Intelligent low-voltage draw-out switch cabinet

Abstract

The application relates to an intelligent low-voltage draw-out switch cabinet, which comprises a cabinet body and multiple drawers, the drawers are inserted from the front side of the cabinet body, the drawers are in sliding connection with the cabinet body, a heat dissipation mechanism is arranged on the cabinet body, multiple gravity center adjusting mechanisms are arranged in the cabinet body and are connected with the multiple drawers in one-to-one correspondence; the gravity center adjusting mechanism comprises a gravity block, the gravity block is located below the drawer, first sliding blocks are fixedly arranged on the left and right sides of the gravity block, guide rods are arranged on the first sliding blocks, the guide rods are parallel to the front and back directions, and the guide rods are fixedly connected with the inner wall of the cabinet body; in the process of drawing out or pushing in the drawer, the gravity block is driven to move, the automatic adjustment of the gravity center is realized, and the stability is improved; the movement of the gravity block drives the push rod to move synchronously, when the push rod is inserted into the air pipe, the air in the air pipe is repelled, the dust on the dustproof screen is blown away, and the automatic dust removal of the dustproof screen is realized.

Description

Technical Field

[0001] This invention relates to an intelligent low-voltage withdrawable switchgear, belonging to the field of switchgear technology. Background Technology

[0002] Switchgear is an electrical device used in power systems for opening, closing, controlling, and protecting electrical equipment during power generation, transmission, distribution, and energy conversion. It contains circuit breakers, disconnect switches, load switches, operating mechanisms, instrument transformers, and various protective devices. Draw-out switchgear, by housing the electrical components within a drawer-style cabinet, creates multiple drawers, facilitating the management and maintenance of the components. Draw-out switchgear offers high reliability, safety, and interchangeability, and is widely used in power plants, substations, petrochemical plants, metallurgical steel rolling mills, light industry and textiles, factories and mines, residential communities, high-rise buildings, and various other applications.

[0003] Utility model patent application number CN202120695810.9 discloses an intelligent low-voltage withdrawable switchgear based on power Internet of Things technology. The switchgear includes multiple drawers slidably installed inside, each drawer having a fixing mechanism inside and a moving mechanism on both sides. This utility model utilizes the moving mechanisms on both sides of the drawers. By pulling the drawer, a rotating shaft on one side moves a connecting rod within a slide rail groove. When the rotating shaft moves to one end, the drawer can be pulled downwards from the top, facilitating maintenance of internal parts. The fixing mechanism inside the drawer allows for easy movement of components by adjusting the top horizontal plate of the baffle, causing a protrusion at the bottom of the horizontal plate to slide within a groove. Once the horizontal plate is adjusted, it can be fixed to one side of the baffle with bolts. The space formed by the horizontal plate and the baffle facilitates the fixing of components. However, in the use of existing technology, when the drawer is opened, the center of gravity of the switch cabinet shifts, which can easily cause the switch cabinet to collapse and injure people. In addition, a lot of dust will be generated on the dust screen, which requires manual cleaning and is cumbersome.

[0004] Therefore, there is a need for an intelligent low-voltage withdrawable switchgear that can automatically adjust the center of gravity, improve stability, and automatically clean dust from the dustproof screen. Summary of the Invention

[0005] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art and provide an intelligent low-voltage withdrawable switch cabinet that can automatically adjust the center of gravity, improve stability, and automatically clean dust from the dustproof screen.

[0006] The technical solution adopted by the present invention to solve the above problems is as follows: an intelligent low-voltage withdrawable switch cabinet, including a cabinet body and multiple drawers, wherein the drawers are inserted from the front side of the cabinet body and are slidably connected to the cabinet body, a heat dissipation mechanism is provided on the cabinet body, and multiple center of gravity adjustment mechanisms are provided inside the cabinet body, with the multiple center of gravity adjustment mechanisms corresponding to and connected to the multiple drawers one by one.

