Electric power cabinet with fire extinguishing function

Abstract

The invention discloses an electric power cabinet with a fire extinguishing function, and relates to the technical field of electric power cabinets with fire extinguishing functions.The electric power cabinet with the fire extinguishing function comprises a bottom plate and a cabinet body, a supporting block is slidably installed on the side wall of the cabinet body, the bottom of the supporting block is fixedly connected with the top of the bottom plate, and a control panel is fixed to the front face of the cabinet body; the side wall of the cabinet body is provided with heat dissipation holes. According to the electric power cabinet with the fire extinguishing function, when a fire occurs in the cabinet body, the temperature in the cabinet body rises rapidly, when a temperature sensor senses the temperature, the temperature sensor sends out an electric signal and transmits the electric signal to a control panel, and the control panel controls an electric push rod and drives a transmission block to move downwards; the push rod can push the power switch to be turned off, the electrical equipment is powered off, and fire disasters in the cabinet body, the electrical equipment is still in a power-on state, the risk of explosion possibly caused by electric arcs is prevented from happening, and workers are prevented from being hurt.

Description

Technical Field

[0001] The present invention relates to the technical field of power cabinets with fire extinguishing functions, and specifically to a power cabinet with a fire extinguishing function. Background Technique

[0002] The electrical appliances in life are constantly increasing, and a lot of manual labor has been replaced by electronic devices. In order to ensure the stability of electricity, power cabinets are often used to protect the components of electrical equipment. A power cabinet is a commonly used electrical infrastructure.

[0003] A power control cabinet with a heat dissipation structure, with the patent publication number CN218124106U, includes a cabinet body, and a connection mechanism is installed at the top of the inner cavity of the cabinet body; in this utility model, through the cooperation between the clamping plate and the fixing block, as well as the jack and the insertion rod, the clamping plate can be placed inside the installation frame through the baffle, and through the cooperation between the rotating column and the sleeve, as well as the movable rod and the spring, the bottom block can drive the clamping rod to move downward and rotate, so that the clamping rod is separated from the positioning ring, and at the same time the spring is compressed. When the spring returns, the clamping rod moves upward until its top end is located inside the clamping hole. At this time, the clamping plate is fixed inside the installation frame, thus facilitating the firm installation of the heat dissipation fan.

[0004] In the above-mentioned power cabinet, when the temperature inside the cabinet is extremely high, it will cause the electrical equipment inside the cabinet to catch fire. Then, when the electrical equipment catches fire, if the electrical equipment is not powered off, a short circuit or arc may cause an explosion, resulting in serious damage to the equipment and casualties, and air continuously enters the cabinet through the heat dissipation holes, and the oxygen will increase the spread of the fire. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a power cabinet with a fire extinguishing function, which solves the problems raised in the above background technique.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A power cabinet with a fire extinguishing function includes a bottom plate and a cabinet body. A support block is slidably installed on the side wall of the cabinet body, and the bottom of the support block is fixedly connected to the top of the bottom plate. A control board is fixed on the front of the cabinet body. Heat dissipation holes are provided on the side wall of the cabinet body. Electrical equipment is detachably installed on the inner wall of the cabinet body. A power switch is provided on the electrical equipment, and the power switch is electrically connected to the electrical equipment. A top plate is fixed on the top of the cabinet body. A protection device for power-off protection is provided in the cabinet body, and an auxiliary device and a prompting device for extracting the gas in the cabinet body are also included; among them, the protection device includes a temperature sensor, an electric push rod, a transmission block, a push rod, a pressing block, an inclined plane block, a sealing block and a transmission plate; the temperature sensor is fixed on the side wall of the cabinet body, the electric push rod is fixed on the top of the cabinet body, the bottom of the electric push rod is fixedly connected to the top of the transmission block, the push rod is slidably installed on the inner wall of the cabinet body, the outer wall of the push rod is fixedly connected to the inner wall of the transmission block, the temperature sensor is electrically connected to the control board, and the control board is electrically connected to the electric push rod. When a fire breaks out inside the cabinet body, the temperature sensor can sense the excessive temperature, so that the temperature sensor can send out an electrical signal, transmit the electrical signal to the control board, so that the control board can control the electric push rod to start, and the electric push rod can push the transmission block to move downward, so that the push rod presses the power switch to cut off the power supply of the electrical equipment.

