A draw-out low voltage switchgear

Abstract

The application relates to the technical field of low-voltage switch cabinets, and discloses a pull-out type low-voltage switch cabinet which comprises a switch cabinet body, a partition plate is fixedly connected inside the switch cabinet body, a drawer slot is arranged on one side of the switch cabinet body, a limiting slot is fixedly connected inside the drawer slot, a sliding plate is movably connected inside the limiting slot, a drawer cabinet is fixedly connected to the side surface of the sliding plate, a heat dissipation mechanism is movably connected to the side surface of the switch cabinet body away from the partition plate, a supporting mechanism is movably connected to the bottom end of the drawer cabinet, and a limiting mechanism is movably connected to the side surface of a drawer panel; when the drawer cabinet is pulled out, the drawer cabinet drives the two rack strips to move; when the rack strips are in contact with the gear after moving, the gear rotates; when the gear rotates, the supporting shaft rotates; when the supporting shaft rotates, the rotating plate and the limiting plate rotate; after the limiting plate rotates, the limiting plate is located above the protruding plate; at this time, the protruding plate is pressed down to support the drawer cabinet, so that the drawer cabinet is not easy to deform.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of low-voltage switch cabinets, and more particularly to an extracted low-voltage switch cabinet. BACKGROUND

[0002] Low-voltage switch cabinets are used in power plants, petroleum, chemical, metallurgical, textile, high-rise building, and other industries, and can be used for power transmission, power distribution, and power conversion. An extracted low-voltage switch cabinet is one of the types, and its core feature is that the circuit breaker, contactor, and other main functional units are designed as an extractable drawer module, which facilitates installation, maintenance, testing, and replacement, thereby minimizing power outage time and improving power supply reliability.

[0003] An extracted low-voltage switch cabinet is a low-voltage power distribution device widely used in industrial enterprises, buildings, and substations. The extracted low-voltage cabinet is the core equipment for realizing power control, protection, conversion, and distribution in a low-voltage power supply system, and is composed of busbars, disconnectors, circuit breakers, instruments, and other components, as well as a cabinet. The extracted low-voltage switch cabinet is designed with standardized drawer units, which can be flexibly combined according to requirements, supporting later expansion or modification, and adapting to different power distribution scenarios.

[0004] When the extracted low-voltage switch cabinet is being repaired, the drawer cabinet needs to be pulled out to detect the electronic components inside. When the drawer cabinet is extracted, the side away from the switch cabinet is in the air, and under the action of gravity, the drawer cabinet is prone to deformation. Therefore, after being pulled out multiple times, the drawer cabinet may be damaged.

[0005] Nowadays, the drawer cabinet does not contain existing mechanisms when being extracted, so it may be pulled down directly. Therefore, when the drawer cabinet is pulled open, the staff needs to pull it slowly, resulting in low work efficiency.

[0006] The heat generated by each drawer cabinet inside the switch cabinet during operation is different, so when the switch cabinet is cooled, it cannot be cooled specifically for each drawer cabinet, resulting in a large temperature difference inside the switch cabinet, which is prone to failure. SUMMARY

[0007] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present application provide an extracted low-voltage switch cabinet to solve the technical problems raised in the background art.

[0008] To achieve the above object, the present application provides the following technical scheme: A kind of drawing type low-voltage switch cabinet, including switch cabinet body, the inside of the switch cabinet body is fixedly connected with partition plate, the inside of the partition plate is equipped with connecting passage, one side in the switch cabinet body is equipped with drawer slot, the inside of the drawer slot is fixedly connected with limit slot, the inside of the limit slot is movably connected with sliding plate, the side of the sliding plate is fixedly connected with drawer cabinet, the side of the drawer cabinet away from the switch cabinet body is fixedly connected with drawer panel, the inside of the switch cabinet body is movably connected with heat dissipation mechanism, the bottom of the drawer cabinet is movably connected with support mechanism, the side of the drawer panel is movably connected with limit mechanism, when the drawer cabinet is drawn out, the support mechanism supports and fixes the drawer cabinet, the limit mechanism limits the drawer panel, the heat dissipation mechanism carries out heat dissipation to the power element running in the drawer cabinet.