[0007] The center of gravity adjustment mechanism includes a gravity block located below the drawer. A first slider is fixedly installed on both the left and right sides of the gravity block. A guide rod passes through the first slider, which is parallel to the front-back direction and is fixedly connected to the inner wall of the cabinet. A transmission component is installed on the first slider, which is connected to the drawer through the transmission component. The movement of the gravity block drives the first slider to move in the opposite direction through the transmission component.

[0008] The heat dissipation mechanism includes a fan and multiple air pipes. The fan is located on the top of the cabinet, and the multiple air pipes correspond one-to-one with multiple drawers. The air pipes are fixedly passed through the rear side of the cabinet, and a dustproof net is installed inside the air pipes. The air pipes are parallel to the guide rods and are located below the drawers. A push rod is provided on the gravity block. The push rod is coaxially arranged with the air pipes and is located in front of the dustproof nets.

[0009] Preferably, a second slider is fixedly installed on both the left and right sides of the drawer, and a slide rail is connected to the second slider. The slide rail is fixedly installed on the inner wall of the cabinet.

[0010] Preferably, the diameter of the push rod is equal to the inner diameter of the trachea.

[0011] Preferably, the transmission assembly includes a connecting rod, a first pin, a second pin, and a third pin, which are arranged sequentially from bottom to top. The connecting rod is hinged to a first slider via the first pin, the third pin is fixedly mounted on the drawer, and the second pin is fixedly mounted on the inner wall of the cabinet. The connecting rod is inclined and has a sliding groove. Both the second and third pins are matched with the sliding groove and inserted into it.

[0012] Preferably, the heat dissipation mechanism further includes a collection box located below the air pipe, with an opening at the top, passing through the rear side of the cabinet, slidably connected to the cabinet, and fixedly connected to a gravity block.

[0013] Preferably, a sealing cover is fitted to the top of the collection box, the sealing cover is located inside the cabinet, and the sealing cover is fixedly connected to the inner wall of the cabinet.

[0014] Preferably, the bottom of the cabinet is provided with four legs, which are arranged in a matrix.

[0015] Preferably, the support leg includes a pressure regulating box, a support tube, a suction cup, and multiple connecting components. The support tube is vertically arranged, the pressure regulating box is fixedly arranged at the top of the support tube, and the suction cup is fixedly arranged at the bottom of the support tube. The inner cavity of the pressure regulating box, the inner cavity of the support tube, and the inner cavity of the suction cup are sequentially connected. The multiple connecting components are evenly distributed around the support tube in a circumferential direction on the outside of the support tube. The connecting components are connected to the pressure regulating box and are located at the bottom of the cabinet.

[0016] Preferably, the connecting assembly includes a lifting plate, a lifting rod, and a pressure regulating rod. The pressure regulating rod extends vertically through the bottom of the pressure regulating box and is slidably and sealingly connected to the pressure regulating box. The top end of the pressure regulating rod is located inside the cavity of the pressure regulating box. The lifting plate is fixedly installed at the bottom end of the pressure regulating rod and is located between the pressure regulating box and the suction cup. The lifting rod is vertically arranged, with its bottom end fixedly installed at the top of the lifting plate and its top end fixedly installed at the bottom of the cabinet.

[0017] Preferably, multiple drawers are evenly distributed from top to bottom.

[0018] Compared with the prior art, the advantages of the present invention are as follows:

[0019] 1. During the process of pulling out or pushing in the drawer, the gravity block moves, realizing automatic adjustment of the center of gravity and improving stability;

[0020] 2. The movement of the gravity block drives the push rod to move synchronously. When the push rod is inserted into the air tube, the air in the air tube repels each other and blows away the dust on the dustproof net, thus realizing the automatic dust removal of the dustproof net.

