A voltage transformer plug-in trolley cabinet

By designing support and limit components, the problem of sliding and tilting of the voltage transformer plug-in trolley cabinet during maintenance was solved, achieving stable support and safe maintenance of the trolley, reducing structural wear, and improving operational convenience and safety.

CN114784691BActive Publication Date: 2026-01-09HUANENG POWER INT INC YINGKOU POWER PLANT
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Patent Information

Application Number
CN202210430808.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-04-23
Publication Date
2026-01-09
Estimated Expiration
2042-04-23

AI Technical Summary

Technical Problem

The existing voltage transformer plug-in trolley cabinet is prone to sliding during maintenance, and it tilts to one side after being pulled out, resulting in structural wear and inconvenience in operation.

Method used

The system employs support and limiting components, including a support frame, reinforcing frame, ribs, telescopic rods, second rollers, support plates, limiting blocks, limiting grooves, torsion springs, cables, and pull rings. Through the synergistic action of these components, the handcart is stably supported and limited, preventing slippage and tilting.

Benefits of technology

It enables stable movement and safe maintenance of the handcart, reduces structural wear, and improves operational convenience and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a voltage transformer plug-in trolley cabinet and relates to the field of electric power engineering, which comprises a cabinet body, support feet connected to the two sides of the bottom of the cabinet body, three hand carts connected to the inside of the cabinet body, a handle connected to one side of the hand cart, and a limiting assembly arranged in the inside of the hand cart. When the handle is pulled to pull out the hand cart, the limiting block is pressed to rotate and compress the torsional spring, the first roller is in contact with the cabinet body, the abrasion between the limiting block and the cabinet body is reduced by the first roller, the service life of the structure is prolonged, the limiting block is in the corresponding position with the limiting groove after the hand cart is pulled out, the limiting block is driven into the limiting groove by the loss of pressure of the torsional spring, the hand cart is limited by the limiting block and the limiting groove, the sliding distance of the hand cart is prevented from being too large during the maintenance of the staff, and the operation is facilitated.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric power engineering, in particular to a voltage transformer plug-in trolley cabinet. BACKGROUND

[0002] The trolley cabinet is an alias of the draw-out type switch cabinet, and the handcart is the main component in the draw-out type switch cabinet, also known as a trolley, generally including PT handcart and switch handcart. Taking the switch handcart as an example, in the case of switch breaking, the handcart can be pulled out of the switch cabinet by hand after laying the guide rail, and the shape is similar to a drawer, so as to facilitate maintenance or replacement. The main elements on the handcart include circuit breakers, transformers and other primary electrical equipment.

[0003] The existing voltage transformer plug-in trolley cabinet usually makes the handcart slide in the cabinet body through the slide rail or the roller. After the trolley is moved out, it is difficult to limit the trolley, which causes the trolley to easily slide randomly when the worker maintains the electrical equipment such as the transformer in the trolley, thereby affecting the operation of the worker, and the use is relatively inconvenient. After the trolley is moved out, the weight of one side of the trolley is too large due to the fact that the electrical equipment is located in the interior of the trolley, so that one side of the trolley inclines downward, which easily aggravates the structure abrasion. At the same time, when the electrical equipment is maintained, the pressure on the trolley is easily aggravated, thereby easily aggravating the structure abrasion. When the trolley is pushed back, the worker needs to lift the trolley first and then push it in, which consumes a lot of effort, and the use is relatively inconvenient. SUMMARY

[0004] Therefore, the present application aims to provide a voltage transformer plug-in trolley cabinet to solve the technical problems that the trolley easily slides randomly and one side of the trolley inclines downward after being pulled out.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a voltage transformer plug-in trolley cabinet, comprising a cabinet body, support legs are connected to both sides of the bottom of the cabinet body, three handcarts are connected to the interior of the cabinet body, a handle is connected to one side of the handcart, a limiting assembly is arranged in the interior of the handcart, and a supporting assembly is arranged on one side of the cabinet body.