[0007] According to the above technical solution, the bottom of the transmission block is fixedly connected to the top of the pressing block. The transmission plate penetrates through the side wall of the cabinet body and is slidably connected at the penetration point. The outer wall of the transmission plate is fixedly connected to the outer wall of the sealing block. The side wall of the sealing block is fixedly connected to the side wall of the inclined plane block. When the transmission block moves downward, it will drive the pressing block to move downward, so that the pressing block presses the inclined plane block. The inclined plane block moves toward the heat dissipation hole under the extrusion force, and the sealing block can be driven to extend into the heat dissipation hole through the transmission plate to block the heat dissipation hole.

[0008] According to the above technical solution, a return spring is fixed on the side wall of the cabinet body, and the side of the return spring away from the cabinet body is fixed at the protruding part of the end of the transmission plate.

[0009] According to the above technical solution, the auxiliary device includes an air storage cylinder, an L-shaped connecting block, a hinged rod, a slider, a limiting rod, a piston rod, a piston plate, a transmission spring, a fixed block and a connecting spring; the air storage cylinder is fixed on the top of the cabinet body, the piston plate is slidably installed on the inner wall of the air storage cylinder, the piston rod is fixed on the top of the piston plate, the transmission spring is fixed on the top of the top plate, and the top of the transmission spring is fixed at the protruding part of the top of the piston rod.

[0010] According to the above technical solution, the slider is slidably mounted on the top of the air storage cylinder. The L-shaped connecting block penetrates through the top of the cabinet body and is slidably connected at the penetration point. One end of the hinge rod is hinged to the end of the slider, and the other end of the hinge rod is hinged to the top of the L-shaped connecting block. The limiting rod is fixed on the side wall of the slider. A through hole is formed in the outer wall of the piston rod, and the outer wall of the limiting rod fits with the inner wall of the through hole. When the push rod moves downward to contact the L-shaped connecting block, the push rod will push the L-shaped connecting block downward, causing the L-shaped connecting block to pull the hinge rod. Through the hinge rod, the slider can be pulled to move, so that the limiting rod can be removed from the through hole of the piston rod, releasing the limit on the piston rod. Through the cooperation of the transmission spring, the piston rod drives the piston plate to move upward, and a large amount of gas in the cabinet body is sucked away through the pipeline at the bottom of the air storage cylinder.

[0011] According to the above technical solution, the fixed block is fixed on the outer wall of the L-shaped connecting block. The top of the fixed block is fixedly connected to the bottom of the connecting spring, and the top of the connecting spring is fixed on the inner wall of the cabinet body.

[0012] According to the above technical solution, the prompting device includes a connecting rod, a pressure plate, a pressure sensor and an alarm. The connecting rod is fixed to the bottom of the piston plate. The pressure plate is fixed to the bottom of the connecting rod. The pressure sensor is fixed to the inner wall of the cabinet body. The alarm is fixed to the top of the cabinet body. The pressure sensor is electrically connected to the control board, and the alarm is electrically connected to the control board. When the piston plate moves upward, it can drive the connecting rod to move upward, thereby causing the pressure plate to move upward and squeeze the pressure sensor, causing the pressure sensor to send an electrical signal to the control board, and the control board controls the alarm to perform an alarm operation.

