Remote push-and-pull drawer device for power distribution room

Abstract

The utility model belongs to the technical field of power distribution cabinets, and particularly relates to a remote push-and-pull drawer device for a power distribution room, which comprises a drawer back plate. The side wall of the drawer back plate is fixedly connected with a drawer spacing plate; cabinet body drawers are placed on the drawer spacing boards; a lead screw stepping motor is installed on the side, away from the drawer partition plate, of the drawer back plate. The side wall of the cabinet drawer is fixedly connected with a lead screw copper nut; the output end of the lead screw stepping motor is fixedly connected with an adjusting lead screw. The adjusting lead screw penetrates through the middle of the drawer back plate and is in threaded connection with the lead screw copper nut, the safety isolation distance of the power plug-in is measured through the displacement sensor, then a distance signal is transmitted back to the lead screw stepping motor controller, closed-loop control of lead screw stepping motor driving is achieved, accuracy and high efficiency are achieved, meanwhile, intrinsic safety in the power failure process is achieved, and the safety of the drawer is guaranteed. The lead screw stepping motor is adopted as a power element, installation is easy and convenient, large axial loads can be borne, and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of switchgear, specifically a remote push-pull drawer device for switch room. BACKGROUND

[0002] With the rapid development of intelligent manufacturing and Internet of Things technology, remote push-pull drawers have been widely used as a new technology, greatly improving production efficiency and safety level. As a new device that can replace manual work, remote push-pull drawer devices have gradually entered industrial and mining enterprises

[0003] The Chinese invention patent with publication number CN116154662A discloses a device for automatic push-pull drawer of switchgear, which includes a bracket, a stepper motor, a coupling, a lead screw, a controller, and a nut seat. The bracket is arranged on the switchgear, the coupling is installed on the bracket, the lead screw and the stepper motor are arranged at both ends of the shaft coupling, the output end of the stepper motor is electrically connected with the coupling, the driver of the stepper motor is connected with the controller, the controller controls the rotation direction and distance of the stepper motor through the driver of the stepper motor, the inside bottom of the drawer is provided with a nut seat, the nut seat is provided with a screw hole matched with the lead screw, the axis of the screw hole and the axis of the lead screw are in the same horizontal plane, and the lead screw passes through the through hole on the switchgear and the nut seat in sequence and is connected.

[0004] However, the above device only uses the driver to control the rotation distance of the stepper motor. This control method is open-loop control. When the stepper motor is blocked and out of step, it will cause the distance to be inaccurate.

[0005] Therefore, the utility model provides a remote push-pull drawer device for switch room. UTILITY MODEL CONTENTS

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art.

[0007] The utility model discloses a technical scheme that solves its technical problem is adopted: a kind of remote push-pull drawer device for distribution room, including drawer backplate;Drawer backplate side wall is fixedly connected with drawer partition plate;Drawer partition plate is placed with cabinet drawer;The side of drawer backplate away from drawer partition plate is equipped with lead screw stepper motor;Cabinet drawer side wall is fixedly connected with lead screw copper nut;Lead screw stepper motor output is fixedly connected with adjusting lead screw;Adjusting lead screw passes through drawer backplate middle part, and is connected with lead screw copper nut thread;Lead screw stepper motor bottom is equipped with displacement sensor, and the safe isolation distance of power plug-in is measured by displacement sensor, and then distance signal is transmitted back lead screw stepper motor controller, realizes the closed-loop control of lead screw stepper motor drive, accurate and efficient, while realizing the essential safety of power-off process.

[0008] Preferably, the drawer backplate side wall is fixedly connected with a motor support; the lead screw stepper motor is fixedly connected to the side wall of the motor support; the displacement sensor is fixedly connected to the side wall of the motor support; the displacement sensor is arranged directly below the lead screw stepper motor, and the above structure ensures the safety gap without changing the position of the power plug-in, greatly reduces the workload, and improves the working stability.

[0009] Preferably, the cabinet drawer side wall is rotatably connected with a plurality of rollers, which are symmetrically arranged on the cabinet drawer; the surfaces of the rollers and the drawer partition plate are in contact with each other, and the above structure reduces wear and improves the accuracy of movement, making the remote push-pull control of the cabinet drawer more accurate.

