Intelligent monitoring type low-voltage cabinet and method

Abstract

The invention discloses an intelligent monitoring type low-voltage cabinet and method, and relates to the technical field of low-voltage cabinets, the intelligent monitoring type low-voltage cabinet comprises a cabinet body, the front side of the cabinet body is provided with a cabinet door, the left and right sides of the cabinet body are provided with heat dissipation ports, and the inner side of the cabinet body is fixedly connected with a smoke sensor. The inner side of the cabinet body is provided with a fire extinguishing unit for extinguishing fire of internal electronic devices and a sealing unit for sealing a heat dissipation opening, the left side of the cabinet body is fixedly connected with a fire extinguishing tank, a dust collector and a protective cover, the fire extinguishing unit comprises two side plates, and the two side plates are both fixedly connected to the inner wall of the cabinet body. The intelligent monitoring type low-voltage cabinet is provided with a first guide plate, a first guide block, a lifting plate, an electric push rod, an L-shaped block, a rotating rod, a mounting plate and a fire extinguishing nozzle, descending of the fire extinguishing nozzle is conveniently controlled, the fire extinguishing range is increased, smoke dust in the cabinet body is conveniently absorbed by an absorption head through a second fixing pipe and the absorption head, and the practicability is high. And the residual smoke dust is prevented from influencing the use of electronic devices in the cabinet body.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage cabinets, and in particular to an intelligent monitoring low-voltage cabinet and a method. Background Art

[0002] Low-voltage cabinets are crucial components of power distribution systems, primarily used to distribute, control, and manage low-voltage electrical energy (typically voltages below AC 1000V or DC 1500V). When monitoring equipment is in use, low-voltage cabinets are required to distribute power to the equipment.

[0003] After searching, the Chinese patent with application number "CN202022286308.0" is specifically an intelligent monitoring high and low voltage distribution cabinet, including a cabinet and a fire extinguisher. The fire extinguisher is located on the upper surface of the cabinet. The surface of the cabinet is provided with an operation panel, and the surface of the operation panel is provided with a handle. The lower end of the operation panel is provided with a cabinet door, and the bottom of the cabinet is provided with a bracket. The right surface of the cabinet is provided with a wire inlet, and the left end of the wire inlet is provided with a heat dissipation port.

[0004] The above patent requires the use of a fire extinguisher to extinguish the fire inside the cabinet when using a low-pressure cabinet. During the fire extinguishing process, the fire extinguisher is located on the top of the cabinet and sprays fire extinguishing gas to extinguish the fire. However, the low-pressure cabinet is high. When the fire occurs in the lower area, the gas sprayed from the top cannot fully and timely extinguish the electronic devices in the cabinet, making the electronic devices inside the cabinet easily damaged. In addition, when a fire occurs, the heat dissipation port of the cabinet can easily allow external oxygen to enter the cabinet. The standard heat dissipation holes (total area ≥ 15% of the cabinet surface area) can form a chimney effect of 0.2-0.5m / s during a fire. For every 1% increase in oxygen concentration, the combustion rate increases by 12%-15%, exacerbating the intensity of the fire and increasing the load of the fire extinguisher. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an intelligent monitoring low-voltage cabinet and method, which solves the problem that a fire extinguisher cannot extinguish the fire in time when a fire occurs inside the cabinet.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: An intelligent monitoring low-voltage cabinet comprises a cabinet body, a cabinet door is provided on the front side of the cabinet body, heat dissipation vents are provided on the left and right sides of the cabinet body, a smoke sensor is fixedly connected to the inner side of the cabinet body, a fire extinguishing unit for extinguishing internal electronic components and a sealing unit for sealing the heat dissipation vents are provided on the inner side of the cabinet body, a fire extinguishing tank, a vacuum cleaner and a protective cover are fixedly connected to the left side of the cabinet body, the fire extinguishing unit comprises two side panels, both of which are fixedly connected to the inner wall of the cabinet body, a guide plate 1 is fixedly connected to the right side of the side panel, a guide block 1 is slidably connected to the inner side of the guide plate 1, a lifting plate is fixedly connected to the right side of the guide block 1, a safety component is provided on the right side of the lifting plate, a lifting block is fixedly connected to the left side of the lifting plate, and an electric push rod is fixedly connected between the lifting block and the cabinet body.

