Intelligent protection device for power supply access

Abstract

The invention relates to the technical field of intelligent protection, and discloses a power supply access intelligent protection device which comprises a power supply cabinet, insulation foot stands are fixedly installed on the left side and the right side of the lower end face of the power supply cabinet, and the power supply access intelligent protection device further comprises a heat dissipation blocking net which is installed on the rear end face of the power supply cabinet in a sliding mode; the installation plate is installed on the inner side wall of the power supply cabinet in a sliding mode, a cooling fan and a cleaning mechanism are fixedly installed on the side wall of the installation plate, and the cleaning mechanism is arranged on the side wall of the power supply cabinet. According to the invention, through the arrangement of the cleaning mechanism, a heat dissipation fan can be rapidly taken out, a worker can conveniently and rapidly clean dust in the power supply cabinet, through the arrangement of the adjusting mechanism, the distance between the adjusting plates can be changed, electrical elements with different volumes can be conveniently installed, and through the arrangement of the emergency mechanism, the heat dissipation fan can be rapidly taken out. Dry powder can be sprayed when electrical elements work abnormally, fire spreading is eradicated within a very short time, and the use safety of the whole power supply cabinet is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent protection, in particular to a power supply access intelligent protection device. Background Art

[0002] New energy, also known as unconventional energy, refers to various forms of energy other than traditional energy, and also refers to energy that has just begun to be developed or is being actively studied and is yet to be promoted, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy and nuclear fusion energy. The power grid system is a whole composed of substations and transmission and distribution lines of various voltages in the power system. It includes three units: substation, transmission and distribution. The task of the power grid system is to transmit and distribute electrical energy and change the voltage. When connecting new energy power sources to the power grid system, it is necessary to provide them with certain safety protection to ensure that the new energy power sources can operate normally. At present, many devices have the situation of supplying power to external devices. External devices often have short circuits or overloads, which causes the power supply current to increase sharply and exceed the maximum power supply capacity of the equipment power supply. If no protective measures are taken, the circuit will continue to overload and output, and electronic components will burn out due to overheating, and in severe cases, fires will occur.

[0003] After searching, a new energy power supply access to the power grid system safety protection device proposed in patent publication number CN116053963A includes a protection box shell and a dust removal unit; the protection box shell: a box door is hinged at the open front side by a hinge, a mounting frame is provided on the inner wall of the rear side of the protection box shell, a wiring pipe is provided at the wiring port at the lower end of the left side of the protection box shell, an evenly distributed air inlet is provided at the lower end of the left side of the protection box shell, exhaust fans are provided in the heat dissipation ports symmetrically arranged up and down on the right side of the protection box shell, and microporous plates are provided at the inner right end of the air inlet; dust removal unit: arranged in the lower left corner of the inside of the protection box shell; the new energy power supply access to the power grid system safety protection device can provide effective heat dissipation while providing closed protection for the new energy power supply, prevent the new energy power supply from shutting down due to excessively high ambient temperature, and has a certain leakage protection function, which can avoid electric shock when people touch the protection box shell, and the functions are comprehensive and practical.

[0004] In the above patent documents, heat dissipation in the cabinet is achieved by providing heat dissipation ports and exhaust fans, and dust removal units are provided to clean the dust in the cabinet. However, in actual use, since the exhaust fan is provided inside the cabinet, the exhaust fan is also the area with the most serious dust accumulation. At this time, workers need to completely dismantle the internal components of the cabinet to clean it, which is cumbersome. At the same time, the above equipment lacks countermeasures when the internal components of the cabinet are disconnected and catch fire, which poses certain safety hazards. Therefore, there is an urgent need for an intelligent power supply access protection device. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The object of the present invention is to provide an intelligent power access protection device to solve the problems raised in the above background technology that it is difficult to clean the exhaust fan and there is a lack of countermeasures when the internal components of the cabinet are short-circuited and catch fire.