[0021] 3. By moving the collection box, dust blown away by the dustproof net can be automatically collected;

[0022] 4. The suction cups adhere to the ground, further improving stability. Attached Figure Description

[0023] Figure 1 This is a perspective view of an intelligent low-voltage withdrawable switchgear according to the present invention.

[0024] Figure 2 This is a front view of an intelligent low-voltage withdrawable switchgear according to the present invention.

[0025] Figure 3 This is a left view of an intelligent low-voltage withdrawable switchgear according to the present invention.

[0026] Figure 4 This is a rear view of an intelligent low-voltage withdrawable switchgear according to the present invention.

[0027] Figure 5This is a top view of an intelligent low-voltage withdrawable switchgear according to the present invention.

[0028] Figure 6 This is a schematic diagram of the structure of an intelligent low-voltage pull-out switch cabinet drawer in the pushed-in state according to the present invention.

[0029] Figure 7 This is a schematic diagram of the structure of an intelligent low-voltage withdrawable switch cabinet drawer in the withdrawn state according to the present invention.

[0030] Figure 8 for Figure 7 Enlarged view of part A;

[0031] Figure 9 This is a schematic diagram of the center of gravity adjustment mechanism when the drawer is pushed in.

[0032] Figure 10 This is a schematic diagram of the center of gravity adjustment mechanism when the drawer is pulled out.

[0033] Figure 11 A three-dimensional diagram of the support legs;

[0034] Figure 12 This is a sectional view of the support leg.

[0035] in:

[0036] Cabinet 1;

[0037] Drawer 2;

[0038] Second slider 21, slide rail 22;

[0039] Heat dissipation mechanism 3;

[0040] 31. Fan, 32. Air pipe, 33. Dustproof net, 34. Push rod, 35. Collection box, 36. Sealing cover;

[0041] Center of gravity adjustment mechanism 4;

[0042] Gravity block 41, first slider 42, guide rod 43, transmission assembly 44;

[0043] Connecting rod 44.1, first pin 44.2, second pin 44.3, third pin 44.4, slide groove 44.5;

[0044] Support leg 5;

[0045] Pressure regulating box 51, support tube 52, suction cup 53, connecting assembly 54;

[0046] Lifting plate 54.1, lifting rod 54.2, pressure adjusting rod 54.3. Detailed Implementation

[0047] like Figure 1-12As shown, an intelligent low-voltage withdrawable switch cabinet in this embodiment includes a cabinet body 1 and multiple drawers 2. The bottom of the cabinet body 1 is provided with four support legs 5, which are arranged in a matrix. The multiple drawers 2 are evenly distributed from top to bottom. The drawers 2 are inserted from the front side of the cabinet body 1 and are slidably connected to the cabinet body 1. A heat dissipation mechanism 3 is provided on the cabinet body 1. Multiple center of gravity adjustment mechanisms 4 are provided inside the cabinet body 1, and the multiple center of gravity adjustment mechanisms 4 are connected to the multiple drawers 2 one by one.

[0048] The center of gravity adjustment mechanism 4 includes a gravity block 41 located below the drawer 2. First sliders 42 are fixedly mounted on both the left and right sides of the gravity block 41. Guide rods 43 pass through the first sliders 42, parallel to the front-back direction and fixedly connected to the inner wall of the cabinet 1. A transmission assembly 44 is mounted on the first sliders 42, connecting them to the drawer 2. When the drawer 2 is pulled out of the cabinet 1, the transmission assembly 44 causes the first slider 42 to move backward on the guide rod 43. When the drawer 2 is pushed into the cabinet 1, the transmission assembly 44 causes the first slider 42 to move forward on the guide rod 43.

[0049] The transmission assembly 44 includes a connecting rod 44.1, a first pin 44.2, a second pin 44.3, and a third pin 44.4, which are arranged sequentially from bottom to top. The connecting rod 44.1 is hinged to the first slider 42 via the first pin 44.2. The third pin 44.4 is fixedly mounted on the drawer 2, and the second pin 44.3 is fixedly mounted on the inner wall of the cabinet 1. The connecting rod 44.1 is inclined and has a sliding groove 44.5. Both the second pin 44.3 and the third pin 44.4 are matched with the sliding groove 44.5 and are inserted into the sliding groove 44.5.