[0007] Preferably, the safety component includes two L-shaped blocks, both of which are fixedly connected to the upper and lower sides of the lifting plate, a rotating rod is rotatably connected between the two L-shaped blocks, a rotating block is fixedly connected to the outer side of the rotating rod, a mounting plate is fixedly connected to the front side of the rotating block, two mounting blocks 1 are fixedly connected to the right side of the mounting plate, a fixed pipe 1 is fixedly connected between the two mounting blocks 1, a plurality of fire extinguishing nozzles are fixedly connected to the right side of the fixed pipe 1, and a connecting pipe 1 is fixedly connected between the fire extinguishing tank and the fixed pipe 1.

[0008] The upper end of the L-shaped block is fixedly connected to the upper side of the L-shaped block and is fixedly connected to the gear, and the upper side of the L-shaped block is provided with a slide groove, the inner side of the slide groove is slidably connected to the slider, the upper side of the slider is fixedly connected to the toothed plate meshing with the gear, the front side of the slider is fixedly connected to the connecting block 1, the outer side of the connecting block 1 is rotatably connected to the inclined plate 1, the upper side of the L-shaped block is fixedly connected to the telescopic rod 1 and the spring 1, the upper end of the telescopic rod 1 is fixedly connected to the contact block, the lower side of the contact block is fixedly connected to the connecting block 2, the connecting block 2 is rotatably connected to the inclined plate 1, the front side of the guide plate 1 is fixedly connected to the fixed block, and the lower side of the fixed block is fixedly connected to the contact rod.

[0009] Preferably, two mounting blocks 2 are fixedly connected to the upper and lower sides of the mounting plate, a fixed tube 2 is fixedly connected between the two mounting blocks 2, a plurality of absorption heads are fixedly connected to the right side of the fixed tube 2, a U-shaped tube is fixedly connected between the two fixed tubes 2, and a connecting tube 2 is fixedly connected between the vacuum cleaner and the fixed tube 2.

[0010] Preferably, the sealing unit includes a guide plate 2, which is fixedly connected to the left and right inner walls of the cabinet, and the outer side of the guide plate 2 is slidably connected to two guide blocks 2, the rear sides of the two guide blocks 2 are fixedly connected to a sealing plate, the outer sides of the two guide blocks 2 are rotatably connected to an inclined plate 2, the outer side of the inclined plate 2 is rotatably connected to a connecting block 3, the front side of the connecting block 3 is fixedly connected to a pressing block, the outer side of the guide plate 2 is fixedly connected to a side block 1, a telescopic rod 2 and a spring 3 are fixedly connected between the side block 1 and the pressing block, and a U-shaped plate is fixedly connected between the two pressing blocks.

[0011] The left side of the lifting block is fixedly connected to the control block, and the lower end of the pressure rod passes through the lower side of the air box, and a delivery pipe is fixedly connected between the air box and the air inlet pipe.

[0012] A method for using an intelligent monitoring low-voltage cabinet includes the following steps: S1. When a fire occurs, the smoke sensor senses the smoke, and the external controller controls the valve on the fire extinguisher to start, and at the same time controls the electric push rod to drive the fire extinguishing nozzle to descend. The fire extinguishing nozzle sprays fire extinguishing gas to extinguish the fire in the electronic device; S2. Simultaneously control the upper and lower sealing plates to move closer to each other, so that the sealing plates seal the heat dissipation openings; S3. After extinguishing the fire for a while, start the vacuum cleaner and let the suction head absorb the high-temperature gas and smoke in the cabinet.