[0013] According to the above technical solution, a moving rod penetrates through the top of the cabinet body and is slidably connected at the penetration point. A moving block is fixed to the bottom of the moving rod. An L-shaped sliding plate penetrates through the side wall of the cabinet body and is slidably connected at the penetration point. One end of the L-shaped sliding plate is hinged to a movable rod. The end of the movable rod away from the L-shaped sliding plate is hinged to the side wall of the moving block. A return spring is fixed to the top of the cabinet body, and the top of the return spring is fixed to the protruding part at the top of the moving rod. A limiting block is fixed to the inner side of the L-shaped sliding plate. A limiting hole is formed in the side wall of the supporting block, and the outer wall of the limiting block fits with the inner wall of the limiting hole. A push spring is fixed to the top of the bottom plate, and the top of the push spring is fixed to the bottom of the cabinet body. When the pressure plate moves upward, the pressure plate will squeeze the moving block, causing the moving block to move upward and squeeze the movable rod, causing the movable rod to rotate at the hinge point. Thus, the movable rod can squeeze the L-shaped sliding plate to move away from the cabinet body, so that the limiting block can be removed from the limiting hole, releasing the limit on the L-shaped sliding plate. Since the push spring is in a compressed state, the push spring can push the cabinet body upward, and the cabinet body can be lifted.

[0014] The present invention provides an electric cabinet with a fire extinguishing function, having the following beneficial effects:

[0015] (1) By providing a protection device in the present invention, when a fire occurs inside the cabinet, the temperature inside the cabinet will rise rapidly. When the temperature sensor senses the temperature, it will send an electrical signal, transmit the electrical signal to the control board, and the control board controls the electric push rod to drive the transmission block to move downward. The push rod can push the power switch to close, cut off the power supply to the electrical equipment, prevent a fire from occurring inside the cabinet while the electrical equipment is still energized, and avoid the risk of explosion caused by electric arcs, which may harm the staff. Moreover, through the cooperation of the extrusion block and the inclined plane block, the sealing block can be extended into the heat dissipation holes, thereby cutting off the entry of external oxygen into the cabinet and preventing the external oxygen from entering the cabinet to fuel the fire and cause the fire to spread rapidly.

[0016] (2) By providing an auxiliary device in the present invention, when the push rod moves downward to contact the L-shaped connecting block, the push rod squeezes the L-shaped connecting block, driving the L-shaped connecting block to move downward. Through the hinge rod, the slider can be pulled to move, and the limiting rod can be removed from the through hole of the piston rod, releasing the limit on the piston rod. Through the cooperation of the transmission spring, the piston rod can drive the piston plate to move upward, and the piston plate can suck the air in the cabinet into the air storage cylinder, thereby reducing the oxygen in the cabinet and reducing the combustion of the fire.

[0017] (3) By providing a prompting device in the present invention, when the piston plate moves upward, it can drive the connecting rod to move upward, squeeze the pressure sensor through the pressure plate, and the pressure sensor sends an electrical signal under the pressure. The electrical signal is transmitted to the control board, and the control board controls the alarm to start, and the alarm gives an alarm to prompt personnel to extinguish the fire. Moreover, through the cooperation of the moving block, the movable rod and the L-shaped sliding plate, the limiting block is removed from the limiting hole of the supporting block, releasing the limit on the L-shaped sliding plate. Through the cooperation of the pushing spring, the cabinet can be lifted. When there are combustibles at the bottom of the electric cabinet, by lifting the electric cabinet, the combustibles near the bottom of the electric cabinet can be prevented from being ignited, which can prevent the occurrence of a fire. And if the combustibles near the bottom of the electric cabinet are ignited, it will be inconvenient for personnel to approach the electric cabinet to extinguish the fire when they come to extinguish the fire, reducing the fire extinguishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 It is a schematic diagram of a part of the internal structure of the present invention;

[0021] Figure 4 Schematic diagram of the protective device structure of the present invention;

[0022] Figure 5 Schematic diagram of the partial structure of the present invention;

[0023] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of structure A;

[0024] Figure 7 For the present invention Figure 3 Enlarged schematic diagram of structure B;

[0025] Figure 8 Schematic diagram of the internal structure of the front of the present invention.

