An electrical cabinet based on energy-saving fire detection

Abstract

The present invention discloses an electrical cabinet based on energy-saving fire detection, comprising: a cabinet body, a container with an elevated bottom and a cabinet door at the front; a rotating drum, two rotating drums that penetrate the upper and lower parts of the cabinet body, each rotatably arranged on the upper and lower parts of the cabinet body via a thin-walled bearing ring; blades, multiple blades distributed circumferentially within the rotating drum, with their ends near the center of the circle connected to a central axis; two brackets, fixedly mounted on the upper and lower parts of the cabinet body, with a motor fixed at the center, the output shaft of the motor connected to the corresponding central axis; a torsion assembly, arranged on the inner walls of both sides of the cabinet body, connected to the two rotating drums via a pull rod, and capable of sealing the blades in the rotating drums by rotation. Compared with the prior art, the present invention can isolate the air through an active device when a fire occurs in the electrical cabinet, or can also isolate the air at high temperatures when the circuit is damaged, to prevent the spread of fire.

Description

Technical Field

[0001] The present invention relates to the technical field of fire detection devices, in particular to an electrical cabinet based on energy-saving fire detection. Background Art

[0002] Electrical cabinets are made of steel and are used to protect the normal operation of components. They are widely used in the chemical industry, environmental protection industry, power systems, metallurgical systems, industry, nuclear power industry, fire safety monitoring, transportation industry, and more. Because electrical cabinets are connected to many electronic components, they generate heat during operation. If the electronic components inside are damaged or short-circuited, they may cause fires. A large number of fires caused by circuits originate in electrical cabinets. Existing electrical cabinets with fire detection functions mainly use sensors installed inside to monitor temperature, smoke, and other information to issue an alarm in the event of a fire. However, they require waiting for maintenance personnel to extinguish the fire and cannot actively isolate the fire source. If personnel do not take timely action, the fire can still spread. Active fire isolation and extinguishing devices installed in electrical cabinets are easily damaged by high temperatures.

[0003] Therefore, it is necessary to provide an electrical cabinet based on energy-saving fire detection to solve the problems raised in the above background technology. Summary of the Invention

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an electrical cabinet based on energy-saving fire detection, comprising: a cabinet body, a container with an elevated bottom and a cabinet door on the front; a rotating drum, two rotating drums that pass through the upper and lower parts are rotatably arranged on the upper and lower parts of the cabinet body through thin-walled bearing rings; blades, a plurality of blades are circumferentially distributed in the rotating drum, and their ends close to the center of the circle are commonly connected to the central axis; brackets, two brackets are respectively fixedly mounted on the upper and lower parts of the outer wall of the cabinet, a motor is fixed at the center, and the output shaft of the motor is connected to the corresponding central axis; a torsion assembly is arranged on the inner walls on both sides of the cabinet body, connected to the two rotating drums through a pull rod, and can seal the blades in the rotating drum by rotation.

[0005] Furthermore, preferably, fire detection sensors are installed in the cabinet, including but not limited to smoke sensors, temperature sensors, and light sensors.

[0006] Furthermore, as a preference, each of the blades is rotatably connected between the rotating drum and the central axis with the radial direction of the rotating drum as the rotating axis.

[0007] Furthermore, as a preference, the rotating shaft of the blade passes through the outer wall of the drum, and a V-shaped connecting rod is connected to the end thereof, wherein the V-shaped connecting rod is composed of two centrally hinged connecting rods, one end of which is fixedly connected to the rotating shaft of the blade, and the other end is hinged to the collar;

[0008] The sleeve ring is slidably mounted on the outer wall above the rotating drum.

[0009] Furthermore, as a preference, a shift ring is rotatably mounted on the outer wall of the collar.

[0010] Furthermore, preferably, both sides of the shift ring are connected to a pull rod via a universal joint, and the pull rod is connected to the torsion assembly.

[0011] Furthermore, preferably, the torsion assembly includes a turntable, which is rotatably connected to the center of the inner walls on both sides of the cabinet, and the edges on both sides of the turntable are connected to the pull rods on the same side of the upper and lower sides through universal joint 2.

[0012] Furthermore, preferably, a servo telescopic rod is hinged to the edge of the turntable, and a cylinder of the servo telescopic rod is hinged to the side wall of the cabinet.

[0013] Furthermore, as a preference, the turntable and the servo telescopic rod are connected via a latch, the latch being hinged to the turntable, a slot being fixed to the end of the piston rod of the servo telescopic rod, the latch being inserted into the slot to be telescopically connected thereto;

[0014] A heat-melt limit block is fixed in the slot, and the heat-melt limit block can limit the sliding between the pin and the slot.

[0015] Furthermore, as a preference, a spring is connected between the outer wall of the turntable and the inner wall of the cabinet, and the spring provides an elastic force to cause the turntable to rotate the blades in a horizontal direction.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, when the fire detection sensor detects a fire in the electrical cabinet, the servo telescopic rod drives the turntable to rotate, so that the pull rod belt ring slides to rotate each blade to the horizontal position, forming a closed environment in the cabinet to isolate the air and prevent the fire from spreading.