[0013] Beneficial effects

[0014] The present invention provides an intelligent monitoring low-voltage cabinet and method. Compared with the prior art, it has the following advantages: (1) The intelligent monitoring low-voltage cabinet is provided with a guide plate 1, a guide block 1, a lifting plate, an electric push rod, an L-shaped block, a rotating rod, a mounting plate, and a fire sprinkler, which facilitates the control of the fire sprinkler to descend and increase the fire extinguishing range. The second fixed pipe and the absorption head facilitate the absorption head to absorb the smoke and dust in the cabinet, thereby preventing the residual smoke and dust from affecting the use of electronic devices in the cabinet.

[0015] (2) The intelligent monitoring low-voltage cabinet is provided with a sealing plate, a second guide plate, a second guide block, a second inclined plate, a pressing block, a third spring, a limit block, a fixing cylinder and an air box. When extinguishing a fire, the sealing plate is controlled to seal the heat dissipation port to prevent external oxygen from entering the cabinet and aggravating the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention without the protective shell; Figure 3 It is a three-dimensional structural diagram of the fire extinguishing unit in the present invention; Figure 4 This is a three-dimensional structural diagram of the fire extinguishing unit of the present invention from another perspective; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 for Figure 4 Enlarged view of point B in the middle; Figure 7 It is a cross-sectional perspective structural diagram of the fire extinguishing unit in the present invention; Figure 8 3D diagram of the sealing unit in the present invention; Figure 9 for Figure 8 Enlarged view of point C in the middle; Figure 10 It is a partial three-dimensional structural diagram of the sealing unit in the present invention.

[0017] In the figure: 1. Cabinet; 2. Cabinet door; 3. Heat dissipation vent; 4. Fire extinguishing unit; 5. Smoke sensor; 6. Sealing unit; 7. Fire extinguisher; 8. Vacuum cleaner; 9. Connecting pipe 1; 10. Connecting pipe 2; 11. Protective cover; 41. Side panel; 42. Guide plate 1; 43. Guide block 1; 44. Lifting plate; 45. Lifting block; 46. Electric linear actuator; 47. Safety component 471. L-shaped block; 472. Rotating rod; 473. Rotating block; 474. Mounting plate; 475. Mounting block 1; 476. Fixed tube 1; 477. Gear; 478. Slide; 479. Slider; 4710. Tooth plate; 4711. Connecting block 1; 4712. Inclined plate 1; 4713. Connecting block 2; 4714. Contact block; 4715. Telescopic rod 1; 4716. Spring 1; 4717. Contact rod; 4718. Fixed block; 4719. Sprinkler; 4720. Mounting block 2; 4721. Fixed tube 2; 4722. Absorber head; 4723. U-shaped tube; 4724. Connecting plate; 4725. Gas box; 4726. Piston plate; 4727. Pressure rod; 4728. Spring 2; 4729. Control block; 61. Guide plate 2; 62. Guide block 2; 63. Sealing plate; 64. Inclined plate 2; 65. Connecting block 3; 66. Pressing block; 67. Side block 1; 68. Telescopic rod 2; 69. Spring 3; 610. Side block 2; 611. Front block; 612. Control lever; 613. Limit block; 614. Fixed cylinder; 615. Toggle plate; 616. Inlet pipe; 617. Delivery pipe; 618. Outlet pipe; 619. U-shaped plate. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example 1 See also Figure 1-Figure 7 The present invention provides a technical solution: an intelligent monitoring low-voltage cabinet, comprising a cabinet body 1, a cabinet door 2 is provided on the front side of the cabinet body 1, heat dissipation vents 3 are provided on both the left and right sides of the cabinet body 1, a smoke sensor 5 is fixedly connected to the inner side of the cabinet body 1, a fire extinguishing unit 4 for extinguishing fires of internal electronic components and a sealing unit 6 for sealing the heat dissipation vents 3 are provided on the inner side of the cabinet body 1, a fire extinguishing tank 7, a vacuum cleaner 8 and a protective cover 11 are fixedly connected to the left side of the cabinet body 1, the fire extinguishing unit 4 comprises two side panels 41, both side panels 41 are fixedly connected to the inner wall of the cabinet body 1, a guide plate 42 is fixedly connected to the right side of the side panel 41, and the guide plate A guide block 43 is slidably connected to the inner side of the guide block 43, and a lifting plate 44 is fixedly connected to the right side of the lifting plate 44. A safety component 47 is provided on the right side of the lifting plate 44, and a lifting block 45 is fixedly connected to the left side of the lifting plate 44. An electric push rod 46 is fixedly connected between the lifting block 45 and the cabinet 1, and valves are provided on the outsides of the connecting pipe 1 9 and the connecting pipe 2 10. When extinguishing a fire inside the cabinet 1, the electric push rod 46 is controlled to drive the lifting block 45 to descend, and the lifting block 45 drives the lifting plate 44 to descend, and the lifting plate 44 drives the fire extinguishing nozzle 4719 to descend, so as to increase the fire extinguishing range of the fire extinguishing nozzle 4719.