[0026] In the figure: 1, bottom plate; 2, cabinet body; 3, support block; 4, heat dissipation hole; 5, top plate; 6, control board; 7, electrical equipment; 8, power switch; 91, temperature sensor; 92, electric push rod; 93, transmission block; 94, push rod; 95, extrusion block; 96, transmission plate; 97, sealing block; 98, inclined plane block; 99, return spring; 101, L-shaped connecting block; 102, air storage cylinder; 103, piston rod; 104, transmission spring; 105, piston plate; 106, slider; 107, limiting rod; 108, hinge rod; 109, fixed block; 110, connecting spring; 111, connecting rod; 112, pressure sensor; 113, alarm; 114, moving rod; 115, return spring; 116, moving block; 117, L-shaped sliding plate; 118, movable rod; 119, pressure plate; 120, limiting block; 121, push spring. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1 - 8, an embodiment of the present invention is: a power cabinet with a fire extinguishing function, including a bottom plate 1 and a cabinet body 2. A support block 3 is slidably installed on the side wall of the cabinet body 2, and the bottom of the support block 3 is fixedly connected to the top of the bottom plate 1. A control panel 6 is fixed on the front of the cabinet body 2. Heat dissipation holes 4 are provided on the side wall of the cabinet body 2. Through the setting of the heat dissipation holes 4, heat dissipation can be carried out inside the cabinet body 2. An electrical device 7 is detachably installed on the inner wall of the cabinet body 2. A power switch 8 is provided on the electrical device 7, and the power switch 8 is electrically connected to the electrical device 7. A top plate 5 is fixed on the top of the cabinet body 2. A protection device for power-off protection is provided inside the cabinet body 2; wherein, the protection device includes a temperature sensor 91, an electric push rod 92, a transmission block 93, a push rod 94, a pressing block 95, an inclined plane block 98, a sealing block 97 and a transmission plate 96; the temperature sensor 91 is fixed on the side wall of the cabinet body 2, the electric push rod 92 is fixed on the top of the cabinet body 2, and the bottom of the electric push rod 92 is fixedly connected to the top of the transmission block 93. The push rod 94 is slidably installed on the inner wall of the cabinet body 2, and the outer wall of the push rod 94 is fixedly connected to the inner wall of the transmission block 93. The temperature sensor 91 is electrically connected to the control panel 6, and the control panel 6 is electrically connected to the electric push rod 92. The bottom of the transmission block 93 is fixedly connected to the top of the pressing block 95. The transmission plate 96 penetrates through the side wall of the cabinet body 2 and is slidably connected at the penetration. The outer wall of the transmission plate 96 is fixedly connected to the outer wall of the sealing block 97. The side wall of the sealing block 97 is fixedly connected to the side wall of the inclined plane block 98. A return spring 99 is fixed on the side wall of the cabinet body 2, and the side away from the cabinet body 2 of the return spring 99 is fixed at the protruding part of the end of the transmission plate 96.

[0029] By setting the temperature sensor 91, when the temperature sensor 91 senses the temperature, it will cause the temperature sensor 91 to emit an electrical signal, transmit the electrical signal to the control panel 6, and cause the control panel 6 to control the electric push rod 92 to drive the transmission block 93 to move downward, so that the push rod 94 can push the power switch 8 to close, cut off the power supply to the electrical device 7, prevent a fire from occurring inside the cabinet body 2, and prevent the risk of explosion that may be caused by the electrical device 7 still being in the powered-on state, which may cause harm to the staff.

[0030] By setting the top of the inclined plane block 98 as an inclined plane, when the pressing block 95 moves downward, it will cause the pressing block 95 to press the inclined plane of the inclined plane block 98, causing the inclined plane block 98 to move closer to the heat dissipation hole 4 under the extrusion force, which can drive the sealing block 97 to extend into the heat dissipation hole 4, and the size of the sealing block 97 matches the size of the heat dissipation hole 4, so as to cut off the entry of oxygen from the outside into the cabinet body 2 and prevent the oxygen from the outside entering the cabinet body 2 from fueling the fire and causing the fire to spread rapidly.

