A draw-out type double power automatic transfer switch convenient for maintenance

Abstract

The utility model relates to a kind of pull-out type double power automatic transfer switch convenient to overhaul, to solve the current double power automatic transfer switch in the process of overhaul needs staff to open the door of distribution box, handheld tool is inserted into the inside of distribution box and is overhauled, and the internal space of distribution box is limited, not enough convenient when overhauling, and due to the weight of double power automatic transfer switch is heavy, so the structure of supporting double power automatic transfer switch is prone to deformation technical problem, including distribution box body, the inside fixed connection of distribution box body has two groups of support plate, two groups The support plate is connected with two groups of mounting plate by two groups of pull-out mechanism, the upper surface of two groups The mounting plate is respectively fixedly connected in the mounting end of bypass switch and automatic transfer switch, the utility model is designed by pulling mechanism and support mechanism, to facilitate the convenience and stability of double power automatic transfer switch in the process of overhaul and use.

Description

Technical Field

[0001] This utility model relates to the field of transfer switches, specifically a pull-out dual-power automatic transfer switch that is easy to maintain. Background Technology

[0002] The NSD3ATS-VB with bypass is designed for critical power applications such as data centers, airports, finance, telecommunications, and semiconductor factories. Its biggest advantage is the ability to mitigate the risk of power outages caused by ATS mechanical failures in advance or on-site. When an ATS fails and requires maintenance, many critical power applications, such as data centers, cannot support prolonged power outages, and are limited by UPS backup time (generally no more than 30 minutes). The NSD3ATS-VB can solve the problem of manually switching the load to the bypass switch in advance when an ATS fails and requires on-site maintenance. The faulty ATS can be easily moved out for maintenance via a rail or its own pulleys. After maintenance, the transfer switch can be moved back to the test position for functional testing and normal power supply can be restored. Throughout the entire maintenance process, from bypassing the load, maintaining the transfer switch, testing the transfer switch's function, and restoring normal operation, the load can maintain normal power supply.

[0003] According to published patent 202121847666.2, a dual-power automatic transfer switch that is easy to maintain includes a base. The front end of the limiting block is fixedly connected to the top of the left and right sides of the rear end of the mounting plate. Multiple second LED lights are fixedly connected to the top of the front end of the control panel. Two maintenance sockets are provided in the middle of the front end of the control panel near the adjustment handle. Four first LED lights are fixedly connected to the middle of the front end of the main power supply and the backup power supply. In the process of realizing this utility model, the inventor found that at least the following problems in the prior art have not been solved. Through the maintenance sockets, wiring sockets, first switches and second switches on the control panel, it is convenient for staff to inspect the device and ensure the normal operation of the equipment. Staff can monitor the operating status of the device through the first LED lights, second LED lights and controller, which solves the problem of low inspection efficiency. In use, traditional dual-power automatic transfer switches require staff to open the door of the distribution box and reach into the inside of the distribution box with hand tools for maintenance. However, the internal space of the distribution box is limited, which is not convenient for maintenance. In addition, due to the weight of the dual-power automatic transfer switch, the structure supporting the dual-power automatic transfer switch is prone to deformation. Therefore, a new technical solution needs to be designed to address this issue. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a pull-out type dual power automatic transfer switch that is easy to maintain. This solves the technical problem that current dual power automatic transfer switches require workers to open the distribution box door and reach into the distribution box with hand tools for maintenance, which is inconvenient due to the limited space inside the distribution box. Furthermore, the dual power automatic transfer switch is heavy, which makes the supporting structure prone to deformation.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a pull-out type dual power automatic transfer switch that is easy to maintain is designed, including a distribution box. Two sets of support plates are fixedly connected inside the distribution box. The two sets of support plates are connected to two sets of mounting plates through two sets of pull-out mechanisms. The upper surfaces of the two sets of mounting plates are respectively fixedly connected to the mounting ends of the bypass switch and the automatic transfer switch. A track groove is opened at the bottom of the mounting plate, and a support mechanism is installed inside the track groove.

[0006] Preferably, the extraction mechanism includes a pull-out groove and a slider, the pull-out groove being located inside the two sets of support plates, and one end of the slider being fixedly connected to the bottom of the mounting plate.

[0007] Preferably, the size of the slider matches the size of the pull-out groove and is slidably connected to its inner wall, and the bottom surface of the mounting plate contacts the upper surface of the support plate and is slidably connected to its surface.

[0008] Preferably, the support mechanism includes a movable block that is slidably connected inside the track groove.

[0009] Preferably, a fixed shaft is fixedly connected inside the movable block, a torsion spring is sleeved on the outside of the fixed shaft, and a movable support arm is connected to the outside of the torsion spring and the fixed shaft through a through hole.

[0010] Preferably, one end of the torsion spring is fixedly connected to the outer surface of the fixed shaft, and the other end of the torsion spring is fixedly connected to the inner wall of the through hole, the through hole penetrating one end of the movable support arm.