[0009] In a preferred embodiment, the support mechanism includes a support plate that supports, the side of the support plate is fixedly connected with the inside of the switch cabinet body, the top of the support plate is fixedly connected with a fixed plate on both sides, the inside of the two fixed plates is movably connected with a support shaft, the side of the support shaft is fixedly connected with a rotating plate, and the top of the rotating plate is fixedly connected with a limit plate.

[0010] In a preferred embodiment, the side of the drawer cabinet is fixedly connected with a protruding plate close to the side of the switch cabinet body, when the rotating plate is perpendicular, the limit plate is located at the top of the protruding plate, the two sides of the drawer cabinet are fixedly connected with a rack, the bottom of the rack is engaged with a gear, and the inside of the gear is fixedly connected with the side of the support shaft.

[0011] In a preferred embodiment, the side of the rotating plate is fixedly connected with a backing plate, when the rotating plate is in a horizontal state, the bottom of the backing plate is in contact with the top of the support plate, and the top of the limit plate is not in contact with the bottom of the drawer cabinet.

[0012] In a preferred embodiment, the limit mechanism includes a first connecting plate fixedly connected with the inside of the switch cabinet body, the side of the first connecting plate is movably connected with a telescopic assembly, the side away from the first connecting plate of the telescopic assembly is movably connected with a second connecting plate, and the side away from the telescopic assembly of the second connecting plate is fixedly connected with a connecting seat.

[0013] In a preferred embodiment, the two sides of the connecting seat are equipped with threaded holes, the threaded holes in the connecting seat are threadedly connected with threaded rods, the side away from the drawer panel of the threaded rods is fixedly connected with an adjusting wheel, the side of the drawer panel is equipped with threaded holes matched with the threaded holes in the connecting seat, and the connecting seat and the drawer panel are connected through the threaded holes of the connecting seat and the threaded holes of the drawer panel.

[0014] In a preferred implementation form, the heat dissipation mechanism comprises a powered servo motor, the side surface of the servo motor is fixedly connected with an output shaft, the side surface of the output shaft is fixedly connected with a vane group, the side surface of the output shaft is fixedly connected with a synchronous belt, and the inner side of the synchronous belt away from the output shaft is fixedly connected with a fan mechanism, and the heat dissipation mechanism is movably connected to the side surface of the switch cabinet body away from the partition plate.

[0015] In a preferred implementation form, the heat dissipation mechanism further comprises a shielding plate located in the connecting channel, the top end of the shielding plate is fixedly connected with a limiting rod, the side surface of the limiting rod is movably connected with a moving plate, and the side surface of the moving plate is movably connected with a fixed groove.

[0016] In a preferred implementation form, the inner side of the fixed groove is provided with a sliding groove for the movement of the moving plate, the side surface of the limiting rod is sleeved with a memory spring, and the top end and the bottom end of the memory spring are in contact with the moving plate and the shielding plate, respectively.

[0017] In a preferred implementation form, the inner side of the fixed groove is fixedly connected with an electromagnet, the top end of the moving plate is made of magnetic material, and the gas blown by the vane group and the synchronous belt flows between the moving plate and the shielding plate.

[0018] Technical effects and advantages of the present application:

[0019] 1、The drawer cabinet is pulled out, the drawer cabinet drives the two side racks to move, when the racks move and contact the gears, the gears rotate, the supporting shaft rotates, the rotating plate and the limiting plate rotate, the limiting plate is located above the protruding plate, the protruding plate is pressed down at this time, the drawer cabinet is supported, and the drawer cabinet is not easy to deform;

[0020] 2、When the drawer cabinet is pulled open, the drawer cabinet and the drawer panel move synchronously, the second connecting plate moves through the threaded rod and the connecting seat, the telescopic assembly is stretched when the second connecting plate moves, the limiting plate is located above the protruding plate and presses it down when the telescopic assembly is stretched to the maximum distance, the supporting effect of the drawer cabinet is guaranteed, and the drawer cabinet can be prevented from being suddenly pulled out, when the drawer cabinet is replaced, the drawer panel and the connecting seat are rotated, and a new drawer cabinet and a drawer panel are replaced, which can be quickly replaced through the threaded rod connection.