[0050] The drawer 2 is fixedly provided with a second slider 21 on both the left and right sides. The second slider 21 is connected to a slide rail 22, which is fixedly provided on the inner wall of the cabinet 1.

[0051] When drawer 2 is pulled out or pushed in, the second slider 21 moves synchronously on the slide rail 22. During the process of pulling out drawer 2, the third pin 44.4 moves synchronously, and the third pin 44.4 drives the connecting rod 44.1 to rotate around the second pin 44.3. Both the third pin 44.4 and the second pin 44.3 slide relative to each other with the slide groove 44.5. The rotation of the connecting rod 44.1 drives the first slider 42 to move relative to each other on the guide rod 43 through the first pin 44.2, and drives the gravity block 41 to move backward synchronously. Through calculation, the center of gravity offset caused by the forward movement of drawer 2 is offset by the center of gravity offset caused by the relative movement of gravity block 41. In this way, the center of gravity is adjusted, and the switch cabinet is prevented from collapsing due to the center of gravity shift when drawer 2 is pulled out, thus improving stability.

[0052] Pushing drawer 2 in is the opposite of pulling it out;

[0053] The heat dissipation mechanism 3 includes a fan 31 and multiple air pipes 32. The fan 31 is installed on the top of the cabinet 1. The multiple air pipes 32 correspond one-to-one with multiple drawers 2. The air pipes 32 are fixedly passed through the rear side of the cabinet 1. A dustproof net 33 is installed inside the air pipe 32. The air pipe 32 is parallel to the guide rod 43. The air pipe 32 is located below the drawer 2. A push rod 34 is provided on the gravity block 41. The push rod 34 is coaxially arranged with the air pipe 32. The diameter of the push rod 34 is equal to the inner diameter of the air pipe 32. The push rod 34 is located in front of the dustproof net 33.

[0054] The heat dissipation mechanism 3 also includes a collection box 35, which is located below the air pipe 32. The top of the collection box 35 is open, the collection box 35 passes through the rear side of the cabinet 1, the collection box 35 is slidably connected to the cabinet 1, and the collection box 35 is fixedly connected to the gravity block 41.

[0055] A sealing cover 36 is fitted to the top of the collection box 35. The sealing cover 36 is located inside the cabinet 1 and is fixedly connected to the inner wall of the cabinet 1.

[0056] The fan 31 exhausts the air inside the cabinet 1, while the air outside the cabinet 1 is transported into the cabinet 1 through the air pipe 32. The air flow dissipates the heat inside the cabinet 1, achieving heat dissipation, and the dust filter 33 traps dust in the air, achieving air purification.

[0057] During the process of pulling out drawer 2 and the movement of gravity blocks 41, gravity blocks 41 drive push rod 34 to move synchronously. Through calculation, push rod 34 is inserted into air pipe 32. By moving push rod 34 backward in air pipe 32, air in air pipe 32 is discharged from the rear end of air pipe 32, and dust on dust screen 33 is blown away, realizing automatic dust removal of dust screen 33. In addition, the backward movement of gravity blocks 41 drives collection box 35 to move synchronously, so that the rear side wall of collection box 35 is located behind air pipe 32, so that dust blown away from dust screen 33 can fall into collection box 35. When drawer 2 is pushed in, gravity blocks 41 move forward to reset and push rod 34 is separated from air pipe 32. At the same time, collection box 35 moves forward. Through calculation, at this time the rear side wall of collection box 35 is on the same plane as the rear side wall of cabinet 1, and the opening of collection box 35 is sealed by sealing cover 36 to prevent the dust collected in collection box 35 from leaking.