[0020] The safety component 47 includes two L-shaped blocks 471, and the two L-shaped blocks 471 are fixedly connected to the upper and lower sides of the lifting plate 44. A rotating rod 472 is rotatably connected between the two L-shaped blocks 471, and a rotating block 473 is fixedly connected to the outer side of the rotating rod 472. The front side of the rotating block 473 is fixedly connected to a mounting plate 474. Two mounting blocks 1 475 are fixedly connected to the right side of the mounting plate 474. A fixed pipe 1 476 is fixedly connected between the two mounting blocks 1 475. A plurality of fire extinguishing nozzles 4719 are fixedly connected to the right side of the fixed pipe 1 476. A connecting pipe 1 is fixedly connected between the fire extinguishing tank 7 and the fixed pipe 1 476. 9. The upper end of the rotating rod 472 passes through the upper side of the L-shaped block 471 and is fixedly connected to the gear 477. The upper side of the L-shaped block 471 is provided with a slide groove 478. The inner side of the slide groove 478 is slidably connected to a slider 479. The upper side of the slider 479 is fixedly connected to a toothed plate 4710 that meshes with the gear 477. The front side of the slider 479 is fixedly connected to a connecting block 4711. The outer side of the connecting block 4711 is rotatably connected to an inclined plate 4712. The upper side of the L-shaped block 471 is fixedly connected to a telescopic rod 4715 and a spring 4716. The upper end of the telescopic rod 4715 is fixedly connected to the contact block 471. 4. The lower side of contact block 4714 is fixedly connected to connecting block 2 4713, which is rotatably connected to inclined plate 1 4712. The front side of guide plate 1 42 is fixedly connected to fixing block 4718, and the lower side of fixing block 4718 is fixedly connected to contact rod 4717. When extinguishing a fire, lifting plate 44 descends, driving L-shaped block 471 downward, and L-shaped block 471 drives contact block 4714 to separate from contact rod 4717. At this time, spring 1 4716 is compressed, driving contact block 4714 upward, and contact block 4714 drives inclined plate 1 4712 to rotate. Inclined plate 4712 drives slider 479 to move forward, slider 479 drives tooth plate 4710 to move, tooth plate 4710 drives gear 477 to rotate, gear 477 drives rotating rod 472 to rotate, rotating rod 472 drives rotating block 473 to rotate, rotating block 473 drives mounting plate 474 to rotate, mounting plate 474 drives fire sprinkler 4719 on fixed pipe 1 476 to rotate, so that fire sprinkler 4719 is directed toward electronic devices, making it convenient for fire sprinkler 4719 to directly spray fire extinguishing gas toward electronic devices, thereby facilitating fire extinguishing. After the fire extinguishing is completed, the L-shaped block 471 is controlled to rise, so that the tooth plate 4710 moves in the opposite direction.