[0007] (II) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solutions: A power access intelligent protection device comprises a power cabinet, wherein insulating feet are fixedly mounted on the left and right sides of the lower end surface of the power cabinet, and a sealed cabinet door is rotatably mounted on the front end surface of the power cabinet through hinges, and further comprises: A heat dissipation screen, which is slidably mounted on the rear end of the power cabinet and is used to isolate external dust; A mounting plate, the mounting plate being slidably mounted on the inner side wall of the power cabinet, and a heat dissipation fan being fixedly mounted on the side wall of the mounting plate; A cleaning mechanism, the cleaning mechanism is arranged on the side wall of the power cabinet, and the cleaning mechanism is used to store the heat dissipation fan; An adjustment plate, the adjustment plate is arranged in the inner cavity of the power cabinet, and electrical components are installed on the side walls of the adjustment plate; An adjustment mechanism, the adjustment mechanism is arranged in the inner cavity of the adjustment plate, and the adjustment mechanism is used to change the spacing of the adjustment plates; The emergency mechanism is arranged in the inner cavity of the power cabinet and is used to spray dry powder into the power cabinet when the electrical components are abnormal.

[0009] Preferably, the cleaning mechanism includes a positioning column rotatably mounted on the upper and lower side walls of the power cabinet, a first gear is fixedly mounted on the upper portion of the side wall of the positioning column, a connecting plate is fixedly mounted on the side wall of the heat dissipation screen, a first rack is fixedly mounted on the side wall of the connecting plate, and the first rack is meshingly connected to the first gear.

[0010] Preferably, a second gear is fixedly installed on the lower part of the side wall of the positioning column, a second rack is fixedly installed on the side wall of the mounting plate, the second gear is meshingly connected with the second rack, an electric push rod is fixedly installed on the top and bottom surfaces of the inner cavity of the power supply cabinet, and the piston rod end of the electric push rod is fixedly connected to the mounting plate.

[0011] Preferably, the heat dissipation screens are provided with two groups, an upper group and an lower group, a holding handle is fixedly installed between the upper and lower groups of the heat dissipation screens, and the heat dissipation screens are in the shape of hollow horizontal strips.

[0012] Preferably, the adjustment mechanism includes a bidirectional screw rotatably installed on the left side of the inner cavity of the power supply cabinet, a positioning rod is fixedly installed on the right side of the inner cavity of the power supply cabinet, the adjustment plates on the upper and lower sides are threadedly installed on the side walls of the bidirectional screw, the adjustment plates on the upper and lower sides are slidably installed on the side walls of the positioning rod, and the upper and lower threads of the bidirectional screw are in opposite directions.

[0013] Preferably, a vertical plate is fixedly installed on the upper end surface of the power supply cabinet, an adjusting worm is rotatably installed between the two vertical plates, an adjusting motor is fixedly installed on the upper end surface of the power supply cabinet through a frame, the output shaft end of the adjusting motor is fixedly connected to the adjusting worm, an adjusting worm wheel is fixedly installed on the upper part of the side wall of the bidirectional screw, and the adjusting worm wheel is meshingly connected to the adjusting worm.

[0014] Preferably, mounting holes are provided on the side walls of the adjustment plate, and there are several groups of mounting holes. The adjustment plate located in the middle is fixedly mounted on the side wall of the positioning rod, and the adjustment plate is rotatably mounted on the side wall of the bidirectional screw.

[0015] Preferably, the emergency mechanism includes ear plates fixedly mounted on the left and right side walls of the adjustment plate, positioning blocks are fixedly mounted on the front and rear sides of the inner side walls of the ear plates, a threaded column is rotatably mounted between the positioning blocks on the front and rear sides, and a movable sprayer is threadedly mounted on the side walls of the threaded column.

[0016] Preferably, an emergency motor is fixedly mounted on the side wall of the ear plate via a frame, the output shaft end of the emergency motor is fixedly connected to the threaded column, a dry powder cartridge is fixedly mounted on the outer side wall of the ear plate, the dry powder cartridge is connected to the movable sprayer via a connecting pipe, a sliding groove is provided on the side wall of the ear plate, and the connecting pipe slides in the inner cavity of the sliding groove.

