Power distribution network grounding device
By designing a distribution network grounding device, using a structure of cover plate, shell, snap block and lock block, the cover plate is quickly removed and locked, solving the problem of difficulty in disassembling traditional grounding devices, and improving the practicality and safety of the equipment through wire retraction and shock absorption and buffering functions.
Patent Information
- Application Number
- CN202421525665.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-01
AI Technical Summary
Traditional distribution network grounding devices are difficult to disassemble during internal maintenance of equipment, reducing the work efficiency of staff.
A distribution network grounding device is designed, adopting a structure of cover plate, shell, snap block and lock block. The cover plate is quickly disassembled and locked by rotating handle and lock block, and the grounding wire is retracted and released by combining the rotating ring and winding wheel.
It realizes rapid disassembly and locking of the cover plate, solves the problem of difficulty in disassembly during internal maintenance of the equipment, and improves the practicality and safety of the equipment through wire retraction and shock absorption and buffering functions.
Smart Images
Figure CN222953541U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field related to power distribution networks, and in particular to a grounding device for a power distribution network. Background Art
[0002] The distribution network is an important part of the power system. It is responsible for reducing the voltage of high-voltage electric energy sent by the transmission network and distributing it to end users. The distribution network mainly includes distribution lines, substations, distribution devices and other facilities. The grounding device of the distribution network is set up to ensure the safe and reliable operation of the power grid and personal safety. When lightning strikes the power system, the grounding device can introduce the lightning impulse current into the earth, thereby protecting the power equipment and system from damage.
[0003] The traditional distribution network grounding device mainly consists of two parts: the grounding body and the grounding wire. The grounding body is usually a metal rod, plate or mesh buried underground, while the grounding wire is a conductor connecting the grounding body and the power grid equipment. When a grounding fault occurs in the power system (such as the equipment casing is energized, the line is short-circuited, etc.), the fault current will flow to the grounding body through the grounding wire and disperse into the earth. In the event of a grounding fault, the grounding device can significantly reduce the contact voltage at the fault point and reduce the risk of electric shock.
[0004] The above-mentioned traditional grounding device needs regular inspection and maintenance to ensure its reliability. The traditional grounding device is difficult to disassemble through threaded connection, which is time-consuming and labor-intensive, and reduces the work efficiency of the staff. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a distribution network grounding device, which aims to improve the problem of rapid opening when workers need to inspect and repair the inside of the equipment.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a distribution network grounding device, comprising a cover plate, an outer wall of the cover plate is fixedly connected to a handle, an outer wall of the cover plate is slidably connected to a shell, an outer wall of the shell is fixedly connected to a snap block, the outer wall of the handle is rotatably connected to the outer wall of the snap block, the interior of the shell is fixedly connected to a support frame, the interior of the shell is rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to a rotating ring, the outer wall of the rotating rod is rotatably connected to the outer wall of the support frame, the outer wall of the rotating rod is fixedly connected to a winding wheel, the outer wall of the winding wheel is rotatably connected to a grounding wire, one end of the grounding wire is fixedly connected to a grounding head, the lower surface of the cover plate is fixedly connected to a snap plate, and the outer wall of the shell is provided with a sliding component.
[0007] Furthermore, the sliding assembly comprises a circular ring, the outer wall of the circular ring is fixedly connected to the inside of the shell, and the inside of the circular ring is slidably connected to a connecting rod.
[0008] Furthermore, one end of the connecting rod is fixedly connected to a limiting block, and a first spring is provided on an outer wall of the connecting rod.
[0009] Furthermore, one end of the first spring is fixedly connected to the inside of the circular ring, and the other end of the first spring is fixedly connected to the inside of the limiting block.
[0010] Furthermore, one end of the connecting rod is rotatably connected to a locking block, and the outer wall of the locking block is rotatably connected to the outer wall of the ring.
[0011] Furthermore, the outer wall of the shell is fixedly connected with a first insulating layer, and the outer wall of the grounding head is arranged inside the first insulating layer.
[0012] Furthermore, a second spring is fixedly connected inside the first insulating layer, and an annular plate is fixedly connected to one end of the second spring.
[0013] Furthermore, a fixing plate is slidably connected to the outer wall of the first insulating layer, bolts are connected to the inner threads of the fixing plate, a second insulating layer is arranged on the outer wall of the fixing plate, and a positioning plate is fixedly connected to the lower surface of the second insulating layer.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the utility model, the cover plate and the buckle plate can be fixed by rotating the locking block multiple times, and the cover plate can be further locked firmly by rotating the handle, thereby achieving the beneficial effect of disassembling and locking the cover plate, and solving the problem of rapid opening when the staff needs to inspect the inside of the equipment.