[0031] During the operation of this embodiment: When a fire breaks out inside the cabinet body 2, the temperature inside the cabinet body 2 will rise rapidly, causing the temperature sensor 91 to sense the high temperature and transmit an electrical signal to the control board 6, enabling the control board 6 to control the start of the electric push rod 92. The electric push rod 92 can drive the transmission block 93 to move downward. When the transmission block 93 moves downward, it can drive the push rod 94 to move downward, causing the push rod 94 to squeeze the power switch 8, making the power switch 8 rotate, thus achieving the effect of cutting off the power supply to the electrical equipment 7 and preventing the electrical equipment 7 from remaining energized when a fire breaks out inside the cabinet body 2, reducing the risk of explosion caused by electric arcs. Moreover, when the transmission block 93 moves downward, it can drive the extrusion block 95 to move downward, causing the bottom of the extrusion block 95 to squeeze the inclined surface of the inclined surface block 98. The inclined surface block 98 moves towards the heat dissipation hole 4 under the extrusion force, enabling the inclined surface block 98 to drive the transmission plate 96 to move, moving the transmission plate 96 out of the cabinet body 2, stretching the reset spring 99. When the transmission plate 96 moves, the sealing block 97 can extend into the heat dissipation hole 4, thus preventing a large amount of external oxygen from entering the cabinet body 2. And when the control board 6 controls the electric push rod 92 to move upward to drive the transmission block 93 and the push rod 94 to move upward for reset, the transmission block 93 will drive the extrusion block 95 to move upward without squeezing the inclined surface of the inclined surface block 98. Since the reset spring 99 is in a stretched state, the reset spring 99 can drive the transmission plate 96 to reset, moving the sealing block 97 out of the heat dissipation hole 4 and unblocking the heat dissipation hole 4 for subsequent normal use.

[0032] Please refer to Figures 1 - 8, on the basis of the above embodiments, in another embodiment of the present invention, it further includes an auxiliary device and a prompting device for extracting the gas in the cabinet 2. The auxiliary device includes an air storage cylinder 102, an L-shaped connecting block 101, a hinge rod 108, a slider 106, a limiting rod 107, a piston rod 103, a piston plate 105, a transmission spring 104, a fixing block 109 and a connecting spring 110; the air storage cylinder 102 is fixed on the top of the cabinet 2, a pipeline is fixed at the bottom of the air storage cylinder 102, and the pipeline communicates with the inside of the cabinet 2 through the top of the cabinet 2. The piston plate 105 is slidably installed on the inner wall of the air storage cylinder 102, the piston rod 103 is fixed on the top of the piston plate 105, the piston rod 103 penetrates through the top of the air storage cylinder 102, and the penetration part is slidably connected. The transmission spring 104 is fixed on the top of the top plate 5, and the top of the transmission spring 104 is fixed at the protruding part on the top of the piston rod 103. The slider 106 is slidably installed on the top of the air storage cylinder 102. The L-shaped connecting block 101 penetrates through the top of the cabinet 2, and the penetration part is slidably connected. One end of the hinge rod 108 is hinged to the end of the slider 106, and the other end of the hinge rod 108 is hinged to the top of the L-shaped connecting block 101. The limiting rod 107 is fixed on the side wall of the slider 106. A through hole is formed in the outer wall of the piston rod 103, and the outer wall of the limiting rod 107 fits with the inner wall of the through hole. The fixing block 109 is fixed on the outer wall of the L-shaped connecting block 101, the top of the fixing block 109 is fixedly connected with the bottom of the connecting spring 110, and the top of the connecting spring 110 is fixed on the inner wall of the cabinet 2.

[0033] When the limiting rod 107 is removed from the through hole, the limitation on the piston rod 103 is released. Since the transmission spring 104 is in a compressed state in the initial state, the transmission spring 104 can drive the piston rod 103 to move upward.

[0034] By setting the piston plate 105 to move upward inside the air storage cylinder 102, the pipeline at the bottom of the air storage cylinder 102 can suck the air in the cabinet 2 into the air storage cylinder 102, thereby reducing the oxygen in the cabinet 2 and reducing the combustion of the fire.