[0017] Preferably, a temperature sensor is fixedly mounted on the inner wall of the power cabinet, the temperature sensor is electrically connected to the emergency motor and the movable sprinkler, and the model of the temperature sensor is ATE400.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The invention starts the electric push rod to extend the piston rod end. At this time, the mounting plate will drive the heat dissipation fan to continuously move toward the outside of the inner cavity of the power cabinet. As the position of the mounting plate continues to change, the mounting plate will drive the second rack to rotate the second gear. Since the second gear and the first gear are fixedly connected to the positioning column, the positioning column will drive the first gear to rotate. Through the meshing connection between the first rack and the first gear, the first gear will drive the first rack and the connecting plate to slide the heat dissipation screen. Finally, the heat dissipation screen can slide to the rightmost side wall of the power cabinet. At the same time, the mounting plate will also drive the heat dissipation fan to slide out of the power cabinet. At this time, the workers can quickly and easily clean the dust on the heat dissipation fan and the inside of the power cabinet, thereby greatly improving the workers' labor efficiency.

[0019] 2. In the present invention, when the operating temperature of the electrical components in the power cabinet is abnormal, the temperature sensor can detect the abnormal temperature of the environment, trigger an alarm and start the emergency motor to run. The output shaft end of the emergency motor is fixedly connected to the threaded column, and the threaded column will be rotated. Since the movable sprayer is threadedly connected to the threaded column, the movable sprayer slides on the side wall of the ear plate. At this time, under the limiting effect of the ear plate on the movable sprayer, the movable sprayer can move back and forth on the side wall of the threaded column. Synchronously starting the movable sprayer can make the dry powder in the dry powder cartridge pass through the connecting pipe and be sprayed out from the movable sprayer. Spraying the dry powder on the burning electrical components can prevent the entry of oxygen around the electrical components in the first time, thereby achieving the function of fire extinguishing and avoiding the spread of fire, thereby greatly improving the safety performance of the entire device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a power supply access intelligent protection device according to the present invention; Figure 2 This is a schematic diagram of the front view of the split structure of a power supply access intelligent protection device of the present invention; Figure 3 A schematic diagram of a rear view split structure of a power supply connected to an intelligent protection device according to the present invention; Figure 4 It is a partial cross-sectional structural schematic diagram of a power supply access intelligent protection device of the present invention; Figure 5 A power supply connected to an intelligent protection device of the present invention Figure 4 A schematic diagram of the enlarged structure of the middle A area; Figure 6 The present invention is a schematic diagram showing the structure of an adjustment board for connecting a power source to an intelligent protection device.

[0021] In the figure: 1. power cabinet; 11. temperature sensor; 2. insulating foot; 3. heat dissipation screen; 31. grip handle; 4. mounting plate; 41. heat dissipation fan; 5. cleaning mechanism; 51. positioning column; 52. first gear; 53. connecting plate; 54. first rack; 55. second gear; 56. second rack; 57. electric push rod; 6. adjusting plate; 61. mounting hole; 7. adjusting mechanism; 71. bidirectional screw; 72. positioning rod; 73. vertical plate; 74. adjusting worm; 75. adjusting motor; 76. adjusting worm wheel; 8. emergency mechanism; 81. ear plate; 811. sliding groove; 82. positioning block; 83. threaded column; 84. movable sprayer; 85. emergency motor; 86. dry powder cartridge; 87. connecting pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 6 , the present invention provides a technical solution for a power supply access intelligent protection device: A power access intelligent protection device includes a power cabinet 1, insulating feet 2 are fixedly installed on the left and right sides of the lower end surface of the power cabinet 1, and a sealed cabinet door is rotatably installed on the front end surface of the power cabinet 1 through hinges, and also includes: The heat dissipation screen 3 is slidably mounted on the rear end surface of the power cabinet 1, and the heat dissipation screen 3 is used to isolate external dust; A mounting plate 4, the mounting plate 4 is slidably mounted on the inner side wall of the power cabinet 1, and a heat dissipation fan 41 is fixedly mounted on the side wall of the mounting plate 4; A cleaning mechanism 5, which is disposed on a side wall of the power cabinet 1 and is used to store the heat dissipation fan 41; An adjustment plate 6, the adjustment plate 6 is arranged in the inner cavity of the power cabinet 1, and electrical components are installed on the side walls of the adjustment plate 6; An adjusting mechanism 7, the adjusting mechanism 7 is arranged in the inner cavity of the adjusting plate 6, and the adjusting mechanism 7 is used to change the spacing of the adjusting plate 6; The emergency mechanism 8 is arranged in the inner cavity of the power cabinet 1 and is used to spray dry powder into the power cabinet 1 when the electrical components are abnormal.