[0018] In the present invention, when the hot melt limit block melts at high temperature and loses the position restriction on the pin, even if the servo telescopic rod is not driven, the turntable rotates under the elastic force of the spring and then rotates the blades to the horizontal to seal the cabinet, preventing the servo telescopic rod from being unable to rotate due to damage to the fire detection sensor or circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of an electrical cabinet based on energy-saving fire detection;

[0020] Figure 2 Schematic diagram of the structure of the drum;

[0021] Figure 3 is a structural diagram of the torsion component;

[0022] In the figure: 1. Cabinet; 2. Rotating drum; 21. Thin-walled bearing ring; 22. Center shaft; 23. V-type connecting rod; 24. Ring; 25. Ring; 3. Blade; 4. Bracket; 5. Motor; 6. Pull rod; 61. Universal joint 1; 7. Torsion assembly; 71. Turntable; 72. Universal joint 2; 73. Spring; 74. Latch; 75. Servo telescopic rod; 76. Slot; 77. Hot melt limit block. DETAILED DESCRIPTION

[0023] See also Figure 1 In an embodiment of the present invention, an electrical cabinet based on energy-saving fire detection includes a cabinet body 1, a container with an elevated bottom and a cabinet door on the front;

[0024] The two rotating drums 2 are rotatably arranged on the upper and lower sides of the cabinet 1 through thin-walled bearing rings 21;

[0025] Blades 3, multiple blades 3 are distributed circumferentially within the drum 2, and their ends close to the center are commonly connected to the central shaft 22;

[0026] Brackets 4, two brackets 4 are fixedly mounted on the upper and lower sides of the outer wall of the cabinet 1, and a motor 5 is fixed at the center thereof, and the output shaft of the motor 5 is connected to the corresponding central shaft 22;

[0027] The torsion assembly 7 is arranged on the inner walls of both sides of the cabinet 1 and is connected to the two rotating drums 2 through the pull rod 6. It can seal the blades 3 in the rotating drum 2 by rotating.

[0028] In this embodiment, fire detection sensors are installed in the cabinet 1, including but not limited to smoke sensors, temperature sensors, and light sensors.

[0029] See also Figure 2 In this embodiment, each blade 3 is rotatably connected between the drum 2 and the central axis 22 with the radial direction of the drum 2 as the rotation axis;

[0030] Moreover, when each blade 3 rotates to a horizontal position, it can fit together to form a closed plane.

[0031] In this embodiment, the rotating shaft of the blade 3 passes through the outer wall of the drum 2, and a V-shaped connecting rod 23 is connected to the end. The V-shaped connecting rod 23 is composed of two centrally hinged connecting rods, one end of which is fixedly connected to the rotating shaft of the blade 3, and the other end is hinged to the collar 24;

[0032] The collar 24 is slidably mounted on the outer wall of the drum 2 .

[0033] In this embodiment, the outer wall of the ring 24 is rotatably provided with a shift ring 25, that is, the shift ring 25 can pull the ring 24 to slide by moving up and down during the rotation of the drum 2 and the blades 3 along the central axis 22, thereby synchronously adjusting the inclination angle of each blade 3.

[0034] In this embodiment, both sides of the shift ring 25 are connected to the pull rod 6 through a universal joint 61, and the pull rod 6 is connected to the torsion assembly 7.

[0035] See also Figure 3 In this embodiment, the torsion assembly 7 includes a turntable 71, which is rotatably connected to the center of the inner walls on both sides of the cabinet 1. The edges on both sides of the turntable 71 are connected to the pull rod 6 on the same side above and below through a universal joint 72.

[0036] In this embodiment, a servo telescopic rod 75 is hinged to the edge of the turntable 71, and the cylinder of the servo telescopic rod 75 is hinged to the side wall of the cabinet 1;

[0037] The servo telescopic rod 75 is controlled by the feedback information of the fire detection sensor. When the fire detection sensor detects a fire in the electrical cabinet, the servo telescopic rod 75 drives the turntable 71 to rotate, so that the pull rod 6 with the collar 24 slides to rotate each blade 3 to a horizontal position, so that a closed environment is formed in the cabinet body 1 to isolate the air and prevent the fire from spreading.

[0038] In this embodiment, the turntable 71 and the servo telescopic rod 75 are connected by a latch 74, which is hinged to the turntable 71. A slot 76 is fixed to the end of the piston rod of the servo telescopic rod 75, and the latch 74 is inserted into the slot 76 to be telescopically connected thereto.

[0039] A heat-melt limit block 77 is fixed in the slot 76 , and the heat-melt limit block 77 can limit the sliding between the latch 74 and the slot 76 ;

[0040] The material of the hot-melt limit block 77 in this embodiment is preferably paraffin.

