into the interior again, which solves the problem of heat dissipation and inconvenience in movement during long-term use. Then, the buffer rod 701 in the structure of the shock-absorbing mobile assembly 7 can be used to reduce the pressure of the air. When there is a sudden and violent vibration, the rod 705 and the buffer cylinder 707 press the top equipment down to the hydraulic rod 705. The buffer cylinder 707 provides power for the top hydraulic rod 705 to buffer and fix the top equipment. At the same time, the buffer rubber 704 inside the buffer plate 703 will also buffer the force when the top equipment is pressed down, so as to reduce the relative vibration as much as possible and prevent damage to the internal equipment. Finally, a number of cooling rods 204 are arranged in an arranged form at the inner center of the U-shaped tube 201 in the structure of the circulating ventilation cooling component 2. First, the hot air inside is sucked into the U-shaped tube 201 by the first motor 207 and the first fan 209, and the dust in the air is first filtered through the first dust filter 205, and then the air is cooled at the cooling rod 204, and then the cooled air is sucked away by the second motor 208 and the second fan 210, and then the second dust filter 206 is used for secondary dust filtration, and then the air is blown into the interior of the shielding cabinet component 1 to complete the heat dissipation.

[0050] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the preferred embodiment of the present invention, and the present invention can be fully understood by those skilled in the art without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A protective shielding cabinet, characterized in that: It comprises a shielding cabinet assembly, the top of which is provided with a circulating ventilation cooling assembly, the inner surface of which is provided with a plurality of slide rail assemblies in an arranged form, each of which is provided with an equipment drawer assembly, the inner surface of which is provided with an induction fire extinguishing assembly near the top surface, the bottom of which is provided with a fixed base assembly, and the bottom of which is provided with a shock-absorbing movable assembly; The shock-absorbing moving assembly includes four buffer rods arranged in a matrix form, each of the buffer rods is provided with a foot brake pulley at the bottom, a buffer plate is provided between every two buffer rods, a plurality of buffer rubbers are arranged inside the buffer plate, a hydraulic rod is provided inside the buffer rod, a buffer cylinder is provided at the bottom of the hydraulic rod, and a first fixing nut and a second fixing nut are respectively provided on the outer surface of the buffer cylinder near the top and bottom edges.

2. The protective shielding cabinet according to claim 1, characterized in that: The shielding cabinet assembly includes a cabinet, a top plate is provided on the top of the cabinet, a monitor is provided on one side surface of the cabinet near the top edge, a plurality of hinges are arranged on the front end surface of the cabinet near the edge of one side, and a cabinet door is provided on one side of all the hinges.

3. The protective shielding cabinet according to claim 2, characterized in that: A surveillance mirror is provided at the top edge of one side surface of the cabinet door, a password lock is provided at the center of one side surface of the cabinet door at the edge of one end, the outer side of the password lock is covered with a peeping plate, a door handle switch passes through the bottom of the center of one side surface of the cabinet door at one end, an arc-shaped card plate is provided at one end of the door handle switch, the inner surface of the cabinet door is covered with a moisture-proof pad, and a small safe is provided on the inner bottom surface of the cabinet.

4. The protective shielding cabinet according to claim 1, characterized in that: The circulating ventilation cooling assembly includes a U-shaped tube, and the bottoms of both sides of the U-shaped tube are respectively connected to a first ventilator and a second ventilator, a plurality of cooling rods are arranged in an array at the inner center of the U-shaped tube, a plurality of first dust filters are arranged in an array inside one side of the U-shaped tube, and a plurality of second dust filters are arranged in an array inside the other side of the U-shaped tube.

5. The protective shielding cabinet according to claim 4, characterized in that: A first motor is provided at the bottom of the first ventilator, and an output end of the first motor is connected to a first fan. A second motor is provided at the top of the second ventilator, and an output end of the second motor is connected to a second fan.

6. The protective shielding cabinet according to claim 1, characterized in that: The slide rail assembly includes a first hinge and a second hinge, one side of the first hinge is connected to a first steel ball three-bar slide rail, and one side of the second hinge is connected to a second steel ball three-bar slide rail.

7. The protective shielding cabinet according to claim 1, characterized in that: The induction fire extinguishing assembly includes a smoke alarm, and the left and right sides of the smoke alarm are respectively connected to a first connecting line and a second connecting line, one end of the first connecting line is connected to a first dust fire extinguisher, and one end of the second connecting line is connected to a second dust fire extinguisher.

8. The protective shielding cabinet according to claim 1, characterized in that: The device drawer assembly comprises a device drawer and a wiring board. A heat sink is provided at the inner bottom of the device drawer, a handle is provided at the center of the front surface of the device drawer, and a heat sink is provided on the rear surface of the device drawer.

9. The protective shielding cabinet according to claim 8, characterized in that: A wiring slot is provided inside the wiring board, and a plurality of sockets are arranged on one side surface of the wiring board.

10. The protective shielding cabinet according to claim 1, characterized in that: The fixed base assembly includes a fixed base, a fixed groove is opened at the center of the top surface of the fixed base, L-shaped reinforcement plates are respectively provided at the four corners of the fixed groove, and a third hinge and a fourth hinge are respectively provided at the center of the left and right sides of the top of the fixed groove.

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