[0021] Two mounting blocks 4720 are fixedly connected to the upper and lower sides of the mounting plate 474, a fixed tube 4721 is fixedly connected between the two mounting blocks 4720, a plurality of absorption heads 4722 are fixedly connected to the right side of the fixed tube 4721, a U-shaped tube 4723 is fixedly connected between the two fixed tubes 4721, and a connecting tube 10 is fixedly connected between the vacuum cleaner 8 and the fixed tube 4721. When the fire is extinguished, the vacuum cleaner 8 is started to make the absorption heads 4722 on the upper and lower sides absorb the smoke and dust in the cabinet 1, so as to facilitate the treatment of high-temperature smoke and dust and avoid the residual smoke and dust affecting the use of electronic devices.

[0022] Example 2 Based on the first embodiment, Figures 8-10As shown, the sealing unit 6 includes a guide plate 2 61, which is fixedly connected to the left and right inner walls of the cabinet 1, and two guide blocks 2 62 are slidably connected to the outer side of the guide plate 2 61, and the rear sides of the two guide blocks 2 62 are fixedly connected to a sealing plate 63, and the outer sides of the two guide blocks 2 62 are rotatably connected to an inclined plate 2 64, and the outer side of the inclined plate 2 64 is rotatably connected to a connecting block 3 65, and the front side of the connecting block 3 65 is fixedly connected to a pressing block 66, and the outer side of the guide plate 2 61 is fixedly connected to a side block 1 67, and a telescopic rod 2 68 and a spring 3 69 are fixedly connected between the side block 1 67 and the pressing block 66, and a U-shaped plate 619 is fixedly connected between the two pressing blocks 66, and the right inner wall of the cabinet 1 is fixedly connected to a side block 2 610, and the side block The front side of the second 610 is fixedly connected to two front blocks 611, and a control rod 612 is rotatably connected between the two front blocks 611. The outer side of the control rod 612 is fixedly connected to a limit block 613, and the limit block 613 is located in front of the pressing block 66. The outer side of the left end of the control rod 612 is fixedly connected to a plurality of toggle plates 615. The left side of the front block 611 is fixedly connected to a fixed cylinder 614, and the lower side of the fixed cylinder 614 is fixedly connected to an air inlet pipe 616, and the upper side of the fixed cylinder 614 is fixedly connected to an air outlet pipe 618. A connecting plate 4724 is fixedly connected between the two side plates 41, and the lower side of the connecting plate 4724 is fixedly connected to an air box 4725. The inner side of the air box 4725 is provided with a piston plate 4726. The piston plate 4726 is fixedly connected to the piston plate 4726. The lower side of 4726 is fixedly connected to a pressure rod 4727, a spring 2 4728 is fixedly connected between the lower side of the piston plate 4726 and the gas box 4725, and a control block 4729 is fixedly connected to the left side of the lifting block 45. The lower end of the pressure rod 4727 passes through the lower side of the gas box 4725, and a delivery pipe 617 is fixedly connected between the gas box 4725 and the intake pipe 616. When extinguishing a fire, the lifting block 45 drives the control block 4729 to descend, and the control block 4729 is separated from the pressure rod 4727. When the spring 2 4728 is compressed, the spring 2 4728 drives the piston plate 4726 to descend, and the piston plate 4726 pushes the gas in the gas box 4725 out and delivers the gas to the gas box 4725 through the delivery pipe 617 and the intake pipe 616. It is sent to the fixed cylinder 614, and the gas pushes the toggle plate 615 to rotate, and the toggle plate 615 drives the control rod 612 to rotate, and the control rod 612 drives the limit block 613 to rotate, and the limit block 613 is separated from the pressing block 66. The spring three 69 is in a compressed state. Under the action of the spring three 69, the spring three 69 drives the pressing block 66 to move forward, and the pressing block 66 drives the inclined plate two 64 to rotate. The inclined plates two 64 on both sides are symmetrically distributed. The inclined plate two 64 drives the sealing plate 63 on the guide block two 62 to move, and the sealing plates 63 on both sides are close to each other, which makes it convenient for the sealing plate 63 to seal the heat dissipation port 3, preventing external oxygen from entering the cabinet 1 and exacerbating the fire. At the same time, the heat dissipation ports 3 on the left and right sides are sealed through the U-shaped plate 619.