[0016] 2. In the utility model, the grounding wire is wound and released by the rotating ring, and the grounding head is damped by the second spring, thereby achieving the beneficial effects of winding, releasing and shock absorbing, and solving the problem of line entanglement and short circuit caused by the grounding wire being too long. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a three-dimensional structural schematic diagram of a distribution network grounding device proposed by the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of one side of the shell of a power distribution network grounding device proposed by the utility model;
[0019] Figure 3 This is a partial structural diagram of one side of a locking block of a distribution network grounding device proposed by the utility model;
[0020] Figure 4This is a schematic diagram of the structure of one side of a grounding head of a distribution network grounding device proposed by the utility model;
[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle.
[0022] Legend:
[0023] 1. Cover plate; 2. Shell; 3. Handle; 4. Buckle block; 5. Ring; 6. Locking block; 7. Limit block; 8. First spring; 9. Connecting rod; 10. Buckle plate; 11. Rotating ring; 12. Support frame; 13. Winding wheel; 14. Grounding wire; 15. Grounding head; 16. First insulating layer; 17. Fixing plate; 18. Bolt; 19. Second insulating layer; 20. Positioning plate; 21. Second spring; 22. Ring plate; 23. Rotating rod. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a distribution network grounding device, including a cover plate 1, the outer wall of the cover plate 1 is fixedly connected with a handle 3, the outer wall of the cover plate 1 is slidably connected with a shell 2, the outer wall of the shell 2 is fixedly connected with a buckle block 4, the outer wall of the handle 3 is rotatably connected to the outer wall of the buckle block 4, the inside of the shell 2 is fixedly connected with a support frame 12, the inside of the shell 2 is rotatably connected with a rotating rod 23, one end of the rotating rod 23 is fixedly connected with a rotating ring 11, the outer wall of the rotating rod 23 is rotatably connected to the outer wall of the support frame 12, the outer wall of the rotating rod 23 is fixedly connected with a winding wheel 13, the outer wall of the winding wheel 13 is rotatably connected with a grounding wire 14, one end of the grounding wire 14 is fixedly connected with a grounding head 15, the lower surface of the cover plate 1 is fixedly connected with a buckle plate 10, and the outer wall of the shell 2 is provided with a sliding component.
[0026] Specifically, the handle 3 is turned to disengage the buckle block 4, so that the cover 1 can be opened. The grounding wire 14 inside can be seen by opening the cover 1. The grounding wire 14 is rotated around the winding wheel 13 by rotating the ring 11, which plays the role of paying out and winding the wire, avoiding the problem of unsightly interior of the equipment due to the excessive length of the grounding wire 14 and line short circuit due to line entanglement, thereby improving the practicability and safety of the equipment.
[0027] Reference Figure 1 - Figure 3 The sliding assembly includes a circular ring 5, the outer wall of the circular ring 5 is fixedly connected to the inside of the shell 2, the inside of the circular ring 5 is slidably connected with a connecting rod 9, one end of the connecting rod 9 is fixedly connected to a limiting block 7, the outer wall of the connecting rod 9 is provided with a first spring 8, one end of the first spring 8 is fixedly connected to the inside of the circular ring 5, the other end of the first spring 8 is fixedly connected to the inside of the limiting block 7, one end of the connecting rod 9 is rotatably connected with a locking block 6, and the outer wall of the locking block 6 is rotatably connected to the outer wall of the circular ring 5.
[0028] Specifically, the locking block 6 is rotated so that one end of the locking block 6 is rotated to the surface of the ring 5 and contacts the surface of the ring 5, and the locking block 6 is rotated to drive the limit block 7 and the connecting rod 9 to move outward inside the ring 5, and the limit block 7 and the connecting rod 9 are detached from the snap plate 10 by sliding the limit block 7 and the connecting rod 9 out, and the cover plate 1 and the snap plate 10 are allowed to slide out by opening the locking blocks 6 on both sides, thereby taking out the cover plate 1 and the snap plate 10. When the snap plate 10 and the cover plate 1 need to be fixed, the locking block 6 is gently pulled to utilize the rebound characteristics of the first spring 8 to move the limit block 7 and the connecting rod 9 to the inside of the snap plate 10, thereby locking the snap plate 10.
[0029] Reference Figure 4 - Figure 5 The outer wall of the shell 2 is fixedly connected with the first insulating layer 16, the outer wall of the grounding head 15 is arranged inside the first insulating layer 16, the inside of the first insulating layer 16 is fixedly connected with the second spring 21, one end of the second spring 21 is fixedly connected with the annular plate 22, the outer wall of the first insulating layer 16 is slidably connected with the fixing plate 17, the internal thread of the fixing plate 17 is connected with the bolt 18, the outer wall of the fixing plate 17 is provided with the second insulating layer 19, and the lower surface of the second insulating layer 19 is fixedly connected with the positioning plate 20.