[0021] 3、When the temperatures of different drawer cabinets in the present application are different, the memory spring on the side of the drawer cabinet with higher temperature resets under the action of high temperature, so that the memory spring is automatically stretched and lengthened, and the moving plate moves upward, at this time, the size of the connecting channel on the side of the drawer cabinet increases, therefore, the gas blown by the vane group and the fan mechanism when rotating increases, the gas is quickly cooled, and the temperature in the switch cabinet body is balanced. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the overall exploded structure of the present invention.

[0024] Figure 3 This is a schematic diagram of the internal structure of the switch cabinet of the present invention.

[0025] Figure 4 This is a schematic diagram of the drawer cabinet structure of the present invention.

[0026] Figure 5 This is a schematic diagram of the support mechanism structure of the present invention.

[0027] Figure 6 This is an exploded structural diagram of the support mechanism of the present invention.

[0028] Figure 7 This is a schematic diagram of the limiting mechanism structure of the present invention.

[0029] Figure 8 This is a schematic diagram of the overall structure of the heat dissipation mechanism of the present invention.

[0030] Figure 9 This is a schematic diagram of the internal structure of the fixing groove of the present invention.

[0031] The attached figures are labeled as follows: 1. Switch cabinet body; 2. Divider plate; 3. Connecting channel; 4. Drawer slot; 5. Limiting slot; 6. Sliding plate; 7. Drawer cabinet; 8. Drawer front panel; 9. Support mechanism; 901. Support plate; 902. Fixing plate; 903. Support shaft; 904. Rotating plate; 905. Pad plate; 906. Limiting plate; 907. Protruding plate; 908. Rack; 909. Gear; 10. Limiting mechanism; 1001. First connecting plate; 100 2. Telescopic assembly; 1003. Second connecting plate; 1004. Connecting seat; 1005. Threaded rod; 1006. Adjusting wheel; 11. Heat dissipation mechanism; 1101. Servo motor; 1102. Output shaft; 1103. Blade group; 1104. Synchronous belt; 1105. Fan mechanism; 1106. Baffle plate; 1107. Limiting rod; 1108. Memory spring; 1109. Moving plate; 1110. Fixing groove; 1111. Electromagnet. Detailed Implementation

[0032] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application. In addition, the forms of the structures described in the following embodiments are only examples. The low-voltage switch cabinet according to the present application is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] With reference to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the present application provides a low-voltage switch cabinet, comprising a switch cabinet body 1, a partition plate 2 fixedly connected inside the switch cabinet body 1, a connecting channel 3 formed in the inside of the partition plate 2, a drawer slot 4 formed on one side of the switch cabinet body 1, a limiting slot 5 fixedly connected inside the drawer slot 4, a sliding plate 6 movably connected inside the limiting slot 5, a drawer cabinet 7 fixedly connected to the side surface of the sliding plate 6, a drawer panel 8 fixedly connected to the side surface of the drawer cabinet 7 away from the switch cabinet body 1, a heat dissipation mechanism 11 movably connected inside the switch cabinet body 1, a supporting mechanism 9 movably connected to the bottom end of the drawer cabinet 7, a limiting mechanism 10 movably connected to the side surface of the drawer panel 8, when the drawer cabinet 7 is pulled out, the supporting mechanism 9 supports and fixes the drawer cabinet 7, the limiting mechanism 10 limits the drawer panel 8, and the heat dissipation mechanism 11 dissipates heat from the power elements running in the drawer cabinet 7.

[0034] In the present application, when the drawer cabinet 7 is pulled out, the limiting mechanism 10 is connected between the drawer panel 8, thereby avoiding the drawer cabinet 7 from directly falling out of the drawer slot 4, and further avoiding the situation that the drawer cabinet 7 suddenly falls. When the drawer cabinet 7 is pulled out, the drawer panel 8 supports the drawer cabinet 7, thereby avoiding the situation that the drawer cabinet 7 is easily deformed when it is pulled out and suspended in the air. The heat dissipation mechanism 11 dissipates heat from the power elements running in the drawer cabinet 7, thereby ensuring that the drawer cabinet 7 will not overheat after a long time of operation.