[0006] Through the above technical scheme, the supporting assembly facilitates the movement of the supporting frame through the arrangement of the second roller, supports one side of the handcart through the arrangement of the supporting plate, avoids the downward inclination of one side of the handcart caused by the disengagement of the supporting frame from the cabinet body through the arrangement of the telescopic rod, and avoids the bending deformation of the supporting frame caused by the excessive force on the structure through the arrangement of the reinforcing frame and the rib plate. The limiting assembly reduces the abrasion between the limiting block and the cabinet body through the arrangement of the first roller, thereby prolonging the service life of the structure. When the handcart is pulled out, the limiting block and the limiting groove are in a corresponding position, then the tension spring loses the pressure to drive the limiting block into the limiting groove, and the handcart is limited by the limiting block and the limiting groove to avoid the excessive sliding distance of the handcart during the maintenance of the worker, thereby affecting the operation.

[0007] Further, the support assembly comprises a support frame connected to one side of the cabinet body, a telescopic rod connected below one side of the support frame, a plurality of support plates connected to one side of the support frame, a reinforcing frame connected to one side of the top of the support frame, a rib plate connected to the other side of the top of the support frame, and a second roller connected to the bottom of the support frame.

[0008] By adopting the above technical scheme, when the handcart is pulled by the handle, the support frame is pulled because the height of one side of the handcart is greater than the height of the second groove on the support frame, the support frame is facilitated to move by the setting of the second roller, one side of the handcart is supported by the setting of the support plates, and the support frame is prevented from being separated from the cabinet body to cause one side of the handcart to incline downward by the setting of the telescopic rod.

[0009] Further, the limiting assembly comprises a limiting block connected to the inside of the handcart and a limiting groove opened on one side of the inside of the cabinet body, one side of the limiting block is connected with a first roller, the outer surface of the limiting block is connected with a torsion spring, one side of the limiting block is connected with a cable, one end of the cable is connected with a pull ring, and the top and bottom of the cable are connected with pulleys.

[0010] By adopting the above technical scheme, when the handcart is pulled out, the limiting block and the limiting groove are in position correspondence, then the torsion spring loses pressure to drive the limiting block into the limiting groove, and the handcart is limited by the limiting block and the limiting groove to avoid that the handcart slides too much to affect operation when a worker is repairing.

[0011] Further, a second groove is opened on the other side of the support frame, and the height of one side of the handcart is greater than the height of the second groove.

[0012] By adopting the above technical scheme, when the handcart is pulled by the handle, the support frame is pulled because the height of one side of the handcart is greater than the height of the second groove on the support frame, and one side of the handcart is supported by the setting of the support plates.

[0013] Further, the limiting block is rotationally connected to the handcart through a rotating shaft, and the length of the limiting groove is greater than the height of the limiting block.

[0014] By adopting the above technical scheme, when it is needed to push the handcart into the cabinet body, the cable is pulled to pull and rotate the limiting block to move out of the limiting groove, so that the limiting of the handcart is ended and the handcart can return to the cabinet body.

[0015] Further, the handcart is slidingly connected to the cabinet body, and the three handcarts are equidistantly distributed.

[0016] Through the above technical scheme, the trolley can be pulled out of the cabinet body by the handle, so that the electrical equipment inside the trolley can be maintained by the staff, which is simple and convenient and safer.

[0017] Further, the bottom side of the limiting block is in a slope shape, and the top side of the limiting block is in a trapezoidal shape.

[0018] Through the above technical scheme, when the trolley is pulled by the handle, the limiting block is rotated under pressure to compress the torsional spring, so that the first roller is in contact with the cabinet body, and the wear between the limiting block and the cabinet body is reduced by the first roller, thereby prolonging the service life of the structure.

[0019] Further, the bottom side of the supporting frame is provided with a first groove matched with the supporting leg, and the supporting frame is slidingly connected with the cabinet body.

[0020] Through the above technical scheme, when the trolley is pulled by the handle, the supporting frame is pulled because the height of one side of the trolley is greater than the height of the second groove on the supporting frame, and the supporting frame is moved by the second roller.

[0021] In summary, the present application mainly has the following beneficial effects:

[0022] The present application comprises a pull ring, a limiting block, a limiting groove, a torsional spring, a pull rope, a pulley and a first roller. When the trolley is pulled by the handle, the limiting block is rotated under pressure to compress the torsional spring, so that the first roller is in contact with the cabinet body, and the wear between the limiting block and the cabinet body is reduced by the first roller, thereby prolonging the service life of the structure. When the trolley is pulled out, the limiting block corresponds to the position of the limiting groove, and then the torsional spring loses pressure to drive the limiting block into the limiting groove, thereby limiting the trolley to avoid the trolley sliding too far during maintenance, which affects the operation. When the trolley needs to be pushed into the cabinet, the pull ring is pulled to pull the limiting block out of the limiting groove, thereby ending the limiting of the trolley so that the trolley can return to the cabinet, which is convenient for limiting the trolley to avoid the trolley sliding too far during maintenance, which affects the operation.