[0058] The support leg 5 includes a pressure regulating box 51, a support tube 52, a suction cup 53, and multiple connecting components 54. The support tube 52 is vertically arranged, the pressure regulating box 51 is fixedly arranged at the top of the support tube 52, and the suction cup 53 is fixedly arranged at the bottom of the support tube 52. The inner cavity of the pressure regulating box 51, the inner cavity of the support tube 52, and the inner cavity of the suction cup 53 are sequentially connected. The multiple connecting components 54 are evenly distributed around the support tube 52 in a circumferential direction. The connecting components 54 are connected to the pressure regulating box 51 and are arranged at the bottom of the cabinet 1.

[0059] The connecting assembly 54 includes a lifting plate 54.1, a lifting rod 54.2, and a pressure regulating rod 54.3. The pressure regulating rod 54.3 extends vertically through the bottom of the pressure regulating box 51 and is slidably and sealingly connected to the pressure regulating box 51. The top end of the pressure regulating rod 54.3 is located inside the cavity of the pressure regulating box 51. The lifting plate 54.1 is fixedly disposed at the bottom end of the pressure regulating rod 54.3 and is located between the pressure regulating box 51 and the suction cup 53. The lifting rod 54.2 is vertically disposed, with its bottom end fixedly disposed at the top of the lifting plate 54.1 and its top end fixedly disposed at the bottom of the cabinet 1.

[0060] The bottom of the switch cabinet can be equipped with telescopic rollers. During the movement of the cabinet 1, the suction cup 53 is located above the ground. When the cabinet 1 moves to the target position, the rollers retract, thereby lowering the cabinet 1 and bringing the suction cup 53 into contact with the ground. As the gap between the cabinet 1 and the ground decreases, the cabinet 1 drives the pressure regulating rod 54.3 to descend sequentially through the lifting rod 54.2 and the lifting plate 54.1. The volume of the pressure regulating rod 54.3 inserted into the pressure regulating box 51 decreases, thereby reducing the air pressure inside the pressure regulating box 51, that is, reducing the air pressure inside the suction cup 53. Through the action of air pressure, the suction cup 53 is adhered to the ground, thus further improving the stability of the switch cabinet. When the lifting plate 54.1 comes into contact with the suction cup 53, the cabinet 1 stops descending.

[0061] In addition to the above embodiments, the present invention also includes other embodiments. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present invention.

Claims

1. An intelligent low-voltage withdrawable switch cabinet, comprising a cabinet body (1) and a plurality of drawers (2), wherein the drawers (2) are inserted from the front side of the cabinet body (1), and the drawers (2) are slidably connected to the cabinet body (1), characterized in that: The cabinet (1) is provided with a heat dissipation mechanism (3), and the cabinet (1) is provided with multiple center of gravity adjustment mechanisms (4), which are connected to multiple drawers (2) one by one. The center of gravity adjustment mechanism (4) includes a gravity block (41) located below the drawer (2). A first slider (42) is fixedly installed on both the left and right sides of the gravity block (41). A guide rod (43) is passed through the first slider (42). The guide rod (43) is parallel to the front and back direction and is fixedly connected to the inner wall of the cabinet (1). A transmission component (44) is installed on the first slider (42). The first slider (42) is connected to the drawer (2) through the transmission component (44). The movement of the gravity block (41) drives the first slider (42) to move in the opposite direction through the transmission component (44). The heat dissipation mechanism (3) includes a fan (31) and multiple air pipes (32). The fan (31) is located on the top of the cabinet (1). The multiple air pipes (32) correspond one-to-one with multiple drawers (2). The air pipes (32) are fixedly passed through the rear side of the cabinet (1). A dustproof net (33) is installed inside the air pipes (32). The air pipes (32) are parallel to the guide rod (43). The air pipes (32) are located below the drawers (2). A push rod (34) is provided on the gravity block (41). The push rod (34) is coaxially arranged with the air pipes (32). The push rod (34) is located in front of the dustproof net (33). The transmission assembly (44) includes a connecting rod (44.1), a first pin (44.2), a second pin (44.3), and a third pin (44.4). The first pin (44.2), the second pin (44.3), and the third pin (44.4) are distributed sequentially from bottom to top. The connecting rod (44.1) is hinged to the first slider (42) through the first pin (44.2). The third pin (44.4) is fixedly mounted on the drawer (2). The second pin (44.3) is fixedly mounted on the inner wall of the cabinet (1). The connecting rod (44.1) is inclined. A sliding groove (44.5) is provided on the connecting rod (44.1). The second pin (44.3) and the third pin (44.4) are both matched with the sliding groove (44.5). The second pin (44.3) and the third pin (44.4) are both inserted into the sliding groove (44.5).