[0035] With reference to Figure 4 , Figure 5 and Figure 6The support mechanism 9 comprises a support plate 901 which supports, the side of the support plate 901 is fixedly connected with the inside of the switch cabinet body 1, both sides of the top end of the support plate 901 are fixedly connected with fixed plates 902, the inside of both fixed plates 902 is movably connected with a support shaft 903, the side of the support shaft 903 is fixedly connected with a rotating plate 904, the top end of the rotating plate 904 is fixedly connected with a limiting plate 906, the side close to the switch cabinet body 1 of the drawer cabinet 7 is fixedly connected with a protruding plate 907, when the rotating plate 904 is vertical, the limiting plate 906 is located at the top end of the protruding plate 907, both sides of the drawer cabinet 7 are fixedly connected with racks 908, the bottom end of the rack 908 is engaged with a gear 909, the inside of the gear 909 is fixedly connected with the side of the support shaft 903, the side of the rotating plate 904 is fixedly connected with a backing plate 905, when the rotating plate 904 is in a horizontal state, the bottom end of the backing plate 905 is in contact with the top end of the support plate 901, the top end of the limiting plate 906 is not in contact with the bottom end of the drawer cabinet 7.

[0036] When the drawer cabinet 7 is pulled out, the drawer cabinet 7 drives the rack 908 to move, and the rack 908 is in contact with the gear 909, at this time, when the drawer cabinet 7 moves again, the gear 909 rotates, the gear 909 drives the support shaft 903 to rotate, the support shaft 903 drives the protruding plate 907 to rotate when the support shaft 903 rotates, the limiting plate 906 is in a vertical state after rotating ninety degrees, at this time, the drawer cabinet 7 drives the protruding plate 907 to move below the limiting plate 906, the limiting plate 906 is below the protruding plate 907, thereby supporting the protruding plate 907, and further supporting the drawer cabinet 7, avoiding the deformation of the drawer cabinet 7, when the drawer cabinet 7 is retracted, the rack 908 reverses the gear 909, and further makes the rotating plate 904 return to the horizontal state again, when the rotating plate 904 is in the horizontal state, the top end of the limiting plate 906 is not in contact with the bottom end of the drawer cabinet 7, so it will not affect the operation of the drawer cabinet 7, in addition, it should be noted that the support shaft 903 rotates in the two fixed plates 902 in a damping state, so when the drawer cabinet 7 is replaced, the rotating plate 904 in the vertical state can remain in this state, when the new drawer cabinet 7 is put in, the protruding plate 907 on the side of the drawer cabinet 7 can be placed below the limiting plate 906.

[0037] Referring to Figure 7The limiting mechanism 10 comprises a first connecting plate 1001 fixedly connected with the inside of the switch cabinet body 1, a telescopic assembly 1002 movably connected to the side of the first connecting plate 1001, a second connecting plate 1003 movably connected to the side of the telescopic assembly 1002 away from the first connecting plate 1001, a connecting seat 1004 fixedly connected to the side of the second connecting plate 1003 away from the telescopic assembly 1002, screw holes formed in the two sides of the connecting seat 1004, a threaded rod 1005 threadedly connected in the screw holes of the connecting seat 1004, an adjusting wheel 1006 fixedly connected to the side of the threaded rod 1005 away from the drawer panel 8, and screw holes formed in the side of the drawer panel 8 and matched with the screw holes of the connecting seat 1004. The threaded rod 1005 connects the connecting seat 1004 and the drawer panel 8 through the screw holes of the connecting seat 1004 and the drawer panel 8.