[0023] The present application comprises a supporting frame, a reinforcing frame, a rib plate, a second roller, an extension rod and a supporting plate. When the trolley is pulled by the handle, the supporting frame is pulled because the height of one side of the trolley is greater than the height of the second groove on the supporting frame, and the supporting frame is moved by the second roller. At the same time, the one side of the trolley is supported by the supporting plate, and the extension rod is arranged to avoid the supporting frame from being separated from the cabinet, which causes the one side of the trolley to incline downward. At the same time, the reinforcing frame and the rib plate support the supporting frame to distribute the pressure to avoid the supporting frame from being bent and deformed due to excessive stress. It is convenient to support the one side of the trolley to avoid the trolley from being inclined downward due to pressure after being pulled out, which causes wear. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the support frame structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the side structure of the support frame of the present invention;

[0028] Figure 5 For the present invention Figure 2 Enlarged view of the structure at point A in the image;

[0029] Figure 6 For the present invention Figure 2 Enlarged view of the structure at point B in the image.

[0030] In the diagram: 1. Cabinet body; 2. Support leg; 3. Handle; 4. Support assembly; 401. Support frame; 402. Reinforcing frame; 403. Rib plate; 404. First roller; 405. Telescopic rod; 406. Support plate; 5. Limiting assembly; 501. Pull ring; 502. Limiting block; 503. Limiting groove; 504. Torsion spring; 505. Cable; 506. Pulley; 6. Handcart. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of the present invention will now be described.

[0033] A type of voltage transformer plug-in cabinet, such as Figure 1 , 2 As shown in Figures 5 and 6, the cabinet includes a cabinet body 1. Support legs 2 are connected to both sides of the bottom of the cabinet body 1. Three handcarts 6 are connected inside the cabinet body 1. The handcarts 6 are slidably connected to the cabinet body 1 and the three handcarts 6 are equidistantly distributed. A handle 3 is connected to one side of the handcart 6. A limit component 5 is provided inside the handcart 6 to limit the handcart 6 and prevent it from sliding too far during maintenance by the staff, which would affect the operation. A support component 4 is provided on one side of the cabinet body 1 to support one side of the handcart 6 and prevent the handcart 6 from tilting downwards due to pressure after being pulled out, which would cause wear.

[0034] See Figure 1 , 2, 3, 4 and 6, the support assembly 4 comprises a support frame 401 connected to one side of the cabinet body 1, a telescopic rod 405 connected below one side of the support frame 401, a plurality of support plates 406 connected to one side of the support frame 401, a reinforcing frame 402 connected to one side of the top of the support frame 401, a rib plate 403 connected to the other side of the top of the support frame 401, a second roller connected to the bottom of the support frame 401, a second recess formed in the other side of the support frame 401, and the height of one side of the handcart 6 is greater than the height of the second recess, a first recess formed in one side of the bottom of the support frame 401 and matched with the support leg 2, and the support frame 401 is slidingly connected with the cabinet body 1, so as to conveniently support one side of the handcart 6 to avoid the handcart 6 from being inclined and abraded under the influence of pressure after being pulled out.

[0035] Referring to Figure 2 , 5 and 6, the limiting assembly 5 comprises a limiting block 502 connected to the inside of the handcart 6 and a limiting groove 503 formed in one side of the inside of the cabinet body 1, one side of the limiting block 502 is connected with a first roller 404, the outer surface of the limiting block 502 is connected with a torsion spring 504, one side of the limiting block 502 is connected with a pull rope 505, one end of the pull rope 505 is connected with a pull ring 501, the top and bottom of the pull rope 505 are both connected with a pulley 506, the limiting block 502 is rotationally connected with the handcart 6 through a rotating shaft, the length of the limiting groove 503 is greater than the height of the limiting block 502, one side of the bottom of the limiting block 502 is in a slope shape, and one side of the top of the limiting block 502 is in a trapezoidal shape, so as to conveniently limit the handcart 6 to avoid the handcart 6 from sliding too far and affecting the operation when the staff is overhauling.