[0011] Preferably, a sleeve plate is fixedly connected to the other end of the movable support arm, and an extension plate is slidably connected inside the sleeve plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: When the bypass switch or automatic transfer switch needs to be removed from the inside of the distribution box for maintenance, the operator can directly pull out the bypass switch or automatic transfer switch. At this time, the bypass switch or automatic transfer switch will drive the slider on the mounting plate to move in the pull groove of the support plate. Then the bypass switch or automatic transfer switch will follow the mounting plate to move out of the inside of the distribution box, thereby improving the convenience of maintenance of the bypass switch or automatic transfer switch. When the mounting plate, along with the bypass switch or automatic transfer switch, is pulled out of the distribution box, the torsion spring will generate a rebound force on the movable support arm. At this time, the movable support arm will rotate outside the fixed shaft, thus allowing the movable support arm to automatically flip out from inside the track groove. When the angle between the movable support arm and the moving block is 120 degrees, the movable support arm will stop flipping. Then, the movable support arm will drive the moving block to be pulled from one end of the track groove to the other end. Then, the mounting plate and the extension plate will support the mounting plate, which helps to improve the stability of the bypass switch or automatic transfer switch during maintenance. After the bypass switch and automatic transfer switch are maintained, the moving block on the movable support arm will be reset. Then, as the mounting plate moves into the distribution box, the movable support arm will be retracted into the track groove. During this process, the torsion spring will be compressed. When the mounting plate is completely retracted into the distribution box, the movable support arm will be pushed by the sleeve plate, so that the movable support arm is completely retracted into the track groove, allowing the sleeve plate to fit against the end face of the mounting plate, which helps to improve the overall integrity and aesthetics of the dual power automatic transfer switch during use. Before the movable support arm flips, the operator first pulls the extension plate out halfway from the inside of the sleeve plate. After the movable support arm flips, the extension plate will rest against the edge of the distribution box, thus supporting the mounting plate along with the bypass switch and automatic transfer switch. This prevents the mounting plate from deforming due to the weight of the bypass switch or automatic transfer switch over a long period of time, and improves the protective effect of the pull-out mechanism during use. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the pull-out mechanism of this utility model; Figure 4 This is a schematic diagram of the support plate structure of this utility model; Figure 5 This is a schematic diagram of the mounting plate mechanism of this utility model; Figure 6 This is a diagram showing the rotating state of the movable support arm of this utility model; Figure 7 This is an exploded view of the movable block of this utility model.

[0014] In the diagram: 1. Distribution box; 11. Support plate; 12. Mounting plate; 13. Bypass switch; 14. Automatic transfer switch; 15. Track groove; 16. Pull-out groove; 17. Slider; 18. Moving block; 19. Fixed shaft; 2. Torsion spring; 21. Through hole; 22. Movable support arm; 23. Sleeve plate; 24. Extension plate. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example 1: A pull-out type dual-power automatic transfer switch that is easy to maintain, see [link / reference] Figures 1 to 7 The system includes a distribution box 1, inside which two sets of support plates 11 are fixedly connected. The two sets of support plates 11 are connected to two sets of mounting plates 12 via two sets of pull-out mechanisms. Each pull-out mechanism includes a pull-out groove 16 and a slider 17. The pull-out groove 16 is located inside the two sets of support plates 11. One end of the slider 17 is fixedly connected to the bottom of the mounting plate 12. The size of the slider 17 matches the size of the pull-out groove 16 and is slidably connected to its inner wall. The bottom surface of the mounting plate 12 contacts the upper surface of the support plate 11 and is slidably connected to its surface. When the bypass switch 13 or automatic transfer switch 14 needs to be removed from the inside of the distribution box 1 for maintenance, the operator can directly pull out the bypass switch 13 or automatic transfer switch 14. At this time, the bypass switch 13 or automatic transfer switch 14 will drive the slider 17 on the mounting plate 12 to move in the pull-out groove 16 of the support plate 11. Then the bypass switch 13 or automatic transfer switch 14 will be moved out of the inside of the distribution box 1 along with the mounting plate 12, which will help improve the convenience of maintenance of the bypass switch 13 or automatic transfer switch 14. It should be noted that a baffle is installed at one end of the support plate 11 to block the pull-out groove 16 and prevent the slider 17 from moving out of the pull-out groove 16. The upper surfaces of the two sets of mounting plates 12 are respectively fixedly connected to the mounting ends of the bypass switch 13 and the automatic transfer switch 14. A track groove 15 is provided at the bottom of the mounting plate 12. A support mechanism is installed inside the track groove 15. The support mechanism includes a moving block 18, which is slidably connected inside the track groove 15. A fixed shaft 19 is fixedly connected inside the moving block 18. A torsion spring 2 is sleeved on the outside of the fixed shaft 19. A movable support arm 22 is connected to the torsion spring 2 and the outside of the fixed shaft 19 through a through hole 21. One end of the spring 2 is fixedly connected to the outer surface of the fixed shaft 19, and the other end of the torsion spring 2 is fixedly connected to the inner wall of the through hole 21. The through hole 21 passes through one end of the movable support arm 22. When the mounting plate 12, together with the bypass switch 13 or the automatic transfer switch 14, is pulled out from inside the distribution box 1, the torsion spring 2 will generate a rebound force on the movable support arm 22. At this time, the movable support arm 22 will rotate outside the fixed shaft 19, thereby allowing the movable support arm 22 to automatically flip out from inside the track groove 15. When the angle of rotation of the movable block 18 is 120 degrees, the movable support arm 22 will stop rotating. Then, the movable support arm 22 will drive the movable block 18 to be pulled from one end of the track groove 15 to the other end. Then, the sleeve plate 23 and the extension plate 24 will support the mounting plate 12, which will help improve the stability of the bypass switch 13 or the automatic transfer switch 14 during maintenance. After the maintenance of the bypass switch 13 and the automatic transfer switch 14 is completed, the movable block 18 on the movable support arm 22 will be reset. Then, during the process of moving the mounting plate 12 into the distribution box 1, the movable support arm 22 will be stored inside the track groove 15. During this process, the torsion spring 2 will be compressed. When the mounting plate 12 is completely stored inside the distribution box 1, the sleeve plate 23 will push the movable support arm 22 so that the movable support arm 22 is completely stored in the track groove 15, so that the sleeve plate 23 fits against the end face of the mounting plate 12, which will help improve the overall integrity and aesthetics of the dual power automatic transfer switch 14 during use.