[0010] Preferably, the cabinet drawer side wall is fixedly connected with a fixing sleeve ring; the fixing sleeve ring is arranged on the side wall of the cabinet drawer close to the drawer backplate; the fixing sleeve ring is arranged on the lead screw copper nut; a cleaning sponge is fixedly connected to the inner side wall of the fixing sleeve ring; the cleaning sponge and the surface of the adjusting lead screw are in contact with each other, and the above structure reduces dust accumulation for a long time, increases the cleanliness of the surface of the adjusting lead screw, and makes the movement of the cabinet drawer more stable.

[0011] Preferably, a drainage groove is formed in the fixing sleeve ring; a through hole is formed in the inner side wall of the drainage groove, and the above structure allows for more thorough cleaning of the surface of the adjusting lead screw.

[0012] Preferably, a sealing cover is arranged on the drainage groove, which reduces the evaporation of cleaning liquid and the falling of dust, making the work of the fixing sleeve ring more stable.

[0013] The utility model has the following beneficial effects:

[0014] 1. The remote push-pull drawer device for power distribution rooms described in this utility model measures the safety isolation distance of the power plug through a displacement sensor, and then transmits the distance signal back to the lead screw stepper motor controller to realize closed-loop control of the lead screw stepper motor drive. It is precise and efficient, and ensures inherent safety during power outages. Furthermore, the use of a lead screw stepper motor as the power element makes installation simple and allows it to withstand large axial loads, thus increasing the service life of the device.

[0015] 2. The remote push-pull drawer device for power distribution rooms described in this utility model uses a motor bracket fixed to the back panel of the drawer, which centrally mounts the lead screw stepper motor and displacement sensor on the motor bracket. This has better advantages in the renovation of old power distribution rooms. Without changing the position of the power plug, it ensures a safe clearance, greatly reduces the workload, and improves the working stability. At the same time, the vibration of the lead screw stepper motor and displacement sensor during operation is isolated by the motor bracket, reducing the impact on the inside of the cabinet and making it safer. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the motor bracket in this utility model;

[0019] Figure 3 This is a schematic diagram of the adjusting screw in this utility model;

[0020] Figure 4 This is a schematic diagram of the cooperation structure between the cleaning sponge and the adjusting screw in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the fixing collar in this utility model;

[0022] In the diagram: 1. Drawer divider; 2. Cabinet drawer; 3. Motor bracket; 4. Lead screw stepper motor; 5. Lead screw copper nut; 6. Adjusting lead screw; 7. Displacement sensor; 8. Drawer back panel; 9. Roller; 10. Fixing collar; 11. Cleaning sponge; 12. Drainage channel; 13. Through hole; 14. Sealing cover. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 2As shown in the embodiment of this utility model, a remote push-pull drawer device for a power distribution room includes a drawer back panel 8; a drawer partition 1 is fixedly connected to the side wall of the drawer back panel 8; a cabinet drawer 2 is placed on the drawer partition 1; a lead screw stepper motor 4 is installed on the side of the drawer back panel 8 away from the drawer partition 1; a lead screw copper nut 5 is fixedly connected to the side wall of the cabinet drawer 2; an adjusting lead screw 6 is fixedly connected to the output end of the lead screw stepper motor 4; the adjusting lead screw 6 passes through the middle of the drawer back panel 8 and is threadedly connected to the lead screw copper nut 5; a displacement sensor 7 is installed at the bottom of the lead screw stepper motor 4. During operation, the lead screw stepper motor is controlled by a controller. 4. Remote control is enabled to control the rotation direction and distance of the lead screw stepper motor 4, allowing on-site management personnel to use digital devices to remotely and automatically disconnect and connect the power plugs in the drawers of the power distribution cabinet to the busbars, forming complete electrical isolation of the equipment. This is fast and safe. The displacement sensor 7 measures the safe isolation distance of the power plugs and then transmits the distance signal back to the lead screw stepper motor 4 controller, realizing closed-loop control of the lead screw stepper motor 4 drive. This is precise and efficient, while ensuring inherent safety during power outages. Furthermore, using the lead screw stepper motor 4 as the power element makes installation simple and allows it to withstand large axial loads, increasing the service life of the device.