[0038] In the embodiment of the present application, when the new drawer cabinet 7 is replaced, the threaded rod 1005 is turned out from the drawer panel 8 and the connecting seat 1004. At this time, the drawer panel 8 and the connecting seat 1004 are separated from each other, so that the drawer panel 8 and the drawer cabinet 7 connected with the drawer panel 8 can be removed, and the new drawer cabinet 7 can be replaced. The new drawer cabinet 7 is placed above the telescopic assembly 1002, and the threaded rod 1005 connects the connecting seat 1004 and the drawer panel 8. Therefore, the drawer cabinet 7 can be quickly replaced, and the drawer cabinet 7 will not suddenly fall during replacement.

[0039] Referring to Figure 1 , Figure 8 and Figure 9 , the heat dissipation mechanism 11 comprises a servo motor 1101 providing power, an output shaft 1102 fixedly connected to the side of the servo motor 1101, a blade group 1103 fixedly connected to the side of the output shaft 1102 away from the servo motor 1101, a synchronous belt 1104 fixedly connected to the side of the output shaft 1102, and a fan mechanism 1105 fixedly connected to the inside of the synchronous belt 1104 away from the output shaft 1102. The heat dissipation mechanism 11 is movably connected to the side of the switch cabinet body 1 away from the partition plate 2. The heat dissipation mechanism 11 further comprises a shielding plate 1106 located in the connecting channel 3, a limiting rod 1107 fixedly connected to the top end of the shielding plate 1106, a moving plate 1109 movably connected to the side of the limiting rod 1107, a fixed groove 1110 movably connected to the side of the moving plate 1109, a sliding groove formed in the inside of the fixed groove 1110 and allowing the moving plate 1109 to move, a memory spring 1108 sleeved to the side of the limiting rod 1107, the top end and the bottom end of the memory spring 1108 being in contact with the moving plate 1109 and the shielding plate 1106 respectively, an electromagnet 1111 fixedly connected to the top end of the inside of the fixed groove 1110, and the top end of the moving plate 1109 being made of magnetic material. The gas blown by the blade group 1103 and the synchronous belt 1104 flows between the moving plate 1109 and the shielding plate 1106.

[0040] In the embodiment of the application, the starting of the servo motor 1101 drives the rotation of the output shaft 1102, and the rotation of the output shaft 1102 drives the rotation of the vane group 1103 and the fan mechanism 1105 through the synchronous belt 1104, so that the vane group 1103 and the fan mechanism 1105 can rotate synchronously, more gas is generated, the temperature is higher, and the memory spring 1108 on the side of the drawer cabinet 7 is at a higher temperature, so that under the action of the high temperature, the memory spring 1108 will reset and remember, and will automatically stretch and lengthen when resetting, so as to move the moving plate 1109 upwards, at this time, the space of the gas connected with the channel 3 on the side of the drawer cabinet 7 is enlarged, so that the gas blown by the rotation of the vane group 1103 and the fan mechanism 1105 is increased, so that the application can freely adjust the air flow when different drawer cabinets 7 are radiated, so as to ensure that the temperature in the switch cabinet body 1 is more balanced, and in an emergency, the electromagnetic iron 1111 is electrified to generate a magnetic attraction force between the moving plate 1109, so that all the moving plates 1109 are moved to the uppermost position, the size of the connecting channel 3 on the side of each drawer cabinet 7 is increased, so as to improve the heat dissipation efficiency and quickly radiate heat.

[0041] The working principle of the application is as follows: when the drawer cabinet 7 is pulled out for inspection, the handle on the side of the drawer panel 8 is pulled, so that the drawer panel 8 and the drawer cabinet 7 are pulled out together, when the drawer cabinet 7 is pulled out, the sliding plate 6 on the side of the drawer cabinet 7 slides in the limiting groove 5, and the drawer cabinet 7 moves to drive the movement of the two side racks 908, the rack 908 contacts the gear 909 after moving, so as to drive the rotation of the gear 909, the rotation of the gear 909 drives the rotation of the support shaft 903, the rotation of the support shaft 903 drives the rotation of the protruding plate 907 and the limiting plate 906, when the limiting plate 906 rotates by ninety degrees, the drawer cabinet 7 drives the movement of the protruding plate 907 to the lower side of the limiting plate 906, at this time, the limiting plate 906 is located below the protruding plate 907, so as to support the protruding plate 907 and the drawer cabinet 7, thereby avoiding the deformation of the drawer cabinet 7.