[0036] The implementation principle of the embodiment is that: first, the staff can pull the handcart out of the cabinet body 1 through the handle 3, and when the handcart 6 is pulled through the handle 3, the limiting block 502 is pressed to rotate and compress the torsional spring 504, so that the first roller 404 on the limiting block 502 is in contact with the cabinet body 1, the setting of the first roller 404 reduces the wear between the limiting block 502 and the cabinet body 1, thereby prolonging the service life of the structure, and at the same time, the height of one side of the handcart 6 is greater than the height of the second groove on the support frame 401, so that the support frame 401 is pulled, the setting of the second roller on the support frame 401 facilitates the movement of the support frame 401, and the setting of the support plate 406 supports one side of the handcart 6 to avoid the inclination of one side of the handcart 6, and the setting of the telescopic rod 405 avoids the separation of the support frame 401 from the cabinet body 1, which causes the inclination of one side of the handcart 6, and the support of the support frame 401 by the reinforcing frame 402 and the rib plate 403 divides the pressure to avoid the bending deformation of the support frame 401 due to excessive stress, when the handcart 6 is pulled out, the limiting block 502 corresponds to the position of the limiting groove 503, then the torsional spring 504 loses pressure to drive the limiting block 502 into the limiting groove 503, and the limiting block 502 and the limiting groove 503 limit the handcart 6 to avoid the handcart 6 from sliding too far during maintenance of the staff, affecting operation, when the handcart 6 needs to be pushed into the cabinet body 1, the staff pulls the pull ring 501 to make the pull rope 505 pull and pull the limiting block 502 to rotate and move out of the limiting groove 503, thereby ending the limiting of the handcart 6 so that the handcart 6 can return to the cabinet body 1.

[0037] Although the embodiments of the present application have been shown and described, the specific embodiments are merely illustrative of the present application, and are not intended to limit the application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A voltage transformer plug-in kiosk cabinet comprising a cabinet body (1), characterized in that: The bottom of the cabinet (1) is connected with support feet (2), the inside of the cabinet (1) is connected with three hand carts (6), one side of the hand cart (6) is connected with a handle (3), the inside of the hand cart (6) is provided with a limiting assembly (5), the limiting assembly (5) comprises a limiting block (502) connected to the inside of the hand cart (6) and a limiting groove (503) opened on one side of the inside of the cabinet (1), the bottom side of the limiting block (502) is inclined, and the top side of the limiting block (502) is trapezoidal, the limiting block (502) is rotatably connected with the hand cart (6) through an axis, the length of the limiting groove (503) is greater than the height of the limiting block (502), one side of the limiting block (502) is connected with a first roller (404), the outer surface of the limiting block (502) is connected with a torsion spring (504), one side of the limiting block (502) is connected with a cable (505), one end of the cable (505) is connected with a pull ring (501), the top and bottom of the cable (505) are connected with pulleys (506), one side of the cabinet (1) is provided with a supporting assembly (4), the supporting assembly (4) comprises a supporting frame (401) connected to one side of the cabinet (1), a first recess compatible with the support foot (2) is opened on the bottom side of the supporting frame (401), and the supporting frame (401) is slidably connected with the cabinet (1), a telescopic rod (405) is connected below one side of the supporting frame (401), a plurality of supporting plates (406) are connected to one side of the supporting frame (401), a second recess is opened on the other side of the supporting frame (401), and the height of one side of the hand cart (6) is greater than the height of the second recess, a reinforcing frame (402) is connected to the top side of the supporting frame (401), a rib plate (403) is connected to the other side of the top of the supporting frame (401), and a second roller is connected to the bottom of the supporting frame (401).

2. A voltage transformer bay insert cabinet according to claim 1, characterized in that: The hand cart (6) is slidably connected with the cabinet (1), and the three hand carts (6) are equidistantly distributed.

Citation Information

Patent Citations

  • Locking device for circuit breaker handcart position

    CN114050496A

  • Auxiliary cart for installation of power distribution cabinet

    CN214280660U

  • Voltage transformer plug-in trolley cabinet

    CN218887944U