[0035] The prompting device includes a connecting rod 111, a pressure plate 119, a pressure sensor 112 and an alarm 113; the connecting rod 111 is fixed to the bottom of the piston plate 105, the pressure plate 119 is fixed to the bottom of the connecting rod 111, the pressure sensor 112 is fixed to the inner wall of the cabinet body 2, the alarm 113 is fixed to the top of the cabinet body 2, the pressure sensor 112 is electrically connected to the control board 6, the alarm 113 is electrically connected to the control board 6, a moving rod 114 penetrates through the top of the cabinet body 2 and is slidably connected at the penetration, a moving block 116 is fixed to the bottom of the moving rod 114, an L-shaped sliding plate 117 penetrates through the side wall of the cabinet body 2 and is slidably connected at the penetration, one end of an active rod 118 is hinged to the end of the L-shaped sliding plate 117, the other end of the active rod 118 away from the L-shaped sliding plate 117 is hinged to the side wall of the moving block 116, a return spring 115 is fixed to the top of the cabinet body 2, the top of the return spring 115 is fixed to the protruding part at the top of the moving rod 114, a limiting block 120 is fixed to the inner side of the L-shaped sliding plate 117, a limiting hole is formed in the side wall of the support block 3, the outer wall of the limiting block 120 fits with the inner wall of the limiting hole, a pushing spring 121 is fixed to the top of the bottom plate 1, and the top of the pushing spring 121 is fixed to the bottom of the cabinet body 2.

[0036] When the piston plate 105 moves upward, it can drive the connecting rod 111 to move upward, squeeze the pressure sensor 112 through the pressure plate 119, make the pressure sensor 112 receive pressure and emit an electrical signal, transmit the electrical signal to the control board 6, the control board 6 controls the alarm 113 to start, and makes the alarm 113 give an alarm to prompt personnel to extinguish the fire.

[0037] Through the cooperation of the moving block 116, the active rod 118 and the L-shaped sliding plate 117, the limiting block 120 is moved out of the limiting hole of the support block 3 to release the limitation on the L-shaped sliding plate 117. Through the cooperation of the pushing spring 121, the cabinet body 2 can be lifted. When there are combustibles at the bottom of the power cabinet, by lifting the power cabinet, the combustibles near the bottom of the power cabinet can be prevented from being ignited, and the occurrence of a fire can be prevented. And when the combustibles near the bottom of the power cabinet are ignited, when personnel come to extinguish the fire, it is not convenient to approach the power cabinet to extinguish the fire, reducing the fire extinguishing efficiency.

[0038] When this embodiment is working: When the push rod 94 moves downward and contacts the L-shaped connecting block 101, and when the push rod 94 continues to move downward, it will cause the push rod 94 to squeeze the L-shaped connecting block 101 to move downward. When the L-shaped connecting block 101 moves downward, it can drive the fixed block 109 to move downward, stretch the connecting spring 110, and the L-shaped connecting block 101 can drive the articulated rod 108 to be pulled, causing the articulated rod 108 to rotate at the hinge, so that the articulated rod 108 pulls the slider 106 closer to the electric push rod 92, making the slider 106 move away from the piston rod 103. When the slider 106 moves away from the piston rod 103, the slider 106 can drive the limiting rod 107 to move out of the through hole of the piston rod 103, releasing the limit on the piston rod 103. Because the transmission spring 104 is in a compressed state, the transmission spring 104 can drive the piston rod 103 to move upward. When the piston rod 103 moves upward, it can drive the piston plate 105 to move upward. When the piston plate 105 moves upward, through the pipeline at the bottom of the air storage cylinder 102, the pipeline can adsorb the gas in the cabinet 2 into the air storage cylinder 102, thereby reducing the oxygen in the cabinet 2 and preventing the spread of fire. When the piston plate 105 moves upward, it can drive the connecting rod 111 to move upward. When the connecting rod 111 moves upward, it can drive the pressure plate 119 to move upward. When the pressure plate 119 moves upward and contacts the pressure sensor 112, the pressure plate 119 will squeeze the pressure sensor 112, causing the pressure sensor 112 to sense the pressure, thereby releasing an electrical signal. The pressure sensor 112 transmits the electrical signal to the control board 6, and the control board 6 can control the alarm 113 to start, so that the alarm 113 alarms to prompt personnel to carry out fire extinguishing operations. And when the pressure plate 119 moves upward and contacts the moving block 116, the pressure plate 119 will squeeze the moving block 116, causing the moving rod 114 carried by the moving block 116 to move upward, stretching the return spring 115. When the moving block 116 moves upward, the moving block 116 squeezes the movable rod 118, causing the movable rod 118 to rotate at the hinge, so that the movable rod 118 squeezes the L-shaped sliding plate 117 to move out of the cabinet 2, thereby being able to drive the limiting block 120 to move out of the limiting hole opened on the support block 3, releasing the limit on the cabinet 2. Because the push spring 121 is in a compressed state, the push spring 121 can push the cabinet 2 to be lifted.