[0041] In this embodiment, a spring 73 is connected between the outer wall of the turntable 71 and the inner wall of the cabinet 1, and the spring 73 provides an elastic force to rotate the turntable 71 toward the horizontal direction.

[0042] That is to say, when the hot melt limit block 77 melts at high temperature and loses the position restriction on the pin 74, even if the servo telescopic rod 75 is not driven, the turntable 71 rotates under the elastic force of the spring 73, and then the blade 3 rotates to the horizontal to seal the cabinet 1, preventing the servo telescopic rod 75 from being unable to rotate due to damage to the fire detection sensor or circuit.

[0043] In specific implementation, when the electrical cabinet is in operation, the cabinet door is closed, and the upper and lower motors 5 drive the rotating drum 2 and each blade 3 rotated to a certain angle to rotate to generate airflow for heat dissipation, and the airflow is made to flow from bottom to top to facilitate the discharge of hot air;

[0044] When the fire detection sensor detects a fire in the electrical cabinet, the servo telescopic rod 75 drives the turntable 71 to rotate, so that the pull rod 6 with the collar 24 slides to rotate each blade 3 to a horizontal position, forming a closed environment in the cabinet 1 to isolate the air and prevent the fire from spreading;

[0045] When the temperature inside the electrical cabinet reaches the melting point of the heat-melt limit block 77, the heat-melt limit block 77 melts and loses the position restriction on the pin 74. Even if the servo telescopic rod 75 is not driven, the turntable 71 rotates under the elastic force of the spring 73, and then the blade 3 rotates to the horizontal to seal the cabinet body 1, preventing the fire detection sensor or circuit from being damaged and the servo telescopic rod 75 from being unable to rotate.

[0046] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An electrical cabinet based on energy-saving fire detection, characterized in that, include, The cabinet (1) is a container with an elevated bottom and a cabinet door at the front; Rotating drums (2), two rotating drums (2) that penetrate each other from top to bottom are rotatably arranged on the upper and lower surfaces of the cabinet (1) through thin-walled bearing rings (21); Blades (3), wherein a plurality of blades (3) are circumferentially distributed within the drum (2), and one end of the blades close to the center of the circle is connected to the central shaft (22); Brackets (4), two brackets (4) are fixedly mounted on the upper and lower sides of the outer wall of the cabinet (1), respectively, and a motor (5) is fixed at the center thereof, and the output shaft of the motor (5) is connected to the corresponding central shaft (22); The torsion assembly (7) is arranged on the inner walls of both sides of the cabinet (1), is connected to the two rotating drums (2) via the pull rod (6), and can seal the blades (3) in the rotating drums (2) by rotating; Each blade (3) is rotatably connected between the rotating drum (2) and the central axis (22) with the radial direction of the rotating drum (2) as the rotating axis; The rotating shaft of the blade (3) passes through the outer wall of the rotating drum (2), and a V-shaped connecting rod (23) is connected to the end thereof. The V-shaped connecting rod (23) is composed of two centrally hinged connecting rods, one end of which is fixedly connected to the rotating shaft of the blade (3), and the other end is hinged to the collar (24); The collar (24) is slidably mounted on the outer wall above the rotating drum (2); The outer wall of the sleeve ring (24) is rotatably provided with a shift ring (25); Both sides of the shift ring (25) are connected to the pull rod (6) via a universal joint (61), and the pull rod (6) is connected to the torsion assembly (7); The torsion assembly (7) includes a turntable (71) rotatably connected to the center of the inner walls on both sides of the cabinet (1), and the edges on both sides of the turntable (71) are connected to the pull rods (6) on the same side of the upper and lower sides through universal joint 2 (72).

2. The electrical cabinet based on energy-saving fire detection according to claim 1, characterized in that: Fire detection sensors are installed in the cabinet (1), including but not limited to smoke sensors, temperature sensors, and light sensors.

3. The electrical cabinet based on energy-saving fire detection according to claim 1, characterized in that: A servo telescopic rod (75) is hinged to the edge of the turntable (71), and a cylinder of the servo telescopic rod (75) is hinged to the side wall of the cabinet (1).

4. The electrical cabinet based on energy-saving fire detection according to claim 3, characterized in that: The turntable (71) and the servo telescopic rod (75) are connected via a latch (74), the latch (74) being hinged to the turntable (71), a slot (76) being fixed to the end of the piston rod of the servo telescopic rod (75), the latch (74) being inserted into the slot (76) and being telescopically connected thereto; A heat-melt limit block (77) is fixed in the slot (76), and the heat-melt limit block (77) can limit the sliding between the latch (74) and the slot (76).

5. The electrical cabinet based on energy-saving fire detection according to claim 1, characterized in that: A spring (73) is connected between the outer wall of the turntable (71) and the inner wall of the cabinet (1), and the spring (73) provides an elastic force that causes the turntable (71) to rotate in a horizontal direction so that the blades (3) rotate.

Images