Handcart mechanism for switch cabinet

Abstract

The utility model discloses a handcart mechanism for a switch cabinet, which comprises a handcart body, a panel is arranged on the handcart body, a conjoined insulator is arranged on the back of the panel, and an insulating contact arm is arranged on the conjoined insulator; the insulating contact arm is connected with a static contact on the fuse through an arranged moving contact, and an elastic ring is mounted on the ring surface of the moving contact; the vehicle body is further provided with a lightning arrester, and the upper end of the lightning arrester is connected with the connecting busbar through a wire. In conclusion, the lightning arrester is integrated on the vehicle body, so that the rapid maintenance and replacement of the lightning arrester can be realized through a handcart type structure, and the safety and reliability of equipment are enhanced at the same time. In addition, the moving contact is also provided with an elastic ring, so that the moving contact has elasticity to ensure that the contact pressure is stable and the heating loss is reduced. Specifically, the elastic ring is an inclined ring spring, so that the installation and disassembly of the elastic ring and the moving contact are simple and convenient, and the maintenance convenience of the equipment is further improved.

Description

Technical Field

[0001] This utility model relates to the field of switchgear technology, specifically to a handcart mechanism for switchgear. Background Technology

[0002] Traditional fixed fuse surge arrester assemblies are difficult to maintain, have long power outage times, and require a lot of space for separate installation of surge arresters and fuses, which in turn leads to complicated wiring. Utility Model Content

[0003] The purpose of this utility model is to provide a handcart mechanism for switch cabinets to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a trolley mechanism for switchgear, comprising a trolley body, a panel on the trolley body, an integral insulator on the back of the panel, and an insulating contact arm on the integral insulator; the insulating contact arm is connected to a stationary contact on a fuse via a moving contact, and an elastic ring is installed on the annular surface of the moving contact; the trolley body is also provided with a surge arrester, and the upper end of the surge arrester is connected to a connecting busbar via a conductor.

[0005] As a preferred technical solution of this utility model: the vehicle body is also provided with a lead screw, and the vehicle body is moved by rotating the lead screw.

[0006] As a preferred technical solution of this utility model: the vehicle body is also provided with a handle, and the lead screw is rotated by the handle.

[0007] As a preferred technical solution of this utility model, the vehicle body is also equipped with a lightning arrester counter.

[0008] As a preferred technical solution of this utility model: guide rails are provided on both sides of the vehicle body, and rollers are installed on the guide rails, and the rollers are rotatably installed on the guide rails by the provided shaft pins.

[0009] As a preferred technical solution of this utility model: the end of the guide rail facing the roller shaft is also provided with a warped portion.

[0010] As a preferred technical solution of this utility model: the guide rail is further provided with fasteners, and the provided fasteners pass through the guide rail and abut against the shaft pin to fix the roller shaft on the guide rail.

[0011] As a preferred technical solution of this utility model, the elastic ring is a helical spring.

[0012] The beneficial effects of this utility model by adopting the above technical solution are: the surge arrester is integrated into the vehicle body, thus enabling rapid inspection and replacement of the surge arrester through the handcart-type structure, while enhancing the safety and reliability of the equipment. In addition, an elastic ring is provided on the moving contact, thus providing elasticity to ensure stable contact pressure and reduce heat loss. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 Figure 1 A magnified view of a portion of point A in the middle;

[0015] Figure 3 for Figure 1 A magnified view of a portion of point B in the middle;

[0016] Figure 4 This is a side view of the main structure of the present utility model;

[0017] In the diagram: 1. Vehicle body; 2. Panel; 3. Lead screw; 4. Surge arrester counter; 5. Integrated insulator; 6. Insulating contact arm; 7. Moving contact; 8. Handle; 9. Surge arrester; 10. Connecting busbar; 11. Guide rail; 12. Elastic ring; 13. Roller; 14. Shaft pin; 15. Warped part; 16. Fastener. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model.

[0019] Please see Figure 1-4This utility model provides an embodiment of a handcart mechanism for a switchgear, comprising a car body 1, a panel 2 on the car body 1, and an integral insulator 5 on the back of the panel 2, and an insulating contact arm 6 on the integral insulator 5; the insulating contact arm 6 is connected to the stationary contact on a fuse through a moving contact 7, and an elastic ring 12 is installed on the annular surface of the moving contact 7; the car body 1 is also provided with a surge arrester 9, and the upper end of the surge arrester 9 is connected to a connecting busbar 10 through a wire.