[0042] When the drawer cabinet 7 is pulled out, the movement of the drawer panel 8 drives the movement of the connecting seat 1004, the movement of the connecting seat 1004 drives the movement of the second connecting plate 1003, so that the telescopic assembly 1002 is stretched, and when the telescopic assembly 1002 is stretched to the maximum, the protruding plate 907 is located below the limiting plate 906, at this time, the sliding plate 6 is still located in the limiting groove 5, so as to avoid the sudden falling of the drawer cabinet 7 and the drawer panel 8, and the telescopic assembly 1002 can partially support the drawer cabinet 7.

[0043] When the drawer cabinet 7 is pulled out, if it is necessary to replace a new drawer cabinet 7, the adjusting wheel 1006 is rotated, the threaded rod 1005 is rotated when the adjusting wheel 1006 is rotated, the threaded rod 1005 can be rotated out of the drawer panel 8 and the connecting seat 1004, at this time, the drawer panel 8 and the drawer cabinet 7 connected with the drawer panel 8 can be removed, and a new drawer cabinet 7 is replaced, the new drawer cabinet 7 is placed above the telescopic assembly 1002, and the limiting plate 906 is located below the protruding plate 907, at this time, the adjusting wheel 1006 is rotated to connect the connecting seat 1004 and the drawer panel 8 through the threaded rod 1005, the drawer cabinet 7 is pushed into the drawer slot 4, when the drawer cabinet 7 is pushed in, the rack 908 is reversely moved, at this time, the limiting plate 906 is reversely rotated through the gear 909, when the drawer cabinet 7 passes through the limiting plate 906, the limiting plate 906 is rotated below the drawer cabinet 7, so that the drawer cabinet 7 moves normally;

[0044] When the temperatures of the various drawer cabinets 7 in the switch cabinet body 1 are different, the servo motor 1101 is started to drive the output shaft 1102 to rotate, the vane group 1103 is rotated when the output shaft 1102 is rotated, and the fan mechanism 1105 is rotated through the synchronous belt 1104, the memory spring 1108 on the side of the drawer cabinet 7 with higher temperature is higher in temperature, so that the memory spring 1108 is reset and stretched to move the moving plate 1109 upward under the action of high temperature, at this time, the space of the gas connected with the channel 3 on the side of the drawer cabinet 7 is increased, so that the gas blown by the vane group 1103 and the fan mechanism 1105 is increased, and the drawer cabinet 7 is rapidly cooled, after cooling, the temperature of the memory spring 1108 on the side of the drawer cabinet 7 is reduced, so that the memory spring 1108 is automatically shortened, so that the temperature in the switch cabinet body 1 is balanced, the servo motor 1101 does not need to be increased in power to cool, the working burden of the servo motor 1101 is avoided, and the servo motor 1101 is not prone to damage, when the overall working load of the switch cabinet body 1 is large, the power of the servo motor 1101 is increased, and the electromagnetic iron 1111 is electrified to generate magnetic attraction between the moving plate 1109, so that all the moving plates 1109 are moved to the uppermost position, the size of the channel 3 on the side of each drawer cabinet 7 is increased, and the heat dissipation efficiency is improved.

