Grounding mechanism of ring main unit

Abstract

The utility model discloses a grounding mechanism of a ring main unit, which comprises a copper bar body, one side of the outer surface of the copper bar body is provided with a fixing frame, the top of the fixing frame is uniformly inserted with a plurality of shells in a limiting manner, and a limiting assembly is arranged between the shells and the fixing frame; the tops of the multiple shells are each provided with a sliding rod penetrating to the bottom, the sliding rods are slidably connected with the shells, and one side of the outer surface of each sliding rod is fixedly connected with a rack. According to the utility model, through the arrangement of the fixing frame, the shell, the limiting assembly, the sliding rod, the rack, the pinion, the connecting shaft, the screw rod and the insulating ceramic pressing block, the wiring terminal of the grounding wire can be fixed by directly pressing the sliding rod after the wiring terminal is placed at a corresponding position, and tools such as a wrench are not needed for auxiliary installation; and in addition, after the fixing mechanism is damaged, the fixing mechanism can be rapidly replaced, and the using effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding mechanisms, in particular to a grounding mechanism for a ring main unit. Background Technique

[0002] As an important part of the power system, the safety and stability of the ring main unit are crucial. Among the many components of the ring main unit, the grounding mechanism is an indispensable link.

[0003] The copper bar of the grounding wire in the ring main unit is usually called the "grounding copper bar", which is one of the important grounding devices inside the power distribution cabinet. Its main function is to connect the grounding wires of various devices to ensure the safety of electrical equipment and personnel.

[0004] Currently, when connecting the grounding wire in the ring main unit to the copper bar, it is usually fixed by cooperating with a terminal block, bolts and nuts. During assembly, a manual wrench or an electric wrench is required for operation. Due to the small space inside the ring main unit, it is inconvenient to install with tools, and the assembly efficiency is also low. Therefore, a grounding mechanism for a ring main unit is proposed. Content of the Utility Model

[0005] The utility model is proposed to solve the shortcomings existing in the prior art, and provides a grounding mechanism for a ring main unit.

[0006] To achieve the above object, the utility model adopts the following technical scheme: A grounding mechanism for a ring main unit, including a copper bar body, a fixing frame is arranged on one side of the outer surface of the copper bar body, a plurality of shells are evenly and limitably inserted on the top of the fixing frame, and a limiting component is jointly installed between each of the plurality of shells and the fixing frame;

[0007] A sliding rod penetrating through to the bottom is arranged on the top of each of the plurality of shells, and the sliding rod is slidably connected with the shell. A rack is fixedly connected to one side of the outer surface of each of the plurality of sliding rods, and each of the plurality of racks is meshed with a small gear. A connecting shaft is fixedly connected to the inner surface of each of the plurality of small gears, and the connecting shaft is limitably rotatably connected with the shell;

[0008] A screw rod is fixedly connected to one end of the copper bar body for each of the plurality of connecting shafts. An insulating ceramic pressing block is threadedly sleeved on the outer surface of each of the plurality of screw rods, and the insulating ceramic pressing block is matched with the copper bar body.

[0009] Furthermore, each of the plurality of limiting components includes two limiting plates, and the limiting plates are fixedly installed on the outer wall of one side of the shell. The two limiting plates are respectively attached to the outer walls of both sides of the fixing frame. A limiting pin is attached to one side of the outer surface of a single limiting plate, and the inserting rod part of the limiting pin penetrates through the adjacent limiting plate and extends to the outer wall of the other limiting plate. The limiting pin is limitably inserted between the two limiting plates, which is beneficial to the positioning and installation of the shell.

[0010] Further, a plurality of positioning through holes penetrating to the other side are formed on one side of the outer surface of the fixing frame, and the positioning through holes are matched with adjacent limiting pins, which is beneficial to the positioning connection between the limiting plate and the fixing frame.

[0011] Further, a plurality of assembly holes penetrating to the bottom are uniformly formed at the top of the copper bar body, and the assembly holes are matched with the insulating ceramic pressing blocks, which is beneficial to fixing the wiring terminals.

[0012] Further, two mounting seats are symmetrically and fixedly installed on one side of the outer surface of the copper bar body, and the mounting seats are fixedly connected to the fixing frame. The arrangement of the mounting seats is beneficial to the installation of the copper bar body and the fixing frame.