[0030] Specifically, by adding a first insulating layer 16 and a second insulating layer 19 to the outer surface of the grounding head 15, rainwater and other elements from the outside will not affect the conductive properties of the grounding head 15. By adding a second spring 21 and an annular plate 22 on the outer wall of the grounding head 15, when the grounding head 15 shakes, it will not break or shift in position due to the shaking. The diamond-shaped tip under the positioning plate 20 allows the grounding head 15 to be completely inserted into the ground, thereby fixing the grounding head 15 and the entire device.
[0031] Working principle: When a distribution network grounding device is needed, first, the handle 3 is turned to disengage the buckle block 4, and the locking block 6 is turned from a vertical state to a horizontal state, and the locking block 6 is turned to drive the limit block 7 and the connecting rod 9 to move outward, and the locking blocks 6 and the handle 3 on both sides are opened so that the cover plate 1 and the buckle plate 10 can slide out, and the cover plate 1 and the buckle plate 10 are placed in the interior of the shell 2, and the locking block 6 is gently pulled upward to utilize the rebound characteristics of the first spring 8 to move the limit block 7 and the connecting rod 9 to the interior of the buckle plate 10, thereby locking the buckle plate 10. The cover plate 1 and the buckle plate 10 are locked more firmly by turning the handle 3, the grounding wire 14 inside can be seen by opening the cover plate 1, and the grounding wire 14 is rotated around the winding wheel 13 by rotating the ring 11, so as to achieve the effect of winding and reeling in the wire, and avoid the grounding wire 14 being too long. The grounding wire 14 is connected to the grounding head 15 so that electricity can be introduced into the ground, and a second spring 21 is added to the outer surface of the grounding head 15 to reduce the influence of external shaking on the grounding head 15, and the first insulating layer 16 and the second insulating layer 19 are installed to effectively prevent rainwater from entering the grounding head 15 and affecting the conductivity when it rains.
[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A distribution network grounding device, comprising a cover plate (1), characterized in that: The outer wall of the cover plate (1) is fixedly connected with a handle (3), the outer wall of the cover plate (1) is slidably connected with a shell (2), the outer wall of the shell (2) is fixedly connected with a buckle block (4), the outer wall of the handle (3) is rotatably connected to the outer wall of the buckle block (4), the interior of the shell (2) is fixedly connected with a support frame (12), the interior of the shell (2) is rotatably connected with a rotating rod (23), one end of the rotating rod (23) is fixedly connected with a rotating ring (11), the outer wall of the rotating rod (23) is rotatably connected to the outer wall of the support frame (12), the outer wall of the rotating rod (23) is fixedly connected with a winding wheel (13), the outer wall of the winding wheel (13) is rotatably connected with a grounding wire (14), one end of the grounding wire (14) is fixedly connected with a grounding head (15), the lower surface of the cover plate (1) is fixedly connected with a buckle plate (10), and the outer wall of the shell (2) is provided with a sliding component.
2. A distribution network grounding device according to claim 1, characterized in that: The sliding assembly comprises a circular ring (5), the outer wall of the circular ring (5) is fixedly connected to the inside of the housing (2), and the inside of the circular ring (5) is slidably connected to a connecting rod (9).
3. A distribution network grounding device according to claim 2, characterized in that: One end of the connecting rod (9) is fixedly connected to the limiting block (7), and the outer wall of the connecting rod (9) is provided with a first spring (8).
4. A distribution network grounding device according to claim 3, characterized in that: One end of the first spring (8) is fixedly connected to the inside of the ring (5), and the other end of the first spring (8) is fixedly connected to the inside of the limit block (7).
5. A distribution network grounding device according to claim 3, characterized in that: One end of the connecting rod (9) is rotatably connected to a locking block (6), and the outer wall of the locking block (6) is rotatably connected to the outer wall of the ring (5).
6. A distribution network grounding device according to claim 2, characterized in that: The outer wall of the shell (2) is fixedly connected to a first insulating layer (16), and the outer wall of the grounding head (15) is arranged inside the first insulating layer (16).
7. A distribution network grounding device according to claim 6, characterized in that: A second spring (21) is fixedly connected inside the first insulating layer (16), and an annular plate (22) is fixedly connected to one end of the second spring (21).
8. A distribution network grounding device according to claim 7, characterized in that: The outer wall of the first insulating layer (16) is slidably connected to a fixing plate (17), the inner thread of the fixing plate (17) is connected to a bolt (18), the outer wall of the fixing plate (17) is provided with a second insulating layer (19), and the lower surface of the second insulating layer (19) is fixedly connected to a positioning plate (20).