[0020] In summary, by integrating the surge arrester 9 onto the vehicle body 1, the handcart-style structure enables rapid inspection and replacement of the surge arrester 9, while simultaneously enhancing the safety and reliability of the equipment. Furthermore, the moving contact 7 is equipped with an elastic ring 12, which provides elasticity to the moving contact, ensuring stable contact pressure and reducing heat loss. Specifically, the elastic ring 12 is a helical coil spring, making the installation and disassembly of the elastic ring 12 and the moving contact 7 simple and convenient, further improving the ease of maintenance of the equipment.

[0021] In addition, since the vehicle body 1 is also equipped with a lead screw 3, the vehicle body moves by rotating the lead screw 3. Therefore, the movement of the vehicle body 1 is stable and reliable, and the vehicle body 1 will not be displaced as long as the lead screw 3 does not rotate after movement.

[0022] To facilitate the rotation of the lead screw 3, a handle 8 is also provided on the vehicle body 1, and the lead screw 3 is rotated by the handle 8. Therefore, the vehicle body 1 can be easily moved by rotating the handle 8.

[0023] Since the vehicle body 1 is also equipped with a surge arrester counter 4, the surge arrester counter 4 can be used to monitor and record lightning activity. By sensing changes in lightning current, lightning strike events can be recorded, which helps managers to understand the lightning activity situation and carry out preventive maintenance and risk assessment.

[0024] Based on the above solution, since guide rails 11 are provided on both sides of the vehicle body 1, and roller shafts 13 are installed on the guide rails 11, and the roller shafts 13 are rotatably installed on the guide rails 11 by the provided shaft pins 14, the resistance of the vehicle body 1 when moving can be reduced by using the roller shafts 13, and the noise generated when the vehicle body 1 moves can also be reduced. Based on this, the movement of the vehicle body 1 is smooth and quiet.

[0025] Furthermore, since the guide rail 11 is provided with a warped portion 15 at the end facing the roller 13, when the locking pin on the car body 1 falls down, it gets stuck on the outside of the warped portion 15 to prevent the car body 1 from moving.

[0026] In addition, since the guide rail 11 is also provided with fasteners 16, and the fasteners 16 pass through the guide rail 11 and abut against the shaft pin 14 to fix the roller shaft 13 on the guide rail 11, the installation and replacement of the roller shaft 13 are simple and convenient.

[0027] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A trolley mechanism for a switchgear, characterized in that: Includes a vehicle body (1), a panel (2) is provided on the vehicle body (1), and a connected insulator (5) is provided on the back of the panel (2), and an insulating contact arm (6) is provided on the connected insulator (5). The insulating contact arm (6) is connected to the stationary contact on the fuse through a movable contact (7), and an elastic ring (12) is installed on the annular surface of the movable contact (7). The vehicle body (1) is also equipped with a surge arrester (9), and the upper end of the surge arrester (9) is connected to the connecting busbar (10) via a wire.

2. The handcart mechanism for a switchgear according to claim 1, characterized in that: The vehicle body (1) is also provided with a lead screw (3), and the vehicle body moves by rotating the lead screw (3).

3. The handcart mechanism for a switchgear according to claim 2, characterized in that: The vehicle body (1) is also provided with a handle (8), and the screw (3) is rotated by the handle (8).

4. The handcart mechanism for a switchgear according to claim 3, characterized in that: The vehicle body (1) is also equipped with a lightning arrester counter (4).

5. A trolley mechanism for a switchgear according to any one of claims 1-4, characterized in that: The vehicle body (1) is also provided with guide rails (11) on both sides, and roller shafts (13) are installed on the guide rails (11), and the roller shafts (13) are rotatably installed on the guide rails (11) by means of the provided shaft pins (14).

6. The handcart mechanism for a switchgear according to claim 5, characterized in that: The guide rail (11) is also provided with a warped portion (15) at one end facing the roller (13).

7. A trolley mechanism for a switchgear according to claim 6, characterized in that: The guide rail (11) is also provided with fasteners (16), and the fasteners (16) pass through the guide rail (11) and abut against the shaft pin (14) to fix the roller shaft (13) on the guide rail (11).

8. A trolley mechanism for a switchgear according to claim 7, characterized in that: The elastic ring (12) is a helical spring.

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