[0025] like Figures 1 to 4 As shown, a motor bracket 3 is fixedly connected to the side wall of the drawer back panel 8; the lead screw stepper motor 4 is fixedly connected to the side wall of the motor bracket 3; the displacement sensor 7 is fixedly connected to the side wall of the motor bracket 3; the displacement sensor 7 is located directly below the lead screw stepper motor 4. During operation, by fixing the motor bracket 3 to the drawer back panel 8, the lead screw stepper motor 4 and the displacement sensor 7 are centrally mounted on the motor bracket 3. This method has better advantages in the renovation of old power distribution rooms. Without changing the position of the power plug, it ensures a safe clearance, greatly reduces the workload, and improves the stability of operation. At the same time, the vibration of the lead screw stepper motor 4 and the displacement sensor 7 during operation is isolated by the motor bracket 3, reducing the impact on the inside of the cabinet and making it safer.

[0026] like Figures 1 to 2 As shown, the side wall of the cabinet drawer 2 is rotatably connected to rollers 9; multiple rollers 9 are provided and are symmetrically arranged on the cabinet drawer 2; the surface of the rollers 9 and the surface of the drawer partition 1 are in contact with each other. During operation, the rollers 9 on the cabinet drawer 2 make it easier to push and pull the cabinet drawer 2, reduce some of the frictional resistance between the cabinet drawer 2 and the drawer partition 1 when the cabinet drawer 2 moves, reduce wear and improve the accuracy of movement, and make the remote push and pull control of the cabinet drawer 2 more precise.

[0027] like Figures 1 to 5As shown, the cabinet drawer 2 side wall is fixed with a fixed sleeve ring 10; the fixed sleeve ring 10 is located on the side wall of the cabinet drawer 2 close to the back plate 8; the fixed sleeve ring 10 is provided on the copper nut 5 of the lead screw; the inner side wall of the fixed sleeve ring 10 is fixed with a cleaning sponge 11; the cleaning sponge 11 and the surface of the adjusting lead screw 6 are in contact with each other, and during work, by providing the fixed sleeve ring 10 and the cleaning sponge 11 on the side wall of the cabinet drawer 2, and by using the lead screw stepper motor 4 to drive the adjusting lead screw 6 to rotate and push the cabinet drawer 2 to move, the cleaning sponge 11 sleeved on the adjusting lead screw 6 can clean the surface of the adjusting lead screw 6, reduce the accumulation of dust for a long time, increase the cleanliness of the surface of the adjusting lead screw 6, and make the movement of the cabinet drawer 2 more stable.

[0028] As shown in Figures 1 to 5 The fixed sleeve ring 10 is internally provided with a drainage groove 12; the inner side wall of the drainage groove 12 is provided with a through hole 13, and during work, the staff can periodically fill cleaning liquid into the drainage groove 12, so that the cleaning liquid flows to the cleaning sponge 11 through the through hole 13, and then the surface of the adjusting lead screw 6 is cleaned, so that the cleaning is more sufficient.

[0029] As shown in Figure 5 The drainage groove 12 is provided with a sealing cover 14, and during work, the sealing cover 14 is installed to seal the drainage groove 12, reduce the volatilization of the cleaning liquid and the falling of dust, and make the work of the fixed sleeve ring 10 more stable.

[0030] Working principle: by using the controller to remotely control the lead screw stepper motor 4, and then controlling the rotating direction and rotating distance of the lead screw stepper motor 4, the on-site management staff can use digital devices to remotely and automatically disconnect and connect the power plug-in and the busbar in the drawer of the power distribution cabinet, form complete electrical energy isolation of the equipment, be fast and safe, measure the safe isolation distance of the power plug-in by the displacement sensor 7, then transmit the distance signal back to the lead screw stepper motor 4 controller, realize closed-loop control of the lead screw stepper motor 4 drive, be accurate and efficient, realize the intrinsic safety of the power-off process, and use the lead screw stepper motor 4 as a power element, which is easy to install and can bear a large axial load, thereby increasing the service life of the device.