[0024] Further, the cleaning mechanism 5 includes a positioning column 51 rotatably mounted on the upper and lower side walls of the power cabinet 1, a first gear 52 is fixedly mounted on the upper part of the side wall of the positioning column 51, a connecting plate 53 is fixedly mounted on the side wall of the heat dissipation screen 3, a first rack 54 is fixedly mounted on the side wall of the connecting plate 53, and the first rack 54 is meshed and connected with the first gear 52; A second gear 55 is fixedly installed on the lower part of the side wall of the positioning column 51, and a second rack 56 is fixedly installed on the side wall of the mounting plate 4. The second gear 55 is meshed with the second rack 56. An electric push rod 57 is fixedly installed on the top and bottom surfaces of the inner cavity of the power cabinet 1, and the piston rod end of the electric push rod 57 is fixedly connected to the mounting plate 4. The heat dissipation screen 3 is provided with two groups, an upper group and an lower group, a holding handle 31 is fixedly installed between the upper and lower groups of heat dissipation screens 3, and the heat dissipation screen 3 is in the shape of a hollow horizontal strip.

[0025] It should be noted that the user starts the electric push rod 57 to extend the piston rod end. At this time, the mounting plate 4 will drive the heat dissipation fan 41 to continuously move toward the outside of the inner cavity of the power supply cabinet 1. As the position of the mounting plate 4 continues to change, the mounting plate 4 will drive the second rack 56 to rotate the second gear 55. Since the second gear 55 and the first gear 52 are fixedly connected to the positioning column 51, the positioning column 51 will drive the first gear 52 to rotate, and the first gear 52 is meshed with the first rack 54. The first gear 52 will drive the first rack 54 and the connecting plate 53 to slide the heat dissipation screen 3. Finally, the heat dissipation screen 3 can slide to the rightmost side wall of the power supply cabinet 1. At the same time, the mounting plate 4 will also drive the heat dissipation fan 41 to slide out of the power supply cabinet 1. At this time, the workers can easily and quickly clean the dust on the heat dissipation fan 41 and the inside of the power supply cabinet 1, which greatly improves the workers' labor efficiency.

[0026] Further, the adjustment mechanism 7 includes a bidirectional screw 71 rotatably mounted on the left side of the inner cavity of the power cabinet 1, a positioning rod 72 is fixedly mounted on the right side of the inner cavity of the power cabinet 1, and the upper and lower adjustment plates 6 are threadedly mounted on the side walls of the bidirectional screw 71, and the upper and lower adjustment plates 6 are slidably mounted on the side walls of the positioning rod 72, and the upper and lower threads of the bidirectional screw 71 are in opposite directions; A vertical plate 73 is fixedly installed on the upper end surface of the power cabinet 1, and an adjusting worm 74 is rotatably installed between the two vertical plates 73. An adjusting motor 75 is fixedly installed on the upper end surface of the power cabinet 1 through a frame, and the output shaft end of the adjusting motor 75 is fixedly connected to the adjusting worm 74. An adjusting worm wheel 76 is fixedly installed on the upper part of the side wall of the bidirectional screw 71, and the adjusting worm wheel 76 is meshed and connected with the adjusting worm 74. The side wall of the adjustment plate 6 is provided with mounting holes 61 , and there are several groups of mounting holes 61 . The adjustment plate 6 in the middle is fixedly mounted on the side wall of the positioning rod 72 , and the adjustment plate 6 is rotatably mounted on the side wall of the bidirectional screw 71 .