2. The intelligent low-voltage withdrawable switchgear according to claim 1, characterized in that: The drawer (2) is fixedly provided with a second slider (21) on both the left and right sides. The second slider (21) is connected with a slide rail (22), which is fixedly provided on the inner wall of the cabinet (1).

3. The intelligent low-voltage withdrawable switchgear according to claim 1, characterized in that: The diameter of the push rod (34) is equal to the inner diameter of the air tube (32).

4. The intelligent low-voltage withdrawable switchgear according to claim 1, characterized in that: The heat dissipation mechanism (3) also includes a collection box (35), which is located below the air pipe (32). The top of the collection box (35) is open, and the collection box (35) passes through the rear side of the cabinet (1). The collection box (35) is slidably connected to the cabinet (1), and the collection box (35) is fixedly connected to the gravity block (41).

5. The intelligent low-voltage withdrawable switchgear according to claim 4, characterized in that: The top of the collection box (35) is fitted with a sealing cover (36), which is located inside the cabinet (1) and is fixedly connected to the inner wall of the cabinet (1).

6. The intelligent low-voltage withdrawable switchgear according to claim 1, characterized in that: The bottom of the cabinet (1) is provided with four legs (5), which are arranged in a matrix.

7. The intelligent low-voltage withdrawable switchgear according to claim 6, characterized in that: The support leg (5) includes a pressure regulating box (51), a support tube (52), a suction cup (53), and multiple connecting components (54). The support tube (52) is vertically arranged, the pressure regulating box (51) is fixedly arranged at the top of the support tube (52), and the suction cup (53) is fixedly arranged at the bottom of the support tube (52). The cavity inside the pressure regulating box (51), the cavity inside the support tube (52), and the cavity inside the suction cup (53) are connected in sequence. Multiple connecting components (54) are evenly distributed around the support tube (52) in a circumferential direction. The connecting components (54) are connected to the pressure regulating box (51) and are arranged at the bottom of the cabinet (1).

8. The intelligent low-voltage withdrawable switchgear according to claim 7, characterized in that: The connecting assembly (54) includes a lifting plate (54.1), a lifting rod (54.2), and a pressure regulating rod (54.3). The pressure regulating rod (54.3) passes vertically through the bottom of the pressure regulating box (51). The pressure regulating rod (54.3) is slidably and sealed to the pressure regulating box (51). The top of the pressure regulating rod (54.3) is located in the cavity of the pressure regulating box (51). The lifting plate (54.1) is fixedly installed at the bottom of the pressure regulating rod (54.3). The lifting plate (54.1) is located between the pressure regulating box (51) and the suction cup (53). The lifting rod (54.2) is vertically installed. The bottom of the lifting rod (54.2) is fixedly installed at the top of the lifting plate (54.1). The top of the lifting rod (54.2) is fixedly installed at the bottom of the cabinet (1).

9. The intelligent low-voltage withdrawable switchgear according to claim 1, characterized in that: Multiple drawers (2) are evenly distributed from top to bottom.

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