[0023] A method for using an intelligent monitoring low-voltage cabinet includes the following steps: S1. When a fire occurs, the smoke sensor 5 senses the smoke, and the external controller controls the valve on the fire extinguisher tank 7 to start, and at the same time controls the electric push rod 46 to drive the fire extinguishing nozzle 4719 to descend. The fire extinguishing nozzle 4719 sprays fire extinguishing gas to extinguish the fire in the electronic device, and controls the fire extinguishing nozzle 4719 to spray fire extinguishing gas toward the electronic device.

[0024] S2. Simultaneously control the upper and lower sealing plates 63 to move closer to each other, so that the sealing plates 63 seal the heat dissipation port 3; S3. After extinguishing the fire for a period of time, the vacuum cleaner 8 is started, and the absorption head 4722 absorbs the high-temperature gas and smoke in the cabinet 1.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent monitoring type low-voltage cabinet, comprising a cabinet body (1), a cabinet door (2) being provided on the front side of the cabinet body (1), and heat dissipation openings (3) being provided on both the left and right sides of the cabinet body (1), characterized in that: A smoke sensor (5) is fixedly connected to the inner side of the cabinet (1). A fire extinguishing unit (4) for extinguishing fires of internal electronic components and a sealing unit (6) for sealing the heat dissipation port (3) are provided on the inner side of the cabinet (1). A fire extinguishing tank (7), a vacuum cleaner (8) and a protective cover (11) are fixedly connected to the left side of the cabinet (1). The fire extinguishing unit (4) comprises two side panels (41). Both side panels (41) are fixedly connected to the inner wall of the cabinet (1). A guide plate 1 (42) is fixedly connected to the right side of the side panel (41). A guide block 1 (43) is slidably connected to the inner side of the guide plate 1 (42). A lifting plate (44) is fixedly connected to the right side of the guide block 1 (43). A safety component (47) is provided on the right side of the lifting plate (44). A lifting block (45) is fixedly connected to the left side of the lifting plate (44). An electric push rod (46) is fixedly connected between the lifting block (45) and the cabinet (1).

2. The intelligent monitoring low-voltage cabinet according to claim 1, characterized in that: The safety component (47) includes two L-shaped blocks (471), and the two L-shaped blocks (471) are fixedly connected to the upper and lower sides of the lifting plate (44). A rotating rod (472) is rotatably connected between the two L-shaped blocks (471), a rotating block (473) is fixedly connected to the outer side of the rotating rod (472), and a mounting plate (474) is fixedly connected to the front side of the rotating block (473). Two mounting blocks (475) are fixedly connected to the right side of the mounting plate (474), a fixed pipe (476) is fixedly connected between the two mounting blocks (475), a plurality of fire extinguishing nozzles (4719) are fixedly connected to the right side of the fixed pipe (476), and a connecting pipe (9) is fixedly connected between the fire extinguishing tank (7) and the fixed pipe (476).

3. The intelligent monitoring low-voltage cabinet according to claim 2, characterized in that: The upper end of the rotating rod (472) passes through the upper side of the L-shaped block (471) and is fixedly connected to the gear (477). The upper side of the L-shaped block (471) is provided with a sliding groove (478). The inner side of the sliding groove (478) is slidably connected to a slider (479). The upper side of the slider (479) is fixedly connected to a tooth plate (4710) meshing with the gear (477). The front side of the slider (479) is fixedly connected to a connecting block 1 (4711). The outer side of the connecting block 1 (4711) is rotatably connected to an inclined plate 1 (4712). ), the upper side of the L-shaped block (471) is fixedly connected to a telescopic rod 1 (4715) and a spring 1 (4716), the upper end of the telescopic rod 1 (4715) is fixedly connected to a contact block (4714), the lower side of the contact block (4714) is fixedly connected to a connecting block 2 (4713), the connecting block 2 (4713) is rotatably connected to the inclined plate 1 (4712), the front side of the guide plate 1 (42) is fixedly connected to a fixed block (4718), and the lower side of the fixed block (4718) is fixedly connected to the contact rod (4717).