[0031] By fixing the motor support 3 on the drawer back plate 8, the lead screw stepper motor 4 and the displacement sensor 7 are concentratedly installed on the motor support 3, which has better advantages in the transformation of old power distribution rooms, ensures the safety gap without changing the position of the power plug-in, greatly reduces the workload, improves the work stability, and at the same time, the vibration of the lead screw stepper motor 4 and the displacement sensor 7 during work is separated by the motor support 3, which reduces the influence on the inside of the cabinet and is safer.

[0032] Through being equipped with the roller 9 on the cabinet drawer 2, the push and pull of the cabinet drawer 2 can be more convenient, the partial friction resistance between the cabinet drawer 2 and the drawer spacing plate 1 when moving is reduced, the abrasion is reduced while the moving precision is improved, the remote push and pull control of the cabinet drawer 2 is more accurate.

[0033] Through being equipped with the fixed sleeve ring 10 and the cleaning sponge 11 on the side wall of the cabinet drawer 2, when the cabinet drawer 2 is pushed and pulled by the adjusting lead screw 6 driven by the lead screw stepping motor 4, the cleaning sponge 11 sleeved on the adjusting lead screw 6 can clean the surface of the adjusting lead screw 6, the dust accumulation for a long time is reduced, the cleanliness of the surface of the adjusting lead screw 6 is increased, and the movement of the cabinet drawer 2 is more stable.

[0034] Through making the staff fill the cleaning liquid into the drainage groove 12 regularly, the cleaning liquid flows to the cleaning sponge 11 through the through hole 13, and then the surface of the adjusting lead screw 6 is cleaned, so that the cleaning is more sufficient.

[0035] Through the sealing cover 14, the drainage groove 12 is sealed, the volatilization of the cleaning liquid and the falling of the dust are reduced, and the work of the fixed sleeve ring 10 is more stable.

[0036] The basic principle, main features and advantages of the utility model are shown and described above. The technical personnel in the industry should understand that the utility model is not limited by the above examples, and the above examples and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A remote push-pull drawer device for power distribution rooms, comprising a drawer back plate (8); a drawer partition plate (1) is fixed to the side wall of the drawer back plate (8); a cabinet drawer (2) is placed on the drawer partition plate (1); characterized in that: The drawer back plate (8) is provided with a lead screw stepping motor (4) on the side away from the drawer partition plate (1); the cabinet drawer (2) is provided with a lead screw brass nut (5) on the side wall; the output end of the lead screw stepping motor (4) is provided with an adjusting lead screw (6); the adjusting lead screw (6) penetrates the middle part of the drawer back plate (8) and is threadedly connected with the lead screw brass nut (5); and the bottom of the lead screw stepping motor (4) is provided with a displacement sensor (7).

2. A remote push-pull drawer device for an electrical distribution room according to claim 1, characterized in that: The side wall of the drawer back plate (8) is provided with a motor bracket (3); the lead screw stepping motor (4) is fixed on the side wall of the motor bracket (3); the displacement sensor (7) is fixed on the side wall of the motor bracket (3); and the displacement sensor (7) is arranged directly below the lead screw stepping motor (4).

3. A remote push-pull drawer device for an electrical distribution room according to claim 2, characterized in that: The side wall of the cabinet drawer (2) is rotatably connected with a plurality of rollers (9), which are symmetrically arranged on the cabinet drawer (2); and the surfaces of the rollers (9) and the surface of the drawer partition plate (1) are in contact with each other.

4. A remote push-pull drawer device for an electrical distribution room according to claim 3, characterized in that: The side wall of the cabinet drawer (2) is provided with a fixed sleeve ring (10); the fixed sleeve ring (10) is arranged on the side wall of the cabinet drawer (2) close to the drawer back plate (8); the fixed sleeve ring (10) is arranged on the lead screw brass nut (5); the inner side wall of the fixed sleeve ring (10) is provided with a cleaning sponge (11); and the cleaning sponge (11) and the surface of the adjusting lead screw (6) are in contact with each other.

5. A remote push-pull drawer device for an electrical distribution room according to claim 4, characterized in that: The fixed sleeve ring (10) is internally provided with a drainage groove (12); and the inner side wall of the drainage groove (12) is provided with a through hole (13).

6. A remote push-pull drawer device for an electrical distribution room according to claim 5, characterized in that: The drainage groove (12) is provided with a sealing cover (14).

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