[0039] When the piston rod 103 is pushed downward to drive the piston plate 105 to move downward for resetting, the limiting rod 107 is aligned with the through hole. And when the push rod 94 moves upward without squeezing the L-shaped connecting block 101, since the connecting spring 110 is in a stretched state, the connecting spring 110 can drive the fixed block 109 to move upward, and the fixed block 109 drives the L-shaped connecting block 101 to reset. When the L-shaped connecting block 101 moves upward, it will squeeze the hinge rod 108, causing the hinge rod 108 to rotate at the hinge, so that the hinge rod 108 can push the slider 106 closer to the piston rod 103, enabling the limiting rod 107 to extend into the through hole to limit the piston rod 103, and enabling the air storage cylinder 102 to perform the next air intake operation. And when the piston rod 103 drives the piston plate 105 to move downward, the connecting rod 111 will move downward, and the connecting rod 111 drives the pressure plate 119 to move downward without squeezing the moving block 116. Since the return spring 115 is in a stretched state, there will be a downward force on the moving rod 114. Through the moving block 116 and the movable rod 118, the L-shaped slide plate 117 drives the limiting block 120 to abut against the support block 3. When it is necessary to reset the cabinet body 2, by pressing the cabinet body 2 downward to compress the push spring 121. When the cabinet body 2 moves downward until the limiting block 120 is aligned with the limiting hole of the support block 3, since the return spring 115 is in a stretched state, the limiting block 120 can extend into the limiting hole to fix the reset cabinet body 2.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric power cabinet with fire extinguishing function, comprising a base plate (1) and a cabinet body (2), characterized in that: A support block (3) is slidably mounted on the side wall of the cabinet (2), the bottom of the support block (3) is fixedly connected to the top of the bottom plate (1), a control panel (6) is fixed on the front of the cabinet (2), a heat dissipation hole (4) is provided on the side wall of the cabinet (2), an electrical device (7) is detachably mounted on the inner wall of the cabinet (2), a power switch (8) is provided on the electrical device (7), the power switch (8) is electrically connected to the electrical device (7), a top plate (5) is fixed on the top of the cabinet (2), a protective device for power-off protection is provided in the cabinet (2), and an auxiliary device and a prompting device for extracting gas in the cabinet (2) are also included; The protective device comprises a temperature sensor (91), an electric push rod (92), a transmission block (93), a push rod (94), an extrusion block (95), a ramp block (98), a sealing block (97) and a transmission plate (96); the temperature sensor (91) is fixed on the side wall of the cabinet (2), the electric push rod (92) is fixed on the top of the cabinet (2), the bottom of the electric push rod (92) is fixedly connected to the top of the transmission block (93), the push rod (94) is slidably mounted on the inner wall of the cabinet (2), the outer wall of the push rod (94) is fixedly connected to the inner wall of the transmission block (93), the temperature sensor (91) is electrically connected to the control panel (6), and the control panel (6) is electrically connected to the electric push rod (92).