[0013] Further, limiting sleeves are slidably sleeved on the outer surfaces of the plurality of insulating ceramic pressing blocks, and the limiting sleeves are fixedly connected to the housing. The limiting sleeves have a limiting effect on the insulating ceramic pressing blocks and can ensure the stability of the movement of the insulating ceramic pressing blocks.

[0014] Further, pressing plates are fixedly connected to both ends of the plurality of sliding rods. The arrangement of the pressing plates is beneficial to manual pressing operations and provides a linear driving force for the fixing operation.

[0015] Advantages of the present utility model:

[0016] When the present utility model is in use, for the grounding mechanism of a ring main unit, by arranging the fixing frame, the housing, the limiting assembly, the sliding rod, the rack, the pinion, the connecting shaft, the screw rod and the insulating ceramic pressing block, when fixing the wiring terminal of the grounding wire, after placing it in the corresponding position, directly pressing the sliding rod can perform the fixing, without the need to use tools such as wrenches for auxiliary installation, making the installation more convenient and fast. Moreover, when the fixing mechanism is damaged, it can be quickly replaced to ensure the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for use in the following description of the specific embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 : The overall first perspective structure diagram of the present utility model;

[0019] Figure 2 : The overall second perspective structure diagram of the present utility model;

[0020] Figure 3 : The partial cross-sectional view of the present utility model.

[0021] The reference numerals are as follows:

[0022] 1. Copper busbar body; 2. Mounting seat; 3. Fixing frame; 4. Insulating ceramic pressing block; 5. Housing; 6. Assembly hole; 7. Pressing plate; 8. Connecting shaft; 9. Pinion gear; 10. Limit pin; 11. Screw; 12. Limit sleeve; 13. Rack; 14. Slide bar; 15. Limit plate. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0024] As Figures 1 to 3 shown, it relates to a grounding mechanism of a ring main unit, including a copper busbar body 1. A fixing frame 3 is provided on one side of the outer surface of the copper busbar body 1. Two mounting seats 2 are symmetrically and fixedly installed on one side of the outer surface of the copper busbar body 1, and the mounting seats 2 are fixedly connected to the fixing frame 3. A plurality of housings 5 are evenly and limit-inserted on the top of the fixing frame 3. A limit assembly is commonly installed between the plurality of housings 5 and the fixing frame 3. Each limit assembly includes two limit plates 15, and the limit plates 15 are fixedly installed on the outer wall of one side of the housing 5, and the two limit plates 15 are respectively attached to the outer walls of both sides of the fixing frame 3. A limit pin 10 is attached to the outer surface of one side of a single limit plate 15, and the inserted rod portion of the limit pin 10 penetrates through the adjacent limit plate 15 and extends to the outer wall of the other limit plate 15, and the limit pin 10 is limit-inserted between the two limit plates 15. A plurality of positioning through holes penetrating to the other side are provided on one side of the outer surface of the fixing frame 3, and the positioning through holes are matched with the adjacent limit pins 10. A rubber sleeve is sleeved on the outer surface of the limit pin 10, and the rubber sleeve is fixedly connected to the adjacent limit plate 15, increasing the moving resistance of the limit pin 10 and preventing loosening caused by vibration or other reasons without external force.

[0025] A slide bar 14 penetrating to the bottom is provided on the top of each of the plurality of housings 5, and the slide bar 14 is slidably connected to the housing 5. Pressing plates 7 are fixedly connected to both ends of the plurality of slide bars 14. A rack 13 is fixedly connected to the outer surface of one side of the plurality of slide bars 14. The plurality of racks 13 are meshed with a pinion gear 9. A connecting shaft 8 is fixedly connected to the inner surface of each of the plurality of pinion gears 9, and the connecting shaft 8 is limit-rotatably connected to the housing 5. The housing 5 has a supporting effect on the connecting shaft 8, which is beneficial to the installation of the connecting shaft 8.

[0026] A plurality of connecting shafts 8 are fixedly connected to one end of the copper bar body 1, and screw rods 11 are threadedly sleeved on the outer surfaces of the plurality of screw rods 11. Insulating ceramic pressing blocks 4 are slidably sleeved on the outer surfaces of the plurality of insulating ceramic pressing blocks 4, and the insulating ceramic pressing blocks 4 are matched with the copper bar body 1. The limiting sleeves 12 are fixedly connected between the limiting sleeves 12 and the housing 5. The limiting sleeves 12 have a limiting effect on the insulating ceramic pressing blocks 4, which can ensure the stability of the movement of the insulating ceramic pressing blocks 4.