[0016] It should be noted that the angle range of the movable support arm 22 and the moving block 18 is 0-120 degrees; The end face shape of the track groove 15 is the same as the end face shape of the movable block 18, and the groove near the end of the sleeve plate 23 is the same size as the end face of the movable support arm 22.

[0017] For details, see Figures 5 to 7The other end of the movable support arm 22 is fixedly connected to a sleeve plate 23. An extension plate 24 is slidably connected inside the sleeve plate 23. Before the movable support arm 22 is flipped, the operator first pulls the extension plate 24 out halfway from inside the sleeve plate 23. After the movable support arm 22 is flipped, the extension plate 24 will abut against the edge of the distribution box 1, thereby supporting the mounting plate 12 together with the bypass switch 13 and the automatic transfer switch 14. This avoids the mounting plate 12 from deforming due to bearing the weight of the bypass switch 13 or the automatic transfer switch 14 for a long time, which helps to improve the protective effect of the pull-out mechanism during use.

[0018] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0019] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A pull-out type dual-power automatic transfer switch that is easy to maintain, comprising a distribution box (1), characterized in that, The distribution box (1) is internally fixedly connected to two sets of support plates (11). The two sets of support plates (11) are connected to two sets of mounting plates (12) through two sets of extraction mechanisms. The upper surfaces of the two sets of mounting plates (12) are fixedly connected to the mounting ends of the bypass switch (13) and the automatic transfer switch (14), respectively. The bottom of the mounting plate (12) is provided with a track groove (15), and a support mechanism is installed inside the track groove (15).

2. The easy-to-maintain pull-out dual-power automatic transfer switch as described in claim 1, characterized in that, The extraction mechanism includes a pull-out groove (16) and a slider (17). The pull-out groove (16) is located inside the two sets of support plates (11), and one end of the slider (17) is fixedly connected to the bottom of the mounting plate (12).

3. A pull-out type dual-power automatic transfer switch for easy maintenance as described in claim 2, characterized in that, The size of the slider (17) matches the size of the pull-out groove (16) and is slidably connected to its inner wall. The bottom surface of the mounting plate (12) contacts the upper surface of the support plate (11) and is slidably connected to its surface.

4. The easy-to-maintain pull-out dual-power automatic transfer switch as described in claim 1, characterized in that, The support mechanism includes a movable block (18) which is slidably connected inside the track groove (15).

5. A pull-out type dual-power automatic transfer switch for easy maintenance as described in claim 4, characterized in that, The movable block (18) is internally fixedly connected to a fixed shaft (19), and a torsion spring (2) is sleeved on the outside of the fixed shaft (19). The torsion spring (2) and the outside of the fixed shaft (19) are connected to a movable support arm (22) through a through hole (21).

6. A pull-out type dual-power automatic transfer switch for easy maintenance as described in claim 5, characterized in that, One end of the torsion spring (2) is fixedly connected to the outer surface of the fixed shaft (19), and the other end of the torsion spring (2) is fixedly connected to the inner wall of the through hole (21). The through hole (21) passes through one end of the movable support arm (22).

7. A pull-out type dual-power automatic transfer switch for easy maintenance as described in claim 6, characterized in that, The other end of the movable support arm (22) is fixedly connected to a sleeve plate (23), and an extension plate (24) is slidably connected inside the sleeve plate (23).

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