[0045] Finally, the above is only a preferred embodiment of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An abstracted low voltage switchgear cabinet comprising a switchgear body (1), characterized in that: The inside of the switch cabinet body (1) is fixedly connected with a partition plate (2), the inside of the partition plate (2) is provided with a connecting channel (3), one side of the switch cabinet body (1) is provided with a drawer slot (4), the inside of the drawer slot (4) is fixedly connected with a limiting slot (5), the inside of the limiting slot (5) is movably connected with a sliding plate (6), the side of the sliding plate (6) is fixedly connected with a drawer cabinet (7), the side, away from the switch cabinet body (1), of the drawer cabinet (7) is fixedly connected with a drawer panel (8), the inside of the switch cabinet body (1) is movably connected with a heat dissipation mechanism (11), the bottom end of the drawer cabinet (7) is movably connected with a supporting mechanism (9), the side of the drawer panel (8) is movably connected with a limiting mechanism (10), when the drawer cabinet (7) is drawn out, the supporting mechanism (9) supports and fixes the drawer cabinet (7), the limiting mechanism (10) limits the drawer panel (8), and the heat dissipation mechanism (11) dissipates heat for the power elements running in the drawer cabinet (7); The supporting mechanism (9) comprises a supporting plate (901) which supports, the side of the supporting plate (901) is fixedly connected with the inside of the switch cabinet body (1), the top end of the supporting plate (901) is fixedly connected with a fixed plate (902) on both sides, the inside of the two fixed plates (902) is movably connected with a supporting shaft (903), the side of the supporting shaft (903) is fixedly connected with a rotating plate (904), and the top end of the rotating plate (904) is fixedly connected with a limiting plate (906); The side, close to the switch cabinet body (1), of the drawer cabinet (7) is fixedly connected with a protruding plate (907), when the rotating plate (904) is perpendicular, the limiting plate (906) is located at the top end of the protruding plate (907), both sides of the drawer cabinet (7) are fixedly connected with a rack (908), the bottom end of the rack (908) is engaged with a gear (909), and the inside of the gear (909) is fixedly connected with the side of the supporting shaft (903); The side of the rotating plate (904) is fixedly connected with a backing plate (905), when the rotating plate (904) is in a horizontal state, the bottom end of the backing plate (905) is in contact with the top end of the supporting plate (901), and the top end of the limiting plate (906) is not in contact with the bottom end of the drawer cabinet (7); The heat dissipation mechanism (11) comprises a servo motor (1101) which provides power, the side of the servo motor (1101) is fixedly connected with an output shaft (1102), the side, away from the servo motor (1101), of the output shaft (1102) is fixedly connected with a blade group (1103), the side of the output shaft (1102) is fixedly connected with a synchronous belt (1104), the inside of the synchronous belt (1104), away from the output shaft (1102), is fixedly connected with a fan mechanism (1105), and the part of the heat dissipation mechanism (11) is movably connected to the side, away from the partition plate (2), of the switch cabinet body (1). The heat dissipation mechanism (11) further comprises a shielding plate (1106) located in the connecting channel (3), a top end of the shielding plate (1106) is fixedly connected with a limiting rod (1107), a side surface of the limiting rod (1107) is movably connected with a moving plate (1109), and a side surface of the moving plate (1109) is movably connected with a fixed groove (1110); A sliding groove for the movement of the moving plate (1109) is formed in the inside of the fixed groove (1110), a memory spring (1108) is sleeved on the side surface of the limiting rod (1107), and the top end and the bottom end of the memory spring (1108) are in contact with the moving plate (1109) and the shielding plate (1106) respectively; An electromagnet (1111) is fixedly connected to the top end of the inside of the fixed groove (1110), the top end of the moving plate (1109) is made of magnetic material, and the gas blown by the blade group (1103) and the fan mechanism (1105) flows between the moving plate (1109) and the shielding plate (1106).

2. The draw-out low voltage switchgear according to claim 1, characterized in that: The limiting mechanism (10) comprises a first connecting plate (1001) fixedly connected with the inside of the switch cabinet body (1), a side surface of the first connecting plate (1001) is movably connected with a telescopic assembly (1002), a side surface of the telescopic assembly (1002) away from the first connecting plate (1001) is movably connected with a second connecting plate (1003), and a side surface of the second connecting plate (1003) away from the telescopic assembly (1002) is fixedly connected with a connecting seat (1004).

3. The draw-out low voltage switchgear according to claim 2, characterized in that: Threaded holes are formed on both sides of the connecting seat (1004), a threaded rod (1005) is threadedly connected in the threaded hole of the connecting seat (1004), a regulating wheel (1006) is fixedly connected to the side surface of the threaded rod (1005) away from the drawer panel (8), a threaded hole matched with the threaded hole in the connecting seat (1004) is formed on the side surface of the drawer panel (8), and the connecting seat (1004) is connected with the drawer panel (8) through the threaded hole of the connecting seat (1004) and the threaded hole of the drawer panel (8).

Images