[0027] It should be noted that through the mounting holes 61 provided on the side walls of the adjusting plate 6, workers can quickly and conveniently install electrical components on the side walls of the adjusting plate 6. The workers start the adjusting motor 75 to rotate the bidirectional screw 71. Since the upper and lower threads of the bidirectional screw 71 are in opposite directions, the upper and lower adjusting plates 6 are slidably installed on the side walls of the positioning rod 72. At this time, under the constraint of the positioning rod 72, the upper and lower adjusting plates 6 will rise or fall on the side walls of the positioning rod 72, so that the distance between the upper and lower groups of adjusting plates 6 and the middle adjusting plate 6 changes. At this time, workers can install electrical components of different sizes on the side walls of the upper and lower adjusting plates 6, which greatly improves the practicability of the entire device.

[0028] Furthermore, the emergency mechanism 8 includes an ear plate 81 fixedly mounted on the left and right side walls of the adjustment plate 6, and positioning blocks 82 are fixedly mounted on the front and rear sides of the inner side walls of the ear plate 81, and a threaded column 83 is rotatably mounted between the positioning blocks 82 on the front and rear sides, and a movable sprayer 84 is threadedly mounted on the side wall of the threaded column 83; An emergency motor 85 is fixedly mounted on the side wall of the ear plate 81 through a frame, and the output shaft end of the emergency motor 85 is fixedly connected to the threaded column 83. A dry powder cartridge 86 is fixedly mounted on the outer side wall of the ear plate 81, and the dry powder cartridge 86 is connected to the movable sprayer 84 through a connecting pipe 87. A sliding groove 811 is opened on the side wall of the ear plate 81, and the connecting pipe 87 slides in the inner cavity of the sliding groove 811. A temperature sensor 11 is fixedly mounted on the inner wall of the power cabinet 1 . The temperature sensor 11 is electrically connected to the emergency motor 85 and the movable sprayer 84 . The model of the temperature sensor 11 is ATE400.

[0029] It should be noted that when the operating temperature of the electrical components in the power supply cabinet 1 is abnormal, the temperature sensor 11 can detect the abnormal temperature of the environment, trigger an alarm and start the emergency motor 85 to run. The output shaft end of the emergency motor 85 is fixedly connected to the threaded column 83, and the threaded column 83 will be rotated. Since the movable sprayer 84 is threadedly connected to the threaded column 83, the movable sprayer 84 slides on the side wall of the ear plate 81. At this time, under the limiting effect of the ear plate 81 on the movable sprayer 84, the movable sprayer 84 can move back and forth on the side wall of the threaded column 83. Synchronously starting the movable sprayer 84 can make the dry powder in the dry powder tube 86 pass through the connecting pipe 87 and be sprayed out from the movable sprayer 84. Spraying the dry powder on the burning electrical components can prevent the entry of oxygen around the electrical components in the first time, thereby achieving the function of extinguishing the fire and avoiding the spread of the fire, thereby greatly improving the safety performance of the entire device during use.