4. The intelligent monitoring low-voltage cabinet according to claim 3, characterized in that: Two mounting blocks (4720) are fixedly connected to the upper and lower sides of the mounting plate (474); a fixed pipe (4721) is fixedly connected between the two mounting blocks (4720); a plurality of absorption heads (4722) are fixedly connected to the right side of the fixed pipe (4721); a U-shaped pipe (4723) is fixedly connected between the two fixed pipes (4721); and a connecting pipe (10) is fixedly connected between the vacuum cleaner (8) and the fixed pipe (4721).

5. The intelligent monitoring low-voltage cabinet according to claim 4, characterized in that: The sealing unit (6) includes a guide plate 2 (61), the guide plate 2 (61) is fixedly connected to the left and right inner walls of the cabinet (1), the outer side of the guide plate 2 (61) is slidably connected to two guide blocks 2 (62), the rear sides of the two guide blocks 2 (62) are fixedly connected to a sealing plate (63), the outer sides of the two guide blocks 2 (62) are rotatably connected to an inclined plate 2 (64), the outer side of the inclined plate 2 (64) is rotatably connected to a connecting block 3 (65), the front side of the connecting block 3 (65) is fixedly connected to a pressing block (66), the outer side of the guide plate 2 (61) is fixedly connected to a side block 1 (67), a telescopic rod 2 (68) and a spring 3 (69) are fixedly connected between the side block 1 (67) and the pressing block (66), and a U-shaped plate (619) is fixedly connected between the two pressing blocks (66).

6. The intelligent monitoring low-voltage cabinet according to claim 5, characterized in that: The right inner wall of the cabinet (1) is fixedly connected to a side block 2 (610), the front side of the side block 2 (610) is fixedly connected to two front blocks (611), a control rod (612) is rotatably connected between the two front blocks (611), the outer side of the control rod (612) is fixedly connected to a limit block (613), the limit block (613) is located in front of the pressing block (66), the outer side of the left end of the control rod (612) is fixedly connected to a plurality of toggle plates (615), the left side of the front block (611) is fixedly connected to a fixed cylinder (614), the lower side of the fixed cylinder (614) is fixedly connected to an air inlet pipe (616), and the upper side of the fixed cylinder (614) is fixedly connected to an air outlet pipe (618). A connecting plate (4724) is fixedly connected between the two side plates (41), an air box (4725) is fixedly connected to the lower side of the connecting plate (4724), a piston plate (4726) is provided on the inner side of the air box (4725), a pressure rod (4727) is fixedly connected to the lower side of the piston plate (4726), a spring 2 (4728) is fixedly connected between the lower side of the piston plate (4726) and the air box (4725), a control block (4729) is fixedly connected to the left side of the lifting block (45), the lower end of the pressure rod (4727) passes through the lower side of the air box (4725), and a delivery pipe (617) is fixedly connected between the air box (4725) and the air inlet pipe (616).

7. A method for using an intelligent monitoring low-voltage cabinet, according to claim 6, characterized in that: The following steps are involved: S1. When a fire occurs, the smoke sensor (5) senses the smoke, and the external controller controls the valve on the fire extinguisher (7) to start, and at the same time controls the electric push rod (46) to drive the fire extinguishing nozzle (4719) to descend, and the fire extinguishing nozzle (4719) sprays fire extinguishing gas to extinguish the fire in the electronic device; S2, simultaneously controlling the upper and lower sealing plates (63) to move closer to each other, so that the sealing plates (63) seal the heat dissipation opening (3); S3. After extinguishing the fire for a period of time, the vacuum cleaner (8) is started, and the absorption head (4722) absorbs the high-temperature gas and smoke in the cabinet (1).

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