2. The power cabinet with fire extinguishing function according to claim 1, characterized in that: The bottom of the transmission block (93) is fixedly connected to the top of the extrusion block (95), the transmission plate (96) penetrates the side wall of the cabinet (2) and is slidably connected at the penetration point, the outer wall of the transmission plate (96) is fixedly connected to the outer wall of the sealing block (97), and the side wall of the sealing block (97) is fixedly connected to the side wall of the inclined surface block (98).

3. The power cabinet with fire extinguishing function according to claim 2 is characterized in that: A return spring (99) is fixed to the side wall of the cabinet (2), and the side of the return spring (99) away from the cabinet (2) is fixed to the protrusion at the end of the transmission plate (96).

4. The power cabinet with fire extinguishing function according to claim 1, characterized in that: The auxiliary device comprises an air cylinder (102), an L-shaped connecting block (101), a hinge rod (108), a sliding block (106), a limiting rod (107), a piston rod (103), a piston plate (105), a transmission spring (104), a fixing block (109) and a connecting spring (110); the air cylinder (102) is fixed on the top of the cabinet (2), the piston plate (105) is slidably mounted on the inner wall of the air cylinder (102), the piston rod (103) is fixed on the top of the piston plate (105), the transmission spring (104) is fixed on the top of the top plate (5), and the top of the transmission spring (104) is fixed on the top protrusion of the piston rod (103).

5. The power cabinet with fire extinguishing function according to claim 4 is characterized in that: The slider (106) is slidably mounted on the top of the gas storage cylinder (102); the L-shaped connecting block (101) passes through the top of the cabinet (2) and is slidably connected at the penetration point; one end of the hinged rod (108) is hinged to the end of the slider (106); the other end of the hinged rod (108) is hinged to the top of the L-shaped connecting block (101); the limit rod (107) is fixed to the side wall of the slider (106); a through hole is provided on the outer wall of the piston rod (103); and the outer wall of the limit rod (107) is in contact with the inner wall of the through hole.

6. The power cabinet with fire extinguishing function according to claim 5, characterized in that: The fixing block (109) is fixed to the outer wall of the L-shaped connecting block (101), the top of the fixing block (109) is fixedly connected to the bottom of the connecting spring (110), and the top of the connecting spring (110) is fixed to the inner wall of the cabinet (2).

7. The power cabinet with fire extinguishing function according to claim 1, characterized in that: The prompting device comprises a connecting rod (111), a pressure plate (119), a pressure sensor (112) and an alarm (113); the connecting rod (111) is fixed to the bottom of the piston plate (105), the pressure plate (119) is fixed to the bottom of the connecting rod (111), the pressure sensor (112) is fixed to the inner wall of the cabinet (2), the alarm (113) is fixed to the top of the cabinet (2), the pressure sensor (112) is electrically connected to the control panel (6), and the alarm (113) is electrically connected to the control panel (6).

8. The power cabinet with fire extinguishing function according to claim 7, characterized in that: A moving rod (114) passes through the top of the cabinet (2) and is slidably connected at the penetration point; a moving block (116) is fixed to the bottom of the moving rod (114); an L-shaped slide plate (117) passes through the side wall of the cabinet (2) and is slidably connected at the penetration point; a movable rod (118) is hinged at the end of the L-shaped slide plate (117); an end of the movable rod (118) away from the L-shaped slide plate (117) is hinged to the side wall of the moving block (116); A return spring (115) is fixed to the top of the moving rod (114), the top of the return spring (115) is fixed to the top protrusion of the moving rod (114), a limit block (120) is fixed to the inner side of the L-shaped slide plate (117), a limit hole is provided on the side wall of the support block (3), the outer wall of the limit block (120) is fitted with the inner wall of the limit hole, and a push spring (121) is fixed to the top of the bottom plate (1), the top of the push spring (121) is fixed to the bottom of the cabinet (2).

Images