[0030] Working principle: During operation, workers can quickly and conveniently install electrical components on the side walls of the adjusting plates 6 through the mounting holes 61 provided on the side walls of the adjusting plates 6. Workers start the adjusting motor 75 to rotate the bidirectional screw 71. Since the threads of the upper and lower sides of the bidirectional screw 71 are in opposite directions, the adjusting plates 6 on the upper and lower sides are slidably installed on the side walls of the positioning rod 72. At this time, under the constraint of the positioning rod 72, the adjusting plates 6 on the upper and lower sides will rise or fall on the side walls of the positioning rod 72, so that the distance between the upper and lower groups of adjusting plates 6 and the middle adjusting plate 6 changes. At this time, workers can install electrical components of different sizes on the side walls of the adjusting plates 6 on the upper and lower sides, which greatly improves the practicality of the entire device. After the entire device has been used for a period of time, the user can start the electric push rod 57 to extend the piston rod end. At this time, the mounting plate 4 will drive the heat dissipation fan 41 to continuously move toward the outer side of the inner cavity of the power cabinet 1. As the position of the mounting plate 4 continues to change, the mounting plate 4 will drive the second rack 56 to rotate the second gear 55. Since the second gear 55 and the first gear 52 are fixedly connected to the positioning column 51, the positioning column 51 will drive the first gear 52 to rotate, and the first rack 54 is meshed with the first gear 52. The first gear 52 will drive the first rack 54 and the connecting plate 53 to slide the heat dissipation screen 3. Finally, the heat dissipation screen 3 can slide to the rightmost side wall of the power cabinet 1. At the same time, the mounting plate 4 will also drive the heat dissipation fan 41 to slide out of the power cabinet 1. At this time, the worker can quickly and easily clean the dust on the heat dissipation fan 41 and the inside of the power cabinet 1, which greatly improves the worker's labor efficiency. When the operating temperature of the electrical components in the power supply cabinet 1 is abnormal, the temperature sensor 11 can detect the abnormal temperature of the environment, trigger an alarm and start the emergency motor 85 to run. The output shaft end of the emergency motor 85 is fixedly connected to the threaded column 83, and the threaded column 83 will be rotated. Since the movable sprayer 84 is threadedly connected to the threaded column 83, the movable sprayer 84 slides on the side wall of the ear plate 81. At this time, under the limiting effect of the ear plate 81 on the movable sprayer 84, the movable sprayer 84 can move back and forth on the side wall of the threaded column 83. Synchronously starting the movable sprayer 84 can make the dry powder in the dry powder tube 86 pass through the connecting pipe 87 and be sprayed out from the movable sprayer 84. Spraying the dry powder on the burning electrical components can prevent the entry of oxygen around the electrical components in the first time, thereby achieving the function of extinguishing the fire and avoiding the spread of the fire, thereby greatly improving the safety performance of the entire device during use.

[0031] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] It should be noted that the specific model specifications of the motor need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be described in detail. Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the protection scope of the present invention. Simple modification or equivalent replacement of the technical solution of the present invention by ordinary technicians in the field does not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A power access intelligent protection device, comprising a power cabinet (1), wherein insulating feet (2) are fixedly mounted on the left and right sides of the lower end surface of the power cabinet (1), and a sealed cabinet door is rotatably mounted on the front end surface of the power cabinet (1) via a hinge, characterized in that: Also includes: A heat dissipation screen (3), the heat dissipation screen (3) being slidably mounted on the rear end surface of the power cabinet (1), the heat dissipation screen (3) being used to isolate external dust; A mounting plate (4), the mounting plate (4) being slidably mounted on an inner side wall of the power cabinet (1), a heat dissipation fan (41) being fixedly mounted on the side wall of the mounting plate (4); A cleaning mechanism (5), the cleaning mechanism (5) being arranged on a side wall of the power cabinet (1), the cleaning mechanism (5) being used to store the heat dissipation fan (41); An adjustment plate (6), the adjustment plate (6) being arranged in the inner cavity of the power cabinet (1), and electrical components being mounted on the side walls of the adjustment plate (6); An adjustment mechanism (7), the adjustment mechanism (7) being arranged in the inner cavity of the adjustment plate (6), and the adjustment mechanism (7) being used to change the spacing of the adjustment plates (6); An emergency mechanism (8) is arranged in the inner cavity of the power cabinet (1), and is used to spray dry powder into the power cabinet (1) when an electrical component is abnormal.