[0027] A plurality of assembly holes 6 penetrating through to the bottom are uniformly formed in the top of the copper bar body 1, and the assembly holes 6 are matched with the insulating ceramic pressing blocks 4.

[0028] Working principle: When installing the housing 5, the limiting plate 15 is inserted into the fixing frame 3, and then the limiting pin 10 is inserted into the limiting plate 15 and the fixing frame 3 to complete the fixing of the housing 5; when wiring, the wiring terminal is sleeved on the wiring end of the insulating ceramic pressing block 4, and then the pressing plate 7 is pressed. The pressing plate 7 drives the sliding rod 14 to move downward, the sliding rod 14 drives the rack 13 to move downward, and when the rack 13 moves, it drives the connecting shaft 8 to rotate through the pinion 9. The connecting shaft 8 drives the screw rod 11 to rotate, and the screw rod 11 drives the insulating ceramic pressing block 4 to move toward the copper bar body 1 until the insulating terminal is in abutting connection and fixation with the copper bar body 1.

[0029] This application uses a linear driving thrust to replace the original rotational force for locking operations, making the application of force more convenient, so that a wrench can be replaced for operation. The size of the pressing plate 7 can be increased according to actual needs to facilitate the application of force.

[0030] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to only the specific embodiments. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the art in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A grounding mechanism for a ring main unit, comprising a copper bar body (1), characterized in that: On one side of the outer surface of the copper bar body (1), a fixing frame (3) is provided. On the top of the fixing frame (3), a plurality of shells (5) are evenly and limit-inserted. A limiting component is jointly installed between the plurality of shells (5) and the fixing frame (3); On the top of each of the plurality of shells (5), a slide bar (14) penetrating to the bottom is provided, and the slide bar (14) is slidably connected to the shell (5). On one side of the outer surface of each of the plurality of slide bars (14), a rack (13) is fixedly connected. Each of the plurality of racks (13) is meshed with a pinion (9). On the inner surface of each of the plurality of pinions (9), a connecting shaft (8) is fixedly connected, and the connecting shaft (8) is limit-rotatably connected to the shell (5); At one end of the copper bar body (1), each of the plurality of connecting shafts (8) is fixedly connected with a screw rod (11). On the outer surface of each of the plurality of screw rods (11), an insulating ceramic pressing block (4) is threadedly sleeved, and the insulating ceramic pressing block (4) is matched with the copper bar body (1).

2. The grounding mechanism of a ring main unit according to claim 1, characterized in that: Each of the plurality of limiting components includes two limiting plates (15). The limiting plates (15) are fixedly installed on one side outer wall of the shell (5), and the two limiting plates (15) are respectively attached to the two side outer walls of the fixing frame (3). On one side of the outer surface of a single limiting plate (15), a limiting pin (10) is attached. The insertion rod part of the limiting pin (10) penetrates through the adjacent limiting plate (15) and extends to the outer wall of the other limiting plate (15), and the limiting pin (10) is limit-inserted between the two limiting plates (15).

3. The grounding mechanism of a ring main unit according to claim 2, characterized in that: On one side of the outer surface of the fixing frame (3), a plurality of positioning through holes penetrating to the other side are opened, and the positioning through holes are matched with the adjacent limiting pins (10).

4. The grounding mechanism of a ring main unit according to claim 1, characterized in that: On the top of the copper bar body (1), a plurality of assembly holes (6) penetrating to the bottom are evenly opened, and the assembly holes (6) are matched with the insulating ceramic pressing blocks (4).

5. The grounding mechanism of a ring main unit according to claim 1, characterized in that: On one side of the outer surface of the copper bar body (1), two mounting seats (2) are symmetrically and fixedly installed, and the mounting seats (2) are fixedly connected to the fixing frame (3).

6. The grounding mechanism of a ring main unit according to claim 1, characterized in that: On the outer surface of each of the plurality of insulating ceramic pressing blocks (4), a limiting sleeve (12) is slidably sleeved, and the limiting sleeve (12) is fixedly connected to the shell (5).

7. The grounding mechanism of a ring main unit according to claim 1, characterized in that: At both ends of each of the plurality of slide bars (14), a pressing plate (7) is fixedly connected.

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