2. A power access intelligent protection device according to claim 1, characterized in that: The cleaning mechanism (5) comprises a positioning column (51) rotatably mounted on the upper and lower side walls of the power cabinet (1); a first gear (52) is fixedly mounted on the upper portion of the side wall of the positioning column (51); a connecting plate (53) is fixedly mounted on the side wall of the heat dissipation screen (3); a first rack (54) is fixedly mounted on the side wall of the connecting plate (53); and the first rack (54) is meshingly connected to the first gear (52).

3. A power access intelligent protection device according to claim 2, characterized in that: A second gear (55) is fixedly mounted on the lower part of the side wall of the positioning column (51), a second rack (56) is fixedly mounted on the side wall of the mounting plate (4), the second gear (55) is meshingly connected with the second rack (56), an electric push rod (57) is fixedly mounted on the top and bottom surfaces of the inner cavity of the power supply cabinet (1), and the piston rod end of the electric push rod (57) is fixedly connected to the mounting plate (4).

4. The power access intelligent protection device according to claim 1, characterized in that: The heat dissipation screen (3) is provided with two groups, an upper group and an lower group, a holding handle (31) is fixedly installed between the upper and lower groups of the heat dissipation screen (3), and the heat dissipation screen (3) is in the shape of a hollow horizontal strip.

5. The power access intelligent protection device according to claim 1, characterized in that: The adjustment mechanism (7) comprises a bidirectional screw (71) rotatably mounted on the left side of the inner cavity of the power cabinet (1); a positioning rod (72) is fixedly mounted on the right side of the inner cavity of the power cabinet (1); the adjustment plates (6) on the upper and lower sides are threadedly mounted on the side walls of the bidirectional screw (71); the adjustment plates (6) on the upper and lower sides are slidably mounted on the side walls of the positioning rod (72); and the upper and lower sides of the bidirectional screw (71) have opposite thread directions.

6. A power access intelligent protection device according to claim 5, characterized in that: A vertical plate (73) is fixedly mounted on the upper end surface of the power cabinet (1), an adjusting worm (74) is rotatably mounted between the two vertical plates (73), an adjusting motor (75) is fixedly mounted on the upper end surface of the power cabinet (1) via a frame, an output shaft end of the adjusting motor (75) is fixedly connected to the adjusting worm (74), an adjusting worm wheel (76) is fixedly mounted on the upper part of the side wall of the bidirectional screw (71), and the adjusting worm wheel (76) is meshingly connected to the adjusting worm (74).

7. The power access intelligent protection device according to claim 5, characterized in that: The side wall of the adjustment plate (6) is provided with mounting holes (61), and the mounting holes (61) are provided in a plurality of groups. The adjustment plate (6) located in the middle is fixedly mounted on the side wall of the positioning rod (72), and the adjustment plate (6) is rotatably mounted on the side wall of the bidirectional screw rod (71).

8. The power access intelligent protection device according to claim 1, characterized in that: The emergency mechanism (8) comprises an ear plate (81) fixedly mounted on the left and right side walls of the adjustment plate (6), positioning blocks (82) are fixedly mounted on the front and rear sides of the inner side walls of the ear plate (81), a threaded column (83) is rotatably mounted between the positioning blocks (82) on the front and rear sides, and a movable sprayer (84) is threadedly mounted on the side wall of the threaded column (83).

9. A power access intelligent protection device according to claim 8, characterized in that: An emergency motor (85) is fixedly mounted on the side wall of the ear plate (81) via a frame, and an output shaft end of the emergency motor (85) is fixedly connected to a threaded column (83). A dry powder cartridge (86) is fixedly mounted on the outer side wall of the ear plate (81), and the dry powder cartridge (86) is connected to a movable sprayer (84) via a connecting pipe (87). A sliding groove (811) is provided on the side wall of the ear plate (81), and the connecting pipe (87) slides in the inner cavity of the sliding groove (811).

10. A power access intelligent protection device according to claim 9, characterized in that: A temperature sensor (11) is fixedly mounted on the inner wall of the power cabinet (1), the temperature sensor (11) is electrically connected to the emergency motor (85) and the movable sprayer (84), and the model of the temperature sensor (11) is ATE400.

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